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/*
* Copyright (c) 2018 naehrwert
* Copyright (c) 2019 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef MBR_GPT_H
#define MBR_GPT_H
#include <utils/types.h>
typedef struct _mbr_chs_t
{
u8 head;
u8 sector;
u8 cylinder;
} __attribute__((packed)) mbr_chs_t;
typedef struct _mbr_part_t
{
u8 status;
mbr_chs_t start_sct_chs;
u8 type;
mbr_chs_t end_sct_chs;
u32 start_sct;
u32 size_sct;
} __attribute__((packed)) mbr_part_t;
typedef struct _mbr_t
{
u8 bootstrap[440];
u32 signature;
u16 copy_protected;
mbr_part_t partitions[4];
u16 boot_signature;
} __attribute__((packed)) mbr_t;
typedef struct _gpt_entry_t
{
u8 type_guid[0x10];
u8 part_guid[0x10];
u64 lba_start;
u64 lba_end;
u64 attrs;
u16 name[36];
} gpt_entry_t;
typedef struct _gpt_header_t
{
u64 signature; // "EFI PART"
u32 revision;
u32 size;
u32 crc32;
u32 res1;
u64 my_lba;
u64 alt_lba;
u64 first_use_lba;
u64 last_use_lba;
u8 disk_guid[0x10];
u64 part_ent_lba;
u32 num_part_ents;
u32 part_ent_size;
u32 part_ents_crc32;
u8 res2[420]; // Used as first 3 partition entries backup for HOS.
} gpt_header_t;
typedef struct _gpt_t
{
gpt_header_t header;
gpt_entry_t entries[128];
} gpt_t;
#endif
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