kopia lustrzana https://github.com/micropython/micropython
146 wiersze
4.7 KiB
C
146 wiersze
4.7 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) 2019-2020 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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#include "py/runtime.h"
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#include "py/mphal.h"
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#if MICROPY_VFS && (MICROPY_VFS_LFS1 || MICROPY_VFS_LFS2)
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#include "shared/timeutils/timeutils.h"
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#include "extmod/vfs.h"
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#include "extmod/vfs_lfs.h"
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enum { LFS_MAKE_ARG_bdev, LFS_MAKE_ARG_readsize, LFS_MAKE_ARG_progsize, LFS_MAKE_ARG_lookahead, LFS_MAKE_ARG_mtime };
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static const mp_arg_t lfs_make_allowed_args[] = {
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{ MP_QSTR_, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
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{ MP_QSTR_readsize, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 32} },
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{ MP_QSTR_progsize, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 32} },
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{ MP_QSTR_lookahead, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 32} },
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{ MP_QSTR_mtime, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = true} },
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};
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#if MICROPY_VFS_LFS1
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#include "lib/littlefs/lfs1.h"
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#define LFS_BUILD_VERSION (1)
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#define LFSx_MACRO(s) LFS1##s
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#define LFSx_API(s) lfs1_##s
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#define MP_VFS_LFSx(s) mp_vfs_lfs1_##s
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#define MP_OBJ_VFS_LFSx mp_obj_vfs_lfs1_t
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#define MP_OBJ_VFS_LFSx_FILE mp_obj_vfs_lfs1_file_t
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#define MP_TYPE_VFS_LFSx mp_type_vfs_lfs1
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#define MP_TYPE_VFS_LFSx_(s) mp_type_vfs_lfs1##s
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typedef struct _mp_obj_vfs_lfs1_t {
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mp_obj_base_t base;
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mp_vfs_blockdev_t blockdev;
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vstr_t cur_dir;
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struct lfs1_config config;
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lfs1_t lfs;
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} mp_obj_vfs_lfs1_t;
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typedef struct _mp_obj_vfs_lfs1_file_t {
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mp_obj_base_t base;
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mp_obj_vfs_lfs1_t *vfs;
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lfs1_file_t file;
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struct lfs1_file_config cfg;
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uint8_t file_buffer[0];
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} mp_obj_vfs_lfs1_file_t;
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const char *mp_vfs_lfs1_make_path(mp_obj_vfs_lfs1_t *self, mp_obj_t path_in);
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mp_obj_t mp_vfs_lfs1_file_open(mp_obj_t self_in, mp_obj_t path_in, mp_obj_t mode_in);
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#include "extmod/vfs_lfsx.c"
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#include "extmod/vfs_lfsx_file.c"
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#undef LFS_BUILD_VERSION
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#undef LFSx_MACRO
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#undef LFSx_API
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#undef MP_VFS_LFSx
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#undef MP_OBJ_VFS_LFSx
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#undef MP_OBJ_VFS_LFSx_FILE
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#undef MP_TYPE_VFS_LFSx
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#undef MP_TYPE_VFS_LFSx_
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#endif // MICROPY_VFS_LFS1
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#if MICROPY_VFS_LFS2
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#include "lib/littlefs/lfs2.h"
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#define LFS_BUILD_VERSION (2)
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#define LFSx_MACRO(s) LFS2##s
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#define LFSx_API(s) lfs2_##s
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#define MP_VFS_LFSx(s) mp_vfs_lfs2_##s
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#define MP_OBJ_VFS_LFSx mp_obj_vfs_lfs2_t
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#define MP_OBJ_VFS_LFSx_FILE mp_obj_vfs_lfs2_file_t
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#define MP_TYPE_VFS_LFSx mp_type_vfs_lfs2
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#define MP_TYPE_VFS_LFSx_(s) mp_type_vfs_lfs2##s
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// Attribute ids for lfs2_attr.type.
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#define LFS_ATTR_MTIME (1) // 64-bit little endian, nanoseconds since 1970/1/1
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typedef struct _mp_obj_vfs_lfs2_t {
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mp_obj_base_t base;
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mp_vfs_blockdev_t blockdev;
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bool enable_mtime;
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vstr_t cur_dir;
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struct lfs2_config config;
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lfs2_t lfs;
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} mp_obj_vfs_lfs2_t;
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typedef struct _mp_obj_vfs_lfs2_file_t {
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mp_obj_base_t base;
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mp_obj_vfs_lfs2_t *vfs;
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uint8_t mtime[8];
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lfs2_file_t file;
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struct lfs2_file_config cfg;
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struct lfs2_attr attrs[1];
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uint8_t file_buffer[0];
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} mp_obj_vfs_lfs2_file_t;
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const char *mp_vfs_lfs2_make_path(mp_obj_vfs_lfs2_t *self, mp_obj_t path_in);
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mp_obj_t mp_vfs_lfs2_file_open(mp_obj_t self_in, mp_obj_t path_in, mp_obj_t mode_in);
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static void lfs_get_mtime(uint8_t buf[8]) {
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// On-disk storage of timestamps uses 1970 as the Epoch, so convert from host's Epoch.
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uint64_t ns = timeutils_nanoseconds_since_epoch_to_nanoseconds_since_1970(mp_hal_time_ns());
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// Store "ns" to "buf" in little-endian format (essentially htole64).
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for (size_t i = 0; i < 8; ++i) {
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buf[i] = ns;
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ns >>= 8;
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}
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}
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#include "extmod/vfs_lfsx.c"
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#include "extmod/vfs_lfsx_file.c"
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#endif // MICROPY_VFS_LFS2
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#endif // MICROPY_VFS && (MICROPY_VFS_LFS1 || MICROPY_VFS_LFS2)
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