exfatfs.h

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#ifndef _PSP2KERN_INTERNAL_EXFATFS_H_
#define _PSP2KERN_INTERNAL_EXFATFS_H_
 
#include <psp2kern/types.h>
#include <psp2kern/kernel/threadmgr.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
/*
 * Added this header to vita-headers to facilitate updates without being spread out to other separate projects.
 */
 
/*
 * A mix of camelCase and snake_case is maintained to facilitate reverse engineering
 */
 
 
#define SCE_EXFATFS_MAX_FILE_SYSTEM (0xF)
#define SCE_EXFATFS_MAX_FNODE (0x1000)
 
#define SCE_EXFATFS_TYPE_FAT   (1)
#define SCE_EXFATFS_TYPE_EXFAT (2)
 
 
typedef struct _SceExfatfsDateTime { // size is 0xC-bytes
    SceUInt16 year;
    SceUInt16 month;
    SceUInt16 day;
    SceUInt16 hour;
    SceUInt16 minute;
    SceUInt16 second;
} SceExfatfsDateTime;
VITASDK_BUILD_ASSERT_EQ(0xC, SceExfatfsDateTime);
 
typedef struct SceExfatfsMbr { // size is 0x200-bytes
    char data[0x200];
} SceExfatfsMbr;
VITASDK_BUILD_ASSERT_EQ(0x200, SceExfatfsMbr);
 
typedef struct _SceExfatfsDrive { // size is 0x230-bytes
    SceUInt32 state;
    int unk_0x04[0x2F];
    const char *assignName;
    int unk_0xC4[0x47];
 
    // offset 0x1E0
    SceKernelFastMutex fastmutex;
    const struct SceVfsMount2 *VfsMount2;
    void *vp;
    void *unk_0x228;
    int unk_0x22C;
} SceExfatfsDrive;
VITASDK_BUILD_ASSERT_EQ(0x230, SceExfatfsDrive);
 
typedef struct _SceExfatfsFnode { // size is 0x290-bytes
    SceUInt16 FilePath[0x208 >> 1]; // in utf-16
    SceUInt16 *FileName;
    struct _SceExfatfsFileSystem *fileSystem;
    struct { // size is 0x40-bytes
        SceUInt16 st_mode;
        SceUInt16 st_type;
        SceUInt16 st_dev;
        SceUInt16 st_uid;
        SceOff Size;
        SceExfatfsDateTime ctime;
        SceExfatfsDateTime atime;
        SceExfatfsDateTime mtime;
        SceUInt32 StartCluster;
        SceUInt8 data_0x248;
        SceUInt8 data_0x249;
        SceUInt8 data_0x24A;
        SceUInt8 data_0x24B;
        int data_0x24C;
    } Stat;
 
    SceUInt32 DirCluster;
    int data_0x254;
    SceOff DirOffset;
 
    SceUInt32 DirOffClust;
    int data_0x264;
    SceSize dirSize;
    SceUInt8 dirGeneralSecondaryFlags;
    SceUInt8 data_0x26D;
    SceUInt8 data_0x26E;
    SceUInt8 data_0x26F;
 
    SceUInt16 refCount;
    SceUInt16 fdCount;
    int data_0x274;
    SceUInt32 cache_element_count;
    void *cluster_cache_array;
 
    SceUInt32 tailCluster;
    SceUInt32 tailIndex;
    SceUInt32 clusterCount;
    SceUInt32 chunkCount;
} SceExfatfsFnode;
VITASDK_BUILD_ASSERT_EQ(0x290, SceExfatfsFnode);
 
typedef struct _SceExfatfsFile { // size is 0x38-bytes
    SceExfatfsFnode *fnode;
    int mode;
    SceOff Position;
    void *Buf;
    void *BufTop;
    SceUInt32 Cluster;
    SceUInt32 clusterIndex;
    int unk_0x20;
    int unk_0x24;
    SceUInt64 cacheIndex;
    int unk_0x30;
    int unk_0x34;
} SceExfatfsFile;
VITASDK_BUILD_ASSERT_EQ(0x38, SceExfatfsFile);
 
typedef struct _SceExfatfsFileSystem { // size is 0x430-bytes
    const char *devname;
    int unk_4;
    int unk_8;
    int rsvd_sector;
 
    int unk_10;
    int available_clusters; // Number of clusters available
    void *PBRBuf;
    int unk_1C;
 
    int unk_20;
    int unk_24;
    void *unk_28; // pointer of unk_80
    int unk_2C;
 
    int unk_30;
    void *unk_34;
    void *unk_38;
    int unk_3C;
 
    int unk_40;
    int unk_44;
    int unk_48;
    int unk_4C;
 
    void *unk_50;
    void *unk_54;
    int unk_58;
    int unk_5C;
 
    int unk_60;
    int unk_64;
    int unk_68;
    int unk_6C;
 
    int unk_70;
    int unk_74;
    int unk_78;
    int unk_7C;
 
    int unk_80;
    int unk_84;
    int unk_88;
    int unk_8C;
 
    int unk_90;
    int unk_94;
    int unk_98;
    int unk_9C;
 
    int unk_A0;
    int unk_A4;
    int unk_A8;
    SceExfatfsDrive *drive;
 
    SceUInt32 mount_mode;
    int unk_B4; // SCE_EXFATFS_TYPE_*
    int unk_B8;
    SceSize sectorSize;
 
    SceUInt32 clusterSectorCount;
    SceUInt32 firstClusterOfRoot;
    SceUInt32 devSectors;
    int unk_CC;
    char data_0xD0[0x48];
    SceExfatfsFile file;
    SceExfatfsFnode fnode;
    SceKernelFastMutex *rootFastMutex;
    void *unk_0x3E4;
    SceUID unk_0x3E8;
    void *unk_0x3EC;
    SceKernelFastMutex fastmutex; // maybe not fastmutex...
} SceExfatfsFileSystem;
VITASDK_BUILD_ASSERT_EQ(0x430, SceExfatfsFileSystem);
 
typedef struct _SceExfatfsSharedResource { // size is 0x295D60-bytes
    SceExfatfsFileSystem fileSystem[SCE_EXFATFS_MAX_FILE_SYSTEM];
    SceExfatfsMbr mbr[SCE_EXFATFS_MAX_FILE_SYSTEM];
    void *data_0x5CD0;
    int data_0x5CD4;
    SceExfatfsFnode fnode[SCE_EXFATFS_MAX_FNODE];
    int data_0x295CD8[0x78 >> 2]; // unknown
    int data_0x295D50; // All SceExfatfsFnode elements number?
    int data_0x295D54; // Available SceExfatfs_data_0x5D50 elements number
    int data_0x295D58; // Related to ReserveUnusedFd
    int data_0x295D5C; // Related to ReserveUnusedFd
} SceExfatfsSharedResource;
VITASDK_BUILD_ASSERT_EQ(0x295D60, SceExfatfsSharedResource);
 
 
#ifdef __cplusplus
}
#endif
 
#endif /* _PSP2KERN_INTERNAL_EXFATFS_H_ */