c117effddd
Following other C-level protocols, this VFS protocol is added to help abstract away implementation details of the underlying VFS in an efficient way. As a starting point, the import_stat function is put into this protocol so that the VFS sub-system does not need to know about every VFS implementation in order to do an efficient stat for importing files. In the future it might be worth adding other functions to this protocol.
64 lines
2.4 KiB
C
64 lines
2.4 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef MICROPY_INCLUDED_EXTMOD_VFS_FAT_H
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#define MICROPY_INCLUDED_EXTMOD_VFS_FAT_H
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#include "py/lexer.h"
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#include "py/obj.h"
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#include "lib/oofatfs/ff.h"
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#include "extmod/vfs.h"
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// these are the values for fs_user_mount_t.flags
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#define FSUSER_NATIVE (0x0001) // readblocks[2]/writeblocks[2] contain native func
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#define FSUSER_FREE_OBJ (0x0002) // fs_user_mount_t obj should be freed on umount
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#define FSUSER_HAVE_IOCTL (0x0004) // new protocol with ioctl
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#define FSUSER_NO_FILESYSTEM (0x0008) // the block device has no filesystem on it
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typedef struct _fs_user_mount_t {
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mp_obj_base_t base;
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uint16_t flags;
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mp_obj_t readblocks[4];
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mp_obj_t writeblocks[4];
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// new protocol uses just ioctl, old uses sync (optional) and count
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union {
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mp_obj_t ioctl[4];
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struct {
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mp_obj_t sync[2];
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mp_obj_t count[2];
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} old;
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} u;
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FATFS fatfs;
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} fs_user_mount_t;
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extern const byte fresult_to_errno_table[20];
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extern const mp_obj_type_t mp_fat_vfs_type;
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extern const mp_obj_type_t mp_type_vfs_fat_fileio;
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extern const mp_obj_type_t mp_type_vfs_fat_textio;
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MP_DECLARE_CONST_FUN_OBJ_3(fat_vfs_open_obj);
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#endif // MICROPY_INCLUDED_EXTMOD_VFS_FAT_H
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