E_NANDERRORCODE Nand_ReadSector_Exnftl(T_PNANDFLASH pNand, T_U32 nChip, T_U32 nPlaneCnt, T_U32 nBlock, T_U32 nPage, T_U8 *pMain, T_U8 *pAdd , T_U32 nAddLen, T_U32 nPageCnt)
{
E_NANDERRORCODE ret;
T_U32 i;
for(i = 0; i < nPageCnt; i++)
{
ret = Read_Page(nChip, nBlock, nPage, pMain, pAdd, nAddLen, AREA_FSA);
if(NF_FAIL == ret)
{
goto L_EXIT;
}
nPage++;
pMain += g_nPageSize;
pAdd += nAddLen;
}
L_EXIT:
return ret;
}
E_NANDERRORCODE Nand_ReadSector(T_PNANDFLASH pNand, T_U32 nChip, T_U32 nBlock, T_U32 nPage, T_U8 *pMain, T_U8 *pAdd , T_U32 nAddLen)
{
return Read_Page(nChip, nBlock, nPage, pMain, pAdd, nAddLen, ASA_ADD_LEN == nAddLen ? AREA_ASA : AREA_FSA);
}
//----------------------------------------------------------------------
// ExtRead, reads extended file structure files. It is designed such
// that if a file is contiguous then it is not reset between the reading
// of each page packet. The bitmap BM has a page bit cleared when a
// page is read correctly. The varialbe maxlen is the max number of
// bytes that can be fit into the buffer 'buf'. If maxlen is set to
// -1 then the file is read but it is not copied over into buf.
//
// portnum the port number of the port being used for the
// 1-Wire Network.
// SNum the serial number for the part that the read is
// to be done on.
// file location of the file to write
// start_page the starting page for the file
// maxlen the maximum length the file buffer can handle
// del tell weather to delete the file or not.
// BM the bitmap
// fl_len the length of the file that was read
//
// return TRUE if the read was successful
//
SMALLINT ExtRead(int portnum, uchar *SNum, uchar *file, int start_page,
int maxlen, uchar del, uchar *BM, int *fl_len)
{
SMALLINT bank;
int done = FALSE;
int buff_len = 0;
PAGE_TYPE pg;
uchar pgbuf[34];
int len = 0;
int i;
int flag;
pg = start_page;
// loop to read in pages of the extended file
do
{
if(!Read_Page(portnum,SNum,&pgbuf[0],REGMEM,&pg,&len))
return FALSE;
// add page segment to buffer
if (maxlen != -1) // don't add to buff in maxlen is -1
{
if((buff_len+len) > maxlen)
{
OWERROR(OWERROR_BUFFER_TOO_SMALL);
return FALSE;
}
for(i=0;i<(len-1);i++)
file[buff_len++] = pgbuf[i];
}
bank = getBank(portnum,SNum,pg,REGMEM);
// flag to indicate that the page should be cleared in the BM
flag = FALSE;
// do if have a NVRAM device
if(owIsReadWrite(bank,portnum,SNum) &&
owIsGeneralPurposeMemory(bank,SNum))
flag = TRUE;
// or non written buffered eprom page
if(isJob(portnum,SNum))
{
// see if page set to write but has not started yet
if(isJobWritten(portnum,SNum,pg) && del)
{
flag = TRUE;
}
}
// clear bit in bitmap
if(flag)
{
if(!BitMapChange(portnum,SNum,pg,0,BM))
return FALSE;
}
// check on continuation pointer
if (pgbuf[len-1] == 0)
{
*fl_len = buff_len;
done = TRUE; // all done
}
else
pg = pgbuf[len-1];
}
while(!done);
return TRUE;
}
