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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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/** LevelX Component */ |
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/** */ |
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/** NAND 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 LX_DISABLE_ERROR_CHECKING |
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#define LX_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_nand_flash_mapped_block_list_add PORTABLE C */ |
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/* 6.2.1 */ |
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/* AUTHOR */ |
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/* */ |
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/* Xiuwen Cai, Microsoft Corporation */ |
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/* */ |
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/* DESCRIPTION */ |
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/* */ |
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/* This function adds a block to mapped block list. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* nand_flash NAND flash instance */ |
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/* block_mapping_index Block mapping index */ |
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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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/* None */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* Internal LevelX */ |
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/* */ |
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/**************************************************************************/ |
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UINT _lx_nand_flash_mapped_block_list_add(LX_NAND_FLASH* nand_flash, ULONG block_mapping_index) |
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{ |
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ULONG insert_position; |
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ULONG search_position; |
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UCHAR new_block_erase_count; |
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/* Get insert position for the mapped block list. */ |
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insert_position = nand_flash -> lx_nand_flash_mapped_block_list_head; |
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/* Check if the list if full. */ |
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✗✓ |
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if (insert_position < nand_flash -> lx_nand_flash_free_block_list_tail) |
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{ |
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/* Return an error. */ |
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return(LX_ERROR); |
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} |
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/* Get the erase count. */ |
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new_block_erase_count = nand_flash -> lx_nand_flash_erase_count_table[nand_flash -> lx_nand_flash_block_mapping_table[block_mapping_index]]; |
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/* Add one block to the free list. */ |
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nand_flash -> lx_nand_flash_mapped_block_list_head--; |
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/* Initialize the search pointer. */ |
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search_position = insert_position + 1; |
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/* Loop to search the insert position. */ |
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✓✓ |
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while ((search_position < nand_flash -> lx_nand_flash_block_list_size) && |
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✓✓ |
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(nand_flash -> lx_nand_flash_erase_count_table[nand_flash -> lx_nand_flash_block_mapping_table[nand_flash -> lx_nand_flash_block_list[search_position]]] < new_block_erase_count)) |
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{ |
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/* Move the item in the list. */ |
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nand_flash -> lx_nand_flash_block_list[insert_position] = nand_flash -> lx_nand_flash_block_list[search_position]; |
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search_position++; |
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insert_position++; |
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} |
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/* Insert the new block to the list. */ |
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nand_flash -> lx_nand_flash_block_list[insert_position] = (USHORT)block_mapping_index; |
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/* Return successful completion. */ |
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return(LX_SUCCESS); |
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} |
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