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fatfsparse.py: add cluster chaining support to enable reading longer-than-sector files

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Closes IDF-4975
This commit is contained in:
Martin Gano
2022-04-04 15:33:00 +02:00
committed by Martin Gaňo
parent 64b6733349
commit 8ef66536ed
18 changed files with 368 additions and 62 deletions
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17
components/fatfs/fatfs_utils/fatfs_parser.py Normal file
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# SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
# SPDX-License-Identifier: Apache-2.0
from .boot_sector import BootSector
from .utils import read_filesystem
class FATFSParser:
def __init__(self, image_file_path: str, wl_support: bool = False) -> None:
if wl_support:
raise NotImplementedError('Parser is not implemented for WL yet.')
self.fatfs = read_filesystem(image_file_path)
# when wl is not supported we expect boot sector to be the first
self.parsed_header = BootSector.BOOT_SECTOR_HEADER.parse(self.fatfs[:BootSector.BOOT_HEADER_SIZE])
print(BootSector)