fd2ff867a0
The SCSI driver calls GetCapacity to get the block size and number of blocks of the underlying block-device/LUN. It caches these values and uses them later on to verify that reads/writes are within the bounds of the LUN. But, prior to this commit, there was only one set of cached values for all LUNs, so the bounds checking for a LUN could use incorrect values, values from one of the other LUNs that most recently updated the cached values. This would lead to failed SCSI requests. This commit fixes this issue by having separate cached values for each LUN. Signed-off-by: Damien George <damien@micropython.org>
34 lines
1.5 KiB
C
34 lines
1.5 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) 2013, 2014 Damien P. George
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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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#ifndef MICROPY_INCLUDED_STM32_USBD_MSC_INTERFACE_H
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#define MICROPY_INCLUDED_STM32_USBD_MSC_INTERFACE_H
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extern const USBD_StorageTypeDef usbd_msc_fops;
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void usbd_msc_init_lu(size_t lu_n, const void *lu_data);
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#endif // MICROPY_INCLUDED_STM32_USBD_MSC_INTERFACE_H
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