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/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** LevelX Component */
/** */
/** NOR Flash */
/** */
/**************************************************************************/
/**************************************************************************/
#define LX_SOURCE_CODE
/* Disable ThreadX error checking. */
#ifndef LX_DISABLE_ERROR_CHECKING
#define LX_DISABLE_ERROR_CHECKING
#endif
/* Include necessary system files. */
#include "lx_api.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _lx_nor_flash_partial_defragment PORTABLE C */
/* 6.1.7 */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function defragments the NOR flash up to the specified */
/* number of blocks. . */
/* */
/* INPUT */
/* */
/* nor_flash NOR flash instance */
/* max_blocks Maximum number of blocks to */
/* defragment */
/* */
/* OUTPUT */
/* */
/* return status */
/* */
/* CALLS */
/* */
/* _lx_nor_flash_block_reclaim Reclaim a NOR flash block */
/* tx_mutex_get Get thread protection */
/* tx_mutex_put Release thread protection */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* Internal LevelX */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 William E. Lamie Initial Version 6.0 */
/* 09-30-2020 William E. Lamie Modified comment(s), */
/* resulting in version 6.1 */
/* 06-02-2021 Bhupendra Naphade Modified comment(s), */
/* resulting in version 6.1.7 */
/* */
/**************************************************************************/
UINT _lx_nor_flash_partial_defragment(LX_NOR_FLASH *nor_flash, UINT max_blocks)
{
ULONG i;
#ifdef LX_THREAD_SAFE_ENABLE
/* Obtain the thread safe mutex. */
tx_mutex_get(&nor_flash -> lx_nor_flash_mutex, TX_WAIT_FOREVER);
#endif
/* Determine if the maximum number of blocks exceeds the total blocks in this flash instance. */
if (max_blocks >= nor_flash -> lx_nor_flash_total_blocks)
{
/* Adjust the maximum to the total number of blocks. */
max_blocks = nor_flash -> lx_nor_flash_total_blocks;
}
/* Loop for max number of blocks, while there are obsolete count. */
for (i = 0; i < max_blocks; i++)
{
/* Determine if there is any more defragment work. */
if (nor_flash -> lx_nor_flash_obsolete_physical_sectors == 0)
break;
/* Call the block reclaim function to defragment. */
_lx_nor_flash_block_reclaim(nor_flash);
}
#ifdef LX_THREAD_SAFE_ENABLE
/* Release the thread safe mutex. */
tx_mutex_put(&nor_flash -> lx_nor_flash_mutex);
#endif
/* Return successful completion. */
return(LX_SUCCESS);
}