71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
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#ifndef __DRV_FLASH_H__
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#define __DRV_FLASH_H__
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#include <stdint.h>
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#include <string.h>
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enum flash_state {
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/* 数据无效帧头/帧尾，等于flash擦除后的值取反 */
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FLASH_NULL = 0x00,
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/* 数据可读帧头 */
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FLASH_READABLE_HEAD = 0xa5,
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/* 数据可读帧尾 */
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FLASH_READABLE_TAIL = 0x5a,
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/* 数据可写帧头/帧尾，等于flash擦除后的值 */
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FLASH_WRITABLE = 0xff,
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};
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typedef enum {
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/* 不覆写模式 */
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FLASH_NO_OVERWRITING_MODE = 0x00,
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/* 覆写模式, 即写入数据后将先前同类型数据置为无效 */
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FLASH_OVERWRITING_MODE,
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/* 读取不清空模式 */
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FLASH_NO_CLEAR_MODE,
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/* 读取清空模式，即读取数据所在的flash位置0 */
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FLASH_CLEAR_MODE,
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} flash_write_read_mode_t;
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typedef struct {
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/* 可读表标志位,表示当前是否存在可读数据 */
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uint8_t state;
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/* 可读数据大小, 包含帧头帧尾 */
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uint16_t size;
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/* 可读数据起始地址, 包含帧头 */
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uint32_t addr;
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} type_readable_frame_t;
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typedef struct
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{
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/* 地址对齐数, 1-2^5 */
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uint8_t align_num;
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/* flash写入模式 */
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flash_write_read_mode_t flash_write_mode;
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/* flashdu'q'b模式 */
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flash_write_read_mode_t flash_read_mode;
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/* 管理的flash起始地址,按扇区对齐 */
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uint32_t flash_start_address;
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/* 管理的flash扇区数量 */
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uint32_t manage_sector_num;
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/* flash的扇区大小 */
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uint32_t sector_size;
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/* 开启flash */
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void (*open_flash)(void);
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/* 关闭flash */
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void (*close_flash)(void);
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/* 读flash */
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void (*read_flash)(uint8_t *pbuf, uint32_t addr, uint16_t datalen);
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/* 写flash */
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void (*write_flash)(uint8_t *pbuf, uint32_t addr, uint16_t datalen);
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/* 擦除flash */
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uint8_t (*erase_sector)(uint32_t addr);
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} flash_manage_t;
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int8_t flash_manage_init(flash_manage_t *flash_manage);
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int8_t flash_manage_read(flash_manage_t *flash_manage, uint8_t *pbuf, uint8_t frame_type);
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int8_t flash_manage_write(flash_manage_t *flash_manage, uint8_t *pbuf, uint16_t size, uint8_t frame_type);
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#endif /* _FLASH_MANAGE_H__ */
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