#include <Include.h>
#include <TQFS_File.h>
#include <stdlib.h>
/*******************************************************************************
Func:删除文件标准文件路径 .eg /example/新建文件.txt
Date:2014-7-27
Note:FileSize=0时为不确定文件长度
*******************************************************************************/
uint8 TQFS_FileDelete(uint8 *Path)
{
TQFS_Open_File Open_File;
StringCoppy(Path,&Open_File.Path[0]);
return 0;
}
/*******************************************************************************
Func:填充文件容器基本信息
Date:2014-7-27
Note:FileSize=0时为不确定文件长度
*******************************************************************************/
void TQFS_FileRoomInfor(File_Infor *FI,void *File,uint32 FileSize,uint8 FileVirtue)
{
uint8 Buf[14];
BufferFill(FI,0xff,sizeof(File_Infor));//配置不设置项为不修改状态
GetFileName(File,&Buf[0]);
StringCoppy(&Buf[0],&FI->FileName[0]);
GetFileFormat(File,&Buf[0]);
StringCoppy(&Buf[0],&FI->FileFormat[0]);
FI->FileType=FT_ReadyRoom;//待分配的文件类型
BufferCoppy(&NowTime,&FI->CreateDate,sizeof(Date_Time));
FI->Page_Status=PS_BeUse;//页即将被使用
if(FileSize)FI->FileSize=FileSize;
FI->FileID=rand();//文件ID其实就是随机数，但必须保证同一个文件的ID号相同
FI->FileVirtue=FileVirtue;//可读可写隐藏等属性
}
/*******************************************************************************
Func:在某某页创建文件空间
Date:2014-7-27
Note:Page为相对位置即认为文件存储区首页为第一页
*******************************************************************************/
uint32 TQFS_CreateFileRoom(TQFS_Open_File *Open_File,uint32 Page,File_Infor *FI)
{
FI->FileID=Page;
FI->FileIndex=0;
DeBug("Create Object File In Page[%d]",Page,Infor_Infor);
Write_FileInfor(Page,FI);
TQFS_SetCursor(Open_File,Page,0);
return 0;
}
/*******************************************************************************
Func:设置读写操作游标
Date:2014-7-27
Note:Page为相对位置即认为文件存储区首页为第一页
*******************************************************************************/
void TQFS_SetCursor(TQFS_Open_File *Open_File,uint32 Page,uint16 Offset)
{
Open_File->PageCursor=Page;
Open_File->OffsetCursor=Offset;
}
/*******************************************************************************
Func:读取页面内容
Date:2014-7-27
Note:返回状态
*******************************************************************************/
TQFS_Error TQFS_ReadPageContext(TQFS_Open_File *Open_File,uint8 *rBuffer,uint16 Length)
{
File_Infor TempFile;
int OviLenth;
uint16 Offset=0;
OviLenth=(Open_File->OffsetCursor+Length);
OviLenth-=NAND_PAGE_SIZE;//写不下的长度
if(OviLenth>=0)//当前页不够
{
Nand_ReadPage(Nand_Infor.FileStartPage+Open_File->PageCursor,&rBuffer[Offset],Open_File->OffsetCursor+NAND_SPARE_SIZE,Length-OviLenth);
Offset=Length-OviLenth;
Open_File->OffsetCursor=0;
Read_FileInfor(Open_File->PageCursor,&TempFile);
if(TempFile.NextPageAddr==0xffffffff)return TE_NoNextPage;
else{
Open_File->PageCursor=TempFile.NextPageAddr;
Length=OviLenth;
}
}
Nand_ReadPage(Nand_Infor.FileStartPage+Open_File->PageCursor,&rBuffer[Offset],Open_File->OffsetCursor+NAND_SPARE_SIZE,Length);
Open_File->OffsetCursor+=Length;
if(OviLenth>=0)return TE_NewPage;
else return TE_CurrentPage;
}
/*******************************************************************************
Func:写内容到指定页
Date:2014-7-27
Note:返回该页写完的剩余量
*******************************************************************************/
TQFS_Error TQFS_WritePageContext(TQFS_Open_File *Open_File,uint8 *Buffer,uint16 Length)
{
File_Infor TempFile;
int OviLenth;
uint16 Offset=0;
OviLenth=(Open_File->OffsetCursor+Length);
OviLenth-=NAND_PAGE_SIZE;//写不下的长度
if(OviLenth>=0)//当前页不够
{
Nand_WritePage(Nand_Infor.FileStartPage+Open_File->PageCursor,&Buffer[Offset],Open_File->OffsetCursor+NAND_SPARE_SIZE,Length-OviLenth);
Offset=Length-OviLenth;
Open_File->OffsetCursor=0;
Read_FileInfor(Open_File->PageCursor,&TempFile);
TempFile.NextPageAddr=TQFS_FindKeyPageMark(PS_CanUse,PS_BeUse);
TempFile.Page_Status=PS_UsedFully;//标记页被使用完
Write_FileInfor(Open_File->PageCursor,&TempFile);//在当前页写入下页地址
Open_File->PageCursor=TempFile.NextPageAddr;
TempFile.Page_Status=PS_NotFully;
TempFile.PreviousPageAddr=Open_File->PageCursor;
TempFile.NextPageAddr=0xffffffff;
Write_FileInfor(Open_File->PageCursor,&TempFile);//在当前页写入下页地址
Length=OviLenth;
}
Nand_WritePage(Nand_Infor.FileStartPage+Open_File->PageCursor,&Buffer[Offset],Open_File->OffsetCursor+NAND_SPARE_SIZE,Length);
Open_File->OffsetCursor+=Length;
if(OviLenth>=0)return TE_NewPage;
else return TE_CurrentPage;
}
void TQFS_RootDirCreate(TQFS_Open_File *Open_File)
{
uint32 i;
File_Infor TempFile;
i=TQFS_FindKeyPageMark(PS_CanUse,PS_BeUse);
TempFile.FileType=FT_RootDirHead;
TQFS_FileRoomInfor(&TempFile,"RootDir",0,ReadOnly);
TQFS_CreateFileRoom(Open_File,i,&TempFile);
}
uint8 TQFS_FileCreate(uint8 *Path,uint8 State)
{
return 0;
}
TQFS_Error TQFS_FindFileByName(uint8 *File,uint16 Length)
{
File_Infor Temp_File;
uint32 StartPage=0;
while(Length--)
{
Read_FileInfor(StartPage,&Temp_File);
StartPage++;
}
return TE_NotFind;
}
#include <Include.h>
#include <Tos_device.h>
DeviceInfor _Tos_Device_Tab[_Tos_DeviceTotal];
/*---------------------------------------------------------------------------------------------------------
Func: 设备信息列表初始化
Time: 2014-5-22
Ver.: V1.0
Note;
---------------------------------------------------------------------------------------------------------*/
void DeviceList_Init()
{
uint8 i;
for(i=0;i<_Tos_DeviceTotal;i++)
{
_Tos_Device_Tab[i].DeviceId=Null;
_Tos_Device_Tab[i].Init=Null;
_Tos_Device_Tab[i].DeviceState=Ready;
_Tos_Device_Tab[i].Read=Null;
_Tos_Device_Tab[i].Write=Null;
_Tos_Device_Tab[i].Exit=Null;
}
}
BOOL Tos_TaskGetDev(uint8 ID,uint32 Timeout)
{
GoGet:
switch(_Tos_Device_Tab[ID].DeviceState)
{
case Delete:
return FALSE;
case Busy:
if(_Tos_Device_Tab[ID].DeviceOwnerId==Tos_TaskCurrent)return TRUE;
else {Tos_WaitDev(ID);goto GoGet;}
case NotBusy:
_Tos_Device_Tab[ID].DeviceState=Busy;
_Tos_Device_Tab[ID].DeviceOwnerId=Tos_TaskCurrent;
return TRUE;
case Ready:
_Tos_Device_Tab[ID].DeviceState=Busy;
_Tos_Device_Tab[ID].DeviceOwnerId=Tos_TaskCurrent;
return TRUE;
default :return FALSE;
}
}
BOOL Tos_TaskDropDev(uint8 ID)
{
if(_Tos_Device_Tab[ID].DeviceState==Delete)return FALSE;
if(_Tos_Device_Tab[ID].DeviceOwnerId!=Tos_TaskCurrent)return FALSE;
_Tos_Device_Tab[ID].DeviceState=NotBusy;
return TRUE;
}
/*---------------------------------------------------------------------------------------------------------
Func: 各设备初始化及设备注册
Time: 2014-5-22
Ver.: V1.0
Note;设备在注册登记后需要对设备列表里的设备进行初始化
---------------------------------------------------------------------------------------------------------*/
void Device_Init()
{
uint8 i;
for(i=0;i<_Tos_DeviceTotal;i++)
{
if(_Tos_Device_Tab[i].DeviceId!=Null)
{
if(_Tos_Device_Tab[i].Init)_Tos_Device_Tab[i].Init();
}
}
}
void DeviceList_Printf()
{
uint8 i;
for(i=0;i<_Tos_DeviceTotal;i++)
{
if(_Tos_Device_Tab[i].DeviceId!=Null)
{
DeBug("%s%d%s%s","Device[",i,"]Name:",_Tos_Device_Tab[i].DeviceName,Infor_Infor);
}
}
}
BOOL DeviceUnMount(uint8 ID)
{
if(_Tos_Device_Tab[ID].Exit){_Tos_Device_Tab[ID].Exit();return TRUE;}
return FALSE;
}
使用例子
TRTOS +TQFS多个任务同时读写文件的互斥操作,布布扣,bubuko.com
原文地址：http://blog.csdn.net/trtos/article/details/38333421
