lwext4/include/ext4_config.h

/*
 * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

/** @addtogroup lwext4
 * @{
 */
/**
 * @file  ext4_config.h
 * @brief Configuration file.
 */

#ifndef EXT4_CONFIG_H_
#define EXT4_CONFIG_H_

#ifdef __cplusplus
extern "C" {
#endif

#if !CONFIG_USE_DEFAULT_CFG
#include "generated/ext4_config.h"
#endif

/*****************************************************************************/

#define F_SET_EXT2 2
#define F_SET_EXT3 3
#define F_SET_EXT4 4

#ifndef CONFIG_EXT_FEATURE_SET_LVL
#define CONFIG_EXT_FEATURE_SET_LVL F_SET_EXT4
#endif

/*****************************************************************************/

#if CONFIG_EXT_FEATURE_SET_LVL == F_SET_EXT2
/*Superblock features flag EXT2*/
#define CONFIG_SUPPORTED_FCOM EXT2_SUPPORTED_FCOM
#define CONFIG_SUPPORTED_FINCOM (EXT2_SUPPORTED_FINCOM | EXT_FINCOM_IGNORED)
#define CONFIG_SUPPORTED_FRO_COM EXT2_SUPPORTED_FRO_COM

#elif CONFIG_EXT_FEATURE_SET_LVL == F_SET_EXT3
/*Superblock features flag EXT3*/
#define CONFIG_SUPPORTED_FCOM EXT3_SUPPORTED_FCOM
#define CONFIG_SUPPORTED_FINCOM (EXT3_SUPPORTED_FINCOM | EXT_FINCOM_IGNORED)
#define CONFIG_SUPPORTED_FRO_COM EXT3_SUPPORTED_FRO_COM
#elif CONFIG_EXT_FEATURE_SET_LVL == F_SET_EXT4
/*Superblock features flag EXT4*/
#define CONFIG_SUPPORTED_FCOM EXT4_SUPPORTED_FCOM
#define CONFIG_SUPPORTED_FINCOM (EXT4_SUPPORTED_FINCOM | EXT_FINCOM_IGNORED)
#define CONFIG_SUPPORTED_FRO_COM EXT4_SUPPORTED_FRO_COM
#else
#define "Unsupported CONFIG_EXT_FEATURE_SET_LVL"
#endif

#define CONFIG_DIR_INDEX_ENABLE (CONFIG_SUPPORTED_FCOM & EXT4_FCOM_DIR_INDEX)
#define CONFIG_EXTENT_ENABLE (CONFIG_SUPPORTED_FINCOM & EXT4_FINCOM_EXTENTS)
#define CONFIG_META_CSUM_ENABLE (CONFIG_SUPPORTED_FRO_COM & EXT4_FRO_COM_METADATA_CSUM)

/*****************************************************************************/

/**@brief  Enable/disable journaling*/
#ifndef CONFIG_JOURNALING_ENABLE
#define CONFIG_JOURNALING_ENABLE 1
#endif

/**@brief  Enable/disable xattr*/
#ifndef CONFIG_XATTR_ENABLE
#define CONFIG_XATTR_ENABLE 1
#endif

/**@brief  Enable/disable extents*/
#ifndef CONFIG_EXTENTS_ENABLE
#define CONFIG_EXTENTS_ENABLE 1
#endif

/**@brief   Include error codes from ext4_errno or standard library.*/
#ifndef CONFIG_HAVE_OWN_ERRNO
#define CONFIG_HAVE_OWN_ERRNO 0
#endif

/**@brief   Debug printf enable (stdout)*/
#ifndef CONFIG_DEBUG_PRINTF
#define CONFIG_DEBUG_PRINTF 1
#endif

/**@brief   Assert printf enable (stdout)*/
#ifndef CONFIG_DEBUG_ASSERT
#define CONFIG_DEBUG_ASSERT 1
#endif

/**@brief   Include assert codes from ext4_debug or standard library.*/
#ifndef CONFIG_HAVE_OWN_ASSERT
#define CONFIG_HAVE_OWN_ASSERT 1
#endif

/**@brief   Statistics of block device*/
#ifndef CONFIG_BLOCK_DEV_ENABLE_STATS
#define CONFIG_BLOCK_DEV_ENABLE_STATS 1
#endif

/**@brief   Cache size of block device.*/
#ifndef CONFIG_BLOCK_DEV_CACHE_SIZE
#define CONFIG_BLOCK_DEV_CACHE_SIZE 8
#endif


/**@brief   Maximum block device name*/
#ifndef CONFIG_EXT4_MAX_BLOCKDEV_NAME
#define CONFIG_EXT4_MAX_BLOCKDEV_NAME 32
#endif


/**@brief   Maximum block device count*/
#ifndef CONFIG_EXT4_BLOCKDEVS_COUNT
#define CONFIG_EXT4_BLOCKDEVS_COUNT 4
#endif

/**@brief   Maximum mountpoint name*/
#ifndef CONFIG_EXT4_MAX_MP_NAME
#define CONFIG_EXT4_MAX_MP_NAME 32
#endif

/**@brief   Maximum mountpoint count*/
#ifndef CONFIG_EXT4_MOUNTPOINTS_COUNT
#define CONFIG_EXT4_MOUNTPOINTS_COUNT 20
#endif

/**@brief   Include open flags from ext4_errno or standard library.*/
#ifndef CONFIG_HAVE_OWN_OFLAGS
#define CONFIG_HAVE_OWN_OFLAGS 1
#endif

/**@brief Maximum single truncate size. Transactions must be limited to reduce
 *        number of allocetions for single transaction*/
#ifndef CONFIG_MAX_TRUNCATE_SIZE
#define CONFIG_MAX_TRUNCATE_SIZE (16ul * 1024ul * 1024ul)
#endif


/**@brief Unaligned access switch on/off*/
#ifndef CONFIG_UNALIGNED_ACCESS
#define CONFIG_UNALIGNED_ACCESS 0
#endif

/**@brief Switches use of malloc/free functions family
 *        from standard library to user provided*/
#ifndef CONFIG_USE_USER_MALLOC
#define CONFIG_USE_USER_MALLOC 0
#endif

#ifdef __cplusplus
}
#endif

#endif /* EXT4_CONFIG_H_ */

/**
 * @}
 */