mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
e181a40c9f
This is a breaking change: applications which used diskio.h to call ff_diskio_register, will now need to include diskio_impl.h. Including diskio.h will include the original diskio.h header from FatFS library.
31 lines
1.1 KiB
C
31 lines
1.1 KiB
C
// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#pragma once
|
|
|
|
#include "esp_vfs_fat.h"
|
|
#include <sys/param.h>
|
|
#include <stddef.h>
|
|
|
|
static inline size_t esp_vfs_fat_get_allocation_unit_size(
|
|
size_t sector_size, size_t requested_size)
|
|
{
|
|
size_t alloc_unit_size = requested_size;
|
|
const size_t max_sectors_per_cylinder = 128;
|
|
const size_t max_size = sector_size * max_sectors_per_cylinder;
|
|
alloc_unit_size = MAX(alloc_unit_size, sector_size);
|
|
alloc_unit_size = MIN(alloc_unit_size, max_size);
|
|
return alloc_unit_size;
|
|
}
|