Constants/Data Structures/Prototypes on a Volume with FAT Filesystem. More...

#include <sys/param.h>
#include <sys/endian.h>
#include <string.h>
#include <rtems/seterr.h>
#include <errno.h>
#include <rtems/bdbuf.h>

Data Structures
struct	fat_vol_s
struct	fat_cache_s
struct	fat_fs_info_s
struct	fat_pos_s
struct	fat_dir_pos_s

Macros
#define	RC_OK 0
#define	CF_LE_W(v)
#define	CF_LE_L(v)
#define	CT_LE_W(v)
#define	CT_LE_L(v)
#define	FAT_HASH_SIZE 2
#define	FAT_HASH_MODULE FAT_HASH_SIZE
#define	FAT_SECTOR512_SIZE 512
#define	FAT_SECTOR512_BITS 9
#define	FAT_FAT12_MAX_CLN 4085
#define	FAT_FAT16_MAX_CLN 65525
#define	FAT_FAT12 0x01
#define	FAT_FAT16 0x02
#define	FAT_FAT32 0x04
#define	FAT_UNDEFINED_VALUE (uint32_t)0xFFFFFFFF
#define	FAT_FAT12_EOC 0x0FF8
#define	FAT_FAT16_EOC 0xFFF8
#define	FAT_FAT32_EOC (uint32_t)0x0FFFFFF8
#define	FAT_FAT12_FREE 0x0000
#define	FAT_FAT16_FREE 0x0000
#define	FAT_FAT32_FREE 0x00000000
#define	FAT_GENFAT_EOC (uint32_t)0xFFFFFFFF
#define	FAT_GENFAT_FREE (uint32_t)0x00000000
#define	FAT_FAT12_SHIFT 0x04
#define	FAT_FAT12_MASK 0x00000FFF
#define	FAT_FAT16_MASK 0x0000FFFF
#define	FAT_FAT32_MASK (uint32_t)0x0FFFFFFF
#define	FAT_MAX_BPB_SIZE 90
#define	FAT_TOTAL_MBR_SIZE 512
#define	FAT_USEFUL_INFO_SIZE 12
#define	FAT_GET_ADDR(x, ofs)
#define	FAT_GET_VAL8(x, ofs)
#define	FAT_GET_VAL16(x, ofs)
#define	FAT_GET_VAL32(x, ofs)
#define	FAT_SET_VAL8(x, ofs, val)
#define	FAT_SET_VAL16(x, ofs, val)
#define	FAT_SET_VAL32(x, ofs, val)
#define	FAT_GET_BR_JMPBOOT(x)
#define	FAT_SET_BR_JMPBOOT(x, val)
#define	FAT_GET_ADDR_BR_OEMNAME(x)
#define	FAT_BR_OEMNAME_SIZE (8)
#define	FAT_GET_BR_BYTES_PER_SECTOR(x)
#define	FAT_SET_BR_BYTES_PER_SECTOR(x, val)
#define	FAT_GET_BR_SECTORS_PER_CLUSTER(x)
#define	FAT_SET_BR_SECTORS_PER_CLUSTER(x, val)
#define	FAT_GET_BR_RESERVED_SECTORS_NUM(x)
#define	FAT_SET_BR_RESERVED_SECTORS_NUM(x, val)
#define	FAT_GET_BR_FAT_NUM(x)
#define	FAT_SET_BR_FAT_NUM(x, val)
#define	FAT_GET_BR_FILES_PER_ROOT_DIR(x)
#define	FAT_SET_BR_FILES_PER_ROOT_DIR(x, val)
#define	FAT_GET_BR_TOTAL_SECTORS_NUM16(x)
#define	FAT_SET_BR_TOTAL_SECTORS_NUM16(x, val)
#define	FAT_GET_BR_MEDIA(x)
#define	FAT_SET_BR_MEDIA(x, val)
#define	FAT_GET_BR_SECTORS_PER_FAT(x)
#define	FAT_SET_BR_SECTORS_PER_FAT(x, val)
#define	FAT_GET_BR_SECTORS_PER_TRACK(x)
#define	FAT_SET_BR_SECTORS_PER_TRACK(x, val)
#define	FAT_GET_BR_NUMBER_OF_HEADS(x)
#define	FAT_SET_BR_NUMBER_OF_HEADS(x, val)
#define	FAT_GET_BR_HIDDEN_SECTORS(x)
#define	FAT_SET_BR_HIDDEN_SECTORS(x, val)
#define	FAT_GET_BR_TOTAL_SECTORS_NUM32(x)
#define	FAT_SET_BR_TOTAL_SECTORS_NUM32(x, val)
#define	FAT_GET_BR_DRVNUM(x)
#define	FAT_SET_BR_DRVNUM(x, val)
#define	FAT_GET_BR_RSVD1(x)
#define	FAT_SET_BR_RSVD1(x, val)
#define	FAT_GET_BR_BOOTSIG(x)
#define	FAT_SET_BR_BOOTSIG(x, val)
#define	FAT_BR_BOOTSIG_VAL (0x29)
#define	FAT_GET_BR_VOLID(x)
#define	FAT_SET_BR_VOLID(x, val)
#define	FAT_GET_ADDR_BR_VOLLAB(x)
#define	FAT_BR_VOLLAB_SIZE (11)
#define	FAT_GET_ADDR_BR_FILSYSTYPE(x)
#define	FAT_BR_FILSYSTYPE_SIZE (8)
#define	FAT_GET_BR_SECTORS_PER_FAT32(x)
#define	FAT_SET_BR_SECTORS_PER_FAT32(x, val)
#define	FAT_GET_BR_EXT_FLAGS(x)
#define	FAT_SET_BR_EXT_FLAGS(x, val)
#define	FAT_GET_BR_FSVER(x)
#define	FAT_SET_BR_FSVER(x, val)
#define	FAT_GET_BR_FAT32_ROOT_CLUSTER(x)
#define	FAT_SET_BR_FAT32_ROOT_CLUSTER(x, val)
#define	FAT_GET_BR_FAT32_FS_INFO_SECTOR(x)
#define	FAT_SET_BR_FAT32_FS_INFO_SECTOR(x, val)
#define	FAT_GET_BR_FAT32_BK_BOOT_SECTOR(x)
#define	FAT_SET_BR_FAT32_BK_BOOT_SECTOR(x, val)
#define	FAT_GET_ADDR_BR_FAT32_RESERVED(x)
#define	FAT_BR_FAT32_RESERVED_SIZE (12)
#define	FAT_GET_BR_FAT32_DRVNUM(x)
#define	FAT_SET_BR_FAT32_DRVNUM(x, val)
#define	FAT_GET_BR_FAT32_RSVD1(x)
#define	FAT_SET_BR_FAT32_RSVD1(x, val)
#define	FAT_GET_BR_FAT32_BOOTSIG(x)
#define	FAT_SET_BR_FAT32_BOOTSIG(x, val)
#define	FAT_BR_FAT32_BOOTSIG_VAL (0x29)
#define	FAT_GET_BR_FAT32_VOLID(x)
#define	FAT_SET_BR_FAT32_VOLID(x, val)
#define	FAT_GET_ADDR_BR_FAT32_VOLLAB(x)
#define	FAT_BR_FAT32_VOLLAB_SIZE (11)
#define	FAT_GET_ADDR_BR_FAT32_FILSYSTYPE(x)
#define	FAT_BR_FAT32_FILSYSTYPE_SIZE (8)
#define	FAT_GET_BR_SIGNATURE(x)
#define	FAT_SET_BR_SIGNATURE(x, val)
#define	FAT_BR_SIGNATURE_VAL (0xAA55)
#define	FAT_GET_FSINFO_LEAD_SIGNATURE(x)
#define	FAT_SET_FSINFO_LEAD_SIGNATURE(x, val)
#define	FAT_FSINFO_LEAD_SIGNATURE_VALUE (0x41615252)
#define	FAT_GET_FSINFO_STRUC_SIGNATURE(x)
#define	FAT_SET_FSINFO_STRUC_SIGNATURE(x, val)
#define	FAT_FSINFO_STRUC_SIGNATURE_VALUE (0x61417272)
#define	FAT_GET_FSINFO_TRAIL_SIGNATURE(x)
#define	FAT_SET_FSINFO_TRAIL_SIGNATURE(x, val)
#define	FAT_FSINFO_TRAIL_SIGNATURE_VALUE (0xAA550000)
#define	FAT_GET_FSINFO_FREE_CLUSTER_COUNT(x)
#define	FAT_SET_FSINFO_FREE_CLUSTER_COUNT(x, val)
#define	FAT_GET_FSINFO_NEXT_FREE_CLUSTER(x)
#define	FAT_SET_FSINFO_NEXT_FREE_CLUSTER(x, val)
#define	FAT_FSI_INFO 484
#define	FAT_FSINFO_STRUCT_OFFSET 488
#define	FAT_FSINFO_FREE_CLUSTER_COUNT_OFFSET (FAT_FSINFO_STRUCT_OFFSET+0)
#define	FAT_FSINFO_NEXT_FREE_CLUSTER_OFFSET (FAT_FSINFO_STRUCT_OFFSET+4)
#define	FAT_RSRVD_CLN 0x02
#define	FAT_FSI_LEADSIG_SIZE 0x04
#define	FAT_TOTAL_FSINFO_SIZE 512
#define	MS_BYTES_PER_CLUSTER_LIMIT 0x10000
#define	MS_BYTES_PER_CLUSTER_LIMIT_FAT12 0x1000
#define	FAT_BR_EXT_FLAGS_MIRROR 0x0080
#define	FAT_BR_EXT_FLAGS_FAT_NUM 0x000F
#define	FAT_BR_MEDIA_FIXED 0xf8
#define	FAT_DIRENTRY_SIZE 32
#define	FAT_DIRENTRIES_PER_SEC512 16
#define	FAT_FILE_SHORT_NAME (0xffffffff)
#define	FAT_FAT_OFFSET(fat_type, cln)
#define	FAT_CLUSTER_IS_ODD(n)
#define	FAT12_SHIFT 0x4
#define	FAT_UINO_POOL_INIT_SIZE 0x100
#define	FAT_CACHE_EMPTY 0x0
#define	FAT_CACHE_ACTUAL 0x1
#define	FAT_OP_TYPE_READ 0x1
#define	FAT_OP_TYPE_GET 0x2

Typedefs
typedef struct fat_vol_s	fat_vol_t
typedef struct fat_cache_s	fat_cache_t
typedef struct fat_fs_info_s	fat_fs_info_t
typedef struct fat_pos_s	fat_pos_t
typedef struct fat_dir_pos_s	fat_dir_pos_t

Functions
int	fat_buf_access (fat_fs_info_t fs_info, uint32_t sec_num, int op_type, uint8_t *sec_buf)
int	fat_buf_release (fat_fs_info_t *fs_info)
ssize_t	_fat_block_read (fat_fs_info_t fs_info, uint32_t start, uint32_t offset, uint32_t count, void buff)
void	fat_block_peek (fat_fs_info_t *fs_info, const uint32_t blk, const uint32_t blk_cnt)
ssize_t	fat_cluster_write (fat_fs_info_t fs_info, uint32_t start_cln, uint32_t offset, uint32_t count, const void buff)
ssize_t	fat_sector_write (fat_fs_info_t fs_info, uint32_t start, uint32_t offset, uint32_t count, const void buff)
ssize_t	fat_cluster_set (fat_fs_info_t *fs_info, uint32_t start, uint32_t offset, uint32_t count, uint8_t pattern)
int	fat_init_volume_info (fat_fs_info_t fs_info, const char device)
int	fat_init_clusters_chain (fat_fs_info_t *fs_info, uint32_t start_cln)
int	fat_shutdown_drive (fat_fs_info_t *fs_info)
uint32_t	fat_get_unique_ino (fat_fs_info_t *fs_info)
bool	fat_ino_is_unique (fat_fs_info_t *fs_info, uint32_t ino)
void	fat_free_unique_ino (fat_fs_info_t *fs_info, uint32_t ino)
int	fat_sync (fat_fs_info_t *fs_info)

Detailed Description

Constants/Data Structures/Prototypes on a Volume with FAT Filesystem.

Constants/Data Structures/Prototypes for Low-Level Operations on a Volume with FAT Filesystem

Data Structures

Macros

Typedefs

Functions

Detailed Description