?? hpi32.c
字號:
#include "common.h"
#include "TPBULK.H"
#include "HPI.H"
#include "HAL.H"
#include "Fat.h"
#include "Fat32.h"
#include "HPI32.H"
extern FLAGS bdata bFlags;
extern unsigned char xdata DBUF[BUFFER_LENGTH];
//////////////////////////////////////////
extern unsigned char xdata UARTBUF[UARTBUF_LENGTH];
extern SYS_INFO_BLOCK xdata DeviceInfo;
extern FILE_INFO xdata ThisFile;
extern Command_Def xdata Command;
extern Response_Def xdata Response;
unsigned long xdata DirStartCluster32,NowCluster32;
extern unsigned long xdata NowSector;
extern ShowFileName_Def xdata ShowFileName[MaxLFNum]; //long file struct
/////////////////////////////////////////////
unsigned char UartHandler32(void)
{
Response.Result=0;Response.len=0;
switch(Command.CLass)
{
case 0x00: //List
Response.Result=List32();
break;
case 0x01: //Open File
Response.Result=OpenFile32(Command.Parameter);
break;
case 0x02: //Read File
Response.Result=ReadFile32(Command.len,UARTBUF);
break;
case 0x03: //Set Pointer
Response.Result=SetFilePointer32(Command.len);
break;
case 0x04: //Great File
Response.Result=OpenFile32(Command.Parameter);
if(Response.Result)
{
Response.Result=SetFilePointer32(ThisFile.LengthInByte);
}
else
Response.Result=CreateFile32(Command.len,Command.Parameter,UARTBUF);
break;
case 0x05: //Write File
Response.Result=WriteFile32(Command.len,UARTBUF);
break;
case 0x06: //Remove File
ThisFile.bFileOpen=0;
Response.Result=RemoveFile32(Command.Parameter);
break;
case 0x07: //Get Space
Response.Result=GetCapacity32();
break;
case 0x08: //DetectDisk
if(bFlags.bits.SLAVE_IS_ATTACHED)
Response.Result=1;
break;
case 0x09: //Great Dir
Response.Result=DownDir32(Command.Parameter);
if(!Response.Result)
Response.Result=CreateDir32(Command.len,Command.Parameter,UARTBUF);
break;
case 0x0a: //Down Dir
Response.Result=DownDir32(Command.Parameter);
break;
case 0x0b: //Up Dir
Response.Result=UpDir32();
break;
case 0x0c: //Up RootDir
Response.Result=UpRootDir32();
break;
}
UartSendRsp();
///////////////////////////////
return TRUE;
}
unsigned char List32(void)
{
unsigned int item,i;
unsigned char k,bstop,sector;
unsigned char Lcount,Ncount,base;
if(!bFlags.bits.SLAVE_IS_ATTACHED)
return FALSE;
item=0;
bstop=0;
////////////////////////////////////
Lcount=0;
for(i=0;i<MaxLFNum;i++)
{
ShowFileName[i].LongName[0]=0x00;
ShowFileName[i].LongName[1]=0x00;
}
//////////////////////////////////////////////////////////////////
NowCluster32=DirStartCluster32;
do
{
NowSector=FirstSectorofCluster32(NowCluster32);
for(sector=0;sector<DeviceInfo.BPB_SecPerClus;sector++)
{
if(!RBC_Read(NowSector+sector,1,DBUF))
return FALSE;
for(i=0;i<DeviceInfo.BPB_BytesPerSec;i=i+32)
{
if(DBUF[i]==0x00)
{bstop=1;break;}
else if(DBUF[i]==0xE5)
continue;
else
{
for(k=0;k<32;k++)
UARTBUF[item*32+k]=DBUF[i+k];
item=item+1;
/////////////////////////////////
if(DBUF[i+11]==0x0F)
{
base=((DBUF[i]&0x1F)-1)*26;
if(base<=224)
{
Ncount=0;
for(k=1;k<11;k++)
{
ShowFileName[Lcount].LongName[base+Ncount]=DBUF[i+k];
Ncount++;
}
for(k=14;k<26;k++)
{
ShowFileName[Lcount].LongName[base+Ncount]=DBUF[i+k];
Ncount++;
}
for(k=28;k<32;k++)
{
ShowFileName[Lcount].LongName[base+Ncount]=DBUF[i+k];
Ncount++;
}
}
}
else
{
for(k=0;k<32;k++)
ShowFileName[Lcount].item[k]=DBUF[i+k];
Lcount++;
}
/////////////////////////////////
}
}
if(bstop==1)break;
}
if(bstop==1)break;
NowCluster32=GetNextClusterNum32(NowCluster32);
}while(NowCluster32<=DeviceInfo.TotCluster);
Response.len=item*32;
return TRUE;
}
unsigned char OpenFile32(unsigned char *pBuffer)
{
unsigned int i;
unsigned char j,bstop,sector;
if(!bFlags.bits.SLAVE_IS_ATTACHED)
return FALSE;
ThisFile.bFileOpen=0;
NowCluster32=DirStartCluster32;
do
{
NowSector=FirstSectorofCluster32(NowCluster32);
for(sector=0;sector<DeviceInfo.BPB_SecPerClus;sector++)
{
if(!RBC_Read(NowSector+sector,1,DBUF))
return FALSE;
for(i=0;i<DeviceInfo.BPB_BytesPerSec;i=i+32)
{
if(DBUF[i]==0x00)
return FALSE;
j=0;
while(DBUF[i+j]==*(pBuffer+j))
{
j=j+1;
if(j>10)
break;
}
if(j>10&&(DBUF[i+11]&0x10)!=0x10)
{
for(j=0;j<32;j++)
UARTBUF[j]=DBUF[i+j];
bstop=1;
break;
}
}
if(bstop==1)break;
}
if(bstop==1)break;
NowCluster32=GetNextClusterNum32(NowCluster32);
}while(NowCluster32<=DeviceInfo.TotCluster);
if(NowCluster32>DeviceInfo.TotCluster)
return FALSE;
ThisFile.bFileOpen=1;
ThisFile.StartCluster=LSwapINT32(UARTBUF[26],UARTBUF[27],UARTBUF[20],UARTBUF[21]);
ThisFile.LengthInByte=LSwapINT32(UARTBUF[28],UARTBUF[29],UARTBUF[30],UARTBUF[31]);
ThisFile.ClusterPointer=ThisFile.StartCluster;
ThisFile.SectorPointer=FirstSectorofCluster32(ThisFile.StartCluster);
ThisFile.OffsetofSector=0;
ThisFile.SectorofCluster=0;
ThisFile.FatSectorPointer=0;
ThisFile.pointer=0;
Response.len=32;
return TRUE;
}
unsigned char ReadFile32(unsigned long readLength,unsigned char *pBuffer)
{
unsigned int len,i;
unsigned int tlen;
unsigned long blen;
if(!bFlags.bits.SLAVE_IS_ATTACHED)
return FALSE;
if(!ThisFile.bFileOpen)
return FALSE;
blen=readLength;
tlen=0;
if(readLength>MAX_READ_LENGTH)
return FALSE;
if(readLength+ThisFile.pointer>ThisFile.LengthInByte)
return FALSE;
////////////////////////////////////////////
while(readLength>0)
{
if(readLength+ThisFile.OffsetofSector>DeviceInfo.BPB_BytesPerSec)
len=DeviceInfo.BPB_BytesPerSec;
else
len=readLength+ThisFile.OffsetofSector;
//////////////////////////////////////////////////////
if(ThisFile.OffsetofSector>0)
{
if(RBC_Read(ThisFile.SectorPointer,1,DBUF))
{
len=len-ThisFile.OffsetofSector;
for(i=0;i<len;i++)
*(pBuffer+i)=DBUF[ThisFile.OffsetofSector+i];
ThisFile.OffsetofSector=ThisFile.OffsetofSector+len;
}
else
return FALSE;
}
else
{
if(!RBC_Read(ThisFile.SectorPointer,1,pBuffer+tlen))
return FALSE;
ThisFile.OffsetofSector=len;
}
////////////////////////////////////////////////////////////
readLength-=len;
tlen+=len;
/////////////////////////////////////////////////////////
if((ThisFile.OffsetofSector>DeviceInfo.BPB_BytesPerSec-1)&&(tlen+ThisFile.pointer<ThisFile.LengthInByte))
{
ThisFile.OffsetofSector-=DeviceInfo.BPB_BytesPerSec;
ThisFile.SectorofCluster+=1;
if(ThisFile.SectorofCluster>DeviceInfo.BPB_SecPerClus-1)
{
ThisFile.SectorofCluster=0;
ThisFile.ClusterPointer=GetNextClusterNum32(ThisFile.ClusterPointer);
if(ThisFile.ClusterPointer>DeviceInfo.TotCluster)
return FALSE;
ThisFile.SectorPointer=FirstSectorofCluster32(ThisFile.ClusterPointer);
}
else
ThisFile.SectorPointer=ThisFile.SectorPointer+1;
}
//////////////////////////////////////////////////////////////////
}//end while
ThisFile.bFileOpen=1;
ThisFile.pointer+=tlen;
//////////////////////////////////////////////
Response.len=blen;
return TRUE;
}
unsigned char SetFilePointer32(unsigned long pointer)
{
if(!bFlags.bits.SLAVE_IS_ATTACHED)
return FALSE;
if(!ThisFile.bFileOpen)
return FALSE;
///////////////////////////////////////////////////////////
ThisFile.pointer=pointer;
if(ThisFile.pointer>ThisFile.LengthInByte)
return FALSE;
if(!GoToPointer32(ThisFile.pointer))
{
ThisFile.bFileOpen=0;
return FALSE;
}
//////////////////////////////////////////////
return TRUE;
}
unsigned char CreateFile32(unsigned long len,unsigned char *pBuffer,unsigned char *pName)
{
unsigned int sector,i,j,DirCount;
unsigned long cnum;
unsigned char xdata bstop,InByte,bwrite;
unsigned long ClusterPointer;
if(!bFlags.bits.SLAVE_IS_ATTACHED)
return FALSE;
if((len%32)!=0)
return FALSE;
if((len+32)>DeviceInfo.BPB_BytesPerSec)
return FALSE;
ThisFile.bFileOpen=0;
cnum=GetFreeCusterNum32();
if(cnum<0x02)
return FALSE;
pBuffer[21]=(unsigned char)(cnum>>24);
pBuffer[20]=(unsigned char)(cnum>>16);
pBuffer[27]=(unsigned char)(cnum>>8);
pBuffer[26]=(unsigned char)(cnum);
pBuffer[28]=0;pBuffer[29]=0;pBuffer[30]=0;pBuffer[31]=0;
bstop=0;
NowCluster32=DirStartCluster32;
do
{
NowSector=FirstSectorofCluster32(NowCluster32);
ClusterPointer=NowCluster32;
for(sector=0;sector<DeviceInfo.BPB_SecPerClus;sector++)
{
if(!RBC_Read(NowSector+sector,1,DBUF))
return FALSE;
DirCount=0;bwrite=0;
for(i=0;i<DeviceInfo.BPB_BytesPerSec;i=i+32)
{
if(len==0)
{
if((DBUF[i]==0x00)||(DBUF[i]==0xE5))
{
for(j=0;j<32;j++)
DBUF[i+j]=*(pBuffer+j);
if(!RBC_Write(NowSector+sector,1,DBUF))
return FALSE;
bstop=1;
break;
}
}
else
{
if(DirCount==0)
InByte=i;
if(DBUF[i]==0xE5)
DirCount++;
else if(DBUF[i]==0x00)
{
DirCount++;
DBUF[i]=0xE5;
bwrite=1;
}
else
DirCount=0;
if((DirCount*32)>=(len+32))
{
for(j=0;j<len;j++)
DBUF[InByte+j]=*(pName+j);
for(j=0;j<32;j++)
DBUF[InByte+len+j]=*(pBuffer+j);
if(!RBC_Write(NowSector+sector,1,DBUF))
return FALSE;
bstop=1;
break;
}
}
}
if(bstop==1)break;
if((len!=0)&&(bwrite==1))
{
if(!RBC_Write(NowSector+sector,1,DBUF))
return FALSE;
}
}
if(bstop==1)break;
NowCluster32=GetNextClusterNum32(NowCluster32);
if(NowCluster32>DeviceInfo.TotCluster)
{
NowCluster32=CreateClusterLink32(ClusterPointer);
if(NowCluster32==0x00)
return FALSE;
NowSector=FirstSectorofCluster32(NowCluster32);
for(i=0;i<DeviceInfo.BPB_BytesPerSec;i++) DBUF[i]=0x00;
for(sector=0;sector<DeviceInfo.BPB_SecPerClus;sector++)
{
if(!RBC_Write(NowSector+sector,1,DBUF))
return FALSE;
}
}
}while(NowCluster32<=DeviceInfo.TotCluster);
////////////////////////////////////////////////////////////////
ThisFile.StartCluster=cnum;
ThisFile.LengthInByte=0;
ThisFile.ClusterPointer=ThisFile.StartCluster;
ThisFile.SectorPointer=FirstSectorofCluster32(ThisFile.StartCluster);
ThisFile.OffsetofSector=0;
ThisFile.SectorofCluster=0;
ThisFile.bFileOpen=1;
ThisFile.pointer=0;
ThisFile.FatSectorPointer=0;
return TRUE;
}
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