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 42extern "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 61static 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 71int Jffs2MutexCreate(void); 72void Jffs2MutexDelete(void); 73void Jffs2NodeLock(void); /* lock for inode ops */ 74void Jffs2NodeUnlock(void); 75time_t Jffs2CurSec(void); 76 77 78#ifdef __cplusplus 79#if __cplusplus 80} 81#endif /* __cplusplus */ 82#endif /* __cplusplus */ 83 84#endif 85