zfsdef.h

zilog的实时操作系统RZK,可以移植到多种处理器上

/*
 * File       : zfsdef.h
 * Description: This file contains the data types for the ZiLOG File System
 * Author     : Mahadev K C
 * Created on : 30-APR-2003
 *
 * Copyright 2002 ZiLOG Inc.  ALL RIGHTS RESERVED.
 *
 * This file contains unpublished confidential and proprietary information
 * of ZiLOG, Inc.
 * NO PART OF THIS WORK MAY BE DUPLICATED, STORED, PUBLISHED OR DISCLOSED 
 * IN ANY FORM WITHOUT THE PRIOR WRITTEN CONSENT OF ZiLOG, INC.
 * This is not a license and no use of any kind of this work is authorized
 * in the absence of a written license granted by ZiLOG, Inc. in ZiLOG's 
 * sole discretion 
 */

#ifndef _ZFSDEF_H_
#define _ZFSDEF_H_

// different sector types
#define ZFS_SEC_TYPE_FIT	((UINT8)(0x01))
#define ZFS_SEC_TYPE_DATA	((UINT8)(0x02))
#define ZFS_SEC_TYPE_AB		((UINT8)(0x04))
#define ZFS_SEC_TYPE_TB		((UINT8)(0x08))
#define ZFS_SEC_TYPE_NEW_AB	((UINT8)(0x10))

// sector allocated/Free/dirty
#define ZFS_SEC_FREE		((UINT8)(0x00))
#define ZFS_SEC_ALLOCATED	((UINT8)(0x01))
#define ZFS_SEC_DIRTY		((UINT8)(0x02))

// These flags are used for power-fail safe recovery mechanism algorithm
#define ZFS_SEC_DUP			((UINT8)(0x04))
#define ZFS_SEC_NO_DUP		((UINT8)(0x08))
#define ZFS_SEC_LINK_START ((UINT8)(0x01))
#define ZFS_SEC_LINK_END 	((UINT8)(0x02))

// sector allocated/deallocated
#define ZFS_FIR_FREE		((UINT8)(0x00))
#define ZFS_FIR_ALLOCATED	((UINT8)(0x01))
#define ZFS_FIR_DIRTY		((UINT8)(0x02))
	
// different file types
//#define ZFS_DIR_TYPE		((UINT8)(0x04))
//#define ZFS_FILE_TYPE		((UINT8)(0x08))

// These flags are used for power-fail safe recovery mechanism algorithm
#define ZFS_FIR_DUP			((UINT8)(0x10))
#define ZFS_FIR_NOT_DUP	((UINT8)(0x20))
#define ZFS_FIR_DIRTY_START ((UINT8)(0x40))
#define ZFS_FIR_DIRTY_STOP ((UINT8)(0x80))

// file related
//#define ZFS_FILE_BEGIN		((UINT8)(0x02))
//#define ZFS_FILE_CURRENT	((UINT8)(0x00))
//#define ZFS_FILE_END		((UINT8)(0x01))
/*
#define SEEK_CUR	0
#define SEEK_END	1
#define SEEK_SET	2
*/
// file modes
//#define ZFS_READ			((UINT8)(0x01))
//#define ZFS_WRITE			((UINT8)(0x02))
//#define ZFS_APPEND			((UINT8)(0x04))
//#define ZFS_READ_WRITE		((UINT8)(0x08))

//#define ZFS_MODE_ASCII		((UINT8)(0x00))
//#define ZFS_MODE_BINARY		((UINT8)(0x01))

#define ZFS_NOT_STARTED					(0x00)
#define ZFS_STARTED						(0x01)
#define ZFS_COMPLETED					(0x01)


//#define ZFS_MAX_FILE_NAME_SIZE	(16)

#define ZFS_MAX_FILE_DIR_IN_A_DIR	(255)

#define ZFS_OR_MAGIC_NUM			((UINT8)(0x5F))
#define ZFS_OR_INVALID_MAGIC_NUM	((UINT8)(0x00))

#define ZFS_BLOCK_MAGIC_NUM		((UINT8)(0x33))

#define ZFS_SEC_HDR_WRITTEN		((UINT16)0xFFFE)
//#define ZFS_SEC_SIZE					(512)

#endif //_ZFSDEF_H_