| 40,6 → 40,77 |
|---|
| |
| #define dprintf(...) printf(__VA_ARGS__) |
| |
| typedef struct { |
| uint8_t ji[3]; /**< Jump instruction. */ |
| uint8_t oem_name[8]; |
| /* BIOS Parameter Block */ |
| uint16_t bps; /**< Bytes per sector. */ |
| uint8_t spc; /**< Sectors per cluster. */ |
| uint16_t rsc; /**< Reserved sector count. */ |
| uint8_t fatcnt; /**< Number of FATs. */ |
| uint16_t root_ent_max; /**< Maximum number of root directory |
| entries. */ |
| uint16_t totsec; /**< Total sectors. */ |
| uint8_t mdesc; /**< Media descriptor. */ |
| uint16_t sec_per_fat; /**< Sectors per FAT12/FAT16. */ |
| uint16_t sec_per_track; /**< Sectors per track. */ |
| uint16_t headcnt; /**< Number of heads. */ |
| uint32_t hidden_sec; /**< Hidden sectors. */ |
| uint32_t total_sec; /**< Total sectors. */ |
| |
| union { |
| struct { |
| /* FAT12/FAT16 only: Extended BIOS Parameter Block */ |
| /** Physical drive number. */ |
| uint8_t pdn; |
| uint8_t reserved; |
| /** Extended boot signature. */ |
| uint8_t ebs; |
| /** Serial number. */ |
| uint32_t id; |
| /** Volume label. */ |
| uint8_t label[11]; |
| /** FAT type. */ |
| uint8_t type[8]; |
| /** Boot code. */ |
| uint8_t boot_code[448]; |
| /** Boot sector signature. */ |
| uint16_t signature; |
| } __attribute__ ((packed)); |
| struct { |
| /* FAT32 only */ |
| /** Sectors per FAT. */ |
| uint32_t sectors_per_fat; |
| /** FAT flags. */ |
| uint16_t flags; |
| /** Version. */ |
| uint16_t version; |
| /** Cluster number of root directory. */ |
| uint32_t root_cluster; |
| /** Sector number of file system information sector. */ |
| uint16_t fsinfo_sec; |
| /** Sector number of boot sector copy. */ |
| uint16_t bscopy_sec; |
| uint8_t reserved1[12]; |
| /** Physical drive number. */ |
| uint8_t pdn; |
| uint8_t reserved2; |
| /** Extended boot signature. */ |
| uint8_t ebs; |
| /** Serial number. */ |
| uint32_t id; |
| /** Volume label. */ |
| uint8_t label; |
| /** FAT type. */ |
| uint8_t type[8]; |
| /** Boot code. */ |
| uint8_t boot_code[420]; |
| /** Signature. */ |
| uint16_t signature; |
| } __attribute__ ((packed)); |
| }; |
| } fat_bs_t __attribute__ ((packed)); |
| |
| extern uint8_t *plb_ro; |
| |
| extern int block_read(int, unsigned long, void *); |