| 1 | /*
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| 2 | * Copyright (c) 2008 Jakub Jermar
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup fs
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| 30 | * @{
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| 31 | */
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| 32 |
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| 33 | #ifndef FAT_FAT_DENTRY_H_
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| 34 | #define FAT_FAT_DENTRY_H_
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| 35 |
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| 36 | #include <stdint.h>
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| 37 | #include <bool.h>
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| 38 |
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| 39 | #define FAT_NAME_LEN 8
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| 40 | #define FAT_EXT_LEN 3
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| 41 |
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| 42 | #define FAT_NAME_DOT ". "
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| 43 | #define FAT_NAME_DOT_DOT ".. "
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| 44 | #define FAT_EXT_PAD " "
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| 45 |
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| 46 | #define FAT_ATTR_RDONLY (1 << 0)
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| 47 | #define FAT_ATTR_VOLLABEL (1 << 3)
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| 48 | #define FAT_ATTR_SUBDIR (1 << 4)
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| 49 |
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| 50 | #define FAT_LCASE_LOWER_NAME 0x08
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| 51 | #define FAT_LCASE_LOWER_EXT 0x10
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| 52 |
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| 53 | #define FAT_PAD ' '
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| 54 |
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| 55 | #define FAT_DENTRY_UNUSED 0x00
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| 56 | #define FAT_DENTRY_E5_ESC 0x05
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| 57 | #define FAT_DENTRY_DOT 0x2e
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| 58 | #define FAT_DENTRY_ERASED 0xe5
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| 59 |
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| 60 | typedef enum {
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| 61 | FAT_DENTRY_SKIP,
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| 62 | FAT_DENTRY_LAST,
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| 63 | FAT_DENTRY_FREE,
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| 64 | FAT_DENTRY_VALID
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| 65 | } fat_dentry_clsf_t;
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| 66 |
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| 67 | typedef struct {
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| 68 | uint8_t name[8];
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| 69 | uint8_t ext[3];
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| 70 | uint8_t attr;
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| 71 | uint8_t lcase;
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| 72 | uint8_t ctime_fine;
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| 73 | uint16_t ctime;
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| 74 | uint16_t cdate;
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| 75 | uint16_t adate;
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| 76 | union {
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| 77 | uint16_t eaidx; /* FAT12/FAT16 */
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| 78 | uint16_t firstc_hi; /* FAT32 */
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| 79 | } __attribute__ ((packed));
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| 80 | uint16_t mtime;
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| 81 | uint16_t mdate;
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| 82 | union {
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| 83 | uint16_t firstc; /* FAT12/FAT16 */
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| 84 | uint16_t firstc_lo; /* FAT32 */
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| 85 | } __attribute__ ((packed));
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| 86 | uint32_t size;
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| 87 | } __attribute__ ((packed)) fat_dentry_t;
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| 88 |
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| 89 | extern int fat_dentry_namecmp(char *, const char *);
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| 90 | extern bool fat_dentry_name_verify(const char *);
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| 91 | extern void fat_dentry_name_get(const fat_dentry_t *, char *);
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| 92 | extern void fat_dentry_name_set(fat_dentry_t *, const char *);
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| 93 | extern fat_dentry_clsf_t fat_classify_dentry(const fat_dentry_t *);
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| 94 |
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| 95 | #endif
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| 96 |
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| 97 | /**
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| 98 | * @}
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| 99 | */
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