148 lines
4.0 KiB
C
148 lines
4.0 KiB
C
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#ifndef VIRTUAL_DISK_H
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#define VIRTUAL_DISK_H
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#include "system/includes.h"
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#define VIR_FILE_TYPE_MP3 1
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#define VIR_FILE_TYPE_WAV 2
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extern const struct device_operations virfat_flash_dev_ops;
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typedef enum {
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FS_FAT12 = 0x01,
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FS_FAT16 = 0x02,
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FS_FAT32 = 0x04,
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FS_EXFAT = 0x14,
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} FS_TYPE;
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typedef struct _virfat_flash_t {
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u32 fatbase;
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// u32 fatbase2;
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u16 fatsize;
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u32 dirbase;
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u32 database;
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u32 clustSize;
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u32 max_clust;
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u32 capacity;
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u8 csize;
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FS_TYPE fs_type;
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char re_devname[24];
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} virfat_flash_t;
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typedef struct _dir_entry {
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u8 name[12];
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u32 fileSize;
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} dir_entry_t;
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#if 0
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extern void virfat_flash_rand_file_size();
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extern void virtual_disk_reduce_file_size(tu8 file_num);
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extern void virtual_disk_remove_files(tu8 file_type);
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extern void virtual_disk_reduce_file_size(tu8 file_num);
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extern u8 virfat_flash_init(void *buf_512, void (*fun_read_file)(u32, u32, u8 *, u32));
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#endif
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#define MIN_FAT16 4086 /* Minimum number of clusters for FAT16 */
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#define MIN_FAT32 65526 /* Minimum number of clusters for FAT32 */
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#define AM_RDO 0x01 /* Read only */
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#define AM_HID 0x02 /* Hidden */
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#define AM_SYS 0x04 /* System */
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#define AM_VOL 0x08 /* Volume label */
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#define AM_LFN 0x0F /* LFN entry */
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#define AM_DIR 0x10 /* Directory */
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#define AM_ARC 0x20 /* Archive */
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#define AM_FCH 0x80 /* exFAT下,文件簇连续标志 */
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#define AM_FRG 0x40 /* exFAT下,文件簇BITMAP 有碎片 */
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#define AM_LFN0_START 0x1
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#define AM_LFN0_LEN 10
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#define AM_LFN1_START 0xE
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#define AM_LFN1_LEN 12
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#define AM_LFN2_START 0x1C
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#define AM_LFN2_LEN 4
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#define AM_LFN_LEN 26
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#define AM_EX_DIR_STRETCHED 0x08
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#define BS_jmpBoot 0
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#define BS_OEMName 3
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#define BPB_BytsPerSec_l 11
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#define BPB_BytsPerSec_h 12
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#define BPB_SecPerClus 13
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#define BPB_RsvdSecCnt 14
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#define BPB_NumFATs 16
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#define BPB_RootEntCnt 17
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#define BPB_TotSec16 19
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#define BPB_Media 21
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#define BPB_FATSz16 22
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#define BPB_SecPerTrk 24
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#define BPB_NumHeads 26
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#define BPB_HiddSec 28
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#define BPB_TotSec32 32
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#define BS_55AA 510
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#define BS_DrvNum 36
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#define BS_BootSig 38
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#define BS_VolID 39
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#define BS_VolLab 43
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#define BS_FilSysType 54
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#define BPB_FATSz32 36
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#define BPB_ExtFlags 40
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#define BPB_FSVer 42
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#define BPB_RootClus 44
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#define BPB_FSInfo 48
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#define BPB_BkBootSec 50
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#define BS_DrvNum32 64
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#define BS_BootSig32 66
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#define BS_VolID32 67
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#define BS_VolLab32 71
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#define BS_FilSysType32 82
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#define BS_FileSysTypeexFAT 5
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#define BPB_FatOffset 80
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#define BPB_FatLength 84
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#define BPB_ClusterHeapOffset 88
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#define BPB_ClusterCount 92
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#define BPB_FirstClusterOfRootDirectory 96
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#define BPB_VolumeFlags 106
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#define BPB_BytesPerSectorShift 108
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#define BPB_SectorsPerClusterShift 109
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#define BPB_NumberOfFats 110
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#define MBR_Table 446
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#define FSI_LeadSig 0 /* FSI: Leading signature (4) */
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#define FSI_StrucSig 484 /* FSI: Structure signature (4) */
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#define FSI_Free_Count 488 /* FSI: Number of free clusters (4) */
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#define FSI_Nxt_Free 492 /* FSI: Last allocated cluster (4) */
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///for FAT12/FAT16/FAT32
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#define DIR_Name 0 /* Short file name (11) */
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#define DIR_Attr 11 /* Attribute (1) */
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#define DIR_NTres 12 /* NT flag (1) */
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#define DIR_CrtTimeTenth 13 /* Created time sub-second (1) */
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#define DIR_CrtTime 14 /* Created time (2) */
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#define DIR_CrtDate 16 /* Created date (2) */
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#define DIR_LstAccDate 18 /* Last accessed date (2) */
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#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (2) */
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#define DIR_WrtTime 22 /* Modified time (2) */
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#define DIR_WrtDate 24 /* Modified date (2) */
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#define DIR_FstClusLO 26
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#define DIR_FileSize 28
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#define LDIR_Attr 11 /* LFN attribute (1) */
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#define LDIR_Type 12 /* LFN type (1) */
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#define LDIR_Chksum 13 /* Sum of corresponding SFN entry */
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////for exFAT
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#define DIR_FileChainFlags 1
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#define DIR_NameLen 3
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#define DIR_AttrexFAT 4
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#define DIR_FileSizeexFAT 8
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#define DIR_FstClustexFAT 20
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#define DIR_FileSize2exFAT 24
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#endif
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