/*********************************************************************************************************
** 函数名称: MakeDir
** 功能描述: 建立目录
**
** 输 入: Path:路径名
**
** 输 出: RETURN_OK：成功
** 其它参考fat.h中关于返回值的说明
** 全局变量: 无
** 调用模块: strupr,ClearClus,AddFDT
********************************************************************************************************/
acoral_u8 MakeDir(acoral_char *Path)
{
acoral_u32 ClusIndex, Temp1;
acoral_u8 Drive, Rt;
FDT temp;
strupr(Path); /* 变为大写 */
ClusIndex = _GetFDTInfo(temp.Name, Path);
if (ClusIndex == BAD_CLUS)
{
return PATH_NOT_FIND;
}
Drive = GetDrive(Path);
/* FDT是否存在 */
Rt = FDTIsLie(Drive, ClusIndex, temp.Name);
if (Rt != NOT_FIND_FDT)
{
return Rt;
}
/* 不存在 */
Temp1 = FATAddClus(Drive, 0); /* 获取目录所需磁盘空间 */
if ((Temp1 <= EMPTY_CLUS_1) || (Temp1 >= BAD_CLUS))
{
/* 没有空闲空间 */
return DISK_FULL;
}
ClearClus(Drive, Temp1); /* 清空簇 */
/* 设置FDT属性 */
temp.Attr = ATTR_DIRECTORY;
temp.FileSize = 0;
temp.NTRes = 0;
temp.CrtTimeTenth = 0;
temp.CrtTime = 0;
temp.CrtDate = 0;
temp.LstAccDate = 0;
temp.WrtTime = 0;
temp.WrtDate = 0;
temp.FstClusLO = Temp1 & 0xffff;
temp.FstClusHI = Temp1 / 0x10000;
Rt = AddFDT(Drive, ClusIndex, &temp); /* 增加目录项 */
if (Rt == RETURN_OK)
{
/* 建立'.'目录 */
temp.Name[0] = '.';
temp.Name[1] = 0x20;
temp.Name[2] = 0x20;
temp.Name[3] = 0x20;
temp.Name[4] = 0x20;
temp.Name[5] = 0x20;
temp.Name[6] = 0x20;
temp.Name[7] = 0x20;
temp.Name[8] = 0x20;
temp.Name[9] = 0x20;
temp.Name[10] = 0x20;
AddFDT(Drive, Temp1, &temp);
/* 建立'..'目录 */
temp.Name[1] = '.';
temp.FstClusLO = ClusIndex & 0xffff;
temp.FstClusHI = ClusIndex / 0x10000;
Rt = AddFDT(Drive, Temp1, &temp);
}
else
{
FATDelClusChain(Drive, Temp1);
}
return Rt;
}
/*********************************************************************************************************
** Name :MakeDir
** Description :create direction
** Input :Path: DirFileName the path name use the 8.3 format.
** Output :RETURN_OK：成功
** other reference the return value explain in file fat.h
** global :FileInfo
** call module :AddFDT, GetDirClusIndex
********************************************************************************************************/
IRAM_ENCODE
uint8 MakeDir(uint8 *Path, uint8 *DirFileName)
{
uint8 Rt;
uint8 i;
uint32 ClusIndex, Temp1;
FDT temp;
StrUprCase(Path);
ClusIndex = GetDirClusIndex(Path);
Rt = PATH_NOT_FIND;
if (ClusIndex != BAD_CLUS)
{
for (i = 0; i < 11; i++) //目录项填空格
{
temp.Name[i] = ' ';
}
for (i = 0; i < 11; i++)
{
if (*DirFileName == '\0') //到路径结束
{
break;
}
temp.Name[i] = *DirFileName++;
}
/* FDT是否存在 */
Rt = FDTIsLie(ClusIndex, temp.Name);
if (Rt == NOT_FIND_FDT)
{
/* 不存在 */
Temp1 = FATAddClus(0); /* 获取目录所需磁盘空间 */
Rt = DISK_FULL; /* 没有空闲空间 */
if ((Temp1 > EMPTY_CLUS_1) && (Temp1 < BAD_CLUS))
{
ClearClus(Temp1); /* 清空簇 */
/* 设置FDT属性 */
temp.Attr = ATTR_DIRECTORY;
temp.FileSize = 0;
temp.NTRes = 0;
temp.CrtTimeTenth = 0;
temp.CrtTime = 0;
temp.CrtDate = 0;
temp.LstAccDate = 0;
temp.WrtTime = 0;
temp.WrtDate = 0;
temp.FstClusLO = Temp1 & 0xffff;
temp.FstClusHI = Temp1 / 0x10000;
Rt = AddFDT(ClusIndex, &temp); /* 增加目录项 */
if (Rt == RETURN_OK)
{
/* 建立'.'目录 */
temp.Name[0] = '.';
for (i = 1; i < 11; i++)
{
temp.Name[i] = ' ';
}
AddFDT(Temp1, &temp);
/* 建立'..'目录 */
temp.Name[1] = '.';
if (ClusIndex == BootSector.BPB_RootClus)
{
ClusIndex = 0;
}
temp.FstClusLO = ClusIndex & 0xffff;
temp.FstClusHI = ClusIndex / 0x10000;
Rt = AddFDT(Temp1, &temp);
}
else
{
FATDelClusChain(Temp1);
}
Rt = RETURN_OK;
}
}
}
///////////////////////////////////////////////////////////
//回写FAT Cache
if (gFatCache.Sec!=0 && gFatCache.Flag!=0)
{
gFatCache.Flag=0;
FATWriteSector(gFatCache.Sec, gFatCache.Buf);
}
///////////////////////////////////////////////////////////
return (Rt);
}
