/*
 *  * Copyright 2000-2009
 *   * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *    *
 *     * SPDX-License-Identifier:	GPL-2.0+
 *     */
#ifndef __DOS_PART_H_
#define __DOS_PART_H_

//标准分区信息
#pragma pack(push, 1)
typedef struct tag_part_info_stand {
	char indicator; //表示该分区是否是活动分区
	char start_head; //分区开始的磁头
	short start_sector : 6; //分区开始的扇区
	short start_cylinder : 10; //分区开始的柱面
	char part_type; //分区类型			00H:没有指明  01H:DOS12	02H:xenix	04H:DOS16 05H:扩展分区	06H:FAT16
	//					07H:NTFS	  0BH:FAT32
	char end_head; //分区结束的磁头
	short end_sector : 6; //分区结束的扇区
	short end_cylinder : 10; //分区结束的柱面
	//int					start_sectors;		//起始扇区，前面说的扇区是硬盘的概念，这里的扇区是逻辑概念
	//int					total_sectors;		//分区中的扇区总数
	short start_sectorl;
	short start_sectorh;
	short total_sectorsl;
	short total_sectorsh;
} part_info_stand;
#pragma pack(pop)

//标准MBR
#pragma pack(push, 1)
typedef struct tag_mbr_stand {
	char mbr[0x89]; //主引导记录
	char err_info[0x135]; //出错信息
	part_info_stand part_info[4]; //分区表项
	short end_flag; //固定值 0x55aa
} mbr_stand;
#pragma pack(pop)

#endif /* __BOOT_STANDBY_H_ */
