disk/part_dos.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * (C) Copyright 2000
   4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5  */
   6
   7 #ifndef _DISK_PART_DOS_H
   8 #define _DISK_PART_DOS_H
   9
  10 #define DOS_PART_DISKSIG_OFFSET 0x1b8
  11 #define DOS_PART_TBL_OFFSET     0x1be
  12 #define DOS_PART_MAGIC_OFFSET   0x1fe
  13 #define DOS_PBR_FSTYPE_OFFSET   0x36
  14 #define DOS_PBR32_FSTYPE_OFFSET 0x52
  15 #define DOS_PBR_MEDIA_TYPE_OFFSET       0x15
  16 #define DOS_MBR 0
  17 #define DOS_PBR 1
  18 #define DOS_PART_TYPE_EXTENDED          0x05
  19 #define DOS_PART_TYPE_EXTENDED_LBA      0x0F
  20 #define DOS_PART_TYPE_EXTENDED_LINUX    0x85
  21
  22 #define DOS_PART_DEFAULT_GAP            2048
  23
  24 typedef struct dos_partition {
  25         unsigned char boot_ind;         /* 0x80 - active                        */
  26         unsigned char head;             /* starting head                        */
  27         unsigned char sector;           /* starting sector                      */
  28         unsigned char cyl;              /* starting cylinder                    */
  29         unsigned char sys_ind;          /* What partition type                  */
  30         unsigned char end_head;         /* end head                             */
  31         unsigned char end_sector;       /* end sector                           */
  32         unsigned char end_cyl;          /* end cylinder                         */
  33         unsigned char start4[4];        /* starting sector counting from 0      */
  34         unsigned char size4[4];         /* nr of sectors in partition           */
  35 } dos_partition_t;
  36
  37 #endif  /* _DISK_PART_DOS_H */