diff options
Diffstat (limited to 'contrib/syslinux/syslinux-4.03/core/fs/fat/fat_fs.h')
| -rw-r--r-- | contrib/syslinux/syslinux-4.03/core/fs/fat/fat_fs.h | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/contrib/syslinux/syslinux-4.03/core/fs/fat/fat_fs.h b/contrib/syslinux/syslinux-4.03/core/fs/fat/fat_fs.h deleted file mode 100644 index 7ea3db8..0000000 --- a/contrib/syslinux/syslinux-4.03/core/fs/fat/fat_fs.h +++ /dev/null @@ -1,158 +0,0 @@ -#ifndef FAT_FS_H -#define FAT_FS_H - -#include <stdint.h> - -#define FAT_DIR_ENTRY_SIZE 32 -#define DIRENT_SHIFT 5 - -#define FAT_ATTR_READ_ONLY 0x01 -#define FAT_ATTR_HIDDEN 0x02 -#define FAT_ATTR_SYSTEM 0x04 -#define FAT_ATTR_VOLUME_ID 0x08 -#define FAT_ATTR_DIRECTORY 0x10 -#define FAT_ATTR_ARCHIVE 0x20 - -#define FAT_MAXFILE 256 - -#define FAT_ATTR_LONG_NAME (FAT_ATTR_READ_ONLY \ - | FAT_ATTR_HIDDEN \ - | FAT_ATTR_SYSTEM \ - | FAT_ATTR_VOLUME_ID) - -#define FAT_ATTR_VALID (FAT_ATTR_READ_ONLY \ - | FAT_ATTR_HIDDEN \ - | FAT_ATTR_SYSTEM \ - | FAT_ATTR_DIRECTORY \ - | FAT_ATTR_ARCHIVE) - -enum fat_type{ FAT12, FAT16, FAT32 }; - -/* - * The fat file system structures - */ - -struct fat_bpb { - uint8_t jmp_boot[3]; - uint8_t oem_name[8]; - uint16_t sector_size; - uint8_t bxSecPerClust; - uint16_t bxResSectors; - uint8_t bxFATs; - uint16_t bxRootDirEnts; - uint16_t bxSectors; - uint8_t media; - uint16_t bxFATsecs; - uint16_t sectors_per_track; - uint16_t num_heads; - uint32_t num_hidden_sectors; - uint32_t bsHugeSectors; - - union { - struct { - uint8_t num_ph_drive; - uint8_t reserved; - uint8_t boot_sig; - uint32_t num_serial; - uint8_t label[11]; - uint8_t fstype[8]; - } __attribute__ ((packed)) fat12_16; - - struct { - uint32_t bxFATsecs_32; - uint16_t extended_flags; - uint16_t fs_version; - uint32_t root_cluster; - uint16_t fs_info; - uint16_t backup_boot_sector; - uint8_t reserved[12]; - uint8_t num_ph_drive; - uint8_t reserved1; - uint8_t boot_sig; - uint32_t num_serial; - uint8_t label[11]; - uint8_t fstype[8]; - } __attribute__ ((packed)) fat32; - - } __attribute__ ((packed)); - - uint8_t pad[422]; /* padding to 512 Bytes (one sector) */ - -} __attribute__ ((packed)); - -/* - * The fat file system info in memory - */ -struct fat_sb_info { - sector_t fat; /* The FAT region */ - sector_t root; /* The root dir region */ - sector_t data; /* The data region */ - - uint32_t clusters; /* Total number of clusters */ - uint32_t root_cluster; /* Cluster number for (FAT32) root dir */ - int root_size; /* The root dir size in sectors */ - - int clust_shift; /* based on sectors */ - int clust_byte_shift; /* based on bytes */ - int clust_mask; /* sectors per cluster mask */ - int clust_size; - - int fat_type; -} __attribute__ ((packed)); - -struct fat_dir_entry { - char name[11]; - uint8_t attr; - uint8_t lcase; - uint8_t c_time_tenth; - uint16_t c_time; - uint16_t c_date; - uint16_t a_date; - uint16_t first_cluster_high; - uint16_t w_time; - uint16_t w_date; - uint16_t first_cluster_low; - uint32_t file_size; -} __attribute__ ((packed)); - -#define LCASE_BASE 8 /* basename is lower case */ -#define LCASE_EXT 16 /* extension is lower case */ - -struct fat_long_name_entry { - uint8_t id; - uint16_t name1[5]; - uint8_t attr; - uint8_t reserved; - uint8_t checksum; - uint16_t name2[6]; - uint16_t first_cluster; - uint16_t name3[2]; -} __attribute__ ((packed)); - -static inline struct fat_sb_info *FAT_SB(struct fs_info *fs) -{ - return fs->fs_info; -} - -/* - * Count the root dir size in sectors - */ -static inline int root_dir_size(struct fs_info *fs, struct fat_bpb *fat) -{ - return (fat->bxRootDirEnts + SECTOR_SIZE(fs)/32 - 1) - >> (SECTOR_SHIFT(fs) - 5); -} - -/* - * FAT private inode information - */ -struct fat_pvt_inode { - uint32_t start_cluster; /* Starting cluster address */ - sector_t start; /* Starting sector */ - sector_t offset; /* Current sector offset */ - sector_t here; /* Sector corresponding to offset */ -}; - -#define PVT(i) ((struct fat_pvt_inode *)((i)->pvt)) - -#endif /* fat_fs.h */ |