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 #include <sys/types.h>
40 int read_section(FILE *input_file
, int length_size
, char section
, u32
*buffer_length
, u8
**buffer
)
47 if ((length_size
!= 2) && (length_size
!= 4))
49 ERROR("BUG: length_size neither 2 nor 4");
50 return ERROR_PLD_FILE_LOAD_FAILED
;
53 if ((read_count
= fread(§ion_char
, 1, 1, input_file
)) != 1)
55 return ERROR_PLD_FILE_LOAD_FAILED
;
58 if (section_char
!= section
)
60 return ERROR_PLD_FILE_LOAD_FAILED
;
63 if ((read_count
= fread(length_buffer
, 1, length_size
, input_file
)) != length_size
)
65 return ERROR_PLD_FILE_LOAD_FAILED
;
69 length
= be_to_h_u32(length_buffer
);
70 else /* (length_size == 2) */
71 length
= be_to_h_u16(length_buffer
);
74 *buffer_length
= length
;
76 *buffer
= malloc(length
);
78 if ((read_count
= fread(*buffer
, 1, length
, input_file
)) != length
)
80 return ERROR_PLD_FILE_LOAD_FAILED
;
86 int xilinx_read_bit_file(xilinx_bit_file_t
*bit_file
, char *filename
)
89 struct stat input_stat
;
92 if (!filename
|| !bit_file
)
93 return ERROR_INVALID_ARGUMENTS
;
95 if (stat(filename
, &input_stat
) == -1)
97 ERROR("couldn't stat() %s: %s", filename
, strerror(errno
));
98 return ERROR_PLD_FILE_LOAD_FAILED
;
101 if (S_ISDIR(input_stat
.st_mode
))
103 ERROR("%s is a directory", filename
);
104 return ERROR_PLD_FILE_LOAD_FAILED
;
107 if (input_stat
.st_size
== 0){
108 ERROR("Empty file %s", filename
);
109 return ERROR_PLD_FILE_LOAD_FAILED
;
112 if (!(input_file
= fopen(filename
, "rb")))
114 ERROR("couldn't open %s: %s", filename
, strerror(errno
));
115 return ERROR_PLD_FILE_LOAD_FAILED
;
118 if ((read_count
= fread(bit_file
->unknown_header
, 1, 13, input_file
)) != 13)
120 ERROR("couldn't read unknown_header from file '%s'", filename
);
121 return ERROR_PLD_FILE_LOAD_FAILED
;
124 if (read_section(input_file
, 2, 'a', NULL
, &bit_file
->source_file
) != ERROR_OK
)
125 return ERROR_PLD_FILE_LOAD_FAILED
;
127 if (read_section(input_file
, 2, 'b', NULL
, &bit_file
->part_name
) != ERROR_OK
)
128 return ERROR_PLD_FILE_LOAD_FAILED
;
130 if (read_section(input_file
, 2, 'c', NULL
, &bit_file
->date
) != ERROR_OK
)
131 return ERROR_PLD_FILE_LOAD_FAILED
;
133 if (read_section(input_file
, 2, 'd', NULL
, &bit_file
->time
) != ERROR_OK
)
134 return ERROR_PLD_FILE_LOAD_FAILED
;
136 if (read_section(input_file
, 4, 'e', &bit_file
->length
, &bit_file
->data
) != ERROR_OK
)
137 return ERROR_PLD_FILE_LOAD_FAILED
;
139 DEBUG("bit_file: %s %s %s,%s %i", bit_file
->source_file
, bit_file
->part_name
,
140 bit_file
->date
, bit_file
->time
, bit_file
->length
);
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