2 * Copyright (c) 2015 Grzegorz Kostka (kostka.grzegorz@gmail.com)
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #include <ext4_config.h>
31 #include <ext4_blockdev.h>
32 #include <ext4_errno.h>
35 /**********************BLOCKDEV INTERFACE**************************************/
36 static int blockdev_open(struct ext4_blockdev *bdev);
37 static int blockdev_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,
39 static int blockdev_bwrite(struct ext4_blockdev *bdev, const void *buf,
40 uint64_t blk_id, uint32_t blk_cnt);
41 static int blockdev_close(struct ext4_blockdev *bdev);
42 static int blockdev_lock(struct ext4_blockdev *bdev);
43 static int blockdev_unlock(struct ext4_blockdev *bdev);
45 /******************************************************************************/
46 EXT4_BLOCKDEV_STATIC_INSTANCE(blockdev, 512, 0, blockdev_open,
47 blockdev_bread, blockdev_bwrite, blockdev_close,
48 blockdev_lock, blockdev_unlock);
50 /******************************************************************************/
51 static int blockdev_open(struct ext4_blockdev *bdev)
53 /*blockdev_open: skeleton*/
57 /******************************************************************************/
59 static int blockdev_bread(struct ext4_blockdev *bdev, void *buf, uint64_t blk_id,
62 /*blockdev_bread: skeleton*/
67 /******************************************************************************/
68 static int blockdev_bwrite(struct ext4_blockdev *bdev, const void *buf,
69 uint64_t blk_id, uint32_t blk_cnt)
71 /*blockdev_bwrite: skeleton*/
74 /******************************************************************************/
75 static int blockdev_close(struct ext4_blockdev *bdev)
77 /*blockdev_close: skeleton*/
81 static int blockdev_lock(struct ext4_blockdev *bdev)
83 /*blockdev_lock: skeleton*/
87 static int blockdev_unlock(struct ext4_blockdev *bdev)
89 /*blockdev_unlock: skeleton*/
93 /******************************************************************************/
94 struct ext4_blockdev *ext4_blockdev_get(void)
98 /******************************************************************************/