circuitpython/ports/atmel-samd/common-hal/storage/__init__.c

59 lines
2.2 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
*
* 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 <string.h>
#include "flash_api.h"
#include "py/mperrno.h"
#include "py/runtime.h"
#include "shared-bindings/microcontroller/__init__.h"
#include "shared-bindings/storage/__init__.h"
#include "supervisor/filesystem.h"
#include "supervisor/shared/translate.h"
#include "usb.h"
extern volatile bool mp_msc_enabled;
void common_hal_storage_remount(const char* mount_path, bool readonly) {
if (strcmp(mount_path, "/") != 0) {
mp_raise_OSError(MP_EINVAL);
}
// TODO(dhalbert): is this is a good enough check? It checks for
// CDC enabled. There is no "MSC enabled" check.
if (usb_connected()) {
mp_raise_RuntimeError(translate("Cannot remount '/' when USB is active."));
}
flash_set_usb_writable(readonly);
}
void common_hal_storage_erase_filesystem(void) {
filesystem_init(false, true); // Force a re-format.
common_hal_mcu_reset();
// We won't actually get here, since we're resetting.
}