mirror of
https://github.com/eclipse-threadx/levelx.git
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133 lines
6.5 KiB
C
133 lines
6.5 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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/** 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 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_nand_flash_driver_block_status_get 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 calls the driver to get the block status and */
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/* updates the internal cache. */
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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 Block number */
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/* bad_block_flag Pointer to Bad block flag */
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/* */
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/* OUTPUT */
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/* */
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/* Completion Status */
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/* */
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/* CALLS */
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/* */
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/* (lx_nand_flash_driver_block_status_get) */
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/* NAND flash block status get */
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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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/* 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_nand_flash_driver_block_status_get(LX_NAND_FLASH *nand_flash, ULONG block, UCHAR *bad_block_flag)
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{
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UINT status;
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/* Determine if the block status cache is disabled. */
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if (nand_flash -> lx_nand_flash_block_status_cache == LX_NULL)
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{
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/* Increment the block status get count. */
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nand_flash -> lx_nand_flash_diagnostic_block_status_gets++;
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/* Call driver block status get function. */
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status = (nand_flash -> lx_nand_flash_driver_block_status_get)(block, bad_block_flag);
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}
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else
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{
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/* Determine if the block status cache entry is valid. */
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if (nand_flash -> lx_nand_flash_block_status_cache[block] != 0)
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{
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/* Simply return this value. */
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*bad_block_flag = nand_flash -> lx_nand_flash_block_status_cache[block];
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/* Increment the number of status byte cache hits. */
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nand_flash -> lx_nand_flash_diagnostic_block_status_cache_hits++;
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/* Return successful status. */
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status = LX_SUCCESS;
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}
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else
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{
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/* Increment the block status get count. */
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nand_flash -> lx_nand_flash_diagnostic_block_status_gets++;
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/* Call driver block status get function. */
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status = (nand_flash -> lx_nand_flash_driver_block_status_get)(block, bad_block_flag);
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/* Increment the number of status byte cache misses. */
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nand_flash -> lx_nand_flash_diagnostic_block_status_cache_misses++;
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/* Save the block status value in the cache. */
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nand_flash -> lx_nand_flash_block_status_cache[block] = *bad_block_flag;
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}
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}
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/* Return status. */
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return(status);
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}
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