/*
 * fsDisk.h --
 *
 *	Definitions for utilities that examine a filesystem through
 *	a raw disk interface.
 */

#ifndef _FSUSERDISK
#define _FSUSERDISK

#include "kernel/fs.h"
#include "kernel/dev.h"
#include "kernel/fsdm.h"
#include "kernel/devDiskLabel.h"

/*
 * These should be here.  They should be in some machine dependent header
 * file.  But for now ...
 */
#define BITS_PER_BYTE           8
#define BITS_PER_INT            32

/*
 * DISK_SECTORS_PER_BLOCK	Number of disk sectors per file system block.
 * DISK_KBYTES_PER_BLOCK	Number of kbyte chunks per file system block.
 */
#define DISK_SECTORS_PER_BLOCK       (FS_BLOCK_SIZE / DEV_BYTES_PER_SECTOR)
#define DISK_KBYTES_PER_BLOCK        (FS_BLOCK_SIZE / 1024)

typedef struct Disk_Info {
    int firstCylinder;  /* First physical cylinder of the partition */
    int numCylinders;   /* Number of cylinders in the partition */
    int numHeads;       /* Number of heads on the disk */
    int numSectors;     /* Number of sectors per track */
    int domainSector;   /* Sector offset of Fsdm_DiskHeader information */
    int numDomainSectors;       /* Size of the Fsdm_DiskHeader information */
    int bootSector;     /* Sector offset of boot program */
    int numBootSectors; /* Size of the boot program */
    int summarySector;  /* Sector offset of the summary sector */
    char asciiLabel[128];       /* Copy of ascii disk label */
} Disk_Info;

/*
 * Forward Declarations.
 */
Disk_Info		*Disk_ReadDiskInfo();
Dec_DiskLabel		*Disk_ReadDecLabel();
Sun_DiskLabel		*Disk_ReadSunLabel();
Fsdm_DiskHeader		*Disk_ReadDiskHeader();
Fsdm_SummaryInfo	*Disk_ReadSummaryInfo();
int			Disk_WriteSummaryInfo();
void			Disk_PrintDomainHeader();
void			Disk_PrintSummaryInfo();
int			Disk_BlockWrite();
int			Disk_SectorWrite();
int			Disk_BlockRead();
int			Disk_SectorRead();
int			Disk_BadBlockRead();

#endif FILESYSTEM