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Diffstat (limited to 'libraries/Robot_Control/FatStructs.h')
| -rw-r--r-- | libraries/Robot_Control/FatStructs.h | 418 |
1 files changed, 0 insertions, 418 deletions
diff --git a/libraries/Robot_Control/FatStructs.h b/libraries/Robot_Control/FatStructs.h deleted file mode 100644 index 431bf30..0000000 --- a/libraries/Robot_Control/FatStructs.h +++ /dev/null @@ -1,418 +0,0 @@ -/* Arduino Fat16 Library - * Copyright (C) 2009 by William Greiman - * - * This file is part of the Arduino Fat16 Library - * - * This Library is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This Library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with the Arduino Fat16 Library. If not, see - * <http://www.gnu.org/licenses/>. - */ -#ifndef FatStructs_h -#define FatStructs_h -/** - * \file - * FAT file structures - */ -/* - * mostly from Microsoft document fatgen103.doc - * http://www.microsoft.com/whdc/system/platform/firmware/fatgen.mspx - */ -//------------------------------------------------------------------------------ -/** Value for byte 510 of boot block or MBR */ -uint8_t const BOOTSIG0 = 0X55; -/** Value for byte 511 of boot block or MBR */ -uint8_t const BOOTSIG1 = 0XAA; -//------------------------------------------------------------------------------ -/** - * \struct partitionTable - * \brief MBR partition table entry - * - * A partition table entry for a MBR formatted storage device. - * The MBR partition table has four entries. - */ -struct partitionTable { - /** - * Boot Indicator . Indicates whether the volume is the active - * partition. Legal values include: 0X00. Do not use for booting. - * 0X80 Active partition. - */ - uint8_t boot; - /** - * Head part of Cylinder-head-sector address of the first block in - * the partition. Legal values are 0-255. Only used in old PC BIOS. - */ - uint8_t beginHead; - /** - * Sector part of Cylinder-head-sector address of the first block in - * the partition. Legal values are 1-63. Only used in old PC BIOS. - */ - unsigned beginSector : 6; - /** High bits cylinder for first block in partition. */ - unsigned beginCylinderHigh : 2; - /** - * Combine beginCylinderLow with beginCylinderHigh. Legal values - * are 0-1023. Only used in old PC BIOS. - */ - uint8_t beginCylinderLow; - /** - * Partition type. See defines that begin with PART_TYPE_ for - * some Microsoft partition types. - */ - uint8_t type; - /** - * head part of cylinder-head-sector address of the last sector in the - * partition. Legal values are 0-255. Only used in old PC BIOS. - */ - uint8_t endHead; - /** - * Sector part of cylinder-head-sector address of the last sector in - * the partition. Legal values are 1-63. Only used in old PC BIOS. - */ - unsigned endSector : 6; - /** High bits of end cylinder */ - unsigned endCylinderHigh : 2; - /** - * Combine endCylinderLow with endCylinderHigh. Legal values - * are 0-1023. Only used in old PC BIOS. - */ - uint8_t endCylinderLow; - /** Logical block address of the first block in the partition. */ - uint32_t firstSector; - /** Length of the partition, in blocks. */ - uint32_t totalSectors; -}; -/** Type name for partitionTable */ -typedef struct partitionTable part_t; -//------------------------------------------------------------------------------ -/** - * \struct masterBootRecord - * - * \brief Master Boot Record - * - * The first block of a storage device that is formatted with a MBR. - */ -struct masterBootRecord { - /** Code Area for master boot program. */ - uint8_t codeArea[440]; - /** Optional WindowsNT disk signature. May contain more boot code. */ - uint32_t diskSignature; - /** Usually zero but may be more boot code. */ - uint16_t usuallyZero; - /** Partition tables. */ - part_t part[4]; - /** First MBR signature byte. Must be 0X55 */ - uint8_t mbrSig0; - /** Second MBR signature byte. Must be 0XAA */ - uint8_t mbrSig1; -}; -/** Type name for masterBootRecord */ -typedef struct masterBootRecord mbr_t; -//------------------------------------------------------------------------------ -/** - * \struct biosParmBlock - * - * \brief BIOS parameter block - * - * The BIOS parameter block describes the physical layout of a FAT volume. - */ -struct biosParmBlock { - /** - * Count of bytes per sector. This value may take on only the - * following values: 512, 1024, 2048 or 4096 - */ - uint16_t bytesPerSector; - /** - * Number of sectors per allocation unit. This value must be a - * power of 2 that is greater than 0. The legal values are - * 1, 2, 4, 8, 16, 32, 64, and 128. - */ - uint8_t sectorsPerCluster; - /** - * Number of sectors before the first FAT. - * This value must not be zero. - */ - uint16_t reservedSectorCount; - /** The count of FAT data structures on the volume. This field should - * always contain the value 2 for any FAT volume of any type. - */ - uint8_t fatCount; - /** - * For FAT12 and FAT16 volumes, this field contains the count of - * 32-byte directory entries in the root directory. For FAT32 volumes, - * this field must be set to 0. For FAT12 and FAT16 volumes, this - * value should always specify a count that when multiplied by 32 - * results in a multiple of bytesPerSector. FAT16 volumes should - * use the value 512. - */ - uint16_t rootDirEntryCount; - /** - * This field is the old 16-bit total count of sectors on the volume. - * This count includes the count of all sectors in all four regions - * of the volume. This field can be 0; if it is 0, then totalSectors32 - * must be non-zero. For FAT32 volumes, this field must be 0. For - * FAT12 and FAT16 volumes, this field contains the sector count, and - * totalSectors32 is 0 if the total sector count fits - * (is less than 0x10000). - */ - uint16_t totalSectors16; - /** - * This dates back to the old MS-DOS 1.x media determination and is - * no longer usually used for anything. 0xF8 is the standard value - * for fixed (non-removable) media. For removable media, 0xF0 is - * frequently used. Legal values are 0xF0 or 0xF8-0xFF. - */ - uint8_t mediaType; - /** - * Count of sectors occupied by one FAT on FAT12/FAT16 volumes. - * On FAT32 volumes this field must be 0, and sectorsPerFat32 - * contains the FAT size count. - */ - uint16_t sectorsPerFat16; - /** Sectors per track for interrupt 0x13. Not used otherwise. */ - uint16_t sectorsPerTrtack; - /** Number of heads for interrupt 0x13. Not used otherwise. */ - uint16_t headCount; - /** - * Count of hidden sectors preceding the partition that contains this - * FAT volume. This field is generally only relevant for media - * visible on interrupt 0x13. - */ - uint32_t hidddenSectors; - /** - * This field is the new 32-bit total count of sectors on the volume. - * This count includes the count of all sectors in all four regions - * of the volume. This field can be 0; if it is 0, then - * totalSectors16 must be non-zero. - */ - uint32_t totalSectors32; - /** - * Count of sectors occupied by one FAT on FAT32 volumes. - */ - uint32_t sectorsPerFat32; - /** - * This field is only defined for FAT32 media and does not exist on - * FAT12 and FAT16 media. - * Bits 0-3 -- Zero-based number of active FAT. - * Only valid if mirroring is disabled. - * Bits 4-6 -- Reserved. - * Bit 7 -- 0 means the FAT is mirrored at runtime into all FATs. - * -- 1 means only one FAT is active; it is the one referenced in bits 0-3. - * Bits 8-15 -- Reserved. - */ - uint16_t fat32Flags; - /** - * FAT32 version. High byte is major revision number. - * Low byte is minor revision number. Only 0.0 define. - */ - uint16_t fat32Version; - /** - * Cluster number of the first cluster of the root directory for FAT32. - * This usually 2 but not required to be 2. - */ - uint32_t fat32RootCluster; - /** - * Sector number of FSINFO structure in the reserved area of the - * FAT32 volume. Usually 1. - */ - uint16_t fat32FSInfo; - /** - * If non-zero, indicates the sector number in the reserved area - * of the volume of a copy of the boot record. Usually 6. - * No value other than 6 is recommended. - */ - uint16_t fat32BackBootBlock; - /** - * Reserved for future expansion. Code that formats FAT32 volumes - * should always set all of the bytes of this field to 0. - */ - uint8_t fat32Reserved[12]; -}; -/** Type name for biosParmBlock */ -typedef struct biosParmBlock bpb_t; -//------------------------------------------------------------------------------ -/** - * \struct fat32BootSector - * - * \brief Boot sector for a FAT16 or FAT32 volume. - * - */ -struct fat32BootSector { - /** X86 jmp to boot program */ - uint8_t jmpToBootCode[3]; - /** informational only - don't depend on it */ - char oemName[8]; - /** BIOS Parameter Block */ - bpb_t bpb; - /** for int0x13 use value 0X80 for hard drive */ - uint8_t driveNumber; - /** used by Windows NT - should be zero for FAT */ - uint8_t reserved1; - /** 0X29 if next three fields are valid */ - uint8_t bootSignature; - /** usually generated by combining date and time */ - uint32_t volumeSerialNumber; - /** should match volume label in root dir */ - char volumeLabel[11]; - /** informational only - don't depend on it */ - char fileSystemType[8]; - /** X86 boot code */ - uint8_t bootCode[420]; - /** must be 0X55 */ - uint8_t bootSectorSig0; - /** must be 0XAA */ - uint8_t bootSectorSig1; -}; -//------------------------------------------------------------------------------ -// End Of Chain values for FAT entries -/** FAT16 end of chain value used by Microsoft. */ -uint16_t const FAT16EOC = 0XFFFF; -/** Minimum value for FAT16 EOC. Use to test for EOC. */ -uint16_t const FAT16EOC_MIN = 0XFFF8; -/** FAT32 end of chain value used by Microsoft. */ -uint32_t const FAT32EOC = 0X0FFFFFFF; -/** Minimum value for FAT32 EOC. Use to test for EOC. */ -uint32_t const FAT32EOC_MIN = 0X0FFFFFF8; -/** Mask a for FAT32 entry. Entries are 28 bits. */ -uint32_t const FAT32MASK = 0X0FFFFFFF; - -/** Type name for fat32BootSector */ -typedef struct fat32BootSector fbs_t; -//------------------------------------------------------------------------------ -/** - * \struct directoryEntry - * \brief FAT short directory entry - * - * Short means short 8.3 name, not the entry size. - * - * Date Format. A FAT directory entry date stamp is a 16-bit field that is - * basically a date relative to the MS-DOS epoch of 01/01/1980. Here is the - * format (bit 0 is the LSB of the 16-bit word, bit 15 is the MSB of the - * 16-bit word): - * - * Bits 9-15: Count of years from 1980, valid value range 0-127 - * inclusive (1980-2107). - * - * Bits 5-8: Month of year, 1 = January, valid value range 1-12 inclusive. - * - * Bits 0-4: Day of month, valid value range 1-31 inclusive. - * - * Time Format. A FAT directory entry time stamp is a 16-bit field that has - * a granularity of 2 seconds. Here is the format (bit 0 is the LSB of the - * 16-bit word, bit 15 is the MSB of the 16-bit word). - * - * Bits 11-15: Hours, valid value range 0-23 inclusive. - * - * Bits 5-10: Minutes, valid value range 0-59 inclusive. - * - * Bits 0-4: 2-second count, valid value range 0-29 inclusive (0 - 58 seconds). - * - * The valid time range is from Midnight 00:00:00 to 23:59:58. - */ -struct directoryEntry { - /** - * Short 8.3 name. - * The first eight bytes contain the file name with blank fill. - * The last three bytes contain the file extension with blank fill. - */ - uint8_t name[11]; - /** Entry attributes. - * - * The upper two bits of the attribute byte are reserved and should - * always be set to 0 when a file is created and never modified or - * looked at after that. See defines that begin with DIR_ATT_. - */ - uint8_t attributes; - /** - * Reserved for use by Windows NT. Set value to 0 when a file is - * created and never modify or look at it after that. - */ - uint8_t reservedNT; - /** - * The granularity of the seconds part of creationTime is 2 seconds - * so this field is a count of tenths of a second and its valid - * value range is 0-199 inclusive. (WHG note - seems to be hundredths) - */ - uint8_t creationTimeTenths; - /** Time file was created. */ - uint16_t creationTime; - /** Date file was created. */ - uint16_t creationDate; - /** - * Last access date. Note that there is no last access time, only - * a date. This is the date of last read or write. In the case of - * a write, this should be set to the same date as lastWriteDate. - */ - uint16_t lastAccessDate; - /** - * High word of this entry's first cluster number (always 0 for a - * FAT12 or FAT16 volume). - */ - uint16_t firstClusterHigh; - /** Time of last write. File creation is considered a write. */ - uint16_t lastWriteTime; - /** Date of last write. File creation is considered a write. */ - uint16_t lastWriteDate; - /** Low word of this entry's first cluster number. */ - uint16_t firstClusterLow; - /** 32-bit unsigned holding this file's size in bytes. */ - uint32_t fileSize; -}; -//------------------------------------------------------------------------------ -// Definitions for directory entries -// -/** Type name for directoryEntry */ -typedef struct directoryEntry dir_t; -/** escape for name[0] = 0XE5 */ -uint8_t const DIR_NAME_0XE5 = 0X05; -/** name[0] value for entry that is free after being "deleted" */ -uint8_t const DIR_NAME_DELETED = 0XE5; -/** name[0] value for entry that is free and no allocated entries follow */ -uint8_t const DIR_NAME_FREE = 0X00; -/** file is read-only */ -uint8_t const DIR_ATT_READ_ONLY = 0X01; -/** File should hidden in directory listings */ -uint8_t const DIR_ATT_HIDDEN = 0X02; -/** Entry is for a system file */ -uint8_t const DIR_ATT_SYSTEM = 0X04; -/** Directory entry contains the volume label */ -uint8_t const DIR_ATT_VOLUME_ID = 0X08; -/** Entry is for a directory */ -uint8_t const DIR_ATT_DIRECTORY = 0X10; -/** Old DOS archive bit for backup support */ -uint8_t const DIR_ATT_ARCHIVE = 0X20; -/** Test value for long name entry. Test is - (d->attributes & DIR_ATT_LONG_NAME_MASK) == DIR_ATT_LONG_NAME. */ -uint8_t const DIR_ATT_LONG_NAME = 0X0F; -/** Test mask for long name entry */ -uint8_t const DIR_ATT_LONG_NAME_MASK = 0X3F; -/** defined attribute bits */ -uint8_t const DIR_ATT_DEFINED_BITS = 0X3F; -/** Directory entry is part of a long name */ -static inline uint8_t DIR_IS_LONG_NAME(const dir_t* dir) { - return (dir->attributes & DIR_ATT_LONG_NAME_MASK) == DIR_ATT_LONG_NAME; -} -/** Mask for file/subdirectory tests */ -uint8_t const DIR_ATT_FILE_TYPE_MASK = (DIR_ATT_VOLUME_ID | DIR_ATT_DIRECTORY); -/** Directory entry is for a file */ -static inline uint8_t DIR_IS_FILE(const dir_t* dir) { - return (dir->attributes & DIR_ATT_FILE_TYPE_MASK) == 0; -} -/** Directory entry is for a subdirectory */ -static inline uint8_t DIR_IS_SUBDIR(const dir_t* dir) { - return (dir->attributes & DIR_ATT_FILE_TYPE_MASK) == DIR_ATT_DIRECTORY; -} -/** Directory entry is for a file or subdirectory */ -static inline uint8_t DIR_IS_FILE_OR_SUBDIR(const dir_t* dir) { - return (dir->attributes & DIR_ATT_VOLUME_ID) == 0; -} -#endif // FatStructs_h |