nuttx/fs/mnemofs/mnemofs_rw.c
Saurav Pal 6f0daf08eb fs/mnemofs: Adds Block Allocator
Adds Block Allocator logic to mnemofs.

Signed-off-by: Saurav Pal <resyfer.dev@gmail.com>
2024-07-10 18:40:47 -03:00

113 lines
4.7 KiB
C

/****************************************************************************
* fs/mnemofs/mnemofs_rw.c
* Read/Write utilities for mnemofs
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
* Alternatively, the contents of this file may be used under the terms of
* the BSD-3-Clause license:
*
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2024 Saurav Pal
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of its contributors may
* be used to endorse or promote products derived from this software
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include "mnemofs.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
int mfs_isbadblk(FAR const struct mfs_sb_s * const sb, mfs_t blk)
{
return MTD_ISBAD(MFS_MTD(sb), blk);
}
int mfs_markbadblk(FAR const struct mfs_sb_s * const sb, mfs_t blk)
{
return MTD_ISBAD(MFS_MTD(sb), blk);
}
ssize_t mfs_read_page(FAR const struct mfs_sb_s * const sb,
FAR char *data, const mfs_t datalen, const off_t page,
const mfs_t pgoff)
{
return OK;
}
int mfs_erase_blk(FAR const struct mfs_sb_s * const sb, const off_t blk)
{
return MTD_ERASE(MFS_MTD(sb), blk, 1);
}
int mfs_erase_nblks(FAR const struct mfs_sb_s * const sb, const off_t blk,
const size_t n)
{
return MTD_ERASE(MFS_MTD(sb), blk, n);
}