From eac2983285b4bc40250771fb5141aa63c76a9a90 Mon Sep 17 00:00:00 2001
From: "David A. Mellis" <d.mellis@arduino.cc>
Date: Wed, 30 Jul 2008 14:47:36 +0000
Subject: Adding ethernet library.

---
 libraries/Ethernet/Client.cpp                      |   97 ++
 libraries/Ethernet/Client.h                        |   28 +
 libraries/Ethernet/Ethernet.cpp                    |   38 +
 libraries/Ethernet/Ethernet.h                      |   22 +
 libraries/Ethernet/Print.cpp                       |  156 +++
 libraries/Ethernet/Print.h                         |   56 +
 libraries/Ethernet/Server.cpp                      |   80 ++
 libraries/Ethernet/Server.h                        |   23 +
 .../Ethernet/examples/chat_server/chat_server.pde  |   34 +
 .../Ethernet/examples/echo_server/echo_server.pde  |   53 +
 .../Ethernet/examples/web_client/web_client.pde    |   41 +
 libraries/Ethernet/utility/socket.c                |  558 +++++++++
 libraries/Ethernet/utility/socket.h                |   23 +
 libraries/Ethernet/utility/spi.h                   |   58 +
 libraries/Ethernet/utility/types.h                 |  165 +++
 libraries/Ethernet/utility/w5100.c                 | 1302 ++++++++++++++++++++
 libraries/Ethernet/utility/w5100.h                 |  299 +++++
 17 files changed, 3033 insertions(+)
 create mode 100644 libraries/Ethernet/Client.cpp
 create mode 100644 libraries/Ethernet/Client.h
 create mode 100644 libraries/Ethernet/Ethernet.cpp
 create mode 100644 libraries/Ethernet/Ethernet.h
 create mode 100755 libraries/Ethernet/Print.cpp
 create mode 100755 libraries/Ethernet/Print.h
 create mode 100644 libraries/Ethernet/Server.cpp
 create mode 100644 libraries/Ethernet/Server.h
 create mode 100644 libraries/Ethernet/examples/chat_server/chat_server.pde
 create mode 100644 libraries/Ethernet/examples/echo_server/echo_server.pde
 create mode 100644 libraries/Ethernet/examples/web_client/web_client.pde
 create mode 100755 libraries/Ethernet/utility/socket.c
 create mode 100755 libraries/Ethernet/utility/socket.h
 create mode 100755 libraries/Ethernet/utility/spi.h
 create mode 100755 libraries/Ethernet/utility/types.h
 create mode 100755 libraries/Ethernet/utility/w5100.c
 create mode 100755 libraries/Ethernet/utility/w5100.h

(limited to 'libraries/Ethernet')

diff --git a/libraries/Ethernet/Client.cpp b/libraries/Ethernet/Client.cpp
new file mode 100644
index 0000000..9d3e0df
--- /dev/null
+++ b/libraries/Ethernet/Client.cpp
@@ -0,0 +1,97 @@
+extern "C" {
+  #include "types.h"
+  #include "w5100.h"
+  #include "socket.h"
+}
+
+#include "Ethernet.h"
+#include "Client.h"
+#include "Server.h"
+
+Client::Client(uint8_t sock) {
+  _sock = sock;
+}
+
+Client::Client(uint8_t *ip, uint16_t port) {
+  _ip = ip;
+  _port = port;  
+}
+
+uint8_t Client::connect() {
+  _sock = 255;
+  
+  for (int i = 0; i < MAX_SOCK_NUM; i++) {
+    if (getSn_SR(i) == SOCK_CLOSED) {
+      _sock = i;
+    }
+  }
+  
+  if (_sock == 255)
+    return 0;
+    
+  // XXX: what port should we connect from?
+  socket(_sock, Sn_MR_TCP, _port, 0);
+  
+  if (!::connect(_sock, _ip, _port))
+    return 0;
+    
+  while (status() != SOCK_ESTABLISHED) {
+    if (status() == SOCK_CLOSED)
+      return 0;
+  }
+  
+  return 1;
+}
+
+void Client::write(uint8_t b) {
+  send(_sock, &b, 1);
+}
+
+int Client::available() {
+  return getSn_RX_RSR(_sock);
+}
+
+int Client::read() {
+  uint8_t b;
+  if (!available())
+    return -1;
+  recv(_sock, &b, 1);
+  return b;
+}
+
+void Client::flush() {
+  while (available())
+    read();
+}
+
+void Client::stop() {
+  close(_sock);
+  disconnect(_sock);
+  EthernetClass::_server_port[_sock] = 0;
+}
+
+uint8_t Client::connected() {
+  uint8_t s = status();
+  return !(s == SOCK_LISTEN || s == SOCK_CLOSED || (s == SOCK_CLOSE_WAIT && !available()));
+}
+
+uint8_t Client::status() {
+  return getSn_SR(_sock);
+}
+
+// the next three functions are a hack so we can compare the client returned
+// by Server::available() to null, or use it as the condition in an
+// if-statement.  this lets us stay compatible with the Processing network
+// library.
+
+uint8_t Client::operator==(int p) {
+  return _sock == 255;
+}
+
+uint8_t Client::operator!=(int p) {
+  return _sock != 255;
+}
+
+Client::operator bool() {
+  return _sock != 255;
+}
diff --git a/libraries/Ethernet/Client.h b/libraries/Ethernet/Client.h
new file mode 100644
index 0000000..5911b95
--- /dev/null
+++ b/libraries/Ethernet/Client.h
@@ -0,0 +1,28 @@
+#ifndef Client_h
+#define Client_h
+
+#include "Print.h"
+
+class Client : public Print {
+private:
+  uint8_t _sock;
+  uint8_t *_ip;
+  uint16_t _port;
+public:
+  Client(uint8_t);
+  Client(uint8_t *, uint16_t);
+  uint8_t status();
+  uint8_t connect();
+  virtual void write(uint8_t);
+  int available();
+  int read();
+  void flush();
+  void stop();
+  uint8_t connected();
+  uint8_t operator==(int);
+  uint8_t operator!=(int);
+  operator bool();
+  friend class Server;
+};
+
+#endif
diff --git a/libraries/Ethernet/Ethernet.cpp b/libraries/Ethernet/Ethernet.cpp
new file mode 100644
index 0000000..cb74876
--- /dev/null
+++ b/libraries/Ethernet/Ethernet.cpp
@@ -0,0 +1,38 @@
+extern "C" {
+  #include "types.h"
+  #include "w5100.h"
+}
+  
+#include "Ethernet.h"
+
+// XXX: don't make assumptions about the value of MAX_SOCK_NUM.
+uint8_t EthernetClass::_state[MAX_SOCK_NUM] = { 0, 0, 0, 0 };
+uint16_t EthernetClass::_server_port[MAX_SOCK_NUM] = { 0, 0, 0, 0 };
+
+void EthernetClass::begin(uint8_t *mac, uint8_t *ip)
+{
+  uint8_t gateway[4];
+  gateway[0] = ip[0];
+  gateway[1] = ip[1];
+  gateway[2] = ip[2];
+  gateway[3] = 1;
+  begin(mac, ip, gateway);
+}
+
+void EthernetClass::begin(uint8_t *mac, uint8_t *ip, uint8_t *gateway)
+{
+  uint8_t subnet[] = { 255, 255, 255, 0 };
+  begin(mac, ip, gateway, subnet);
+}
+
+void EthernetClass::begin(uint8_t *mac, uint8_t *ip, uint8_t *gateway, uint8_t *subnet)
+{
+	iinchip_init();
+	sysinit(0x55, 0x55);
+	setSHAR(mac);
+	setSIPR(ip);
+  setGAR(gateway);
+  setSUBR(subnet);
+}
+
+EthernetClass Ethernet;
diff --git a/libraries/Ethernet/Ethernet.h b/libraries/Ethernet/Ethernet.h
new file mode 100644
index 0000000..bdfc4dd
--- /dev/null
+++ b/libraries/Ethernet/Ethernet.h
@@ -0,0 +1,22 @@
+#ifndef Ethernet_h
+#define Ethernet_h
+
+#include <inttypes.h>
+#include "Client.h"
+#include "Server.h"
+
+class EthernetClass {
+private:
+public:
+  static uint8_t _state[MAX_SOCK_NUM];
+  static uint16_t _server_port[MAX_SOCK_NUM];
+  void begin(uint8_t *, uint8_t *);
+  void begin(uint8_t *, uint8_t *, uint8_t *);
+  void begin(uint8_t *, uint8_t *, uint8_t *, uint8_t *);
+  friend class Client;
+  friend class Server;
+};
+
+extern EthernetClass Ethernet;
+
+#endif
diff --git a/libraries/Ethernet/Print.cpp b/libraries/Ethernet/Print.cpp
new file mode 100755
index 0000000..7159566
--- /dev/null
+++ b/libraries/Ethernet/Print.cpp
@@ -0,0 +1,156 @@
+/*
+ HarwareSerial.cpp - Hardware serial library for Wiring
+ Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
+ 
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ 
+ This library 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
+ Lesser General Public License for more details.
+ 
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ 
+ Modified 23 November 2006 by David A. Mellis
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+#include "wiring.h"
+
+#include "Print.h"
+
+// Public Methods //////////////////////////////////////////////////////////////
+
+void Print::print(uint8_t b)
+{
+  write(b);
+}
+
+void Print::print(char c)
+{
+  print((byte) c);
+}
+
+void Print::print(const char c[])
+{
+  while (*c)
+    print(*c++);
+}
+
+void Print::print(int n)
+{
+  print((long) n);
+}
+
+void Print::print(unsigned int n)
+{
+  print((unsigned long) n);
+}
+
+void Print::print(long n)
+{
+  if (n < 0) {
+    print('-');
+    n = -n;
+  }
+  printNumber(n, 10);
+}
+
+void Print::print(unsigned long n)
+{
+  printNumber(n, 10);
+}
+
+void Print::print(long n, int base)
+{
+  if (base == 0)
+    print((char) n);
+  else if (base == 10)
+    print(n);
+  else
+    printNumber(n, base);
+}
+
+void Print::println(void)
+{
+  print('\r');
+  print('\n');  
+}
+
+void Print::println(char c)
+{
+  print(c);
+  println();  
+}
+
+void Print::println(const char c[])
+{
+  print(c);
+  println();
+}
+
+void Print::println(uint8_t b)
+{
+  print(b);
+  println();
+}
+
+void Print::println(int n)
+{
+  print(n);
+  println();
+}
+
+void Print::println(unsigned int n)
+{
+  print(n);
+  println();
+}
+
+void Print::println(long n)
+{
+  print(n);
+  println();  
+}
+
+void Print::println(unsigned long n)
+{
+  print(n);
+  println();  
+}
+
+void Print::println(long n, int base)
+{
+  print(n, base);
+  println();
+}
+
+// Private Methods /////////////////////////////////////////////////////////////
+
+void Print::printNumber(unsigned long n, uint8_t base)
+{
+  unsigned char buf[8 * sizeof(long)]; // Assumes 8-bit chars. 
+  unsigned long i = 0;
+
+  if (n == 0) {
+    print('0');
+    return;
+  } 
+
+  while (n > 0) {
+    buf[i++] = n % base;
+    n /= base;
+  }
+
+  for (; i > 0; i--)
+    print((char) (buf[i - 1] < 10 ?
+      '0' + buf[i - 1] :
+      'A' + buf[i - 1] - 10));
+}
diff --git a/libraries/Ethernet/Print.h b/libraries/Ethernet/Print.h
new file mode 100755
index 0000000..f3ec809
--- /dev/null
+++ b/libraries/Ethernet/Print.h
@@ -0,0 +1,56 @@
+/*
+  HardwareSerial.h - Hardware serial library for Wiring
+  Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library 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
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef Print_h
+#define Print_h
+
+#include <inttypes.h>
+
+#define DEC 10
+#define HEX 16
+#define OCT 8
+#define BIN 2
+#define BYTE 0
+
+class Print
+{
+  private:
+    void printNumber(unsigned long, uint8_t);
+  public:
+    virtual void write(uint8_t);
+    void print(char);
+    void print(const char[]);
+    void print(uint8_t);
+    void print(int);
+    void print(unsigned int);
+    void print(long);
+    void print(unsigned long);
+    void print(long, int);
+    void println(void);
+    void println(char);
+    void println(const char[]);
+    void println(uint8_t);
+    void println(int);
+    void println(unsigned int);
+    void println(long);
+    void println(unsigned long);
+    void println(long, int);
+};
+
+#endif
diff --git a/libraries/Ethernet/Server.cpp b/libraries/Ethernet/Server.cpp
new file mode 100644
index 0000000..351f838
--- /dev/null
+++ b/libraries/Ethernet/Server.cpp
@@ -0,0 +1,80 @@
+extern "C" {
+  #include "types.h"
+  #include "w5100.h"
+  #include "socket.h"
+}
+
+#include "Ethernet.h"
+#include "Client.h"
+#include "Server.h"
+
+Server::Server(uint16_t port)
+{
+  _port = port;
+}
+
+void Server::begin()
+{
+  for (int sock = 0; sock < MAX_SOCK_NUM; sock++) {
+    Client client(sock);
+    if (client.status() == SOCK_CLOSED) {
+      socket(sock, Sn_MR_TCP, _port, 0);
+      listen(sock);
+      EthernetClass::_server_port[sock] = _port;
+      break;
+    }
+  }  
+}
+
+void Server::accept()
+{
+  int listening = 0;
+  
+  for (int sock = 0; sock < MAX_SOCK_NUM; sock++) {
+    Client client(sock);
+    
+    if (EthernetClass::_server_port[sock] == _port) {
+      if (client.status() == SOCK_LISTEN) {
+        listening = 1;
+      } else if (client.status() == SOCK_CLOSE_WAIT && !client.available()) {
+        client.stop();
+      }
+    } 
+  }
+  
+  if (!listening) {
+    begin();
+  }
+}
+
+Client Server::available()
+{
+  accept();
+  
+  for (int sock = 0; sock < MAX_SOCK_NUM; sock++) {
+    Client client(sock);
+    if (EthernetClass::_server_port[sock] == _port &&
+        client.status() == SOCK_ESTABLISHED) {
+      if (client.available()) {
+        // XXX: don't always pick the lowest numbered socket.
+        return client;
+      }
+    }
+  }
+  
+  return Client(255);
+}
+
+void Server::write(uint8_t b) 
+{
+  accept();
+  
+  for (int sock = 0; sock < MAX_SOCK_NUM; sock++) {
+    Client client(sock);
+    
+    if (EthernetClass::_server_port[sock] == _port &&
+        client.status() == SOCK_ESTABLISHED) {
+      client.write(b);
+    }
+  }
+}
\ No newline at end of file
diff --git a/libraries/Ethernet/Server.h b/libraries/Ethernet/Server.h
new file mode 100644
index 0000000..d35e691
--- /dev/null
+++ b/libraries/Ethernet/Server.h
@@ -0,0 +1,23 @@
+#ifndef Server_h
+#define Server_h
+
+extern "C" {
+  #include "utility/types.h"
+}
+
+#include "Print.h"
+
+class Client;
+
+class Server : public Print {
+private:
+  uint16_t _port;
+  void accept();
+public:
+  Server(uint16_t);
+  Client available();
+  void begin();
+  virtual void write(uint8_t);
+};
+
+#endif
diff --git a/libraries/Ethernet/examples/chat_server/chat_server.pde b/libraries/Ethernet/examples/chat_server/chat_server.pde
new file mode 100644
index 0000000..825d2f8
--- /dev/null
+++ b/libraries/Ethernet/examples/chat_server/chat_server.pde
@@ -0,0 +1,34 @@
+/*
+ * Chat Server
+ *
+ * A simple server that distributes any incoming messages to all
+ * connected clients.  To use telnet to 10.0.0.177 and type!
+ */
+
+#include <Ethernet.h>
+
+// network configuration.  gateway and subnet are optional.
+byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
+byte ip[] = { 10, 0, 0, 177 };
+byte gateway[] = { 10, 0, 0, 1 };
+byte subnet[] = { 255, 255, 0, 0 };
+
+// telnet defaults to port 23
+Server server(23);
+
+void setup()
+{
+  // initialize the ethernet device
+  Ethernet.begin(mac, ip, gateway, subnet);
+  
+  // start listening for clients
+  server.begin();
+}
+
+void loop()
+{
+  Client client = server.available();
+  if (client) {
+    server.write(client.read());
+  }
+}
diff --git a/libraries/Ethernet/examples/echo_server/echo_server.pde b/libraries/Ethernet/examples/echo_server/echo_server.pde
new file mode 100644
index 0000000..e16dcb9
--- /dev/null
+++ b/libraries/Ethernet/examples/echo_server/echo_server.pde
@@ -0,0 +1,53 @@
+/*
+ * Echo Server
+ *
+ * Echoes back the headers of the web request.  Good for
+ * learning how the HTTP protocol works.
+ */
+
+#include <Ethernet.h>
+
+byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
+byte ip[] = { 10, 0, 0, 177 };
+
+Server server(80);
+
+void setup()
+{
+  Client client(255);
+  Ethernet.begin(mac, ip);
+  Serial.begin(9600);
+  server.begin();
+}
+
+void loop()
+{
+  char buf[512];
+  int i = 0;
+  Client client = server.available();
+  if (client) {
+    boolean previous_is_newline = false;
+    while (client.connected()) {
+      if (client.available()) {
+        char c = client.read();
+        if (c == '\n' && previous_is_newline) {
+          buf[i] = 0;
+          client.println("HTTP/1.1 200 OK");
+          client.println("Content-Type: text/html");
+          client.println();
+          client.println("<pre>");
+          client.println(buf);
+          client.println("</pre>");
+          break;
+        }
+        if (i < 511)
+          buf[i++] = c;
+        if (c == '\n')
+          previous_is_newline = true;
+        else if (c != '\r')
+          previous_is_newline = false;
+      }
+    }
+    client.stop();
+  }
+}
diff --git a/libraries/Ethernet/examples/web_client/web_client.pde b/libraries/Ethernet/examples/web_client/web_client.pde
new file mode 100644
index 0000000..74a6094
--- /dev/null
+++ b/libraries/Ethernet/examples/web_client/web_client.pde
@@ -0,0 +1,41 @@
+#include <Ethernet.h>
+
+byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
+byte ip[] = { 10, 0, 0, 177 };
+byte server[] = { 64, 233, 187, 99 }; // Google
+
+Client client(server, 80);
+
+void setup()
+{
+  Ethernet.begin(mac, ip);
+  Serial.begin(9600);
+  
+  delay(1000);
+  
+  Serial.println("connecting...");
+  
+  if (client.connect()) {
+    Serial.println("connected");
+    client.println("GET /search?q=arduino HTTP/1.0");
+    client.println();
+  } else {
+    Serial.println("connection failed");
+  }
+}
+
+void loop()
+{
+  if (client.available()) {
+    char c = client.read();
+    Serial.print(c);
+  }
+  
+  if (!client.connected()) {
+    Serial.println();
+    Serial.println("disconnecting.");
+    client.stop();
+    for(;;)
+      ;
+  }
+}
diff --git a/libraries/Ethernet/utility/socket.c b/libraries/Ethernet/utility/socket.c
new file mode 100755
index 0000000..88c81a8
--- /dev/null
+++ b/libraries/Ethernet/utility/socket.c
@@ -0,0 +1,558 @@
+/*
+*
+@file		socket.c
+@brief	setting chip register for socket
+		last update : 2008. Jan
+*
+*/
+
+#include "types.h"
+#include "w5100.h"
+#include "socket.h"
+
+static uint16 local_port;
+
+
+/**
+@brief	This Socket function initialize the channel in perticular mode, and set the port and wait for W5100 done it.
+@return 	1 for sucess else 0.
+*/  
+uint8 socket(
+	SOCKET s, 		/**< for socket number */
+	uint8 protocol, 	/**< for socket protocol */
+	uint16 port, 		/**< the source port for the socket */
+	uint8 flag		/**< the option for the socket */
+	)
+{
+	uint8 ret;
+#ifdef __DEF_IINCHIP_DBG__
+	printf("socket()\r\n");
+#endif
+	if ((protocol == Sn_MR_TCP) || (protocol == Sn_MR_UDP) || (protocol == Sn_MR_IPRAW) || (protocol == Sn_MR_MACRAW) || (protocol == Sn_MR_PPPOE))
+	{
+		close(s);
+		IINCHIP_WRITE(Sn_MR(s),protocol | flag);
+		if (port != 0) {
+			IINCHIP_WRITE(Sn_PORT0(s),(uint8)((port & 0xff00) >> 8));
+			IINCHIP_WRITE((Sn_PORT0(s) + 1),(uint8)(port & 0x00ff));
+		} else {
+			local_port++; // if don't set the source port, set local_port number.
+			IINCHIP_WRITE(Sn_PORT0(s),(uint8)((local_port & 0xff00) >> 8));
+			IINCHIP_WRITE((Sn_PORT0(s) + 1),(uint8)(local_port & 0x00ff));
+		}
+		IINCHIP_WRITE(Sn_CR(s),Sn_CR_OPEN); // run sockinit Sn_CR
+
+		/* +20071122[chungs]:wait to process the command... */
+		while( IINCHIP_READ(Sn_CR(s)) ) 
+			;
+		/* ------- */
+		ret = 1;
+	}
+	else
+	{
+		ret = 0;
+	}
+#ifdef __DEF_IINCHIP_DBG__
+	printf("Sn_SR = %.2x , Protocol = %.2x\r\n", IINCHIP_READ(Sn_SR(s)), IINCHIP_READ(Sn_MR(s)));
+#endif
+	return ret;
+}
+
+
+/**
+@brief	This function close the socket and parameter is "s" which represent the socket number
+*/ 
+void close(SOCKET s)
+{
+#ifdef __DEF_IINCHIP_DBG__
+	printf("close()\r\n");
+#endif
+	
+	IINCHIP_WRITE(Sn_CR(s),Sn_CR_CLOSE);
+
+	/* +20071122[chungs]:wait to process the command... */
+	while( IINCHIP_READ(Sn_CR(s)) ) 
+		;
+	/* ------- */
+
+	/* +2008.01 [hwkim]: clear interrupt */	
+	#ifdef __DEF_IINCHIP_INT__
+      /* m2008.01 [bj] : all clear */
+	       putISR(s, 0x00);
+	#else
+      /* m2008.01 [bj] : all clear */
+		IINCHIP_WRITE(Sn_IR(s), 0xFF);
+	#endif
+}
+
+
+/**
+@brief	This function established  the connection for the channel in passive (server) mode. This function waits for the request from the peer.
+@return	1 for success else 0.
+*/ 
+uint8 listen(
+	SOCKET s	/**< the socket number */
+	)
+{
+	uint8 ret;
+#ifdef __DEF_IINCHIP_DBG__
+	printf("listen()\r\n");
+#endif
+	if (IINCHIP_READ(Sn_SR(s)) == SOCK_INIT)
+	{
+		IINCHIP_WRITE(Sn_CR(s),Sn_CR_LISTEN);
+		/* +20071122[chungs]:wait to process the command... */
+		while( IINCHIP_READ(Sn_CR(s)) ) 
+			;
+		/* ------- */
+		ret = 1;
+	}
+	else
+	{
+		ret = 0;
+#ifdef __DEF_IINCHIP_DBG__
+	printf("Fail[invalid ip,port]\r\n");
+#endif
+	}
+	return ret;
+}
+
+
+/**
+@brief	This function established  the connection for the channel in Active (client) mode. 
+		This function waits for the untill the connection is established.
+		
+@return	1 for success else 0.
+*/ 
+uint8 connect(SOCKET s, uint8 * addr, uint16 port)
+{
+	uint8 ret;
+#ifdef __DEF_IINCHIP_DBG__
+	printf("connect()\r\n");
+#endif
+	if 
+		(
+			((addr[0] == 0xFF) && (addr[1] == 0xFF) && (addr[2] == 0xFF) && (addr[3] == 0xFF)) ||
+		 	((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && (addr[3] == 0x00)) ||
+		 	(port == 0x00) 
+		) 
+ 	{
+ 		ret = 0;
+#ifdef __DEF_IINCHIP_DBG__
+	printf("Fail[invalid ip,port]\r\n");
+#endif
+	}
+	else
+	{
+		ret = 1;
+		// set destination IP
+		IINCHIP_WRITE(Sn_DIPR0(s),addr[0]);
+		IINCHIP_WRITE((Sn_DIPR0(s) + 1),addr[1]);
+		IINCHIP_WRITE((Sn_DIPR0(s) + 2),addr[2]);
+		IINCHIP_WRITE((Sn_DIPR0(s) + 3),addr[3]);
+		IINCHIP_WRITE(Sn_DPORT0(s),(uint8)((port & 0xff00) >> 8));
+		IINCHIP_WRITE((Sn_DPORT0(s) + 1),(uint8)(port & 0x00ff));
+		IINCHIP_WRITE(Sn_CR(s),Sn_CR_CONNECT);
+      /* m2008.01 [bj] :  wait for completion */
+		while ( IINCHIP_READ(Sn_CR(s)) ) ;
+
+	}
+
+	return ret;
+}
+
+
+
+/**
+@brief	This function used for disconnect the socket and parameter is "s" which represent the socket number
+@return	1 for success else 0.
+*/ 
+void disconnect(SOCKET s)
+{
+#ifdef __DEF_IINCHIP_DBG__
+	printf("disconnect()\r\n");
+#endif
+	IINCHIP_WRITE(Sn_CR(s),Sn_CR_DISCON);
+
+	/* +20071122[chungs]:wait to process the command... */
+	while( IINCHIP_READ(Sn_CR(s)) ) 
+		;
+	/* ------- */
+}
+
+
+/**
+@brief	This function used to send the data in TCP mode
+@return	1 for success else 0.
+*/ 
+uint16 send(
+	SOCKET s, 		/**< the socket index */
+	const uint8 * buf, 	/**< a pointer to data */
+	uint16 len		/**< the data size to be send */
+	)
+{
+	uint8 status=0;
+	uint16 ret=0;
+	uint16 freesize=0;
+#ifdef __DEF_IINCHIP_DBG__
+	printf("send()\r\n");
+#endif
+
+   if (len > getIINCHIP_TxMAX(s)) ret = getIINCHIP_TxMAX(s); // check size not to exceed MAX size.
+   else ret = len;
+
+   // if freebuf is available, start.
+	do 
+	{
+		freesize = getSn_TX_FSR(s);
+		status = IINCHIP_READ(Sn_SR(s));
+		if ((status != SOCK_ESTABLISHED) && (status != SOCK_CLOSE_WAIT))
+		{
+			ret = 0; 
+			break;
+		}
+#ifdef __DEF_IINCHIP_DBG__
+		printf("socket %d freesize(%d) empty or error\r\n", s, freesize);
+#endif
+	} while (freesize < ret);
+
+      // copy data
+	send_data_processing(s, (uint8 *)buf, ret);
+	IINCHIP_WRITE(Sn_CR(s),Sn_CR_SEND);
+
+	/* +20071122[chungs]:wait to process the command... */
+	while( IINCHIP_READ(Sn_CR(s)) ) 
+		;
+	/* ------- */
+
+/* +2008.01 bj */	
+#ifdef __DEF_IINCHIP_INT__
+	while ( (getISR(s) & Sn_IR_SEND_OK) != Sn_IR_SEND_OK ) 
+#else
+	while ( (IINCHIP_READ(Sn_IR(s)) & Sn_IR_SEND_OK) != Sn_IR_SEND_OK ) 
+#endif
+	{
+		/* m2008.01 [bj] : reduce code */
+		if ( IINCHIP_READ(Sn_SR(s)) == SOCK_CLOSED )
+		{
+#ifdef __DEF_IINCHIP_DBG__
+			printf("SOCK_CLOSED.\r\n");
+#endif
+			close(s);
+			return 0;
+		}
+  	}
+/* +2008.01 bj */	
+#ifdef __DEF_IINCHIP_INT__
+  	putISR(s, getISR(s) & (~Sn_IR_SEND_OK));
+#else
+	IINCHIP_WRITE(Sn_IR(s), Sn_IR_SEND_OK);
+#endif
+  	return ret;
+}
+
+
+/**
+@brief	This function is an application I/F function which is used to receive the data in TCP mode.
+		It continues to wait for data as much as the application wants to receive.
+		
+@return	received data size for success else -1.
+*/ 
+uint16 recv(
+	SOCKET s, 	/**< socket index */
+	uint8 * buf, 	/**< a pointer to copy the data to be received */
+	uint16 len	/**< the data size to be read */
+	)
+{
+	uint16 ret=0;
+#ifdef __DEF_IINCHIP_DBG__
+	printf("recv()\r\n");
+#endif
+
+
+	if ( len > 0 )
+	{
+		recv_data_processing(s, buf, len);
+		IINCHIP_WRITE(Sn_CR(s),Sn_CR_RECV);
+
+		/* +20071122[chungs]:wait to process the command... */
+		while( IINCHIP_READ(Sn_CR(s)) ) 
+			;
+		/* ------- */
+		ret = len;
+	}
+	return ret;
+}
+
+
+/**
+@brief	This function is an application I/F function which is used to send the data for other then TCP mode. 
+		Unlike TCP transmission, The peer's destination address and the port is needed.
+		
+@return	This function return send data size for success else -1.
+*/ 
+uint16 sendto(
+	SOCKET s, 		/**< socket index */
+	const uint8 * buf, 	/**< a pointer to the data */
+	uint16 len, 		/**< the data size to send */
+	uint8 * addr, 		/**< the peer's Destination IP address */
+	uint16 port		/**< the peer's destination port number */
+	)
+{
+//	uint8 status=0;
+//	uint8 isr=0;
+	uint16 ret=0;
+	
+#ifdef __DEF_IINCHIP_DBG__
+	printf("sendto()\r\n");
+#endif
+   if (len > getIINCHIP_TxMAX(s)) ret = getIINCHIP_TxMAX(s); // check size not to exceed MAX size.
+   else ret = len;
+
+	if
+		(
+		 	((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && (addr[3] == 0x00)) ||
+		 	((port == 0x00)) ||(ret == 0)
+		) 
+ 	{
+ 	   /* +2008.01 [bj] : added return value */
+ 	   ret = 0;
+#ifdef __DEF_IINCHIP_DBG__
+	printf("%d Fail[%.2x.%.2x.%.2x.%.2x, %.d, %d]\r\n",s, addr[0], addr[1], addr[2], addr[3] , port, len);
+	printf("Fail[invalid ip,port]\r\n");
+#endif
+	}
+	else
+	{
+		IINCHIP_WRITE(Sn_DIPR0(s),addr[0]);
+		IINCHIP_WRITE((Sn_DIPR0(s) + 1),addr[1]);
+		IINCHIP_WRITE((Sn_DIPR0(s) + 2),addr[2]);
+		IINCHIP_WRITE((Sn_DIPR0(s) + 3),addr[3]);
+		IINCHIP_WRITE(Sn_DPORT0(s),(uint8)((port & 0xff00) >> 8));
+		IINCHIP_WRITE((Sn_DPORT0(s) + 1),(uint8)(port & 0x00ff));
+
+  		// copy data
+  		send_data_processing(s, (uint8 *)buf, ret);
+		IINCHIP_WRITE(Sn_CR(s),Sn_CR_SEND);
+
+		/* +20071122[chungs]:wait to process the command... */
+		while( IINCHIP_READ(Sn_CR(s)) ) 
+			;
+		/* ------- */
+		
+/* +2008.01 bj */	
+#ifdef __DEF_IINCHIP_INT__
+   	while ( (getISR(s) & Sn_IR_SEND_OK) != Sn_IR_SEND_OK ) 
+#else
+	   while ( (IINCHIP_READ(Sn_IR(s)) & Sn_IR_SEND_OK) != Sn_IR_SEND_OK ) 
+#endif
+		{
+#ifdef __DEF_IINCHIP_INT__
+      	if (getISR(s) & Sn_IR_TIMEOUT)
+#else
+	      if (IINCHIP_READ(Sn_IR(s)) & Sn_IR_TIMEOUT)
+#endif
+			{
+#ifdef __DEF_IINCHIP_DBG__
+				printf("send fail.\r\n");
+#endif
+/* +2008.01 [bj]: clear interrupt */
+#ifdef __DEF_IINCHIP_INT__
+         	putISR(s, getISR(s) & ~(Sn_IR_SEND_OK | Sn_IR_TIMEOUT));  /* clear SEND_OK & TIMEOUT */
+#else
+         	IINCHIP_WRITE(Sn_IR(s), (Sn_IR_SEND_OK | Sn_IR_TIMEOUT)); /* clear SEND_OK & TIMEOUT */
+#endif
+			return 0;
+			}
+		}
+
+/* +2008.01 bj */	
+#ifdef __DEF_IINCHIP_INT__
+     	putISR(s, getISR(s) & (~Sn_IR_SEND_OK));
+#else
+	   IINCHIP_WRITE(Sn_IR(s), Sn_IR_SEND_OK);
+#endif
+
+	}
+	return ret;
+}
+
+
+/**
+@brief	This function is an application I/F function which is used to receive the data in other then
+	TCP mode. This function is used to receive UDP, IP_RAW and MAC_RAW mode, and handle the header as well. 
+	
+@return	This function return received data size for success else -1.
+*/ 
+uint16 recvfrom(
+	SOCKET s, 	/**< the socket number */
+	uint8 * buf, 	/**< a pointer to copy the data to be received */
+	uint16 len, 	/**< the data size to read */
+	uint8 * addr, 	/**< a pointer to store the peer's IP address */
+	uint16 *port	/**< a pointer to store the peer's port number. */
+	)
+{
+	uint8 head[8];
+	uint16 data_len=0;
+	uint16 ptr=0;
+#ifdef __DEF_IINCHIP_DBG__
+	printf("recvfrom()\r\n");
+#endif
+
+	if ( len > 0 )
+	{
+   	ptr = IINCHIP_READ(Sn_RX_RD0(s));
+   	ptr = ((ptr & 0x00ff) << 8) + IINCHIP_READ(Sn_RX_RD0(s) + 1);
+#ifdef __DEF_IINCHIP_DBG__
+   	printf("ISR_RX: rd_ptr : %.4x\r\n", ptr);
+#endif
+   	switch (IINCHIP_READ(Sn_MR(s)) & 0x07)
+   	{
+   	case Sn_MR_UDP :
+   			read_data(s, (uint8 *)ptr, head, 0x08);
+   			ptr += 8;
+   			// read peer's IP address, port number.
+    			addr[0] = head[0];
+   			addr[1] = head[1];
+   			addr[2] = head[2];
+   			addr[3] = head[3];
+   			*port = head[4];
+   			*port = (*port << 8) + head[5];
+   			data_len = head[6];
+   			data_len = (data_len << 8) + head[7];
+   			
+#ifdef __DEF_IINCHIP_DBG__
+   			printf("UDP msg arrived\r\n");
+   			printf("source Port : %d\r\n", *port);
+   			printf("source IP : %d.%d.%d.%d\r\n", addr[0], addr[1], addr[2], addr[3]);
+#endif
+
+			read_data(s, (uint8 *)ptr, buf, data_len); // data copy.
+			ptr += data_len;
+
+			IINCHIP_WRITE(Sn_RX_RD0(s),(uint8)((ptr & 0xff00) >> 8));
+			IINCHIP_WRITE((Sn_RX_RD0(s) + 1),(uint8)(ptr & 0x00ff));
+   			break;
+   
+   	case Sn_MR_IPRAW :
+   			read_data(s, (uint8 *)ptr, head, 0x06);
+   			ptr += 6;
+   
+   			addr[0] = head[0];
+   			addr[1] = head[1];
+   			addr[2] = head[2];
+   			addr[3] = head[3];
+   			data_len = head[4];
+   			data_len = (data_len << 8) + head[5];
+   	
+#ifdef __DEF_IINCHIP_DBG__
+   			printf("IP RAW msg arrived\r\n");
+   			printf("source IP : %d.%d.%d.%d\r\n", addr[0], addr[1], addr[2], addr[3]);
+#endif
+			read_data(s, (uint8 *)ptr, buf, data_len); // data copy.
+			ptr += data_len;
+
+			IINCHIP_WRITE(Sn_RX_RD0(s),(uint8)((ptr & 0xff00) >> 8));
+			IINCHIP_WRITE((Sn_RX_RD0(s) + 1),(uint8)(ptr & 0x00ff));
+   			break;
+   	case Sn_MR_MACRAW :
+   			read_data(s,(uint8*)ptr,head,2);
+   			ptr+=2;
+   			data_len = head[0];
+   			data_len = (data_len<<8) + head[1] - 2;
+
+   			read_data(s,(uint8*) ptr,buf,data_len);
+   			ptr += data_len;
+   			IINCHIP_WRITE(Sn_RX_RD0(s),(uint8)((ptr & 0xff00) >> 8));
+   			IINCHIP_WRITE((Sn_RX_RD0(s) + 1),(uint8)(ptr & 0x00ff));
+   			
+#ifdef __DEF_IINCHIP_DGB__
+			printf("MAC RAW msg arrived\r\n");
+			printf("dest mac=%.2X.%.2X.%.2X.%.2X.%.2X.%.2X\r\n",buf[0],buf[1],buf[2],buf[3],buf[4],buf[5]);
+			printf("src  mac=%.2X.%.2X.%.2X.%.2X.%.2X.%.2X\r\n",buf[6],buf[7],buf[8],buf[9],buf[10],buf[11]);
+			printf("type    =%.2X%.2X\r\n",buf[12],buf[13]); 
+#endif			
+			break;
+
+   	default :
+   			break;
+   	}
+		IINCHIP_WRITE(Sn_CR(s),Sn_CR_RECV);
+
+		/* +20071122[chungs]:wait to process the command... */
+		while( IINCHIP_READ(Sn_CR(s)) ) 
+			;
+		/* ------- */
+	}
+#ifdef __DEF_IINCHIP_DBG__
+	printf("recvfrom() end ..\r\n");
+#endif
+ 	return data_len;
+}
+
+
+uint16 igmpsend(SOCKET s, const uint8 * buf, uint16 len)
+{
+	uint8 status=0;
+//	uint8 isr=0;
+	uint16 ret=0;
+	
+#ifdef __DEF_IINCHIP_DBG__
+	printf("igmpsend()\r\n");
+#endif
+   if (len > getIINCHIP_TxMAX(s)) ret = getIINCHIP_TxMAX(s); // check size not to exceed MAX size.
+   else ret = len;
+
+	if	(ret == 0) 
+ 	{
+ 	   ;
+#ifdef __DEF_IINCHIP_DBG__
+	printf("%d Fail[%d]\r\n",len);
+#endif
+	}
+	else
+	{
+		// copy data
+		send_data_processing(s, (uint8 *)buf, ret);
+		IINCHIP_WRITE(Sn_CR(s),Sn_CR_SEND);
+/* +2008.01 bj */	
+		while( IINCHIP_READ(Sn_CR(s)) ) 
+			;
+/* ------- */
+		
+/* +2008.01 bj */	
+#ifdef __DEF_IINCHIP_INT__
+   	while ( (getISR(s) & Sn_IR_SEND_OK) != Sn_IR_SEND_OK ) 
+#else
+	   while ( (IINCHIP_READ(Sn_IR(s)) & Sn_IR_SEND_OK) != Sn_IR_SEND_OK ) 
+#endif
+		{
+			status = IINCHIP_READ(Sn_SR(s));
+#ifdef __DEF_IINCHIP_INT__
+      	if (getISR(s) & Sn_IR_TIMEOUT)
+#else
+	      if (IINCHIP_READ(Sn_IR(s)) & Sn_IR_TIMEOUT)
+#endif
+			{
+#ifdef __DEF_IINCHIP_DBG__
+				printf("igmpsend fail.\r\n");
+#endif
+			   /* in case of igmp, if send fails, then socket closed */
+			   /* if you want change, remove this code. */
+			   close(s);
+			   /* ----- */
+			   
+				return 0;
+			}
+		}
+
+/* +2008.01 bj */	
+#ifdef __DEF_IINCHIP_INT__
+     	putISR(s, getISR(s) & (~Sn_IR_SEND_OK));
+#else
+	   IINCHIP_WRITE(Sn_IR(s), Sn_IR_SEND_OK);
+#endif
+   }
+	return ret;
+}
+
diff --git a/libraries/Ethernet/utility/socket.h b/libraries/Ethernet/utility/socket.h
new file mode 100755
index 0000000..a5cce42
--- /dev/null
+++ b/libraries/Ethernet/utility/socket.h
@@ -0,0 +1,23 @@
+/*
+*
+@file		socket.h
+@brief	define function of socket API 
+*
+*/
+
+#ifndef	_SOCKET_H_
+#define	_SOCKET_H_
+
+extern uint8 socket(SOCKET s, uint8 protocol, uint16 port, uint8 flag); // Opens a socket(TCP or UDP or IP_RAW mode)
+extern void close(SOCKET s); // Close socket
+extern uint8 connect(SOCKET s, uint8 * addr, uint16 port); // Establish TCP connection (Active connection)
+extern void disconnect(SOCKET s); // disconnect the connection
+extern uint8 listen(SOCKET s);	// Establish TCP connection (Passive connection)
+extern uint16 send(SOCKET s, const uint8 * buf, uint16 len); // Send data (TCP)
+extern uint16 recv(SOCKET s, uint8 * buf, uint16 len);	// Receive data (TCP)
+extern uint16 sendto(SOCKET s, const uint8 * buf, uint16 len, uint8 * addr, uint16 port); // Send data (UDP/IP RAW)
+extern uint16 recvfrom(SOCKET s, uint8 * buf, uint16 len, uint8 * addr, uint16  *port); // Receive data (UDP/IP RAW)
+
+extern uint16 igmpsend(SOCKET s, const uint8 * buf, uint16 len);
+#endif
+/* _SOCKET_H_ */
diff --git a/libraries/Ethernet/utility/spi.h b/libraries/Ethernet/utility/spi.h
new file mode 100755
index 0000000..0bb30ba
--- /dev/null
+++ b/libraries/Ethernet/utility/spi.h
@@ -0,0 +1,58 @@
+//-----------------------------------------------------------------------------
+//AVR Mega168 SPI HAL
+#define BIT0							0x01
+#define BIT1							0x02
+#define BIT2							0x04
+#define BIT3							0x08
+#define BIT4							0x10
+#define BIT5							0x20
+#define BIT6							0x40
+#define BIT7							0x80
+
+#define SPI0_SS_BIT						BIT2
+#define SPI0_SS_DDR						DDRB
+#define SPI0_SS_PORT					PORTB
+
+#define SPI0_SCLK_BIT					BIT5
+#define SPI0_SCLK_DDR					DDRB
+#define SPI0_SCLK_PORT					PORTB
+
+#define	SPI0_MOSI_BIT					BIT3
+#define SPI0_MOSI_DDR					DDRB
+#define SPI0_MOSI_PORT					PORTB
+
+#define	SPI0_MISO_BIT					BIT4
+#define SPI0_MISO_DDR					DDRB
+#define SPI0_MISO_PORT					PORTB
+
+
+#define SPI0_WaitForReceive()				
+#define SPI0_RxData()	 				(SPDR)
+
+#define SPI0_TxData(Data)				(SPDR = Data)
+#define SPI0_WaitForSend()				while( (SPSR & 0x80)==0x00 )
+
+#define SPI0_SendByte(Data)				SPI0_TxData(Data);SPI0_WaitForSend()
+#define SPI0_RecvBute()					SPI0_RxData()
+
+// PB4(MISO), PB3(MOSI), PB5(SCK), PB2(/SS)         // CS=1, waiting for SPI start // SPI mode 0, 4MHz
+#define SPI0_Init()						DDRB  |= SPI0_SS_BIT|SPI0_SCLK_BIT|SPI0_MOSI_BIT;\
+										PORTB = SPI0_SS_BIT;\
+										SPCR  = 0x50  
+//-----------------------------------------------------------------------------
+
+//-----------------------------------------------------------------------------
+//IInChip SPI HAL
+#define IINCHIP_SpiInit					SPI0_Init
+#define IINCHIP_SpiSendData				SPI0_SendByte	
+#define IINCHIP_SpiRecvData				SPI0_RxData
+
+
+#define IINCHIP_CS_BIT					BIT2
+#define IINCHIP_CS_DDR					DDRB
+#define IINCHIP_CS_PORT					PORTB
+
+#define IINCHIP_CSInit()					(IINCHIP_CS_DDR |= IINCHIP_CS_BIT)
+#define IINCHIP_CSon()					(IINCHIP_CS_PORT |= IINCHIP_CS_BIT)
+#define IINCHIP_CSoff()					(IINCHIP_CS_PORT &= ~IINCHIP_CS_BIT)
+//-----------------------------------------------------------------------------
diff --git a/libraries/Ethernet/utility/types.h b/libraries/Ethernet/utility/types.h
new file mode 100755
index 0000000..6c350da
--- /dev/null
+++ b/libraries/Ethernet/utility/types.h
@@ -0,0 +1,165 @@
+/*
+*
+@file		type.h
+*
+*/
+
+#ifndef _TYPE_H_
+#define _TYPE_H_
+
+
+/***************************************************
+ * attribute for mcu ( types, ... ) 
+ ***************************************************/
+//#include "mcu_define.h"
+#define __MCU_AVR__	1
+#define __MCU_TYPE__	__MCU_AVR__
+
+//---- Refer "Rom File Maker Manual Vx.x.pdf"
+#include <avr/pgmspace.h>
+
+#define	_ENDIAN_LITTLE_	0	/**<  This must be defined if system is little-endian alignment */
+#define	_ENDIAN_BIG_		1
+#define 	SYSTEM_ENDIAN		_ENDIAN_LITTLE_
+
+#define	MAX_SOCK_NUM		4	/**< Maxmium number of socket  */
+#define	CLK_CPU			F_CPU		/**< 8Mhz(for serial) */
+
+/* ## __DEF_IINCHIP_xxx__ : define option for iinchip driver *****************/
+//#define __DEF_IINCHIP_DBG__ /* involve debug code in driver (socket.c) */
+//#define __DEF_IINCHIP_INT__ /**< involve interrupt service routine (socket.c) */
+//#define __DEF_IINCHIP_PPP__ /* involve pppoe routine (socket.c) */
+                            /* If it is defined, the source files(md5.h,md5.c) must be included in your project.
+                               Otherwize, the source files must be removed in your project. */
+
+#define __DEF_IINCHIP_DIRECT_MODE__ 1
+#define __DEF_IINCHIP_INDIRECT_MODE__ 2
+#define __DEF_IINCHIP_SPI_MODE__ 3
+
+//#define __DEF_IINCHIP_BUS__ __DEF_IINCHIP_DIRECT_MODE__
+//#define __DEF_IINCHIP_BUS__ __DEF_IINCHIP_INDIRECT_MODE__
+#define __DEF_IINCHIP_BUS__ __DEF_IINCHIP_SPI_MODE__ /*Enable SPI_mode*/
+
+
+/**
+@brief	 __DEF_IINCHIP_MAP_xxx__ : define memory map for iinchip 
+*/
+#define __DEF_IINCHIP_MAP_BASE__ 0x8000
+#if (__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_DIRECT_MODE__)
+ #define COMMON_BASE __DEF_IINCHIP_MAP_BASE__
+#else
+ #define COMMON_BASE 0x0000
+#endif
+#define __DEF_IINCHIP_MAP_TXBUF__ (COMMON_BASE + 0x4000) /* Internal Tx buffer address of the iinchip */
+#define __DEF_IINCHIP_MAP_RXBUF__ (COMMON_BASE + 0x6000) /* Internal Rx buffer address of the iinchip */
+
+
+#if (__MCU_TYPE__ == __MCU_AVR__)
+   #ifdef __DEF_IINCHIP_INT__
+      // iinchip use external interrupt 4
+      #define IINCHIP_ISR_DISABLE()	(EIMSK &= ~(0x10))
+      #define IINCHIP_ISR_ENABLE()	(EIMSK |= 0x10)
+      #define IINCHIP_ISR_GET(X)		(X = EIMSK)
+      #define IINCHIP_ISR_SET(X)		(EIMSK = X)
+   #else
+      #define IINCHIP_ISR_DISABLE()
+      #define IINCHIP_ISR_ENABLE()	
+      #define IINCHIP_ISR_GET(X)
+      #define IINCHIP_ISR_SET(X)
+   #endif
+#else
+#error "unknown MCU type"
+#endif
+
+#ifndef NULL
+#define NULL		((void *) 0)
+#endif
+
+//typedef enum { false, true } bool;
+
+#ifndef _SIZE_T
+#define _SIZE_T
+typedef unsigned int size_t;
+#endif
+
+/**
+ * The 8-bit signed data type.
+ */
+typedef char int8;
+/**
+ * The volatile 8-bit signed data type.
+ */
+typedef volatile char vint8;
+/**
+ * The 8-bit unsigned data type.
+ */
+typedef unsigned char uint8;
+/**
+ * The volatile 8-bit unsigned data type.
+ */
+typedef volatile unsigned char vuint8;
+
+/**
+ * The 16-bit signed data type.
+ */
+typedef int int16;
+/**
+ * The volatile 16-bit signed data type.
+ */
+typedef volatile int vint16;
+/**
+ * The 16-bit unsigned data type.
+ */
+typedef unsigned int uint16;
+/**
+ * The volatile 16-bit unsigned data type.
+ */
+typedef volatile unsigned int vuint16;
+/**
+ * The 32-bit signed data type.
+ */
+typedef long int32;
+/**
+ * The volatile 32-bit signed data type.
+ */
+typedef volatile long vint32;
+/**
+ * The 32-bit unsigned data type.
+ */
+typedef unsigned long uint32;
+/**
+ * The volatile 32-bit unsigned data type.
+ */
+typedef volatile unsigned long vuint32;
+
+/* bsd */
+typedef uint8			u_char;		/**< 8-bit value */
+typedef uint8 			SOCKET;
+typedef uint16			u_short;	/**< 16-bit value */
+typedef uint16			u_int;		/**< 16-bit value */
+typedef uint32			u_long;		/**< 32-bit value */
+
+typedef union _un_l2cval {
+	u_long	lVal;
+	u_char	cVal[4];
+}un_l2cval;
+
+typedef union _un_i2cval {
+	u_int	iVal;
+	u_char	cVal[2];
+}un_i2cval;
+
+
+/** global define */
+#define FW_VERSION		0x01010000	/* System F/W Version : 1.1.0.0	*/
+#define HW_VERSION	       0x01000000
+
+
+#define TX_RX_MAX_BUF_SIZE	2048
+#define TX_BUF	0x1100
+#define RX_BUF	(TX_BUF+TX_RX_MAX_BUF_SIZE)
+
+#define UART_DEVICE_CNT		1	/**< UART device number */
+/* #define SUPPORT_UART_ONE */
+
+#endif		/* _TYPE_H_ */
diff --git a/libraries/Ethernet/utility/w5100.c b/libraries/Ethernet/utility/w5100.c
new file mode 100755
index 0000000..7d0f55a
--- /dev/null
+++ b/libraries/Ethernet/utility/w5100.c
@@ -0,0 +1,1302 @@
+/*
+ * (c)COPYRIGHT
+ * ALL RIGHT RESERVED
+ *
+ * FileName : w5100.c
+ * Revision History :
+ * ----------	-------		------------------------------------------------
+ * 	Date			version	  	Description
+ * ----------	-------  	------------------------------------------------
+ * 01/25/2007	1.1			Bug is Fixed in the Indirect Mode 
+ *							: Memory mapping error	
+ * ----------	-------		------------------------------------------------
+ * 01/08/2008	1.2			Modification of Socket Command Part
+ *							: Check if the appropriately performed after writing Sn_CR
+ *
+ *							Modification of SPI Part
+ *							: SPI code changed by adding 'spi.h'.
+ *							: Change control type for SPI port from byte to bit.
+ * ----------	-------		------------------------------------------------
+ * 01/15/2008	1.3			Bug is Fixed in the pppinit() fuction.
+ *							: do not clear interrupt value, so fixed.
+ *
+ *		                   			Modification of ISR
+ *                   				: Do not exit ISR, if there is interrupt.
+ * ----------	-------		------------------------------------------------
+ * 03/21/2008	1.4			Modification of SetMR() function
+ *                   				: Use IINCHIP_WRITE() function in Direct or SPI mode.
+ * ----------	-------		------------------------------------------------
+ */
+#include <stdio.h>
+#include <string.h>
+
+#include <avr/interrupt.h>
+// #include <avr/io.h> 
+   
+#include "types.h"
+#include "socket.h"
+#include "w5100.h"
+
+
+
+#ifdef __DEF_IINCHIP_PPP__
+   #include "md5.h"
+#endif
+
+
+#if (__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_SPI_MODE__)
+#include "spi.h"		//+2007113[jhpark]
+#endif
+
+static uint8 I_STATUS[MAX_SOCK_NUM];
+static uint16 SMASK[MAX_SOCK_NUM]; /**< Variable for Tx buffer MASK in each channel */
+static uint16 RMASK[MAX_SOCK_NUM]; /**< Variable for Rx buffer MASK in each channel */
+static uint16 SSIZE[MAX_SOCK_NUM]; /**< Max Tx buffer size by each channel */
+static uint16 RSIZE[MAX_SOCK_NUM]; /**< Max Rx buffer size by each channel */
+static uint16 SBUFBASEADDRESS[MAX_SOCK_NUM]; /**< Tx buffer base address by each channel */
+static uint16 RBUFBASEADDRESS[MAX_SOCK_NUM]; /**< Rx buffer base address by each channel */
+
+uint8 getISR(uint8 s)
+{
+	return I_STATUS[s];
+}
+
+void putISR(uint8 s, uint8 val)
+{
+   I_STATUS[s] = val;
+}
+
+uint16 getIINCHIP_RxMAX(uint8 s)
+{
+   return RSIZE[s];
+}
+uint16 getIINCHIP_TxMAX(uint8 s)
+{
+   return SSIZE[s];
+}
+uint16 getIINCHIP_RxMASK(uint8 s)
+{
+   return RMASK[s];
+}
+uint16 getIINCHIP_TxMASK(uint8 s)
+{
+   return SMASK[s];
+}
+uint16 getIINCHIP_RxBASE(uint8 s)
+{
+   return RBUFBASEADDRESS[s];
+}
+uint16 getIINCHIP_TxBASE(uint8 s)
+{
+   return SBUFBASEADDRESS[s];
+}
+
+ /**
+@brief	This function writes the data into W5100 registers.
+*/
+uint8 IINCHIP_WRITE(uint16 addr,uint8 data)
+{
+// DIRECT MODE I/F
+#if (__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_DIRECT_MODE__)
+	IINCHIP_ISR_DISABLE();
+	*((vuint8*)(addr)) = data;
+	IINCHIP_ISR_ENABLE();
+#elif(__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_INDIRECT_MODE__)	/* INDIRECT MODE I/F */
+	   IINCHIP_ISR_DISABLE();
+	   *((vuint8*)IDM_AR0) = (uint8)((addr & 0xFF00) >> 8);
+	   *((vuint8*)IDM_AR1) = (uint8)(addr & 0x00FF);
+	   *((vuint8*)IDM_DR)  = data;
+	   IINCHIP_ISR_ENABLE();
+#elif (__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_SPI_MODE__)
+	   IINCHIP_ISR_DISABLE();
+	IINCHIP_SpiInit();
+	
+	//SPI MODE I/F
+	IINCHIP_CSoff();                             // CS=0, SPI start
+
+	IINCHIP_SpiSendData(0xF0);
+	IINCHIP_SpiSendData((addr & 0xFF00) >> 8);
+	IINCHIP_SpiSendData(addr & 0x00FF);
+	IINCHIP_SpiSendData(data);
+
+	IINCHIP_CSon();    
+
+	   IINCHIP_ISR_ENABLE();   
+#else
+	#error "unknown bus type"
+#endif
+	return 1;
+}
+
+
+/**
+@brief	This function reads the value from W5100 registers.
+*/
+uint8 IINCHIP_READ(uint16 addr)
+{
+	uint8 data;
+
+// DIRECT MODE I/F
+
+#if (__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_DIRECT_MODE__)
+	IINCHIP_ISR_DISABLE();
+	data = *((vuint8*)(addr));
+	IINCHIP_ISR_ENABLE();
+#elif(__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_INDIRECT_MODE__)   
+	   IINCHIP_ISR_DISABLE();
+	   *((vuint8*)IDM_AR0) = (uint8)((addr & 0xFF00) >> 8);
+	   *((vuint8*)IDM_AR1) = (uint8)(addr & 0x00FF);
+	   data = *((vuint8*)IDM_DR);
+	   IINCHIP_ISR_ENABLE();
+   
+#elif (__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_SPI_MODE__)
+	   IINCHIP_ISR_DISABLE();
+	IINCHIP_SpiInit();	
+	IINCHIP_CSoff();                             // CS=0, SPI start
+
+	IINCHIP_SpiSendData(0x0F);
+	IINCHIP_SpiSendData((addr & 0xFF00) >> 8);
+	IINCHIP_SpiSendData(addr & 0x00FF);
+	
+	
+	IINCHIP_SpiSendData(0);
+	data = IINCHIP_SpiRecvData();
+
+	IINCHIP_CSon();                          	// SPI end
+	   IINCHIP_ISR_ENABLE();
+#else
+	#error "unknown bus type"
+#endif
+	return data;
+}
+
+
+/**
+@brief	This function writes into W5100 memory(Buffer)
+*/ 
+uint16 wiz_write_buf(uint16 addr,uint8* buf,uint16 len)
+{
+#if (__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_DIRECT_MODE__)
+	IINCHIP_ISR_DISABLE();
+   	memcpy((uint8 *)addr, buf, len);
+	IINCHIP_ISR_ENABLE();
+#elif (__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_INDIRECT_MODE__)
+	   uint16 idx = 0;
+	   IINCHIP_ISR_DISABLE();
+	   *((vuint8*)IDM_AR0) = (uint8)((addr & 0xFF00) >> 8);
+	   *((vuint8*)IDM_AR1) = (uint8)(addr & 0x00FF);
+	   for (idx = 0; idx < len ; idx++) *((vuint8*)IDM_DR) = buf[idx];
+	   IINCHIP_ISR_ENABLE();
+#elif (__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_SPI_MODE__)
+	uint16 idx = 0;
+	
+	   IINCHIP_ISR_DISABLE();
+	IINCHIP_SpiInit();
+      
+	//SPI MODE I/F
+	for(idx=0;idx<len;idx++)
+	   {
+		IINCHIP_CSoff();                             // CS=0, SPI start 
+
+		IINCHIP_SpiSendData(0xF0);
+		IINCHIP_SpiSendData(((addr+idx) & 0xFF00) >> 8);
+		IINCHIP_SpiSendData((addr+idx) & 0x00FF);
+		IINCHIP_SpiSendData(buf[idx]);
+
+		IINCHIP_CSon();                             // CS=0, SPI end 
+	   }
+
+	   IINCHIP_ISR_ENABLE();	   
+#else
+	#error "unknown bus type"
+#endif
+	return len;
+}
+
+
+/**
+@brief	This function reads into W5100 memory(Buffer)
+*/ 
+uint16 wiz_read_buf(uint16 addr, uint8* buf,uint16 len)
+{
+#if (__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_DIRECT_MODE__)
+	IINCHIP_ISR_DISABLE();
+	memcpy(buf, (uint8 *)addr, len);
+	IINCHIP_ISR_ENABLE();
+#elif(__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_INDIRECT_MODE__)
+	   uint16 idx = 0;
+	   IINCHIP_ISR_DISABLE();
+	   *((vuint8*)IDM_AR0) = (uint8)((addr & 0xFF00) >> 8);
+	   *((vuint8*)IDM_AR1) = (uint8)(addr & 0x00FF);
+	   for (idx = 0; idx < len ; idx++) buf[idx] = *((vuint8*)IDM_DR);
+	   IINCHIP_ISR_ENABLE();
+#elif (__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_SPI_MODE__)
+	uint16 idx = 0;
+	   IINCHIP_ISR_DISABLE();
+
+	IINCHIP_SpiInit();
+   
+	for (idx=0; idx<len; idx++)
+      	   {
+		IINCHIP_CSoff();                             // CS=0, SPI start 
+
+		IINCHIP_SpiSendData(0x0F);
+		IINCHIP_SpiSendData(((addr+idx) & 0xFF00) >> 8);
+		IINCHIP_SpiSendData((addr+idx) & 0x00FF);
+
+
+		IINCHIP_SpiSendData(0);
+		buf[idx] = IINCHIP_SpiRecvData();
+
+		IINCHIP_CSon();                             // CS=0, SPI end 	   
+	   }
+
+	   IINCHIP_ISR_ENABLE();
+#else
+	#error "unknown bus type"
+#endif
+	return len;
+}
+
+
+/**
+@brief	Socket interrupt routine
+*/ 
+#ifdef __DEF_IINCHIP_INT__
+ISR(INT4_vect)
+{
+	uint8 int_val;
+	IINCHIP_ISR_DISABLE();
+	int_val = IINCHIP_READ(IR);
+	
+	/* +200801[bj] process all of interupt */
+   do {
+   /*---*/
+   
+   	if (int_val & IR_CONFLICT)
+   	{
+   		printf("IP conflict : %.2x\r\n", int_val);
+   	}
+   	if (int_val & IR_UNREACH)
+   	{
+   		printf("INT Port Unreachable : %.2x\r\n", int_val);
+   		printf("UIPR0 : %d.%d.%d.%d\r\n", IINCHIP_READ(UIPR0), IINCHIP_READ(UIPR0+1), IINCHIP_READ(UIPR0+2), IINCHIP_READ(UIPR0+3));
+   		printf("UPORT0 : %.2x %.2x\r\n", IINCHIP_READ(UPORT0), IINCHIP_READ(UPORT0+1));
+   	}
+   
+   	/* +200801[bj] interrupt clear */
+   	IINCHIP_WRITE(IR, 0xf0); 
+      /*---*/
+   
+   	if (int_val & IR_SOCK(0))
+   	{
+   	/* +-200801[bj] save interrupt value*/
+   		I_STATUS[0] |= IINCHIP_READ(Sn_IR(0)); // can be come to over two times.
+   		IINCHIP_WRITE(Sn_IR(0), I_STATUS[0]);
+      /*---*/
+   	}
+   	if (int_val & IR_SOCK(1))
+   	{
+   	/* +-200801[bj] save interrupt value*/
+   		I_STATUS[1] |= IINCHIP_READ(Sn_IR(1));
+   		IINCHIP_WRITE(Sn_IR(1), I_STATUS[1]);
+      /*---*/
+   	}
+   	if (int_val & IR_SOCK(2))
+   	{
+   	/* +-200801[bj] save interrupt value*/
+   		I_STATUS[2] |= IINCHIP_READ(Sn_IR(2));
+   		IINCHIP_WRITE(Sn_IR(2), I_STATUS[2]);
+      /*---*/
+   	}
+   	if (int_val & IR_SOCK(3))
+   	{
+   	/* +-200801[bj] save interrupt value*/
+   		I_STATUS[3] |= IINCHIP_READ(Sn_IR(3));
+   		IINCHIP_WRITE(Sn_IR(3), I_STATUS[3]);
+      /*---*/
+   	}
+   
+   	/* +-200801[bj] re-read interrupt value*/
+   	int_val = IINCHIP_READ(IR);
+
+	/* +200801[bj] if exist, contiue to process */
+   } while (int_val != 0x00);
+   /*---*/
+
+	IINCHIP_ISR_ENABLE();
+}
+#endif
+
+/**
+@brief	This function is for resetting of the iinchip. Initializes the iinchip to work in whether DIRECT or INDIRECT mode
+*/ 
+void iinchip_init(void)
+{	
+	setMR( MR_RST );
+#if (__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_INDIRECT_MODE__)
+	setMR( MR_IND | MR_AI );
+#ifdef __DEF_IINCHIP_DBG__	
+	printf("MR value is %d \r\n",IINCHIP_READ(MR));
+#endif	
+#endif
+}
+
+
+/**
+@brief	This function set the transmit & receive buffer size as per the channels is used
+
+Note for TMSR and RMSR bits are as follows\n
+bit 1-0 : memory size of channel #0 \n
+bit 3-2 : memory size of channel #1 \n
+bit 5-4 : memory size of channel #2 \n
+bit 7-6 : memory size of channel #3 \n\n
+Maximum memory size for Tx, Rx in the W5100 is 8K Bytes,\n
+In the range of 8KBytes, the memory size could be allocated dynamically by each channel.\n
+Be attentive to sum of memory size shouldn't exceed 8Kbytes\n
+and to data transmission and receiption from non-allocated channel may cause some problems.\n
+If the 8KBytes memory is already  assigned to centain channel, \n
+other 3 channels couldn't be used, for there's no available memory.\n
+If two 4KBytes memory are assigned to two each channels, \n
+other 2 channels couldn't be used, for there's no available memory.\n
+*/ 
+void sysinit(
+	uint8 tx_size, 	/**< tx_size Tx memory size (00 - 1KByte, 01- 2KBtye, 10 - 4KByte, 11 - 8KByte) */
+	uint8 rx_size		/**< rx_size Rx memory size (00 - 1KByte, 01- 2KBtye, 10 - 4KByte, 11 - 8KByte) */
+	)
+{
+	int16 i;
+	int16 ssum,rsum;
+
+#ifdef __DEF_IINCHIP_DBG__
+	printf("sysinit()\r\n"); 
+#endif
+
+	ssum = 0;
+	rsum = 0;
+	
+	IINCHIP_WRITE(TMSR,tx_size); /* Set Tx memory size for each channel */
+	IINCHIP_WRITE(RMSR,rx_size);	 /* Set Rx memory size for each channel */
+
+	SBUFBASEADDRESS[0] = (uint16)(__DEF_IINCHIP_MAP_TXBUF__);		/* Set base address of Tx memory for channel #0 */
+	RBUFBASEADDRESS[0] = (uint16)(__DEF_IINCHIP_MAP_RXBUF__);		/* Set base address of Rx memory for channel #0 */
+
+#ifdef __DEF_IINCHIP_DBG__
+	printf("Channel : SEND MEM SIZE : RECV MEM SIZE\r\n");
+#endif
+
+   for (i = 0 ; i < MAX_SOCK_NUM; i++)       // Set the size, masking and base address of Tx & Rx memory by each channel
+	{
+		SSIZE[i] = (int16)(0);
+		RSIZE[i] = (int16)(0);
+		if (ssum < 8192)
+		{
+         switch((tx_size >> i*2) & 0x03)  // Set Tx memory size
+			{
+			case 0:
+				SSIZE[i] = (int16)(1024);
+				SMASK[i] = (uint16)(0x03FF);
+				break;
+			case 1:
+				SSIZE[i] = (int16)(2048);
+				SMASK[i] = (uint16)(0x07FF);
+				break;
+			case 2:
+				SSIZE[i] = (int16)(4096);
+				SMASK[i] = (uint16)(0x0FFF);
+				break;
+			case 3:
+				SSIZE[i] = (int16)(8192);
+				SMASK[i] = (uint16)(0x1FFF);
+				break;
+			}
+		}
+		if (rsum < 8192)
+		{
+         switch((rx_size >> i*2) & 0x03)     // Set Rx memory size
+			{
+			case 0:
+				RSIZE[i] = (int16)(1024);
+				RMASK[i] = (uint16)(0x03FF);
+				break;
+			case 1:
+				RSIZE[i] = (int16)(2048);
+				RMASK[i] = (uint16)(0x07FF);
+				break;
+			case 2:
+				RSIZE[i] = (int16)(4096);
+				RMASK[i] = (uint16)(0x0FFF);
+				break;
+			case 3:
+				RSIZE[i] = (int16)(8192);
+				RMASK[i] = (uint16)(0x1FFF);
+				break;
+			}
+		}
+		ssum += SSIZE[i];
+		rsum += RSIZE[i];
+
+      if (i != 0)             // Sets base address of Tx and Rx memory for channel #1,#2,#3
+		{
+			SBUFBASEADDRESS[i] = SBUFBASEADDRESS[i-1] + SSIZE[i-1];
+			RBUFBASEADDRESS[i] = RBUFBASEADDRESS[i-1] + RSIZE[i-1];
+		}
+#ifdef __DEF_IINCHIP_DBG__
+		printf("%d : %.4x : %.4x : %.4x : %.4x\r\n", i, (uint16)SBUFBASEADDRESS[i], (uint16)RBUFBASEADDRESS[i], SSIZE[i], RSIZE[i]);
+#endif
+	}
+}
+
+
+void setMR(uint8 val)
+{
+
+#if (__DEF_IINCHIP_BUS__ == __DEF_IINCHIP_INDIRECT_MODE__)
+	*((volatile uint8*)(MR)) = val;
+#else
+	/* 	DIRECT ACCESS	*/
+	IINCHIP_WRITE(MR,val);
+#endif	
+}
+
+
+/**
+@brief	This function sets up gateway IP address.
+*/ 
+void setGAR(
+	uint8 * addr	/**< a pointer to a 4 -byte array responsible to set the Gateway IP address. */
+	)
+{
+	IINCHIP_WRITE((GAR0 + 0),addr[0]);
+	IINCHIP_WRITE((GAR0 + 1),addr[1]);
+	IINCHIP_WRITE((GAR0 + 2),addr[2]);
+	IINCHIP_WRITE((GAR0 + 3),addr[3]);
+}
+void getGWIP(uint8 * addr)
+{
+	addr[0] = IINCHIP_READ((GAR0 + 0));
+	addr[1] = IINCHIP_READ((GAR0 + 1));
+	addr[2] = IINCHIP_READ((GAR0 + 2));
+	addr[3] = IINCHIP_READ((GAR0 + 3));
+}
+
+
+/**
+@brief	It sets up SubnetMask address
+*/ 
+void setSUBR(
+	uint8 * addr	/**< a pointer to a 4 -byte array responsible to set the SubnetMask address */
+	)
+{
+	IINCHIP_WRITE((SUBR0 + 0),addr[0]);
+	IINCHIP_WRITE((SUBR0 + 1),addr[1]);
+	IINCHIP_WRITE((SUBR0 + 2),addr[2]);
+	IINCHIP_WRITE((SUBR0 + 3),addr[3]);
+}
+
+
+/**
+@brief	This function sets up MAC address.
+*/ 
+void setSHAR(
+	uint8 * addr	/**< a pointer to a 6 -byte array responsible to set the MAC address. */
+	)
+{
+	IINCHIP_WRITE((SHAR0 + 0),addr[0]);
+	IINCHIP_WRITE((SHAR0 + 1),addr[1]);
+	IINCHIP_WRITE((SHAR0 + 2),addr[2]);
+	IINCHIP_WRITE((SHAR0 + 3),addr[3]);
+	IINCHIP_WRITE((SHAR0 + 4),addr[4]);
+	IINCHIP_WRITE((SHAR0 + 5),addr[5]);
+}
+
+
+/**
+@brief	This function sets up Source IP address.
+*/
+void setSIPR(
+	uint8 * addr	/**< a pointer to a 4 -byte array responsible to set the Source IP address. */
+	)
+{
+	IINCHIP_WRITE((SIPR0 + 0),addr[0]);
+	IINCHIP_WRITE((SIPR0 + 1),addr[1]);
+	IINCHIP_WRITE((SIPR0 + 2),addr[2]);
+	IINCHIP_WRITE((SIPR0 + 3),addr[3]);
+}
+
+
+/**
+@brief	This function gets Interrupt register in common register.
+ */
+uint8 getIR( void )
+{
+   return IINCHIP_READ(IR);
+}
+
+
+
+/**
+@brief	This function sets up Retransmission time.
+
+If there is no response from the peer or delay in response then retransmission 
+will be there as per RTR (Retry Time-value Register)setting
+*/
+void setRTR(uint16 timeout)
+{
+	IINCHIP_WRITE(RTR0,(uint8)((timeout & 0xff00) >> 8));
+	IINCHIP_WRITE((RTR0 + 1),(uint8)(timeout & 0x00ff));
+}
+
+
+/**
+@brief	This function set the number of Retransmission.
+
+If there is no response from the peer or delay in response then recorded time 
+as per RTR & RCR register seeting then time out will occur.
+*/
+void setRCR(uint8 retry)
+{
+	IINCHIP_WRITE(RCR,retry);
+}
+
+
+/**
+@brief	This function set the interrupt mask Enable/Disable appropriate Interrupt. ('1' : interrupt enable)
+
+If any bit in IMR is set as '0' then there is not interrupt signal though the bit is
+set in IR register.
+*/
+void setIMR(uint8 mask)
+{
+	IINCHIP_WRITE(IMR,mask); // must be setted 0x10.
+}
+
+
+/**
+@brief	These below functions are used to get the Gateway, SubnetMask
+		and Source Hardware Address (MAC Address) and Source IP address
+*/
+void getGAR(uint8 * addr)
+{
+	addr[0] = IINCHIP_READ(GAR0);
+	addr[1] = IINCHIP_READ(GAR0+1);
+	addr[2] = IINCHIP_READ(GAR0+2);
+	addr[3] = IINCHIP_READ(GAR0+3);
+}
+void getSUBR(uint8 * addr)
+{
+	addr[0] = IINCHIP_READ(SUBR0);
+	addr[1] = IINCHIP_READ(SUBR0+1);
+	addr[2] = IINCHIP_READ(SUBR0+2);
+	addr[3] = IINCHIP_READ(SUBR0+3);
+}
+void getSHAR(uint8 * addr)
+{
+	addr[0] = IINCHIP_READ(SHAR0);
+	addr[1] = IINCHIP_READ(SHAR0+1);
+	addr[2] = IINCHIP_READ(SHAR0+2);
+	addr[3] = IINCHIP_READ(SHAR0+3);
+	addr[4] = IINCHIP_READ(SHAR0+4);
+	addr[5] = IINCHIP_READ(SHAR0+5);
+}
+void getSIPR(uint8 * addr)
+{
+	addr[0] = IINCHIP_READ(SIPR0);
+	addr[1] = IINCHIP_READ(SIPR0+1);
+	addr[2] = IINCHIP_READ(SIPR0+2);
+	addr[3] = IINCHIP_READ(SIPR0+3);
+}
+
+
+/**
+@brief	These below functions are used to get the Destination Hardware Address (MAC Address), Destination IP address and Destination Port.
+*/
+void getSn_DHAR(SOCKET s, uint8 * addr)
+{
+	addr[0] = IINCHIP_READ(Sn_DHAR0(s));
+	addr[1] = IINCHIP_READ(Sn_DHAR0(s)+1);
+	addr[2] = IINCHIP_READ(Sn_DHAR0(s)+2);
+	addr[3] = IINCHIP_READ(Sn_DHAR0(s)+3);
+	addr[4] = IINCHIP_READ(Sn_DHAR0(s)+4);
+	addr[5] = IINCHIP_READ(Sn_DHAR0(s)+5);
+}
+void setSn_DHAR(SOCKET s, uint8 * addr)
+{
+	IINCHIP_WRITE((Sn_DHAR0(s) + 0),addr[0]);
+	IINCHIP_WRITE((Sn_DHAR0(s) + 1),addr[1]);
+	IINCHIP_WRITE((Sn_DHAR0(s) + 2),addr[2]);
+	IINCHIP_WRITE((Sn_DHAR0(s) + 3),addr[3]);
+	IINCHIP_WRITE((Sn_DHAR0(s) + 4),addr[4]);
+	IINCHIP_WRITE((Sn_DHAR0(s) + 5),addr[5]);
+}
+void getSn_DIPR(SOCKET s, uint8 * addr)
+{
+	addr[0] = IINCHIP_READ(Sn_DIPR0(s));
+	addr[1] = IINCHIP_READ(Sn_DIPR0(s)+1);
+	addr[2] = IINCHIP_READ(Sn_DIPR0(s)+2);
+	addr[3] = IINCHIP_READ(Sn_DIPR0(s)+3);
+}
+void setSn_DIPR(SOCKET s, uint8 * addr)
+{
+	IINCHIP_WRITE((Sn_DIPR0(s) + 0),addr[0]);
+	IINCHIP_WRITE((Sn_DIPR0(s) + 1),addr[1]);
+	IINCHIP_WRITE((Sn_DIPR0(s) + 2),addr[2]);
+	IINCHIP_WRITE((Sn_DIPR0(s) + 3),addr[3]);
+}
+void getSn_DPORT(SOCKET s, uint8 * addr)
+{
+	addr[0] = IINCHIP_READ(Sn_DPORT0(s));
+	addr[1] = IINCHIP_READ(Sn_DPORT0(s)+1);
+}
+void setSn_DPORT(SOCKET s, uint8 * addr)
+{
+	IINCHIP_WRITE((Sn_DPORT0(s) + 0),addr[0]);
+	IINCHIP_WRITE((Sn_DPORT0(s) + 1),addr[1]);
+}
+
+
+/**
+@brief	This sets the maximum segment size of TCP in Active Mode), while in Passive Mode this is set by peer
+*/
+void setSn_MSS(SOCKET s, uint16 Sn_MSSR0)
+{
+	IINCHIP_WRITE(Sn_MSSR0(s),(uint8)((Sn_MSSR0 & 0xff00) >> 8));
+	IINCHIP_WRITE((Sn_MSSR0(s) + 1),(uint8)(Sn_MSSR0 & 0x00ff));
+}
+
+void setSn_TTL(SOCKET s, uint8 ttl)
+{
+   IINCHIP_WRITE(Sn_TTL(s), ttl);
+}
+
+
+/**
+@brief	These below function is used to setup the Protocol Field of IP Header when
+		executing the IP Layer RAW mode.
+*/
+void setSn_PROTO(SOCKET s, uint8 proto)
+{
+	IINCHIP_WRITE(Sn_PROTO(s),proto);
+}
+
+
+/**
+@brief	get socket interrupt status
+
+These below functions are used to read the Interrupt & Soket Status register
+*/
+uint8 getSn_IR(SOCKET s)
+{
+   return IINCHIP_READ(Sn_IR(s));
+}
+
+
+/**
+@brief	 get socket status
+*/
+uint8 getSn_SR(SOCKET s)
+{
+   return IINCHIP_READ(Sn_SR(s));
+}
+
+
+/**
+@brief	get socket TX free buf size
+
+This gives free buffer size of transmit buffer. This is the data size that user can transmit.
+User shuold check this value first and control the size of transmitting data
+*/
+uint16 getSn_TX_FSR(SOCKET s)
+{
+	uint16 val=0,val1=0;
+	do
+	{
+		val1 = IINCHIP_READ(Sn_TX_FSR0(s));
+		val1 = (val1 << 8) + IINCHIP_READ(Sn_TX_FSR0(s) + 1);
+      if (val1 != 0)
+		{
+   			val = IINCHIP_READ(Sn_TX_FSR0(s));
+   			val = (val << 8) + IINCHIP_READ(Sn_TX_FSR0(s) + 1);
+		}
+	} while (val != val1);
+   return val;
+}
+
+
+/**
+@brief	 get socket RX recv buf size
+
+This gives size of received data in receive buffer. 
+*/
+uint16 getSn_RX_RSR(SOCKET s)
+{
+	uint16 val=0,val1=0;
+	do
+	{
+		val1 = IINCHIP_READ(Sn_RX_RSR0(s));
+		val1 = (val1 << 8) + IINCHIP_READ(Sn_RX_RSR0(s) + 1);
+      if(val1 != 0)
+		{
+   			val = IINCHIP_READ(Sn_RX_RSR0(s));
+   			val = (val << 8) + IINCHIP_READ(Sn_RX_RSR0(s) + 1);
+		}
+	} while (val != val1);
+   return val;
+}
+
+
+/**
+@brief	 This function is being called by send() and sendto() function also. 
+
+This function read the Tx write pointer register and after copy the data in buffer update the Tx write pointer
+register. User should read upper byte first and lower byte later to get proper value.
+*/
+void send_data_processing(SOCKET s, uint8 *data, uint16 len)
+{
+	uint16 ptr;
+	ptr = IINCHIP_READ(Sn_TX_WR0(s));
+	ptr = ((ptr & 0x00ff) << 8) + IINCHIP_READ(Sn_TX_WR0(s) + 1);
+	write_data(s, data, (uint8 *)(ptr), len);
+	ptr += len;
+	IINCHIP_WRITE(Sn_TX_WR0(s),(uint8)((ptr & 0xff00) >> 8));
+	IINCHIP_WRITE((Sn_TX_WR0(s) + 1),(uint8)(ptr & 0x00ff));
+}
+
+
+/**
+@brief	This function is being called by recv() also.
+
+This function read the Rx read pointer register
+and after copy the data from receive buffer update the Rx write pointer register.
+User should read upper byte first and lower byte later to get proper value.
+*/
+void recv_data_processing(SOCKET s, uint8 *data, uint16 len)
+{
+	uint16 ptr;
+	ptr = IINCHIP_READ(Sn_RX_RD0(s));
+	ptr = ((ptr & 0x00ff) << 8) + IINCHIP_READ(Sn_RX_RD0(s) + 1);
+#ifdef __DEF_IINCHIP_DBG__
+	printf("ISR_RX: rd_ptr : %.4x\r\n", ptr);
+#endif
+	read_data(s, (uint8 *)ptr, data, len); // read data
+	ptr += len;
+	IINCHIP_WRITE(Sn_RX_RD0(s),(uint8)((ptr & 0xff00) >> 8));
+	IINCHIP_WRITE((Sn_RX_RD0(s) + 1),(uint8)(ptr & 0x00ff));
+}
+
+
+/**
+@brief	for copy the data form application buffer to Transmite buffer of the chip.
+
+This function is being used for copy the data form application buffer to Transmite
+buffer of the chip. It calculate the actual physical address where one has to write
+the data in transmite buffer. Here also take care of the condition while it exceed
+the Tx memory uper-bound of socket.
+*/
+void write_data(SOCKET s, vuint8 * src, vuint8 * dst, uint16 len)
+{
+	uint16 size;
+	uint16 dst_mask;
+	uint8 * dst_ptr;
+
+	dst_mask = (uint16)dst & getIINCHIP_TxMASK(s);
+	dst_ptr = (uint8 *)(getIINCHIP_TxBASE(s) + dst_mask);
+	
+	if (dst_mask + len > getIINCHIP_TxMAX(s)) 
+	{
+		size = getIINCHIP_TxMAX(s) - dst_mask;
+		wiz_write_buf((uint16)dst_ptr, (uint8*)src, size);
+		src += size;
+		size = len - size;
+		dst_ptr = (uint8 *)(getIINCHIP_TxBASE(s));
+		wiz_write_buf((uint16)dst_ptr, (uint8*)src, size);
+	} 
+	else
+	{
+		wiz_write_buf((uint16)dst_ptr, (uint8*)src, len);
+	}
+}
+
+
+/**
+@brief	This function is being used for copy the data form Receive buffer of the chip to application buffer.
+
+It calculate the actual physical address where one has to read
+the data from Receive buffer. Here also take care of the condition while it exceed
+the Rx memory uper-bound of socket.
+*/
+void read_data(SOCKET s, vuint8 * src, vuint8 * dst, uint16 len)
+{
+	uint16 size;
+	uint16 src_mask;
+	uint8 * src_ptr;
+
+	src_mask = (uint16)src & getIINCHIP_RxMASK(s);
+	src_ptr = (uint8 *)(getIINCHIP_RxBASE(s) + src_mask);
+	
+	if( (src_mask + len) > getIINCHIP_RxMAX(s) ) 
+	{
+		size = getIINCHIP_RxMAX(s) - src_mask;
+		wiz_read_buf((uint16)src_ptr, (uint8*)dst,size);
+		dst += size;
+		size = len - size;
+		src_ptr = (uint8 *)(getIINCHIP_RxBASE(s));
+		wiz_read_buf((uint16)src_ptr, (uint8*) dst,size);
+	} 
+	else
+	{
+		wiz_read_buf((uint16)src_ptr, (uint8*) dst,len);
+	}
+}
+
+
+#ifdef __DEF_IINCHIP_PPP__
+#define PPP_OPTION_BUF_LEN 64
+
+uint8 pppinit_in(uint8 * id, uint8 idlen, uint8 * passwd, uint8 passwdlen);
+
+
+/**
+@brief	make PPPoE connection
+@return	1 => success to connect, 2 => Auth fail, 3 => timeout, 4 => Auth type not support
+
+*/
+uint8 pppinit(uint8 * id, uint8 idlen, uint8 * passwd, uint8 passwdlen)
+{
+	uint8 ret;
+	uint8 isr;
+	
+	// PHASE0. W5100 PPPoE(ADSL) setup
+	// enable pppoe mode
+	printf("-- PHASE 0. W5100 PPPoE(ADSL) setup process --\r\n");
+	printf("\r\n");
+	IINCHIP_WRITE(MR,IINCHIP_READ(MR) | MR_PPPOE);
+
+	// open socket in pppoe mode
+	isr = IINCHIP_READ(Sn_IR(0));// first clear isr(0), W5100 at present time
+	IINCHIP_WRITE(Sn_IR(0),isr);
+	
+	IINCHIP_WRITE(PTIMER,200); // 5sec timeout
+	IINCHIP_WRITE(PMAGIC,0x01); // magic number
+	IINCHIP_WRITE(Sn_MR(0),Sn_MR_PPPOE);
+	IINCHIP_WRITE(Sn_CR(0),Sn_CR_OPEN);
+	
+	/* +20071122[chungs]:wait to process the command... */
+	while( IINCHIP_READ(Sn_CR(0)) ) 
+		;
+	/* ------- */
+	
+	ret = pppinit_in(id, idlen, passwd, passwdlen);
+
+	// close ppp connection socket
+	/* +200801 (hwkim) */
+	close(0);
+	/* ------- */
+	
+	return ret;
+}
+
+
+uint8 pppinit_in(uint8 * id, uint8 idlen, uint8 * passwd, uint8 passwdlen)
+{
+	uint8 loop_idx = 0;
+	uint8 isr = 0;
+	uint8 buf[PPP_OPTION_BUF_LEN];
+	uint16 len;
+	uint8 str[PPP_OPTION_BUF_LEN];
+	uint8 str_idx,dst_idx;
+
+   // PHASE1. PPPoE Discovery
+	// start to connect pppoe connection
+	printf("-- PHASE 1. PPPoE Discovery process --");
+	printf(" ok\r\n");
+	printf("\r\n");
+	IINCHIP_WRITE(Sn_CR(0),Sn_CR_PCON);
+	/* +20071122[chungs]:wait to process the command... */
+	while( IINCHIP_READ(Sn_CR(0)) ) 
+		;
+	/* ------- */
+	
+	wait_10ms(100);
+
+	loop_idx = 0;
+	//check whether PPPoE discovery end or not
+	while (!(IINCHIP_READ(Sn_IR(0)) & Sn_IR_PNEXT))
+	{
+		printf(".");
+		if (loop_idx++ == 10) // timeout
+		{
+			printf("timeout before LCP\r\n"); 
+			return 3;
+		}
+		wait_10ms(100);
+	}
+
+   /* +200801[bj] clear interrupt value*/
+   IINCHIP_WRITE(Sn_IR(0), 0xff);
+   /*---*/
+
+   // PHASE2. LCP process
+	printf("-- PHASE 2. LCP process --");
+		
+	// send LCP Request
+	{
+		// Magic number option
+		// option format (type value + length value + data)
+	   // write magic number value
+		buf[0] = 0x05; // type value
+		buf[1] = 0x06; // length value
+		buf[2] = 0x01; buf[3] = 0x01; buf[4] = 0x01; buf[5]= 0x01; // data
+		// for MRU option, 1492 0x05d4  
+		// buf[6] = 0x01; buf[7] = 0x04; buf[8] = 0x05; buf[9] = 0xD4;
+	}
+	send_data_processing(0, buf, 0x06);
+	IINCHIP_WRITE(Sn_CR(0),Sn_CR_PCR); // send request 
+	/* +20071122[chungs]:wait to process the command... */
+	while( IINCHIP_READ(Sn_CR(0)) ) 
+		;
+	/* ------- */
+		
+	wait_10ms(100);
+
+	while (!((isr = IINCHIP_READ(Sn_IR(0))) & Sn_IR_PNEXT))
+	{
+		if (isr & Sn_IR_PRECV) // Not support option
+		{
+   /* +200801[bj] clear interrupt value*/
+         IINCHIP_WRITE(Sn_IR(0), Sn_IR_PRECV);
+   /*---*/
+			len = getSn_RX_RSR(0);
+			if ( len > 0 )
+			{
+				recv_data_processing(0, str, len);
+				IINCHIP_WRITE(Sn_CR(0),Sn_CR_RECV);
+				/* +20071122[chungs]:wait to process the command... */
+				while( IINCHIP_READ(Sn_CR(0)) ) 
+					;
+				/* ------- */
+				
+				// for debug
+				//printf("LCP proc\r\n"); for (i = 0; i < len; i++) printf ("%02x ", str[i]); printf("\r\n");
+				// get option length
+				len = str[4]; len = ((len & 0x00ff) << 8) + str[5];
+				len += 2;
+				str_idx = 6; dst_idx = 0; // ppp header is 6 byte, so starts at 6.
+				do 
+				{
+					if ((str[str_idx] == 0x01) || (str[str_idx] == 0x02) || (str[str_idx] == 0x03) || (str[str_idx] == 0x05))
+					{
+						// skip as length of support option. str_idx+1 is option's length.
+						str_idx += str[str_idx+1];
+					}
+					else
+					{
+						// not support option , REJECT
+						memcpy((uint8 *)(buf+dst_idx), (uint8 *)(str+str_idx), str[str_idx+1]);
+						dst_idx += str[str_idx+1]; str_idx += str[str_idx+1];
+					}
+				} while (str_idx != len);
+	   			// for debug
+	   			// printf("LCP dst proc\r\n"); for (i = 0; i < dst_idx; i++) printf ("%02x ", dst[i]); printf("\r\n");
+	   
+	   			// send LCP REJECT packet
+	   			send_data_processing(0, buf, dst_idx);
+	   			IINCHIP_WRITE(Sn_CR(0),Sn_CR_PCJ);
+				/* +20071122[chungs]:wait to process the command... */
+				while( IINCHIP_READ(Sn_CR(0)) ) 
+					;
+				/* ------- */
+  			}
+		}
+		printf(".");
+		if (loop_idx++ == 10) // timeout
+		{
+			printf("timeout after LCP\r\n");
+			return 3;
+		}
+		wait_10ms(100);
+	}
+	printf(" ok\r\n");
+	printf("\r\n");
+
+   /* +200801[bj] clear interrupt value*/
+   IINCHIP_WRITE(Sn_IR(0), 0xff);
+   /*---*/
+
+	printf("-- PHASE 3. PPPoE(ADSL) Authentication mode --\r\n");
+	printf("Authentication protocol : %.2x %.2x, ", IINCHIP_READ(PATR0), IINCHIP_READ(PATR0+1));
+
+	loop_idx = 0;
+	if (IINCHIP_READ(PATR0) == 0xc0 && IINCHIP_READ(PATR0+1) == 0x23)
+	{
+		printf("PAP\r\n"); // in case of adsl normally supports PAP.
+		// send authentication data
+		// copy (idlen + id + passwdlen + passwd)
+		buf[loop_idx] = idlen; loop_idx++;
+		memcpy((uint8 *)(buf+loop_idx), (uint8 *)(id), idlen); loop_idx += idlen;
+		buf[loop_idx] = passwdlen; loop_idx++;
+		memcpy((uint8 *)(buf+loop_idx), (uint8 *)(passwd), passwdlen); loop_idx += passwdlen;
+		send_data_processing(0, buf, loop_idx);
+		IINCHIP_WRITE(Sn_CR(0),Sn_CR_PCR);
+		/* +20071122[chungs]:wait to process the command... */
+		while( IINCHIP_READ(Sn_CR(0)) ) 
+			;
+		/* ------- */
+		wait_10ms(100);
+	}	
+	else if (IINCHIP_READ(PATR0) == 0xc2 && IINCHIP_READ(PATR0+1) == 0x23)
+	{
+		uint8 chal_len;
+		md5_ctx context;
+		uint8  digest[16];
+
+		len = getSn_RX_RSR(0);
+		if ( len > 0 )
+		{
+			recv_data_processing(0, str, len);
+			IINCHIP_WRITE(Sn_CR(0),Sn_CR_RECV);
+			/* +20071122[chungs]:wait to process the command... */
+			while( IINCHIP_READ(Sn_CR(0)) ) 
+				;
+			/* ------- */
+#ifdef __DEF_IINCHIP_DBG__
+			printf("recv CHAP\r\n");
+			{
+				int16 i;
+				
+				for (i = 0; i < 32; i++) 
+					printf ("%02x ", str[i]);
+			}
+			printf("\r\n");
+#endif
+// str is C2 23 xx CHAL_ID xx xx CHAP_LEN CHAP_DATA
+// index  0  1  2  3       4  5  6        7 ...
+
+			memset(buf,0x00,64);
+			buf[loop_idx] = str[3]; loop_idx++; // chal_id
+			memcpy((uint8 *)(buf+loop_idx), (uint8 *)(passwd), passwdlen); loop_idx += passwdlen; //passwd
+			chal_len = str[6]; // chal_id
+			memcpy((uint8 *)(buf+loop_idx), (uint8 *)(str+7), chal_len); loop_idx += chal_len; //challenge
+			buf[loop_idx] = 0x80;
+#ifdef __DEF_IINCHIP_DBG__
+			printf("CHAP proc d1\r\n");
+			{
+				int16 i;
+				for (i = 0; i < 64; i++) 
+					printf ("%02x ", buf[i]);
+			}
+			printf("\r\n");
+#endif
+
+			md5_init(&context);
+			md5_update(&context, buf, loop_idx);
+			md5_final(digest, &context);
+
+#ifdef __DEF_IINCHIP_DBG__
+			printf("CHAP proc d1\r\n");
+			{
+				int16 i;				
+				for (i = 0; i < 16; i++) 
+					printf ("%02x", digest[i]);
+			}
+			printf("\r\n");
+#endif
+			loop_idx = 0;
+			buf[loop_idx] = 16; loop_idx++; // hash_len
+			memcpy((uint8 *)(buf+loop_idx), (uint8 *)(digest), 16); loop_idx += 16; // hashed value
+			memcpy((uint8 *)(buf+loop_idx), (uint8 *)(id), idlen); loop_idx += idlen; // id
+			send_data_processing(0, buf, loop_idx);
+			IINCHIP_WRITE(Sn_CR(0),Sn_CR_PCR);
+			/* +20071122[chungs]:wait to process the command... */
+			while( IINCHIP_READ(Sn_CR(0)) ) 
+				;
+			/* ------- */
+			wait_10ms(100);
+		}
+	}
+	else
+	{
+		printf("Not support\r\n");
+#ifdef __DEF_IINCHIP_DBG__
+		printf("Not support PPP Auth type: %.2x%.2x\r\n",IINCHIP_READ(PATR0), IINCHIP_READ(PATR0+1));
+#endif
+		return 4;
+	}
+	printf("\r\n");
+
+	printf("-- Waiting for PPPoE server's admission --");
+	loop_idx = 0;
+	while (!((isr = IINCHIP_READ(Sn_IR(0))) & Sn_IR_PNEXT))
+	{
+		if (isr & Sn_IR_PFAIL)
+		{
+   /* +200801[bj] clear interrupt value*/
+   IINCHIP_WRITE(Sn_IR(0), 0xff);
+   /*---*/
+			printf("failed\r\nReinput id, password..\r\n");
+			return 2;
+		}
+		printf(".");
+		if (loop_idx++ == 10) // timeout
+		{
+   /* +200801[bj] clear interrupt value*/
+   IINCHIP_WRITE(Sn_IR(0), 0xff);
+   /*---*/
+			printf("timeout after PAP\r\n");
+			return 3;
+		}
+		wait_10ms(100);
+	}
+   /* +200801[bj] clear interrupt value*/
+   IINCHIP_WRITE(Sn_IR(0), 0xff);
+   /*---*/
+	printf("ok\r\n");
+	printf("\r\n");
+	printf("-- PHASE 4. IPCP process --");
+	// IP Address
+	buf[0] = 0x03; buf[1] = 0x06; buf[2] = 0x00; buf[3] = 0x00; buf[4] = 0x00; buf[5] = 0x00;
+	send_data_processing(0, buf, 6);
+	IINCHIP_WRITE(Sn_CR(0),Sn_CR_PCR);
+	/* +20071122[chungs]:wait to process the command... */
+	while( IINCHIP_READ(Sn_CR(0)) ) 
+		;
+	/* ------- */
+	wait_10ms(100);
+
+	loop_idx = 0;
+	while (1)
+	{
+		if (IINCHIP_READ(Sn_IR(0)) & Sn_IR_PRECV)
+		{
+   /* +200801[bj] clear interrupt value*/
+   IINCHIP_WRITE(Sn_IR(0), 0xff);
+   /*---*/
+			len = getSn_RX_RSR(0);
+			if ( len > 0 )
+			{
+				recv_data_processing(0, str, len);
+				IINCHIP_WRITE(Sn_CR(0),Sn_CR_RECV);
+				/* +20071122[chungs]:wait to process the command... */
+				while( IINCHIP_READ(Sn_CR(0)) ) 
+					;
+				/* ------- */
+	   			//for debug
+	   			//printf("IPCP proc\r\n"); for (i = 0; i < len; i++) printf ("%02x ", str[i]); printf("\r\n");
+	   			str_idx = 6; dst_idx = 0;
+	   			if (str[2] == 0x03) // in case of NAK
+	   			{
+	   				do 
+	   				{
+	   					if (str[str_idx] == 0x03) // request only ip information
+	   					{
+	   						memcpy((uint8 *)(buf+dst_idx), (uint8 *)(str+str_idx), str[str_idx+1]);
+	   						dst_idx += str[str_idx+1]; str_idx += str[str_idx+1];
+	   					}
+	   					else
+	   					{
+	   						// skip byte
+	   						str_idx += str[str_idx+1];
+	   					}
+	   					// for debug
+	   					//printf("s: %d, d: %d, l: %d", str_idx, dst_idx, len);
+	   				} while (str_idx != len);
+	   				send_data_processing(0, buf, dst_idx);
+	   				IINCHIP_WRITE(Sn_CR(0),Sn_CR_PCR); // send ipcp request
+	   				/* +20071122[chungs]:wait to process the command... */
+					while( IINCHIP_READ(Sn_CR(0)) ) 
+						;
+					/* ------- */
+	   				wait_10ms(100);
+	   				break;
+	   			}
+			}
+		}
+		printf(".");
+		if (loop_idx++ == 10) // timeout
+		{
+			printf("timeout after IPCP\r\n");
+			return 3;
+		}
+		wait_10ms(100);
+		send_data_processing(0, buf, 6);
+		IINCHIP_WRITE(Sn_CR(0),Sn_CR_PCR); //ipcp re-request
+		/* +20071122[chungs]:wait to process the command... */
+		while( IINCHIP_READ(Sn_CR(0)) ) 
+			;
+		/* ------- */
+	}
+
+	loop_idx = 0;
+	while (!(IINCHIP_READ(Sn_IR(0)) & Sn_IR_PNEXT))
+	{
+		printf(".");
+		if (loop_idx++ == 10) // timeout
+		{
+			printf("timeout after IPCP NAK\r\n");
+			return 3;
+		}
+		wait_10ms(100);
+		IINCHIP_WRITE(Sn_CR(0),Sn_CR_PCR); // send ipcp request
+		/* +20071122[chungs]:wait to process the command... */
+		while( IINCHIP_READ(Sn_CR(0)) ) 
+			;
+		/* ------- */
+	}
+   /* +200801[bj] clear interrupt value*/
+   IINCHIP_WRITE(Sn_IR(0), 0xff);
+   /*---*/
+	printf("ok\r\n");
+	printf("\r\n");
+	return 1;
+	// after this function, User must save the pppoe server's mac address and pppoe session id in current connection
+}
+
+
+/**
+@brief	terminate PPPoE connection
+*/
+uint8 pppterm(uint8 * mac, uint8 * sessionid)
+{
+	uint16 i;
+	uint8 isr;
+#ifdef __DEF_IINCHIP_DBG__
+	printf("pppterm()\r\n");
+#endif
+	/* Set PPPoE bit in MR(Common Mode Register) : enable socket0 pppoe */
+	IINCHIP_WRITE(MR,IINCHIP_READ(MR) | MR_PPPOE);
+	
+	// write pppoe server's mac address and session id 
+	// must be setted these value.
+	for (i = 0; i < 6; i++) IINCHIP_WRITE((Sn_DHAR0(0)+i),mac[i]);
+	for (i = 0; i < 2; i++) IINCHIP_WRITE((Sn_DPORT0(0)+i),sessionid[i]);
+	isr = IINCHIP_READ(Sn_IR(0));
+	IINCHIP_WRITE(Sn_IR(0),isr);
+	
+	//open socket in pppoe mode
+	IINCHIP_WRITE(Sn_MR(0),Sn_MR_PPPOE);
+	IINCHIP_WRITE(Sn_CR(0),Sn_CR_OPEN);
+	/* +20071122[chungs]:wait to process the command... */
+	while( IINCHIP_READ(Sn_CR(0)) ) 
+		;
+	/* ------- */
+	wait_1us(1);
+	// close pppoe connection
+	IINCHIP_WRITE(Sn_CR(0),Sn_CR_PDISCON);
+	/* +20071122[chungs]:wait to process the command... */
+	while( IINCHIP_READ(Sn_CR(0)) ) 
+		;
+	/* ------- */
+	wait_10ms(100);
+	// close socket
+	/* +200801 (hwkim) */
+	close(0);
+	/* ------- */
+	
+
+#ifdef __DEF_IINCHIP_DBG__
+	printf("pppterm() end ..\r\n");
+#endif
+
+	return 1;
+}
+#endif
diff --git a/libraries/Ethernet/utility/w5100.h b/libraries/Ethernet/utility/w5100.h
new file mode 100755
index 0000000..6eddf91
--- /dev/null
+++ b/libraries/Ethernet/utility/w5100.h
@@ -0,0 +1,299 @@
+/*
+@file		w5100.h
+*/
+
+#ifndef	_W5100_H_
+#define	_W5100_H_
+
+
+#define MR __DEF_IINCHIP_MAP_BASE__
+#define IDM_OR ((__DEF_IINCHIP_MAP_BASE__ + 0x00))
+#define IDM_AR0 ((__DEF_IINCHIP_MAP_BASE__ + 0x01))
+#define IDM_AR1 ((__DEF_IINCHIP_MAP_BASE__ + 0x02))
+#define IDM_DR ((__DEF_IINCHIP_MAP_BASE__ + 0x03))
+
+
+/**
+ @brief Gateway IP Register address
+ */
+#define GAR0				(COMMON_BASE + 0x0001)
+/**
+ @brief Subnet mask Register address
+ */
+#define SUBR0			(COMMON_BASE + 0x0005)
+/**
+ @brief Source MAC Register address
+ */
+#define SHAR0				(COMMON_BASE + 0x0009)
+/**
+ @brief Source IP Register address
+ */
+#define SIPR0				(COMMON_BASE + 0x000F)
+/**
+ @brief Interrupt Register
+ */
+#define IR					(COMMON_BASE + 0x0015)
+/**
+ @brief Interrupt mask register
+ */
+#define IMR					(COMMON_BASE + 0x0016)
+/**
+ @brief Timeout register address( 1 is 100us )
+ */
+#define RTR0				(COMMON_BASE + 0x0017)
+/**
+ @brief Retry count reigster
+ */
+#define RCR						(COMMON_BASE + 0x0019)
+/**
+ @brief Receive memory size reigster
+ */
+#define RMSR			(COMMON_BASE + 0x001A)
+/**
+ @brief Transmit memory size reigster
+ */
+#define TMSR			(COMMON_BASE + 0x001B)
+/**
+ @brief Authentication type register address in PPPoE mode
+ */
+#define PATR0					(COMMON_BASE + 0x001C)
+//#define PPPALGO (COMMON_BASE + 0x001D)
+#define PTIMER (COMMON_BASE + 0x0028)
+#define PMAGIC (COMMON_BASE + 0x0029)
+
+/**
+ @brief Unreachable IP register address in UDP mode
+ */
+#define UIPR0				(COMMON_BASE + 0x002A)
+/**
+ @brief Unreachable Port register address in UDP mode
+ */
+#define UPORT0			(COMMON_BASE + 0x002E)
+
+/**
+ @brief socket register
+*/
+#define CH_BASE (COMMON_BASE + 0x0400)
+/**
+ @brief	size of each channel register map
+ */
+#define CH_SIZE		0x0100
+/**
+ @brief socket Mode register
+ */
+#define Sn_MR(ch)		(CH_BASE + ch * CH_SIZE + 0x0000)
+/**
+ @brief channel Sn_CR register
+ */
+#define Sn_CR(ch)				(CH_BASE + ch * CH_SIZE + 0x0001)
+/**
+ @brief channel interrupt register
+ */
+#define Sn_IR(ch)			(CH_BASE + ch * CH_SIZE + 0x0002)
+/**
+ @brief channel status register
+ */
+#define Sn_SR(ch)			(CH_BASE + ch * CH_SIZE + 0x0003)
+/**
+ @brief source port register
+ */
+#define Sn_PORT0(ch)		(CH_BASE + ch * CH_SIZE + 0x0004)
+/**
+ @brief Peer MAC register address
+ */
+#define Sn_DHAR0(ch)			(CH_BASE + ch * CH_SIZE + 0x0006)
+/**
+ @brief Peer IP register address
+ */
+#define Sn_DIPR0(ch)			(CH_BASE + ch * CH_SIZE + 0x000C)
+/**
+ @brief Peer port register address
+ */
+#define Sn_DPORT0(ch)		(CH_BASE + ch * CH_SIZE + 0x0010)
+/**
+ @brief Maximum Segment Size(Sn_MSSR0) register address
+ */
+#define Sn_MSSR0(ch)					(CH_BASE + ch * CH_SIZE + 0x0012)
+/**
+ @brief Protocol of IP Header field register in IP raw mode
+ */
+#define Sn_PROTO(ch)			(CH_BASE + ch * CH_SIZE + 0x0014)
+
+/** 
+ @brief IP Type of Service(TOS) Register 
+ */
+#define Sn_TOS(ch)						(CH_BASE + ch * CH_SIZE + 0x0015)
+/**
+ @brief IP Time to live(TTL) Register 
+ */
+#define Sn_TTL(ch)						(CH_BASE + ch * CH_SIZE + 0x0016)
+
+/**
+ @brief Transmit free memory size register
+ */
+#define Sn_TX_FSR0(ch)	(CH_BASE + ch * CH_SIZE + 0x0020)
+/**
+ @brief Transmit memory read pointer register address
+ */
+#define Sn_TX_RD0(ch)			(CH_BASE + ch * CH_SIZE + 0x0022)
+/**
+ @brief Transmit memory write pointer register address
+ */
+#define Sn_TX_WR0(ch)			(CH_BASE + ch * CH_SIZE + 0x0024)
+/**
+ @brief Received data size register
+ */
+#define Sn_RX_RSR0(ch)	(CH_BASE + ch * CH_SIZE + 0x0026)
+/**
+ @brief Read point of Receive memory
+ */
+#define Sn_RX_RD0(ch)			(CH_BASE + ch * CH_SIZE + 0x0028)
+/**
+ @brief Write point of Receive memory
+ */
+#define Sn_RX_WR0(ch)			(CH_BASE + ch * CH_SIZE + 0x002A)
+
+
+
+/* MODE register values */
+#define MR_RST			0x80 /**< reset */
+#define MR_PB			0x10 /**< ping block */
+#define MR_PPPOE		0x08 /**< enable pppoe */
+#define MR_LB  		0x04 /**< little or big endian selector in indirect mode */
+#define MR_AI			0x02 /**< auto-increment in indirect mode */
+#define MR_IND			0x01 /**< enable indirect mode */
+
+/* IR register values */
+#define IR_CONFLICT	0x80 /**< check ip confict */
+#define IR_UNREACH	0x40 /**< get the destination unreachable message in UDP sending */
+#define IR_PPPoE		0x20 /**< get the PPPoE close message */
+#define IR_SOCK(ch)	(0x01 << ch) /**< check socket interrupt */
+
+/* Sn_MR values */
+#define Sn_MR_CLOSE		0x00		/**< unused socket */
+#define Sn_MR_TCP		0x01		/**< TCP */
+#define Sn_MR_UDP		0x02		/**< UDP */
+#define Sn_MR_IPRAW	0x03		/**< IP LAYER RAW SOCK */
+#define Sn_MR_MACRAW	0x04		/**< MAC LAYER RAW SOCK */
+#define Sn_MR_PPPOE		0x05		/**< PPPoE */
+#define Sn_MR_ND		0x20		/**< No Delayed Ack(TCP) flag */
+#define Sn_MR_MULTI		0x80		/**< support multicating */
+
+
+/* Sn_CR values */
+#define Sn_CR_OPEN		0x01		/**< initialize or open socket */
+#define Sn_CR_LISTEN		0x02		/**< wait connection request in tcp mode(Server mode) */
+#define Sn_CR_CONNECT	0x04		/**< send connection request in tcp mode(Client mode) */
+#define Sn_CR_DISCON		0x08		/**< send closing reqeuset in tcp mode */
+#define Sn_CR_CLOSE		0x10		/**< close socket */
+#define Sn_CR_SEND		0x20		/**< updata txbuf pointer, send data */
+#define Sn_CR_SEND_MAC	0x21		/**< send data with MAC address, so without ARP process */
+#define Sn_CR_SEND_KEEP	0x22		/**<  send keep alive message */
+#define Sn_CR_RECV		0x40		/**< update rxbuf pointer, recv data */
+
+#ifdef __DEF_IINCHIP_PPP__
+	#define Sn_CR_PCON				0x23		 
+	#define Sn_CR_PDISCON			0x24		 
+	#define Sn_CR_PCR					0x25		 
+	#define Sn_CR_PCN					0x26		
+	#define Sn_CR_PCJ					0x27		
+#endif
+
+/* Sn_IR values */
+#ifdef __DEF_IINCHIP_PPP__
+	#define Sn_IR_PRECV			0x80		
+	#define Sn_IR_PFAIL			0x40		
+	#define Sn_IR_PNEXT			0x20		
+#endif
+#define Sn_IR_SEND_OK			0x10		/**< complete sending */
+#define Sn_IR_TIMEOUT			0x08		/**< assert timeout */
+#define Sn_IR_RECV				0x04		/**< receiving data */
+#define Sn_IR_DISCON				0x02		/**< closed socket */
+#define Sn_IR_CON					0x01		/**< established connection */
+
+/* Sn_SR values */
+#define SOCK_CLOSED				0x00		/**< closed */
+#define SOCK_INIT 				0x13		/**< init state */
+#define SOCK_LISTEN				0x14		/**< listen state */
+#define SOCK_SYNSENT	   		0x15		/**< connection state */
+#define SOCK_SYNRECV		   	0x16		/**< connection state */
+#define SOCK_ESTABLISHED		0x17		/**< success to connect */
+#define SOCK_FIN_WAIT			0x18		/**< closing state */
+#define SOCK_CLOSING		   	0x1A		/**< closing state */
+#define SOCK_TIME_WAIT			0x1B		/**< closing state */
+#define SOCK_CLOSE_WAIT			0x1C		/**< closing state */
+#define SOCK_LAST_ACK			0x1D		/**< closing state */
+#define SOCK_UDP				   0x22		/**< udp socket */
+#define SOCK_IPRAW			   0x32		/**< ip raw mode socket */
+#define SOCK_MACRAW			   0x42		/**< mac raw mode socket */
+#define SOCK_PPPOE				0x5F		/**< pppoe socket */
+
+/* IP PROTOCOL */
+#define IPPROTO_IP              0           /**< Dummy for IP */
+#define IPPROTO_ICMP            1           /**< Control message protocol */
+#define IPPROTO_IGMP            2           /**< Internet group management protocol */
+#define IPPROTO_GGP             3           /**< Gateway^2 (deprecated) */
+#define IPPROTO_TCP             6           /**< TCP */
+#define IPPROTO_PUP             12          /**< PUP */
+#define IPPROTO_UDP             17          /**< UDP */
+#define IPPROTO_IDP             22          /**< XNS idp */
+#define IPPROTO_ND              77          /**< UNOFFICIAL net disk protocol */
+#define IPPROTO_RAW             255         /**< Raw IP packet */
+
+
+/*********************************************************
+* iinchip access function
+*********************************************************/
+extern uint8 IINCHIP_READ(uint16 addr);
+extern uint8 IINCHIP_WRITE(uint16 addr,uint8 data);
+extern uint16 wiz_read_buf(uint16 addr, uint8* buf,uint16 len);
+extern uint16 wiz_write_buf(uint16 addr,uint8* buf,uint16 len);
+
+extern void iinchip_init(void); // reset iinchip
+extern void sysinit(uint8 tx_size, uint8 rx_size); // setting tx/rx buf size
+extern uint8 getISR(uint8 s);
+extern void putISR(uint8 s, uint8 val);
+extern uint16 getIINCHIP_RxMAX(uint8 s);
+extern uint16 getIINCHIP_TxMAX(uint8 s);
+extern uint16 getIINCHIP_RxMASK(uint8 s);
+extern uint16 getIINCHIP_TxMASK(uint8 s);
+extern uint16 getIINCHIP_RxBASE(uint8 s);
+extern uint16 getIINCHIP_TxBASE(uint8 s);
+extern void setGAR(uint8 * addr); // set gateway address
+extern void setSUBR(uint8 * addr); // set subnet mask address
+extern void setSHAR(uint8 * addr); // set local MAC address
+extern void setSIPR(uint8 * addr); // set local IP address
+extern void setRTR(uint16 timeout); // set retry duration for data transmission, connection, closing ...
+extern void setRCR(uint8 retry); // set retry count (above the value, assert timeout interrupt)
+extern void setIMR(uint8 mask); // set interrupt mask. 
+extern void getGAR(uint8 * addr);
+extern void getSUBR(uint8 * addr);
+extern void getSHAR(uint8 * addr);
+extern void getSIPR(uint8 * addr);
+extern uint8 getIR( void );
+extern void setSn_MSS(SOCKET s, uint16 Sn_MSSR0); // set maximum segment size
+extern void setSn_PROTO(SOCKET s, uint8 proto); // set IP Protocol value using IP-Raw mode
+extern uint8 getSn_IR(SOCKET s); // get socket interrupt status
+extern uint8 getSn_SR(SOCKET s); // get socket status
+extern uint16 getSn_TX_FSR(SOCKET s); // get socket TX free buf size
+extern uint16 getSn_RX_RSR(SOCKET s); // get socket RX recv buf size
+extern void setSn_DHAR(SOCKET s, uint8 * addr);
+extern void setSn_DIPR(SOCKET s, uint8 * addr);
+extern void setSn_DPORT(SOCKET s, uint8 * addr);
+extern void getSn_DHAR(SOCKET s, uint8 * addr);
+extern void getSn_DIPR(SOCKET s, uint8 * addr);
+extern void getSn_DPORT(SOCKET s, uint8 * addr);
+extern void setSn_TTL(SOCKET s, uint8 ttl);
+extern void setMR(uint8 val);
+
+#ifdef __DEF_IINCHIP_PPP__
+extern uint8 pppinit(uint8 *id, uint8 idlen, uint8 *passwd, uint8 passwdlen);
+extern uint8 pppterm(uint8 *mac,uint8 *sessionid);
+#endif
+
+extern void send_data_processing(SOCKET s, uint8 *data, uint16 len);
+extern void recv_data_processing(SOCKET s, uint8 *data, uint16 len);
+extern void read_data(SOCKET s, vuint8 * src, vuint8 * dst, uint16 len);
+extern void write_data(SOCKET s, vuint8 * src, vuint8 * dst, uint16 len);
+
+#endif
-- 
cgit v1.2.3-18-g5258