#ifndef __NODELINK_MASTER_H__
#define __NODELINK_MASTER_H__
#include "NodeLinkCommon.h"
#ifndef NODELINK_DEVICE_NUMBER
#define NODELINK_DEVICE_NUMBER	8		//最多8个从站，
#endif


#define NL_MASTER_EVENT_FOUND_DEVICE	0x01

typedef struct nodelink_device nodelink_device_t; 

typedef struct
{
	void (*on_recv)(nodelink_device_t * device,unsigned char * data);			  //设备输入
	int (*on_send)(nodelink_device_t * device,unsigned char *data);	  //设备控制输出
	void (*on_timeout)(nodelink_device_t * device); //设置定时时间，单位微秒
} nodelink_device_ops;

struct nodelink_device
{
	unsigned char id;			//分配的ID
	unsigned char model;		//设备型号
	unsigned char last_cmd;		//上一次命令，提供外部用的状态
	unsigned char last_status;	//上一次状态，提供外部用的状态
	unsigned char in_index;		//输入数据开始编号
	unsigned char in_count;		//输入计数
	unsigned char out_index;	//输出数据开始编号
	void * user_data;			//外部对象接口
	nodelink_device_ops * ops;	//设备对应处理接口
        unsigned char uniqueid;			//唯一ID
        unsigned short txcount; //发送计数
};

typedef struct nodelink_master nodelink_master_t;
struct nodelink_master
{
	unsigned char bus_status;	//总线状态，0xff为复位状态，会发送复位命令，0x00为初始化状态，会分配ID，0x01为工作状态
	unsigned char dev_count;	//设备计数
	int count;				//总线一些操作的计数
	int step;
	nodelink_device_t device[NODELINK_DEVICE_NUMBER + 1];	//设备缓存
	unsigned char data_in[NATIVE_DATA_BUFFER_SIZE];	//数据输入缓冲
	unsigned char data_out[NATIVE_DATA_BUFFER_SIZE]; //数据输出缓冲
	unsigned char code[16];						     //16字节标识码
	void (*callback)(nodelink_master_t * , char , void *);
};

void nodelink_master_set_callback(nodelink_master_t * master, 
                                  void(*)(nodelink_master_t * , char , void *));
void nodelink_master_set_code(nodelink_master_t * master, unsigned char * code);
void nodelink_master_init(nodelink_master_t * master);
void nodelink_master_reset(nodelink_master_t *master);
void nodelink_master_begin_scan(nodelink_master_t *master);
void nodelink_master_recv(nodelink_master_t *master,
						unsigned char *src,
						int len);
int nodelink_master_send(nodelink_master_t *master,
						unsigned char *dst);

#endif