mirror of https://github.com/parasyte/alt64
129 lines
2.5 KiB
C
129 lines
2.5 KiB
C
/*
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* File: fat.h
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* Author: krik
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*
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* Created on 22 Ìàé 2011 ã., 1:06
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*/
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#ifndef _FAT_H
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#define _FAT_H
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#include "types.h"
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#include "errors.h"
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#define FAT_MAX_DIR_SIZE 1024
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#define FAT_MAX_NAME_LEN 128
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#define FAT_MAX_NAME_LEN_S 256
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#define FAT_TYPE_16 1
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#define FAT_TYPE_32 2
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typedef struct {
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u8 name[FAT_MAX_NAME_LEN];
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u32 entry_cluster;
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u32 size;
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u32 hdr_sector;
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u16 hdr_idx;
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u16 fav_idx;
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u8 is_dir;
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} FatRecord;
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typedef struct {
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u8 name[8];
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u8 ext[3];
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u8 attrib;
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u8 x[8];
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u16 cluster_hi;
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u16 time;
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u16 date;
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u16 cluster_lo;
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u32 size;
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} FatRecordHdr;
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typedef struct {
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FatRecord * rec[FAT_MAX_DIR_SIZE];
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FatRecord * s_records[FAT_MAX_DIR_SIZE];
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u8 *path;
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u16 size;
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u32 entry_cluster;
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u32 entry_sector;
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u32 in_cluster_ptr;
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u32 current_cluster;
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u8 is_root;
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} Dir;
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typedef struct {
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u32 pbr_entry;
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u32 root_entry;
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u32 fat_entry;
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u32 data_entry;
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u8 type;
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u8 cluster_size;
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u32 loaded_sector;
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u32 cluster_byte_size;
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u32 sectors_per_fat;
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} Fat;
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typedef struct {
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u8 *table_buff;
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u8 *table_sector;
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u8 *data_sector;
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u32 data_sec_idx;
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u32 table_sec_idx;
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} FatCache;
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typedef struct {
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u32 sector;
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u32 cluster;
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u32 sec_available;
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u16 in_cluster_ptr;
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FatRecord rec;
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u8 mode;
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} File;
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extern Dir *dir;
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//extern Dir dir_o;
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extern File file;
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extern FatCache *fat_cache;
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//extern FatRecord rec_tmp;
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#define ED_ROOT "/ED64"
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#define ED_SAVE "/ED64/SDSAVE"
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#define ED_ROM_CFG "/ED64/SDSAVE/LAST.CRT"
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//#define ED_TEST_CFG "/MISC/test.dat"
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//#define ED_OPTIONS "/ED64/options.dat"
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//#define ED_FAVOR "/ED64/favor.dat"
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//#define ED_SAVE_DMP "/EDMD/sav-dmp.bin"
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#define FILE_MODE_RD 1
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#define FILE_MODE_WR 2
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u8 fatInit();
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u8 fatLoadDir(u32 cluster);
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u8 fatLoadDirByName(u8 *name);
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u8 fatWriteFile(void *src, u32 sectors);
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u8 fatReadFile(void *dst, u32 sectors);
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u8 fatReadPartialFile(void *dst, u32 sectors, int b_offset);
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u8 fatCreateRecord(u8 *name, u8 is_dir, u8 check_exist);
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u8 fatOpenFileByeName(u8 *name, u32 wr_sectors);
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u8 fatFindRecord(u8 *name, FatRecord *rec, u8 is_dir);
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u8 fatOpenFile(FatRecord *rec, u32 wr_sectors);
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u8 fatSkipSectors(u32 sectors);
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u8 fatCreateRecIfNotExist(u8 *name, u8 is_dir);
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u8 fatGetFullName(u8 *name, u32 dir_entry, u32 rec_entry);
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u8 fatOpenDirByName(u8 *name);
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void fatInitRam();
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u8 streq(u8 *str1, u8 *str2);
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u8 streql(u8 *str1, u8 *str2, u8 len);
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u8 slen(u8 *str);
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void fatSortRecords();
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#endif /* _FAT_H */
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