1 /**************************************************************************/ 2 /* */ 3 /* Copyright (c) Microsoft Corporation. All rights reserved. */ 4 /* */ 5 /* This software is licensed under the Microsoft Software License */ 6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */ 7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ 8 /* and in the root directory of this software. */ 9 /* */ 10 /**************************************************************************/ 11 12 13 /**************************************************************************/ 14 /**************************************************************************/ 15 /** */ 16 /** LevelX Component */ 17 /** */ 18 /** NOR Flash */ 19 /** */ 20 /**************************************************************************/ 21 /**************************************************************************/ 22 23 #define LX_SOURCE_CODE 24 25 26 /* Disable ThreadX error checking. */ 27 28 #ifndef LX_DISABLE_ERROR_CHECKING 29 #define LX_DISABLE_ERROR_CHECKING 30 #endif 31 32 33 /* Include necessary system files. */ 34 35 #include "lx_api.h" 36 37 38 /**************************************************************************/ 39 /* */ 40 /* FUNCTION RELEASE */ 41 /* */ 42 /* _lx_nor_flash_defragment PORTABLE C */ 43 /* 6.1.7 */ 44 /* AUTHOR */ 45 /* */ 46 /* William E. Lamie, Microsoft Corporation */ 47 /* */ 48 /* DESCRIPTION */ 49 /* */ 50 /* This function defragments the NOR flash. */ 51 /* */ 52 /* INPUT */ 53 /* */ 54 /* nor_flash NOR flash instance */ 55 /* */ 56 /* OUTPUT */ 57 /* */ 58 /* return status */ 59 /* */ 60 /* CALLS */ 61 /* */ 62 /* _lx_nor_flash_block_reclaim Reclaim a NOR flash block */ 63 /* tx_mutex_get Get thread protection */ 64 /* tx_mutex_put Release thread protection */ 65 /* */ 66 /* CALLED BY */ 67 /* */ 68 /* Application Code */ 69 /* Internal LevelX */ 70 /* */ 71 /* RELEASE HISTORY */ 72 /* */ 73 /* DATE NAME DESCRIPTION */ 74 /* */ 75 /* 05-19-2020 William E. Lamie Initial Version 6.0 */ 76 /* 09-30-2020 William E. Lamie Modified comment(s), */ 77 /* resulting in version 6.1 */ 78 /* 06-02-2021 Bhupendra Naphade Modified comment(s), */ 79 /* resulting in version 6.1.7 */ 80 /* */ 81 /**************************************************************************/ _lx_nor_flash_defragment(LX_NOR_FLASH * nor_flash)82UINT _lx_nor_flash_defragment(LX_NOR_FLASH *nor_flash) 83 { 84 85 ULONG i; 86 87 88 #ifdef LX_THREAD_SAFE_ENABLE 89 90 /* Obtain the thread safe mutex. */ 91 tx_mutex_get(&nor_flash -> lx_nor_flash_mutex, TX_WAIT_FOREVER); 92 #endif 93 94 /* Loop for max number of blocks, while there are obsolete count. */ 95 for (i = 0; i < nor_flash -> lx_nor_flash_total_blocks; i++) 96 { 97 98 /* Determine if there is any more defragment work. */ 99 if (nor_flash -> lx_nor_flash_obsolete_physical_sectors == 0) 100 break; 101 102 /* Call the block reclaim function to defragment. */ 103 _lx_nor_flash_block_reclaim(nor_flash); 104 } 105 106 #ifdef LX_THREAD_SAFE_ENABLE 107 108 /* Release the thread safe mutex. */ 109 tx_mutex_put(&nor_flash -> lx_nor_flash_mutex); 110 #endif 111 112 /* Return successful completion. */ 113 return(LX_SUCCESS); 114 } 115 116 117
