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stmhal: Convert to use VFS sub-system and new ooFatFs component.

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This patch makes the following configuration changes:
- MICROPY_FSUSERMOUNT is disabled, removing old mounting infrastructure
- MICROPY_VFS is enabled, giving new VFS sub-system
- MICROPY_VFS_FAT is enabled, giving uos.VfsFat type
- MICROPY_FATFS_OO is enabled, to use new ooFatFs lib, R0.12b

User facing API should be almost unchanged.  Most notable changes are
removal of os.mkfs (use os.VfsFat.mkfs instead) and pyb.mount doesn't
allow unmounting by passing None as the device.
This commit is contained in:
Damien George 2017-01-27 23:11:59 +11:00
parent 3242cf2d36
commit 84c614e729
11 changed files with 114 additions and 421 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
stmhal/Makefile
View File

@ -26,7 +26,7 @@ CMSIS_DIR=cmsis
HAL_DIR=hal/$(MCU_SERIES)
USBDEV_DIR=usbdev
#USBHOST_DIR=usbhost
FATFS_DIR=lib/fatfs
FATFS_DIR=lib/oofatfs
DFU=../tools/dfu.py
# may need to prefix dfu-util with sudo
USE_PYDFU ?= 1
@ -109,8 +109,8 @@ SRC_LIB = $(addprefix lib/,\
libm/sf_erf.c \
libm/wf_lgamma.c \
libm/wf_tgamma.c \
fatfs/ff.c \
fatfs/option/ccsbcs.c \
oofatfs/ff.c \
oofatfs/option/unicode.c \
mp-readline/readline.c \
netutils/netutils.c \
timeutils/timeutils.c \
@ -159,14 +159,12 @@ SRC_C = \
modutime.c \
modusocket.c \
modnetwork.c \
import.c \
extint.c \
usrsw.c \
rng.c \
rtc.c \
flash.c \
storage.c \
builtin_open.c \
sdcard.c \
fatfs_port.c \
lcd.c \

30
stmhal/builtin_open.c
View File

@ -1,30 +0,0 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 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_fat.h"
MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_open_obj, 1, fatfs_builtin_open);

15
stmhal/fatfs_port.c
View File

@ -24,23 +24,10 @@
* THE SOFTWARE.
*/
#include "py/mphal.h"
#include "py/runtime.h"
#include "lib/fatfs/ff.h" /* FatFs lower layer API */
#include "lib/fatfs/diskio.h" /* FatFs lower layer API */
#include "lib/oofatfs/ff.h"
#include "rtc.h"
const PARTITION VolToPart[MICROPY_FATFS_VOLUMES] = {
{0, 1}, // Logical drive 0 ==> Physical drive 0, 1st partition
{1, 0}, // Logical drive 1 ==> Physical drive 1 (auto detection)
{2, 0}, // Logical drive 2 ==> Physical drive 2 (auto detection)
{3, 0}, // Logical drive 3 ==> Physical drive 3 (auto detection)
/*
{0, 2}, // Logical drive 2 ==> Physical drive 0, 2nd partition
{0, 3}, // Logical drive 3 ==> Physical drive 0, 3rd partition
*/
};
DWORD get_fattime(void) {
rtc_init_finalise();
RTC_TimeTypeDef time;

35
stmhal/import.c
View File

@ -1,35 +0,0 @@
/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 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 "py/lexer.h"
#include "lib/fatfs/ff.h"
#include "extmod/vfs_fat.h"
mp_import_stat_t mp_import_stat(const char *path) {
return fat_vfs_import_stat(NULL, path);
}

99
stmhal/main.c
View File

@ -37,7 +37,8 @@
#include "py/mphal.h"
#include "lib/utils/pyexec.h"
#include "lib/fatfs/ff.h"
#include "lib/oofatfs/ff.h"
#include "extmod/vfs.h"
#include "extmod/fsusermount.h"
#include "systick.h"
@ -67,6 +68,7 @@
void SystemClock_Config(void);
fs_user_mount_t fs_user_mount_flash;
mp_vfs_mount_t mp_vfs_mount_flash;
void flash_error(int n) {
for (int i = 0; i < n; i++) {
@ -168,17 +170,14 @@ static const char fresh_readme_txt[] =
// avoid inlining to avoid stack usage within main()
MP_NOINLINE STATIC void init_flash_fs(uint reset_mode) {
// init the vfs object
fs_user_mount_t *vfs = &fs_user_mount_flash;
vfs->str = "/flash";
vfs->len = 6;
vfs->flags = 0;
pyb_flash_init_vfs(vfs);
// put the flash device in slot 0 (it will be unused at this point)
MP_STATE_PORT(fs_user_mount)[0] = vfs;
fs_user_mount_t *vfs_fat = &fs_user_mount_flash;
vfs_fat->str = NULL;
vfs_fat->len = 0;
vfs_fat->flags = 0;
pyb_flash_init_vfs(vfs_fat);
// try to mount the flash
FRESULT res = f_mount(&vfs->fatfs, vfs->str, 1);
FRESULT res = f_mount(&vfs_fat->fatfs);
if (reset_mode == 3 || res == FR_NO_FILESYSTEM) {
// no filesystem, or asked to reset it, so create a fresh one
@ -187,33 +186,33 @@ MP_NOINLINE STATIC void init_flash_fs(uint reset_mode) {
led_state(PYB_LED_R2, 1);
uint32_t start_tick = HAL_GetTick();
res = f_mkfs("/flash", 0, 0);
uint8_t working_buf[_MAX_SS];
res = f_mkfs(&vfs_fat->fatfs, FM_FAT, 0, working_buf, sizeof(working_buf));
if (res == FR_OK) {
// success creating fresh LFS
} else {
printf("PYB: can't create flash filesystem\n");
MP_STATE_PORT(fs_user_mount)[0] = NULL;
return;
}
// set label
f_setlabel("/flash/pybflash");
f_setlabel(&vfs_fat->fatfs, "pybflash");
// create empty main.py
FIL fp;
f_open(&fp, "/flash/main.py", FA_WRITE | FA_CREATE_ALWAYS);
f_open(&vfs_fat->fatfs, &fp, "/main.py", FA_WRITE | FA_CREATE_ALWAYS);
UINT n;
f_write(&fp, fresh_main_py, sizeof(fresh_main_py) - 1 /* don't count null terminator */, &n);
// TODO check we could write n bytes
f_close(&fp);
// create .inf driver file
f_open(&fp, "/flash/pybcdc.inf", FA_WRITE | FA_CREATE_ALWAYS);
f_open(&vfs_fat->fatfs, &fp, "/pybcdc.inf", FA_WRITE | FA_CREATE_ALWAYS);
f_write(&fp, fresh_pybcdc_inf, sizeof(fresh_pybcdc_inf) - 1 /* don't count null terminator */, &n);
f_close(&fp);
// create readme file
f_open(&fp, "/flash/README.txt", FA_WRITE | FA_CREATE_ALWAYS);
f_open(&vfs_fat->fatfs, &fp, "/README.txt", FA_WRITE | FA_CREATE_ALWAYS);
f_write(&fp, fresh_readme_txt, sizeof(fresh_readme_txt) - 1 /* don't count null terminator */, &n);
f_close(&fp);
@ -224,30 +223,25 @@ MP_NOINLINE STATIC void init_flash_fs(uint reset_mode) {
// mount sucessful
} else {
printf("PYB: can't mount flash\n");
MP_STATE_PORT(fs_user_mount)[0] = NULL;
return;
}
// mount the flash device (there should be no other devices mounted at this point)
mp_vfs_mount_t *vfs = &mp_vfs_mount_flash;
vfs->str = "/flash";
vfs->len = 6;
vfs->obj = MP_OBJ_FROM_PTR(vfs_fat);
vfs->next = NULL;
MP_STATE_VM(vfs_mount_table) = vfs;
// The current directory is used as the boot up directory.
// It is set to the internal flash filesystem by default.
f_chdrive("/flash");
MP_STATE_PORT(vfs_cur) = vfs;
// Make sure we have a /flash/boot.py. Create it if needed.
FILINFO fno;
#if _USE_LFN
fno.lfname = NULL;
fno.lfsize = 0;
#endif
res = f_stat("/flash/boot.py", &fno);
if (res == FR_OK) {
if (fno.fattrib & AM_DIR) {
// exists as a directory
// TODO handle this case
// see http://elm-chan.org/fsw/ff/img/app2.c for a "rm -rf" implementation
} else {
// exists as a file, good!
}
} else {
res = f_stat(&vfs_fat->fatfs, "/boot.py", &fno);
if (res != FR_OK) {
// doesn't exist, create fresh file
// LED on to indicate creation of boot.py
@ -255,7 +249,7 @@ MP_NOINLINE STATIC void init_flash_fs(uint reset_mode) {
uint32_t start_tick = HAL_GetTick();
FIL fp;
f_open(&fp, "/flash/boot.py", FA_WRITE | FA_CREATE_ALWAYS);
f_open(&vfs_fat->fatfs, &fp, "/flash/boot.py", FA_WRITE | FA_CREATE_ALWAYS);
UINT n;
f_write(&fp, fresh_boot_py, sizeof(fresh_boot_py) - 1 /* don't count null terminator */, &n);
// TODO check we could write n bytes
@ -485,24 +479,29 @@ soft_reset:
// if an SD card is present then mount it on /sd/
if (sdcard_is_present()) {
// create vfs object
fs_user_mount_t *vfs = m_new_obj_maybe(fs_user_mount_t);
if (vfs == NULL) {
fs_user_mount_t *vfs_fat = m_new_obj_maybe(fs_user_mount_t);
mp_vfs_mount_t *vfs = m_new_obj_maybe(mp_vfs_mount_t);
if (vfs == NULL || vfs_fat == NULL) {
goto no_mem_for_sd;
}
vfs->str = "/sd";
vfs->len = 3;
vfs->flags = FSUSER_FREE_OBJ;
sdcard_init_vfs(vfs);
vfs_fat->str = NULL;
vfs_fat->len = 0;
vfs_fat->flags = FSUSER_FREE_OBJ;
sdcard_init_vfs(vfs_fat);
// put the sd device in slot 1 (it will be unused at this point)
MP_STATE_PORT(fs_user_mount)[1] = vfs;
FRESULT res = f_mount(&vfs->fatfs, vfs->str, 1);
FRESULT res = f_mount(&vfs_fat->fatfs);
if (res != FR_OK) {
printf("PYB: can't mount SD card\n");
MP_STATE_PORT(fs_user_mount)[1] = NULL;
m_del_obj(fs_user_mount_t, vfs);
m_del_obj(fs_user_mount_t, vfs_fat);
m_del_obj(mp_vfs_mount_t, vfs);
} else {
// mount the sd device after the internal flash
vfs->str = "/sd";
vfs->len = 3;
vfs->obj = MP_OBJ_FROM_PTR(vfs_fat);
vfs->next = NULL;
MP_STATE_VM(vfs_mount_table)->next = vfs;
// TODO these should go before the /flash entries in the path
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_sd));
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_sd_slash_lib));
@ -520,7 +519,7 @@ soft_reset:
#endif
{
// use SD card as current directory
f_chdrive("/sd");
MP_STATE_PORT(vfs_cur) = vfs;
}
}
no_mem_for_sd:;
@ -534,8 +533,8 @@ soft_reset:
// TODO perhaps have pyb.reboot([bootpy]) function to soft-reboot and execute custom boot.py
if (reset_mode == 1 || reset_mode == 3) {
const char *boot_py = "boot.py";
FRESULT res = f_stat(boot_py, NULL);
if (res == FR_OK) {
mp_import_stat_t stat = mp_import_stat(boot_py);
if (stat == MP_IMPORT_STAT_FILE) {
int ret = pyexec_file(boot_py);
if (ret & PYEXEC_FORCED_EXIT) {
goto soft_reset_exit;
@ -597,8 +596,8 @@ soft_reset:
} else {
main_py = mp_obj_str_get_str(MP_STATE_PORT(pyb_config_main));
}
FRESULT res = f_stat(main_py, NULL);
if (res == FR_OK) {
mp_import_stat_t stat = mp_import_stat(main_py);
if (stat == MP_IMPORT_STAT_FILE) {
int ret = pyexec_file(main_py);
if (ret & PYEXEC_FORCED_EXIT) {
goto soft_reset_exit;

20
stmhal/modmachine.c
View File

@ -25,6 +25,7 @@
*/
#include <stdio.h>
#include <string.h>
#include "modmachine.h"
#include "py/gc.h"
@ -34,8 +35,9 @@
#include "extmod/machine_pulse.h"
#include "extmod/machine_i2c.h"
#include "lib/utils/pyexec.h"
#include "lib/fatfs/ff.h"
#include "lib/fatfs/diskio.h"
#include "lib/oofatfs/ff.h"
#include "extmod/vfs.h"
#include "extmod/fsusermount.h"
#include "gccollect.h"
#include "irq.h"
#include "rng.h"
@ -144,10 +146,16 @@ STATIC mp_obj_t machine_info(mp_uint_t n_args, const mp_obj_t *args) {
// free space on flash
{
DWORD nclst;
FATFS *fatfs;
f_getfree("/flash", &nclst, &fatfs);
printf("LFS free: %u bytes\n", (uint)(nclst * fatfs->csize * 512));
for (mp_vfs_mount_t *vfs = MP_STATE_VM(vfs_mount_table); vfs != NULL; vfs = vfs->next) {
if (strncmp("/flash", vfs->str, vfs->len) == 0) {
// assumes that it's a FatFs filesystem
fs_user_mount_t *vfs_fat = MP_OBJ_TO_PTR(vfs->obj);
DWORD nclst;
f_getfree(&vfs_fat->fatfs, &nclst);
printf("LFS free: %u bytes\n", (uint)(nclst * vfs_fat->fatfs.csize * 512));
break;
}
}
}
if (n_args == 1) {

8
stmhal/modpyb.c
View File

@ -35,8 +35,8 @@
#include "py/gc.h"
#include "py/builtin.h"
#include "lib/utils/pyexec.h"
#include "lib/fatfs/ff.h"
#include "lib/fatfs/diskio.h"
#include "lib/oofatfs/ff.h"
#include "lib/oofatfs/diskio.h"
#include "gccollect.h"
#include "irq.h"
#include "systick.h"
@ -61,7 +61,7 @@
#include "usb.h"
#include "portmodules.h"
#include "modmachine.h"
#include "extmod/fsusermount.h"
#include "extmod/vfs.h"
#include "extmod/utime_mphal.h"
/// \function millis()
@ -166,7 +166,7 @@ STATIC const mp_map_elem_t pyb_module_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_delay), (mp_obj_t)&mp_utime_sleep_ms_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_udelay), (mp_obj_t)&mp_utime_sleep_us_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_sync), (mp_obj_t)&mod_os_sync_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_mount), (mp_obj_t)&fsuser_mount_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_mount), (mp_obj_t)&mp_vfs_mount_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_Timer), (mp_obj_t)&pyb_timer_type },

294
stmhal/moduos.c
View File

@ -31,15 +31,14 @@
#include "py/runtime.h"
#include "py/objtuple.h"
#include "py/objstr.h"
#include "lib/oofatfs/ff.h"
#include "lib/oofatfs/diskio.h"
#include "extmod/vfs.h"
#include "extmod/vfs_fat.h"
#include "genhdr/mpversion.h"
#include "lib/fatfs/ff.h"
#include "lib/fatfs/diskio.h"
#include "timeutils.h"
#include "rng.h"
#include "uart.h"
#include "extmod/vfs_fat.h"
#include "sdcard.h"
#include "extmod/fsusermount.h"
#include "portmodules.h"
/// \module os - basic "operating system" services
@ -80,263 +79,13 @@ STATIC mp_obj_t os_uname(void) {
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(os_uname_obj, os_uname);
/// \function chdir(path)
/// Change current directory.
STATIC mp_obj_t os_chdir(mp_obj_t path_in) {
const char *path;
path = mp_obj_str_get_str(path_in);
FRESULT res = f_chdrive(path);
if (res == FR_OK) {
res = f_chdir(path);
}
if (res != FR_OK) {
// TODO should be mp_type_FileNotFoundError
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "No such file or directory: '%s'", path));
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_chdir_obj, os_chdir);
/// \function getcwd()
/// Get the current directory.
STATIC mp_obj_t os_getcwd(void) {
char buf[MICROPY_ALLOC_PATH_MAX + 1];
FRESULT res = f_getcwd(buf, sizeof buf);
if (res != FR_OK) {
mp_raise_OSError(fresult_to_errno_table[res]);
}
return mp_obj_new_str(buf, strlen(buf), false);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(os_getcwd_obj, os_getcwd);
/// \function listdir([dir])
/// With no argument, list the current directory. Otherwise list the given directory.
STATIC mp_obj_t os_listdir(mp_uint_t n_args, const mp_obj_t *args) {
bool is_str_type = true;
const char *path;
if (n_args == 1) {
if (mp_obj_get_type(args[0]) == &mp_type_bytes) {
is_str_type = false;
}
path = mp_obj_str_get_str(args[0]);
} else {
path = "";
}
// "hack" to list root directory
if (path[0] == '/' && path[1] == '\0') {
mp_obj_t dir_list = mp_obj_new_list(0, NULL);
for (size_t i = 0; i < MP_ARRAY_SIZE(MP_STATE_PORT(fs_user_mount)); ++i) {
fs_user_mount_t *vfs = MP_STATE_PORT(fs_user_mount)[i];
if (vfs != NULL) {
mp_obj_list_append(dir_list, mp_obj_new_str(vfs->str + 1, vfs->len - 1, false));
}
}
return dir_list;
}
return fat_vfs_listdir(path, is_str_type);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(os_listdir_obj, 0, 1, os_listdir);
/// \function mkdir(path)
/// Create a new directory.
STATIC mp_obj_t os_mkdir(mp_obj_t path_o) {
const char *path = mp_obj_str_get_str(path_o);
FRESULT res = f_mkdir(path);
switch (res) {
case FR_OK:
return mp_const_none;
case FR_EXIST:
// TODO should be FileExistsError
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "File exists: '%s'", path));
default:
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "Error creating directory '%s'", path));
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_mkdir_obj, os_mkdir);
/// \function remove(path)
/// Remove a file.
STATIC mp_obj_t os_remove(mp_obj_t path_o) {
const char *path = mp_obj_str_get_str(path_o);
// TODO check that path is actually a file before trying to unlink it
FRESULT res = f_unlink(path);
switch (res) {
case FR_OK:
return mp_const_none;
default:
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "Error removing file '%s'", path));
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_remove_obj, os_remove);
/// \function rename(old_path, new_path)
/// Rename a file
STATIC mp_obj_t os_rename(mp_obj_t path_in, mp_obj_t path_out) {
const char *old_path = mp_obj_str_get_str(path_in);
const char *new_path = mp_obj_str_get_str(path_out);
FRESULT res = f_rename(old_path, new_path);
if (res == FR_EXIST) {
// if new_path exists then try removing it
res = f_unlink(new_path);
if (res == FR_OK) {
// try to rename again
res = f_rename(old_path, new_path);
}
}
switch (res) {
case FR_OK:
return mp_const_none;
default:
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "Error renaming file '%s' to '%s'", old_path, new_path));
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(os_rename_obj, os_rename);
/// \function rmdir(path)
/// Remove a directory.
STATIC mp_obj_t os_rmdir(mp_obj_t path_o) {
const char *path = mp_obj_str_get_str(path_o);
// TODO check that path is actually a directory before trying to unlink it
FRESULT res = f_unlink(path);
switch (res) {
case FR_OK:
return mp_const_none;
default:
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "Error removing directory '%s'", path));
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_rmdir_obj, os_rmdir);
// Checks for path equality, ignoring trailing slashes:
// path_equal(/, /) -> true
// path_equal(/flash//, /flash) -> true
// second argument must be in canonical form (meaning no trailing slash, unless it's just /)
STATIC bool path_equal(const char *path, const char *path_canonical) {
for (; *path_canonical != '\0' && *path == *path_canonical; ++path, ++path_canonical) {
}
if (*path_canonical != '\0') {
return false;
}
for (; *path == '/'; ++path) {
}
return *path == '\0';
}
/// \function stat(path)
/// Get the status of a file or directory.
STATIC mp_obj_t os_stat(mp_obj_t path_in) {
const char *path = mp_obj_str_get_str(path_in);
FILINFO fno;
#if _USE_LFN
fno.lfname = NULL;
fno.lfsize = 0;
#endif
FRESULT res;
if (path_equal(path, "/")) {
// stat root directory
fno.fsize = 0;
fno.fdate = 0;
fno.ftime = 0;
fno.fattrib = AM_DIR;
} else {
res = FR_NO_PATH;
for (size_t i = 0; i < MP_ARRAY_SIZE(MP_STATE_PORT(fs_user_mount)); ++i) {
fs_user_mount_t *vfs = MP_STATE_PORT(fs_user_mount)[i];
if (vfs != NULL && path_equal(path, vfs->str)) {
// stat mounted device directory
fno.fsize = 0;
fno.fdate = 0;
fno.ftime = 0;
fno.fattrib = AM_DIR;
res = FR_OK;
}
}
if (res == FR_NO_PATH) {
// stat normal file
res = f_stat(path, &fno);
}
if (res != FR_OK) {
mp_raise_OSError(fresult_to_errno_table[res]);
}
}
mp_obj_tuple_t *t = mp_obj_new_tuple(10, NULL);
mp_int_t mode = 0;
if (fno.fattrib & AM_DIR) {
mode |= 0x4000; // stat.S_IFDIR
} else {
mode |= 0x8000; // stat.S_IFREG
}
mp_int_t seconds = timeutils_seconds_since_2000(
1980 + ((fno.fdate >> 9) & 0x7f),
(fno.fdate >> 5) & 0x0f,
fno.fdate & 0x1f,
(fno.ftime >> 11) & 0x1f,
(fno.ftime >> 5) & 0x3f,
2 * (fno.ftime & 0x1f)
);
t->items[0] = MP_OBJ_NEW_SMALL_INT(mode); // 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_SMALL_INT(fno.fsize); // st_size
t->items[7] = MP_OBJ_NEW_SMALL_INT(seconds); // st_atime
t->items[8] = MP_OBJ_NEW_SMALL_INT(seconds); // st_mtime
t->items[9] = MP_OBJ_NEW_SMALL_INT(seconds); // st_ctime
return t;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_stat_obj, os_stat);
STATIC mp_obj_t os_statvfs(mp_obj_t path_in) {
const char *path = mp_obj_str_get_str(path_in);
DWORD nclst;
FATFS *fatfs;
FRESULT res = f_getfree(path, &nclst, &fatfs);
if (res != FR_OK) {
goto error;
}
mp_obj_tuple_t *t = mp_obj_new_tuple(10, NULL);
t->items[0] = MP_OBJ_NEW_SMALL_INT(fatfs->csize * 512); // f_bsize - block size
t->items[1] = t->items[0]; // f_frsize - fragment size
t->items[2] = MP_OBJ_NEW_SMALL_INT((fatfs->n_fatent - 2) * fatfs->csize); // f_blocks - total number of blocks
t->items[3] = MP_OBJ_NEW_SMALL_INT(nclst); // f_bfree - number of free blocks
t->items[4] = t->items[3]; // f_bavail - free blocks avail to unpriviledged users
t->items[5] = MP_OBJ_NEW_SMALL_INT(0); // f_files - # inodes
t->items[6] = MP_OBJ_NEW_SMALL_INT(0); // f_ffree - # free inodes
t->items[7] = MP_OBJ_NEW_SMALL_INT(0); // f_favail - # free inodes avail to unpriviledges users
t->items[8] = MP_OBJ_NEW_SMALL_INT(0); // f_flags
t->items[9] = MP_OBJ_NEW_SMALL_INT(_MAX_LFN); // f_namemax
return t;
error:
mp_raise_OSError(fresult_to_errno_table[res]);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_statvfs_obj, os_statvfs);
/// \function sync()
/// Sync all filesystems.
STATIC mp_obj_t os_sync(void) {
disk_ioctl(0, CTRL_SYNC, NULL);
disk_ioctl(1, CTRL_SYNC, NULL);
disk_ioctl(2, CTRL_SYNC, NULL);
for (mp_vfs_mount_t *vfs = MP_STATE_VM(vfs_mount_table); vfs != NULL; vfs = vfs->next) {
// this assumes that vfs->obj is fs_user_mount_t with block device functions
disk_ioctl(MP_OBJ_TO_PTR(vfs->obj), CTRL_SYNC, NULL);
}
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_0(mod_os_sync_obj, os_sync);
@ -384,16 +133,17 @@ STATIC const mp_map_elem_t os_module_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_uname), (mp_obj_t)&os_uname_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_chdir), (mp_obj_t)&os_chdir_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_getcwd), (mp_obj_t)&os_getcwd_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_listdir), (mp_obj_t)&os_listdir_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_mkdir), (mp_obj_t)&os_mkdir_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_remove), (mp_obj_t)&os_remove_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_rename),(mp_obj_t)&os_rename_obj},
{ MP_OBJ_NEW_QSTR(MP_QSTR_rmdir), (mp_obj_t)&os_rmdir_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_stat), (mp_obj_t)&os_stat_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_statvfs), (mp_obj_t)&os_statvfs_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_unlink), (mp_obj_t)&os_remove_obj }, // unlink aliases to remove
{ MP_OBJ_NEW_QSTR(MP_QSTR_chdir), (mp_obj_t)&mp_vfs_chdir_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_chdir), (mp_obj_t)&mp_vfs_chdir_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_getcwd), (mp_obj_t)&mp_vfs_getcwd_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_listdir), (mp_obj_t)&mp_vfs_listdir_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_mkdir), (mp_obj_t)&mp_vfs_mkdir_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_remove), (mp_obj_t)&mp_vfs_remove_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_rename),(mp_obj_t)&mp_vfs_rename_obj},
{ MP_OBJ_NEW_QSTR(MP_QSTR_rmdir), (mp_obj_t)&mp_vfs_rmdir_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_stat), (mp_obj_t)&mp_vfs_stat_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_statvfs), (mp_obj_t)&mp_vfs_statvfs_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_unlink), (mp_obj_t)&mp_vfs_remove_obj }, // unlink aliases to remove
{ MP_OBJ_NEW_QSTR(MP_QSTR_sync), (mp_obj_t)&mod_os_sync_obj },
@ -406,9 +156,9 @@ STATIC const mp_map_elem_t os_module_globals_table[] = {
// these are MicroPython extensions
{ MP_OBJ_NEW_QSTR(MP_QSTR_dupterm), (mp_obj_t)&mod_os_dupterm_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_mount), (mp_obj_t)&fsuser_mount_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_umount), (mp_obj_t)&fsuser_umount_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_mkfs), (mp_obj_t)&fsuser_mkfs_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_mount), (mp_obj_t)&mp_vfs_mount_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_umount), (mp_obj_t)&mp_vfs_umount_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_VfsFat), (mp_obj_t)&mp_fat_vfs_type },
};
STATIC MP_DEFINE_CONST_DICT(os_module_globals, os_module_globals_table);

16
stmhal/mpconfigport.h
View File

@ -52,7 +52,7 @@
#define MICROPY_OPT_MPZ_BITWISE (1)
// Python internal features
#define MICROPY_READER_FATFS (1)
#define MICROPY_READER_VFS (1)
#define MICROPY_ENABLE_GC (1)
#define MICROPY_ENABLE_FINALISER (1)
#define MICROPY_STACK_CHECK (1)
@ -69,6 +69,8 @@
#define MICROPY_MODULE_WEAK_LINKS (1)
#define MICROPY_CAN_OVERRIDE_BUILTINS (1)
#define MICROPY_USE_INTERNAL_ERRNO (1)
#define MICROPY_VFS (1)
#define MICROPY_VFS_FAT (1)
// control over Python builtins
#define MICROPY_PY_FUNCTION_ATTRS (1)
@ -133,13 +135,21 @@
#endif
// fatfs configuration used in ffconf.h
#define MICROPY_FATFS_OO (1)
#define MICROPY_FATFS_ENABLE_LFN (1)
#define MICROPY_FATFS_LFN_CODE_PAGE (437) /* 1=SFN/ANSI 437=LFN/U.S.(OEM) */
#define MICROPY_FATFS_USE_LABEL (1)
#define MICROPY_FATFS_RPATH (2)
#define MICROPY_FATFS_VOLUMES (4)
#define MICROPY_FATFS_MULTI_PARTITION (1)
#define MICROPY_FSUSERMOUNT (1)
// TODO these should be generic, not bound to fatfs
#define mp_type_fileio fatfs_type_fileio
#define mp_type_textio fatfs_type_textio
// use vfs's functions for import stat and builtin open
#define mp_import_stat mp_vfs_import_stat
#define mp_builtin_open mp_vfs_open
#define mp_builtin_open_obj mp_vfs_open_obj
// extra built in names to add to the global namespace
#define MICROPY_PORT_BUILTINS \

5
stmhal/sdcard.c
View File

@ -28,7 +28,8 @@
#include "py/nlr.h"
#include "py/runtime.h"
#include "lib/fatfs/ff.h"
#include "lib/oofatfs/ff.h"
#include "extmod/vfs_fat.h"
#include "extmod/fsusermount.h"
#include "mphalport.h"
@ -444,7 +445,9 @@ const mp_obj_type_t pyb_sdcard_type = {
};
void sdcard_init_vfs(fs_user_mount_t *vfs) {
vfs->base.type = &mp_fat_vfs_type;
vfs->flags |= FSUSER_NATIVE | FSUSER_HAVE_IOCTL;
vfs->fatfs.drv = vfs;
vfs->readblocks[0] = (mp_obj_t)&pyb_sdcard_readblocks_obj;
vfs->readblocks[1] = (mp_obj_t)&pyb_sdcard_obj;
vfs->readblocks[2] = (mp_obj_t)sdcard_read_blocks; // native version

5
stmhal/storage.c
View File

@ -29,7 +29,8 @@
#include "py/obj.h"
#include "py/runtime.h"
#include "lib/fatfs/ff.h"
#include "lib/oofatfs/ff.h"
#include "extmod/vfs_fat.h"
#include "extmod/fsusermount.h"
#include "systick.h"
@ -504,7 +505,9 @@ const mp_obj_type_t pyb_flash_type = {
};
void pyb_flash_init_vfs(fs_user_mount_t *vfs) {
vfs->base.type = &mp_fat_vfs_type;
vfs->flags |= FSUSER_NATIVE | FSUSER_HAVE_IOCTL;
vfs->fatfs.drv = vfs;
vfs->readblocks[0] = (mp_obj_t)&pyb_flash_readblocks_obj;
vfs->readblocks[1] = (mp_obj_t)&pyb_flash_obj;
vfs->readblocks[2] = (mp_obj_t)storage_read_blocks; // native version