📄 file.h
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/********************************************************************************
*********************************************************************************
COPYRIGHT (c) 2004 BY ROCK-CHIP FUZHOU
-- ALL RIGHTS RESERVED --
File Name: file.h
Author: XUESHAN LIN
Created: 20th Jan 2005
Modified:
Revision: 1.00
********************************************************************************
********************************************************************************/
#ifndef _FILE_H
#define _FILE_H
//1可配置参数
#define MAX_OPEN_FILES 4 /*可以同时打开的文件数目*/
#define MAX_LFN_ENTRIES 3 /*最长就3*13个字符*/
//1常量定义
/* 函数返回值 */
#define RETURN_OK 0x00 /* 操作成功*/
#define NOT_FIND_DISK 0x01 /* 逻辑盘不存在*/
#define DISK_FULL 0x02 /* 逻辑盘满*/
#define SECTOR_NOT_IN_CACHE 0x03 /* 扇区没有被cache */
#define NOT_EMPTY_CACHE 0x04 /* 没有空闲cache*/
#define SECTOR_READ_ERR 0x05 /* 读扇区错误*/
#define CLUSTER_NOT_IN_DISK 0x06 /* 逻辑盘中没有此簇 */
#define NOT_FIND_FDT 0x07 /* 没有发现文件(目录)*/
#define NOT_FAT_DISK 0x08 /* 非FAT文件系统*/
#define FDT_OVER 0x09 /* FDT索引超出范围*/
#define FDT_EXISTS 0x0a /* 文件(目录)已经存在*/
#define ROOT_FDT_FULL 0x0b /* 根目录满*/
#define DIR_EMPTY 0x0C /* 目录空*/
#define DIR_NOT_EMPTY 0x0d /* 目录不空*/
#define PATH_NOT_FIND 0x0e /* 路径未找到*/
#define FAT_ERR 0x0f /* FAT表错误*/
#define FILE_NAME_ERR 0x10 /* 文件(目录)名错误*/
#define FILE_EOF 0x11 /* 文件结束*/
#define FILE_LOCK 0x12 /* 文件被锁定*/
#define NOT_FIND_FILE 0x13 /* 没有发现指定文件*/
#define NOT_FIND_DIR 0x14 /* 没有发现指定目录*/
#define NOT_RUN 0xfd /* 命令未执行*/
#define BAD_COMMAND 0xfe /* 错误命令*/
#define PARAMETER_ERR 0xff /* 非法参数*/
#define NOT_OPEN_FILE -1 //不能打开文件,文件句柄满
#ifndef NULL
#define NULL 0
#endif
/* FAT类型 */
#ifndef FAT12
#define FAT12 0
#endif
#ifndef FAT16
#define FAT16 1
#endif
#ifndef FAT32
#define FAT32 2
#endif
/* FDT文件属性 */
#define ATTR_READ_ONLY 0x01
#define ATTR_HIDDEN 0x02
#define ATTR_SYSTEM 0x04
#define ATTR_VOLUME_ID 0x08
#define ATTR_LFN_ENTRY 0x0F /* LFN entry attribute */
#define ATTR_DIRECTORY 0x10
#define ATTR_ARCHIVE 0x20
/* 簇类型 */
#define EMPTY_CLUS 0
#define EMPTY_CLUS_1 1
#define BAD_CLUS 0x0ffffff7L
#define EOF_CLUS_1 0x0ffffff8L
#define EOF_CLUS_END 0x0fffffffL
/* FDT类型 */
#define FILE_NOT_EXIST 0
#define FILE_DELETED 0xe5
#define ESC_FDT 0x05
/* 长文件名*/
#define MAX_FILENAME_LEN ((MAX_LFN_ENTRIES * 13 * 2 + 2)/2) //结尾的NUL占用2B
#define LFN_SEQ_MASK 0x3f
/* 文件打开方式 */
#define FILE_FLAGS_READ 1 << 0 //可读
#define FILE_FLAGS_WRITE 1 << 1 //可写
/* 文件指针调整方式 */
#define SEEK_SET 0 //从文件开始处移动文件指针
#define SEEK_CUR 1 //从文件当前位置移动文件指针
#define SEEK_END 2 //从文件尾移动文件指针
#define SEEK_REF 3 //从文件参考点开始
//1结构定义
//目录表数据结构
typedef int8 HANDLE; //文件句柄数据类型定义
//查找结构体
typedef struct _FIND_DATA
{
uint32 Index;
uint32 Clus; //当前簇号
} FIND_DATA;
//目录项连接结构体
typedef struct _FDT_DATA
{
uint32 DirClus; //目录首簇
uint32 CurClus; //当前簇号
uint16 Cnt; //计数簇链
} FDT_DATA;
typedef struct _FDT
{
uint8 Name[11]; //短文件名主文件名
uint8 Attr; //文件属性
uint8 NTRes; //保留给NT
uint8 CrtTimeTenth; //建立时间（fat16保留）
uint16 CrtTime; //建立时间（fat16保留）
// uint16 reserve1; //保留
uint16 CrtDate; //建立日期（fat16保留）
// uint16 reserve2; //保留
uint16 LstAccDate; //最后访问日期（fat16保留）
// uint16 reserve3; //保留
uint16 FstClusHI; //起始簇号高两个字节（fat16保留）
// uint16 reserve4; //保留
uint16 WrtTime; //最后写时间
// uint16 reserve5; //保留
uint16 WrtDate; //最后写日期
// uint16 reserve6; //保留
uint16 FstClusLO; //起始簇(cluster)号低两个字节
// uint16 reserve7; //保留
uint32 FileSize; //文件大小
// uint16 reserve8; //保留
// uint16 reserve9; //保留
} FDT;
//文件信息结构体
typedef struct _FILE
{
uint8 Flags; //一些标志
uint8 Name[11]; //文件名
uint32 DirClus; //所在目录开始簇号
uint32 FileSize; //文件大小
uint32 FstClus; //起始簇号
uint32 Clus; //当前簇号
uint32 Offset; //文件指针偏移量
uint32 RefClus; //当前簇号
uint32 RefOffset; //文件指针偏移量
} MY_FILE;
typedef struct _recovery_info
{
uint8 Media;
uint8 Flag;
uint8 FileName[11];
uint8 FstClus0;
uint8 FstClus1;
uint8 FstClus2;
uint8 FstClus3;
uint8 DirClus0;
uint8 DirClus1;
uint8 DirClus2;
uint8 DirClus3;
} RCV_INFO, *PRCV_INFO;
//1全局变量
#undef EXT
#ifdef IN_FILE
#define EXT
#else
#define EXT extern
#endif
EXT uint32 CurDirClus DRAM_FAT; //当前目录簇
EXT MY_FILE FileInfo[MAX_OPEN_FILES] DRAM_FAT; //同时打开文件信息表
EXT uint8 LongFileName[MAX_FILENAME_LEN] DRAM_FAT; //长文件名
EXT RCV_INFO EncRcvInfo DRAM_FAT;
#undef EXT
#ifdef IN_nFAT
#define EXT
#else
#define EXT extern
#endif
EXT uint8 FatBuf[512] DRAM_FAT; //FAT表CACHE
EXT uint8 FdtBuf[512] DRAM_FAT; //FDT表CACHE
EXT uint32 FatCacheSec DRAM_FAT; //当前的Cache FAT表扇区号
EXT uint32 Fat2CacheSec DRAM_ENCODE; //当前的Cache FAT2表扇区号
EXT uint8 Fat2Buf[512] DRAM_ENCODE; //FAT2表CACHE
EXT uint16 Fat2WriteLen DRAM_ENCODE; //FAT2 长度计数
EXT uint8 Fat2WriteBuf[2048] DRAM_ENCODE; //FAT2K BUF
EXT uint16 FileWriteLen DRAM_ENCODE; //file write 长度计数
EXT uint8 FileWriteBuf[2048] DRAM_ENCODE; //file write BUF
EXT uint32 FileWriteResidue DRAM_ENCODE; //file write 长度计数
EXT uint32 FdtCacheSec DRAM_FAT; //当前的Cache FDT表扇区号
EXT uint8 Progress DRAM_FAT;
EXT uint32 ScanStartClus DRAM_FAT;
EXT uint32 ScanEndClus DRAM_FAT;
EXT uint32 ScanLBA DRAM_FAT;
EXT uint32 Copy1Src DRAM_FAT;
EXT uint32 Copy2Src DRAM_FAT;
EXT uint32 Copy1Dest DRAM_FAT;
EXT uint32 Copy2Dest DRAM_FAT;
EXT uint16 Copy1Len DRAM_FAT;
EXT uint16 Copy2Len DRAM_FAT;
EXT uint32 TotalEmptySectors DRAM_FAT;
EXT uint16 ScanEraseSectors DRAM_FAT;
EXT FDT_DATA FdtData DRAM_FAT;
EXT uint32 FreeMem[2] DRAM_FAT;
/*******************************************************************************************************/
//1函数原型声明
//#ifndef IN_FILE
extern void FileInit(void);
extern void FileFragClean(void);
extern HANDLE FileCreate(uint8 *Path, uint8 *DirFileName);
extern uint8 FileDelete(uint8 *Path, uint8 *DirFileName);
extern HANDLE FileOpen(uint8 *Path, uint8 *DirFileName, uint8 *Type);
extern uint8 FileClose(HANDLE Handle);
extern uint16 FileRead(uint8 *Buf, uint16 Size, HANDLE Handle);
extern uint16 FileWrite(uint8 *Buf, uint16 Size, HANDLE Handle);
extern uint8 FileCopy(uint8 *SrcPath, uint8 *DestPath, FDT *SrcFile);
extern bool FileEof(HANDLE Handle);
extern uint8 FileSeek(int32 offset, uint8 Whence, HANDLE Handle);
extern HANDLE FindOpenFile(uint32 DirClus, uint8 *FileName);
extern bool FileExtNameMatch(uint8 *SrcExtName, uint8 *Filter);
extern uint8 FindFile(FDT *Rt, uint16 FileNum, uint8 *Path, uint8 *ExtName);
extern uint8 FindFileBrowser(FDT *Rt, uint16 FileNum, uint8 *Path, uint8 *ExtName);
extern uint8 FindFirst(FDT *Rt, FIND_DATA* FindData, uint8 *Path, uint8 *ExtName);
extern uint8 FindNext(FDT *Rt, FIND_DATA* FindData, uint8 *ExtName);
extern uint8 FindDirFirst(FDT *Rt, FIND_DATA* FindData, uint8 *Path);
extern uint8 FindDirNext(FDT *Rt, FIND_DATA* FindData);
extern uint16 GetTotalFiles(uint8 *Path, uint8 *ExtName);
extern void GetLongFileName(uint8 *lfn);
extern uint16 GetCurFileNum(uint16 FileNum, uint8 *ExtName);
extern uint16 GetGlobeFileNum(uint16 FileNum, uint8 *Path, uint8 *ExtName);
extern void StrUprCase(uint8 *name);
extern HANDLE FileOpenSys(uint8 *Path, uint8 *DirFileName, uint8 Attribute, uint8 *Type);
extern uint16 FileWriteSys(uint8 *Buf, uint16 Size, HANDLE Handle);
extern uint8 FileCloseSys(HANDLE Handle);
extern uint8 FileRefSet(HANDLE Handle);
extern uint8 FileRefReset(HANDLE Handle);
#ifdef RECOVERY
extern uint8 RecoveryEncInfo(RCV_INFO* RecoveryInfo);
extern void SaveEncInfo(RCV_INFO* RecoveryInfo);
#endif
//#endif
/*******************************************************************************************************/
/*******************************************************************************************************/
//#ifndef IN_FDT
extern uint8 ChangeFDT(uint32 ClusIndex, FDT *FDTData);
extern uint8 ReadFDTInfo(FDT *Rt, uint32 SecIndex, uint16 ByteIndex);
extern uint8 WriteFDTInfo(FDT *FDTData, uint32 SecIndex, uint16 ByteIndex);
extern uint8 GetFDTInfo(FDT *Rt, uint32 ClusIndex, uint32 Index);
extern uint8 SetFDTInfo(uint32 ClusIndex, uint32 Index, FDT *FDTData);
extern uint8 FindFDTInfo(FDT *Rt, uint32 ClusIndex, uint8 *FileName);
extern uint8 AddFDT(uint32 ClusIndex, FDT *FDTData);
extern uint8 DelFDT(uint32 ClusIndex, uint8 *FileName);
extern uint8 FDTIsLie(uint32 ClusIndex, uint8 *FileName);
//#endif
/*******************************************************************************************************/
//#ifndef IN_nFAT
extern uint32 FATGetNextClus(uint32 Index);
extern uint32 FAT16GetClus(uint32 Index, uint32 Count);
extern uint32 FAT32GetClus(uint32 Index, uint32 Count);
#ifdef ENCODE
extern uint32 GetInvaildMem(uint8 memory);
extern void FATSetNextClus(uint32 Index, uint32 Next);
extern uint32 FATAddClus(uint32 Index);
extern uint32 FAT2GetNextClus(uint32 Index);
extern void FAT2SetNextClus(uint32 Index, uint32 Next);
extern uint32 FAT2AddClus(uint32 Index);
extern void GarbageCollectionInit(void);
extern void GarbageCollectionFinish(void);
extern void GarbageCollection(void);
extern void EraseFAT(uint8 FatNum);
extern uint32 SaveToFAT1(uint32 FirstClus);
#endif
extern void FATDelClusChain(uint32 Index);
extern uint32 GetFreeMem(uint8 memory);
extern uint32 GetTotalMem(uint8 memory);
extern uint32 GetFreeMemFast(uint8 memory);
extern void UpdataFreeMem(int32 size);
extern void UpdataFreeMemFast(uint32 size);
//#endif
#endif
/*********************************************************************************************************
** End Of File
********************************************************************************************************/
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