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- /****************************************************************************
- * fs/driver/fs_mtdpartition.c
- *
- * Copyright (C) 2018 Pinecone Inc. All rights reserved.
- * Author: Xiang Xiao <xiaoxiang@pinecone.net>
- *
- * 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 NuttX nor the names of its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
- * COPYRIGHT OWNER 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 <nuttx/config.h>
- #include <errno.h>
- #include <nuttx/fs/fs.h>
- #include <nuttx/mtd/mtd.h>
- #include "driver/driver.h"
- #include "inode/inode.h"
- /****************************************************************************
- * Public Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: register_mtdpartition
- *
- * Description:
- * Register a mtd partition driver inode the pseudo file system.
- *
- * Input Parameters:
- * partition - The path to the partition inode
- * parent - The path to the parent inode
- * firstblock - The offset in block to the partition
- * nblocks - The number of block in the partition
- *
- * Returned Value:
- * Zero on success (with the inode point in 'inode'); A negated errno
- * value is returned on a failure (all error values returned by
- * inode_reserve):
- *
- * EINVAL - 'path' is invalid for this operation
- * EEXIST - An inode already exists at 'path'
- * ENOMEM - Failed to allocate in-memory resources for the operation
- *
- ****************************************************************************/
- int register_mtdpartition(FAR const char *partition,
- mode_t mode, FAR const char *parent,
- off_t firstblock, size_t nblocks)
- {
- FAR struct mtd_dev_s *part;
- FAR struct inode *mtd;
- int ret;
- /* Find the mtd driver */
- ret = find_mtddriver(parent, &mtd);
- if (ret < 0)
- {
- return ret;
- }
- /* Create the mtd partition */
- part = mtd_partition(mtd->u.i_mtd, firstblock, nblocks);
- inode_release(mtd);
- if (part == NULL)
- {
- return -EINVAL;
- }
- #ifdef CONFIG_MTD_PARTITION_NAMES
- mtd_setpartitionname(part, partition);
- #endif
- /* Register the mtd partition */
- ret = register_mtddriver(partition, part, mode, part);
- if (ret < 0)
- {
- return ret;
- }
- return OK;
- }
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