//
// $Header: D:/ext2-os2/include/os2/RCS/os2misc.h,v 1.2 1995/08/08 21:18:11 Willm Exp Willm $
//

// Linux ext2 file system driver for OS/2 2.x and WARP - Allows OS/2 to     
// access your Linux ext2fs partitions as normal drive letters.
// OS/2 implementation : Copyright (C) 1995  Matthieu WILLM
//
// 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 2 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, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.



#ifndef __OS2MISC_H
#define __OS2MISC_H

#pragma pack(1)

//
// Global infoseg
//
typedef struct {
    UINT32 time;       /* Time in seconds since 1/1/1970 */
    UINT32 millisec;
} sysinfoseg;
typedef sysinfoseg _FS_PTR psysinfoseg;

//
// Structure for FSH_QSYSINFO
//
typedef struct {
    unsigned short pid;
    unsigned short uid;
    unsigned short pdb;
} id_t;


// 
// Extended Boot record structure and extended BPB (from the IBM IFS document)
//
struct Extended_BPB {
    unsigned short BytePerSector;
    unsigned char SectorPerCluster;
    unsigned short ReservedSectors;
    unsigned char NumberOfFats;
    unsigned short RootEntries;
    unsigned short TotalSectors;
    unsigned char MediaDescriptor;
    unsigned short SectorsPerFat;
    unsigned short SectorsPerTrack;
    unsigned short Heads;
    unsigned long HiddenSectors;
    unsigned long Ext_TotalSectors;
};

struct Extended_Boot {
    unsigned char Boot_jmp[3];
    unsigned char Boot_OEM[8];
    struct Extended_BPB Boot_BPB;
    unsigned char Boot_DriveNumber;
    unsigned char Boot_CurrentHead;
    unsigned char Boot_Sig;
    unsigned long Boot_Serial;
    unsigned char Boot_Vol_Label[11];
    unsigned char Boot_System_ID[8];
};


#pragma pack()

extern psysinfoseg  psys;

extern int Read_Write;


#endif