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https://github.com/DarkMatterCore/nxdumptool.git
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596928a3c6
Takes care of retrieving a FsStorage object for any FAT eMMC BIS partition, mounting it via FatFs and creating a virtual devoptab device that can be used to carry out FS operations. All write operations have been stubbed, disabled or ifdef'd out of the code. Other changes include: * cert: update code to use the new BIS storage interface. * defines: remove BIS_SYSTEM_PARTITION_MOUNT_NAME macro. * devoptab: slightly improve macros. * devoptab: add operation table for FatFs devices. * devoptab: add rodev_fstat(). * devoptab: add devoptabMountFatFsDevice(). * fatfs: update diskio code to use the new BIS storage interface. * fatfs: update configuration. * save: update code to use regular C I/O calls instead of FatFs calls. * tik: update code to use the new BIS storage interface. * utils: remove eMMC BIS System partition (un)mount code.
54 lines
2 KiB
C
54 lines
2 KiB
C
/*
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* bis_storage.h
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*
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* Copyright (c) 2020-2024, DarkMatterCore <pabloacurielz@gmail.com>.
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*
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* This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool).
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*
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* nxdumptool is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* nxdumptool is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#pragma once
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#ifndef __BIS_STORAGE_H__
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#define __BIS_STORAGE_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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/// Mounts an eMMC BIS partition using its ID and provides a pointer to a string that holds its mount name, which can be used to carry out FS operations.
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/// Only eMMC BIS partition IDs `CalibrationFile` (28) through `System` (31) are supported.
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bool bisStorageMountPartition(u8 bis_partition_id, const char **out_mount_name);
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/// Unmounts a previously mounted eMMC BIS partition.
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/// Only eMMC BIS partition IDs `CalibrationFile` (28) through `System` (31) are supported.
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void bisStorageUnmountPartition(u8 bis_partition_id);
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/// Unmounts all previously mounted eMMC BIS partitions.
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void bisStorageUnmountAllPartitions(void);
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/// Returns a pointer to a FsStorage object that matches the provided FatFs drive number, or NULL if it hasn't been mounted.
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/// Only used by FatFs's diskio operations.
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FsStorage *bisStorageGetFsStorageByFatFsDriveNumber(u8 drive_number);
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/// (Un)locks the BIS storage mutex. Can be used to block other threads and prevent them from altering the internal status of this interface.
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/// Use with caution.
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void bisStorageControlMutex(bool lock);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __BIS_STORAGE_H__ */
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