rt-thread-official/components/fal/inc/fal.h

161 lines
3.6 KiB
C

/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-05-17 armink the first version
*/
#ifndef _FAL_H_
#define _FAL_H_
#include <rtconfig.h>
#include <fal_cfg.h>
#include "fal_def.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* FAL (Flash Abstraction Layer) initialization.
* It will initialize all flash device and all flash partition.
*
* @return >= 0: partitions total number
*/
int fal_init(void);
/* =============== flash device operator API =============== */
/**
* find flash device by name
*
* @param name flash device name
*
* @return != NULL: flash device
* NULL: not found
*/
const struct fal_flash_dev *fal_flash_device_find(const char *name);
/* =============== partition operator API =============== */
/**
* find the partition by name
*
* @param name partition name
*
* @return != NULL: partition
* NULL: not found
*/
const struct fal_partition *fal_partition_find(const char *name);
/**
* get the partition table
*
* @param len return the partition table length
*
* @return partition table
*/
const struct fal_partition *fal_get_partition_table(size_t *len);
/**
* set partition table temporarily
* This setting will modify the partition table temporarily, the setting will be lost after restart.
*
* @param table partition table
* @param len partition table length
*/
void fal_set_partition_table_temp(struct fal_partition *table, size_t len);
/**
* read data from partition
*
* @param part partition
* @param addr relative address for partition
* @param buf read buffer
* @param size read size
*
* @return >= 0: successful read data size
* -1: error
*/
int fal_partition_read(const struct fal_partition *part, uint32_t addr, uint8_t *buf, size_t size);
/**
* write data to partition
*
* @param part partition
* @param addr relative address for partition
* @param buf write buffer
* @param size write size
*
* @return >= 0: successful write data size
* -1: error
*/
int fal_partition_write(const struct fal_partition *part, uint32_t addr, const uint8_t *buf, size_t size);
/**
* erase partition data
*
* @param part partition
* @param addr relative address for partition
* @param size erase size
*
* @return >= 0: successful erased data size
* -1: error
*/
int fal_partition_erase(const struct fal_partition *part, uint32_t addr, size_t size);
/**
* erase partition all data
*
* @param part partition
*
* @return >= 0: successful erased data size
* -1: error
*/
int fal_partition_erase_all(const struct fal_partition *part);
/**
* print the partition table
*/
void fal_show_part_table(void);
/* =============== API provided to RT-Thread =============== */
/**
* create RT-Thread block device by specified partition
*
* @param parition_name partition name
*
* @return != NULL: created block device
* NULL: created failed
*/
struct rt_device *fal_blk_device_create(const char *parition_name);
#if defined(RT_USING_MTD_NOR)
/**
* create RT-Thread MTD NOR device by specified partition
*
* @param parition_name partition name
*
* @return != NULL: created MTD NOR device
* NULL: created failed
*/
struct rt_device *fal_mtd_nor_device_create(const char *parition_name);
#endif /* defined(RT_USING_MTD_NOR) */
/**
* create RT-Thread char device by specified partition
*
* @param parition_name partition name
*
* @return != NULL: created char device
* NULL: created failed
*/
struct rt_device *fal_char_device_create(const char *parition_name);
#ifdef __cplusplus
}
#endif
#endif /* _FAL_H_ */