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20bd5ac6e4
Add a code for creating and writing MBR partition layout. The code generates similar layout of EBRs (Exteneded Block Records) and logical volumes as Linux's fdisk utility. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#ifndef _DISK_PART_DOS_H
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#define _DISK_PART_DOS_H
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#define DOS_PART_DISKSIG_OFFSET 0x1b8
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#define DOS_PART_TBL_OFFSET 0x1be
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#define DOS_PART_MAGIC_OFFSET 0x1fe
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#define DOS_PBR_FSTYPE_OFFSET 0x36
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#define DOS_PBR32_FSTYPE_OFFSET 0x52
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#define DOS_PBR_MEDIA_TYPE_OFFSET 0x15
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#define DOS_MBR 0
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#define DOS_PBR 1
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#define DOS_PART_TYPE_EXTENDED 0x05
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#define DOS_PART_TYPE_EXTENDED_LBA 0x0F
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#define DOS_PART_TYPE_EXTENDED_LINUX 0x85
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#define DOS_PART_DEFAULT_GAP 2048
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typedef struct dos_partition {
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unsigned char boot_ind; /* 0x80 - active */
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unsigned char head; /* starting head */
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unsigned char sector; /* starting sector */
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unsigned char cyl; /* starting cylinder */
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unsigned char sys_ind; /* What partition type */
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unsigned char end_head; /* end head */
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unsigned char end_sector; /* end sector */
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unsigned char end_cyl; /* end cylinder */
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unsigned char start4[4]; /* starting sector counting from 0 */
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unsigned char size4[4]; /* nr of sectors in partition */
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} dos_partition_t;
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#endif /* _DISK_PART_DOS_H */
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