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https://github.com/eclipse-threadx/levelx.git
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Update on 18 Jan 2023. Expand to see details.
22299de Remove internal deprecated files. 2b9332f Fix ECC issues by new NAND logic 6a5eda1 Add a notice for not released file. b756fb0 Upgrade to the latest Container Images.
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Xiuwen Cai
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/**************************************************************************/
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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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/** 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_block_data_move PORTABLE C */
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/* 6.x */
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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 finds a block with less erase count and copies pages */
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/* into new block. */
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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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/* new_block New block number */
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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_nand_flash_mapped_block_list_get Get mapped block index */
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/* _lx_nand_flash_block_find Find the mapped block */
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/* _lx_nand_flash_data_page_copy Copy data pages */
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/* _lx_nand_flash_free_block_list_add Add free block to list */
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/* _lx_nand_flash_block_status_set Set block status */
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/* _lx_nand_flash_block_mapping_set Set block mapping */
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/* _lx_nand_flash_mapped_block_list_add Add mapped block to list */
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/* _lx_nand_flash_driver_block_erase Erase block */
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/* _lx_nand_flash_erase_count_set Set erase count */
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/* _lx_nand_flash_free_block_list_add Add free block to list */
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/* _lx_nand_flash_system_error Internal system error handler */
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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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/* */
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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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/* xx-xx-xxxx Xiuwen Cai Initial Version 6.x */
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/* */
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/**************************************************************************/
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UINT _lx_nand_flash_block_data_move(LX_NAND_FLASH *nand_flash, ULONG new_block)
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{
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UINT status;
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ULONG block;
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USHORT block_status;
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USHORT new_block_status;
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ULONG block_mapping_index;
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/* Get the mapped address to move the data. */
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status = _lx_nand_flash_mapped_block_list_get(nand_flash, &block_mapping_index);
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if (status)
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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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/* Find the block number to be moved. */
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status = _lx_nand_flash_block_find(nand_flash, block_mapping_index * nand_flash -> lx_nand_flash_pages_per_block, &block, &block_status);
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/* Check the status. */
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if (status)
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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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/* Set new block status to allocated for now. */
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new_block_status = LX_NAND_BLOCK_STATUS_ALLOCATED;
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/* Copy data from old block to new block. */
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status = _lx_nand_flash_data_page_copy(nand_flash, block_mapping_index * nand_flash -> lx_nand_flash_pages_per_block, block, block_status, new_block, &new_block_status, nand_flash -> lx_nand_flash_pages_per_block);
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/* Check the status. */
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if (status)
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{
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/* Call system error handler. */
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_lx_nand_flash_system_error(nand_flash, status, new_block, 0);
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/* Return an error. */
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return(LX_ERROR);
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}
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/* Check if no page was written. */
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if ((new_block_status & LX_NAND_BLOCK_STATUS_PAGE_NUMBER_MASK) == 0)
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{
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/* Mark the new block as free. */
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new_block_status = LX_NAND_BLOCK_STATUS_FREE;
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/* Add the new block to free list. */
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_lx_nand_flash_free_block_list_add(nand_flash, new_block);
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}
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/* Set the block status for the new block. */
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status = _lx_nand_flash_block_status_set(nand_flash, new_block, new_block_status);
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/* Check for an error from flash driver. */
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if (status)
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{
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/* Call system error handler. */
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_lx_nand_flash_system_error(nand_flash, status, new_block, 0);
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/* Return an error. */
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return(LX_ERROR);
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}
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/* Check if the block is actually mapped. */
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if (new_block_status == LX_NAND_BLOCK_STATUS_FREE)
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{
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/* Unmap the block. */
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new_block = LX_NAND_BLOCK_UNMAPPED;
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}
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/* Update block mapping. */
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_lx_nand_flash_block_mapping_set(nand_flash, block_mapping_index * nand_flash -> lx_nand_flash_pages_per_block, new_block);
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/* Check if the block is actually mapped. */
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if (new_block != LX_NAND_BLOCK_UNMAPPED)
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{
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/* Add the block to mapped list. */
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_lx_nand_flash_mapped_block_list_add(nand_flash, block_mapping_index);
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}
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/* Erase the old block. */
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status = _lx_nand_flash_driver_block_erase(nand_flash, block, nand_flash -> lx_nand_flash_base_erase_count + nand_flash -> lx_nand_flash_erase_count_table[block] + 1);
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/* Check for an error from flash driver. */
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if (status)
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{
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/* Call system error handler. */
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_lx_nand_flash_system_error(nand_flash, status, block, 0);
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/* Return an error. */
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return(LX_ERROR);
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}
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/* Update the erase count for the erased block. */
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status = _lx_nand_flash_erase_count_set(nand_flash, block, (UCHAR)(nand_flash -> lx_nand_flash_erase_count_table[block] + 1));
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/* Check for an error from flash driver. */
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if (status)
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{
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/* Call system error handler. */
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_lx_nand_flash_system_error(nand_flash, status, block, 0);
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/* Return an error. */
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return(LX_ERROR);
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}
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/* Set the block status to free. */
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status = _lx_nand_flash_block_status_set(nand_flash, block, LX_NAND_BLOCK_STATUS_FREE);
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/* Check for an error from flash driver. */
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if (status)
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{
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/* Call system error handler. */
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_lx_nand_flash_system_error(nand_flash, status, block, 0);
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/* Return an error. */
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return(LX_ERROR);
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}
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/* Add the block to free block list. */
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status = _lx_nand_flash_free_block_list_add(nand_flash, block);
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/* Return status. */
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return(status);
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}
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