Merge pull request #49 from sirocyl/patch-1
[lwext4.git] / include / ext4_config.h
1 /*
2  * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
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.
16  *
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.
27  */
28
29 /** @addtogroup lwext4
30  * @{
31  */
32 /**
33  * @file  ext4_config.h
34  * @brief Configuration file.
35  */
36
37 #ifndef EXT4_CONFIG_H_
38 #define EXT4_CONFIG_H_
39
40 #ifdef __cplusplus
41 extern "C" {
42 #endif
43
44 #if !CONFIG_USE_DEFAULT_CFG
45 #include "generated/ext4_config.h"
46 #endif
47
48 /*****************************************************************************/
49
50 #define F_SET_EXT2 2
51 #define F_SET_EXT3 3
52 #define F_SET_EXT4 4
53
54 #ifndef CONFIG_EXT_FEATURE_SET_LVL
55 #define CONFIG_EXT_FEATURE_SET_LVL F_SET_EXT4
56 #endif
57
58 /*****************************************************************************/
59
60 #if CONFIG_EXT_FEATURE_SET_LVL == F_SET_EXT2
61 /*Superblock features flag EXT2*/
62 #define CONFIG_SUPPORTED_FCOM EXT2_SUPPORTED_FCOM
63 #define CONFIG_SUPPORTED_FINCOM (EXT2_SUPPORTED_FINCOM | EXT_FINCOM_IGNORED)
64 #define CONFIG_SUPPORTED_FRO_COM EXT2_SUPPORTED_FRO_COM
65
66 #elif CONFIG_EXT_FEATURE_SET_LVL == F_SET_EXT3
67 /*Superblock features flag EXT3*/
68 #define CONFIG_SUPPORTED_FCOM EXT3_SUPPORTED_FCOM
69 #define CONFIG_SUPPORTED_FINCOM (EXT3_SUPPORTED_FINCOM | EXT_FINCOM_IGNORED)
70 #define CONFIG_SUPPORTED_FRO_COM EXT3_SUPPORTED_FRO_COM
71 #elif CONFIG_EXT_FEATURE_SET_LVL == F_SET_EXT4
72 /*Superblock features flag EXT4*/
73 #define CONFIG_SUPPORTED_FCOM EXT4_SUPPORTED_FCOM
74 #define CONFIG_SUPPORTED_FINCOM (EXT4_SUPPORTED_FINCOM | EXT_FINCOM_IGNORED)
75 #define CONFIG_SUPPORTED_FRO_COM EXT4_SUPPORTED_FRO_COM
76 #else
77 #define "Unsupported CONFIG_EXT_FEATURE_SET_LVL"
78 #endif
79
80 #define CONFIG_DIR_INDEX_ENABLE (CONFIG_SUPPORTED_FCOM & EXT4_FCOM_DIR_INDEX)
81 #define CONFIG_EXTENT_ENABLE (CONFIG_SUPPORTED_FINCOM & EXT4_FINCOM_EXTENTS)
82 #define CONFIG_META_CSUM_ENABLE (CONFIG_SUPPORTED_FRO_COM & EXT4_FRO_COM_METADATA_CSUM)
83
84 /*****************************************************************************/
85
86 /**@brief  Enable/disable journaling*/
87 #ifndef CONFIG_JOURNALING_ENABLE
88 #define CONFIG_JOURNALING_ENABLE 1
89 #endif
90
91 /**@brief  Enable/disable xattr*/
92 #ifndef CONFIG_XATTR_ENABLE
93 #define CONFIG_XATTR_ENABLE 1
94 #endif
95
96 /**@brief  Enable/disable extents*/
97 #ifndef CONFIG_EXTENTS_ENABLE
98 #define CONFIG_EXTENTS_ENABLE 1
99 #endif
100
101 /**@brief   Include error codes from ext4_errno or standard library.*/
102 #ifndef CONFIG_HAVE_OWN_ERRNO
103 #define CONFIG_HAVE_OWN_ERRNO 0
104 #endif
105
106 /**@brief   Debug printf enable (stdout)*/
107 #ifndef CONFIG_DEBUG_PRINTF
108 #define CONFIG_DEBUG_PRINTF 1
109 #endif
110
111 /**@brief   Assert printf enable (stdout)*/
112 #ifndef CONFIG_DEBUG_ASSERT
113 #define CONFIG_DEBUG_ASSERT 1
114 #endif
115
116 /**@brief   Include assert codes from ext4_debug or standard library.*/
117 #ifndef CONFIG_HAVE_OWN_ASSERT
118 #define CONFIG_HAVE_OWN_ASSERT 1
119 #endif
120
121 /**@brief   Statistics of block device*/
122 #ifndef CONFIG_BLOCK_DEV_ENABLE_STATS
123 #define CONFIG_BLOCK_DEV_ENABLE_STATS 1
124 #endif
125
126 /**@brief   Cache size of block device.*/
127 #ifndef CONFIG_BLOCK_DEV_CACHE_SIZE
128 #define CONFIG_BLOCK_DEV_CACHE_SIZE 8
129 #endif
130
131
132 /**@brief   Maximum block device name*/
133 #ifndef CONFIG_EXT4_MAX_BLOCKDEV_NAME
134 #define CONFIG_EXT4_MAX_BLOCKDEV_NAME 32
135 #endif
136
137
138 /**@brief   Maximum block device count*/
139 #ifndef CONFIG_EXT4_BLOCKDEVS_COUNT
140 #define CONFIG_EXT4_BLOCKDEVS_COUNT 2
141 #endif
142
143 /**@brief   Maximum mountpoint name*/
144 #ifndef CONFIG_EXT4_MAX_MP_NAME
145 #define CONFIG_EXT4_MAX_MP_NAME 32
146 #endif
147
148 /**@brief   Maximum mountpoint count*/
149 #ifndef CONFIG_EXT4_MOUNTPOINTS_COUNT
150 #define CONFIG_EXT4_MOUNTPOINTS_COUNT 2
151 #endif
152
153 /**@brief   Include open flags from ext4_errno or standard library.*/
154 #ifndef CONFIG_HAVE_OWN_OFLAGS
155 #define CONFIG_HAVE_OWN_OFLAGS 1
156 #endif
157
158 /**@brief Maximum single truncate size. Transactions must be limited to reduce
159  *        number of allocetions for single transaction*/
160 #ifndef CONFIG_MAX_TRUNCATE_SIZE
161 #define CONFIG_MAX_TRUNCATE_SIZE (16ul * 1024ul * 1024ul)
162 #endif
163
164
165 /**@brief Unaligned access switch on/off*/
166 #ifndef CONFIG_UNALIGNED_ACCESS
167 #define CONFIG_UNALIGNED_ACCESS 0
168 #endif
169
170 /**@brief Switches use of malloc/free functions family
171  *        from standard library to user provided*/
172 #ifndef CONFIG_USE_USER_MALLOC
173 #define CONFIG_USE_USER_MALLOC 0
174 #endif
175
176 #ifdef __cplusplus
177 }
178 #endif
179
180 #endif /* EXT4_CONFIG_H_ */
181
182 /**
183  * @}
184  */