T536_DTU/app_public/gps/gps_uart.c

/******************************************************************************
版权所有：	
文件名称：	gprs.c
文件版本：	01.01
创建作者：	
创建日期：	2012-8-17
功能说明：	GRS模块
其它说明：
修改记录：
*/

/*------------------------------- 头文件 --------------------------------------
*/
#include "head.h"
#include "gps_uart.h"
#include "my_rtc.h"
#include "gps.h"
#include "bspconfig.h"

#if defined(ADD_ATGM366_GPS_FUN) || defined(DEV_GPS_ATGM366) || defined(DEV_GPS_ATGM332D)

#define BYTE2LONG(p)((long)(((p)[0]<<24)+((p)[1]<<16)+((p)[2]<<8)+(p)[3]))
/*------------------------------ 全局变量 -------------------------------------
*/

GpsNmeaRmcDataType GpsNmeaRmcData;
u8 SendBuf[GPS_LINE_LEN/2];

const GpsNmeaDataType GpsNmeaDataTbl[]=
{
    {  FALSE,     "GGA" },
    {  FALSE,     "GLL" },
    {  FALSE,     "GSA" },
    {  FALSE,     "GSV" },
    {   TRUE,     "RMC" },
    {  FALSE,     "VTG" },
    {  FALSE,     "ZDA" },
    {  FALSE,     "TXT" },
    {  FALSE,     "ANT" },
    {  FALSE,     "DHV" },
    {  FALSE,     "GST" },

};

const char GpsNmeaCmdData[][50]=
{
    {"$PCAS01,0*1C\r\n"},
    {"$PCAS01,1*1D\r\n"},
    {"$PCAS01,2*1E\r\n"},
    {"$PCAS01,3*1F\r\n"},
    {"$PCAS01,4*18\r\n"},   //57600
    {"$PCAS01,5*19\r\n"},
//    {"$PCAS03,0,0,0,0,1,0,0,0,0,0,,,0,0*03\r\n"},   //配置只上发RMC指令
	{"$PCAS03,0,0,0,4,1,0,0,0*07\r\n"},   //配置发RMC、GSV指令

    {"$PCAS04,3*1A\r\n"},                 //配置选择北斗和GPS导航系统
    {"$PCAS02,1000*2E\r\n"},                //更新频率为1HZ
    {"$PCAS10,3*1F\r\n"},                 //恢复出厂设置
    {"$PCAS04,2*1B\r\n"},                 //单独选择北斗
    {"$PCAS04,1*18\r\n"},                 //单独选择GPS
};

const int GpsCommBuadrateTbl[]=
{
    4800, 9600, 19200, 38400, 57600, 115200
};


/*------------------------------ 外部函数 -------------------------------------
外部函数供其它实体文件引用，必须仔细检查传入参数的合法性.
*/
extern int rtc_to_timespec(struct rtc_time_t * p_rtc, struct timespec * p_ts);





GPS_SYNC_DELAY gps_sync;
extern unsigned int g_keep_alive_gps;


/******************************************************************************
函数名称：
函数版本：  01.01
创建作者：
创建日期：
函数说明：
参数说明：
返回值：
    0：     成功
    其它：  失败
修改记录：
*/
extern struct timespec g_sys_time;

char gps_crc(const char* p, u8 length)  
{
	char crc = p[0];
	u8 i;

	for(i=1; i<length;i++)
	{
		crc ^= p[i];
	}

	return crc;
}

void GPSCommInit(GPS_COMM* p,u8 chnl)                                    //初始化
{
    memset(p,0,sizeof(GPS_COMM));
    p->type=IEC_MODBUS_M;
    p->chnl=chnl;
    p->bData=false;

    //p->arrSendBuf=&g_tRsComm[chnl].sendbuf[0];

    ResetUartGPSLink(p);
    // rt_printf("gps com init\r\n");   //TODO ygl -

}

void ResetUartGPSLink(GPS_COMM* p)                               //重置
{
    p->cTypeCounter=GPS_FRAME_HEAD;
    p->cRecvCnt=0;
}

void GPS_Recv(GPS_COMM* p,BYTE byRevData)
{
    static unsigned char RecvCounter;
	
    if(p->bData)
    {
        p->cTypeCounter=GPS_FRAME_HEAD;
        return;
    }
    p->arrRecvBuf[p->cRecvCnt++] = byRevData;  //接收数据
    switch(p->cTypeCounter)
    {
        case GPS_FRAME_HEAD:   //
            if(byRevData=='$') //开始符号
            {
   //             rt_printf("GPS_FRAME_HEAD\r\n");
                p->cTypeCounter++;
            }
            else
            {
                ResetUartGPSLink(p);
            }
            break;
        case GPS_FRAME_DATA:
            if(byRevData=='*') //数据结束段
            {
   //             rt_printf("GPS_FRAME_DATA\r\n");
                RecvCounter=0;
                p->cTypeCounter=GPS_FRAME_TAIL;
                //p->nTypeCounter=GPS_FRAME_TAIL;
            }
            else if(p->cRecvCnt>GPS_UART_MAX_LEN)  //数据异常保护后续需要修改
                //else if(p->nRecvCnt>GPS_UART_MAX_LEN)  //数据异常保护后续需要修改
            {
                ResetUartGPSLink(p);
            }
            break;
        case GPS_FRAME_TAIL:
            if(byRevData=='\n')  // 回车符
            {
                p->cTypeCounter=GPS_FRAME_HEAD;
                //p->nTypeCounter=GPS_FRAME_HEAD;
                p->bData=true;
			//	rt_printf("GPS_FRAME_TAIL\r\n");
			//	rt_printf("data: %s\r\n", p->arrRecvBuf);
				
            }
            else if(++RecvCounter>=4)
            {
                ResetUartGPSLink(p);
            }
            break;
        default:
            ResetUartGPSLink(p);
            break;
    }

}

void GPS_Timer(void)
{
	u8 i;
	
    // TODO 待处理秒脉冲 by ewen
    // if(g_clock_mode != CLOCK_MODE_GPS_SECOND)
    // {
	// 	if(soe_check(EV_GPS_ADJUST_TIME)==true)
	// 	{
	// 		soe_record_ev(EV_GPS_ADJUST_TIME,0, 0,0,0 ); 
	// 	}
        return;
    // }

	if(ustimer_delay_origin2(&GpsNmeaRmcData.data_vaild_time, 60*1*USTIMER_SEC));//60*tRunPara.GPS_switch_delay*USTIMER_SEC))
	{
		GpsNmeaRmcData.data_vaild = 0;
		// TODO by ewen
		// if(soe_check(EV_GPS_ADJUST_TIME)==true)
		// {
		// 	soe_record_ev(EV_GPS_ADJUST_TIME,0, 0,0,0 );
		// }
	}
	if(ustimer_delay_origin2(&GpsNmeaRmcData.gsv_time, 30*USTIMER_SEC))
	{
		GpsNmeaRmcData.bd_sv_num = 0;
		GpsNmeaRmcData.gp_sv_num = 0;
	}
	
	for(i=0; i<GPS_NUM_MAX; i++)
	{
		if(ustimer_delay_origin2(&GpsNmeaRmcData.bd_online_time[i], 180*USTIMER_SEC))
		{
			GpsNmeaRmcData.bd_gsv[i].valid = 0;
		}
		if(ustimer_delay_origin2(&GpsNmeaRmcData.gp_online_time[i], 180*USTIMER_SEC))
		{
			GpsNmeaRmcData.gp_gsv[i].valid = 0;
		}
	}

	if(GpsNmeaRmcData.data_vaild == 0)
	{
	#ifdef	GPS_ALIVE_SOE        
		if(soe_check(EV_GPS_ALIVE)==true)			
		{
			soe_record_ev(EV_GPS_ALIVE,0, 0,0,0 );                                          
		}    
	#endif
		GpsNmeaRmcData.bd_sv_num=0;
		GpsNmeaRmcData.gp_sv_num=0;
	}
#ifdef GPS_NUM_SHOW
	g_sw_pub.ac_in[PUB_AC_IN_GPS_NUM] = (qs16)((GpsNmeaRmcData.bd_sv_num + GpsNmeaRmcData.gp_sv_num)*Q16_BASE);
#elif defined BD_GPS_NUM
    g_sw_pub.ac_in[PUB_AC_IN_BD_NUM] = (qs16)(GpsNmeaRmcData.bd_sv_num*Q16_BASE);
    g_sw_pub.ac_in[PUB_AC_IN_GPS_NUM] = (qs16)(GpsNmeaRmcData.gp_sv_num*Q16_BASE);
#endif
}


void GPS_Comm_App(GPS_COMM* p)
{
	
#ifdef ADD_PLUSE_OUTPUT
    GenerateSecdPluse();
#endif

	GPS_Timer();
//    if(!g_clock_mode_gps)
//        return;

    GpsModuleFunInit(p);
    if(GpsNmeaRmcData.DataValidFlag=='S')  //soeê??t
    {
        struct  rtc_time_t rtc;
        // TODO by ewen
        //soe_record_opt(EV_GPS_ADJUST_TIME,GpsNmeaRmcData.MsOffset);	

		// if(soe_check(EV_GPS_ADJUST_TIME)==false)
		// {
		// 	soe_record_ev(EV_GPS_ADJUST_TIME,1, 0,0,0 );
		// }
		 
		GpsNmeaRmcData.gps_soe_time = ustimer_get_origin();

        timespec_to_rtc(GpsNmeaRmcData.ts,&rtc,1);
        if(rtc_time_write(&rtc) != 0)     //
        {
            rt_printf("gps_fun:rtc_time_write err.\r\n");
            return;
        }
        GpsNmeaRmcData.DataValidFlag='0';
     //   rt_printf_time("gps adjust,time=%d\r\n",GpsNmeaRmcData.MsOffset);
    }

    if(p->bData)   //TODO: add vaild data control
    {
        GpsRecvDataFrameHandler(p);
        p->bData=false;
        p->cRecvCnt=0;
    }
}



int _pow10(unsigned char num)
{
    int val=1;
    while(num--)
        val*=10;

    return val;
}


unsigned char* GetParamDataValue(unsigned char* pos,float* data)  //, ,
{
    unsigned char count,IntNum=0,DecNum=0,len,num;
    unsigned char *p=pos,*p1;
    int value;

    p++;   //jump the first signed
    //len=(unsigned char*)strstr(p,",")-p;
    len=(unsigned char*)strchr(p,',')-p;
    if((len<=0)||len>15)
    {
        *data=0;   //valid data
        return pos+len+1;
    }

    p1=p;
    for(count=0; count<len; count++,p1++)
    {
        if(*p1=='.')   //取到小数点位置
        {
            DecNum=len-IntNum-1;
            break;
        }
        IntNum++;
    }

    //rt_printf("len=%d,InterNum=%d,DecNum=%d,x=%d\r\n",len,IntNum,DecNum,pow10(IntNum));


    value=0;
    while(IntNum)   //get the part of Int
    {
        num=*p++-0x30;   //必须为0x30-0x39
        value+=num*_pow10(IntNum-1);
        IntNum--;
    };
    *data=(float)value;
    if(DecNum)
    {
        p++;   //point
        count=DecNum;
        value=0;
        while(count)   //get the part of dec
        {
            num=*p++-0x30;   //必须为0x30-0x39
            value+=num*_pow10(count-1);
            count--;
        };
        *data+=(float)value/_pow10(DecNum);
    }



    return pos+len+1;
}

//取字符
unsigned char* GetParamDataChar(unsigned char* pos,unsigned char* data, int max_len)
{
    unsigned char len;
    unsigned char *p=pos;
    //int value;

    p++;   //jump the first signed
    //len=(unsigned char*)strstr(p,",")-p;
    len=(unsigned char*)strchr(p,',')-p;
    //rt_printf("len=%d\r\n",len);
    if((len<=0)||len>max_len)
    {
        *data=0;   //valid data
        return pos+len+1;
    }
    memcpy(data,p,len);
    return pos+len+1;
}

char* gps_char_data_get(char* pos, char end, int* data)
{
    unsigned char len;

    len=strchr(pos,end)-pos;
    if((len<=0)||len>15)
    {
        *data=-1;   //valid data
        return pos+len+1;
    }
  	*data=atoi(pos);
	
    return pos+len+1;
}



int CheckDataFrameVaild(unsigned char *pos)
{
    unsigned char *p=pos,tmp;
    volatile unsigned char AddValue=0;

    //if(strstr(p,"*")==NULL)
    if(strchr(p,'*')==NULL)
        return -1;
    if(*p++!='$')
        return -1;

    while(*p!='*')
        AddValue^=*p++;

    p++;  //*
    tmp=(*p++-0x30)<<4;
    tmp|=(*p-0x30)<<0;


    rt_printf("tmp=0x%02X,AddValue=0x%02X\r\n",tmp,AddValue);

    if(tmp!=AddValue)
    {
        rt_printf("tmp=%s\r\n",pos);
        return 0;
    }


    return 1;

}


void UtcTimeToSysTime(struct rtc_time_t *  rtc,GpsNmeaRmcDataType* utc,u8 opt)
{


    char* p=&utc->Date[0];

    rtc->day=(*p-0x30)*10+*(p+1)-0x30;
    p+=2;
    rtc->month=(*p-0x30)*10+*(p+1)-0x30;
    p+=2;
    rtc->year=(*p-0x30)*10+*(p+1)-0x30;
    p+=2;


    p=&utc->UtcTime[0];
    rtc->hour=(*p-0x30)*10+*(p+1)-0x30;
    p+=2;
    rtc->min=(*p-0x30)*10+*(p+1)-0x30;
    p+=2;

    if(opt==1)
        rtc->ms=((*p-0x30)*10+*(p+1)-0x30)*1000+(*(p+3)-0x30)*100+(*(p+4)-0x30)*10+*(p+5)-0x30;
    else   //取S
        rtc->ms=((*p-0x30)*10+*(p+1)-0x30)*1000;
    //rt_printf("year=%d,month=%d,day=%d,hour=%d,min=%d,ms=%d\r\n",rtc->year,rtc->month,rtc->day,rtc->hour,rtc->min,rtc->ms);

}

void gps_pluse_clear(void)
{
	GpsNmeaRmcData.pluse_count = 0;
}


int GpsAdjustTimeFun(struct  rtc_time_t* psrtc)   //本函数只能被捕获中断服务函数调用
{
 //   static u8 counter=0;
    struct timespec ts;
    int res=FALSE;
    u64 MsOffset;
	static u8 power_on = 1;

#ifdef CN_AREA_GUOWANG_FBC
	GpsNmeaRmcData.data_vaild_time = ustimer_get_origin();
	GpsNmeaRmcData.data_vaild = 1;
	if(GpsNmeaRmcData.slave_vaild == 0)
		return res;
#endif

    if(++GpsNmeaRmcData.pluse_count<=2)//tRunPara.GPS_sync_time)    //2s判断一下校准时间 //TODO EWEN
    {
//        GpsNmeaRmcData.DataValidFlag='0';
        return res;
    }
	GpsNmeaRmcData.wait_sync = 0;

//    counter=0;
#ifdef CN_AREA_GUOWANG_FBC
	GpsNmeaRmcData.slave_vaild = 0;
#else
    if(GpsNmeaRmcData.DataValidFlag!='Y' )//|| !tRunPara.GPS_sync_enable)   //TODO EWEN
        return res;
#endif
	
	 GpsNmeaRmcData.DataValidFlag='0';

    //rtc_to_timespec(psrtc,&ts);
#ifdef CN_AREA_GUOWANG_FBC    
	GpsNmeaRmcData.ts.tv_sec+= tRunPara.GPS_sync_time + 1; 
    GpsNmeaRmcData.ts.tv_nsec=20*1000 + 1000*1000;  //补偿20us + 1ms
#else
	GpsNmeaRmcData.ts.tv_sec+= 1;//tRunPara.GPS_sync_time + 1; //TODO EWEN
	GpsNmeaRmcData.ts.tv_nsec=20*1000;	//补偿20us
#ifdef KP_GPS_TEST
	GpsNmeaRmcData.ts.tv_sec+=4; 
#endif
#endif
  
    gps_get_time(&ts);      //当前系统的精准时间带ms的 

    if(GpsNmeaRmcData.ts.tv_sec<=ts.tv_sec)           //系统时间超前
        MsOffset=(ts.tv_sec-GpsNmeaRmcData.ts.tv_sec)*1000+ts.tv_nsec/1000000;
    else                             //系统时间滞后
        MsOffset=(GpsNmeaRmcData.ts.tv_sec-ts.tv_sec)*1000-ts.tv_nsec/1000000;

    if(MsOffset>=5 || power_on)  //5ms
    {
        timespec_to_rtc(GpsNmeaRmcData.ts,psrtc,1);   //D￡ê±
		sys_time_set(psrtc);
        if(MsOffset>=1000 || power_on)  //1Sò?é??ó2?????SOE
        {
        	power_on = 0;
            GpsNmeaRmcData.DataValidFlag='S';    //SOE±ê??
            GpsNmeaRmcData.MsOffset=MsOffset;
        }
        else
            GpsNmeaRmcData.DataValidFlag='0';
      //  rt_printf("set time=%d\r\n",MsOffset);   //校准
        res=TRUE;
    }
    else
        GpsNmeaRmcData.DataValidFlag='0';

    return res;
}

float gps_angle_calc(float value)
{
	float tmp_d,tmp_m,tmp_dot;
	u32 tmp;

	tmp   = (u32)value;
	tmp_d = value;
	tmp_m = (float)(tmp_d - tmp);
	tmp_dot = tmp_m*100.0f/60.0f;
	tmp = value;
	return (float)(tmp+tmp_dot);
}

void gps_dms_calc(float value, u32 *d, u32 *m, float *s)
{
	u32 tmp1,tmp2;

	tmp1 = (u32)value;
	tmp2 = (u32)value/100;
	
	*d  = tmp2;
	*m  = (u32)((value/100.0f - tmp2)*100.0f);
	*s  = (float)(value - tmp1)*60.0f;
}


//GPS接收数据解析
int GpsRecvDataFrameHandler(GPS_COMM* data)
{
    static unsigned char LocalUtcTime[11];
    unsigned char* p=&data->arrRecvBuf[0];
	unsigned char* p1=&data->arrRecvBuf[0];
	u8 msg_no, valid_flag;


	if((ustimer_delay_origin2(&data->recv_wait_time, 3*USTIMER_SEC) <= 0) && !data->recv_handle)
	{
		return FALSE;
	}
	data->recv_handle = 1;

    if(data->GpsModuleRunStep==GPS_MODULE_INIT_STEP)        //???????????????????????????
        data->GpsModuleRunStep=GPS_MODULE_NORMAL_RUN_STEP;
    else if(data->GpsModuleRunStep==GPS_MODULE_BAUD_CHECK_STEP)  //查找到合适的波特率
        data->GpsModuleRunStep=GPS_MODULE_BAUD_SET_STEP;

    //if(!CheckDataFrameVaild(p))
    //    return;

    // $GNRMC,051033.000,A,2222.12622,N,11329.24936,E,0.00,0.00,050825,,,A*79
    if(strstr(p1,"RMC")!=NULL)
    {
   
        p=strstr(p1,"RMC");
        memcpy(&GpsNmeaRmcData.SingleType,p1+1,2);  //记录是BD还是GN,即北斗还是GPS
		GpsNmeaRmcData.SingleType[p-p1] = 0;

        p+=3;
        p=GetParamDataChar(p,&GpsNmeaRmcData.UtcTime[0],sizeof(GpsNmeaRmcData.UtcTime));
        p=GetParamDataChar(p,&valid_flag,sizeof(valid_flag));    //数据有效标志
        if(valid_flag!='A')
        {	
		#ifdef GPS_NUM_SHOW
			GpsNmeaRmcData.bd_sv_num=0;
			GpsNmeaRmcData.gp_sv_num=0;
			g_sw_pub.ac_in[PUB_AC_IN_GPS_NUM] = (qs16)((GpsNmeaRmcData.bd_sv_num + GpsNmeaRmcData.gp_sv_num)*Q16_BASE);
		#elif defined BD_GPS_NUM
			GpsNmeaRmcData.bd_sv_num=0;
			GpsNmeaRmcData.gp_sv_num=0;
		    g_sw_pub.ac_in[PUB_AC_IN_BD_NUM] = (qs16)(GpsNmeaRmcData.bd_sv_num*Q16_BASE);
		    g_sw_pub.ac_in[PUB_AC_IN_GPS_NUM] = (qs16)(GpsNmeaRmcData.gp_sv_num*Q16_BASE);
		#endif
		
            return FALSE;
        }

		GpsNmeaRmcData.data_vaild_time = ustimer_get_origin();
		GpsNmeaRmcData.data_vaild      = 1;
#ifdef	GPS_ALIVE_SOE	
		if(soe_check(EV_GPS_ALIVE)==false)
		{
			soe_record_ev(EV_GPS_ALIVE, 1, 0, 0, 0 );
		}
#endif
		if(GpsNmeaRmcData.wait_sync)
		{
			// return FALSE;//临时屏蔽 by ewen
		} 				

		GpsNmeaRmcData.DataValidFlag = valid_flag;
        p=GetParamDataValue(p,&GpsNmeaRmcData.Latitude);    //纬度

        p=GetParamDataChar(p,&GpsNmeaRmcData.LatitudeDir,sizeof(GpsNmeaRmcData.LatitudeDir));    //纬度方位

        p=GetParamDataValue(p,&GpsNmeaRmcData.Longtitude);  //经度

        p=GetParamDataChar(p,&GpsNmeaRmcData.LongtitudeDir,sizeof(GpsNmeaRmcData.LongtitudeDir));      //经度方位

        p=GetParamDataValue(p,&GpsNmeaRmcData.Spd); //对地速度

        p=GetParamDataValue(p,&GpsNmeaRmcData.cog); //对地真航向

        p=GetParamDataChar(p,&GpsNmeaRmcData.Date[0],sizeof(GpsNmeaRmcData.Date)); //日期

		gps_pluse_clear();
		GpsNmeaRmcData.wait_sync = 1;
        memset(&GpsNmeaRmcData.UtcTime[8],'0',3);  //去除毫秒 GPS模块机制
    //    if(memcmp(GpsNmeaRmcData.UtcTime,LocalUtcTime,sizeof(GpsNmeaRmcData.UtcTime)))  //若gps第一次获取到时间或者1s内第一次获取到时间则有效或者是GPS断线后第一次获取的时间
        {
            struct  rtc_time_t rtc;
            UtcTimeToSysTime(&rtc,&GpsNmeaRmcData,0);
            rtc_to_timespec(&rtc,&GpsNmeaRmcData.ts);
            GpsNmeaRmcData.ts.tv_sec+=8*60*60;  //UTC->BEIJING
            GpsNmeaRmcData.DataValidFlag='Y';
            //rt_printf("gene_flag=%d\r\n",GpsNmeaRmcData.DataValidFlag);
            memcpy(GpsNmeaRmcData.UtcTime,LocalUtcTime,sizeof(GpsNmeaRmcData.UtcTime));
			//rt_printf("recv gps uart data!");
        }
		gps_dms_calc(GpsNmeaRmcData.Longtitude, &GpsNmeaRmcData.Longtitude_dd, &GpsNmeaRmcData.Longtitude_mm, &GpsNmeaRmcData.Longtitude_ss);
		gps_dms_calc(GpsNmeaRmcData.Latitude, &GpsNmeaRmcData.Latitude_dd, &GpsNmeaRmcData.Latitude_mm, &GpsNmeaRmcData.Latitude_ss);

		#ifndef GPS_JWD_SPLIT
			g_sw_pub.ac_in[PUB_AC_GPS_LONGITUDE] = (qs16)(gps_angle_calc(GpsNmeaRmcData.Longtitude /100.0f)*Q16_BASE);
			g_sw_pub.ac_in[PUB_AC_GPS_LATITUDE]  = (qs16)(gps_angle_calc(GpsNmeaRmcData.Latitude /100.0f)*Q16_BASE);
		#else
			g_sw_pub.ac_in[PUB_AC_GPS_LONGITUDE_D] =GpsNmeaRmcData.Longtitude_dd*Q16_BASE;
			g_sw_pub.ac_in[PUB_AC_GPS_LONGITUDE_M] =GpsNmeaRmcData.Longtitude_mm*Q16_BASE;
			g_sw_pub.ac_in[PUB_AC_GPS_LONGITUDE_S] =GpsNmeaRmcData.Longtitude_ss*Q16_BASE;
			g_sw_pub.ac_in[PUB_AC_GPS_LATITUDE_D] =GpsNmeaRmcData.Latitude_dd*Q16_BASE;
			g_sw_pub.ac_in[PUB_AC_GPS_LATITUDE_M] =GpsNmeaRmcData.Latitude_mm*Q16_BASE;
			g_sw_pub.ac_in[PUB_AC_GPS_LATITUDE_S] =GpsNmeaRmcData.Latitude_ss*Q16_BASE;
		#endif
    }
	else if(strstr(p1,"GSV")!=NULL)
	{
		if(strstr(p1,"BD")!=NULL)
		{
			u8 i;
			
			p = p1 + 7;
			p = gps_char_data_get(p, ',', &GpsNmeaRmcData.bd_msg_num);
			p = gps_char_data_get(p, ',', &GpsNmeaRmcData.bd_msg_no);
			p = gps_char_data_get(p, ',', &GpsNmeaRmcData.bd_sv_num);
            if(strstr(GpsNmeaRmcData.SingleType,"BD")!=NULL)
            {
                g_sw_pub.ac_in[PUB_AC_GPS_NUM_SV] = (qs16)(GpsNmeaRmcData.bd_sv_num*Q16_BASE);
            }
			if(GpsNmeaRmcData.bd_sv_num > GPS_NUM_MAX)
				return FALSE;

			GpsNmeaRmcData.gsv_time = ustimer_get_origin();

			msg_no = GpsNmeaRmcData.bd_msg_no-1;
			if(GpsNmeaRmcData.bd_msg_no*4 < GPS_NUM_MAX)
			{
				for(i=0; i<4; i++)
				{
					p = gps_char_data_get(p, ',', &GpsNmeaRmcData.bd_gsv[msg_no*4+i].id);
					p = gps_char_data_get(p, ',', &GpsNmeaRmcData.bd_gsv[msg_no*4+i].ele);
					p = gps_char_data_get(p, ',', &GpsNmeaRmcData.bd_gsv[msg_no*4+i].az);
					p = gps_char_data_get(p, ',', &GpsNmeaRmcData.bd_gsv[msg_no*4+i].cn0);
					GpsNmeaRmcData.bd_gsv[msg_no*4+i].valid = 1;
					GpsNmeaRmcData.bd_online_time[msg_no*4+i] = ustimer_get_origin();
				}
			}
		}
		else if(strstr(p1,"GP")!=NULL)
		{
			u8 i;
			
			p = p1 + 7;
			p = gps_char_data_get(p, ',', &GpsNmeaRmcData.gp_msg_num);
			p = gps_char_data_get(p, ',', &GpsNmeaRmcData.gp_msg_no);
			p = gps_char_data_get(p, ',', &GpsNmeaRmcData.gp_sv_num);
			
		//	rt_printf("GPS卫星：%d台\r\n", GpsNmeaRmcData.gp_sv_num);
			if(GpsNmeaRmcData.gp_sv_num > GPS_NUM_MAX)
				return FALSE;
            if(strstr(GpsNmeaRmcData.SingleType,"GN")!=NULL)
            {
                g_sw_pub.ac_in[PUB_AC_GPS_NUM_SV] = (qs16)(GpsNmeaRmcData.gp_sv_num*Q16_BASE);
            }

			GpsNmeaRmcData.gsv_time = ustimer_get_origin();
			msg_no = GpsNmeaRmcData.gp_msg_no-1;
			if(GpsNmeaRmcData.gp_msg_no*4 < GPS_NUM_MAX)
			{
				for(i=0; i<4; i++)
				{
					p = gps_char_data_get(p, ',', &GpsNmeaRmcData.gp_gsv[msg_no*4+i].id);
					p = gps_char_data_get(p, ',', &GpsNmeaRmcData.gp_gsv[msg_no*4+i].ele);
					p = gps_char_data_get(p, ',', &GpsNmeaRmcData.gp_gsv[msg_no*4+i].az);
					p = gps_char_data_get(p, ',', &GpsNmeaRmcData.gp_gsv[msg_no*4+i].cn0);
					GpsNmeaRmcData.gp_gsv[msg_no*4+i].valid = 1;
					GpsNmeaRmcData.gp_online_time[msg_no*4+i] = ustimer_get_origin();
				}
			}
		}
	}
    else
    {
#if 0    
        if((data->GpsModuleRunStep==GPS_MODULE_NORMAL_RUN_STEP)&&(strstr(p,"TXT")==NULL))  //正常运行后若发现收到其他数据则下发配置指令
#else
		if((data->GpsModuleRunStep==GPS_MODULE_NORMAL_RUN_STEP)&&(strstr(p,"GSV")==NULL)) 
#endif
        {
            data->GpsModuleRunStep=GPS_MODULE_NEMA_SEL_STEP;   //若配置不成功可循环配置
        }    
    }



    return TRUE;
}

void GpsSwitchBaudrateFun(GPS_COMM* data, GpsCtrlCmdEnumType GpsCtrlCmd)
{

    u8 chnl=data->chnl;
    GpsModuleRunStepEnum LocalGpsModuleRunStep=data->GpsModuleRunStep;

    memset(&g_tRsComm[chnl],0,sizeof(g_tRsComm[chnl]));
    g_tRsComm[chnl].ptBuf=(BYTE*)&g_tRsIEC[chnl];

    GPSCommInit((GPS_COMM *)g_tRsComm[chnl].ptBuf,chnl);

    //uart_open(UART_CHANNEL[chnl],tRunPara.tUartPara[i].wBaud,tRunPara.tUartPara[i].wParity);
#if defined(BSP_DTU3) || defined(BSP_DTU2) || defined(BSP_DTU4)	
	uart_open(UART_CHANNEL[chnl],GpsCommBuadrateTbl[GpsCtrlCmd],PARITY_NONE1);
#else
    uart_open(UART_CHANNEL[chnl],GpsCommBuadrateTbl[GpsCtrlCmd],PARITY_NONE_1);  //????′??ú
#endif    
	RS_Ena_Init(chnl);
    RS_Recv_Enable(chnl);
    data->GpsModuleRunStep=LocalGpsModuleRunStep;   //串口初始化 存储的数据都被清0
    //rt_printf("Set baud:%d\r\n",GpsCommBuadrateTbl[GpsCtrlCmd]);


}

void GpsModuleFunInit(GPS_COMM* data)
{
    static GpsCtrlCmdEnumType GpsSwitchBaudrate;
    static uint32_t us0=0;
    u8 count,chnl=data->chnl,i;

    if(us0==0)
        us0=ustimer_get_origin();
    if(ustimer_delay_origin2(&us0,USTIMER_SEC*2)>0)
    {
   //     rt_printf("Step:%d\r\n",data->GpsModuleRunStep);
        switch(data->GpsModuleRunStep)
        {
            case GPS_MODULE_INIT_STEP:
                data->GpsModuleRunStep++;
                GpsSwitchBaudrate=GPS_SET_BUADRATE1_CMD;
                break;
            case GPS_MODULE_BAUD_CHECK_STEP:
                GpsSwitchBaudrateFun(data,GpsSwitchBaudrate);
                if(++GpsSwitchBaudrate>GPS_SET_BUADRATE5_CMD)
                    GpsSwitchBaudrate=GPS_SET_BUADRATE0_CMD;
                //data->GpsModuleRunStep=GPS_MODULE_BAUD_SET_STEP;
                break;
            case GPS_MODULE_BAUD_SET_STEP:
                for(count=0; count<sizeof(GpsCommBuadrateTbl)/4; count++)
                {
                    if(tRunPara.tUartPara[data->chnl].wBaud==GpsCommBuadrateTbl[count])
                        break;
                }
                if(count==sizeof(GpsCommBuadrateTbl)/4)
                    ;  //ERROR
                else
                {
                    GPS_Comm_Send(data,(char*)GpsNmeaCmdData[count],sizeof(GpsNmeaCmdData[count])); //根据定值配置模块的波特率
                }
                data->GpsModuleRunStep++;
                break;
            case GPS_MODULE_BAUD_FINISH_STEP:  //找到合适的波特率
           #if 1 
                memset(&g_tRsComm[chnl],0,sizeof(g_tRsComm[chnl]));
                g_tRsComm[chnl].ptBuf=(BYTE*)&g_tRsIEC[chnl];
                GPSCommInit((GPS_COMM *)g_tRsComm[chnl].ptBuf,chnl);   //运行步骤恢复初始状态
                
                uart_open(UART_CHANNEL[chnl],tRunPara.tUartPara[chnl].wBaud,tRunPara.tUartPara[chnl].wParity);
                RS_Ena_Init(chnl);
                RS_Recv_Enable(chnl);
			#endif
				GPS_Comm_Send(data,(char*)GpsNmeaCmdData[GPS_SEL_UPLOAD_RMC_CMD],sizeof(GpsNmeaCmdData[GPS_SEL_UPLOAD_RMC_CMD]));
			//	rt_printf("GPS_MODULE_BAUD_FINISH_STEP.\r\n");
				data->GpsModuleRunStep = GPS_MODULE_UPDATE_FREQ_STEP;//GPS_MODULE_NORMAL_RUN_STEP;
                break;
            case GPS_MODULE_NEMA_SEL_STEP:
			//	rt_printf("GPS_MODULE_NEMA_SEL_STEP = %d.\r\n", sizeof(GpsNmeaCmdData[GPS_SEL_UPLOAD_RMC_CMD]));
                GPS_Comm_Send(data,(char*)GpsNmeaCmdData[GPS_SEL_UPLOAD_RMC_CMD],sizeof(GpsNmeaCmdData[GPS_SEL_UPLOAD_RMC_CMD]));
                data->GpsModuleRunStep++;
                break;
            case GPS_MODULE_NAVI_SYS_STEP:
			//	rt_printf("GPS_MODULE_NAVI_SYS_STEP.\r\n");
                GPS_Comm_Send(data,(char*)GpsNmeaCmdData[GPS_SEL_NAVI_SYS_CMD],sizeof(GpsNmeaCmdData[GPS_SEL_NAVI_SYS_CMD]));
                data->GpsModuleRunStep=GPS_MODULE_NORMAL_RUN_STEP;
                break;
            case GPS_MODULE_UPDATE_FREQ_STEP:
			//	rt_printf("GPS_MODULE_UPDATE_FREQ_STEP.\r\n");
                GPS_Comm_Send(data,(char*)GpsNmeaCmdData[GPS_SEL_UPDATE_FREQ_CMD],sizeof(GpsNmeaCmdData[GPS_SEL_UPDATE_FREQ_CMD]));
                data->GpsModuleRunStep++;
                break;
			case GPS_MODULE_SYS_STEP:
				if(tRunPara.GPS_Mode == 1) //北斗
				{
					rt_printf("选择北斗系统.\r\n");
                	GPS_Comm_Send(data,(char*)GpsNmeaCmdData[GPS_SEL_BD_SYS_CMD],sizeof(GpsNmeaCmdData[GPS_SEL_BD_SYS_CMD]));
				}
				else if(tRunPara.GPS_Mode == 2) //GPS
				{
					rt_printf("选择GPS系统.\r\n");
					GPS_Comm_Send(data,(char*)GpsNmeaCmdData[GPS_SEL_GPS_SYS_CMD],sizeof(GpsNmeaCmdData[GPS_SEL_GPS_SYS_CMD]));
				}
				else
				{
					rt_printf("选择北斗/GPS系统.\r\n");
					GPS_Comm_Send(data,(char*)GpsNmeaCmdData[GPS_SEL_NAVI_SYS_CMD],sizeof(GpsNmeaCmdData[GPS_SEL_NAVI_SYS_CMD]));
				}
                data->GpsModuleRunStep++;		
				GpsNmeaRmcData.bd_sv_num = 0;
				GpsNmeaRmcData.gp_sv_num = 0;
				for(i=0; i<GPS_NUM_MAX; i++)
				{
					GpsNmeaRmcData.bd_gsv[i].valid = 0;
					GpsNmeaRmcData.gp_gsv[i].valid = 0;
				}		
				data->recv_wait_time = ustimer_get_origin();
				data->recv_handle = 0;
				break;
            case GPS_MODULE_NORMAL_RUN_STEP:
            default:
                break;
        }

    }

}

void GpsSendBaudrateCmd(GPS_COMM* p)
{
    u8 i=0;
    char* ptr=&SendBuf[0];

    //memset(ptr,'A',20);
    //ptr+=20;
    //*ptr++='\r';
    //*ptr++='\n';

    ptr[i++]='$';


#if 0   // xxxxxx 20220920 add 此函数没有用上，消除警告
    GPS_Comm_Send(p,ptr-22,22);
#endif

}

void GPS_Comm_Send(GPS_COMM* p,char* data,unsigned char datalen)                 //发送命令
{
    unsigned char *ptr=&g_tRsComm[p->chnl].sendbuf[0];

    *ptr++=datalen;
    //rt_printf("TX:%s\r\n",data);
    memcpy(ptr,data,datalen);
    g_tRsComm[p->chnl].nSendCnt=1;   //第一个字节为长度
    g_tRsComm[p->chnl].bSend=TRUE;

}

#if 0
void GenerateSecdPluse(void)
{
    static uint32_t us0=0;
    static u8 state=0;

    if(us0==0)
        us0=ustimer_get_origin();

    switch(state)
    {
        case 0:
            if(ustimer_delay_origin2(&us0,USTIMER_MS*600)>0)
            {

                GPIO_KOUT0_OFF();
                GPIO_KOUT1_OFF();
                state=1;
                rt_printf("high=%d\r\n",ustimer_get_origin());
            }
            break;
        case 1:
            if(ustimer_delay_origin2(&us0,USTIMER_MS*50)>0)
            {
                GPIO_KOUT0_ON();
                GPIO_KOUT1_ON();
                state=0;
                rt_printf("low=%d\r\n",ustimer_get_origin());
            }
            break;
        default:
            break;
    }


}
#endif

char gps_data_valid_get(void)
{
	return GpsNmeaRmcData.data_vaild;
}

void gps_info_printf(void)
{
	struct  rtc_time_t rtc;
	u16 i;

	rt_printf("GPS串口数据：");
	if(gps_data_valid_get() == 'A' || gps_data_valid_get() == 1)
	{
		rt_printf("\r\n");
		rt_printf(" 系统：%s\r\n", GpsNmeaRmcData.SingleType);
		timespec_to_rtc(GpsNmeaRmcData.ts,&rtc,1);
		rt_printf(" 时间：%04d-%02d-%02d,%02d:%02d:%02d.%03d\r\n", 2000+rtc.year, rtc.month, rtc.day, rtc.hour,
						rtc.min, rtc.ms/1000, rtc.ms%1000);

		rt_printf(" 经度：%f°(%d°%d′%f″)\r\n", gps_angle_calc(GpsNmeaRmcData.Longtitude/100.0f), GpsNmeaRmcData.Longtitude_dd, GpsNmeaRmcData.Longtitude_mm, GpsNmeaRmcData.Longtitude_ss);
		rt_printf(" 纬度：%f°(%d°%d′%f″)\r\n", gps_angle_calc(GpsNmeaRmcData.Latitude/100.0f), GpsNmeaRmcData.Latitude_dd, GpsNmeaRmcData.Latitude_mm, GpsNmeaRmcData.Latitude_ss);
		rt_printf("==============================================\r\n");
		if(GpsNmeaRmcData.bd_sv_num > 0)
		{
			rt_printf("北斗卫星：%d台\r\n", GpsNmeaRmcData.bd_sv_num);
			for(i=0; i<GPS_NUM_MAX; i++)
			{
				if((GpsNmeaRmcData.bd_gsv[i].valid == 1) && (GpsNmeaRmcData.bd_gsv[i].id > 0))
				{
					if(GpsNmeaRmcData.bd_gsv[i].id > 0)
						rt_printf(" [卫星编号:%d ", GpsNmeaRmcData.bd_gsv[i].id);
					else
						rt_printf(" [卫星编号:- ");
					if(GpsNmeaRmcData.bd_gsv[i].ele > 0)
						rt_printf("仰角: %d ", GpsNmeaRmcData.bd_gsv[i].ele);
					else
						rt_printf("仰角: - ");
					if(GpsNmeaRmcData.bd_gsv[i].az > 0)
						rt_printf("方位角: %d ", GpsNmeaRmcData.bd_gsv[i].az);
					else
						rt_printf("方位角: - ");
					if(GpsNmeaRmcData.bd_gsv[i].cn0 > 0)
						rt_printf("载噪比: %d]\r\n", GpsNmeaRmcData.bd_gsv[i].cn0);
					else
						rt_printf("载噪比: -]\r\n");
				}
			}
		}
		else
		{
			rt_printf("北斗卫星：-\r\n");
		}
		rt_printf("==============================================\r\n");
		if(GpsNmeaRmcData.gp_sv_num > 0)
		{
			rt_printf("GPS卫星：%d台\r\n", GpsNmeaRmcData.gp_sv_num);
			for(i=0; i<GPS_NUM_MAX; i++)
			{
				if((GpsNmeaRmcData.gp_gsv[i].valid == 1) && (GpsNmeaRmcData.gp_gsv[i].id > 0))
				{
					if(GpsNmeaRmcData.gp_gsv[i].id > 0)
						rt_printf(" [卫星编号:%d ", GpsNmeaRmcData.gp_gsv[i].id);
					else
						rt_printf(" [卫星编号:- ");
					if(GpsNmeaRmcData.gp_gsv[i].ele > 0)
						rt_printf("仰角: %d ", GpsNmeaRmcData.gp_gsv[i].ele);
					else
						rt_printf("仰角: - ");
					if(GpsNmeaRmcData.gp_gsv[i].az > 0)
						rt_printf("方位角: %d ", GpsNmeaRmcData.gp_gsv[i].az);
					else
						rt_printf("方位角: - ");
					if(GpsNmeaRmcData.gp_gsv[i].cn0 > 0)
						rt_printf("载噪比: %d]\r\n", GpsNmeaRmcData.gp_gsv[i].cn0);
					else
						rt_printf("载噪比: -]\r\n");
				}
			}		
		}
		else
		{
			rt_printf("GPS卫星：-\r\n");
		}
	}
	else if(gps_data_valid_get() == 'V')
	{
		rt_printf("\r\n");
		rt_printf(" 系统：无效\r\n");
		rt_printf(" 时间：无效\r\n");
		rt_printf(" 经度：无效\r\n");
		rt_printf(" 纬度：无效\r\n");
	}
	else 
	{
		rt_printf("无\r\n");
	}	
}


int is_gps_alive(void)
{
	return 0;//tRunPara.GPS_sync_enable && GpsNmeaRmcData.data_vaild;//TODO EWEN
}

//从机时间同步
int gps_slave_sync(struct timespec* ts)
{
	if(tRunPara.bGPS && GpsNmeaRmcData.data_vaild) //打开秒脉冲对时
	{
		gps_pluse_clear();
		GpsNmeaRmcData.ts = *ts;
		GpsNmeaRmcData.slave_vaild = 1;
		return 1;
	}

	return 0;
}

void gps_init_step_set(u8 step)
{
	u8 i;
	
	for(i=0;i<CFG_UART_NUM_MAX;i++)
	{
		// ???????,??
		if(UART_CHANNEL[i]< 0 )
		{
			continue;
		}

    	if(tRunPara.tUartPara[i].wProtocol==PROTOCOL_GPS)  
    	{
			((GPS_COMM *)g_tRsComm[i].ptBuf)->GpsModuleRunStep = step;
    	}
	}	
}


#endif