alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-09 20:41:14 +00:00
Code Issues Packages Projects Releases Wiki Activity

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

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

17
components/fatfs/fatfs_utils/utils.py
View File

@@ -1,4 +1,4 @@
# SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
# SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
# SPDX-License-Identifier: Apache-2.0
import argparse
@@ -68,8 +68,8 @@ def number_of_clusters(number_of_sectors: int, sectors_per_cluster: int) -> int:
return number_of_sectors // sectors_per_cluster
def get_non_data_sectors_cnt(reserved_sectors_cnt: int, sectors_per_fat_cnt: int, root_dir_sectors_cnt: int) -> int:
return reserved_sectors_cnt + sectors_per_fat_cnt + root_dir_sectors_cnt
def get_non_data_sectors_cnt(reserved_sectors_cnt: int, sectors_per_fat_cnt: int, fat_tables_cnt: int, root_dir_sectors_cnt: int) -> int:
return reserved_sectors_cnt + sectors_per_fat_cnt * fat_tables_cnt + root_dir_sectors_cnt
def get_fatfs_type(clusters_count: int) -> int:
@@ -203,9 +203,14 @@ def get_args_for_partition_generator(desc: str, wl: bool) -> argparse.Namespace:
type=int,
choices=[FAT12, FAT16, 0],
help="""
Type of fat. Select 12 for fat12, 16 for fat16. Don't set, or set to 0 for automatic
calculation using cluster size and partition size.
Type of the FAT file-system. Select '12' for FAT12, '16' for FAT16.
Leave unset or select 0 for automatic file-system type detection.
""")
parser.add_argument('--fat_count',
default=FATDefaults.FAT_TABLES_COUNT,
type=int,
choices=[1, 2],
help='Number of file allocation tables (FATs) in the filesystem.')
args = parser.parse_args()
if args.fat_type == 0:
@@ -276,7 +281,7 @@ class FATDefaults:
# FATFS defaults
SIZE: int = 1024 * 1024
RESERVED_SECTORS_COUNT: int = 1
FAT_TABLES_COUNT: int = 1
FAT_TABLES_COUNT: int = 2
SECTORS_PER_CLUSTER: int = 1
SECTOR_SIZE: int = 0x1000
HIDDEN_SECTORS: int = 0