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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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* Copyright (c) 2026-present Eclipse ThreadX contributors |
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* |
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* This program and the accompanying materials are made available under the |
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* terms of the MIT License which is available at |
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* https://opensource.org/licenses/MIT. |
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* |
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* SPDX-License-Identifier: MIT |
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**************************************************************************/ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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/** */ |
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/** FileX Component */ |
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/** */ |
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/** Media */ |
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/** */ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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#define FX_SOURCE_CODE |
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/* Include necessary system files. */ |
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#include "fx_api.h" |
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#include "fx_media.h" |
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FX_CALLER_CHECKING_EXTERNS |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _fxe_media_read PORTABLE C */ |
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/* 6.1 */ |
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/* AUTHOR */ |
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/* */ |
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/* William E. Lamie, Microsoft Corporation */ |
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/* */ |
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/* DESCRIPTION */ |
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/* */ |
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/* This function checks for errors in the media read call. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* media_ptr Media control block pointer */ |
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/* logical_sector Logical sector to read */ |
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/* buffer_ptr Pointer to caller's buffer */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* return status */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* _fx_media_read Actual media read service */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* Application Code */ |
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/* */ |
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/**************************************************************************/ |
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UINT _fxe_media_read(FX_MEDIA *media_ptr, ULONG logical_sector, VOID *buffer_ptr) |
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{ |
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UINT status; |
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/* Check for a null media pointer or buffer pointer. */ |
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✓✓✓✓
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if ((media_ptr == FX_NULL) || (buffer_ptr == FX_NULL)) |
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{ |
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return(FX_PTR_ERROR); |
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} |
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/* Check for a valid caller. */ |
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✓✓✓✓
✓✓ |
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FX_CALLER_CHECKING_CODE |
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/* Call actual media read service. */ |
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status = _fx_media_read(media_ptr, logical_sector, buffer_ptr); |
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/* Return status to the caller. */ |
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return(status); |
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} |
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