2016-02-13 20:51:21 +00:00
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/*
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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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2017-01-27 04:13:32 +00:00
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#if !MICROPY_VFS
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#error "with MICROPY_VFS_FAT enabled, must also enable MICROPY_VFS"
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#endif
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2016-05-29 15:23:59 +00:00
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#include <string.h>
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2016-02-13 20:51:21 +00:00
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#include "py/nlr.h"
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#include "py/runtime.h"
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2016-09-28 13:51:35 +00:00
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#include "py/mperrno.h"
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2016-06-01 16:00:28 +00:00
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#include "lib/oofatfs/ff.h"
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2017-01-27 04:04:17 +00:00
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#include "extmod/vfs_fat.h"
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2017-01-30 11:28:37 +00:00
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#include "lib/timeutils/timeutils.h"
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2016-02-13 20:51:21 +00:00
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2017-01-27 11:42:06 +00:00
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#if _MAX_SS == _MIN_SS
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#define SECSIZE(fs) (_MIN_SS)
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#else
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#define SECSIZE(fs) ((fs)->ssize)
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#endif
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2016-02-13 20:51:21 +00:00
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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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2017-01-27 04:13:32 +00:00
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mp_arg_check_num(n_args, n_kw, 1, 1, false);
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// create new object
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fs_user_mount_t *vfs = m_new_obj(fs_user_mount_t);
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2016-02-13 20:51:21 +00:00
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vfs->base.type = type;
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2017-01-27 04:13:32 +00:00
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vfs->flags = FSUSER_FREE_OBJ;
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vfs->str = NULL;
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vfs->len = 0;
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vfs->fatfs.drv = vfs;
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// load block protocol methods
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mp_load_method(args[0], MP_QSTR_readblocks, vfs->readblocks);
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mp_load_method_maybe(args[0], MP_QSTR_writeblocks, vfs->writeblocks);
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mp_load_method_maybe(args[0], MP_QSTR_ioctl, vfs->u.ioctl);
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if (vfs->u.ioctl[0] != MP_OBJ_NULL) {
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// device supports new block protocol, so indicate it
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vfs->flags |= FSUSER_HAVE_IOCTL;
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} else {
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// no ioctl method, so assume the device uses the old block protocol
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mp_load_method_maybe(args[0], MP_QSTR_sync, vfs->u.old.sync);
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mp_load_method(args[0], MP_QSTR_count, vfs->u.old.count);
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}
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2016-02-14 14:21:27 +00:00
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return MP_OBJ_FROM_PTR(vfs);
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2016-02-13 20:51:21 +00:00
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}
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STATIC mp_obj_t fat_vfs_mkfs(mp_obj_t bdev_in) {
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2017-01-27 04:13:32 +00:00
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// create new object
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fs_user_mount_t *vfs = MP_OBJ_TO_PTR(fat_vfs_make_new(&mp_fat_vfs_type, 1, 0, &bdev_in));
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// make the filesystem
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uint8_t working_buf[_MAX_SS];
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FRESULT res = f_mkfs(&vfs->fatfs, FM_FAT | FM_SFD, 0, working_buf, sizeof(working_buf));
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if (res != FR_OK) {
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mp_raise_OSError(fresult_to_errno_table[res]);
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}
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2016-02-13 20:51:21 +00:00
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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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2017-01-27 04:13:32 +00:00
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STATIC MP_DEFINE_CONST_FUN_OBJ_3(fat_vfs_open_obj, fatfs_builtin_open_self);
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2016-02-13 20:51:21 +00:00
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2016-02-28 15:17:24 +00:00
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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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2016-06-01 16:00:28 +00:00
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mp_obj_fat_vfs_t *self = MP_OBJ_TO_PTR(args[0]);
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2016-02-28 15:17:24 +00:00
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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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2016-06-01 16:00:28 +00:00
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return fat_vfs_listdir2(self, path, is_str_type);
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2016-02-28 15:17:24 +00:00
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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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2016-06-01 16:00:28 +00:00
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STATIC mp_obj_t fat_vfs_remove_internal(mp_obj_t vfs_in, mp_obj_t path_in, mp_int_t attr) {
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mp_obj_fat_vfs_t *self = MP_OBJ_TO_PTR(vfs_in);
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2016-02-28 18:30:07 +00:00
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const char *path = mp_obj_str_get_str(path_in);
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2016-09-28 13:51:35 +00:00
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FILINFO fno;
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2016-06-01 16:00:28 +00:00
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FRESULT res = f_stat(&self->fatfs, path, &fno);
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2016-09-28 13:51:35 +00:00
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if (res != FR_OK) {
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mp_raise_OSError(fresult_to_errno_table[res]);
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}
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// check if path is a file or directory
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if ((fno.fattrib & AM_DIR) == attr) {
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2016-06-01 16:00:28 +00:00
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res = f_unlink(&self->fatfs, path);
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2016-09-28 13:51:35 +00:00
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if (res != FR_OK) {
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mp_raise_OSError(fresult_to_errno_table[res]);
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}
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2016-05-27 20:28:00 +00:00
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return mp_const_none;
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} else {
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2016-09-28 13:51:35 +00:00
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mp_raise_OSError(attr ? MP_ENOTDIR : MP_EISDIR);
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2016-02-28 18:30:07 +00:00
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}
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}
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2016-09-28 13:51:35 +00:00
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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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2016-06-01 16:00:28 +00:00
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return fat_vfs_remove_internal(vfs_in, path_in, 0); // 0 == file attribute
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2016-09-28 13:51:35 +00:00
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}
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2016-02-28 18:30:07 +00:00
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(fat_vfs_remove_obj, fat_vfs_remove);
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2016-07-16 00:46:42 +00:00
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STATIC mp_obj_t fat_vfs_rmdir(mp_obj_t vfs_in, mp_obj_t path_in) {
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2016-06-01 16:00:28 +00:00
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return fat_vfs_remove_internal(vfs_in, path_in, AM_DIR);
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2016-07-16 00:46:42 +00:00
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(fat_vfs_rmdir_obj, fat_vfs_rmdir);
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2016-02-28 23:22:38 +00:00
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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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2016-06-01 16:00:28 +00:00
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mp_obj_fat_vfs_t *self = MP_OBJ_TO_PTR(vfs_in);
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2016-02-28 23:22:38 +00:00
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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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2016-06-01 16:00:28 +00:00
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FRESULT res = f_rename(&self->fatfs, old_path, new_path);
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2016-12-02 04:06:09 +00:00
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if (res == FR_EXIST) {
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// if new_path exists then try removing it (but only if it's a file)
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2016-06-01 16:00:28 +00:00
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fat_vfs_remove_internal(vfs_in, path_out, 0); // 0 == file attribute
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2016-12-02 04:06:09 +00:00
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// try to rename again
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2016-06-01 16:00:28 +00:00
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res = f_rename(&self->fatfs, old_path, new_path);
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2016-12-02 04:06:09 +00:00
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}
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2016-05-27 20:28:00 +00:00
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if (res == FR_OK) {
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return mp_const_none;
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} else {
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2016-10-07 02:44:55 +00:00
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mp_raise_OSError(fresult_to_errno_table[res]);
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2016-02-28 23:22:38 +00:00
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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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2016-02-28 22:02:50 +00:00
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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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2016-06-01 16:00:28 +00:00
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mp_obj_fat_vfs_t *self = MP_OBJ_TO_PTR(vfs_in);
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2016-02-28 22:02:50 +00:00
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const char *path = mp_obj_str_get_str(path_o);
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2016-06-01 16:00:28 +00:00
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FRESULT res = f_mkdir(&self->fatfs, path);
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2016-05-27 20:28:00 +00:00
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if (res == FR_OK) {
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return mp_const_none;
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} else {
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2016-10-07 02:44:55 +00:00
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mp_raise_OSError(fresult_to_errno_table[res]);
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2016-02-28 22:02:50 +00:00
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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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2016-05-29 15:17:00 +00:00
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/// Change current directory.
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2016-05-29 15:52:41 +00:00
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STATIC mp_obj_t fat_vfs_chdir(mp_obj_t vfs_in, mp_obj_t path_in) {
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2016-06-01 16:00:28 +00:00
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mp_obj_fat_vfs_t *self = MP_OBJ_TO_PTR(vfs_in);
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2016-05-29 15:17:00 +00:00
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const char *path;
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path = mp_obj_str_get_str(path_in);
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2016-06-01 16:00:28 +00:00
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FRESULT res = f_chdir(&self->fatfs, path);
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2016-05-29 15:17:00 +00:00
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if (res != FR_OK) {
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2016-10-07 02:44:55 +00:00
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mp_raise_OSError(fresult_to_errno_table[res]);
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2016-05-29 15:17:00 +00:00
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}
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return mp_const_none;
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}
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2016-05-29 15:52:41 +00:00
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(fat_vfs_chdir_obj, fat_vfs_chdir);
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2016-05-29 15:17:00 +00:00
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2016-05-29 15:23:59 +00:00
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/// Get the current directory.
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2016-05-29 15:52:41 +00:00
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STATIC mp_obj_t fat_vfs_getcwd(mp_obj_t vfs_in) {
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2016-06-01 16:00:28 +00:00
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mp_obj_fat_vfs_t *self = MP_OBJ_TO_PTR(vfs_in);
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2016-05-29 15:23:59 +00:00
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char buf[MICROPY_ALLOC_PATH_MAX + 1];
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2017-01-27 04:13:32 +00:00
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FRESULT res = f_getcwd(&self->fatfs, buf, sizeof(buf));
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2016-05-29 15:23:59 +00:00
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if (res != FR_OK) {
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2016-10-07 02:44:55 +00:00
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mp_raise_OSError(fresult_to_errno_table[res]);
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2016-05-29 15:23:59 +00:00
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}
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return mp_obj_new_str(buf, strlen(buf), false);
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}
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2016-05-29 15:52:41 +00:00
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(fat_vfs_getcwd_obj, fat_vfs_getcwd);
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2016-05-29 15:23:59 +00:00
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2016-05-30 19:09:20 +00:00
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/// \function stat(path)
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/// Get the status of a file or directory.
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STATIC mp_obj_t fat_vfs_stat(mp_obj_t vfs_in, mp_obj_t path_in) {
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2016-06-01 16:00:28 +00:00
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mp_obj_fat_vfs_t *self = MP_OBJ_TO_PTR(vfs_in);
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2016-05-30 19:09:20 +00:00
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const char *path = mp_obj_str_get_str(path_in);
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FILINFO fno;
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2017-01-27 04:13:32 +00:00
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if (path[0] == 0 || (path[0] == '/' && path[1] == 0)) {
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2016-05-30 19:09:20 +00:00
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// stat root directory
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fno.fsize = 0;
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2016-06-16 16:17:59 +00:00
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fno.fdate = 0x2821; // Jan 1, 2000
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2016-05-30 19:09:20 +00:00
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fno.ftime = 0;
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fno.fattrib = AM_DIR;
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} else {
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2017-01-27 04:13:32 +00:00
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FRESULT res = f_stat(&self->fatfs, path, &fno);
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2016-05-30 19:09:20 +00:00
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if (res != FR_OK) {
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2016-10-07 02:44:55 +00:00
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mp_raise_OSError(fresult_to_errno_table[res]);
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2016-05-30 19:09:20 +00:00
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}
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}
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mp_obj_tuple_t *t = MP_OBJ_TO_PTR(mp_obj_new_tuple(10, NULL));
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mp_int_t mode = 0;
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if (fno.fattrib & AM_DIR) {
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mode |= 0x4000; // stat.S_IFDIR
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} else {
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mode |= 0x8000; // stat.S_IFREG
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}
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mp_int_t seconds = timeutils_seconds_since_2000(
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1980 + ((fno.fdate >> 9) & 0x7f),
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(fno.fdate >> 5) & 0x0f,
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fno.fdate & 0x1f,
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(fno.ftime >> 11) & 0x1f,
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(fno.ftime >> 5) & 0x3f,
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2 * (fno.ftime & 0x1f)
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);
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t->items[0] = MP_OBJ_NEW_SMALL_INT(mode); // st_mode
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t->items[1] = MP_OBJ_NEW_SMALL_INT(0); // st_ino
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t->items[2] = MP_OBJ_NEW_SMALL_INT(0); // st_dev
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t->items[3] = MP_OBJ_NEW_SMALL_INT(0); // st_nlink
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t->items[4] = MP_OBJ_NEW_SMALL_INT(0); // st_uid
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t->items[5] = MP_OBJ_NEW_SMALL_INT(0); // st_gid
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t->items[6] = MP_OBJ_NEW_SMALL_INT(fno.fsize); // st_size
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t->items[7] = MP_OBJ_NEW_SMALL_INT(seconds); // st_atime
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t->items[8] = MP_OBJ_NEW_SMALL_INT(seconds); // st_mtime
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t->items[9] = MP_OBJ_NEW_SMALL_INT(seconds); // st_ctime
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return MP_OBJ_FROM_PTR(t);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(fat_vfs_stat_obj, fat_vfs_stat);
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2016-09-12 17:13:44 +00:00
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// Get the status of a VFS.
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STATIC mp_obj_t fat_vfs_statvfs(mp_obj_t vfs_in, mp_obj_t path_in) {
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2016-06-01 16:00:28 +00:00
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mp_obj_fat_vfs_t *self = MP_OBJ_TO_PTR(vfs_in);
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(void)path_in;
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2016-09-12 17:13:44 +00:00
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DWORD nclst;
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2016-06-01 16:00:28 +00:00
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FATFS *fatfs = &self->fatfs;
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FRESULT res = f_getfree(fatfs, &nclst);
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2016-09-12 17:13:44 +00:00
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if (FR_OK != res) {
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2016-10-07 02:44:55 +00:00
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mp_raise_OSError(fresult_to_errno_table[res]);
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2016-09-12 17:13:44 +00:00
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}
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mp_obj_tuple_t *t = MP_OBJ_TO_PTR(mp_obj_new_tuple(10, NULL));
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2017-01-27 11:42:06 +00:00
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t->items[0] = MP_OBJ_NEW_SMALL_INT(fatfs->csize * SECSIZE(fatfs)); // f_bsize
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2016-09-12 17:13:44 +00:00
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t->items[1] = t->items[0]; // f_frsize
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t->items[2] = MP_OBJ_NEW_SMALL_INT((fatfs->n_fatent - 2) * fatfs->csize); // f_blocks
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t->items[3] = MP_OBJ_NEW_SMALL_INT(nclst); // f_bfree
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t->items[4] = t->items[3]; // f_bavail
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t->items[5] = MP_OBJ_NEW_SMALL_INT(0); // f_files
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t->items[6] = MP_OBJ_NEW_SMALL_INT(0); // f_ffree
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t->items[7] = MP_OBJ_NEW_SMALL_INT(0); // f_favail
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t->items[8] = MP_OBJ_NEW_SMALL_INT(0); // f_flags
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t->items[9] = MP_OBJ_NEW_SMALL_INT(_MAX_LFN); // f_namemax
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return MP_OBJ_FROM_PTR(t);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(fat_vfs_statvfs_obj, fat_vfs_statvfs);
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2017-01-27 04:13:32 +00:00
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STATIC mp_obj_t vfs_fat_mount(mp_obj_t self_in, mp_obj_t readonly, mp_obj_t mkfs) {
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fs_user_mount_t *self = MP_OBJ_TO_PTR(self_in);
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// Read-only device indicated by writeblocks[0] == MP_OBJ_NULL.
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// User can specify read-only device by:
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// 1. readonly=True keyword argument
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// 2. nonexistent writeblocks method (then writeblocks[0] == MP_OBJ_NULL already)
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if (mp_obj_is_true(readonly)) {
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self->writeblocks[0] = MP_OBJ_NULL;
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}
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// mount the block device
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FRESULT res = f_mount(&self->fatfs);
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// check if we need to make the filesystem
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if (res == FR_NO_FILESYSTEM && mp_obj_is_true(mkfs)) {
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uint8_t working_buf[_MAX_SS];
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res = f_mkfs(&self->fatfs, FM_FAT | FM_SFD, 0, working_buf, sizeof(working_buf));
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}
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if (res != FR_OK) {
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mp_raise_OSError(fresult_to_errno_table[res]);
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_3(vfs_fat_mount_obj, vfs_fat_mount);
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STATIC mp_obj_t vfs_fat_umount(mp_obj_t self_in) {
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fs_user_mount_t *self = MP_OBJ_TO_PTR(self_in);
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FRESULT res = f_umount(&self->fatfs);
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|
|
|
if (res != FR_OK) {
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|
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|
mp_raise_OSError(fresult_to_errno_table[res]);
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|
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|
}
|
2016-08-22 14:10:34 +00:00
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|
|
return mp_const_none;
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|
|
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}
|
2017-01-27 04:13:32 +00:00
|
|
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(fat_vfs_umount_obj, vfs_fat_umount);
|
2016-08-22 14:10:34 +00:00
|
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|
2016-02-13 20:51:21 +00:00
|
|
|
STATIC const mp_rom_map_elem_t fat_vfs_locals_dict_table[] = {
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|
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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) },
|
2016-02-28 15:17:24 +00:00
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|
|
{ MP_ROM_QSTR(MP_QSTR_listdir), MP_ROM_PTR(&fat_vfs_listdir_obj) },
|
2016-02-28 22:02:50 +00:00
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|
|
{ MP_ROM_QSTR(MP_QSTR_mkdir), MP_ROM_PTR(&fat_vfs_mkdir_obj) },
|
2016-07-16 00:46:42 +00:00
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|
|
{ MP_ROM_QSTR(MP_QSTR_rmdir), MP_ROM_PTR(&fat_vfs_rmdir_obj) },
|
2016-05-29 15:17:00 +00:00
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|
|
{ MP_ROM_QSTR(MP_QSTR_chdir), MP_ROM_PTR(&fat_vfs_chdir_obj) },
|
2016-05-29 15:23:59 +00:00
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|
|
{ MP_ROM_QSTR(MP_QSTR_getcwd), MP_ROM_PTR(&fat_vfs_getcwd_obj) },
|
2016-02-28 18:30:07 +00:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_remove), MP_ROM_PTR(&fat_vfs_remove_obj) },
|
2016-02-28 23:22:38 +00:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_rename), MP_ROM_PTR(&fat_vfs_rename_obj) },
|
2016-05-30 19:09:20 +00:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_stat), MP_ROM_PTR(&fat_vfs_stat_obj) },
|
2016-09-12 17:13:44 +00:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_statvfs), MP_ROM_PTR(&fat_vfs_statvfs_obj) },
|
2017-01-27 04:13:32 +00:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_mount), MP_ROM_PTR(&vfs_fat_mount_obj) },
|
2016-08-22 14:10:34 +00:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_umount), MP_ROM_PTR(&fat_vfs_umount_obj) },
|
2016-02-13 20:51:21 +00:00
|
|
|
};
|
|
|
|
STATIC MP_DEFINE_CONST_DICT(fat_vfs_locals_dict, fat_vfs_locals_dict_table);
|
|
|
|
|
|
|
|
const mp_obj_type_t mp_fat_vfs_type = {
|
|
|
|
{ &mp_type_type },
|
|
|
|
.name = MP_QSTR_VfsFat,
|
|
|
|
.make_new = fat_vfs_make_new,
|
|
|
|
.locals_dict = (mp_obj_dict_t*)&fat_vfs_locals_dict,
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif // MICROPY_VFS_FAT
|