117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
/****************************************************************************
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* fs/nxffs/nxffs_ioctl.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <string.h>
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#include <assert.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/fs/fs.h>
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#include <nuttx/fs/ioctl.h>
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#include <nuttx/mtd/mtd.h>
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#include "nxffs.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxffs_ioctl
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*
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* Description:
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* Standard mountpoint ioctl method.
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*
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****************************************************************************/
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int nxffs_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
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{
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FAR struct nxffs_volume_s *volume;
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int ret;
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finfo("cmd: %d arg: %08lx\n", cmd, arg);
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/* Sanity checks */
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DEBUGASSERT(filep->f_priv != NULL && filep->f_inode != NULL);
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/* Recover the file system state from the open file */
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volume = filep->f_inode->i_private;
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DEBUGASSERT(volume != NULL);
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/* Get exclusive access to the volume. Note that the volume lock
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* protects the open file list.
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*/
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ret = nxmutex_lock(&volume->lock);
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if (ret < 0)
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{
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ferr("ERROR: nxmutex_lock failed: %d\n", ret);
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goto errout;
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}
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/* Only a reformat and optimize commands are supported */
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if (cmd == FIOC_REFORMAT)
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{
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finfo("Reformat command\n");
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/* We cannot reformat the volume if there are any open inodes */
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if (volume->ofiles)
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{
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ferr("ERROR: Open files\n");
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ret = -EBUSY;
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goto errout_with_lock;
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}
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/* Re-format the volume -- all is lost */
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ret = nxffs_reformat(volume);
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}
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else if (cmd == FIOC_OPTIMIZE)
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{
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finfo("Optimize command\n");
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/* Pack the volume */
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ret = nxffs_pack(volume);
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}
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else
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{
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/* Command not recognized, forward to the MTD driver */
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ret = MTD_IOCTL(volume->mtd, cmd, arg);
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}
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errout_with_lock:
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nxmutex_unlock(&volume->lock);
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errout:
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return ret;
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}
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