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"
31 int read_section(FILE *input_file
, int length_size
, char section
, u32
*buffer_length
, u8
**buffer
)
38 if ((length_size
!= 2) && (length_size
!= 4))
40 LOG_ERROR("BUG: length_size neither 2 nor 4");
41 return ERROR_PLD_FILE_LOAD_FAILED
;
44 if ((read_count
= fread(§ion_char
, 1, 1, input_file
)) != 1)
46 return ERROR_PLD_FILE_LOAD_FAILED
;
49 if (section_char
!= section
)
51 return ERROR_PLD_FILE_LOAD_FAILED
;
54 if ((read_count
= fread(length_buffer
, 1, length_size
, input_file
)) != length_size
)
56 return ERROR_PLD_FILE_LOAD_FAILED
;
60 length
= be_to_h_u32(length_buffer
);
61 else /* (length_size == 2) */
62 length
= be_to_h_u16(length_buffer
);
65 *buffer_length
= length
;
67 *buffer
= malloc(length
);
69 if ((read_count
= fread(*buffer
, 1, length
, input_file
)) != length
)
71 return ERROR_PLD_FILE_LOAD_FAILED
;
77 int xilinx_read_bit_file(xilinx_bit_file_t
*bit_file
, char *filename
)
80 struct stat input_stat
;
83 if (!filename
|| !bit_file
)
84 return ERROR_INVALID_ARGUMENTS
;
86 if (stat(filename
, &input_stat
) == -1)
88 LOG_ERROR("couldn't stat() %s: %s", filename
, strerror(errno
));
89 return ERROR_PLD_FILE_LOAD_FAILED
;
92 if (S_ISDIR(input_stat
.st_mode
))
94 LOG_ERROR("%s is a directory", filename
);
95 return ERROR_PLD_FILE_LOAD_FAILED
;
98 if (input_stat
.st_size
== 0){
99 LOG_ERROR("Empty file %s", filename
);
100 return ERROR_PLD_FILE_LOAD_FAILED
;
103 if (!(input_file
= fopen(filename
, "rb")))
105 LOG_ERROR("couldn't open %s: %s", filename
, strerror(errno
));
106 return ERROR_PLD_FILE_LOAD_FAILED
;
109 if ((read_count
= fread(bit_file
->unknown_header
, 1, 13, input_file
)) != 13)
111 LOG_ERROR("couldn't read unknown_header from file '%s'", filename
);
112 return ERROR_PLD_FILE_LOAD_FAILED
;
115 if (read_section(input_file
, 2, 'a', NULL
, &bit_file
->source_file
) != ERROR_OK
)
116 return ERROR_PLD_FILE_LOAD_FAILED
;
118 if (read_section(input_file
, 2, 'b', NULL
, &bit_file
->part_name
) != ERROR_OK
)
119 return ERROR_PLD_FILE_LOAD_FAILED
;
121 if (read_section(input_file
, 2, 'c', NULL
, &bit_file
->date
) != ERROR_OK
)
122 return ERROR_PLD_FILE_LOAD_FAILED
;
124 if (read_section(input_file
, 2, 'd', NULL
, &bit_file
->time
) != ERROR_OK
)
125 return ERROR_PLD_FILE_LOAD_FAILED
;
127 if (read_section(input_file
, 4, 'e', &bit_file
->length
, &bit_file
->data
) != ERROR_OK
)
128 return ERROR_PLD_FILE_LOAD_FAILED
;
130 LOG_DEBUG("bit_file: %s %s %s,%s %i", bit_file
->source_file
, bit_file
->part_name
,
131 bit_file
->date
, bit_file
->time
, bit_file
->length
);
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