mirror of
https://github.com/eclipse-threadx/levelx.git
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124 lines
6.0 KiB
C
124 lines
6.0 KiB
C
/**************************************************************************/
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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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/** LevelX Component */
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/** */
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/** NOR Flash */
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/** */
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/**************************************************************************/
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/**************************************************************************/
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#define LX_SOURCE_CODE
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/* Disable ThreadX error checking. */
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#ifndef TX_DISABLE_ERROR_CHECKING
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#define TX_DISABLE_ERROR_CHECKING
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#endif
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/* Include necessary system files. */
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#include "lx_api.h"
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _lx_nor_flash_partial_defragment PORTABLE C */
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/* 6.0 */
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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 defragments the NOR flash up to the specified */
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/* number of blocks. . */
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/* */
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/* INPUT */
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/* */
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/* nor_flash NOR flash instance */
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/* max_blocks Maximum number of blocks to */
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/* defragment */
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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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/* _lx_nor_flash_block_reclaim Reclaim a NOR flash block */
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/* tx_mutex_get Get thread protection */
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/* tx_mutex_put Release thread protection */
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/* */
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/* CALLED BY */
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/* */
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/* Application Code */
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/* Internal LevelX */
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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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/* */
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/**************************************************************************/
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UINT _lx_nor_flash_partial_defragment(LX_NOR_FLASH *nor_flash, UINT max_blocks)
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{
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ULONG i;
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#ifdef LX_THREAD_SAFE_ENABLE
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/* Obtain the thread safe mutex. */
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tx_mutex_get(&nor_flash -> lx_nor_flash_mutex, TX_WAIT_FOREVER);
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#endif
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/* Determine if the maximum number of blocks exceeds the total blocks in this flash instance. */
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if (max_blocks >= nor_flash -> lx_nor_flash_total_blocks)
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{
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/* Adjust the maximum to the total number of blocks. */
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max_blocks = nor_flash -> lx_nor_flash_total_blocks;
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}
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/* Loop for max number of blocks, while there are obsolete count. */
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for (i = 0; i < max_blocks; i++)
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{
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/* Determine if there is any more defragment work. */
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if (nor_flash -> lx_nor_flash_obsolete_physical_sectors == 0)
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break;
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/* Call the block reclaim function to defragment. */
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_lx_nor_flash_block_reclaim(nor_flash);
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}
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#ifdef LX_THREAD_SAFE_ENABLE
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/* Release the thread safe mutex. */
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tx_mutex_put(&nor_flash -> lx_nor_flash_mutex);
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#endif
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/* Return successful completion. */
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return(LX_SUCCESS);
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}
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