/****************************************************************************
 * fs/partition/partition.h
 *
 *   Copyright (C) 2018 Pinecone Inc. All rights reserved.
 *   Author: Xiang Xiao <xiaoxiangg@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.
 *
 ****************************************************************************/

#ifndef __FS_PARTITION_PARTITION_H
#define __FS_PARTITION_PARTITION_H

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <nuttx/fs/fs.h>
#include <nuttx/fs/partition.h>
#include <nuttx/mtd/mtd.h>

#ifndef CONFIG_DISABLE_MOUNTPOINT

/****************************************************************************
 * Public Types
 ****************************************************************************/

struct partition_state_s
{
  FAR struct mtd_dev_s *mtd;
  FAR struct inode *blk;
  size_t nblocks;
  size_t blocksize;
  size_t erasesize;
};

/****************************************************************************
 * Public Inline Functions
 ****************************************************************************/

static inline int read_partition_block(FAR struct partition_state_s *state,
                                       FAR void *buffer, size_t startblock,
                                       size_t nblocks)
{
  if (state->blk)
    {
      return state->blk->u.i_bops->read(state->blk, buffer, startblock, nblocks);
    }
  else
    {
      return state->mtd->bread(state->mtd, startblock, nblocks, buffer);
    }
}

#endif /* CONFIG_DISABLE_MOUNTPOINT */

#endif /* __FS_PARTITION_PARTITION_H */