/*,-----------------------------------------------------------------------------------------.| net/nic|-----------------------------------------------------------------------------------------| this file implements some basic nic function| - wrapper for enc28j60 ethernet control lib| - ip/mac buffer conversion tools|| Author   : {{removed according to contest rules}}|            -> circuitcellar.com avr design contest 2006|            -> Entry #AT2616||-----------------------------------------------------------------------------------------| License:| This program is free software; you can redistribute it and/or modify it under| the terms of the GNU General Public License as published by the Free Software| Foundation; either version 2 of the License, or (at your option) any later| version.| This program is distributed in the hope that it will be useful, but|| WITHOUT ANY WARRANTY;|| without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR| PURPOSE. See the GNU General Public License for more details.|| You should have received a copy of the GNU General Public License along with| this program; if not, write to the Free Software Foundation, Inc., 51| Franklin St, Fifth Floor, Boston, MA 02110, USA|| http://www.gnu.de/gpl-ger.html`-----------------------------------------------------------------------------------------*/#include "net/mynic.h"#include "io/enc28j60.h"//ACTIVATE DEBUG by editing this file:#include "debug.h"uint32_t nic_ip;uint8_t  nic_mac[6];uint32_t nic_gateway_ip; void nic_init(){	//init enc28j60	#if NIC_DEBUG		softuart_puts_progmem("NIC : enc28j60 init... ");	#endif	enc28j60_init();   //enc28j60Init();	#if NIC_DEBUG		softuart_puts_progmem("done\r\n");	#endif	//set mac:	nic_copy_mac_to_buf(nic_mac);	//enc28j60_set_mac_address(&nic_mac[0]);	//set ip:	nic_ip = NIC_IP_ADDRESS;	#if NIC_DEBUG		softuart_puts_progmem("NIC : ");		softuart_put_ip(nic_ip);		softuart_putnewline();	#endif		//setup default gw ip:	nic_gateway_ip = NIC_GATEWAY_IP_ADDRESS;	}inline void nic_send_packet(unsigned char *buffer, unsigned int len){	enc28j60_send_packet(buffer,len);	//enc28j60PacketSend(len,buffer);}inline unsigned int nic_receive_packet(unsigned char *buffer, unsigned int maxlen){	return enc28j60_receive_packet(buffer,maxlen);	//return enc28j60PacketReceive(maxlen,buffer);}void nic_copy_mac_to_buf(unsigned char * buffer){	buffer[0] = NIC_MAC0;	buffer[1] = NIC_MAC1;	buffer[2] = NIC_MAC2;	buffer[3] = NIC_MAC3;	buffer[4] = NIC_MAC4;	buffer[5] = NIC_MAC5;}unsigned int nic_buffer_to_unsigned_int(unsigned char *buffer){	unsigned int res = ((unsigned int)buffer[20]<<8) | buffer[21];	return res;}uint32_t nic_buffer_to_ip(unsigned char *buffer){	uint32_t res = ((uint32_t)buffer[0]<<24) | ((uint32_t)buffer[1]<<16) | ((uint32_t)buffer[2]<<8) | ((uint32_t)buffer[3]<<0);	return res;}void nic_ip_to_buffer(unsigned char *buffer, uint32_t ip){	buffer[0] = ip>>24 & 0xFF;	buffer[1] = ip>>16 & 0xFF;	buffer[2] = ip>> 8 & 0xFF;	buffer[3] = ip>> 0 & 0xFF;}unsigned long nic_buffer_to_seq(unsigned char *buffer){	unsigned long res = ((unsigned long)buffer[0]<<24) | ((unsigned long)buffer[1]<<16) | ((unsigned long)buffer[2]<<8) | ((unsigned long)buffer[3]<<0);	return res;}void nic_seq_to_buffer(unsigned char *buffer, unsigned long seq){	buffer[0] = seq>>24 & 0xFF;	buffer[1] = seq>>16 & 0xFF;	buffer[2] = seq>> 8 & 0xFF;	buffer[3] = seq>> 0 & 0xFF;}