/* * YAFFS: Yet another Flash File System . A NAND-flash specific file system. * * Copyright (C) 2002-2011 Aleph One Ltd. * for Toby Churchill Ltd and Brightstar Engineering * * Created by Charles Manning * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License version 2.1 as * published by the Free Software Foundation. * * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. */ /* * Header file for using yaffs in an application via * a direct interface. */ #ifndef __YAFFSFS_H__ #define __YAFFSFS_H__ #include "yaffscfg.h" #include "yportenv.h" #ifndef NAME_MAX #define NAME_MAX 256 #endif #define YAFFS_MAX_FILE_SIZE (0x800000000LL - 1) struct yaffs_dirent { long d_ino; /* inode number */ off_t d_off; /* offset to this dirent */ unsigned short d_reclen; /* length of this dirent */ YUCHAR d_type; /* type of this record */ YCHAR d_name[NAME_MAX+1]; /* file name (null-terminated) */ unsigned d_dont_use; /* debug: not for public consumption */ }; typedef struct opaque_structure yaffs_DIR; struct yaffs_stat { int st_dev; /* device */ int st_ino; /* inode */ unsigned st_mode; /* protection */ int st_nlink; /* number of hard links */ int st_uid; /* user ID of owner */ int st_gid; /* group ID of owner */ unsigned st_rdev; /* device type (if inode device) */ loff_t st_size; /* total size, in bytes */ unsigned long st_blksize; /* blocksize for filesystem I/O */ unsigned long st_blocks; /* number of blocks allocated */ #ifdef CONFIG_YAFFS_WINCE /* Special 64-bit times for WinCE */ unsigned long yst_wince_atime[2]; unsigned long yst_wince_mtime[2]; unsigned long yst_wince_ctime[2]; #else unsigned long yst_atime; /* time of last access */ unsigned long yst_mtime; /* time of last modification */ unsigned long yst_ctime; /* time of last change */ #endif }; struct yaffs_utimbuf { unsigned long actime; unsigned long modtime; }; int yaffs_open(const YCHAR *path, int oflag, int mode) ; int yaffs_close(int fd) ; int yaffs_fsync(int fd) ; int yaffs_fdatasync(int fd) ; int yaffs_flush(int fd) ; /* same as yaffs_fsync() */ int yaffs_access(const YCHAR *path, int amode); int yaffs_dup(int fd); int yaffs_read(int fd, void *buf, unsigned int nbyte) ; int yaffs_write(int fd, const void *buf, unsigned int nbyte) ; int yaffs_pread(int fd, void *buf, unsigned int nbyte, loff_t offset); int yaffs_pwrite(int fd, const void *buf, unsigned int nbyte, loff_t offset); loff_t yaffs_lseek(int fd, loff_t offset, int whence) ; int yaffs_truncate(const YCHAR *path, loff_t new_size); int yaffs_ftruncate(int fd, loff_t new_size); int yaffs_unlink(const YCHAR *path) ; int yaffs_rename(const YCHAR *oldPath, const YCHAR *newPath) ; int yaffs_stat(const YCHAR *path, struct yaffs_stat *buf) ; int yaffs_lstat(const YCHAR *path, struct yaffs_stat *buf) ; int yaffs_fstat(int fd, struct yaffs_stat *buf) ; int yaffs_utime(const YCHAR *path, const struct yaffs_utimbuf *buf); int yaffs_futime(int fd, const struct yaffs_utimbuf *buf); int yaffs_setxattr(const char *path, const char *name, const void *data, int size, int flags); int yaffs_lsetxattr(const char *path, const char *name, const void *data, int size, int flags); int yaffs_fsetxattr(int fd, const char *name, const void *data, int size, int flags); int yaffs_getxattr(const char *path, const char *name, void *data, int size); int yaffs_lgetxattr(const char *path, const char *name, void *data, int size); int yaffs_fgetxattr(int fd, const char *name, void *data, int size); int yaffs_removexattr(const char *path, const char *name); int yaffs_lremovexattr(const char *path, const char *name); int yaffs_fremovexattr(int fd, const char *name); int yaffs_listxattr(const char *path, char *list, int size); int yaffs_llistxattr(const char *path, char *list, int size); int yaffs_flistxattr(int fd, char *list, int size); #ifdef CONFIG_YAFFS_WINCE int yaffs_set_wince_times(int fd, const unsigned *wctime, const unsigned *watime, const unsigned *wmtime); int yaffs_get_wince_times(int fd, unsigned *wctime, unsigned *watime, unsigned *wmtime); #endif int yaffs_chmod(const YCHAR *path, mode_t mode); int yaffs_fchmod(int fd, mode_t mode); int yaffs_mkdir(const YCHAR *path, mode_t mode) ; int yaffs_rmdir(const YCHAR *path) ; yaffs_DIR *yaffs_opendir(const YCHAR *dirname) ; struct yaffs_dirent *yaffs_readdir(yaffs_DIR *dirp) ; void yaffs_rewinddir(yaffs_DIR *dirp) ; int yaffs_closedir(yaffs_DIR *dirp) ; int yaffs_mount(const YCHAR *path) ; int yaffs_mount2(const YCHAR *path, int read_only); int yaffs_mount_common(const YCHAR *path, int read_only, int skip_checkpt); int yaffs_unmount(const YCHAR *path) ; int yaffs_unmount2(const YCHAR *path, int force); int yaffs_remount(const YCHAR *path, int force, int read_only); int yaffs_sync(const YCHAR *path) ; int yaffs_symlink(const YCHAR *oldpath, const YCHAR *newpath); int yaffs_readlink(const YCHAR *path, YCHAR *buf, int bufsiz); int yaffs_link(const YCHAR *oldpath, const YCHAR *newpath); int yaffs_mknod(const YCHAR *pathname, mode_t mode, dev_t dev); loff_t yaffs_freespace(const YCHAR *path); loff_t yaffs_totalspace(const YCHAR *path); int yaffs_inodecount(const YCHAR *path); int yaffs_n_handles(const YCHAR *path); #define YAFFS_SHARE_READ 1 #define YAFFS_SHARE_WRITE 2 int yaffs_open_sharing(const YCHAR *path, int oflag, int mode, int shareMode); struct yaffs_dev; void yaffs_add_device(struct yaffs_dev *dev); int yaffs_start_up(void); int yaffsfs_GetLastError(void); /* Functions to iterate through devices. NB Use with extreme care! */ void yaffs_dev_rewind(void); struct yaffs_dev *yaffs_next_dev(void); /* Function to get the last error */ int yaffs_get_error(void); const char *yaffs_error_to_str(int err); /* Function only for debugging */ void *yaffs_getdev(const YCHAR *path); int yaffs_dump_dev(const YCHAR *path); int yaffs_set_error(int error); /* Trace control functions */ unsigned yaffs_set_trace(unsigned tm); unsigned yaffs_get_trace(void); #endif