FLStatus markUnitBad(FLFlash * flash, CardAddress badUnit)
{
static byte zeroes[2] = {0,0};
dword offset;
/* Mark the first page with 00. If the write operation
fails try marking the following pages of the block */
for (offset = 0 ; (offset < flash->erasableBlockSize) &&
(flash->write(flash,(badUnit << flash->erasableBlockSizeBits)+offset,
zeroes,sizeof(zeroes),0) != flOK);
offset += flash->pageSize);
/* Entire block can not be written to */
if (offset == flash->erasableBlockSize)
DFORMAT_PRINT(("ERROR - Failed marking unit as bad (address %ld).\n",badUnit));
return flOK;
}
FLStatus getExbInfo(Volume vol, void FAR1 * buf, dword bufLen, word exbFlags)
{
byte i;
byte mediaType;
ExbGlobalHeader FAR1* globalHeader = (ExbGlobalHeader FAR1*)buf;
FirmwareHeader FAR1* firmwareHeader = (FirmwareHeader FAR1*)
flAddLongToFarPointer(buf,sizeof(ExbGlobalHeader));
/* Make sure size given is big enough */
if (bufLen < sizeof(FirmwareHeader) * LE4(globalHeader->noOfFirmwares) +
sizeof(ExbGlobalHeader))
{
DFORMAT_PRINT(("ERROR - Buffer size not big enough.\r\n"));
return flBadLength;
}
/* Make sure this is an M-systems EXB file */
if (tffscmp(globalHeader->mSysSign,SIGN_MSYS,SIGN_MSYS_SIZE) != 0)
{
DFORMAT_PRINT(("ERROR - Given file is not M-systems EXB file.\r\n"));
return flBadParameter;
}
i = (exbFlags & FIRMWARE_NO_MASK) >> FIRMWARE_NO_SHIFT;
if(i == 0)
{
/* Make sure this is the correct version of TrueFFS */
if (tffscmp(globalHeader->osakVer,TrueFFSVersion,SIGN_MSYS_SIZE) != 0)
{
DFORMAT_PRINT(("ERROR - Incorrect TrueFFS EXB file version.\r\n"));
return flBadParameter;
}
/* Find the corrent firmware in the file */
/* Automatic firmware detection - by DiskOnChip type */
switch (vol.flash->mediaType)
{
case DOC_TYPE:
case MDOC_TYPE:
mediaType = DOC2000_FAMILY_FIRMWARE;
break;
case MDOCP_TYPE:
case MDOCP_16_TYPE:
mediaType = DOCPLUS_FAMILY_FIRMWARE;
break;
case DOC2000TSOP_TYPE:
mediaType = DOC2300_FAMILY_FIRMWARE;
break;
default:
DFORMAT_PRINT(("Unknown H/W - Try specifing the firmware manualy.\r\n"));
return flFeatureNotSupported;
}
for (i=0;i<LE4(globalHeader->noOfFirmwares);i++,firmwareHeader++)
{
if (LE4(firmwareHeader->type) == mediaType)
break;
}
}
else /* Use given firmware */
{
i--; /* 0 was used for automatic choose of firmware */
}
if (i >= LE4(globalHeader->noOfFirmwares))
{
DFORMAT_PRINT(("ERROR - The EXB file does not support the required firmware.\r\n"));
return flBadParameter;
}
/* Initialize the volumes EXB fields */
firmwareHeader = (FirmwareHeader FAR1*)flAddLongToFarPointer(buf,
(sizeof(ExbGlobalHeader) + (i * sizeof(FirmwareHeader))));
i = &vol - vols;
/* Save firmware files statstics recieved from the files header */
exbs[i].firmwareStart = LE4(firmwareHeader->startOffset);
exbs[i].firmwareEnd = LE4(firmwareHeader->endOffset);
exbs[i].splStart = LE4(firmwareHeader->splStartOffset);
exbs[i].splEnd = LE4(firmwareHeader->splEndOffset);
exbs[i].exbFileEnd = LE4(globalHeader->fileSize);
/* Calculate the binary partition size (good bytes) used to
hold the EXB file. */
exbs[i].iplMod512 = (word)((exbs[i].splStart - exbs[i].firmwareStart)
>> SECTOR_SIZE_BITS);
switch (vol.flash->mediaType)
{
/* NFTL formated device - IPL is placed on the binary partition */
case DOC_TYPE:
/* Size of EXB minus IPL which is placed in ROM */
vol.binaryLength = exbs[i].firmwareEnd - exbs[i].splStart + 0x4000;
break;
case MDOC_TYPE: /* Millennium 8, write data as is */
/* Size of entire EXB */
vol.binaryLength = exbs[i].firmwareEnd - exbs[i].firmwareStart;
break;
/* INFTL formated device - IPL is not placed on the binary
partition, but on a dedicated flash area */
case DOC2000TSOP_TYPE: /* DOC2000 TSOP */
case MDOCP_TYPE: /* MDOC PLUS 32MB */
case MDOCP_16_TYPE: /* MDOC PLUS 16MB */
vol.binaryLength = exbs[i].firmwareEnd - exbs[i].splStart;
break;
default :
DFORMAT_PRINT(("ERROR - Firmware formater reports A None DiskOnChip media.\r\n"));
return flBadParameter;
}
return flOK;
}
FLStatus check43Format(FLFlash *flash)
{
FLStatus status;
byte FAR1* buf;
/* If this is an alon */
if (flash->mediaType != DOC2000TSOP_TYPE)
return flOK;
buf = (flBufferOf(flSocketNoOf(flash->socket))->flData);
if(flash->readBBT == NULL)
{
DFORMAT_PRINT(("ERROR : MTD read BBT routine was not initialized\r\n"));
return flFeatureNotSupported;
}
status = flash->readBBT(flash,0,1,0,buf,FALSE);
if (status == flBadBBT)
{
dword mediaSize = ((dword)flash->noOfChips*flash->chipSize);
dword blockSize = 1<<flash->erasableBlockSizeBits;
dword addr = 0;
dword offset;
word mediaHeaderBlock; /* ANAND unit number */
byte blocksPerUnit; /* Blocks per virtual unit */
byte blockShift; /* Bits to shift from block to unit */
CHECK_UNIT_WITH_ANAND:
/* Either virgin or formated wih TrueFFS 4.3 */
for( ; addr < mediaSize ; addr += blockSize)
{
checkStatus(flash->read(flash,addr,buf,5,0));
if(tffscmp(buf,"ANAND",5) == 0)
break;
}
if (addr == mediaSize) /* virgin card */
return flOK;
DFORMAT_PRINT(("This DiskOnChip was formated with an NFTL format.\r\n"));
/* Calculate block multiplier bits */
for (offset = addr + SECTOR_SIZE , status = flOK;
(offset < addr + blockSize) && (status == flOK) ;
offset += SECTOR_SIZE)
{
status = flash->read(flash,addr+offset,buf,512,EDC);
}
if(offset == addr + (SECTOR_SIZE<<1)) /* Bad EDC for NFTL unit header */
{
DFORMAT_PRINT(("ERROR - Unit with ANAND was found, but the BBT has bad EDC.\r\n"));
addr += blockSize;
goto CHECK_UNIT_WITH_ANAND; /* Keep searching */
}
offset = (offset - addr - (SECTOR_SIZE<<1)) << flash->erasableBlockSizeBits;
for(blockShift = 0 ; offset < mediaSize ; blockShift++)
{
offset <<= 1;
}
blocksPerUnit = 1 << blockShift;
mediaHeaderBlock = (word)(addr >> (flash->erasableBlockSizeBits + blockShift));
DFORMAT_PRINT(("Please wait while unformating is in progress...\r\n"));
/* Read and write 512 blocks of the BBT (start from the end) */
for (offset = 0;
offset < mediaSize>>(flash->erasableBlockSizeBits + blockShift);
offset += SECTOR_SIZE)
{
word i;
checkStatus(flash->read(flash,addr+offset+SECTOR_SIZE,buf,SECTOR_SIZE,EDC));
for(i=0;i<SECTOR_SIZE;i++)
{
if (i+offset == mediaHeaderBlock)
continue;
if (buf[i]==BBT_BAD_UNIT) /* A bad block */
{
markUnitBad(flash , i+offset);
}
else /* A good block */
{
status = flash->erase(flash,(word)(i+offset),blocksPerUnit);
if (status != flOK)
markUnitBad(flash , i+offset);
}
}
}
status = flash->erase(flash,mediaHeaderBlock,blocksPerUnit);
if (status != flOK)
markUnitBad(flash , mediaHeaderBlock);
DFORMAT_PRINT(("Unformating of DiskOnChip 2000 tsop complete.\r\n"));
}
