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94f0312566
The BIS storage interface is now initialized by utilsInitializeResources() via bisStorageInitialize(). It takes care of mounting all eMMC FAT partitions in read-only mode, making it possible for the rest of the code to interact with them at any time without having to manually mount them beforehand. Other changes include: * bis_storage: add bisStorageExit(). * bis_storage: add bisStorageGetGptPartitionNameByBisPartitionId(), bisStorageGetSystemInitializerPartitionNameByBisPartitionId() and bisStorageGetMountNameByBisPartitionId() helpers. * bis_storage: change bisStorageMountPartition(), bisStorageUnmountPartition() and bisStorageUnmountAllPartitions() to static functions. * bis_storage: mount FAT partitions with FatFs by using drive numbers instead of arbitrary strings. * cert: update code to reflect BIS storage interface changes. * defines: add BIS_FAT_PARTITION_COUNT macro. * fatfs/ffconf: use BIS_FAT_PARTITION_COUNT macro as the value for the FF_VOLUMES macro. * fatfs/ffconf: disable arbitrary string support for volume IDs. * nxdt_devoptab: increase concurrent mounted device count to 8. * nxdt_utils: add missing underscores to anonymous variables in SCOPED_LOCK and SCOPED_TRY_LOCK macros. * nxdt_utils: take care of BIS storage interface (de)initialization. * poc: update code to reflect BIS storage interface changes. * tik: update code to reflect BIS storage interface changes.
66 lines
3.3 KiB
C
66 lines
3.3 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 the eMMC partitions with IDs `CalibrationFile` (28) through `System` (31) and makes it possible to perform read-only FS operations with them.
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/// The mount name for each partition can be retrieved via bisStorageGetMountNameByBisPartitionId().
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bool bisStorageInitialize(void);
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/// Unmounts all previously mounted eMMC partitions.
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void bisStorageExit(void);
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/// Returns a pointer to a string that holds the GPT partition name for the provided eMMC BIS partition ID (e.g. FsBisPartitionId_CalibrationFile -> "PRODINFOF").
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/// Only eMMC BIS partition IDs `CalibrationFile` (28) through `System` (31) are supported.
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/// Returns NULL if the eMMC BIS storage interface hasn't been initialized yet, or if an unsupported eMMC BIS partition ID is provided.
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const char *bisStorageGetGptPartitionNameByBisPartitionId(u8 bis_partition_id);
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/// Returns a pointer to a string that holds the SystemInitializer partition name for the provided eMMC BIS partition ID (e.g. FsBisPartitionId_CalibrationFile -> "CalibrationFile").
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/// Only eMMC BIS partition IDs `CalibrationFile` (28) through `System` (31) are supported.
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/// Returns NULL if the eMMC BIS storage interface hasn't been initialized yet, or if an unsupported eMMC BIS partition ID is provided.
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const char *bisStorageGetSystemInitializerPartitionNameByBisPartitionId(u8 bis_partition_id);
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/// Returns a pointer to a string that holds the mount name for the provided eMMC BIS partition ID (e.g. FsBisPartitionId_CalibrationFile -> "bisprodinfof").
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/// This can be used to perform read-only FS operations on a specific partition.
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/// Only eMMC BIS partition IDs `CalibrationFile` (28) through `System` (31) are supported.
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/// Returns NULL if the eMMC BIS storage interface hasn't been initialized yet, or if an unsupported eMMC BIS partition ID is provided.
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const char *bisStorageGetMountNameByBisPartitionId(u8 bis_partition_id);
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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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