139 lines
6.5 KiB
C
Executable File
139 lines
6.5 KiB
C
Executable File
/**************************************************************************/
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/* */
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/* Copyright (c) Microsoft Corporation. All rights reserved. */
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/* */
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/* This software is licensed under the Microsoft Software License */
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/* Terms for Microsoft Azure RTOS. Full text of the license can be */
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/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
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/* and in the root directory of this software. */
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/* */
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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_system.h"
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#include "fx_media.h"
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#include "fx_utility.h"
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _fx_media_write 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 writes the specified raw logical sector to the */
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/* specified media. */
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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_utility_logical_sector_write Write logical sector utility */
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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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/* RELEASE HISTORY */
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/* */
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/* DATE NAME DESCRIPTION */
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/* */
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/* 05-19-2020 William E. Lamie Initial Version 6.0 */
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/* 09-30-2020 William E. Lamie Modified comment(s), */
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/* resulting in version 6.1 */
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/* */
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/**************************************************************************/
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UINT _fx_media_write(FX_MEDIA *media_ptr, ULONG logical_sector, VOID *buffer_ptr)
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{
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UINT status;
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#ifdef TX_ENABLE_EVENT_TRACE
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TX_TRACE_BUFFER_ENTRY *trace_event;
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ULONG trace_timestamp;
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#endif
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#ifndef FX_MEDIA_STATISTICS_DISABLE
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/* Increment the number of times this service has been called. */
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media_ptr -> fx_media_writes++;
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#endif
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/* Check the media to make sure it is open. */
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if (media_ptr -> fx_media_id != FX_MEDIA_ID)
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{
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/* Return the media not opened error. */
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return(FX_MEDIA_NOT_OPEN);
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}
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/* If trace is enabled, insert this event into the trace buffer. */
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FX_TRACE_IN_LINE_INSERT(FX_TRACE_MEDIA_WRITE, media_ptr, logical_sector, buffer_ptr, 0, FX_TRACE_MEDIA_EVENTS, &trace_event, &trace_timestamp)
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/* Protect against other threads accessing the media. */
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FX_PROTECT
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/* Check for write protect at the media level (set by driver). */
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if (media_ptr -> fx_media_driver_write_protect)
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{
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/* Release media protection. */
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FX_UNPROTECT
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/* Return write protect error. */
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return(FX_WRITE_PROTECT);
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}
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/* Write the logical sector. */
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status = _fx_utility_logical_sector_write(media_ptr, (ULONG64) logical_sector, buffer_ptr, ((ULONG) 1), FX_DATA_SECTOR);
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#ifdef TX_ENABLE_EVENT_TRACE
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/* Check for successful status. */
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if (status == FX_SUCCESS)
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{
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/* Update the trace event with the bytes written. */
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FX_TRACE_EVENT_UPDATE(trace_event, trace_timestamp, FX_TRACE_MEDIA_WRITE, 0, 0, 0, media_ptr -> fx_media_bytes_per_sector)
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}
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#endif
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/* Release media protection. */
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FX_UNPROTECT
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/* Return status to the caller. */
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return(status);
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}
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