isfshax/stage2/isfs/isfshax.h

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2021-05-26 01:53:11 +02:00
/*
* isfshax.h
*
* Copyright (C) 2021 rw-r-r-0644 <rwrr0644@gmail.com>
*
* This code is licensed to you under the terms of the GNU GPL, version 2;
* see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
#pragma once
#include "types.h"
#include "nand.h"
#include "isfs/isfs.h"
#define ISFSHAX_MAGIC 0x48415858
#define ISFSHAX_REDUNDANCY (1 << 2)
#define ISFSHAX_GENERATION_FIRST 0xffff7fff
#define ISFSHAX_GENERATION_RANGE 0x100
#define ISFSHAX_BAD_SLOT 0x80
typedef struct isfshax_info
{
u32 magic;
u8 slots[ISFSHAX_REDUNDANCY];
u32 generation;
u32 generationbase;
u32 index;
} isfshax_info;
_Static_assert(sizeof(isfshax_info) == 0x14, "isfshax_info must be 0x14");
typedef struct isfshax_super
{
char magic[4];
u32 generation;
u32 x1;
u16 fat[CLUSTER_COUNT];
isfs_fst fst[6143];
isfshax_info isfshax;
} PACKED ALIGNED(NAND_DATA_ALIGN) isfshax_super;
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_Static_assert(sizeof(isfshax_super) == ISFSSUPER_SIZE, "isfshax_super must be 0x40000");
int isfshax_refresh();