micropython/ports/stm32/factoryreset.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013-2019 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 "py/mperrno.h"
#include "extmod/vfs_fat.h"
#include "systick.h"
#include "led.h"
#include "storage.h"
#include "factoryreset.h"
#if MICROPY_HW_ENABLE_STORAGE
#if MICROPY_VFS_FAT
static const char fresh_boot_py[] =
"# boot.py -- run on boot to configure USB and filesystem\r\n"
"# Put app code in main.py\r\n"
"\r\n"
"import machine\r\n"
"import pyb\r\n"
"pyb.country('US') # ISO 3166-1 Alpha-2 code, eg US, GB, DE, AU\r\n"
"#pyb.main('main.py') # main script to run after this one\r\n"
#if MICROPY_HW_ENABLE_USB
"#pyb.usb_mode('VCP+MSC') # act as a serial and a storage device\r\n"
"#pyb.usb_mode('VCP+HID') # act as a serial device and a mouse\r\n"
#endif
;
static const char fresh_main_py[] =
"# main.py -- put your code here!\r\n"
;
#if MICROPY_HW_ENABLE_USB
static const char fresh_pybcdc_inf[] =
#include "genhdr/pybcdc_inf.h"
;
static const char fresh_readme_txt[] =
"This is a MicroPython board\r\n"
"\r\n"
"You can get started right away by writing your Python code in 'main.py'.\r\n"
"\r\n"
"For a serial prompt:\r\n"
" - Windows: you need to go to 'Device manager', right click on the unknown device,\r\n"
" then update the driver software, using the 'pybcdc.inf' file found on this drive.\r\n"
" Then use a terminal program like Hyperterminal or putty.\r\n"
" - Mac OS X: use the command: screen /dev/tty.usbmodem*\r\n"
" - Linux: use the command: screen /dev/ttyACM0\r\n"
"\r\n"
"Please visit http://micropython.org/help/ for further help.\r\n"
;
#endif
typedef struct _factory_file_t {
const char *name;
size_t len;
const char *data;
} factory_file_t;
static const factory_file_t factory_files[] = {
{"boot.py", sizeof(fresh_boot_py) - 1, fresh_boot_py},
{"main.py", sizeof(fresh_main_py) - 1, fresh_main_py},
#if MICROPY_HW_ENABLE_USB
{"pybcdc.inf", sizeof(fresh_pybcdc_inf) - 1, fresh_pybcdc_inf},
{"README.txt", sizeof(fresh_readme_txt) - 1, fresh_readme_txt},
#endif
};
MP_WEAK void factory_reset_make_files(FATFS *fatfs) {
for (int i = 0; i < MP_ARRAY_SIZE(factory_files); ++i) {
const factory_file_t *f = &factory_files[i];
FIL fp;
FRESULT res = f_open(fatfs, &fp, f->name, FA_WRITE | FA_CREATE_ALWAYS);
if (res == FR_OK) {
UINT n;
f_write(&fp, f->data, f->len, &n);
f_close(&fp);
}
}
}
MP_WEAK int factory_reset_create_filesystem(void) {
// LED on to indicate creation of local filesystem
led_state(PYB_LED_GREEN, 1);
uint32_t start_tick = HAL_GetTick();
fs_user_mount_t vfs;
pyb_flash_init_vfs(&vfs);
uint8_t working_buf[FF_MAX_SS];
FRESULT res = f_mkfs(&vfs.fatfs, FM_FAT, 0, working_buf, sizeof(working_buf));
if (res != FR_OK) {
mp_printf(&mp_plat_print, "MPY: can't create flash filesystem\n");
return -MP_ENODEV;
}
// Set label
f_setlabel(&vfs.fatfs, MICROPY_HW_FLASH_FS_LABEL);
// Populate the filesystem with factory files
factory_reset_make_files(&vfs.fatfs);
// Keep LED on for at least 200ms
systick_wait_at_least(start_tick, 200);
led_state(PYB_LED_GREEN, 0);
return 0; // success
}
#else
// If FAT is not enabled then it's up to the board to create a fresh filesystem.
MP_WEAK int factory_reset_create_filesystem(void) {
return 0; // success
}
#endif
#endif // MICROPY_HW_ENABLE_STORAGE