94 lines
4.2 KiB
C
94 lines
4.2 KiB
C
/*****************************************************************************\
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* efs - General purpose Embedded Filesystem library *
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* --------------------- ----------------------------------- *
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* *
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* Filename : disc.h *
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* Description : This is the header file for disc.c *
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* *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; version 2 *
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* of the License. *
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*
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* As a special exception, if other files instantiate templates or *
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* use macros or inline functions from this file, or you compile this *
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* file and link it with other works to produce a work based on this file, *
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* this file does not by itself cause the resulting work to be covered *
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* by the GNU General Public License. However the source code for this *
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* file must still be made available in accordance with section (3) of *
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* the GNU General Public License. *
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* *
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* This exception does not invalidate any other reasons why a work based *
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* on this file might be covered by the GNU General Public License. *
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* *
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* (c)2006 Lennart Yseboodt *
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* (c)2006 Michael De Nil *
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\*****************************************************************************/
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#ifndef __DISC_H_
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#define __DISC_H_
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/*****************************************************************************/
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#include "config.h"
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#include "error.h"
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#include "interface.h"
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#include "ioman.h"
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#include "types.h"
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#include "debug.h"
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/*****************************************************************************/
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#define LBA_ADDR_MBR 0
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#define PARTITION_TABLE_OFFSET 0x1BE
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/**********************************************************\
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PartitionField
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------------
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* uchar type Type of partition
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* ulong LBA_begin LBA address of first sector.
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* ulong numSectors Number of 512byte sectors
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This structure is a literal representation of a 16 byte
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partitionfield. Direct I/O is possible.
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(mthomas reminder: for non-bytealigned the "byte array"
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is converted to the struct with extract.c/ex_getPartitionField
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-> "packed" not needed)
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\**********************************************************/
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struct PartitionField{
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euint8 bootFlag;
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euint8 CHS_begin[3];
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euint8 type;
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euint8 CHS_end[3];
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euint32 LBA_begin;
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euint32 numSectors;
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};
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typedef struct PartitionField PartitionField;
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#define SIZE_PARTITION_FIELD 16
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/***************************************************************************************\
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Disc
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--
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* CompactFlash* sourcedisc Pointer to the hardwareobject that this disc is on.
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* PartitionField* partitions Array of PartitionFields, containing the partition info
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\***************************************************************************************/
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struct Disc{
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IOManager *ioman;
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DISC_ERR_EUINT8
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PartitionField partitions[4];
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};
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typedef struct Disc Disc;
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void disc_initDisc(Disc *disc,IOManager *ioman);
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void disc_loadMBR(Disc *disc);
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#include "extract.h"
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#endif
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