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/*
* drivers/block/sun4i_nand/nfd/mbr.h
*
* (C) Copyright 2007-2012
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __MBR_H__
#define __MBR_H__
#include "types.h"
#define MAX_PART_COUNT 15 //max part count
#define MBR_COPY_NUM 4 //mbr backup count
#define MBR_START_ADDRESS 0x0 //mbr start address
#define MBR_SIZE 1024 //mbr size
#define MBR_RESERVED (MBR_SIZE - 20 - (MAX_PART_COUNT * 64)) //mbr reserved space
// extern struct __NandDriverGlobal_t NandDriverInfo;
// extern struct __NandStorageInfo_t NandStorageInfo;
#define DiskSize (SECTOR_CNT_OF_SINGLE_PAGE * PAGE_CNT_OF_PHY_BLK * BLOCK_CNT_OF_DIE * \
DIE_CNT_OF_CHIP * NandStorageInfo.ChipCnt / 1024 * DATA_BLK_CNT_OF_ZONE)
struct nand_disk{
unsigned long size;
unsigned long offset;
unsigned char type;
};
/* part info */
typedef struct tag_PARTITION{
__u32 addrhi; //start address high 32 bit
__u32 addrlo; //start address low 32 bit
__u32 lenhi; //size high 32 bit
__u32 lenlo; //size low 32 bit
__u8 classname[12]; //major device name
__u8 name[12]; //minor device name
unsigned int user_type; //标志当前盘符所属于的用户
unsigned int ro; //标志当前盘符的读写属性
__u8 res[16]; //reserved
}PARTITION;
/* mbr info */
typedef struct tag_MBR{
__u32 crc32; // crc, from byte 4 to mbr tail
__u32 version; // version
__u8 magic[8]; // magic number
__u8 copy; // mbr backup count
__u8 index; // current part no
__u16 PartCount; // part counter
PARTITION array[MAX_PART_COUNT];// part info
__u8 res[MBR_RESERVED]; // reserved space
}MBR;
int mbr2disks(struct nand_disk* disk_array);
#endif //__MBR_H__
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