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91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
/*
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* Copyright (c) 2020, Armink, <armink.ztl@gmail.com>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief low level API and definition
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*/
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#ifndef _FDB_LOW_LVL_H_
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#define _FDB_LOW_LVL_H_
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#include "fdb_cfg.h"
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#include "fdb_def.h"
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#if (FDB_WRITE_GRAN == 1)
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#define FDB_STATUS_TABLE_SIZE(status_number) \
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((status_number * FDB_WRITE_GRAN + 7) / 8)
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#else
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#define FDB_STATUS_TABLE_SIZE(status_number) \
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(((status_number - 1) * FDB_WRITE_GRAN + 7) / 8)
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#endif
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/* the data is erased */
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#define FDB_BYTE_ERASED 0xFF
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/* the data is written */
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#define FDB_BYTE_WRITTEN 0x00
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/* Return the most contiguous size aligned at specified width. RT_ALIGN(13, 4)
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* would return 16.
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*/
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/* align by write granularity */
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#define FDB_WG_ALIGN(size) (FDB_ALIGN(size, (FDB_WRITE_GRAN + 7) / 8))
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#define FDB_ALIGN align_by // fix ALIGN issue on 64bit platform
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/**
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* Return the down number of aligned at specified width. RT_ALIGN_DOWN(13, 4)
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* would return 12.
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*/
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#define FDB_ALIGN_DOWN(size, align) ((size) & ~((align)-1))
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/* align down by write granularity */
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#define FDB_WG_ALIGN_DOWN(size) (FDB_ALIGN_DOWN(size, (FDB_WRITE_GRAN + 7) / 8))
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#define FDB_STORE_STATUS_TABLE_SIZE \
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FDB_STATUS_TABLE_SIZE(FDB_SECTOR_STORE_STATUS_NUM)
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#define FDB_DIRTY_STATUS_TABLE_SIZE \
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FDB_STATUS_TABLE_SIZE(FDB_SECTOR_DIRTY_STATUS_NUM)
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/* the data is unused */
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#if (FDB_BYTE_ERASED == 0xFF)
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#define FDB_DATA_UNUSED 0xFFFFFFFF
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#else
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#define FDB_DATA_UNUSED 0x00000000
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#endif
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fdb_err_t _fdb_kv_load(fdb_kvdb_t db);
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size_t _fdb_set_status(uint8_t status_table[],
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size_t status_num,
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size_t status_index);
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size_t _fdb_get_status(uint8_t status_table[], size_t status_num);
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uint32_t _fdb_continue_ff_addr(fdb_db_t db, uint32_t start, uint32_t end);
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fdb_err_t _fdb_init_ex(fdb_db_t db,
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const char* name,
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const char* part_name,
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fdb_db_type type,
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void* user_data);
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void _fdb_init_finish(fdb_db_t db, fdb_err_t result);
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void _fdb_deinit(fdb_db_t db);
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const char* _fdb_db_path(fdb_db_t db);
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fdb_err_t _fdb_write_status(fdb_db_t db,
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uint32_t addr,
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uint8_t status_table[],
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size_t status_num,
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size_t status_index,
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pika_bool sync);
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size_t _fdb_read_status(fdb_db_t db,
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uint32_t addr,
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uint8_t status_table[],
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size_t total_num);
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fdb_err_t _fdb_flash_read(fdb_db_t db, uint32_t addr, void* buf, size_t size);
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fdb_err_t _fdb_flash_erase(fdb_db_t db, uint32_t addr, size_t size);
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fdb_err_t _fdb_flash_write(fdb_db_t db,
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uint32_t addr,
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const void* buf,
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size_t size,
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pika_bool sync);
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#endif /* _FDB_LOW_LVL_H_ */
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