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feat(fatfs): Add an option to use 2 FATs (file allocation tables) in FATFS volumes

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Should help with redundancy and data corruption when enabled but uses more space.
This commit is contained in:
Adam Múdry
2024-01-15 01:34:02 +01:00
parent 813dbe5526
commit 8e50d63fea
15 changed files with 697 additions and 104 deletions
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7
components/fatfs/fatfs_utils/boot_sector.py
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@@ -1,4 +1,4 @@
# SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
# SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
# SPDX-License-Identifier: Apache-2.0
from inspect import getmembers, isroutine
from typing import Optional
@@ -64,12 +64,13 @@ class BootSector:
raise NotInitialized('The BootSectorState instance is not initialized!')
volume_uuid = generate_4bytes_random()
pad_header: bytes = (boot_sector_state.sector_size - BootSector.BOOT_HEADER_SIZE) * EMPTY_BYTE
data_content: bytes = boot_sector_state.data_sectors * boot_sector_state.sector_size * FULL_BYTE
root_dir_content: bytes = boot_sector_state.root_dir_sectors_cnt * boot_sector_state.sector_size * EMPTY_BYTE
fat_tables_content: bytes = (boot_sector_state.sectors_per_fat_cnt
* boot_sector_state.fat_tables_cnt
* boot_sector_state.sector_size
* EMPTY_BYTE)
root_dir_content: bytes = boot_sector_state.root_dir_sectors_cnt * boot_sector_state.sector_size * EMPTY_BYTE
data_content: bytes = boot_sector_state.data_sectors * boot_sector_state.sector_size * FULL_BYTE
self.boot_sector_state.binary_image = (
BootSector.BOOT_SECTOR_HEADER.build(
dict(BS_jmpBoot=(b'\xeb\xfe\x90'),