1 /*
2 * Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification,
5 * are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright notice, this list of
8 * conditions and the following disclaimer.
9 *
10 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
11 * of conditions and the following disclaimer in the documentation and/or other materials
12 * provided with the distribution.
13 *
14 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
15 * to endorse or promote products derived from this software without specific prior written
16 * permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
27 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
28 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #ifndef __VFS_JFFS2_H__
32 #define __VFS_JFFS2_H__
33
34 #include <dirent.h>
35 #include <time.h>
36 #include "los_config.h"
37 #include "los_typedef.h"
38 #include "los_list.h"
39
40 #ifdef __cplusplus
41 #if __cplusplus
42 extern "C" {
43 #endif /* __cplusplus */
44 #endif /* __cplusplus */
45
46 #ifndef NOR_FLASH_BOOT_SIZE
47 #define NOR_FLASH_BOOT_SIZE 0x100000
48 #endif
49
50 #define BLOCK_SIZE 4096
51 #define JFFS2_NODE_HASH_BUCKETS 128
52 #define JFFS2_NODE_HASH_MASK (JFFS2_NODE_HASH_BUCKETS - 1)
53
54
55 #define JFFS2_WAITING_FOREVER -1 /* Block forever until get resource. */
56
57 /* block/char not support */
58 #define JFFS2_F_I_RDEV_MIN(f) (0)
59 #define JFFS2_F_I_RDEV_MAJ(f) (0)
60
full_name_hash(const unsigned char * name,unsigned int len)61 static inline unsigned int full_name_hash(const unsigned char *name, unsigned int len)
62 {
63 unsigned hash = 0;
64 while (len--) {
65 hash = (hash << 4) | (hash >> 28);
66 hash ^= *(name++);
67 }
68 return hash;
69 }
70
71 int Jffs2MutexCreate(void);
72 void Jffs2MutexDelete(void);
73 void Jffs2NodeLock(void); /* lock for inode ops */
74 void Jffs2NodeUnlock(void);
75 time_t Jffs2CurSec(void);
76
77
78 #ifdef __cplusplus
79 #if __cplusplus
80 }
81 #endif /* __cplusplus */
82 #endif /* __cplusplus */
83
84 #endif
85