123 lines
3.0 KiB
C
123 lines
3.0 KiB
C
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// internal definitions for vfs
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#ifndef __VFS_INT_H__
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#define __VFS_INT_H__
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#include <string.h>
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#include <stdint.h>
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#include "user_config.h"
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#define VFS_EOF -1
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enum vfs_filesystems {
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VFS_FS_NONE = 0,
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VFS_FS_SPIFFS,
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VFS_FS_FATFS
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};
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enum vfs_seek {
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VFS_SEEK_SET = 0,
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VFS_SEEK_CUR,
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VFS_SEEK_END
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};
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enum vfs_result {
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VFS_RES_OK = 0,
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VFS_RES_ERR = -1
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};
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struct vfs_time {
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int year, mon, day;
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int hour, min, sec;
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};
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typedef struct vfs_time vfs_time;
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// generic file descriptor
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struct vfs_file {
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int fs_type;
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const struct vfs_file_fns *fns;
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};
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typedef const struct vfs_file vfs_file;
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// stat data
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struct vfs_stat {
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uint32_t size;
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char name[FS_OBJ_NAME_LEN+1];
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struct vfs_time tm;
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uint8_t tm_valid;
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uint8_t is_dir;
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uint8_t is_rdonly;
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uint8_t is_hidden;
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uint8_t is_sys;
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uint8_t is_arch;
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};
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// file descriptor functions
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struct vfs_file_fns {
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int32_t (*close)( const struct vfs_file *fd );
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int32_t (*read)( const struct vfs_file *fd, void *ptr, size_t len );
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int32_t (*write)( const struct vfs_file *fd, const void *ptr, size_t len );
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int32_t (*lseek)( const struct vfs_file *fd, int32_t off, int whence );
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int32_t (*eof)( const struct vfs_file *fd );
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int32_t (*tell)( const struct vfs_file *fd );
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int32_t (*flush)( const struct vfs_file *fd );
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uint32_t (*size)( const struct vfs_file *fd );
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int32_t (*ferrno)( const struct vfs_file *fd );
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};
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typedef const struct vfs_file_fns vfs_file_fns;
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// generic dir descriptor
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struct vfs_dir {
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int fs_type;
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const struct vfs_dir_fns *fns;
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};
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typedef const struct vfs_dir vfs_dir;
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// dir descriptor functions
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struct vfs_dir_fns {
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int32_t (*close)( const struct vfs_dir *dd );
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int32_t (*readdir)( const struct vfs_dir *dd, struct vfs_stat *buf );
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};
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typedef const struct vfs_dir_fns vfs_dir_fns;
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// generic volume descriptor
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struct vfs_vol {
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int fs_type;
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const struct vfs_vol_fns *fns;
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};
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typedef const struct vfs_vol vfs_vol;
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// volume functions
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struct vfs_vol_fns {
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int32_t (*umount)( const struct vfs_vol *vol );
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};
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typedef const struct vfs_vol_fns vfs_vol_fns;
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struct vfs_fs_fns {
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vfs_vol *(*mount)( const char *name, int num );
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vfs_file *(*open)( const char *name, const char *mode );
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vfs_dir *(*opendir)( const char *name );
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int32_t (*stat)( const char *name, struct vfs_stat *buf );
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int32_t (*remove)( const char *name );
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int32_t (*rename)( const char *oldname, const char *newname );
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int32_t (*mkdir)( const char *name );
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int32_t (*fsinfo)( uint32_t *total, uint32_t *used );
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int32_t (*fscfg)( uint32_t *phys_addr, uint32_t *phys_size );
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int32_t (*format)( void );
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int32_t (*chdrive)( const char * );
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int32_t (*chdir)( const char * );
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int32_t (*ferrno)( void );
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void (*clearerr)( void );
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};
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typedef const struct vfs_fs_fns vfs_fs_fns;
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vfs_fs_fns *myspiffs_realm( const char *inname, char **outname, int set_current_drive );
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vfs_fs_fns *myfatfs_realm( const char *inname, char **outname, int set_current_drive );
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int32_t vfs_get_rtc( vfs_time *tm );
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#endif
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