62 lines
2.7 KiB
C
62 lines
2.7 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) 2017 Scott Shawcroft for Adafruit Industries
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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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#pragma once
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#include <stdbool.h>
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#include "extmod/vfs_fat.h"
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extern volatile bool filesystem_flush_requested;
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void filesystem_background(void);
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void filesystem_tick(void);
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bool filesystem_init(bool create_allowed, bool force_create);
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void filesystem_flush(void);
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bool filesystem_present(void);
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void filesystem_set_internal_writable_by_usb(bool usb_writable);
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void filesystem_set_internal_concurrent_write_protection(bool concurrent_write_protection);
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void filesystem_set_writable_by_usb(fs_user_mount_t *vfs, bool usb_writable);
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void filesystem_set_concurrent_write_protection(fs_user_mount_t *vfs, bool concurrent_write_protection);
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// This controls whether USB tries to grab the underlying block device lock
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// during enumeration. If another workflow is modifying the filesystem when this
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// happens, then USB will be readonly.
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bool filesystem_is_writable_by_usb(fs_user_mount_t *vfs);
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fs_user_mount_t *filesystem_circuitpy(void);
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fs_user_mount_t *filesystem_for_path(const char *path_in, const char **path_under_mount);
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bool filesystem_native_fatfs(fs_user_mount_t *fs_mount);
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// We have two levels of locking. filesystem_* calls grab a shared blockdev lock to allow
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// CircuitPython's fatfs code to edit the blocks. blockdev_* class grab a lock to mutate blocks
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// directly, excluding any filesystem_* locks.
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bool filesystem_lock(fs_user_mount_t *fs_mount);
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void filesystem_unlock(fs_user_mount_t *fs_mount);
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bool blockdev_lock(fs_user_mount_t *fs_mount);
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void blockdev_unlock(fs_user_mount_t *fs_mount);
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