diskpart.h

ST5518机顶盒系统文件系统源代码！绝对超值！

/******************************************************************************

File Name : partitio.h

Description: Partition table management

******************************************************************************/

#ifndef  DISK_PARTITION_H
#define  DISK_PARTITION_H

    /* Includes ------------------------------------------------------------ */
    
#include "avdevice.h"

    /* Exported Types ------------------------------------------------------ */

/* This structure defines the layout of the partition table
   in the first sector on disk */
typedef struct
{
    char Active;      /* Flags the active partition */
    char StartCHS[3]; /* Start sector in CHS (not used) */
    char Type;        /* 0x00 - unused 0xE0 - avfs partition */
    char SizeCHS[3];  /* Size of part in CHS (not used) */
    U32  StartLBA;    /* Start sector in LBA format */
    U32  SizeLBA;     /* Size of the partition in sectors */
} stavfs_DiskPartitionTable_t;

    /* Exported Constants -------------------------------------------------- */

#define AVFS_PARTITION    (0XE0)      /* Partition type (Magic number) */

#define NUM_OF_PARTITIONS    (4)      /* Number of Partitions */

#define BOOT_LOADER_SIZE   (446)      /* The PC boot loader consumes the
                                        first 446 bytes on a disk */

    /* Exported Variables -------------------------------------------------- */

    /* Exported Macros ----------------------------------------------------- */

    /* Exported Function Prototypes ---------------------------------------- */

ST_ErrorCode_t stavfs_ReadPartitionTable  (stavfs_Device_t *Device_p, stavfs_DiskPartitionTable_t *PartitionInfo);
ST_ErrorCode_t stavfs_WritePartitionTable (stavfs_Device_t *Device_p, stavfs_DiskPartitionTable_t *PartitionInfo);
ST_ErrorCode_t stavfs_SetThePartitionEntry(stavfs_Device_t *Device_p,  U64 const *Position_p, U64 *SpaceInSectors_p);


#endif