Create exfatfs.h

docs/definitions.dox

@@ -435,6 +435,15 @@
  * \}
  *
  *
+ * \defgroup Internal Internal
+ *  Internal definitions used by the system (like used in non-export function)
+ * \{
+ *     \defgroup SceExfatfs FileSystem handler
+ *      The FileSystem vfs handler
+ *
+ * \}
+ *
+ *
  * \defgroup Miscellaneous Miscellaneous
  *  Various Libraries that don't fit in other categories
  * \{

include/psp2kern/internal/exfatfs.h

@@ -0,0 +1,219 @@
+/**
+ * \kernelgroup{SceExfatfs}
+ * \usage{psp2kern/internal/exfatfs.h}
+ */
+
+#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_ */

include/vitasdkkern.h

@@ -22,6 +22,8 @@
 #include <psp2kern/usbserial.h>
 #include <psp2kern/usbserv.h>
 
+#include <psp2kern/internal/exfatfs.h>
+
 #include <psp2kern/io/devctl.h>
 #include <psp2kern/io/dirent.h>
 #include <psp2kern/io/fcntl.h>