#ifndef _PROTO_MODBUS_H_
#define _PROTO_MODBUS_H_

#include "main.h"

#define MODBUS_DEFAULT_ID (0x01)
#define MODBUS_SENDBUF_LEN (512U)

#define U16_DATA_L      (0)//低16位
#define U16_DATA_H      (1)//高16位

#define BIG_ENDIAN      (0)//大端序
#define LITTLE_ENDIAN   (1)//小端序

typedef struct _ModbusCommunicationSendBuf{
  u8 SendBuffer[MODBUS_SENDBUF_LEN];
  u16 Len;
}ModbusCommunicationSendBuf_t;

typedef struct _ModbusAnalysisData
{
    u8 ID;                          /*ModbusID*/
    u8 Func;                        /*功能号*/
    u16 StartAddress;               /*起始地址*/
    u16 RegNumber;                  /*寄存器数量*/
    u8 *wDataAddress;               /*写入寄存器数据地址*/
}ModbusAnalysisData_t;

typedef enum _ModbusErrorCode
{
    ModbusErrorCode_Success         = 0x00,
    ModbusErrorCode_IllegalFunction = 0x01,
    ModbusErrorCode_IllegalAddr     = 0x02,
    ModbusErrorCode_IllegalData     = 0x03,
    ModbusErrorCode_DeviceBusy      = 0x06
}ModbusErrorCode_e;

typedef struct proto_Modbus_t proto_Modbus_t;
struct proto_Modbus_t
{
    u8 ID;
    u16 (*DataRead)(u16);                       /*Modbus读数据*/
    ModbusErrorCode_e (*DataWrite)(u16,u16);    /*Modbus写数据*/
    void (*Init)(void);                         /*初始化函数*/
    void (*Task)(void);                         /*任务函数*/
    void (*DataAnalysis)(u8 *,u16,void *);             /*数据解析*/
};

u16 ModbusCrc16(u8 *pData, u16 Len);
u16 FloatTOu16(float FloatData,unsigned char HorL);
u16 u32TOu16(u32 u32Data,unsigned char HorL);
u32 u8TOu32(u8 *p_u8Data,unsigned char u8Endian);
u16 u8TOu16(u8 *p_u8Data,unsigned char u8Endian);

void u32TOu8(u32 u32Data,u8 *pData,u8 Endian);
void u16TOu8(u16 u16Data,u8 *pData,u8 Endian);

u32 u32_EndianConv(u32 Data);
u16 u16_EndianConv(u16 Data);

void ModbusReadData(u8 Id,u16 Addr,u16 Num,void (*UsartSendBuffer)(u8 *,u16 ));
void ModbusWriteMultipleData(u8 ID,u16 Addr,u16 Num,u16 *Data,void (*UsartSendBuffer)(u8 *,u16 ));
void ModbusyWriteOnlData(u8 ID,u16 Addr,u16 Value,void (*UsartSendBuffer)(u8 *,u16 ));
u8 ModbusAnalysis(ModbusAnalysisData_t *pModbus, u8 *pData, u16 len);

#endif