42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
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/*
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* * Copyright 2000-2009
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* * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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* *
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* * SPDX-License-Identifier: GPL-2.0+
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* */
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#ifndef __DOS_PART_H_
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#define __DOS_PART_H_
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//标准分区信息
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#pragma pack(push, 1)
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typedef struct tag_part_info_stand {
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char indicator; //表示该分区是否是活动分区
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char start_head; //分区开始的磁头
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short start_sector : 6; //分区开始的扇区
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short start_cylinder : 10; //分区开始的柱面
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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
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// 07H:NTFS 0BH:FAT32
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char end_head; //分区结束的磁头
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short end_sector : 6; //分区结束的扇区
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short end_cylinder : 10; //分区结束的柱面
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//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
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//int total_sectors; //分区中的扇区总数
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short start_sectorl;
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short start_sectorh;
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short total_sectorsl;
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short total_sectorsh;
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} part_info_stand;
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#pragma pack(pop)
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//标准MBR
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#pragma pack(push, 1)
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typedef struct tag_mbr_stand {
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char mbr[0x89]; //主引导记录
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char err_info[0x135]; //出错信息
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part_info_stand part_info[4]; //分区表项
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short end_flag; //固定值 0x55aa
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} mbr_stand;
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#pragma pack(pop)
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#endif /* __BOOT_STANDBY_H_ */
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