+++ /dev/null
-/*****************************************************************************
- * FullFAT - High Performance, Thread-Safe Embedded FAT File-System *
- * Copyright (C) 2009 James Walmsley (james@worm.me.uk) *
- * *
- * This program is free software: you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation, either version 3 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program. If not, see <http://www.gnu.org/licenses/>. *
- * *
- * IMPORTANT NOTICE: *
- * ================= *
- * Alternative Licensing is available directly from the Copyright holder, *
- * (James Walmsley). For more information consult LICENSING.TXT to obtain *
- * a Commercial license. *
- * *
- * See RESTRICTIONS.TXT for extra restrictions on the use of FullFAT. *
- * *
- * Removing the above notice is illegal and will invalidate this license. *
- *****************************************************************************
- * See http://worm.me.uk/fullfat for more information. *
- * Or http://fullfat.googlecode.com/ for latest releases and the wiki. *
- *****************************************************************************/
-
-/**
- * @file ff_blk.c
- * @author James Walmsley
- * @ingroup BLK
- *
- * @defgroup BLK Block Calculater
- * @brief Handle Block Number conversions
- *
- * Helps calculate block numbers.
- **/
-
-#include "ff_blk.h"
-/**
- * @private
- **/
-FF_T_UINT32 FF_getClusterChainNumber(FF_IOMAN *pIoman, FF_T_UINT32 nEntry, FF_T_UINT16 nEntrySize) {
- FF_PARTITION *pPart = pIoman->pPartition;
- FF_T_UINT32 clusterChainNumber = nEntry / (pIoman->BlkSize * (pPart->SectorsPerCluster * pPart->BlkFactor) / nEntrySize);
- return clusterChainNumber;
-}
-
-FF_T_UINT32 FF_getClusterPosition(FF_IOMAN *pIoman, FF_T_UINT32 nEntry, FF_T_UINT16 nEntrySize) {
- return nEntry % ((pIoman->BlkSize * (pIoman->pPartition->SectorsPerCluster * pIoman->pPartition->BlkFactor)) / nEntrySize);
-}
-/**
- * @private
- **/
-FF_T_UINT32 FF_getMajorBlockNumber(FF_IOMAN *pIoman, FF_T_UINT32 nEntry, FF_T_UINT16 nEntrySize) {
- FF_PARTITION *pPart = pIoman->pPartition;
- FF_T_UINT32 relClusterEntry = nEntry % (pIoman->BlkSize * (pPart->SectorsPerCluster * pPart->BlkFactor) / nEntrySize);
- FF_T_UINT32 majorBlockNumber = relClusterEntry / (pPart->BlkSize / nEntrySize);
- return majorBlockNumber;
-}
-/**
- * @private
- **/
-FF_T_UINT8 FF_getMinorBlockNumber(FF_IOMAN *pIoman, FF_T_UINT32 nEntry, FF_T_UINT16 nEntrySize) {
- FF_PARTITION *pPart = pIoman->pPartition;
- FF_T_UINT32 relClusterEntry = nEntry % (pIoman->BlkSize * (pPart->SectorsPerCluster * pPart->BlkFactor) / nEntrySize);
- FF_T_UINT16 relmajorBlockEntry = (FF_T_UINT16)(relClusterEntry % (pPart->BlkSize / nEntrySize));
- FF_T_UINT8 minorBlockNumber = (FF_T_UINT8) (relmajorBlockEntry / (pIoman->BlkSize / nEntrySize));
- return minorBlockNumber;
-}
-/**
- * @private
- **/
-FF_T_UINT32 FF_getMinorBlockEntry(FF_IOMAN *pIoman, FF_T_UINT32 nEntry, FF_T_UINT16 nEntrySize) {
- FF_PARTITION *pPart = pIoman->pPartition;
- FF_T_UINT32 relClusterEntry = nEntry % (pIoman->BlkSize * (pPart->SectorsPerCluster * pPart->BlkFactor) / nEntrySize);
- FF_T_UINT32 relmajorBlockEntry = (FF_T_UINT32)(relClusterEntry % (pPart->BlkSize / nEntrySize));
- FF_T_UINT32 minorBlockEntry = (FF_T_UINT32)(relmajorBlockEntry % (pIoman->BlkSize / nEntrySize));
- return minorBlockEntry;
-}
-