141 lines
5.3 KiB
C
141 lines
5.3 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) 2014 Damien P. George
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* Copyright (c) 2016 Paul Sokolovsky
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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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#include "py/mpconfig.h"
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#if MICROPY_VFS_FAT
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#include "py/nlr.h"
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#include "py/runtime.h"
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#include "lib/fatfs/ff.h"
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#include "lib/fatfs/diskio.h"
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#include "extmod/vfs_fat_file.h"
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#include "fsusermount.h"
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#define mp_obj_fat_vfs_t fs_user_mount_t
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STATIC mp_obj_t fat_vfs_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
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mp_arg_check_num(n_args, n_kw, 2, 2, false);
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mp_obj_fat_vfs_t *vfs = fatfs_mount_mkfs(n_args, args, (mp_map_t*)&mp_const_empty_map, false);
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vfs->base.type = type;
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return MP_OBJ_FROM_PTR(vfs);
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}
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STATIC mp_obj_t fat_vfs_mkfs(mp_obj_t bdev_in) {
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mp_obj_t args[] = {bdev_in, MP_OBJ_NEW_QSTR(MP_QSTR_mkfs)};
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fatfs_mount_mkfs(2, args, (mp_map_t*)&mp_const_empty_map, true);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(fat_vfs_mkfs_fun_obj, fat_vfs_mkfs);
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STATIC MP_DEFINE_CONST_STATICMETHOD_OBJ(fat_vfs_mkfs_obj, MP_ROM_PTR(&fat_vfs_mkfs_fun_obj));
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STATIC mp_obj_t fat_vfs_open(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
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// Skip self
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return fatfs_builtin_open(n_args - 1, args + 1, kwargs);
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}
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MP_DEFINE_CONST_FUN_OBJ_KW(fat_vfs_open_obj, 2, fat_vfs_open);
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STATIC mp_obj_t fat_vfs_listdir_func(size_t n_args, const mp_obj_t *args) {
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bool is_str_type = true;
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const char *path;
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if (n_args == 2) {
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if (mp_obj_get_type(args[1]) == &mp_type_bytes) {
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is_str_type = false;
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}
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path = mp_obj_str_get_str(args[1]);
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} else {
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path = "";
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}
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return fat_vfs_listdir(path, is_str_type);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(fat_vfs_listdir_obj, 1, 2, fat_vfs_listdir_func);
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STATIC mp_obj_t fat_vfs_remove(mp_obj_t vfs_in, mp_obj_t path_in) {
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(void)vfs_in;
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const char *path = mp_obj_str_get_str(path_in);
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// TODO check that path is actually a file before trying to unlink it
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FRESULT res = f_unlink(path);
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switch (res) {
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case FR_OK:
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return mp_const_none;
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default:
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// TODO: standard errno's
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "Error removing file '%s'", path));
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(fat_vfs_remove_obj, fat_vfs_remove);
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STATIC mp_obj_t fat_vfs_rename(mp_obj_t vfs_in, mp_obj_t path_in, mp_obj_t path_out) {
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(void)vfs_in;
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const char *old_path = mp_obj_str_get_str(path_in);
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const char *new_path = mp_obj_str_get_str(path_out);
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FRESULT res = f_rename(old_path, new_path);
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switch (res) {
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case FR_OK:
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return mp_const_none;
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default:
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "Error renaming file '%s' to '%s'", old_path, new_path));
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_3(fat_vfs_rename_obj, fat_vfs_rename);
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STATIC mp_obj_t fat_vfs_mkdir(mp_obj_t vfs_in, mp_obj_t path_o) {
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(void)vfs_in;
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const char *path = mp_obj_str_get_str(path_o);
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FRESULT res = f_mkdir(path);
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switch (res) {
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case FR_OK:
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return mp_const_none;
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case FR_EXIST:
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// TODO should be FileExistsError
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "File exists: '%s'", path));
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default:
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "Error creating directory '%s'", path));
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(fat_vfs_mkdir_obj, fat_vfs_mkdir);
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STATIC const mp_rom_map_elem_t fat_vfs_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_mkfs), MP_ROM_PTR(&fat_vfs_mkfs_obj) },
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{ MP_ROM_QSTR(MP_QSTR_open), MP_ROM_PTR(&fat_vfs_open_obj) },
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{ MP_ROM_QSTR(MP_QSTR_listdir), MP_ROM_PTR(&fat_vfs_listdir_obj) },
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{ MP_ROM_QSTR(MP_QSTR_mkdir), MP_ROM_PTR(&fat_vfs_mkdir_obj) },
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{ MP_ROM_QSTR(MP_QSTR_remove), MP_ROM_PTR(&fat_vfs_remove_obj) },
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{ MP_ROM_QSTR(MP_QSTR_rename), MP_ROM_PTR(&fat_vfs_rename_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(fat_vfs_locals_dict, fat_vfs_locals_dict_table);
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const mp_obj_type_t mp_fat_vfs_type = {
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{ &mp_type_type },
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.name = MP_QSTR_VfsFat,
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.make_new = fat_vfs_make_new,
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.locals_dict = (mp_obj_dict_t*)&fat_vfs_locals_dict,
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};
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#endif // MICROPY_VFS_FAT
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