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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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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 Simulator */ |
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/** */ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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/* Include necessary files. */ |
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#include "lx_api.h" |
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/* Define constants for the NAND flash simulation. */ |
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#define TOTAL_BLOCKS 1024 |
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#define PHYSICAL_PAGES_PER_BLOCK 256 /* Min value of 2 */ |
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#define BYTES_PER_PHYSICAL_PAGE 512 /* 512 bytes per page */ |
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#define WORDS_PER_PHYSICAL_PAGE 512 / 4 /* Words per page */ |
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#define SPARE_BYTES_PER_PAGE 16 /* 16 "spare" bytes per page */ |
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/* For 2048 byte block spare area: */ |
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#define BAD_BLOCK_POSITION 0 /* 0 is the bad block byte postion */ |
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#define EXTRA_BYTE_POSITION 0 /* 0 is the extra bytes starting byte postion */ |
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#define ECC_BYTE_POSITION 8 /* 8 is the ECC starting byte position */ |
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#define SPARE_DATA1_OFFSET 4 |
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#define SPARE_DATA1_LENGTH 4 |
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#define SPARE_DATA2_OFFSET 2 |
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#define SPARE_DATA2_LENGTH 2 |
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/* Definition of the spare area is relative to the block size of the NAND part and perhaps manufactures of the NAND part. |
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Here are some common definitions: |
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256 Byte Block |
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Bytes Meaning |
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0,1,2 ECC bytes |
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3,4,6,7 Extra |
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5 Bad block flag |
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512 Byte Block |
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Bytes Meaning |
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0,1,2,3,6,7 ECC bytes |
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8-15 Extra |
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5 Bad block flag |
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2048 Byte Block |
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Bytes Meaning |
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0 Bad block flag |
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2-39 Extra |
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40-63 ECC bytes |
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*/ |
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typedef struct PHYSICAL_PAGE_STRUCT |
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{ |
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unsigned long memory[WORDS_PER_PHYSICAL_PAGE]; |
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unsigned char spare[SPARE_BYTES_PER_PAGE]; |
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} PHYSICAL_PAGE; |
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typedef struct NAND_BLOCK_DIAG_STRUCT |
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{ |
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unsigned long erases; |
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unsigned long page_writes[PHYSICAL_PAGES_PER_BLOCK]; |
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unsigned long max_page_writes[PHYSICAL_PAGES_PER_BLOCK]; |
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} NAND_BLOCK_DIAG; |
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typedef struct NAND_FLASH_BLOCK_STRUCT |
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{ |
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PHYSICAL_PAGE physical_pages[PHYSICAL_PAGES_PER_BLOCK]; |
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} NAND_FLASH_BLOCK; |
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NAND_FLASH_BLOCK nand_memory_area[TOTAL_BLOCKS]; |
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NAND_BLOCK_DIAG nand_block_diag[TOTAL_BLOCKS]; |
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/* Define NAND flash buffer for LevelX. */ |
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ULONG nand_flash_simulator_buffer[WORDS_PER_PHYSICAL_PAGE]; |
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ULONG *nand_flash_memory; |
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UINT _lx_nand_flash_simulator_initialize(LX_NAND_FLASH *nand_flash); |
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UINT _lx_nand_flash_simulator_erase_all(VOID); |
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#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
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UINT _lx_nand_flash_simulator_read(LX_NAND_FLASH *nand_flash, ULONG block, ULONG page, ULONG *destination, ULONG words); |
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UINT _lx_nand_flash_simulator_write(LX_NAND_FLASH *nand_flash, ULONG block, ULONG page, ULONG *source, ULONG words); |
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UINT _lx_nand_flash_simulator_block_erase(LX_NAND_FLASH *nand_flash, ULONG block, ULONG erase_count); |
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UINT _lx_nand_flash_simulator_block_erased_verify(LX_NAND_FLASH *nand_flash, ULONG block); |
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UINT _lx_nand_flash_simulator_page_erased_verify(LX_NAND_FLASH *nand_flash, ULONG block, ULONG page); |
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UINT _lx_nand_flash_simulator_block_status_get(LX_NAND_FLASH *nand_flash, ULONG block, UCHAR *bad_block_byte); |
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UINT _lx_nand_flash_simulator_block_status_set(LX_NAND_FLASH *nand_flash, ULONG block, UCHAR bad_block_byte); |
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UINT _lx_nand_flash_simulator_extra_bytes_get(LX_NAND_FLASH *nand_flash, ULONG block, ULONG page, UCHAR *destination, UINT size); |
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UINT _lx_nand_flash_simulator_extra_bytes_set(LX_NAND_FLASH *nand_flash, ULONG block, ULONG page, UCHAR *source, UINT size); |
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UINT _lx_nand_flash_simulator_system_error(LX_NAND_FLASH *nand_flash, UINT error_code, ULONG block, ULONG page); |
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UINT _lx_nand_flash_simulator_pages_read(LX_NAND_FLASH *nand_flash, ULONG block, ULONG page, UCHAR* main_buffer, UCHAR* spare_buffer, ULONG pages); |
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UINT _lx_nand_flash_simulator_pages_write(LX_NAND_FLASH *nand_flash, ULONG block, ULONG page, UCHAR* main_buffer, UCHAR* spare_buffer, ULONG pages); |
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UINT _lx_nand_flash_simulator_pages_copy(LX_NAND_FLASH *nand_flash, ULONG source_block, ULONG source_page, ULONG destination_block, ULONG destination_page, ULONG pages, UCHAR* data_buffer); |
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#else |
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UINT _lx_nand_flash_simulator_read(ULONG block, ULONG page, ULONG *destination, ULONG words); |
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UINT _lx_nand_flash_simulator_write(ULONG block, ULONG page, ULONG *source, ULONG words); |
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UINT _lx_nand_flash_simulator_block_erase(ULONG block, ULONG erase_count); |
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UINT _lx_nand_flash_simulator_block_erased_verify(ULONG block); |
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UINT _lx_nand_flash_simulator_page_erased_verify(ULONG block, ULONG page); |
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UINT _lx_nand_flash_simulator_block_status_get(ULONG block, UCHAR *bad_block_byte); |
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UINT _lx_nand_flash_simulator_block_status_set(ULONG block, UCHAR bad_block_byte); |
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UINT _lx_nand_flash_simulator_extra_bytes_get(ULONG block, ULONG page, UCHAR *destination, UINT size); |
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UINT _lx_nand_flash_simulator_extra_bytes_set(ULONG block, ULONG page, UCHAR *source, UINT size); |
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UINT _lx_nand_flash_simulator_system_error(UINT error_code, ULONG block, ULONG page); |
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UINT _lx_nand_flash_simulator_pages_read(ULONG block, ULONG page, UCHAR* main_buffer, UCHAR* spare_buffer, ULONG pages); |
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UINT _lx_nand_flash_simulator_pages_write(ULONG block, ULONG page, UCHAR* main_buffer, UCHAR* spare_buffer, ULONG pages); |
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UINT _lx_nand_flash_simulator_pages_copy(ULONG source_block, ULONG source_page, ULONG destination_block, ULONG destination_page, ULONG pages, UCHAR* data_buffer); |
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#endif |
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UINT _lx_nand_flash_simulator_page_ecc_check(ULONG block, ULONG page); |
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UINT _lx_nand_flash_simulator_initialize(LX_NAND_FLASH *nand_flash) |
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{ |
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/* Setup the buffer pointer. */ |
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nand_flash_memory = (ULONG *) &nand_memory_area[0]; |
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/* Setup geometry of the NAND flash. */ |
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nand_flash -> lx_nand_flash_total_blocks = TOTAL_BLOCKS; |
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nand_flash -> lx_nand_flash_pages_per_block = PHYSICAL_PAGES_PER_BLOCK; |
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nand_flash -> lx_nand_flash_bytes_per_page = BYTES_PER_PHYSICAL_PAGE; |
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/* Setup function pointers for the NAND flash services. */ |
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nand_flash -> lx_nand_flash_driver_read = _lx_nand_flash_simulator_read; |
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nand_flash -> lx_nand_flash_driver_write = _lx_nand_flash_simulator_write; |
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nand_flash -> lx_nand_flash_driver_block_erase = _lx_nand_flash_simulator_block_erase; |
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nand_flash -> lx_nand_flash_driver_block_erased_verify = _lx_nand_flash_simulator_block_erased_verify; |
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nand_flash -> lx_nand_flash_driver_page_erased_verify = _lx_nand_flash_simulator_page_erased_verify; |
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nand_flash -> lx_nand_flash_driver_block_status_get = _lx_nand_flash_simulator_block_status_get; |
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nand_flash -> lx_nand_flash_driver_block_status_set = _lx_nand_flash_simulator_block_status_set; |
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nand_flash -> lx_nand_flash_driver_extra_bytes_get = _lx_nand_flash_simulator_extra_bytes_get; |
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nand_flash -> lx_nand_flash_driver_extra_bytes_set = _lx_nand_flash_simulator_extra_bytes_set; |
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nand_flash -> lx_nand_flash_driver_system_error = _lx_nand_flash_simulator_system_error; |
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nand_flash -> lx_nand_flash_driver_pages_read = _lx_nand_flash_simulator_pages_read; |
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nand_flash -> lx_nand_flash_driver_pages_write = _lx_nand_flash_simulator_pages_write; |
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nand_flash -> lx_nand_flash_driver_pages_copy = _lx_nand_flash_simulator_pages_copy; |
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nand_flash -> lx_nand_flash_spare_data1_offset = SPARE_DATA1_OFFSET; |
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nand_flash -> lx_nand_flash_spare_data1_length = SPARE_DATA1_LENGTH; |
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nand_flash -> lx_nand_flash_spare_data2_offset = SPARE_DATA2_OFFSET; |
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nand_flash -> lx_nand_flash_spare_data2_length = SPARE_DATA2_LENGTH; |
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nand_flash -> lx_nand_flash_spare_total_length = SPARE_BYTES_PER_PAGE; |
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/* Return success. */ |
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return(LX_SUCCESS); |
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} |
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UINT _lx_nand_flash_simulator_page_ecc_check(ULONG block, ULONG page) |
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{ |
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UINT i; |
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407470 |
INT ecc_pos = 0; |
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407470 |
UINT ecc_status = LX_SUCCESS; |
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UINT status; |
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✓✓ |
1222410 |
for (i = 0; i < BYTES_PER_PHYSICAL_PAGE; i += 256) |
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{ |
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status = lx_nand_flash_256byte_ecc_check((UCHAR*)&nand_memory_area[block].physical_pages[page].memory[i / sizeof(ULONG)], |
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814940 |
&nand_memory_area[block].physical_pages[page].spare[ECC_BYTE_POSITION + ecc_pos]); |
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✗✓ |
814940 |
if (status == LX_NAND_ERROR_NOT_CORRECTED) |
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{ |
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ecc_status = LX_NAND_ERROR_NOT_CORRECTED; |
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break; |
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} |
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✗✓ |
814940 |
else if (status == LX_NAND_ERROR_CORRECTED) |
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{ |
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ecc_status = LX_NAND_ERROR_CORRECTED; |
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} |
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814940 |
ecc_pos += 3; |
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} |
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✗✓ |
407470 |
if (ecc_status == LX_NAND_ERROR_CORRECTED) |
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{ |
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return(LX_ERROR); |
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} |
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✗✓ |
407470 |
else if (ecc_status == LX_NAND_ERROR_NOT_CORRECTED) |
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{ |
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return(LX_ERROR); |
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} |
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return ecc_status; |
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} |
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#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
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UINT _lx_nand_flash_simulator_read(LX_NAND_FLASH *nand_flash, ULONG block, ULONG page, ULONG *destination, ULONG words) |
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#else |
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407470 |
UINT _lx_nand_flash_simulator_read(ULONG block, ULONG page, ULONG *destination, ULONG words) |
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#endif |
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{ |
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ULONG *flash_address; |
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UINT status; |
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#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
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LX_PARAMETER_NOT_USED(nand_flash); |
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#endif |
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407470 |
status = _lx_nand_flash_simulator_page_ecc_check(block, page); |
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/* Pickup the flash address. */ |
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407470 |
flash_address = &(nand_memory_area[block].physical_pages[page].memory[0]); |
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/* Loop to read flash. */ |
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✓✓ |
52563630 |
while (words--) |
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{ |
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/* Copy word. */ |
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52156160 |
*destination++ = *flash_address++; |
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} |
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407470 |
return(status); |
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} |
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#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
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UINT _lx_nand_flash_simulator_pages_read(LX_NAND_FLASH *nand_flash, ULONG block, ULONG page, UCHAR* main_buffer, UCHAR* spare_buffer, ULONG pages) |
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#else |
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1406699 |
UINT _lx_nand_flash_simulator_pages_read(ULONG block, ULONG page, UCHAR* main_buffer, UCHAR* spare_buffer, ULONG pages) |
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#endif |
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{ |
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UINT i; |
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UINT status; |
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1406699 |
UINT ecc_status = LX_SUCCESS; |
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✓✓ |
2813398 |
for (i = 0; i < pages; i++) |
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{ |
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✓✓ |
1406699 |
if (main_buffer) |
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{ |
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#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
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status = _lx_nand_flash_simulator_read(nand_flash, block, page + i, (ULONG*)(main_buffer + i * BYTES_PER_PHYSICAL_PAGE), WORDS_PER_PHYSICAL_PAGE); |
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#else |
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407470 |
status = _lx_nand_flash_simulator_read(block, page + i, (ULONG*)(main_buffer + i * BYTES_PER_PHYSICAL_PAGE), WORDS_PER_PHYSICAL_PAGE); |
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#endif |
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✗✓ |
407470 |
if (status == LX_NAND_ERROR_CORRECTED) |
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{ |
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ecc_status = LX_NAND_ERROR_CORRECTED; |
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} |
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✗✓ |
407470 |
else if (status == LX_NAND_ERROR_NOT_CORRECTED) |
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{ |
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ecc_status = LX_ERROR; |
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break; |
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} |
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} |
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#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
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status = _lx_nand_flash_simulator_extra_bytes_get(nand_flash, block, page + i, spare_buffer + i * SPARE_BYTES_PER_PAGE, SPARE_BYTES_PER_PAGE); |
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#else |
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1406699 |
status = _lx_nand_flash_simulator_extra_bytes_get(block, page + i, spare_buffer + i * SPARE_BYTES_PER_PAGE, SPARE_BYTES_PER_PAGE); |
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#endif |
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} |
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1406699 |
return (ecc_status); |
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} |
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#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
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UINT _lx_nand_flash_simulator_write(LX_NAND_FLASH *nand_flash, ULONG block, ULONG page, ULONG *source, ULONG words) |
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#else |
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396827 |
UINT _lx_nand_flash_simulator_write(ULONG block, ULONG page, ULONG *source, ULONG words) |
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#endif |
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{ |
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ULONG *flash_address; |
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UCHAR *flash_spare_address; |
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UINT bytes_computed; |
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396827 |
UINT ecc_bytes =0; |
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UCHAR new_ecc_buffer[24]; |
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396827 |
UCHAR *new_ecc_buffer_ptr = new_ecc_buffer; |
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396827 |
UCHAR *ecc_buffer_ptr = new_ecc_buffer_ptr; |
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396827 |
ULONG *page_ptr = &(nand_memory_area[block].physical_pages[page].memory[0]); |
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#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
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LX_PARAMETER_NOT_USED(nand_flash); |
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#endif |
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/* Increment the diag info. */ |
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396827 |
nand_block_diag[block].page_writes[page]++; |
312 |
✓✓ |
396827 |
if (nand_block_diag[block].page_writes[page] > nand_block_diag[block].max_page_writes[page]) |
313 |
|
252824 |
nand_block_diag[block].max_page_writes[page] = nand_block_diag[block].page_writes[page]; |
314 |
|
|
|
315 |
|
|
/* Pickup the flash address. */ |
316 |
|
396827 |
flash_address = &(nand_memory_area[block].physical_pages[page].memory[0]); |
317 |
|
|
|
318 |
|
|
/* Loop to write flash. */ |
319 |
✓✓ |
51190683 |
while (words--) |
320 |
|
|
{ |
321 |
|
|
|
322 |
|
|
/* Can the word be written? We can clear new bits, but just can't unclear |
323 |
|
|
in a NAND device. */ |
324 |
✗✓ |
50793856 |
if ((*source & *flash_address) != *source) |
325 |
|
|
return(LX_INVALID_WRITE); |
326 |
|
|
|
327 |
|
|
/* Copy word. */ |
328 |
|
50793856 |
*flash_address++ = *source++; |
329 |
|
|
} |
330 |
|
|
|
331 |
|
|
/* Loop to compute the ECC over the entire NAND flash page. */ |
332 |
|
396827 |
bytes_computed = 0; |
333 |
|
|
|
334 |
✓✓ |
1190481 |
while (bytes_computed < BYTES_PER_PHYSICAL_PAGE) |
335 |
|
|
{ |
336 |
|
|
|
337 |
|
|
/* Compute the ECC for this 256 byte piece of the page. */ |
338 |
|
793654 |
_lx_nand_flash_256byte_ecc_compute((UCHAR *)page_ptr, (UCHAR *)new_ecc_buffer_ptr); |
339 |
|
|
|
340 |
|
|
/* Move to the next 256 byte portion of the page. */ |
341 |
|
793654 |
bytes_computed = bytes_computed + 256; |
342 |
|
|
|
343 |
|
|
/* Move the page buffer forward. */ |
344 |
|
793654 |
page_ptr = page_ptr + 64; |
345 |
|
|
|
346 |
|
793654 |
ecc_bytes = ecc_bytes + 3; |
347 |
|
|
|
348 |
|
|
/* Move the ECC buffer forward, note there are 3 bytes of ECC per page. */ |
349 |
|
793654 |
new_ecc_buffer_ptr = new_ecc_buffer_ptr + 3; |
350 |
|
|
} |
351 |
|
|
|
352 |
|
|
/* Setup destination pointer in the spare area. */ |
353 |
|
396827 |
flash_spare_address = (UCHAR *) &(nand_memory_area[block].physical_pages[page].spare[ECC_BYTE_POSITION]); |
354 |
✓✓ |
2777789 |
while(ecc_bytes--) |
355 |
|
|
{ |
356 |
|
|
|
357 |
|
|
/* Can the word be written? We can clear new bits, but just can't unclear |
358 |
|
|
in a NAND device. */ |
359 |
✗✓ |
2380962 |
if ((*ecc_buffer_ptr & *flash_spare_address) != *ecc_buffer_ptr) |
360 |
|
|
return(LX_INVALID_WRITE); |
361 |
|
|
|
362 |
|
|
/* Set an ecc byte in the spare area. */ |
363 |
|
2380962 |
*flash_spare_address++ = *ecc_buffer_ptr++; |
364 |
|
|
|
365 |
|
|
} |
366 |
|
396827 |
return(LX_SUCCESS); |
367 |
|
|
} |
368 |
|
|
|
369 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
370 |
|
|
UINT _lx_nand_flash_simulator_pages_write(LX_NAND_FLASH *nand_flash, ULONG block, ULONG page, UCHAR* main_buffer, UCHAR* spare_buffer, ULONG pages) |
371 |
|
|
#else |
372 |
|
396827 |
UINT _lx_nand_flash_simulator_pages_write(ULONG block, ULONG page, UCHAR* main_buffer, UCHAR* spare_buffer, ULONG pages) |
373 |
|
|
#endif |
374 |
|
|
{ |
375 |
|
|
|
376 |
|
|
UINT i; |
377 |
|
396827 |
UINT status = LX_SUCCESS; |
378 |
|
|
|
379 |
|
|
|
380 |
✓✓ |
793654 |
for (i = 0; i < pages; i++) |
381 |
|
|
{ |
382 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
383 |
|
|
_lx_nand_flash_simulator_extra_bytes_set(nand_flash, block, page + i, spare_buffer + i * SPARE_BYTES_PER_PAGE, SPARE_BYTES_PER_PAGE); |
384 |
|
|
status = _lx_nand_flash_simulator_write(nand_flash, block, page + i, (ULONG*)(main_buffer + i * BYTES_PER_PHYSICAL_PAGE), WORDS_PER_PHYSICAL_PAGE); |
385 |
|
|
#else |
386 |
|
396827 |
_lx_nand_flash_simulator_extra_bytes_set(block, page + i, spare_buffer + i * SPARE_BYTES_PER_PAGE, SPARE_BYTES_PER_PAGE); |
387 |
|
396827 |
status = _lx_nand_flash_simulator_write(block, page + i, (ULONG*)(main_buffer + i * BYTES_PER_PHYSICAL_PAGE), WORDS_PER_PHYSICAL_PAGE); |
388 |
|
|
#endif |
389 |
✗✓ |
396827 |
if (status == LX_INVALID_WRITE) |
390 |
|
|
{ |
391 |
|
|
break; |
392 |
|
|
} |
393 |
|
|
|
394 |
|
|
} |
395 |
|
396827 |
return (status); |
396 |
|
|
} |
397 |
|
|
|
398 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
399 |
|
|
UINT _lx_nand_flash_simulator_pages_copy(LX_NAND_FLASH *nand_flash, ULONG source_block, ULONG source_page, ULONG destination_block, ULONG destination_page, ULONG pages, UCHAR *data_buffer) |
400 |
|
|
#else |
401 |
|
8731 |
UINT _lx_nand_flash_simulator_pages_copy(ULONG source_block, ULONG source_page, ULONG destination_block, ULONG destination_page, ULONG pages, UCHAR *data_buffer) |
402 |
|
|
#endif |
403 |
|
|
{ |
404 |
|
|
UINT i; |
405 |
|
8731 |
UINT status = LX_SUCCESS; |
406 |
|
|
|
407 |
|
|
|
408 |
✓✓ |
299314 |
for (i = 0; i < pages; i++) |
409 |
|
|
{ |
410 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
411 |
|
|
status = _lx_nand_flash_simulator_pages_read(nand_flash, source_block, source_page + i, data_buffer, data_buffer + BYTES_PER_PHYSICAL_PAGE, 1); |
412 |
|
|
#else |
413 |
|
290583 |
status = _lx_nand_flash_simulator_pages_read(source_block, source_page + i, data_buffer, data_buffer + BYTES_PER_PHYSICAL_PAGE, 1); |
414 |
|
|
#endif |
415 |
✗✓✗✗
|
290583 |
if (status != LX_SUCCESS && status != LX_NAND_ERROR_CORRECTED) |
416 |
|
|
{ |
417 |
|
|
break; |
418 |
|
|
} |
419 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
420 |
|
|
status = _lx_nand_flash_simulator_pages_write(nand_flash, destination_block, destination_page + i, data_buffer, data_buffer + BYTES_PER_PHYSICAL_PAGE, 1); |
421 |
|
|
#else |
422 |
|
290583 |
status = _lx_nand_flash_simulator_pages_write(destination_block, destination_page + i, data_buffer, data_buffer + BYTES_PER_PHYSICAL_PAGE, 1); |
423 |
|
|
#endif |
424 |
✗✓ |
290583 |
if (status != LX_SUCCESS) |
425 |
|
|
{ |
426 |
|
|
break; |
427 |
|
|
} |
428 |
|
|
|
429 |
|
|
} |
430 |
|
8731 |
return (status); |
431 |
|
|
|
432 |
|
|
} |
433 |
|
|
|
434 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
435 |
|
|
UINT _lx_nand_flash_simulator_block_erase(LX_NAND_FLASH *nand_flash, ULONG block, ULONG erase_count) |
436 |
|
|
#else |
437 |
|
5514 |
UINT _lx_nand_flash_simulator_block_erase(ULONG block, ULONG erase_count) |
438 |
|
|
#endif |
439 |
|
|
{ |
440 |
|
|
|
441 |
|
|
ULONG *pointer; |
442 |
|
|
ULONG words; |
443 |
|
|
UINT i; |
444 |
|
|
|
445 |
|
|
LX_PARAMETER_NOT_USED(erase_count); |
446 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
447 |
|
|
LX_PARAMETER_NOT_USED(nand_flash); |
448 |
|
|
#endif |
449 |
|
|
|
450 |
|
|
/* Increment the diag info. */ |
451 |
|
5514 |
nand_block_diag[block].erases++; |
452 |
✓✓ |
1417098 |
for (i = 0; i < PHYSICAL_PAGES_PER_BLOCK;i++) |
453 |
|
1411584 |
nand_block_diag[block].page_writes[i] = 0; |
454 |
|
|
|
455 |
|
|
/* Setup pointer. */ |
456 |
|
5514 |
pointer = (ULONG *) &nand_memory_area[block]; |
457 |
|
|
|
458 |
|
|
/* Loop to erase block. */ |
459 |
|
5514 |
words = sizeof(NAND_FLASH_BLOCK)/sizeof(ULONG); |
460 |
✓✓ |
186334602 |
while (words--) |
461 |
|
|
{ |
462 |
|
|
|
463 |
|
|
/* Erase word of block. */ |
464 |
|
186329088 |
*pointer++ = (ULONG) 0xFFFFFFFF; |
465 |
|
|
} |
466 |
|
|
|
467 |
|
5514 |
return(LX_SUCCESS); |
468 |
|
|
} |
469 |
|
|
|
470 |
|
|
|
471 |
|
4 |
UINT _lx_nand_flash_simulator_erase_all(VOID) |
472 |
|
|
{ |
473 |
|
|
|
474 |
|
|
ULONG *pointer; |
475 |
|
|
ULONG words; |
476 |
|
|
UINT i, j; |
477 |
|
|
|
478 |
|
|
|
479 |
|
|
/* Increment the diag info. */ |
480 |
✓✓ |
4100 |
for (i = 0; i < TOTAL_BLOCKS; i++) |
481 |
|
|
{ |
482 |
|
4096 |
nand_block_diag[i].erases = 0; |
483 |
✓✓ |
1052672 |
for (j = 0; j < PHYSICAL_PAGES_PER_BLOCK;j++) |
484 |
|
1048576 |
nand_block_diag[i].page_writes[j] = 0; |
485 |
|
|
} |
486 |
|
|
|
487 |
|
|
/* Setup pointer. */ |
488 |
|
4 |
pointer = (ULONG *) &nand_memory_area[0]; |
489 |
|
|
|
490 |
|
|
/* Loop to erase block. */ |
491 |
|
4 |
words = sizeof(nand_memory_area)/(sizeof(ULONG)); |
492 |
✓✓ |
138412036 |
while (words--) |
493 |
|
|
{ |
494 |
|
|
|
495 |
|
|
/* Erase word of block. */ |
496 |
|
138412032 |
*pointer++ = (ULONG) 0xFFFFFFFF; |
497 |
|
|
} |
498 |
|
|
|
499 |
|
4 |
return(LX_SUCCESS); |
500 |
|
|
} |
501 |
|
|
|
502 |
|
|
|
503 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
504 |
|
|
UINT _lx_nand_flash_simulator_block_erased_verify(LX_NAND_FLASH *nand_flash, ULONG block) |
505 |
|
|
#else |
506 |
|
|
UINT _lx_nand_flash_simulator_block_erased_verify(ULONG block) |
507 |
|
|
#endif |
508 |
|
|
{ |
509 |
|
|
|
510 |
|
|
ULONG *word_ptr; |
511 |
|
|
ULONG words; |
512 |
|
|
|
513 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
514 |
|
|
LX_PARAMETER_NOT_USED(nand_flash); |
515 |
|
|
#endif |
516 |
|
|
|
517 |
|
|
/* Determine if the block is completely erased. */ |
518 |
|
|
|
519 |
|
|
/* Pickup the pointer to the first word of the block. */ |
520 |
|
|
word_ptr = (ULONG *) &nand_memory_area[block]; |
521 |
|
|
|
522 |
|
|
/* Calculate the number of words in a block. */ |
523 |
|
|
words = sizeof(NAND_FLASH_BLOCK)/sizeof(ULONG); |
524 |
|
|
|
525 |
|
|
/* Loop to check if the block is erased. */ |
526 |
|
|
while (words--) |
527 |
|
|
{ |
528 |
|
|
|
529 |
|
|
/* Is this word erased? */ |
530 |
|
|
if (*word_ptr++ != 0xFFFFFFFF) |
531 |
|
|
return(LX_ERROR); |
532 |
|
|
} |
533 |
|
|
|
534 |
|
|
/* Return success. */ |
535 |
|
|
return(LX_SUCCESS); |
536 |
|
|
} |
537 |
|
|
|
538 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
539 |
|
|
UINT _lx_nand_flash_simulator_page_erased_verify(LX_NAND_FLASH *nand_flash, ULONG block, ULONG page) |
540 |
|
|
#else |
541 |
|
|
UINT _lx_nand_flash_simulator_page_erased_verify(ULONG block, ULONG page) |
542 |
|
|
#endif |
543 |
|
|
{ |
544 |
|
|
|
545 |
|
|
ULONG *word_ptr; |
546 |
|
|
ULONG words; |
547 |
|
|
|
548 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
549 |
|
|
LX_PARAMETER_NOT_USED(nand_flash); |
550 |
|
|
#endif |
551 |
|
|
|
552 |
|
|
/* Determine if the block is completely erased. */ |
553 |
|
|
|
554 |
|
|
/* Pickup the pointer to the first word of the block's page. */ |
555 |
|
|
word_ptr = (ULONG *) &nand_memory_area[block].physical_pages[page]; |
556 |
|
|
|
557 |
|
|
/* Calculate the number of words in a block. */ |
558 |
|
|
words = WORDS_PER_PHYSICAL_PAGE; |
559 |
|
|
|
560 |
|
|
/* Loop to check if the page is erased. */ |
561 |
|
|
while (words--) |
562 |
|
|
{ |
563 |
|
|
|
564 |
|
|
/* Is this word erased? */ |
565 |
|
|
if (*word_ptr++ != 0xFFFFFFFF) |
566 |
|
|
return(LX_ERROR); |
567 |
|
|
} |
568 |
|
|
|
569 |
|
|
/* Return success. */ |
570 |
|
|
return(LX_SUCCESS); |
571 |
|
|
} |
572 |
|
|
|
573 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
574 |
|
|
UINT _lx_nand_flash_simulator_block_status_get(LX_NAND_FLASH *nand_flash, ULONG block, UCHAR *bad_block_byte) |
575 |
|
|
#else |
576 |
|
4101 |
UINT _lx_nand_flash_simulator_block_status_get(ULONG block, UCHAR *bad_block_byte) |
577 |
|
|
#endif |
578 |
|
|
{ |
579 |
|
|
|
580 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
581 |
|
|
LX_PARAMETER_NOT_USED(nand_flash); |
582 |
|
|
#endif |
583 |
|
|
|
584 |
|
|
/* Pickup the bad block byte and return it. */ |
585 |
|
4101 |
*bad_block_byte = nand_memory_area[block].physical_pages[0].spare[BAD_BLOCK_POSITION]; |
586 |
|
|
|
587 |
|
|
/* Return success. */ |
588 |
|
4101 |
return(LX_SUCCESS); |
589 |
|
|
} |
590 |
|
|
|
591 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
592 |
|
|
UINT _lx_nand_flash_simulator_block_status_set(LX_NAND_FLASH *nand_flash, ULONG block, UCHAR bad_block_byte) |
593 |
|
|
#else |
594 |
|
|
UINT _lx_nand_flash_simulator_block_status_set(ULONG block, UCHAR bad_block_byte) |
595 |
|
|
#endif |
596 |
|
|
{ |
597 |
|
|
|
598 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
599 |
|
|
LX_PARAMETER_NOT_USED(nand_flash); |
600 |
|
|
#endif |
601 |
|
|
|
602 |
|
|
/* Set the bad block byte. */ |
603 |
|
|
nand_memory_area[block].physical_pages[0].spare[BAD_BLOCK_POSITION] = bad_block_byte; |
604 |
|
|
|
605 |
|
|
/* Return success. */ |
606 |
|
|
return(LX_SUCCESS); |
607 |
|
|
} |
608 |
|
|
|
609 |
|
|
|
610 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
611 |
|
|
UINT _lx_nand_flash_simulator_extra_bytes_get(LX_NAND_FLASH *nand_flash, ULONG block, ULONG page, UCHAR *destination, UINT size) |
612 |
|
|
#else |
613 |
|
1406699 |
UINT _lx_nand_flash_simulator_extra_bytes_get(ULONG block, ULONG page, UCHAR *destination, UINT size) |
614 |
|
|
#endif |
615 |
|
|
{ |
616 |
|
|
|
617 |
|
|
UCHAR *source; |
618 |
|
|
|
619 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
620 |
|
|
LX_PARAMETER_NOT_USED(nand_flash); |
621 |
|
|
#endif |
622 |
|
|
|
623 |
|
|
/* Setup source pointer in the spare area. */ |
624 |
|
1406699 |
source = (UCHAR *) &(nand_memory_area[block].physical_pages[page].spare[EXTRA_BYTE_POSITION]); |
625 |
|
|
|
626 |
|
|
/* Loop to return the extra bytes requested. */ |
627 |
✓✓ |
23913883 |
while (size--) |
628 |
|
|
{ |
629 |
|
|
|
630 |
|
|
/* Retrieve an extra byte from the spare area. */ |
631 |
|
22507184 |
*destination++ = *source++; |
632 |
|
|
} |
633 |
|
|
|
634 |
|
|
/* Return success. */ |
635 |
|
1406699 |
return(LX_SUCCESS); |
636 |
|
|
} |
637 |
|
|
|
638 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
639 |
|
|
UINT _lx_nand_flash_simulator_extra_bytes_set(LX_NAND_FLASH *nand_flash, ULONG block, ULONG page, UCHAR *source, UINT size) |
640 |
|
|
#else |
641 |
|
396827 |
UINT _lx_nand_flash_simulator_extra_bytes_set(ULONG block, ULONG page, UCHAR *source, UINT size) |
642 |
|
|
#endif |
643 |
|
|
{ |
644 |
|
|
|
645 |
|
|
UCHAR *destination; |
646 |
|
|
|
647 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
648 |
|
|
LX_PARAMETER_NOT_USED(nand_flash); |
649 |
|
|
#endif |
650 |
|
|
|
651 |
|
|
/* Increment the diag info. */ |
652 |
|
396827 |
nand_block_diag[block].page_writes[page]++; |
653 |
✓✓ |
396827 |
if (nand_block_diag[block].page_writes[page] > nand_block_diag[block].max_page_writes[page]) |
654 |
|
252824 |
nand_block_diag[block].max_page_writes[page] = nand_block_diag[block].page_writes[page]; |
655 |
|
|
|
656 |
|
|
/* Setup destination pointer in the spare area. */ |
657 |
|
396827 |
destination = (UCHAR *) &(nand_memory_area[block].physical_pages[page].spare[EXTRA_BYTE_POSITION]); |
658 |
|
|
|
659 |
|
|
/* Loop to set the extra bytes. */ |
660 |
✓✓ |
6746059 |
while (size--) |
661 |
|
|
{ |
662 |
|
|
|
663 |
|
|
/* Set an extra byte in the spare area. */ |
664 |
|
6349232 |
*destination++ = *source++; |
665 |
|
|
} |
666 |
|
|
|
667 |
|
|
/* Return success. */ |
668 |
|
396827 |
return(LX_SUCCESS); |
669 |
|
|
} |
670 |
|
|
|
671 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
672 |
|
|
UINT _lx_nand_flash_simulator_system_error(LX_NAND_FLASH *nand_flash, UINT error_code, ULONG block, ULONG page) |
673 |
|
|
#else |
674 |
|
|
UINT _lx_nand_flash_simulator_system_error(UINT error_code, ULONG block, ULONG page) |
675 |
|
|
#endif |
676 |
|
|
{ |
677 |
|
|
LX_PARAMETER_NOT_USED(error_code); |
678 |
|
|
LX_PARAMETER_NOT_USED(block); |
679 |
|
|
LX_PARAMETER_NOT_USED(page); |
680 |
|
|
#ifdef LX_NAND_ENABLE_CONTROL_BLOCK_FOR_DRIVER_INTERFACE |
681 |
|
|
LX_PARAMETER_NOT_USED(nand_flash); |
682 |
|
|
#endif |
683 |
|
|
|
684 |
|
|
/* Custom processing goes here... all errors except for LX_NAND_ERROR_CORRECTED are fatal. */ |
685 |
|
|
return(LX_ERROR); |
686 |
|
|
} |
687 |
|
|
|
688 |
|
|
|
689 |
|
|
|