void EthernetInit()
{
    _delay_loop_1(50); // 12ms

    /* enable PD4, as input */
    DDRD&= ~(1<<DDRD4);

    /*initialize enc28j60*/
    enc28j60Init(mymac);
    enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
    _delay_loop_1(50); // 12ms
        
    /* Magjack leds configuration, see enc28j60 datasheet, page 11 */
    // LEDB=yellow LEDA=green
    //
    // 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
    // enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
    enc28j60PhyWrite(PHLCON,0x476);
    _delay_loop_1(50); // 12ms
        
    /* set output to GND, red LED on */
    //PORTB &= ~(1<<PORTB1);
    //i=1;
//
    //init the ethernet/ip layer:
    init_ip_arp_udp_tcp(mymac,myip,80);

}
     //网卡初始化函数
static void low_level_init( struct netif *netif )
{
	/* set MAC hardware address length */
	netif->hwaddr_len = 6;

	/* set MAC hardware address */
	/* MAC地址 */
	netif->hwaddr[0] = macaddress[0];
	netif->hwaddr[1] = macaddress[1];
	netif->hwaddr[2] = macaddress[2];
	netif->hwaddr[3] = macaddress[3];
	netif->hwaddr[4] = macaddress[4];
	netif->hwaddr[5] = macaddress[5];

	/* maximum transfer unit */
	/* 最大传输单元 */
	netif->mtu = netifMTU;

	/* broadcast capability */
	netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;

	/* Initialise the EMAC.  This routine contains code that polls status bits.  
	If the Ethernet cable is not plugged in then this can take a considerable 
	time.  To prevent this starving lower priority tasks of processing time we
	lower our priority prior to the call, then raise it back again once the
	initialisation is complete. */

	enc28j60Init(netif->hwaddr);	    //初始化enc28j60
	
//enc28j60PhyWrite(PHLCON, 0x476);  //设置PHY

  enc28j60clkout(1); 				        // change clkout from 6.25MHz to 12.5MHz
}		   
void EtherShield::ES_enc28j60Init(uint8_t* macaddr){
  /*initialize enc28j60*/
  enc28j60Init(macaddr);
  enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
  timerPause(10);

  /* Magjack leds configuration, see enc28j60 datasheet, page 11 */
  // LEDA=greed LEDB=yellow
  //
  // 0x880 is PHLCON LEDB=on, LEDA=on
  // enc28j60PhyWrite(PHLCON,0b0000 1000 1000 00 00);
  enc28j60PhyWrite(PHLCON,0x880);
  delay(500);
  //
  // 0x990 is PHLCON LEDB=off, LEDA=off
  // enc28j60PhyWrite(PHLCON,0b0000 1001 1001 00 00);
  enc28j60PhyWrite(PHLCON,0x990);
  delay(500);
  //
  // 0x880 is PHLCON LEDB=on, LEDA=on
  // enc28j60PhyWrite(PHLCON,0b0000 1000 1000 00 00);
  enc28j60PhyWrite(PHLCON,0x880);
  delay(500);
  //
  // 0x990 is PHLCON LEDB=off, LEDA=off
  // enc28j60PhyWrite(PHLCON,0b0000 1001 1001 00 00);
  enc28j60PhyWrite(PHLCON,0x990);
  delay(500);
  //
  // 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
  // enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
  enc28j60PhyWrite(PHLCON,0x476);
  delay(100);
}
Exemple #4
0
void EtherShield::ES_enc28j60Init( uint8_t* macaddr, uint8_t csPin ) {
  /*initialize enc28j60*/
  enc28j60InitWithCs( macaddr, csPin );
  enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
  delay(10);

  // 0x880 is PHLCON LEDB=on, LEDA=on
  // enc28j60PhyWrite(PHLCON,0b0000 1000 1000 00 00);
  enc28j60PhyWrite(PHLCON,0x880);
  delay(500);
  //
  // 0x990 is PHLCON LEDB=off, LEDA=off
  // enc28j60PhyWrite(PHLCON,0b0000 1001 1001 00 00);
  enc28j60PhyWrite(PHLCON,0x990);
  delay(500);
  //
  // 0x880 is PHLCON LEDB=on, LEDA=on
  // enc28j60PhyWrite(PHLCON,0b0000 1000 1000 00 00);
  enc28j60PhyWrite(PHLCON,0x880);
  delay(500);
  //
  // 0x990 is PHLCON LEDB=off, LEDA=off
  // enc28j60PhyWrite(PHLCON,0b0000 1001 1001 00 00);
  enc28j60PhyWrite(PHLCON,0x990);
  delay(500);
  //
  // 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
  // enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
  enc28j60PhyWrite(PHLCON,0x476);
  delay(100);
}
Exemple #5
0
/**
 * Initialize ENC28J60 Chip
**/
void mb_init(void) {
	//initialize the hardware driver for the enc28j60
	enc28j60Init((uint8_t*)mymac);
	enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
	_delay_us(60); // 60us
	/* Magjack leds configuration, see enc28j60 datasheet, page 11 */
	// LEDB=yellow LEDA=green
	//
	// 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
	// enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
	enc28j60PhyWrite(PHLCON,0x476);
}
Exemple #6
0
void NanodeUIP::init(const byte *macaddr) {
  const struct uip_eth_addr *mac=(struct uip_eth_addr *)macaddr;

  uip_setethaddr((*mac));
  enc28j60SpiInit();
  enc28j60InitWithCs(macaddr, 8);
  enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
  delay(10);
  timer_set(&periodic_timer, CLOCK_SECOND / 2);
  timer_set(&arp_timer, CLOCK_SECOND * 10);
  uip_init();
}
Exemple #7
0
/*******************************************************************************
*	函数名: etherdev_init
*	参  数: 无
*	返  回: 无
*	功  能: uIP 接口函数,初始化网卡
*/
void etherdev_init(void)
{	 u8 i;

	/*initialize enc28j60*/
	enc28j60Init(mymac);					  
	//把IP地址和MAC地址写入各自的缓存区	ipaddr[] macaddr[]
	init_ip_arp_udp_tcp(mymac,myip,mywwwport);
	for (i = 0; i < 6; i++)
	{
		uip_ethaddr.addr[i] = mymac[i];
	}
    //指示灯状态:0x476 is PHLCON LEDA(绿)=links status, LEDB(红)=receive/transmit
    //enc28j60PhyWrite(PHLCON,0x7a4);
	//PHLCON:PHY 模块LED 控制寄存器	
	enc28j60PhyWrite(PHLCON,0x0476);	
	enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz

}
int simple_server(eAdrGD* fADRGD,uint8_t* fSostEth,uint8_t* nBlock, uint8_t* fIPAddr,uint8_t* fMACAddr,uint8_t* fPORTNUMBER)
	{
	SPI1_Init();

//	Del_1ms(100);
	/*initialize enc28j60*/
	pADRGD=fADRGD;
	EthSost=fSostEth;
	EthBlock=nBlock;
	PORTNUMBER=fPORTNUMBER;
	MACAddr=fMACAddr;
	IPAddr=fIPAddr;
	enc28j60Init(MACAddr);
	init_ip_arp_udp_tcp(MACAddr,IPAddr,*PORTNUMBER);
    //ָʾµÆ״̬:0x476 is PHLCON LEDA(ÂÌ)=links status, LEDB(ºì)=receive/transmit
    enc28j60PhyWrite(PHLCON,0x7a4);
	enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
//	Del_1ms(20);
	Sockets[0].IP_PHASE=0;
	//init the ethernet/ip layer:
//        return (0);
	}
int main(void){

        
        uint16_t dat_p,plen;
        int8_t cmd;
        
        // Set the clock speed to "no pre-scaler" (8MHz with internal osc or 
        // full external speed)
        // set the clock prescaler. First write CLKPCE to enable setting 
        // of clock the next four instructions.
        // Note that the CKDIV8 Fuse determines the initial
        // value of the CKKPS bits.
        CLKPR=(1<<CLKPCE); // change enable
        CLKPR=0; // "no pre-scaler"
        _delay_loop_1(0); // 60us


        /*initialize enc28j60*/
        enc28j60Init(mymac);
        enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
        _delay_loop_1(0); // 60us
        
        /* Magjack leds configuration, see enc28j60 datasheet, page 11 */
        // LEDB=yellow LEDA=green
        //
        // 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
        // enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
        enc28j60PhyWrite(PHLCON,0x476);
        
        DDRB|= (1<<DDB1); // LED, enable PB1, LED as output
        LEDOFF;

        DDRD&= ~(1<<DDD6); // enable PB6, as input
        PORTD|= (1<<PIND6); // internal pullup resistor on

        init_cnt2();
        sei();

        //init the web server ethernet/ip layer:
        init_ip_arp_udp_tcp(mymac,myip,MYWWWPORT);
        // init the web client:
        client_set_gwip(gwip);  // e.g internal IP of dsl router
        //
        while(1){
                // handle ping and wait for a tcp packet
                plen=enc28j60PacketReceive(BUFFER_SIZE, buf);
                dat_p=packetloop_icmp_tcp(buf,plen);
                if(plen==0){
                        // we are idle here
                        if (client_waiting_gw() ){
                                continue;
                        }
                        if (dns_state==0){
                                sec=0;
                                dns_state=1;
                                dnslkup_request(buf,PSTR(WEBSERVER_VHOST));
                                continue;
                        }
                        if (dns_state==1 && dnslkup_haveanswer()){
                                dns_state=2;
                                client_set_wwwip(dnslkup_getip());
                        }
                        if (dns_state!=2){
                                // retry every minute if dns-lookup failed:
                                if (sec > 60){
                                        dns_state=0;
                                }
                                // don't try to use web client before
                                // we have a result of dns-lookup
                                continue;
                        }
                        //----------
                        if (start_web_client==1){
                                LEDON;
                                start_web_client=2;
                                sec=0;
                                web_client_attempts++;
                                // the identi.ca line is status=Url_encoded_string
                                strcat(statusstr,"status=");
                                // the text to send to identi.ca (append after status=):
                                //urlencode("Meals are ready",&(statusstr[7]));
                                urlencode("I like tuxgraphics eth boards, ",&(statusstr[7]));
                                // append a number:
                                itoa(web_client_attempts,&(statusstr[strlen(statusstr)]),10);
                                // The BLOGGACCOUNT Authorization code can be generated from 
                                // username and password of your identi.ca account 
                                // by using this encoder: http://tuxgraphics.org/~guido/javascript/base64-javascript.html
                                client_http_post(PSTR("/api/statuses/update.xml"),PSTR(WEBSERVER_VHOST),PSTR(BLOGGACCOUNT),statusstr,&browserresult_callback);
                        }
                        // count how often the switch was triggered at all:
                        if (contact_debounce==0 && bit_is_clear(PIND,PIND6)){
                                contact_onoff_cnt++;
                                contact_debounce=1;
                        }
                        // we send only a request if we are in the right state (do
                        // not flood with request):
                        if (start_web_client==0 && bit_is_clear(PIND,PIND6)){
                                resend=1; // resend once if it failed
                                start_web_client=1;
                        }
                        // Reset after a delay of 3 min to prevent email sending.
                        // We reset only if the contact on PD6 was released.
                        if (start_web_client<=3 && sec==180 && !bit_is_clear(PIND,PIND6)){
                                start_web_client=0;
                        }
                        // Resend the message if it failed:
                        if (start_web_client==2 && sec==7 && resend){
                                start_web_client=1;
                                resend--;
                        }
                        continue;
                }
                if(dat_p==0){ // plen!=0
                        // check for incomming messages not processed 
                        // as part of packetloop_icmp_tcp, e.g udp messages
                        udp_client_check_for_dns_answer(buf,plen);
                        continue;
                }
                        
                if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0){
                        // head, post and other methods:
                        //
                        // for possible status codes see:
                        // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
                        dat_p=http200ok();
                        dat_p=fill_tcp_data_p(buf,dat_p,PSTR("<h1>200 OK</h1>"));
                        goto SENDTCP;
                }
                cmd=analyse_get_url((char *)&(buf[dat_p+4]));
                // for possible status codes see:
                // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
                if (cmd==-1){
                        dat_p=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 401 Unauthorized\r\nContent-Type: text/html\r\n\r\n<h1>401 Unauthorized</h1>"));
                        goto SENDTCP;
                }
                if (cmd==1 && start_web_client==4){
                        // email was off, switch on
                        start_web_client=0;
                }
                if (cmd==0 ){
                        start_web_client=4; // email off
                }
                dat_p=http200ok();
                dat_p=print_webpage(buf);
                //
SENDTCP:
                www_server_reply(buf,dat_p); // send data

        }
        return (0);
}
int main(void){

        
        uint16_t dat_p;
        int8_t cmd;
        
        // Set the clock speed to "no pre-scaler" (8MHz with internal osc or 
        // full external speed)
        // set the clock prescaler. First write CLKPCE to enable setting 
        // of clock the next four instructions.
        // Note that the CKDIV8 Fuse determines the initial
        // value of the CKKPS bits.
        CLKPR=(1<<CLKPCE); // change enable
        CLKPR=0; // "no pre-scaler"
        _delay_loop_1(0); // 60us


        /*initialize enc28j60*/
        enc28j60Init(mymac);
        enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
        _delay_loop_1(0); // 60us
        
        /* Magjack leds configuration, see enc28j60 datasheet, page 11 */
        // LEDB=yellow LEDA=green
        //
        // 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
        // enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
        enc28j60PhyWrite(PHLCON,0x476);
        
        DDRB|= (1<<DDB1); // LED, enable PB1, LED as output
        LEDOFF;

        DDRD&= ~(1<<DDD6); // enable PB6, as input
        PORTD|= (1<<PIND6); // internal pullup resistor on

        init_cnt2();
        sei();

        //init the web server ethernet/ip layer:
        init_ip_arp_udp_tcp(mymac,myip,MYWWWPORT);
        // init the web client:
        client_set_gwip(gwip);  // e.g internal IP of dsl router
        client_set_wwwip(websrvip);
        //
        while(1){
                // handle ping and wait for a tcp packet
                dat_p=packetloop_icmp_tcp(buf,enc28j60PacketReceive(BUFFER_SIZE, buf));
                if(dat_p==0){
                        if (start_web_client==1){
                                LEDON;
                                start_web_client=2;
                                sec=0;
                                web_client_attempts++;
                                // the text to send in the body of the mail:
                                urlencode("The door is open",urlvarstr);
                                // The string "test+emailnotify" is the subject line
                                // of the email. A plus sign translates into a space character.
                                // The MMaccountID is gus123, edit and replace by your own.
                                client_browse_url(PSTR("/cgi-bin/mm?a=gus123&s=test+emailnotify&d="),urlvarstr,PSTR(WEBSERVER_VHOST),&browserresult_callback);
                        }
                        // count how often the switch was triggered at all:
                        if (contact_debounce==0 && bit_is_clear(PIND,PIND6)){
                                contact_onoff_cnt++;
                                contact_debounce=1;
                        }
                        // we send only an email if we are in the right state (do
                        // not flood with email):
                        if (start_web_client==0 && bit_is_clear(PIND,PIND6)){
                                resend=1; // resend once if it failed
                                start_web_client=1;
                        }
                        // Reset after a delay of 3 min to prevent email sending.
                        // We reset only if the contact on PD6 was released.
                        if (start_web_client<=3 && sec==180 && !bit_is_clear(PIND,PIND6)){
                                start_web_client=0;
                        }
                        // Resend the email if it failed:
                        if (start_web_client==2 && sec==7 && resend){
                                start_web_client=1;
                                resend--;
                        }
                        continue;
                }
                        
                if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0){
                        // head, post and other methods:
                        //
                        // for possible status codes see:
                        // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
                        dat_p=http200ok();
                        dat_p=fill_tcp_data_p(buf,dat_p,PSTR("<h1>200 OK</h1>"));
                        goto SENDTCP;
                }
                cmd=analyse_get_url((char *)&(buf[dat_p+4]));
                // for possible status codes see:
                // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
                if (cmd==-1){
                        dat_p=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 401 Unauthorized\r\nContent-Type: text/html\r\n\r\n<h1>401 Unauthorized</h1>"));
                        goto SENDTCP;
                }
                if (cmd==1 && start_web_client==4){
                        // email was off, switch on
                        start_web_client=0;
                }
                if (cmd==0 ){
                        start_web_client=4; // email off
                }
                dat_p=http200ok();
                dat_p=print_webpage(buf);
                //
SENDTCP:
                www_server_reply(buf,dat_p); // send data

        }
        return (0);
}
Exemple #11
0
int simple_server(void)
	{      
    unsigned int plen;
    unsigned int dat_p;
    unsigned char i=0;
    unsigned char cmd_pos=0;
    unsigned char cmd;
    unsigned char payloadlen=0;
    char str[30];
    char cmdval;

        
//	Del_1ms(100);
	/*initialize enc28j60*/
	enc28j60Init(mymac);
	init_ip_arp_udp_tcp(mymac,myip,mywwwport);
    //ָʾµÆ״̬:0x476 is PHLCON LEDA(ÂÌ)=links status, LEDB(ºì)=receive/transmit
    enc28j60PhyWrite(PHLCON,0x7a4);	
	enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
//	Del_1ms(20);

	//init the ethernet/ip layer:
    while(1)
    	{
//		OSTimeDlyHMSM(0, 0, 0, 50);
        // get the next new packet:
        plen = enc28j60PacketReceive(BUFFER_SIZE, buf);
        //USART_DMASendData(USART1,buf,plen);

        /*plen will ne unequal to zero if there is a valid packet (without crc error) */
        if(plen==0)
        	{
            continue;
        	}
        // arp is broadcast if unknown but a host may also
        // verify the mac address by sending it to 
        // a unicast address.
        if(eth_type_is_arp_and_my_ip(buf,plen))
        	{
			make_arp_answer_from_request(buf);
			//USART_DMASendText(USART1,"make_arp_answer_from_request\n");
            continue;
        	}

        // check if ip packets are for us:
        if(eth_type_is_ip_and_my_ip(buf,plen)==0)
        	{
            continue;
        	}

        
        if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V)
        	{
            // a ping packet, let's send pong	
			make_echo_reply_from_request(buf, plen);
			//USART_DMASendText(USART1,"make_echo_reply_from_request\n");
			continue;
        	}
               // tcp port www start, compare only the lower byte
		if (buf[IP_PROTO_P]==IP_PROTO_TCP_V&&buf[TCP_DST_PORT_H_P]==0&&buf[TCP_DST_PORT_L_P]==mywwwport)
			{
            if (buf[TCP_FLAGS_P] & TCP_FLAGS_SYN_V)
				{
                make_tcp_synack_from_syn(buf);
                // make_tcp_synack_from_syn does already send the syn,ack
                continue;
            	}
	        if (buf[TCP_FLAGS_P] & TCP_FLAGS_ACK_V)
				{
	            init_len_info(buf); // init some data structures
	            // we can possibly have no data, just ack:
	            dat_p=get_tcp_data_pointer();
	            if (dat_p==0)
					{
	                if (buf[TCP_FLAGS_P] & TCP_FLAGS_FIN_V)
						{
	                    // finack, answer with ack
	                    make_tcp_ack_from_any(buf);
	                	}
	                // just an ack with no data, wait for next packet
	                continue;
	                }
				if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0)
					{
			        // head, post and other methods:
			        //
			        // for possible status codes see:
			        // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
			        plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<h1>200 OK</h1>"));
			        goto SENDTCP;
					}
				if (strncmp("/ ",(char *)&(buf[dat_p+4]),2)==0)
					{
			        plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n"));
			        plen=fill_tcp_data_p(buf,plen,PSTR("<p>Usage: "));
			        plen=fill_tcp_data(buf,plen,baseurl);
			        plen=fill_tcp_data_p(buf,plen,PSTR("password</p>"));
			        goto SENDTCP;
					}
				cmd=analyse_get_url((char *)&(buf[dat_p+5]));
				// for possible status codes see:
				// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
				if (cmd==-1)
					{
			        plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 401 Unauthorized\r\nContent-Type: text/html\r\n\r\n<h1>401 Unauthorized</h1>"));
			        goto SENDTCP;
					}
				if (cmd==1)
					{
			        //PORTD|= (1<<PD7);// transistor on
					//IOCLR |= (1<<26);
//                    LED1ON();
					i=1;
					}
				if (cmd==0)
					{
			        //PORTD &= ~(1<<PD7);// transistor off
					//IOSET |= (1<<26);
//                    LED1OFF();
					i=0;
					}
				// if (cmd==-2) or any other value
				// just display the status:
				plen=print_webpage(buf,(i));
				
				SENDTCP:
				make_tcp_ack_from_any(buf); // send ack for http get
				make_tcp_ack_with_data(buf,plen); // send data
				continue;
				}
			}
	// tcp port www end
	//
	// udp start, we listen on udp port 1200=0x4B0
		if (buf[IP_PROTO_P]==IP_PROTO_UDP_V&&buf[UDP_DST_PORT_H_P]==4&&buf[UDP_DST_PORT_L_P]==0xb0)
			{
			payloadlen=buf[UDP_LEN_L_P]-UDP_HEADER_LEN;
			// you must sent a string starting with v
			// e.g udpcom version 10.0.0.24
			if (verify_password((char *)&(buf[UDP_DATA_P])))
				{
				// find the first comma which indicates 
				// the start of a command:
				cmd_pos=0;
				while(cmd_pos<payloadlen)
					{
					cmd_pos++;
					if (buf[UDP_DATA_P+cmd_pos]==',')
						{
					    cmd_pos++; // put on start of cmd
					    break;
						}
					}
				// a command is one char and a value. At
				// least 3 characters long. It has an '=' on
				// position 2:
				if (cmd_pos<2 || cmd_pos>payloadlen-3 || buf[UDP_DATA_P+cmd_pos+1]!='=')
					{
					strcpy(str,"e=no_cmd");
					goto ANSWER;
					}
				// supported commands are
				// t=1 t=0 t=?
				if (buf[UDP_DATA_P+cmd_pos]=='t')
					{
					cmdval=buf[UDP_DATA_P+cmd_pos+2];
					if(cmdval=='1')
							{
						    //PORTD|= (1<<PD7);// transistor on
							//IOCLR |= (1<<26);
                            //LED1ON();
						    strcpy(str,"t=1");
						    goto ANSWER;
							}
						else if(cmdval=='0')
							{
						    //PORTD &= ~(1<<PD7);// transistor off
							//IOSET |= (1<<26);
                            //LED1OFF();
						    strcpy(str,"t=0");
						    goto ANSWER;
							}
						else if(cmdval=='?')
							{
	/*
						    if (IOPIN & (1<<26))
								{
					            strcpy(str,"t=1");
					            goto ANSWER;
						    	}
	*/
						    strcpy(str,"t=0");
						    goto ANSWER;
							}
					}
				strcpy(str,"e=no_such_cmd");
				goto ANSWER;
				}
			strcpy(str,"e=invalid_pw");
			ANSWER:
			make_udp_reply_from_request(buf,str,strlen(str),myudpport);
			
			}
		}
//        return (0);
	}
void EtherShieldWrapper::ESW_enc28j60clkout(uint8_t clk){
	enc28j60clkout(clk);
}
Exemple #13
0
int main(void){
	
	uint16_t plen;
	uint16_t dat_p;
	uint8_t cmd;
	
	// set the clock speed to "no pre-scaler" (8MHz with internal osc or
	// full external speed)
	// set the clock prescaler. First write CLKPCE to enable setting of clock the
	// next four instructions.
	CLKPR=(1<<CLKPCE); // change enable
	CLKPR=0; // "no pre-scaler"
	uartInit();
	uartSetBaudRate(9600);
	
	_delay_loop_1(50); // 12ms
	/* enable PD2/INT0, as input */
	DDRD&= ~(1<<DDD2);
	
	
	
	// test button
	cbi(DDRD,PIND6);
	sbi(PORTD,PIND6); // internal pullup resistor on
	_delay_loop_1(50); // 12ms
	// read eeprom values unless, the PD6 pin is connected to GND during bootup
	// PD6 is used to reset to factory default. Note that factory default is
	// not stored back to eeprom.
	if (eeprom_read_byte((uint8_t *)0x0) == 19 && ! bit_is_clear(PIND,PIND6)){
		// ok magic number matches accept values
		eeprom_read_block((uint8_t *)myip,(void *)1,sizeof(myip));
		eeprom_read_block((uint8_t *)monitoredhost,(void *)6,sizeof(monitoredhost));
		pinginterval=eeprom_read_byte((uint8_t *)11);
		sendping=eeprom_read_byte((uint8_t *)12);
		eeprom_read_block((char *)password,(void *)13,sizeof(password));
		password[7]='\0'; // make sure it is terminated, should not be necessary
	}
	
	/*initialize enc28j60*/
	enc28j60Init(mymac);
	enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
	_delay_loop_1(50); // 12ms
	// LED
	/* enable PB1, LED as output */
	//DDRB|= (1<<DDB1);
	/* set output to Vcc, LED off */
	//LEDOFF;
	
	// the transistor on PD7
	DDRD|= (1<<DDD7);
	PORTD &= ~(1<<PIND7);// transistor off
	
	/* Magjack leds configuration, see enc28j60 datasheet, page 11 */
	// LEDB=yellow LEDA=green
	//
	// 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
	// enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
	enc28j60PhyWrite(PHLCON,0x476);
	_delay_loop_1(50); // 12ms
	
	
	//init the ethernet/ip layer:
	init_ip_arp_udp_tcp(mymac,myip,MYWWWPORT);
	timer_init();
	_delay_ms(1000);
	uartFlushReceiveBuffer();
	sei(); // interrupt enable
	
	while(1){
		//uartSendByte('a');
		
		//checkForEthPacket(ethPacket);
		stop_timer=2;
		if (checkForEthPacket(ethPacket))
		{
			sendEthPacket(time, sm);
			time.hr = 99;
		}
		stop_timer=0;
		// 			wait_data++;
		// 			if (wait_data>40)
		// 				wait_data=0;
		//_delay_ms(500);
		// spontanious messages must not interfer with
		// web pages
		if (pagelock==0 && enc28j60hasRxPkt()==0){
			if (sendping &&  havemac==0){
				client_arp_whohas(buf,monitoredhost);
				havemac=2;
			}
			if (sendping && havemac==1 && pingnow){
				pingnow=0;
				client_icmp_request(buf,monitoredhost,PINGPATTERN);
				pingtimer++; // otheweise we would call this function again
				hoststatus++;
				if (hoststatus==0xff){
					hoststatus=1; // wrap to 1
				}
			}
		}
		// get the next new packet:
		plen = enc28j60PacketReceive(BUFFER_SIZE, buf);
		
		/*plen will be unequal to zero if there is a valid 
		* packet (without crc error) */
		if(plen==0){
			continue;
		}
		
		// arp is broadcast if unknown but a host may also
		// verify the mac address by sending it to
		// a unicast address.
		if(eth_type_is_arp_and_my_ip(buf,plen)){
			if (eth_type_is_arp_req(buf)){
				make_arp_answer_from_request(buf);
			}
			if (eth_type_is_arp_reply(buf)){
				if (client_store_gw_mac(buf,monitoredhost)){
					havemac=1;
				}
			}
			continue;
		}
		
		// check if ip packets are for us:
		if(eth_type_is_ip_and_my_ip(buf,plen)==0){
			continue;
		}
		
		if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREPLY_V){
			if (buf[ICMP_DATA_P]== PINGPATTERN){
				if (check_ip_message_is_from(buf,monitoredhost)){
					// ping reply is from monitored host and ping was from us
					hoststatus=0;
					hostbackafterreboot=1;
				}
			}
		}
		if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V){
			if (check_ip_message_is_from(buf,monitoredhost)){
				// ping is from monitored host
				hoststatus=0;
				hostbackafterreboot=1;
			}
			// a ping packet, let's send pong
			make_echo_reply_from_request(buf,plen);
			continue;
		}
		// tcp port www start, compare only the lower byte
		if (buf[IP_PROTO_P]==IP_PROTO_TCP_V&&buf[TCP_DST_PORT_H_P]==0&&buf[TCP_DST_PORT_L_P]==MYWWWPORT){
			if (buf[TCP_FLAGS_P] & TCP_FLAGS_SYN_V){
				make_tcp_synack_from_syn(buf);
				// make_tcp_synack_from_syn does already send the syn,ack
				continue;
			}
			if (buf[TCP_FLAGS_P] & TCP_FLAGS_ACK_V){
				init_len_info(buf); // init some data structures
				// we can possibly have no data, just ack:
				dat_p=get_tcp_data_pointer();
				if (dat_p==0){
					if (buf[TCP_FLAGS_P] & TCP_FLAGS_FIN_V){
						// finack, answer with ack
						make_tcp_ack_from_any(buf);
					}
					// just an ack with no data, wait for next packet
					continue;
				}
				if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0){
					// head, post and other methods:
					//
					// for possible status codes see:
					// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
					plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<h1>200 OK</h1>"));
					goto SENDTCP;
				}
				if (strncmp("/ ",(char *)&(buf[dat_p+4]),2)==0){
					plen=print_webpage(buf);
					goto SENDTCP;
				}
				cmd=analyse_get_url((char *)&(buf[dat_p+5]));
				pagelock=1; // stop automatic actions until webpage is displayed
				//
				// error, default, will get overwritte in case 
				// something else is selected:
				plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<h1>Error</h1>"));
				plen=fill_tcp_data(buf,plen,errmsg);
				plen=fill_tcp_data_p(buf,plen,PSTR("<br><br><a href=/>-&gt;continue</a>\n"));
				// for possible status codes see:
				// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
				if (cmd==1){
					resethost();
					plen=print_webpage_confirm(buf);
				}
				if (cmd==2){
					store_in_eeprom();
					plen=print_webpage_confirm(buf);
				}
				if (cmd==7){
					store_in_eeprom();
					plen=print_webpage_confirm(buf);
					reinitmac=1;
				}
				// start and stop of wd, this is not store in eeprom
				if (cmd==5){
					pingtimer=1; // wd on 
					plen=print_webpage_confirm(buf);
				}
				if (cmd==4){
					pingtimer=0; // wd off 
					plen=print_webpage_confirm(buf);
				}
				if (cmd==3){
					plen=print_webpage_now(buf);
				}
				if (cmd==6){
					plen=print_webpage_config(buf);
				}
				// testing the temp OK / NOK
				if (cmd==20){
					sm[0].temp= atoi(strbuf);
					plen=print_webpage_confirm(buf);
				}
				if (cmd==21){
					sm[1].temp= atoi(strbuf);
					plen=print_webpage_confirm(buf);
				}
				
				// on / off - slave-modules
				// ON slave-module-1
				if (cmd==34){
					sm[0].status = atoi(strbuf);
					plen=print_webpage_confirmrm1(buf);
				}
				// OFF slave-module-1
				if (cmd==31){
					sm[0].status = atoi(strbuf);
					plen=print_webpage_confirmrm1(buf);
				}
				// ON slave-module-2
				if (cmd==32){
					sm[1].status = atoi(strbuf);
					plen=print_webpage_confirmrm2(buf);
				}
				// OFF slave-module-2
				if (cmd==33){
					sm[1].status = atoi(strbuf);
					plen=print_webpage_confirmrm2(buf);
				}
				
				if (cmd==35){
					plen=print_webpage_confirmclk(buf);
				}
				if (cmd==36){
					plen=print_webpage_confirmclk(buf);
				}
				
				// Room-1
				if (cmd==10){
					plen=print_webpage_room1(buf);
				}
				// ROom-2
				if (cmd==11){
					plen=print_webpage_room2(buf);
				}
				// Clock & date
				if (cmd==12){
					plen=print_webpage_clk(buf);
				}
				
				//
				SENDTCP:
				make_tcp_ack_from_any(buf); // send ack for http get
				make_tcp_ack_with_data(buf,plen); // send data
				continue;
			}
			
		}
		// tcp port www end
		//
		// udp not implemented
	}
	return (0);
}
int main(void){
        uint16_t dat_p;
        // Set the clock speed to "no pre-scaler" (8MHz with internal osc or 
        // full external speed)
        // set the clock prescaler. First write CLKPCE to enable setting 
        // of clock the next four instructions.
        // Note that the CKDIV8 Fuse determines the initial
        // value of the CKKPS bits.
#if 0		
        CLKPR=(1<<CLKPCE);
        CLKPR=0; // 8 MHZ
#endif		
        _delay_loop_1(0); // 60us
        
        /*initialize enc28j60*/
        enc28j60Init(mymac);
        enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
        _delay_loop_1(0); // 60us
        
        // Magjack leds configuration, see enc28j60 datasheet, page 11 
        // LEDB=yellow LEDA=green
        //
        // 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
        // enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
        enc28j60PhyWrite(PHLCON,0x476);

        //init the ethernet/ip layer:
        init_udp_or_www_server(mymac,myip);
        www_server_port(MYWWWPORT);

        while(1){
                // handle ping and wait for a tcp packet:
                dat_p=packetloop_arp_icmp_tcp(buf,enc28j60PacketReceive(BUFFER_SIZE, buf));

                // dat_p will be unequal to zero if there is a valid http get 
                if(dat_p==0){
                        // do nothing
                        continue;
                }
                // tcp port 80 begin
                if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0){
                        // head, post and other methods:
                        //
                        // for possible status codes see:
                        // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
                        dat_p=http200ok();
                        dat_p=fill_tcp_data_p(buf,dat_p,PSTR("<h1>200 OK</h1>"));
                        goto SENDTCP;
                }
                if (strncmp("/ ",(char *)&(buf[dat_p+4]),2)==0){
                        dat_p=http200ok();
                        dat_p=fill_tcp_data_p(buf,dat_p,PSTR("<p>OK, works great!</p>\n"));
                        goto SENDTCP;
                }
                // all other URLs:
                dat_p=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 401 Unauthorized\r\nContent-Type: text/html\r\n\r\n<h1>401 Unauthorized</h1>"));
SENDTCP:
                www_server_reply(buf,dat_p); // send web page data
        }
        return (0);
}
int main(void){

        
        uint16_t plen;
        uint16_t dat_p;
        uint8_t i=0;
        uint8_t payloadlen=0;
        char str[20];
        
        // set the clock speed to 8MHz
        // set the clock prescaler. First write CLKPCE to enable setting of clock the
        // next four instructions.
        CLKPR=(1<<CLKPCE);
        CLKPR=0; // 8 MHZ
        
        _delay_loop_1(50); // 12ms
        
        /*initialize enc28j60*/
        enc28j60Init(mymac);
        enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
        _delay_loop_1(50); // 12ms
        
        // LED
        /* enable PB1, LED as output */
        DDRB|= (1<<DDB1);

        /* set output to Vcc, LED off */
        PORTB|= (1<<PORTB1);
        
        /* Magjack leds configuration, see enc28j60 datasheet, page 11 */
        // LEDB=yellow LEDA=green
        //
        // 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
        // enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
        enc28j60PhyWrite(PHLCON,0x476);
        _delay_loop_1(50); // 12ms
        
        /* set output to GND, red LED on */
        PORTB &= ~(1<<PORTB1);
        i=1;

        //init the ethernet/ip layer:
        init_ip_arp_udp_tcp(mymac,myip,MYWWWPORT);

        while(1){
                // get the next new packet:
                plen = enc28j60PacketReceive(BUFFER_SIZE, buf);

                /*plen will ne unequal to zero if there is a valid 
                 * packet (without crc error) */
                if(plen==0){
                        continue;
                }
                // arp is broadcast if unknown but a host may also
                // verify the mac address by sending it to 
                // a unicast address.
                if(eth_type_is_arp_and_my_ip(buf,plen)){
                        make_arp_answer_from_request(buf);
                        continue;
                }
                // check if ip packets (icmp or udp) are for us:
                if(eth_type_is_ip_and_my_ip(buf,plen)==0){
                        continue;
                }
                
                if (i){
                        /* set output to Vcc, LED off */
                        PORTB|= (1<<PORTB1);
                        i=0;
                }else{
                        /* set output to GND, LED on */
                        PORTB &= ~(1<<PORTB1);
                        i=1;
                }

                if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V){
                        // a ping packet, let's send pong
                        make_echo_reply_from_request(buf,plen);
                        continue;
                }

                // tcp port 80 start
                if (buf[IP_PROTO_P]==IP_PROTO_TCP_V&&buf[TCP_DST_PORT_H_P]==0&&buf[TCP_DST_PORT_L_P]==MYWWWPORT){
                        if (buf[TCP_FLAGS_P] & TCP_FLAGS_SYN_V){
                                make_tcp_synack_from_syn(buf);
                                // make_tcp_synack_from_syn does already send the syn,ack
                                continue;
                        }
                        if (buf[TCP_FLAGS_P] & TCP_FLAGS_ACK_V){
                                init_len_info(buf); // init some data structures
                                // we can possibly have no data, just ack:
                                dat_p=get_tcp_data_pointer();
                                if (dat_p==0){
                                        if (buf[TCP_FLAGS_P] & TCP_FLAGS_FIN_V){
                                                // finack, answer with ack
                                                make_tcp_ack_from_any(buf);
                                        }
                                        // just an ack with no data, wait for next packet
                                        continue;
                                }
                                if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0){
                                        // head, post and other methods:
                                        //
                                        // for possible status codes see:
                                        // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
                                        plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<h1>200 OK</h1>"));
                                        goto SENDTCP;
                                }
                                // any GET, any url:
                                plen=print_webpage(buf,enc28j60getrev());
SENDTCP:
                                make_tcp_ack_from_any(buf); // send ack for http get
                                make_tcp_ack_with_data(buf,plen); // send data
                                continue;
                        }
                }
                // tcp port 80 end
                //
                // udp start, we listen on udp port 1200=0x4B0
                if (buf[IP_PROTO_P]==IP_PROTO_UDP_V&&buf[UDP_DST_PORT_H_P]==4&&buf[UDP_DST_PORT_L_P]==0xb0){
                        payloadlen=buf[UDP_LEN_L_P]-UDP_HEADER_LEN;
                        // you must sent a string starting with v
                        // e.g udpcom version 10.0.0.24
                        if (buf[UDP_DATA_P]=='v' ){
                                str[0]='v';
                                str[1]='e';
                                str[2]='r';
                                str[3]='=';
                                str[4]='B';
                                itoa((enc28j60getrev()),&(str[5]),10);
                                make_udp_reply_from_request(buf,str,strnlen(str,10),MYUDPPORT);
                        }
                }
        }
        return (0);
}
int main(void)
{
  uint16_t dat_p;
        
  ADC_init();
  _delay_ms ( 100 );
  //DDRB |= (1<<PB0);

  initTimer();



  //initialize the hardware driver for the enc28j60
  enc28j60Init(mymac);
  enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
  _delay_loop_1(0); // 60us
  enc28j60PhyWrite(PHLCON,0x476);
        
  //init the ethernet/ip layer:
  init_udp_or_www_server(mymac,myip);
  www_server_port(MYWWWPORT);

  while(1)
  {
    // read packet, handle ping and wait for a tcp packet:
    dat_p=packetloop_arp_icmp_tcp(buf,enc28j60PacketReceive(BUFFER_SIZE, buf));

    // dat_p will be unequal to zero if there is a valid  http get
    if(dat_p==0)
    {
	// no http request
	continue;
    }
    // tcp port 80 begin
    if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0)
    {
      // head, post and other methods:
      dat_p=http200ok();
      dat_p=fill_tcp_data_p(buf,dat_p,PSTR("<h1>200 OK</h1>"));
      www_server_reply(buf,dat_p);
      continue;
    }
    // just one web page in the "root directory" of the web server
    if (strncmp("/ ",(char *)&(buf[dat_p+4]),2)==0)
    {
      //dat_p=print_webpage(buf);
      dat_p=printIndex(buf);
      www_server_reply(buf,dat_p);
    }
    else if (strncmp("/now.htm", (char *)&(buf[dat_p+4]),8) == 0 )
    {
      dat_p = printNowHTML ( buf );
      www_server_reply( buf, dat_p );
    }
    else if (strncmp("/min0.htm", (char *)&(buf[dat_p+4]),9) == 0 )
    {
      dat_p = printMinHTML ( buf, 0 );
      www_server_reply( buf, dat_p );
    }
    else if (strncmp("/min1.htm", (char *)&(buf[dat_p+4]),9) == 0 )
    {
      dat_p = printMinHTML ( buf, 1 );
      www_server_reply( buf, dat_p );
    }
    else if (strncmp("/wlcm.htm", (char *)&(buf[dat_p+4]),9) == 0 )
    {
      dat_p = printWelcomeHTML ( buf );
      www_server_reply( buf, dat_p );
    }
    else
    {
      dat_p=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 401 Unauthorized\r\nContent-Type: text/html\r\n\r\n<h1>401 Unauthorized</h1>"));
      www_server_reply(buf,dat_p);
    }
  }
  return (0);
}
Exemple #17
0
int main(void){
        uint16_t plen;
        uint16_t dat_p;
        uint8_t i=0;
        uint8_t payloadlen=0;

        // set the clock speed to 8MHz
        // set the clock prescaler. First write CLKPCE to enable setting of clock the
        // next four instructions.
        //CLKPR=(1<<CLKPCE);
        //CLKPR=0; // 8 MHZ
        _delay_loop_1(50); // 12ms

        // LED
        /* enable PB1, LED as output */
        DDRB|= (1<<DDB1);

        /* one blink for indicate of start programm */
        cbi(PORTB, PORTB1); // on
        _delay_ms(100);
        sbi(PORTB,PORTB1);  // off
        _delay_ms(100);
        cbi(PORTB,PORTB1);  // on

        /*initialize enc28j60*/
        enc28j60Init(mymac);
        enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
        _delay_loop_1(50); // 12ms

        /* Magjack leds configuration, see enc28j60 datasheet, page 11 */
        // LEDB=yellow LEDA=green
        //
        // 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
        // enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
        enc28j60PhyWrite(PHLCON,0x476);
        _delay_loop_1(50); // 12ms

        /* set output to GND, red LED on */
        PORTB &= ~(1<<PORTB1);
        i=1;

        //init the ethernet/ip layer:
        init_ip_arp_udp_tcp(mymac,myip,MYWWWPORT);

        while(1){
                // get the next new packet:
                plen = enc28j60PacketReceive(BUFFER_SIZE, buf);

                /*plen will ne unequal to zero if there is a valid
                 * packet (without crc error) */
                if(plen==0){
                        continue;
                }
                // arp is broadcast if unknown but a host may also
                // verify the mac address by sending it to
                // a unicast address.
                if(eth_type_is_arp_and_my_ip(buf,plen)){
                        make_arp_answer_from_request(buf);
                        continue;
                }
                // check if ip packets (icmp or udp) are for us:
                if(eth_type_is_ip_and_my_ip(buf,plen)==0){
                        continue;
                }

                if (i){
                        /* set output to Vcc, LED off */
                        PORTB|= (1<<PORTB1);
                        i=0;
                }else{
                        /* set output to GND, LED on */
                        PORTB &= ~(1<<PORTB1);
                        i=1;
                }


                if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V){
                        // a ping packet, let's send pong
                        make_echo_reply_from_request(buf,plen);
                        continue;
                }
                // tcp port www start, compare only the lower byte
                if (buf[IP_PROTO_P]==IP_PROTO_TCP_V&&buf[TCP_DST_PORT_H_P]==0&&buf[TCP_DST_PORT_L_P]==MYWWWPORT){
                        if (buf[TCP_FLAGS_P] & TCP_FLAGS_SYN_V){
                                make_tcp_synack_from_syn(buf);
                                // make_tcp_synack_from_syn does already send the syn,ack
                                continue;
                        }
                        if (buf[TCP_FLAGS_P] & TCP_FLAGS_ACK_V){
                                init_len_info(buf); // init some data structures
                                // we can possibly have no data, just ack:
                                dat_p=get_tcp_data_pointer();
                                if (dat_p==0){
                                        if (buf[TCP_FLAGS_P] & TCP_FLAGS_FIN_V){
                                                // finack, answer with ack
                                                make_tcp_ack_from_any(buf);
                                        }
                                        // just an ack with no data, wait for next packet
                                        continue;
                                }
                                if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0){
                                        // head, post and other methods:
                                        //
                                        // for possible status codes see:
                                        // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
                                        plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<h1>200 OK</h1>"));
                                }else{
                                        // the "get" method
                                        plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<p>OK, it works</p>"));
                                }

                                make_tcp_ack_from_any(buf); // send ack for http get
                                make_tcp_ack_with_data(buf,plen); // send data
                                continue;
                        }

                }
                // udp interface:
                if (buf[IP_PROTO_P]==IP_PROTO_UDP_V){
                        payloadlen=buf[UDP_LEN_L_P]-UDP_HEADER_LEN;
                        // the received command has to start with t and be 4 char long
                        // e.g "test\0"
                        if (buf[UDP_DATA_P]=='t' && payloadlen==5){
                                make_udp_reply_from_request(buf,"hello",6,MYUDPPORT);
                        }
                }
        }
        return (0);
}
void EtherShield::ES_enc28j60clkout(uint8_t clk){
	enc28j60clkout(clk);
}
Exemple #19
0
int main(void){

        
        uint16_t plen;
        uint16_t dat_p;
        uint8_t i=0;
        uint8_t cmd_pos=0;
        int8_t cmd;
        uint8_t payloadlen=0;
        char str[30];
        char cmdval;
        
        // set the clock speed to "no pre-scaler" (8MHz with internal osc or 
        // full external speed)
        // set the clock prescaler. First write CLKPCE to enable setting of clock the
        // next four instructions.
        CLKPR=(1<<CLKPCE); // change enable
        CLKPR=0; // "no pre-scaler"
        delay_ms(1);

        /* enable PD2/INT0, as input */
        DDRD&= ~(1<<DDD2);

        /*initialize enc28j60*/
        enc28j60Init(mymac);
        enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
        delay_ms(10);
        
        // LED
        /* enable PB1, LED as output */
        DDRB|= (1<<DDB1);

        /* set output to Vcc, LED off */
        PORTB|= (1<<PB1);

        // the transistor on PD7
        DDRD|= (1<<DDD7);
        PORTD &= ~(1<<PD7);// transistor off
        
        /* Magjack leds configuration, see enc28j60 datasheet, page 11 */
        // LEDB=yellow LEDA=green
        //
        // 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
        // enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
        enc28j60PhyWrite(PHLCON,0x476);
        delay_ms(20);
        
        /* set output to GND, red LED on */
        PORTB &= ~(1<<PB1);
        i=1;

        //init the ethernet/ip layer:
        init_ip_arp_udp_tcp(mymac,myip,MYWWWPORT);

        while(1){
                // get the next new packet:
                plen = enc28j60PacketReceive(BUFFER_SIZE, buf);

                /*plen will ne unequal to zero if there is a valid 
                 * packet (without crc error) */
                if(plen==0){
                        continue;
                }
                        
                // arp is broadcast if unknown but a host may also
                // verify the mac address by sending it to 
                // a unicast address.
                if(eth_type_is_arp_and_my_ip(buf,plen)){
                        make_arp_answer_from_request(buf);
                        continue;
                }

                // check if ip packets are for us:
                if(eth_type_is_ip_and_my_ip(buf,plen)==0){
                        continue;
                }
                // led----------
                if (i){
                        /* set output to Vcc, LED off */
                        PORTB|= (1<<PB1);
                        i=0;
                }else{
                        /* set output to GND, LED on */
                        PORTB &= ~(1<<PB1);
                        i=1;
                }
                
                if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V){
                        // a ping packet, let's send pong
                        make_echo_reply_from_request(buf,plen);
                        continue;
                }
                // tcp port www start, compare only the lower byte
                if (buf[IP_PROTO_P]==IP_PROTO_TCP_V&&buf[TCP_DST_PORT_H_P]==0&&buf[TCP_DST_PORT_L_P]==MYWWWPORT){
                        if (buf[TCP_FLAGS_P] & TCP_FLAGS_SYN_V){
                                make_tcp_synack_from_syn(buf);
                                // make_tcp_synack_from_syn does already send the syn,ack
                                continue;
                        }
                        if (buf[TCP_FLAGS_P] & TCP_FLAGS_ACK_V){
                                init_len_info(buf); // init some data structures
                                // we can possibly have no data, just ack:
                                dat_p=get_tcp_data_pointer();
                                if (dat_p==0){
                                        if (buf[TCP_FLAGS_P] & TCP_FLAGS_FIN_V){
                                                // finack, answer with ack
                                                make_tcp_ack_from_any(buf);
                                        }
                                        // just an ack with no data, wait for next packet
                                        continue;
                                }
                                if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0){
                                        // head, post and other methods:
                                        //
                                        // for possible status codes see:
                                        // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
                                        plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<h1>200 OK</h1>"));
                                        goto SENDTCP;
                                }
                                if (strncmp("/ ",(char *)&(buf[dat_p+4]),2)==0){
                                        plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n"));
                                        plen=fill_tcp_data_p(buf,plen,PSTR("<p>Usage: http://host_or_ip/password</p>\n"));
                                        goto SENDTCP;
                                }
                                cmd=analyse_get_url((char *)&(buf[dat_p+5]));
                                // for possible status codes see:
                                // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
                                if (cmd==-1){
                                        plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 401 Unauthorized\r\nContent-Type: text/html\r\n\r\n<h1>401 Unauthorized</h1>"));
                                        goto SENDTCP;
                                }
                                if (cmd==1){
                                        PORTD|= (1<<PD7);// transistor on
                                }
                                if (cmd==0){
                                        PORTD &= ~(1<<PD7);// transistor off
                                }
                                if (cmd==-3){
                                        // redirect to add a trailing slash
                                        plen=moved_perm(buf);
                                        goto SENDTCP;
                                }
                                // if (cmd==-2) or any other value
                                // just display the status:
                                plen=print_webpage(buf,(PORTD & (1<<PD7)));
                                //
SENDTCP:
                                make_tcp_ack_from_any(buf); // send ack for http get
                                make_tcp_ack_with_data(buf,plen); // send data
                                continue;
                        }

                }
                // tcp port www end
                //
                // udp start, we listen on udp port 1200=0x4B0
                if (buf[IP_PROTO_P]==IP_PROTO_UDP_V&&buf[UDP_DST_PORT_H_P]==4&&buf[UDP_DST_PORT_L_P]==0xb0){
                        payloadlen=buf[UDP_LEN_L_P]-UDP_HEADER_LEN;
                        // you must sent a string starting with v
                        // e.g udpcom version 10.0.0.24
                        if (verify_password((char *)&(buf[UDP_DATA_P]))){
                                // find the first comma which indicates 
                                // the start of a command:
                                cmd_pos=0;
                                while(cmd_pos<payloadlen){
                                        cmd_pos++;
                                        if (buf[UDP_DATA_P+cmd_pos]==','){
                                                cmd_pos++; // put on start of cmd
                                                break;
                                        }
                                }
                                // a command is one char and a value. At
                                // least 3 characters long. It has an '=' on
                                // position 2:
                                if (cmd_pos<2 || cmd_pos>payloadlen-3 || buf[UDP_DATA_P+cmd_pos+1]!='='){
                                        strcpy(str,"e=no_cmd");
                                        goto ANSWER;
                                }
                                // supported commands are
                                // t=1 t=0 t=?
                                if (buf[UDP_DATA_P+cmd_pos]=='t'){
                                        cmdval=buf[UDP_DATA_P+cmd_pos+2];
                                        if(cmdval=='1'){
                                                PORTD|= (1<<PD7);// transistor on
                                                strcpy(str,"t=1");
                                                goto ANSWER;
                                        }else if(cmdval=='0'){
                                                PORTD &= ~(1<<PD7);// transistor off
                                                strcpy(str,"t=0");
                                                goto ANSWER;
                                        }else if(cmdval=='?'){
                                                if (PORTD & (1<<PD7)){
                                                        strcpy(str,"t=1");
                                                        goto ANSWER;
                                                }
                                                strcpy(str,"t=0");
                                                goto ANSWER;
                                        }
                                }
                                strcpy(str,"e=no_such_cmd");
                                goto ANSWER;
                        }
                        strcpy(str,"e=invalid_pw");
ANSWER:
                        make_udp_reply_from_request(buf,str,strlen(str),MYUDPPORT);
                }
        }
        return (0);
}