#include <tcpsupp.h>
#include <ansi_c.h>
#include "DDS_Fox.h"

//#define DDS_IP "192.168.0.3"
//#define TCP_PORT 6665

#define DIV 0			   // divided by 1
#define CMD_SEP ";"
#define BASE_TIME 0.01

#define CMD_CONFIG_REG1 1  // cmd d'acces direct au rergistre 1 de config de la DDS (voir datasheet)
#define CMD_CONFIG_REG2 2  // cmd d'acces direct au rergistre 1 de config de la DDS (voir datasheet)
#define CMD_SINGLE_FREQ_PROF0 7
#define CMD_PROFILE 15	   // cmd de choix du profile de fonctionnement de la DDS (voir datasheet)
#define CMD_ATTENUATION 16
#define CMD_RESET_DDS 17
#define CMD_NOP 20
#define CMD_FREQ_INF 21
#define CMD_FREQ_SUP 22
#define CMD_DF 23
#define CMD_DT 24
#define CMD_START_SWEEP 25
#define CMD_STOP_SWEEP 26
#define CMD_GET_FREQ 28
#define CMD_SWEEP_SIGN 29


/************************* Global variables ***********************************/ 
//static char  Request[255]; 

/************************* My own functions ***********************************/
/*DDSParameter DDSGetParam (int panel, int control) {
	DDSParameter Parameter ;
	
	GetCtrlVal (panel, CONTROL_DDS_IP, Parameter->ip) ;
	GetCtrlVal (panel, CONTROL_DDS_PORT, &(Parameter->Port)) ;
	GetCtrlVal (panel, CONTROL_DDS_CLOCK, &(Parameter->Clock)) ;
	GetCtrlVal (panel, CONTROL_DDS_RATE, &(Parameter->SweepRate)) ;
	GetCtrlVal (panel, CONTROL_DDS_DELTA_T, &(Parameter->Delta_T)) ;
	return(Parameter);
}*/


#define error(...) _error(__FILE__, __LINE__, __func__, __VA_ARGS__)

void _error(const char *file, int line, const char *func, const char *frmt, ...)
{
	va_list args;
	va_start(args, line);
	fprintf(stderr, "ERROR: %s:%d:%s: ", file, line, func);
	vfprintf(stderr, frmt, args);
	fprintf(stderr, "\n");
	va_end(args);
}


void DDS_Initialize (DDSParameter *Param) {
	char  Request[255]; 
	//send NOP command 
	sprintf(Request,"set;%i;%i",1,CMD_NOP);   
	SendCmd(Request, Param) ;
	//reset the DDS
	DDSFox_Reset(Param);
	
	//Set Profile Number 0 (only one used for soft frequecy sweep)
//	sprintf(Request,"set;%i;%i;%i",1,CMD_PROFILE,0);   
//	SendCmd(Request, Param) ; 
	
	//Set Profile Number 7 (only one used for soft frequecy sweep)
	sprintf(Request,"set;%i;%i;%i",1,CMD_PROFILE,7);   
	SendCmd(Request, Param) ; 


	//Set Clock Divider to 00b (which means 1)
	DDSFox_SetDiv(Param);
    //Set sweep rate at 0	
	DDSFox_SetFreqMax (Param);
	DDSFox_SetFreq (Param) ;
	DDSFox_SetDT (Param) ;
	DDSFox_SetDf (Param) ;
	DDSFox_StartSweep (Param) ;
	return ;
}

void DDS_ReInitialize (DDSParameter *Param) {
	char  Request[255]; 
	//send NOP command 
	sprintf(Request,"set;%i;%i",1,CMD_NOP);   
	SendCmd(Request, Param) ;
	//reset the DDS
	//DDSFox_Reset(Param);
	
	//Set Profile Number 0 (only one used for soft frequecy sweep)
//	sprintf(Request,"set;%i;%i;%i",1,CMD_PROFILE,0);   
//	SendCmd(Request, Param) ; 
	
	//Set Profile Number 7 (only one used for soft frequecy sweep)
	sprintf(Request,"set;%i;%i;%i",1,CMD_PROFILE,7);   
	SendCmd(Request, Param) ; 


	//Set Clock Divider to 00b (which means 1)
	DDSFox_SetDiv(Param);
    //Set sweep rate at 0	
	DDSFox_SetFreqMax (Param);
	DDSFox_SetFreq (Param) ;
	DDSFox_SetDT (Param) ;
	DDSFox_SetDf (Param) ;
	DDSFox_StartSweep (Param) ;
	return ;
}


void DDSFox_Reset(DDSParameter *Param) {
	char  Request[255]; 
	sprintf(Request,"set;%i;%i",1,CMD_NOP);   
	SendCmd(Request, Param) ;
	sprintf(Request,"set;%i;%i",1,CMD_RESET_DDS);   
	SendCmd(Request, Param) ;
	return ;
}


void DDSFox_StopSweep(DDSParameter *Param) {
	char  Request[255];
    sprintf(Request,"set;%i;%i;%i",1,CMD_STOP_SWEEP,1); 
  	SendCmd(Request, Param);
	return ;
}


void DDSFox_StartSweep(DDSParameter *Param) {
	char  Request[255];
    sprintf(Request,"set;%i;%i;%i",1,CMD_START_SWEEP,1); 
  	SendCmd(Request, Param);
	return ;
}

void DDSFox_SetFreqMax (DDSParameter *Param) {
	double word ;
	unsigned char octets[6];
	char  Request[255]; 
	convert_double_6char(pow(2,48)/2,octets);	 // borne sup : clock / 2
	sprintf(Request,"set;%i;%i;%i;%i;%i;%i;%i;%i",1,CMD_FREQ_SUP,
		*(octets+5),*(octets+4),*(octets+3),*(octets+2),*(octets+1),*octets); 
	SendCmd(Request, Param);
	DDSFox_SetSweepSign (Param);
	return ;
}

void DDSFox_SetFreqMin (DDSParameter *Param) {
	double word ;
	unsigned char octets[6];
	char  Request[255]; 
	convert_double_6char(1,octets);	 // borne inf : ~0
	sprintf(Request,"set;%i;%i;%i;%i;%i;%i;%i;%i",1,CMD_FREQ_INF,
		*(octets+5),*(octets+4),*(octets+3),*(octets+2),*(octets+1),*octets); 
	SendCmd(Request, Param);
	DDSFox_SetSweepSign (Param);
	return ;
}

void DDSFox_SetFreq (DDSParameter *Param) {
	double word ;
	unsigned char octets[6];
	int SweepSign = -1 ;
	char  Request[255]; 
	if (Param->Profil == 0) {
		word = pow(2,48)*(Param->Frequency/Param->Clock);
		convert_double_6char(word, octets);			// borne inf : la freq voulu	
		sprintf(Request,"set;%i;%i;%i;%i;%i;%i;%i;%i",1,CMD_FREQ_INF,
			*(octets+5),*(octets+4),*(octets+3),*(octets+2),*(octets+1),*octets); 
		SendCmd(Request, Param);
	}
	else if(Param->Profil == 7) {
		SweepSign = DDSFox_GetSweepSign(Param) ;
		if(SweepSign == 0){								// sweep positif
			word = pow(2,48)*(Param->Frequency/Param->Clock);
			convert_double_6char(word, octets);			// borne inf : la freq voulu	
			sprintf(Request,"set;%i;%i;%i;%i;%i;%i;%i;%i",1,CMD_FREQ_INF,
				*(octets+5),*(octets+4),*(octets+3),*(octets+2),*(octets+1),*octets); 
			SendCmd(Request, Param);
			DDSFox_SetFreqMax (Param);
		}
		else {											// sweep neg
			word = pow(2,48)*(Param->Frequency/Param->Clock);
			convert_double_6char(word, octets);				// borne sup : la freq voulue	
			sprintf(Request,"set;%i;%i;%i;%i;%i;%i;%i;%i",1,CMD_FREQ_SUP,
				*(octets+5),*(octets+4),*(octets+3),*(octets+2),*(octets+1),*octets); 
			SendCmd(Request, Param);
			DDSFox_SetFreqMin (Param);
		}
	}
	return ;
}


// Change le signe de sweep en frequence. Argument: struct de param de la DDS
void DDSFox_SetSweepSign(DDSParameter *Param) {
	char  Request[255] ; 
	int SweepSign ;
	SweepSign = DDSFox_GetSweepSign(Param) ;
	sprintf(Request,"set;%i;%i;%i",1,CMD_SWEEP_SIGN, SweepSign) ; 
	SendCmd(Request, Param) ;
	return ;
}

/*void DDSFox_SetSweepSign(DDSParameter *Param) {
	char  Request[255] ; 
	int SweepSign ;
	if (Param->Profil == 7)
		Param->Frequency = DDSFox_ReadFreq(Param) ;
	DDSFox_SetFreq (Param) ;
	SweepSign = DDSFox_GetSweepSign(Param) ;
	sprintf(Request,"set;%i;%i;%i",1,CMD_SWEEP_SIGN, SweepSign) ; 
	SendCmd(Request, Param) ;
	return ;
}*/


// Change la valeur de la base pour 'lincrement de frequence (sweep). Argument: delta T x 10ms, retourne rien.
void DDSFox_SetDT(DDSParameter *Param) {
	char  Request[255]; 
	int dt= 0;
	char FTW0[255]="0";	   /**** sinon le fichier inf.xx est faux 	   ***/
	dt = ((Param->Delta_T)/BASE_TIME) - 1 ;
	sprintf(FTW0,"%ims",dt);
	sprintf(Request,"set;%i;%i;%i;%s",1,CMD_DT, dt ,FTW0);
	SendCmd(Request, Param) ; 
	return ;
}


// Change le facteur de division de la clock. Argument: facteur de div, retourne rien 
void DDSFox_SetDiv(DDSParameter *Param) {
	char  Request[255]; 
	int Div = DIV ;
	Command Rd;
	char  temp;
	init_command(&Rd);
	sprintf(Request,"get;%i;%i",1,CMD_CONFIG_REG2);      
	if (RecvCmd(&Rd, Request, Param) < 0)
		return;
	temp = atoi(Rd.value2) ;
	temp = temp & 0x9F ; 
	temp = temp | Div << 5 ;
	sprintf(Request,"set;%i;%i;%i;%i;%i;%i;%i",1,CMD_CONFIG_REG2,atoi(Rd.value0),
			atoi(Rd.value1),temp,atoi(Rd.value3),atoi(Rd.value4)) ;
	SendCmd(Request, Param) ;
	return ;
}



void DDSFox_SetDf(DDSParameter *Param) {
	char  Request[255]; 
	double word ;
	unsigned char *octets;
	word = pow(2,48)*(fabs(Param->SweepRate)*Param->Delta_T/Param->Clock);
	octets=malloc(6*sizeof(unsigned char));
	convert_double_6char(word, octets);	
	sprintf(Request,"set;%i;%i;%i;%i;%i;%i;%i;%i",1,CMD_DF,
		*(octets+5),*(octets+4),*(octets+3),*(octets+2),*(octets+1),*octets); 
	SendCmd(Request, Param);
	free(octets);
	return ;
}

int DDSFox_GetSweepSign(DDSParameter *Param) {
	if (Param->SweepRate >= 0) return(0);
	else return(1);
}


double DDSFox_ReadFreq(DDSParameter *Param) {
	char  Request[255]; 
	unsigned int OctetA, OctetB, OctetC, OctetD, OctetE, OctetF ;
	double FreqRead ;
	int cmd[20];
	Command Rd;
	init_command(&Rd);
	sprintf(Request,"get;%i;%i",1,CMD_GET_FREQ); 
	if (RecvCmd(&Rd, Request, Param) == -1)
		return -1.;
	OctetA=atoi(Rd.value0);
	OctetB=atoi(Rd.value1); 
	OctetC=atoi(Rd.value2); 
	OctetD=atoi(Rd.value3); 
	OctetE=atoi(Rd.value4); 
	OctetF=atoi(Rd.value5);
	FreqRead=(double)(1099511627776*OctetA +4294967296*OctetB +16777216*OctetC +65536*OctetD +256*OctetE +OctetF);    
	FreqRead=(FreqRead*Param->Clock)/ pow(2,48);
	//sprintf(parsebuf,"%fMHz",FreqRead/1000000);
	return(FreqRead);
}


/************************ Fonction de communications TCP ******************/
static const double timeout = 0.5;


int SendCmd(char *Buffer, DDSParameter *Param) {
	unsigned int hConv=0;
	char  Response[255];
	char parsebuf[255];
	if (ConnectToTCPServer (&hConv, Param->Port, Param->ip, OnTCPEvent, Response, 0) < 0) {
		error("Connect failed");
		return -1;
	}
	if (ClientTCPWrite (hConv, Buffer, strlen(Buffer)+1, 0) < 0) {
		error("Write failed");
		return -1;
	}
	sprintf(Response,"                              ");
	if (ClientTCPRead (hConv, Response, 255, 0) < 0) {
		error("Read failed");
		return -1;
	}
	if (strncmp("OK",Response,2)) {
		error("Response failed %s %s", Buffer, Response);
		return -1;
	}
	return 0;
}


int RecvCmd(Command *Rd, char * Buffer, DDSParameter *Param) {
	unsigned int hConv=0;
	char parsebuf[255];
	char  Response[255];
	if (ConnectToTCPServer (&hConv, Param->Port, Param->ip, OnTCPEvent, Response, 0) < 0) {
		error("Connect failed");
		return -1;     
	}
	if (ClientTCPWrite (hConv, Buffer, strlen(Buffer)+1, 0) < 0) {
		error("Write failed");
		return -1;
	}
	sprintf(Response,"                              ");     
	if (ClientTCPRead (hConv, Response, 255, 0) < 0) {
		error("Read failed");
		return -1;
	}

	if (strncmp(Buffer,Response,strlen(Buffer))) {
		error("Response failed %s %s", Buffer, Response);
		return -1;
	}
	
	sprintf(parsebuf,"%s",Response) ;	 
	parse_command(Rd, parsebuf) ; 	 
	return 0;
}


int OnTCPEvent(unsigned handle, int xType, int errCode, void *callbackData) {
	//char* Response = (char*)(callbackData);
	//char Response[255];
	//switch(xType) {
	//	case TCP_DISCONNECT :
			//printf("Server disconnected\n");
	//		break;
	//	case TCP_DATAREADY :
			//printf("Server data ready\n");
			//ClientTCPRead (handle, Response, 255, 5);
	//		break;
	//}
	return 0;
}

/************************ Fonction de mise en forme des données pour le transfert ******************/

void parse_command2(int* cmd, char* buf)
{
	char* pointer;
	int c = 0;
	
	pointer = strtok( buf, CMD_SEP );
	while( pointer ){
		if ((c > 2) && ( c < 19 ))
		{
			cmd[c-3] = atoi(pointer);
			printf("%i", cmd[c-3]);
		}
			
			
		pointer = strtok( NULL, CMD_SEP );
		c++;
	}
}


int parse_command(Command *cmd1, char *buf){
	char* pointer;
	int c = 0;
	
	pointer = strtok( buf, CMD_SEP );
	while( pointer ){
		if( c == 0 ){
			cmd1->action = pointer;
		}
		else if( c == 1 ){
			cmd1->canal = pointer;
		}
		else if( c == 2 ){
			cmd1->command = pointer;
		}
		else if( c == 3 ){
			cmd1->value0 = pointer;
		}
		else if( c == 4 ){
			cmd1->value1 = pointer;
		}
		else if( c == 5 ){
			cmd1->value2 = pointer;
		}
		else if( c == 6 ){
			cmd1->value3 = pointer;
		}
		else if( c == 7 ){
			cmd1->value4 = pointer;
		}				 
		else if( c == 8 ){
			cmd1->value5 = pointer;
		}
		else if( c == 9 ){
			cmd1->value6 = pointer;
		}
		else if( c == 10 ){
			cmd1->value7 = pointer;
		}
		pointer = strtok( NULL, CMD_SEP );
		c++;
	}
	return 0;
}


int init_command(Command *cmd1){
	cmd1->action = NULL;
	cmd1->canal = NULL;
	cmd1->command = NULL;
	cmd1->value0 = NULL;
	cmd1->value1 = NULL;
	cmd1->value2 = NULL;
	cmd1->value3 = NULL;
	cmd1->value4 = NULL;
	cmd1->value5 = NULL;
	cmd1->value6 = NULL;
	cmd1->value7 = NULL;
	cmd1->value8 = NULL;
	cmd1->value9 = NULL;
	cmd1->value10 = NULL;
	cmd1->value11 = NULL;
	cmd1->value12 = NULL;
	cmd1->value13 = NULL;
	cmd1->value14 = NULL;
	cmd1->value15 = NULL;
	cmd1->value16 = NULL;
	cmd1->value17 = NULL;
	cmd1->value18 = NULL;
	cmd1->value19 = NULL;
	return 0;
}


//Convert double into 6 bytes sent back by an unsigned char pointer
int convert_double_6char (double fraction, unsigned char* octets) {
	double  bita, bitb, bitc, bitd, bite, bitf;
	bitf= fraction/(1099511627776.0); 
	*(octets+5)=(unsigned char)bitf;
	bite= (fraction-1099511627776.0*(*(octets+5)))/(4294967296.0);
	*(octets+4)=(unsigned char)bite;
	bitd=(fraction-1099511627776.0*(*(octets+5))- 4294967296.0*(*(octets+4)))/( 16777216.0);
	*(octets+3)=(unsigned char)bitd;
	bitc=(fraction-1099511627776.0*(*(octets+5))- 4294967296.0*(*(octets+4))-16777216.0*(*(octets+3)))/( 65536.0);
	*(octets+2)=(unsigned char)bitc;
	bitb= (fraction-1099511627776.0*(*(octets+5))- 4294967296.0*(*(octets+4))-16777216.0*(*(octets+3))-65536*(*(octets+2)))/ 256.0;
	*(octets+1)=(unsigned char)bitb;
	bita= (fraction-1099511627776.0*(*(octets+5))- 4294967296.0*(*(octets+4))-16777216.0*(*(octets+3))-65536*(*(octets+2))-256.0*(*(octets+1)))/ 1.0;  
	*(octets)=(unsigned char)bita;
	return 0;
}