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extmod: Add VFS littlefs bindings.

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Both LFS1 and LFS2 are supported at the same time.
This commit is contained in:
Damien George 2019-10-18 17:25:08 +11:00
parent 98beea9ced
commit a099505420
6 changed files with 837 additions and 0 deletions
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16
extmod/extmod.mk
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@ -3,6 +3,22 @@
# this sets the config file for FatFs
CFLAGS_MOD += -DFFCONF_H=\"lib/oofatfs/ffconf.h\"
################################################################################
# VFS littlefs
ifeq ($(MICROPY_VFS_LFS),1)
CFLAGS_MOD += -DMICROPY_VFS_LFS=1
CFLAGS_MOD += -DLFS1_NO_MALLOC -DLFS1_NO_DEBUG -DLFS1_NO_WARN -DLFS1_NO_ERROR -DLFS1_NO_ASSERT
CFLAGS_MOD += -DLFS2_NO_MALLOC -DLFS2_NO_DEBUG -DLFS2_NO_WARN -DLFS2_NO_ERROR -DLFS2_NO_ASSERT
LITTLEFS_DIR = lib/littlefs
SRC_MOD += $(addprefix $(LITTLEFS_DIR)/,\
lfs1.c \
lfs1_util.c \
lfs2.c \
lfs2_util.c \
)
endif
################################################################################
# ussl

117
extmod/vfs_lfs.c Normal file
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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "py/runtime.h"
#include "extmod/vfs.h"
#include "extmod/vfs_lfs.h"
#if MICROPY_VFS && MICROPY_VFS_LFS
enum { LFS_MAKE_ARG_bdev, LFS_MAKE_ARG_readsize, LFS_MAKE_ARG_progsize, LFS_MAKE_ARG_lookahead };
static const mp_arg_t lfs_make_allowed_args[] = {
{ MP_QSTR_, MP_ARG_OBJ },
{ MP_QSTR_readsize, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 32} },
{ MP_QSTR_progsize, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 32} },
{ MP_QSTR_lookahead, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 32} },
};
#include "lib/littlefs/lfs1.h"
#define LFS_BUILD_VERSION (1)
#define LFSx_MACRO(s) LFS1 ## s
#define LFSx_API(s) lfs1_ ## s
#define MP_VFS_LFSx(s) mp_vfs_lfs1_ ## s
#define MP_OBJ_VFS_LFSx mp_obj_vfs_lfs1_t
#define MP_OBJ_VFS_LFSx_FILE mp_obj_vfs_lfs1_file_t
#define MP_TYPE_VFS_LFSx mp_type_vfs_lfs1
#define MP_TYPE_VFS_LFSx_(s) mp_type_vfs_lfs1 ## s
typedef struct _mp_obj_vfs_lfs1_t {
mp_obj_base_t base;
mp_vfs_blockdev_t blockdev;
vstr_t cur_dir;
struct lfs1_config config;
lfs1_t lfs;
} mp_obj_vfs_lfs1_t;
typedef struct _mp_obj_vfs_lfs1_file_t {
mp_obj_base_t base;
mp_obj_vfs_lfs1_t *vfs;
lfs1_file_t file;
struct lfs1_file_config cfg;
uint8_t file_buffer[0];
} mp_obj_vfs_lfs1_file_t;
const char *mp_vfs_lfs1_make_path(mp_obj_vfs_lfs1_t *self, mp_obj_t path_in);
mp_obj_t mp_vfs_lfs1_file_open(mp_obj_t self_in, mp_obj_t path_in, mp_obj_t mode_in);
#include "extmod/vfs_lfsx.c"
#include "extmod/vfs_lfsx_file.c"
#undef LFS_BUILD_VERSION
#undef LFSx_MACRO
#undef LFSx_API
#undef MP_VFS_LFSx
#undef MP_OBJ_VFS_LFSx
#undef MP_OBJ_VFS_LFSx_FILE
#undef MP_TYPE_VFS_LFSx
#undef MP_TYPE_VFS_LFSx_
#include "lib/littlefs/lfs2.h"
#define LFS_BUILD_VERSION (2)
#define LFSx_MACRO(s) LFS2 ## s
#define LFSx_API(s) lfs2_ ## s
#define MP_VFS_LFSx(s) mp_vfs_lfs2_ ## s
#define MP_OBJ_VFS_LFSx mp_obj_vfs_lfs2_t
#define MP_OBJ_VFS_LFSx_FILE mp_obj_vfs_lfs2_file_t
#define MP_TYPE_VFS_LFSx mp_type_vfs_lfs2
#define MP_TYPE_VFS_LFSx_(s) mp_type_vfs_lfs2 ## s
typedef struct _mp_obj_vfs_lfs2_t {
mp_obj_base_t base;
mp_vfs_blockdev_t blockdev;
vstr_t cur_dir;
struct lfs2_config config;
lfs2_t lfs;
} mp_obj_vfs_lfs2_t;
typedef struct _mp_obj_vfs_lfs2_file_t {
mp_obj_base_t base;
mp_obj_vfs_lfs2_t *vfs;
lfs2_file_t file;
struct lfs2_file_config cfg;
uint8_t file_buffer[0];
} mp_obj_vfs_lfs2_file_t;
const char *mp_vfs_lfs2_make_path(mp_obj_vfs_lfs2_t *self, mp_obj_t path_in);
mp_obj_t mp_vfs_lfs2_file_open(mp_obj_t self_in, mp_obj_t path_in, mp_obj_t mode_in);
#include "extmod/vfs_lfsx.c"
#include "extmod/vfs_lfsx_file.c"
#endif // MICROPY_VFS && MICROPY_VFS_LFS

39
extmod/vfs_lfs.h Normal file
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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef MICROPY_INCLUDED_EXTMOD_VFS_LFS_H
#define MICROPY_INCLUDED_EXTMOD_VFS_LFS_H
#include "py/obj.h"
extern const mp_obj_type_t mp_type_vfs_lfs1;
extern const mp_obj_type_t mp_type_vfs_lfs1_fileio;
extern const mp_obj_type_t mp_type_vfs_lfs1_textio;
extern const mp_obj_type_t mp_type_vfs_lfs2;
extern const mp_obj_type_t mp_type_vfs_lfs2_fileio;
extern const mp_obj_type_t mp_type_vfs_lfs2_textio;
#endif // MICROPY_INCLUDED_EXTMOD_VFS_LFS_H

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extmod/vfs_lfsx.c Normal file
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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdio.h>
#include <string.h>
#include "py/runtime.h"
#include "py/stream.h"
#include "py/binary.h"
#include "py/objarray.h"
#include "py/mperrno.h"
#include "extmod/vfs.h"
STATIC int MP_VFS_LFSx(dev_ioctl)(const struct LFSx_API(config) *c, int cmd, int arg, bool must_return_int) {
mp_obj_t ret = mp_vfs_blockdev_ioctl(c->context, cmd, arg);
int ret_i = 0;
if (must_return_int || ret != mp_const_none) {
ret_i = mp_obj_get_int(ret);
}
return ret_i;
}
STATIC int MP_VFS_LFSx(dev_read)(const struct LFSx_API(config) *c, LFSx_API(block_t) block, LFSx_API(off_t) off, void *buffer, LFSx_API(size_t) size) {
return mp_vfs_blockdev_read_ext(c->context, block, off, size, buffer);
}
STATIC int MP_VFS_LFSx(dev_prog)(const struct LFSx_API(config) *c, LFSx_API(block_t) block, LFSx_API(off_t) off, const void *buffer, LFSx_API(size_t) size) {
return mp_vfs_blockdev_write_ext(c->context, block, off, size, buffer);
}
STATIC int MP_VFS_LFSx(dev_erase)(const struct LFSx_API(config) *c, LFSx_API(block_t) block) {
return MP_VFS_LFSx(dev_ioctl)(c, 6, block, true); // erase
}
STATIC int MP_VFS_LFSx(dev_sync)(const struct LFSx_API(config) *c) {
return MP_VFS_LFSx(dev_ioctl)(c, BP_IOCTL_SYNC, 0, false);
}
STATIC void MP_VFS_LFSx(init_config)(MP_OBJ_VFS_LFSx *self, mp_obj_t bdev, size_t read_size, size_t prog_size, size_t lookahead) {
self->blockdev.flags = MP_BLOCKDEV_FLAG_FREE_OBJ;
mp_vfs_blockdev_init(&self->blockdev, bdev);
struct LFSx_API(config) *config = &self->config;
memset(config, 0, sizeof(*config));
config->context = &self->blockdev;
config->read = MP_VFS_LFSx(dev_read);
config->prog = MP_VFS_LFSx(dev_prog);
config->erase = MP_VFS_LFSx(dev_erase);
config->sync = MP_VFS_LFSx(dev_sync);
MP_VFS_LFSx(dev_ioctl)(config, BP_IOCTL_INIT, 0, false); // initialise block device
int bs = MP_VFS_LFSx(dev_ioctl)(config, BP_IOCTL_SEC_SIZE, 0, true); // get block size
int bc = MP_VFS_LFSx(dev_ioctl)(config, BP_IOCTL_SEC_COUNT, 0, true); // get block count
self->blockdev.block_size = bs;
config->read_size = read_size;
config->prog_size = prog_size;
config->block_size = bs;
config->block_count = bc;
#if LFS_BUILD_VERSION == 1
config->lookahead = lookahead;
config->read_buffer = m_new(uint8_t, config->read_size);
config->prog_buffer = m_new(uint8_t, config->prog_size);
config->lookahead_buffer = m_new(uint8_t, config->lookahead / 8);
#else
config->block_cycles = 100;
config->cache_size = 4 * MAX(read_size, prog_size);
config->lookahead_size = lookahead;
config->read_buffer = m_new(uint8_t, config->cache_size);
config->prog_buffer = m_new(uint8_t, config->cache_size);
config->lookahead_buffer = m_new(uint8_t, config->lookahead_size);
#endif
}
const char *MP_VFS_LFSx(make_path)(MP_OBJ_VFS_LFSx *self, mp_obj_t path_in) {
const char *path = mp_obj_str_get_str(path_in);
if (path[0] != '/') {
size_t l = vstr_len(&self->cur_dir);
if (l > 0) {
vstr_add_str(&self->cur_dir, path);
path = vstr_null_terminated_str(&self->cur_dir);
self->cur_dir.len = l;
}
}
return path;
}
STATIC mp_obj_t MP_VFS_LFSx(make_new)(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
mp_arg_val_t args[MP_ARRAY_SIZE(lfs_make_allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(lfs_make_allowed_args), lfs_make_allowed_args, args);
MP_OBJ_VFS_LFSx *self = m_new0(MP_OBJ_VFS_LFSx, 1);
self->base.type = type;
vstr_init(&self->cur_dir, 16);
vstr_add_byte(&self->cur_dir, '/');
MP_VFS_LFSx(init_config)(self, args[LFS_MAKE_ARG_bdev].u_obj,
args[LFS_MAKE_ARG_readsize].u_int, args[LFS_MAKE_ARG_progsize].u_int, args[LFS_MAKE_ARG_lookahead].u_int);
int ret = LFSx_API(mount)(&self->lfs, &self->config);
if (ret < 0) {
mp_raise_OSError(-ret);
}
return MP_OBJ_FROM_PTR(self);
}
STATIC mp_obj_t MP_VFS_LFSx(mkfs)(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
mp_arg_val_t args[MP_ARRAY_SIZE(lfs_make_allowed_args)];
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(lfs_make_allowed_args), lfs_make_allowed_args, args);
MP_OBJ_VFS_LFSx self;
MP_VFS_LFSx(init_config)(&self, args[LFS_MAKE_ARG_bdev].u_obj,
args[LFS_MAKE_ARG_readsize].u_int, args[LFS_MAKE_ARG_progsize].u_int, args[LFS_MAKE_ARG_lookahead].u_int);
int ret = LFSx_API(format)(&self.lfs, &self.config);
if (ret < 0) {
mp_raise_OSError(-ret);
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(MP_VFS_LFSx(mkfs_fun_obj), 0, MP_VFS_LFSx(mkfs));
STATIC MP_DEFINE_CONST_STATICMETHOD_OBJ(MP_VFS_LFSx(mkfs_obj), MP_ROM_PTR(&MP_VFS_LFSx(mkfs_fun_obj)));
// Implementation of mp_vfs_lfs_file_open is provided in vfs_lfsx_file.c
STATIC MP_DEFINE_CONST_FUN_OBJ_3(MP_VFS_LFSx(open_obj), MP_VFS_LFSx(file_open));
typedef struct MP_VFS_LFSx(_ilistdir_it_t) {
mp_obj_base_t base;
mp_fun_1_t iternext;
bool is_str;
MP_OBJ_VFS_LFSx *vfs;
LFSx_API(dir_t) dir;
} MP_VFS_LFSx(ilistdir_it_t);
STATIC mp_obj_t MP_VFS_LFSx(ilistdir_it_iternext)(mp_obj_t self_in) {
MP_VFS_LFSx(ilistdir_it_t) *self = MP_OBJ_TO_PTR(self_in);
struct LFSx_API(info) info;
for (;;) {
int ret = LFSx_API(dir_read)(&self->vfs->lfs, &self->dir, &info);
if (ret == 0) {
LFSx_API(dir_close)(&self->vfs->lfs, &self->dir);
return MP_OBJ_STOP_ITERATION;
}
if (!(info.name[0] == '.' && (info.name[1] == '\0'
|| (info.name[1] == '.' && info.name[2] == '\0')))) {
break;
}
}
// make 4-tuple with info about this entry
mp_obj_tuple_t *t = MP_OBJ_TO_PTR(mp_obj_new_tuple(4, NULL));
if (self->is_str) {
t->items[0] = mp_obj_new_str(info.name, strlen(info.name));
} else {
t->items[0] = mp_obj_new_bytes((const byte*)info.name, strlen(info.name));
}
t->items[1] = MP_OBJ_NEW_SMALL_INT(info.type == LFSx_MACRO(_TYPE_REG) ? MP_S_IFREG : MP_S_IFDIR);
t->items[2] = MP_OBJ_NEW_SMALL_INT(0); // no inode number
t->items[3] = MP_OBJ_NEW_SMALL_INT(info.size);
return MP_OBJ_FROM_PTR(t);
}
STATIC mp_obj_t MP_VFS_LFSx(ilistdir_func)(size_t n_args, const mp_obj_t *args) {
MP_OBJ_VFS_LFSx *self = MP_OBJ_TO_PTR(args[0]);
bool is_str_type = true;
const char *path;
if (n_args == 2) {
if (mp_obj_get_type(args[1]) == &mp_type_bytes) {
is_str_type = false;
}
path = MP_VFS_LFSx(make_path)(self, args[1]);
} else {
path = vstr_null_terminated_str(&self->cur_dir);
}
MP_VFS_LFSx(ilistdir_it_t) *iter = m_new_obj(MP_VFS_LFSx(ilistdir_it_t));
iter->base.type = &mp_type_polymorph_iter;
iter->iternext = MP_VFS_LFSx(ilistdir_it_iternext);
iter->is_str = is_str_type;
iter->vfs = self;
int ret = LFSx_API(dir_open)(&self->lfs, &iter->dir, path);
if (ret < 0) {
mp_raise_OSError(-ret);
}
return MP_OBJ_FROM_PTR(iter);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(MP_VFS_LFSx(ilistdir_obj), 1, 2, MP_VFS_LFSx(ilistdir_func));
STATIC mp_obj_t MP_VFS_LFSx(remove)(mp_obj_t self_in, mp_obj_t path_in) {
MP_OBJ_VFS_LFSx *self = MP_OBJ_TO_PTR(self_in);
const char *path = MP_VFS_LFSx(make_path)(self, path_in);
int ret = LFSx_API(remove)(&self->lfs, path);
if (ret < 0) {
mp_raise_OSError(-ret);
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(MP_VFS_LFSx(remove_obj), MP_VFS_LFSx(remove));
STATIC mp_obj_t MP_VFS_LFSx(rmdir)(mp_obj_t self_in, mp_obj_t path_in) {
MP_OBJ_VFS_LFSx *self = MP_OBJ_TO_PTR(self_in);
const char *path = MP_VFS_LFSx(make_path)(self, path_in);
int ret = LFSx_API(remove)(&self->lfs, path);
if (ret < 0) {
mp_raise_OSError(-ret);
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(MP_VFS_LFSx(rmdir_obj), MP_VFS_LFSx(rmdir));
STATIC mp_obj_t MP_VFS_LFSx(rename)(mp_obj_t self_in, mp_obj_t path_old_in, mp_obj_t path_new_in) {
MP_OBJ_VFS_LFSx *self = MP_OBJ_TO_PTR(self_in);
const char *path_old = MP_VFS_LFSx(make_path)(self, path_old_in);
vstr_t path_new;
vstr_init(&path_new, vstr_len(&self->cur_dir));
vstr_add_strn(&path_new, vstr_str(&self->cur_dir), vstr_len(&self->cur_dir));
vstr_add_str(&path_new, mp_obj_str_get_str(path_new_in));
int ret = LFSx_API(rename)(&self->lfs, path_old, vstr_null_terminated_str(&path_new));
vstr_clear(&path_new);
if (ret < 0) {
mp_raise_OSError(-ret);
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_3(MP_VFS_LFSx(rename_obj), MP_VFS_LFSx(rename));
STATIC mp_obj_t MP_VFS_LFSx(mkdir)(mp_obj_t self_in, mp_obj_t path_o) {
MP_OBJ_VFS_LFSx *self = MP_OBJ_TO_PTR(self_in);
const char *path = MP_VFS_LFSx(make_path)(self, path_o);
int ret = LFSx_API(mkdir)(&self->lfs, path);
if (ret < 0) {
mp_raise_OSError(-ret);
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(MP_VFS_LFSx(mkdir_obj), MP_VFS_LFSx(mkdir));
STATIC mp_obj_t MP_VFS_LFSx(chdir)(mp_obj_t self_in, mp_obj_t path_in) {
MP_OBJ_VFS_LFSx *self = MP_OBJ_TO_PTR(self_in);
// Check path exists
const char *path = MP_VFS_LFSx(make_path)(self, path_in);
if (path[1] != '\0') {
// Not at root, check it exists
struct LFSx_API(info) info;
int ret = LFSx_API(stat)(&self->lfs, path, &info);
if (ret < 0 || info.type != LFSx_MACRO(_TYPE_DIR)) {
mp_raise_OSError(-MP_ENOENT);
}
}
// Update cur_dir with new path
if (path == vstr_str(&self->cur_dir)) {
self->cur_dir.len = strlen(path);
} else {
vstr_reset(&self->cur_dir);
vstr_add_str(&self->cur_dir, path);
}
// If not at root add trailing / to make it easy to build paths
if (vstr_len(&self->cur_dir) != 1) {
vstr_add_byte(&self->cur_dir, '/');
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(MP_VFS_LFSx(chdir_obj), MP_VFS_LFSx(chdir));
STATIC mp_obj_t MP_VFS_LFSx(getcwd)(mp_obj_t self_in) {
MP_OBJ_VFS_LFSx *self = MP_OBJ_TO_PTR(self_in);
if (vstr_len(&self->cur_dir) == 1) {
return MP_OBJ_NEW_QSTR(MP_QSTR__slash_);
} else {
// don't include trailing /
return mp_obj_new_str(self->cur_dir.buf, self->cur_dir.len - 1);
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(MP_VFS_LFSx(getcwd_obj), MP_VFS_LFSx(getcwd));
STATIC mp_obj_t MP_VFS_LFSx(stat)(mp_obj_t self_in, mp_obj_t path_in) {
MP_OBJ_VFS_LFSx *self = MP_OBJ_TO_PTR(self_in);
const char *path = mp_obj_str_get_str(path_in);
struct LFSx_API(info) info;
int ret = LFSx_API(stat)(&self->lfs, path, &info);
if (ret < 0) {
mp_raise_OSError(-ret);
}
mp_obj_tuple_t *t = MP_OBJ_TO_PTR(mp_obj_new_tuple(10, NULL));
t->items[0] = MP_OBJ_NEW_SMALL_INT(info.type == LFSx_MACRO(_TYPE_REG) ? MP_S_IFREG : MP_S_IFDIR); // st_mode
t->items[1] = MP_OBJ_NEW_SMALL_INT(0); // st_ino
t->items[2] = MP_OBJ_NEW_SMALL_INT(0); // st_dev
t->items[3] = MP_OBJ_NEW_SMALL_INT(0); // st_nlink
t->items[4] = MP_OBJ_NEW_SMALL_INT(0); // st_uid
t->items[5] = MP_OBJ_NEW_SMALL_INT(0); // st_gid
t->items[6] = mp_obj_new_int_from_uint(info.size); // st_size
t->items[7] = MP_OBJ_NEW_SMALL_INT(0); // st_atime
t->items[8] = MP_OBJ_NEW_SMALL_INT(0); // st_mtime
t->items[9] = MP_OBJ_NEW_SMALL_INT(0); // st_ctime
return MP_OBJ_FROM_PTR(t);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(MP_VFS_LFSx(stat_obj), MP_VFS_LFSx(stat));
STATIC int LFSx_API(traverse_cb)(void *data, LFSx_API(block_t) bl) {
(void)bl;
uint32_t *n = (uint32_t*)data;
*n += 1;
return LFSx_MACRO(_ERR_OK);
}
STATIC mp_obj_t MP_VFS_LFSx(statvfs)(mp_obj_t self_in, mp_obj_t path_in) {
(void)path_in;
MP_OBJ_VFS_LFSx *self = MP_OBJ_TO_PTR(self_in);
uint32_t n_used_blocks = 0;
#if LFS_BUILD_VERSION == 1
int ret = LFSx_API(traverse)(&self->lfs, LFSx_API(traverse_cb), &n_used_blocks);
#else
int ret = LFSx_API(fs_traverse)(&self->lfs, LFSx_API(traverse_cb), &n_used_blocks);
#endif
if (ret < 0) {
mp_raise_OSError(-ret);
}
mp_obj_tuple_t *t = MP_OBJ_TO_PTR(mp_obj_new_tuple(10, NULL));
t->items[0] = MP_OBJ_NEW_SMALL_INT(self->lfs.cfg->block_size); // f_bsize
t->items[1] = t->items[0]; // f_frsize
t->items[2] = MP_OBJ_NEW_SMALL_INT(self->lfs.cfg->block_count); // f_blocks
t->items[3] = MP_OBJ_NEW_SMALL_INT(self->lfs.cfg->block_count - n_used_blocks); // f_bfree
t->items[4] = t->items[3]; // f_bavail
t->items[5] = MP_OBJ_NEW_SMALL_INT(0); // f_files
t->items[6] = MP_OBJ_NEW_SMALL_INT(0); // f_ffree
t->items[7] = MP_OBJ_NEW_SMALL_INT(0); // f_favail
t->items[8] = MP_OBJ_NEW_SMALL_INT(0); // f_flags
t->items[9] = MP_OBJ_NEW_SMALL_INT(LFSx_MACRO(_NAME_MAX)); // f_namemax
return MP_OBJ_FROM_PTR(t);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(MP_VFS_LFSx(statvfs_obj), MP_VFS_LFSx(statvfs));
STATIC mp_obj_t MP_VFS_LFSx(mount)(mp_obj_t self_in, mp_obj_t readonly, mp_obj_t mkfs) {
(void)self_in;
(void)readonly;
(void)mkfs;
// already called LFSx_API(mount) in MP_VFS_LFSx(make_new)
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_3(MP_VFS_LFSx(mount_obj), MP_VFS_LFSx(mount));
STATIC mp_obj_t MP_VFS_LFSx(umount)(mp_obj_t self_in) {
MP_OBJ_VFS_LFSx *self = MP_OBJ_TO_PTR(self_in);
// LFS unmount never fails
LFSx_API(unmount)(&self->lfs);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(MP_VFS_LFSx(umount_obj), MP_VFS_LFSx(umount));
STATIC const mp_rom_map_elem_t MP_VFS_LFSx(locals_dict_table)[] = {
{ MP_ROM_QSTR(MP_QSTR_mkfs), MP_ROM_PTR(&MP_VFS_LFSx(mkfs_obj)) },
{ MP_ROM_QSTR(MP_QSTR_open), MP_ROM_PTR(&MP_VFS_LFSx(open_obj)) },
{ MP_ROM_QSTR(MP_QSTR_ilistdir), MP_ROM_PTR(&MP_VFS_LFSx(ilistdir_obj)) },
{ MP_ROM_QSTR(MP_QSTR_mkdir), MP_ROM_PTR(&MP_VFS_LFSx(mkdir_obj)) },
{ MP_ROM_QSTR(MP_QSTR_rmdir), MP_ROM_PTR(&MP_VFS_LFSx(rmdir_obj)) },
{ MP_ROM_QSTR(MP_QSTR_chdir), MP_ROM_PTR(&MP_VFS_LFSx(chdir_obj)) },
{ MP_ROM_QSTR(MP_QSTR_getcwd), MP_ROM_PTR(&MP_VFS_LFSx(getcwd_obj)) },
{ MP_ROM_QSTR(MP_QSTR_remove), MP_ROM_PTR(&MP_VFS_LFSx(remove_obj)) },
{ MP_ROM_QSTR(MP_QSTR_rename), MP_ROM_PTR(&MP_VFS_LFSx(rename_obj)) },
{ MP_ROM_QSTR(MP_QSTR_stat), MP_ROM_PTR(&MP_VFS_LFSx(stat_obj)) },
{ MP_ROM_QSTR(MP_QSTR_statvfs), MP_ROM_PTR(&MP_VFS_LFSx(statvfs_obj)) },
{ MP_ROM_QSTR(MP_QSTR_mount), MP_ROM_PTR(&MP_VFS_LFSx(mount_obj)) },
{ MP_ROM_QSTR(MP_QSTR_umount), MP_ROM_PTR(&MP_VFS_LFSx(umount_obj)) },
};
STATIC MP_DEFINE_CONST_DICT(MP_VFS_LFSx(locals_dict), MP_VFS_LFSx(locals_dict_table));
STATIC mp_import_stat_t MP_VFS_LFSx(import_stat)(void *self_in, const char *path) {
MP_OBJ_VFS_LFSx *self = self_in;
struct LFSx_API(info) info;
int ret = LFSx_API(stat)(&self->lfs, path, &info);
if (ret == 0) {
if (info.type == LFSx_MACRO(_TYPE_REG)) {
return MP_IMPORT_STAT_FILE;
} else {
return MP_IMPORT_STAT_DIR;
}
}
return MP_IMPORT_STAT_NO_EXIST;
}
STATIC const mp_vfs_proto_t MP_VFS_LFSx(proto) = {
.import_stat = MP_VFS_LFSx(import_stat),
};
const mp_obj_type_t MP_TYPE_VFS_LFSx = {
{ &mp_type_type },
#if LFS_BUILD_VERSION == 1
.name = MP_QSTR_VfsLfs1,
#else
.name = MP_QSTR_VfsLfs2,
#endif
.make_new = MP_VFS_LFSx(make_new),
.protocol = &MP_VFS_LFSx(proto),
.locals_dict = (mp_obj_dict_t*)&MP_VFS_LFSx(locals_dict),
};

236
extmod/vfs_lfsx_file.c Normal file
View File

@ -0,0 +1,236 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdio.h>
#include <string.h>
#include "py/runtime.h"
#include "py/stream.h"
#include "py/mperrno.h"
#include "extmod/vfs.h"
STATIC void MP_VFS_LFSx(check_open)(MP_OBJ_VFS_LFSx_FILE *self) {
if (self->vfs == NULL) {
mp_raise_ValueError(NULL);
}
}
STATIC void MP_VFS_LFSx(file_print)(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
(void)self_in;
(void)kind;
mp_printf(print, "<io.%s>", mp_obj_get_type_str(self_in));
}
mp_obj_t MP_VFS_LFSx(file_open)(mp_obj_t self_in, mp_obj_t path_in, mp_obj_t mode_in) {
MP_OBJ_VFS_LFSx *self = MP_OBJ_TO_PTR(self_in);
int flags = 0;
const mp_obj_type_t *type = &MP_TYPE_VFS_LFSx_(_textio);
const char *mode_str = mp_obj_str_get_str(mode_in);
for (; *mode_str; ++mode_str) {
int new_flags = 0;
switch (*mode_str) {
case 'r':
new_flags = LFSx_MACRO(_O_RDONLY);
break;
case 'w':
new_flags = LFSx_MACRO(_O_WRONLY) | LFSx_MACRO(_O_CREAT) | LFSx_MACRO(_O_TRUNC);
break;
case 'x':
new_flags = LFSx_MACRO(_O_WRONLY) | LFSx_MACRO(_O_CREAT) | LFSx_MACRO(_O_EXCL);
break;
case 'a':
new_flags = LFSx_MACRO(_O_WRONLY) | LFSx_MACRO(_O_CREAT) | LFSx_MACRO(_O_APPEND);
break;
case '+':
flags |= LFSx_MACRO(_O_RDWR);
break;
#if MICROPY_PY_IO_FILEIO
case 'b':
type = &MP_TYPE_VFS_LFSx_(_fileio);
break;
#endif
case 't':
type = &MP_TYPE_VFS_LFSx_(_textio);
break;
}
if (new_flags) {
if (flags) {
mp_raise_ValueError(NULL);
}
flags = new_flags;
}
}
if (flags == 0) {
flags = LFSx_MACRO(_O_RDONLY);
}
#if LFS_BUILD_VERSION == 1
MP_OBJ_VFS_LFSx_FILE *o = m_new_obj_var_with_finaliser(MP_OBJ_VFS_LFSx_FILE, uint8_t, self->lfs.cfg->prog_size);
#else
MP_OBJ_VFS_LFSx_FILE *o = m_new_obj_var_with_finaliser(MP_OBJ_VFS_LFSx_FILE, uint8_t, self->lfs.cfg->cache_size);
#endif
o->base.type = type;
o->vfs = self;
#if !MICROPY_GC_CONSERVATIVE_CLEAR
memset(&o->file, 0, sizeof(o->file));
memset(&o->cfg, 0, sizeof(o->cfg));
#endif
o->cfg.buffer = &o->file_buffer[0];
const char *path = MP_VFS_LFSx(make_path)(self, path_in);
int ret = LFSx_API(file_opencfg)(&self->lfs, &o->file, path, flags, &o->cfg);
if (ret < 0) {
o->vfs = NULL;
mp_raise_OSError(-ret);
}
return MP_OBJ_FROM_PTR(o);
}
STATIC mp_obj_t MP_VFS_LFSx(file___exit__)(size_t n_args, const mp_obj_t *args) {
(void)n_args;
return mp_stream_close(args[0]);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(MP_VFS_LFSx(file___exit___obj), 4, 4, MP_VFS_LFSx(file___exit__));
STATIC mp_uint_t MP_VFS_LFSx(file_read)(mp_obj_t self_in, void *buf, mp_uint_t size, int *errcode) {
MP_OBJ_VFS_LFSx_FILE *self = MP_OBJ_TO_PTR(self_in);
MP_VFS_LFSx(check_open)(self);
LFSx_API(ssize_t) sz = LFSx_API(file_read)(&self->vfs->lfs, &self->file, buf, size);
if (sz < 0) {
*errcode = -sz;
return MP_STREAM_ERROR;
}
return sz;
}
STATIC mp_uint_t MP_VFS_LFSx(file_write)(mp_obj_t self_in, const void *buf, mp_uint_t size, int *errcode) {
MP_OBJ_VFS_LFSx_FILE *self = MP_OBJ_TO_PTR(self_in);
MP_VFS_LFSx(check_open)(self);
LFSx_API(ssize_t) sz = LFSx_API(file_write)(&self->vfs->lfs, &self->file, buf, size);
if (sz < 0) {
*errcode = -sz;
return MP_STREAM_ERROR;
}
return sz;
}
STATIC mp_uint_t MP_VFS_LFSx(file_ioctl)(mp_obj_t self_in, mp_uint_t request, uintptr_t arg, int *errcode) {
MP_OBJ_VFS_LFSx_FILE *self = MP_OBJ_TO_PTR(self_in);
if (request != MP_STREAM_CLOSE) {
MP_VFS_LFSx(check_open)(self);
}
if (request == MP_STREAM_SEEK) {
struct mp_stream_seek_t *s = (struct mp_stream_seek_t*)(uintptr_t)arg;
int res = LFSx_API(file_seek)(&self->vfs->lfs, &self->file, s->offset, s->whence);
if (res < 0) {
*errcode = -res;
return MP_STREAM_ERROR;
}
res = LFSx_API(file_tell)(&self->vfs->lfs, &self->file);
if (res < 0) {
*errcode = -res;
return MP_STREAM_ERROR;
}
s->offset = res;
return 0;
} else if (request == MP_STREAM_FLUSH) {
int res = LFSx_API(file_sync)(&self->vfs->lfs, &self->file);
if (res < 0) {
*errcode = -res;
return MP_STREAM_ERROR;
}
return 0;
} else if (request == MP_STREAM_CLOSE) {
if (self->vfs == NULL) {
return 0;
}
int res = LFSx_API(file_close)(&self->vfs->lfs, &self->file);
self->vfs = NULL; // indicate a closed file
if (res < 0) {
*errcode = -res;
return MP_STREAM_ERROR;
}
return 0;
} else {
*errcode = MP_EINVAL;
return MP_STREAM_ERROR;
}
}
STATIC const mp_rom_map_elem_t MP_VFS_LFSx(file_locals_dict_table)[] = {
{ MP_ROM_QSTR(MP_QSTR_read), MP_ROM_PTR(&mp_stream_read_obj) },
{ MP_ROM_QSTR(MP_QSTR_readinto), MP_ROM_PTR(&mp_stream_readinto_obj) },
{ MP_ROM_QSTR(MP_QSTR_readline), MP_ROM_PTR(&mp_stream_unbuffered_readline_obj) },
{ MP_ROM_QSTR(MP_QSTR_readlines), MP_ROM_PTR(&mp_stream_unbuffered_readlines_obj) },
{ MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&mp_stream_write_obj) },
{ MP_ROM_QSTR(MP_QSTR_flush), MP_ROM_PTR(&mp_stream_flush_obj) },
{ MP_ROM_QSTR(MP_QSTR_close), MP_ROM_PTR(&mp_stream_close_obj) },
{ MP_ROM_QSTR(MP_QSTR_seek), MP_ROM_PTR(&mp_stream_seek_obj) },
{ MP_ROM_QSTR(MP_QSTR_tell), MP_ROM_PTR(&mp_stream_tell_obj) },
{ MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&mp_stream_close_obj) },
{ MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&mp_identity_obj) },
{ MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&MP_VFS_LFSx(file___exit___obj)) },
};
STATIC MP_DEFINE_CONST_DICT(MP_VFS_LFSx(file_locals_dict), MP_VFS_LFSx(file_locals_dict_table));
#if MICROPY_PY_IO_FILEIO
STATIC const mp_stream_p_t MP_VFS_LFSx(fileio_stream_p) = {
.read = MP_VFS_LFSx(file_read),
.write = MP_VFS_LFSx(file_write),
.ioctl = MP_VFS_LFSx(file_ioctl),
};
const mp_obj_type_t MP_TYPE_VFS_LFSx_(_fileio) = {
{ &mp_type_type },
.name = MP_QSTR_FileIO,
.print = MP_VFS_LFSx(file_print),
.getiter = mp_identity_getiter,
.iternext = mp_stream_unbuffered_iter,
.protocol = &MP_VFS_LFSx(fileio_stream_p),
.locals_dict = (mp_obj_dict_t*)&MP_VFS_LFSx(file_locals_dict),
};
#endif
STATIC const mp_stream_p_t MP_VFS_LFSx(textio_stream_p) = {
.read = MP_VFS_LFSx(file_read),
.write = MP_VFS_LFSx(file_write),
.ioctl = MP_VFS_LFSx(file_ioctl),
.is_text = true,
};
const mp_obj_type_t MP_TYPE_VFS_LFSx_(_textio) = {
{ &mp_type_type },
.name = MP_QSTR_TextIOWrapper,
.print = MP_VFS_LFSx(file_print),
.getiter = mp_identity_getiter,
.iternext = mp_stream_unbuffered_iter,
.protocol = &MP_VFS_LFSx(textio_stream_p),
.locals_dict = (mp_obj_dict_t*)&MP_VFS_LFSx(file_locals_dict),
};

1
py/py.mk
View File

@ -192,6 +192,7 @@ PY_EXTMOD_O_BASENAME = \
extmod/vfs_fat.o \
extmod/vfs_fat_diskio.o \
extmod/vfs_fat_file.o \
extmod/vfs_lfs.o \
extmod/utime_mphal.o \
extmod/uos_dupterm.o \
lib/embed/abort_.o \