109 lines
4.1 KiB
C
109 lines
4.1 KiB
C
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/*
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* FreeRTOS+FAT V2.3.3
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* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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*/
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#ifndef _FF_FATDEF_H_
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#define _FF_FATDEF_H_
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/*
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* This file defines offsets to various data for the FAT specification.
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*/
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/* MBR / PBR Offsets. */
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#define FF_FAT_BYTES_PER_SECTOR 0x00B
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#define FF_FAT_SECTORS_PER_CLUS 0x00D
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#define FF_FAT_RESERVED_SECTORS 0x00E
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#define FF_FAT_NUMBER_OF_FATS 0x010
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#define FF_FAT_ROOT_ENTRY_COUNT 0x011
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#define FF_FAT_16_TOTAL_SECTORS 0x013
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#define FF_FAT_MEDIA_TYPE 0x015
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#define FF_FAT_32_TOTAL_SECTORS 0x020
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#define FF_FAT_16_SECTORS_PER_FAT 0x016
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#define FF_FAT_32_SECTORS_PER_FAT 0x024
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#define FF_FAT_ROOT_DIR_CLUSTER 0x02C
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#define FF_FAT_EXT_BOOT_SIGNATURE 0x042
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#define FF_FAT_16_VOL_LABEL 0x02B
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#define FF_FAT_32_VOL_LABEL 0x047
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#define FF_FAT_PTBL 0x1BE
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#define FF_FAT_PTBL_LBA 0x008
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#define FF_FAT_PTBL_SECT_COUNT 0x00C
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#define FF_FAT_PTBL_ACTIVE 0x000
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#define FF_FAT_PTBL_ID 0x004
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#define FF_DOS_EXT_PART 0x05
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#define FF_LINUX_EXT_PART 0x85
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#define FF_WIN98_EXT_PART 0x0f
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#define FF_FAT_MBR_SIGNATURE 0x1FE
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#define FF_FAT_DELETED 0xE5
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/* Directory Entry Offsets. */
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#define FF_FAT_DIRENT_SHORTNAME 0x000
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#define FF_FAT_DIRENT_ATTRIB 0x00B
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#define FF_FAT_DIRENT_CREATE_TIME 0x00E /* Creation Time. */
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#define FF_FAT_DIRENT_CREATE_DATE 0x010 /* Creation Date. */
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#define FF_FAT_DIRENT_LASTACC_DATE 0x012 /* Date of Last Access. */
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#define FF_FAT_DIRENT_CLUS_HIGH 0x014
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#define FF_FAT_DIRENT_LASTMOD_TIME 0x016 /* Time of Last modification. */
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#define FF_FAT_DIRENT_LASTMOD_DATE 0x018 /* Date of Last modification. */
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#define FF_FAT_DIRENT_CLUS_LOW 0x01A
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#define FF_FAT_DIRENT_FILESIZE 0x01C
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#define FF_FAT_LFN_ORD 0x000
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#define FF_FAT_LFN_NAME_1 0x001
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#define FF_FAT_LFN_CHECKSUM 0x00D
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#define FF_FAT_LFN_NAME_2 0x00E
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#define FF_FAT_LFN_NAME_3 0x01C
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/* Dirent Attributes. */
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#define FF_FAT_ATTR_READONLY 0x01
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#define FF_FAT_ATTR_HIDDEN 0x02
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#define FF_FAT_ATTR_SYSTEM 0x04
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#define FF_FAT_ATTR_VOLID 0x08
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#define FF_FAT_ATTR_DIR 0x10
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#define FF_FAT_ATTR_ARCHIVE 0x20
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#define FF_FAT_ATTR_LFN 0x0F
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/**
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* -- Hein_Tibosch additions for mixed case in shortnames --
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*
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* Specifically, bit 4 means lowercase extension and bit 3 lowercase basename,
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* which allows for combinations such as "example.TXT" or "HELLO.txt" but not "Mixed.txt"
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*/
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#define FF_FAT_CASE_OFFS 0x0C /* After NT/XP : 2 case bits. */
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#define FF_FAT_CASE_ATTR_BASE 0x08
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#define FF_FAT_CASE_ATTR_EXT 0x10
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#if ( ffconfigLFN_SUPPORT != 0 ) && ( ffconfigINCLUDE_SHORT_NAME != 0 )
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#define FF_FAT_ATTR_IS_LFN 0x40 /* artificial attribute, for debugging only. */
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#endif
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#endif /* ifndef _FF_FATDEF_H_ */
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