ra8_fs_fat_alloc_internal.h

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#pragma once
 
#include <stdint.h>
 
#include "ra8_attributes.h"
#include "ra8_fs.h"

typedef enum : uint32_t {
  k_fs_free_unknown  = 0xFFFFFFFFU, 
  k_fs_alloc_slots   = 2U,          
  k_fs_fsinfo_absent = 0U,          
} ra8_fs_alloc_const_t;

typedef enum : uint64_t {
  k_fs_cache_empty    = 0xFFFFFFFFFFFFFFFFU, 
  k_fs_bitmap_unknown = 0xFFFFFFFFFFFFFFFFU, 
} ra8_fs_alloc_lba_const_t;

RA8_PRIV
void priv_alloc_state_bind(const ra8_fs_mount_t* m);

RA8_PRIV
void priv_alloc_state_release(const ra8_fs_mount_t* m);

RA8_PRIV
ra8_err_t priv_fat_sector_read(const ra8_fs_mount_t* m, uint64_t lba, uint8_t* buf);

RA8_PRIV
void priv_fat_sector_wrote(const ra8_fs_mount_t* m, const uint8_t* buf, uint64_t lba);

RA8_PRIV
uint32_t priv_alloc_hint_get(const ra8_fs_mount_t* m);

RA8_PRIV
void priv_alloc_hint_set(const ra8_fs_mount_t* m, uint32_t cluster);

RA8_PRIV
void priv_alloc_hint_lower(const ra8_fs_mount_t* m, uint32_t cluster);

RA8_PRIV
void priv_free_count_took(const ra8_fs_mount_t* m, uint32_t n);

RA8_PRIV
void priv_free_count_gave(const ra8_fs_mount_t* m, uint32_t n);

RA8_PRIV
uint32_t priv_free_count_peek(const ra8_fs_mount_t* m);

RA8_PRIV
void priv_free_count_cache(const ra8_fs_mount_t* m, uint32_t n);

RA8_PRIV
ra8_err_t priv_fsinfo_seed(const ra8_fs_mount_t* m);

RA8_PRIV
ra8_err_t priv_fsinfo_flush(const ra8_fs_mount_t* m);

RA8_PRIV
ra8_err_t priv_exfat_bitmap_lba(const ra8_fs_mount_t* m, uint64_t* out_lba);