Ethernet, SD and LiquidCrystal to the new library format

4 files changed, 0 insertions, 1033 deletions

diff --git a/libraries/Ethernet/utility/socket.cpp b/libraries/Ethernet/utility/socket.cpp
deleted file mode 100644
index fd3e442..0000000
--- a/libraries/Ethernet/utility/socket.cpp
+++ /dev/null
@@ -1,400 +0,0 @@
-#include "w5100.h"
-#include "socket.h"
-
-static uint16_t 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 success else 0.
- */
-uint8_t socket(SOCKET s, uint8_t protocol, uint16_t port, uint8_t flag)
-{
-  if ((protocol == SnMR::TCP) || (protocol == SnMR::UDP) || (protocol == SnMR::IPRAW) || (protocol == SnMR::MACRAW) || (protocol == SnMR::PPPOE))
-  {
-    close(s);
-    W5100.writeSnMR(s, protocol | flag);
-    if (port != 0) {
-      W5100.writeSnPORT(s, port);
-    } 
-    else {
-      local_port++; // if don't set the source port, set local_port number.
-      W5100.writeSnPORT(s, local_port);
-    }
-
-    W5100.execCmdSn(s, Sock_OPEN);
-    
-    return 1;
-  }
-
-  return 0;
-}
-
-
-/**
- * @brief	This function close the socket and parameter is "s" which represent the socket number
- */
-void close(SOCKET s)
-{
-  W5100.execCmdSn(s, Sock_CLOSE);
-  W5100.writeSnIR(s, 0xFF);
-}
-
-
-/**
- * @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_t listen(SOCKET s)
-{
-  if (W5100.readSnSR(s) != SnSR::INIT)
-    return 0;
-  W5100.execCmdSn(s, Sock_LISTEN);
-  return 1;
-}
-
-
-/**
- * @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_t connect(SOCKET s, uint8_t * addr, uint16_t port)
-{
-  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) 
-    ) 
-    return 0;
-
-  // set destination IP
-  W5100.writeSnDIPR(s, addr);
-  W5100.writeSnDPORT(s, port);
-  W5100.execCmdSn(s, Sock_CONNECT);
-
-  return 1;
-}
-
-
-
-/**
- * @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)
-{
-  W5100.execCmdSn(s, Sock_DISCON);
-}
-
-
-/**
- * @brief	This function used to send the data in TCP mode
- * @return	1 for success else 0.
- */
-uint16_t send(SOCKET s, const uint8_t * buf, uint16_t len)
-{
-  uint8_t status=0;
-  uint16_t ret=0;
-  uint16_t freesize=0;
-
-  if (len > W5100.SSIZE) 
-    ret = W5100.SSIZE; // check size not to exceed MAX size.
-  else 
-    ret = len;
-
-  // if freebuf is available, start.
-  do 
-  {
-    freesize = W5100.getTXFreeSize(s);
-    status = W5100.readSnSR(s);
-    if ((status != SnSR::ESTABLISHED) && (status != SnSR::CLOSE_WAIT))
-    {
-      ret = 0; 
-      break;
-    }
-  } 
-  while (freesize < ret);
-
-  // copy data
-  W5100.send_data_processing(s, (uint8_t *)buf, ret);
-  W5100.execCmdSn(s, Sock_SEND);
-
-  /* +2008.01 bj */
-  while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK ) 
-  {
-    /* m2008.01 [bj] : reduce code */
-    if ( W5100.readSnSR(s) == SnSR::CLOSED )
-    {
-      close(s);
-      return 0;
-    }
-  }
-  /* +2008.01 bj */
-  W5100.writeSnIR(s, SnIR::SEND_OK);
-  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.
- */
-int16_t recv(SOCKET s, uint8_t *buf, int16_t len)
-{
-  // Check how much data is available
-  int16_t ret = W5100.getRXReceivedSize(s);
-  if ( ret == 0 )
-  {
-    // No data available.
-    uint8_t status = W5100.readSnSR(s);
-    if ( status == SnSR::LISTEN || status == SnSR::CLOSED || status == SnSR::CLOSE_WAIT )
-    {
-      // The remote end has closed its side of the connection, so this is the eof state
-      ret = 0;
-    }
-    else
-    {
-      // The connection is still up, but there's no data waiting to be read
-      ret = -1;
-    }
-  }
-  else if (ret > len)
-  {
-    ret = len;
-  }
-
-  if ( ret > 0 )
-  {
-    W5100.recv_data_processing(s, buf, ret);
-    W5100.execCmdSn(s, Sock_RECV);
-  }
-  return ret;
-}
-
-
-/**
- * @brief	Returns the first byte in the receive queue (no checking)
- * 		
- * @return
- */
-uint16_t peek(SOCKET s, uint8_t *buf)
-{
-  W5100.recv_data_processing(s, buf, 1, 1);
-
-  return 1;
-}
-
-
-/**
- * @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_t sendto(SOCKET s, const uint8_t *buf, uint16_t len, uint8_t *addr, uint16_t port)
-{
-  uint16_t ret=0;
-
-  if (len > W5100.SSIZE) ret = W5100.SSIZE; // 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;
-  }
-  else
-  {
-    W5100.writeSnDIPR(s, addr);
-    W5100.writeSnDPORT(s, port);
-
-    // copy data
-    W5100.send_data_processing(s, (uint8_t *)buf, ret);
-    W5100.execCmdSn(s, Sock_SEND);
-
-    /* +2008.01 bj */
-    while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK ) 
-    {
-      if (W5100.readSnIR(s) & SnIR::TIMEOUT)
-      {
-        /* +2008.01 [bj]: clear interrupt */
-        W5100.writeSnIR(s, (SnIR::SEND_OK | SnIR::TIMEOUT)); /* clear SEND_OK & TIMEOUT */
-        return 0;
-      }
-    }
-
-    /* +2008.01 bj */
-    W5100.writeSnIR(s, SnIR::SEND_OK);
-  }
-  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_t recvfrom(SOCKET s, uint8_t *buf, uint16_t len, uint8_t *addr, uint16_t *port)
-{
-  uint8_t head[8];
-  uint16_t data_len=0;
-  uint16_t ptr=0;
-
-  if ( len > 0 )
-  {
-    ptr = W5100.readSnRX_RD(s);
-    switch (W5100.readSnMR(s) & 0x07)
-    {
-    case SnMR::UDP :
-      W5100.read_data(s, (uint8_t *)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];
-
-      W5100.read_data(s, (uint8_t *)ptr, buf, data_len); // data copy.
-      ptr += data_len;
-
-      W5100.writeSnRX_RD(s, ptr);
-      break;
-
-    case SnMR::IPRAW :
-      W5100.read_data(s, (uint8_t *)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];
-
-      W5100.read_data(s, (uint8_t *)ptr, buf, data_len); // data copy.
-      ptr += data_len;
-
-      W5100.writeSnRX_RD(s, ptr);
-      break;
-
-    case SnMR::MACRAW:
-      W5100.read_data(s,(uint8_t*)ptr,head,2);
-      ptr+=2;
-      data_len = head[0];
-      data_len = (data_len<<8) + head[1] - 2;
-
-      W5100.read_data(s,(uint8_t*) ptr,buf,data_len);
-      ptr += data_len;
-      W5100.writeSnRX_RD(s, ptr);
-      break;
-
-    default :
-      break;
-    }
-    W5100.execCmdSn(s, Sock_RECV);
-  }
-  return data_len;
-}
-
-
-uint16_t igmpsend(SOCKET s, const uint8_t * buf, uint16_t len)
-{
-  uint8_t status=0;
-  uint16_t ret=0;
-
-  if (len > W5100.SSIZE) 
-    ret = W5100.SSIZE; // check size not to exceed MAX size.
-  else 
-    ret = len;
-
-  if (ret == 0)
-    return 0;
-
-  W5100.send_data_processing(s, (uint8_t *)buf, ret);
-  W5100.execCmdSn(s, Sock_SEND);
-
-  while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK ) 
-  {
-    status = W5100.readSnSR(s);
-    if (W5100.readSnIR(s) & SnIR::TIMEOUT)
-    {
-      /* in case of igmp, if send fails, then socket closed */
-      /* if you want change, remove this code. */
-      close(s);
-      return 0;
-    }
-  }
-
-  W5100.writeSnIR(s, SnIR::SEND_OK);
-  return ret;
-}
-
-uint16_t bufferData(SOCKET s, uint16_t offset, const uint8_t* buf, uint16_t len)
-{
-  uint16_t ret =0;
-  if (len > W5100.getTXFreeSize(s))
-  {
-    ret = W5100.getTXFreeSize(s); // check size not to exceed MAX size.
-  }
-  else
-  {
-    ret = len;
-  }
-  W5100.send_data_processing_offset(s, offset, buf, ret);
-  return ret;
-}
-
-int startUDP(SOCKET s, uint8_t* addr, uint16_t port)
-{
-  if
-    (
-     ((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && (addr[3] == 0x00)) ||
-     ((port == 0x00))
-    ) 
-  {
-    return 0;
-  }
-  else
-  {
-    W5100.writeSnDIPR(s, addr);
-    W5100.writeSnDPORT(s, port);
-    return 1;
-  }
-}
-
-int sendUDP(SOCKET s)
-{
-  W5100.execCmdSn(s, Sock_SEND);
-		
-  /* +2008.01 bj */
-  while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK ) 
-  {
-    if (W5100.readSnIR(s) & SnIR::TIMEOUT)
-    {
-      /* +2008.01 [bj]: clear interrupt */
-      W5100.writeSnIR(s, (SnIR::SEND_OK|SnIR::TIMEOUT));
-      return 0;
-    }
-  }
-
-  /* +2008.01 bj */	
-  W5100.writeSnIR(s, SnIR::SEND_OK);
-
-  /* Sent ok */
-  return 1;
-}
-
diff --git a/libraries/Ethernet/utility/socket.h b/libraries/Ethernet/utility/socket.h
deleted file mode 100644
index 45e0fb3..0000000
--- a/libraries/Ethernet/utility/socket.h
+++ /dev/null
@@ -1,41 +0,0 @@
-#ifndef	_SOCKET_H_
-#define	_SOCKET_H_
-
-#include "w5100.h"
-
-extern uint8_t socket(SOCKET s, uint8_t protocol, uint16_t port, uint8_t flag); // Opens a socket(TCP or UDP or IP_RAW mode)
-extern void close(SOCKET s); // Close socket
-extern uint8_t connect(SOCKET s, uint8_t * addr, uint16_t port); // Establish TCP connection (Active connection)
-extern void disconnect(SOCKET s); // disconnect the connection
-extern uint8_t listen(SOCKET s);	// Establish TCP connection (Passive connection)
-extern uint16_t send(SOCKET s, const uint8_t * buf, uint16_t len); // Send data (TCP)
-extern int16_t recv(SOCKET s, uint8_t * buf, int16_t len);	// Receive data (TCP)
-extern uint16_t peek(SOCKET s, uint8_t *buf);
-extern uint16_t sendto(SOCKET s, const uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t port); // Send data (UDP/IP RAW)
-extern uint16_t recvfrom(SOCKET s, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t *port); // Receive data (UDP/IP RAW)
-
-extern uint16_t igmpsend(SOCKET s, const uint8_t * buf, uint16_t len);
-
-// Functions to allow buffered UDP send (i.e. where the UDP datagram is built up over a
-// number of calls before being sent
-/*
-  @brief This function sets up a UDP datagram, the data for which will be provided by one
-  or more calls to bufferData and then finally sent with sendUDP.
-  @return 1 if the datagram was successfully set up, or 0 if there was an error
-*/
-extern int startUDP(SOCKET s, uint8_t* addr, uint16_t port);
-/*
-  @brief This function copies up to len bytes of data from buf into a UDP datagram to be
-  sent later by sendUDP.  Allows datagrams to be built up from a series of bufferData calls.
-  @return Number of bytes successfully buffered
-*/
-uint16_t bufferData(SOCKET s, uint16_t offset, const uint8_t* buf, uint16_t len);
-/*
-  @brief Send a UDP datagram built up from a sequence of startUDP followed by one or more
-  calls to bufferData.
-  @return 1 if the datagram was successfully sent, or 0 if there was an error
-*/
-int sendUDP(SOCKET s);
-
-#endif
-/* _SOCKET_H_ */
diff --git a/libraries/Ethernet/utility/w5100.cpp b/libraries/Ethernet/utility/w5100.cpp
deleted file mode 100644
index 9c748fd..0000000
--- a/libraries/Ethernet/utility/w5100.cpp
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
- * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st>
- *
- * This file is free software; you can redistribute it and/or modify
- * it under the terms of either the GNU General Public License version 2
- * or the GNU Lesser General Public License version 2.1, both as
- * published by the Free Software Foundation.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <avr/interrupt.h>
-
-#include "w5100.h"
-
-// W5100 controller instance
-W5100Class W5100;
-
-#define TX_RX_MAX_BUF_SIZE 2048
-#define TX_BUF 0x1100
-#define RX_BUF (TX_BUF + TX_RX_MAX_BUF_SIZE)
-
-#define TXBUF_BASE 0x4000
-#define RXBUF_BASE 0x6000
-
-void W5100Class::init(void)
-{
-  delay(300);
-
-  SPI.begin();
-  initSS();
-  
-  writeMR(1<<RST);
-  writeTMSR(0x55);
-  writeRMSR(0x55);
-
-  for (int i=0; i<MAX_SOCK_NUM; i++) {
-    SBASE[i] = TXBUF_BASE + SSIZE * i;
-    RBASE[i] = RXBUF_BASE + RSIZE * i;
-  }
-}
-
-uint16_t W5100Class::getTXFreeSize(SOCKET s)
-{
-  uint16_t val=0, val1=0;
-  do {
-    val1 = readSnTX_FSR(s);
-    if (val1 != 0)
-      val = readSnTX_FSR(s);
-  } 
-  while (val != val1);
-  return val;
-}
-
-uint16_t W5100Class::getRXReceivedSize(SOCKET s)
-{
-  uint16_t val=0,val1=0;
-  do {
-    val1 = readSnRX_RSR(s);
-    if (val1 != 0)
-      val = readSnRX_RSR(s);
-  } 
-  while (val != val1);
-  return val;
-}
-
-
-void W5100Class::send_data_processing(SOCKET s, const uint8_t *data, uint16_t len)
-{
-  // This is same as having no offset in a call to send_data_processing_offset
-  send_data_processing_offset(s, 0, data, len);
-}
-
-void W5100Class::send_data_processing_offset(SOCKET s, uint16_t data_offset, const uint8_t *data, uint16_t len)
-{
-  uint16_t ptr = readSnTX_WR(s);
-  ptr += data_offset;
-  uint16_t offset = ptr & SMASK;
-  uint16_t dstAddr = offset + SBASE[s];
-
-  if (offset + len > SSIZE) 
-  {
-    // Wrap around circular buffer
-    uint16_t size = SSIZE - offset;
-    write(dstAddr, data, size);
-    write(SBASE[s], data + size, len - size);
-  } 
-  else {
-    write(dstAddr, data, len);
-  }
-
-  ptr += len;
-  writeSnTX_WR(s, ptr);
-}
-
-
-void W5100Class::recv_data_processing(SOCKET s, uint8_t *data, uint16_t len, uint8_t peek)
-{
-  uint16_t ptr;
-  ptr = readSnRX_RD(s);
-  read_data(s, (uint8_t *)ptr, data, len);
-  if (!peek)
-  {
-    ptr += len;
-    writeSnRX_RD(s, ptr);
-  }
-}
-
-void W5100Class::read_data(SOCKET s, volatile uint8_t *src, volatile uint8_t *dst, uint16_t len)
-{
-  uint16_t size;
-  uint16_t src_mask;
-  uint16_t src_ptr;
-
-  src_mask = (uint16_t)src & RMASK;
-  src_ptr = RBASE[s] + src_mask;
-
-  if( (src_mask + len) > RSIZE ) 
-  {
-    size = RSIZE - src_mask;
-    read(src_ptr, (uint8_t *)dst, size);
-    dst += size;
-    read(RBASE[s], (uint8_t *) dst, len - size);
-  } 
-  else
-    read(src_ptr, (uint8_t *) dst, len);
-}
-
-
-uint8_t W5100Class::write(uint16_t _addr, uint8_t _data)
-{
-  setSS();  
-  SPI.transfer(0xF0);
-  SPI.transfer(_addr >> 8);
-  SPI.transfer(_addr & 0xFF);
-  SPI.transfer(_data);
-  resetSS();
-  return 1;
-}
-
-uint16_t W5100Class::write(uint16_t _addr, const uint8_t *_buf, uint16_t _len)
-{
-  for (uint16_t i=0; i<_len; i++)
-  {
-    setSS();    
-    SPI.transfer(0xF0);
-    SPI.transfer(_addr >> 8);
-    SPI.transfer(_addr & 0xFF);
-    _addr++;
-    SPI.transfer(_buf[i]);
-    resetSS();
-  }
-  return _len;
-}
-
-uint8_t W5100Class::read(uint16_t _addr)
-{
-  setSS();  
-  SPI.transfer(0x0F);
-  SPI.transfer(_addr >> 8);
-  SPI.transfer(_addr & 0xFF);
-  uint8_t _data = SPI.transfer(0);
-  resetSS();
-  return _data;
-}
-
-uint16_t W5100Class::read(uint16_t _addr, uint8_t *_buf, uint16_t _len)
-{
-  for (uint16_t i=0; i<_len; i++)
-  {
-    setSS();
-    SPI.transfer(0x0F);
-    SPI.transfer(_addr >> 8);
-    SPI.transfer(_addr & 0xFF);
-    _addr++;
-    _buf[i] = SPI.transfer(0);
-    resetSS();
-  }
-  return _len;
-}
-
-void W5100Class::execCmdSn(SOCKET s, SockCMD _cmd) {
-  // Send command to socket
-  writeSnCR(s, _cmd);
-  // Wait for command to complete
-  while (readSnCR(s))
-    ;
-}
diff --git a/libraries/Ethernet/utility/w5100.h b/libraries/Ethernet/utility/w5100.h
deleted file mode 100644
index 8dccd9f..0000000
--- a/libraries/Ethernet/utility/w5100.h
+++ /dev/null
@@ -1,404 +0,0 @@
-/*
- * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st>
- *
- * This file is free software; you can redistribute it and/or modify
- * it under the terms of either the GNU General Public License version 2
- * or the GNU Lesser General Public License version 2.1, both as
- * published by the Free Software Foundation.
- */
-
-#ifndef	W5100_H_INCLUDED
-#define	W5100_H_INCLUDED
-
-#include <avr/pgmspace.h>
-#include <SPI.h>
-
-#define MAX_SOCK_NUM 4
-
-typedef uint8_t SOCKET;
-
-#define IDM_OR  0x8000
-#define IDM_AR0 0x8001
-#define IDM_AR1 0x8002
-#define IDM_DR  0x8003
-/*
-class MR {
-public:
-  static const uint8_t RST   = 0x80;
-  static const uint8_t PB    = 0x10;
-  static const uint8_t PPPOE = 0x08;
-  static const uint8_t LB    = 0x04;
-  static const uint8_t AI    = 0x02;
-  static const uint8_t IND   = 0x01;
-};
-*/
-/*
-class IR {
-public:
-  static const uint8_t CONFLICT = 0x80;
-  static const uint8_t UNREACH  = 0x40;
-  static const uint8_t PPPoE    = 0x20;
-  static const uint8_t SOCK0    = 0x01;
-  static const uint8_t SOCK1    = 0x02;
-  static const uint8_t SOCK2    = 0x04;
-  static const uint8_t SOCK3    = 0x08;
-  static inline uint8_t SOCK(SOCKET ch) { return (0x01 << ch); };
-};
-*/
-
-class SnMR {
-public:
-  static const uint8_t CLOSE  = 0x00;
-  static const uint8_t TCP    = 0x01;
-  static const uint8_t UDP    = 0x02;
-  static const uint8_t IPRAW  = 0x03;
-  static const uint8_t MACRAW = 0x04;
-  static const uint8_t PPPOE  = 0x05;
-  static const uint8_t ND     = 0x20;
-  static const uint8_t MULTI  = 0x80;
-};
-
-enum SockCMD {
-  Sock_OPEN      = 0x01,
-  Sock_LISTEN    = 0x02,
-  Sock_CONNECT   = 0x04,
-  Sock_DISCON    = 0x08,
-  Sock_CLOSE     = 0x10,
-  Sock_SEND      = 0x20,
-  Sock_SEND_MAC  = 0x21,
-  Sock_SEND_KEEP = 0x22,
-  Sock_RECV      = 0x40
-};
-
-/*class SnCmd {
-public:
-  static const uint8_t OPEN      = 0x01;
-  static const uint8_t LISTEN    = 0x02;
-  static const uint8_t CONNECT   = 0x04;
-  static const uint8_t DISCON    = 0x08;
-  static const uint8_t CLOSE     = 0x10;
-  static const uint8_t SEND      = 0x20;
-  static const uint8_t SEND_MAC  = 0x21;
-  static const uint8_t SEND_KEEP = 0x22;
-  static const uint8_t RECV      = 0x40;
-};
-*/
-
-class SnIR {
-public:
-  static const uint8_t SEND_OK = 0x10;
-  static const uint8_t TIMEOUT = 0x08;
-  static const uint8_t RECV    = 0x04;
-  static const uint8_t DISCON  = 0x02;
-  static const uint8_t CON     = 0x01;
-};
-
-class SnSR {
-public:
-  static const uint8_t CLOSED      = 0x00;
-  static const uint8_t INIT        = 0x13;
-  static const uint8_t LISTEN      = 0x14;
-  static const uint8_t SYNSENT     = 0x15;
-  static const uint8_t SYNRECV     = 0x16;
-  static const uint8_t ESTABLISHED = 0x17;
-  static const uint8_t FIN_WAIT    = 0x18;
-  static const uint8_t CLOSING     = 0x1A;
-  static const uint8_t TIME_WAIT   = 0x1B;
-  static const uint8_t CLOSE_WAIT  = 0x1C;
-  static const uint8_t LAST_ACK    = 0x1D;
-  static const uint8_t UDP         = 0x22;
-  static const uint8_t IPRAW       = 0x32;
-  static const uint8_t MACRAW      = 0x42;
-  static const uint8_t PPPOE       = 0x5F;
-};
-
-class IPPROTO {
-public:
-  static const uint8_t IP   = 0;
-  static const uint8_t ICMP = 1;
-  static const uint8_t IGMP = 2;
-  static const uint8_t GGP  = 3;
-  static const uint8_t TCP  = 6;
-  static const uint8_t PUP  = 12;
-  static const uint8_t UDP  = 17;
-  static const uint8_t IDP  = 22;
-  static const uint8_t ND   = 77;
-  static const uint8_t RAW  = 255;
-};
-
-class W5100Class {
-
-public:
-  void init();
-
-  /**
-   * @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, volatile uint8_t * src, volatile uint8_t * dst, uint16_t len);
-  
-  /**
-   * @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, const uint8_t *data, uint16_t len);
-  /**
-   * @brief A copy of send_data_processing that uses the provided ptr for the
-   *        write offset.  Only needed for the "streaming" UDP API, where
-   *        a single UDP packet is built up over a number of calls to
-   *        send_data_processing_ptr, because TX_WR doesn't seem to get updated
-   *        correctly in those scenarios
-   * @param ptr value to use in place of TX_WR.  If 0, then the value is read
-   *        in from TX_WR
-   * @return New value for ptr, to be used in the next call
-   */
-// FIXME Update documentation
-  void send_data_processing_offset(SOCKET s, uint16_t data_offset, const uint8_t *data, uint16_t len);
-
-  /**
-   * @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_t *data, uint16_t len, uint8_t peek = 0);
-
-  inline void setGatewayIp(uint8_t *_addr);
-  inline void getGatewayIp(uint8_t *_addr);
-
-  inline void setSubnetMask(uint8_t *_addr);
-  inline void getSubnetMask(uint8_t *_addr);
-
-  inline void setMACAddress(uint8_t * addr);
-  inline void getMACAddress(uint8_t * addr);
-
-  inline void setIPAddress(uint8_t * addr);
-  inline void getIPAddress(uint8_t * addr);
-
-  inline void setRetransmissionTime(uint16_t timeout);
-  inline void setRetransmissionCount(uint8_t _retry);
-
-  void execCmdSn(SOCKET s, SockCMD _cmd);
-  
-  uint16_t getTXFreeSize(SOCKET s);
-  uint16_t getRXReceivedSize(SOCKET s);
-  
-
-  // W5100 Registers
-  // ---------------
-private:
-  static uint8_t write(uint16_t _addr, uint8_t _data);
-  static uint16_t write(uint16_t addr, const uint8_t *buf, uint16_t len);
-  static uint8_t read(uint16_t addr);
-  static uint16_t read(uint16_t addr, uint8_t *buf, uint16_t len);
-  
-#define __GP_REGISTER8(name, address)             \
-  static inline void write##name(uint8_t _data) { \
-    write(address, _data);                        \
-  }                                               \
-  static inline uint8_t read##name() {            \
-    return read(address);                         \
-  }
-#define __GP_REGISTER16(name, address)            \
-  static void write##name(uint16_t _data) {       \
-    write(address,   _data >> 8);                 \
-    write(address+1, _data & 0xFF);               \
-  }                                               \
-  static uint16_t read##name() {                  \
-    uint16_t res = read(address);                 \
-    res = (res << 8) + read(address + 1);         \
-    return res;                                   \
-  }
-#define __GP_REGISTER_N(name, address, size)      \
-  static uint16_t write##name(uint8_t *_buff) {   \
-    return write(address, _buff, size);           \
-  }                                               \
-  static uint16_t read##name(uint8_t *_buff) {    \
-    return read(address, _buff, size);            \
-  }
-
-public:
-  __GP_REGISTER8 (MR,     0x0000);    // Mode
-  __GP_REGISTER_N(GAR,    0x0001, 4); // Gateway IP address
-  __GP_REGISTER_N(SUBR,   0x0005, 4); // Subnet mask address
-  __GP_REGISTER_N(SHAR,   0x0009, 6); // Source MAC address
-  __GP_REGISTER_N(SIPR,   0x000F, 4); // Source IP address
-  __GP_REGISTER8 (IR,     0x0015);    // Interrupt
-  __GP_REGISTER8 (IMR,    0x0016);    // Interrupt Mask
-  __GP_REGISTER16(RTR,    0x0017);    // Timeout address
-  __GP_REGISTER8 (RCR,    0x0019);    // Retry count
-  __GP_REGISTER8 (RMSR,   0x001A);    // Receive memory size
-  __GP_REGISTER8 (TMSR,   0x001B);    // Transmit memory size
-  __GP_REGISTER8 (PATR,   0x001C);    // Authentication type address in PPPoE mode
-  __GP_REGISTER8 (PTIMER, 0x0028);    // PPP LCP Request Timer
-  __GP_REGISTER8 (PMAGIC, 0x0029);    // PPP LCP Magic Number
-  __GP_REGISTER_N(UIPR,   0x002A, 4); // Unreachable IP address in UDP mode
-  __GP_REGISTER16(UPORT,  0x002E);    // Unreachable Port address in UDP mode
-  
-#undef __GP_REGISTER8
-#undef __GP_REGISTER16
-#undef __GP_REGISTER_N
-
-  // W5100 Socket registers
-  // ----------------------
-private:
-  static inline uint8_t readSn(SOCKET _s, uint16_t _addr);
-  static inline uint8_t writeSn(SOCKET _s, uint16_t _addr, uint8_t _data);
-  static inline uint16_t readSn(SOCKET _s, uint16_t _addr, uint8_t *_buf, uint16_t len);
-  static inline uint16_t writeSn(SOCKET _s, uint16_t _addr, uint8_t *_buf, uint16_t len);
-
-  static const uint16_t CH_BASE = 0x0400;
-  static const uint16_t CH_SIZE = 0x0100;
-
-#define __SOCKET_REGISTER8(name, address)                    \
-  static inline void write##name(SOCKET _s, uint8_t _data) { \
-    writeSn(_s, address, _data);                             \
-  }                                                          \
-  static inline uint8_t read##name(SOCKET _s) {              \
-    return readSn(_s, address);                              \
-  }
-#define __SOCKET_REGISTER16(name, address)                   \
-  static void write##name(SOCKET _s, uint16_t _data) {       \
-    writeSn(_s, address,   _data >> 8);                      \
-    writeSn(_s, address+1, _data & 0xFF);                    \
-  }                                                          \
-  static uint16_t read##name(SOCKET _s) {                    \
-    uint16_t res = readSn(_s, address);                      \
-    uint16_t res2 = readSn(_s,address + 1);                  \
-    res = res << 8;                                          \
-    res2 = res2 & 0xFF;                                      \
-    res = res | res2;                                        \
-    return res;                                              \
-  }
-#define __SOCKET_REGISTER_N(name, address, size)             \
-  static uint16_t write##name(SOCKET _s, uint8_t *_buff) {   \
-    return writeSn(_s, address, _buff, size);                \
-  }                                                          \
-  static uint16_t read##name(SOCKET _s, uint8_t *_buff) {    \
-    return readSn(_s, address, _buff, size);                 \
-  }
-  
-public:
-  __SOCKET_REGISTER8(SnMR,        0x0000)        // Mode
-  __SOCKET_REGISTER8(SnCR,        0x0001)        // Command
-  __SOCKET_REGISTER8(SnIR,        0x0002)        // Interrupt
-  __SOCKET_REGISTER8(SnSR,        0x0003)        // Status
-  __SOCKET_REGISTER16(SnPORT,     0x0004)        // Source Port
-  __SOCKET_REGISTER_N(SnDHAR,     0x0006, 6)     // Destination Hardw Addr
-  __SOCKET_REGISTER_N(SnDIPR,     0x000C, 4)     // Destination IP Addr
-  __SOCKET_REGISTER16(SnDPORT,    0x0010)        // Destination Port
-  __SOCKET_REGISTER16(SnMSSR,     0x0012)        // Max Segment Size
-  __SOCKET_REGISTER8(SnPROTO,     0x0014)        // Protocol in IP RAW Mode
-  __SOCKET_REGISTER8(SnTOS,       0x0015)        // IP TOS
-  __SOCKET_REGISTER8(SnTTL,       0x0016)        // IP TTL
-  __SOCKET_REGISTER16(SnTX_FSR,   0x0020)        // TX Free Size
-  __SOCKET_REGISTER16(SnTX_RD,    0x0022)        // TX Read Pointer
-  __SOCKET_REGISTER16(SnTX_WR,    0x0024)        // TX Write Pointer
-  __SOCKET_REGISTER16(SnRX_RSR,   0x0026)        // RX Free Size
-  __SOCKET_REGISTER16(SnRX_RD,    0x0028)        // RX Read Pointer
-  __SOCKET_REGISTER16(SnRX_WR,    0x002A)        // RX Write Pointer (supported?)
-  
-#undef __SOCKET_REGISTER8
-#undef __SOCKET_REGISTER16
-#undef __SOCKET_REGISTER_N
-
-
-private:
-  static const uint8_t  RST = 7; // Reset BIT
-
-  static const int SOCKETS = 4;
-  static const uint16_t SMASK = 0x07FF; // Tx buffer MASK
-  static const uint16_t RMASK = 0x07FF; // Rx buffer MASK
-public:
-  static const uint16_t SSIZE = 2048; // Max Tx buffer size
-private:
-  static const uint16_t RSIZE = 2048; // Max Rx buffer size
-  uint16_t SBASE[SOCKETS]; // Tx buffer base address
-  uint16_t RBASE[SOCKETS]; // Rx buffer base address
-
-private:
-#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
-  inline static void initSS()    { DDRB  |=  _BV(4); };
-  inline static void setSS()     { PORTB &= ~_BV(4); };
-  inline static void resetSS()   { PORTB |=  _BV(4); };
-#elif defined(__AVR_ATmega32U4__)
-  inline static void initSS()    { DDRB  |=  _BV(6); };
-  inline static void setSS()     { PORTB &= ~_BV(6); };
-  inline static void resetSS()   { PORTB |=  _BV(6); }; 
-#elif defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB162__)
-  inline static void initSS()    { DDRB  |=  _BV(0); };
-  inline static void setSS()     { PORTB &= ~_BV(0); };
-  inline static void resetSS()   { PORTB |=  _BV(0); }; 
-#else
-  inline static void initSS()    { DDRB  |=  _BV(2); };
-  inline static void setSS()     { PORTB &= ~_BV(2); };
-  inline static void resetSS()   { PORTB |=  _BV(2); };
-#endif
-
-};
-
-extern W5100Class W5100;
-
-uint8_t W5100Class::readSn(SOCKET _s, uint16_t _addr) {
-  return read(CH_BASE + _s * CH_SIZE + _addr);
-}
-
-uint8_t W5100Class::writeSn(SOCKET _s, uint16_t _addr, uint8_t _data) {
-  return write(CH_BASE + _s * CH_SIZE + _addr, _data);
-}
-
-uint16_t W5100Class::readSn(SOCKET _s, uint16_t _addr, uint8_t *_buf, uint16_t _len) {
-  return read(CH_BASE + _s * CH_SIZE + _addr, _buf, _len);
-}
-
-uint16_t W5100Class::writeSn(SOCKET _s, uint16_t _addr, uint8_t *_buf, uint16_t _len) {
-  return write(CH_BASE + _s * CH_SIZE + _addr, _buf, _len);
-}
-
-void W5100Class::getGatewayIp(uint8_t *_addr) {
-  readGAR(_addr);
-}
-
-void W5100Class::setGatewayIp(uint8_t *_addr) {
-  writeGAR(_addr);
-}
-
-void W5100Class::getSubnetMask(uint8_t *_addr) {
-  readSUBR(_addr);
-}
-
-void W5100Class::setSubnetMask(uint8_t *_addr) {
-  writeSUBR(_addr);
-}
-
-void W5100Class::getMACAddress(uint8_t *_addr) {
-  readSHAR(_addr);
-}
-
-void W5100Class::setMACAddress(uint8_t *_addr) {
-  writeSHAR(_addr);
-}
-
-void W5100Class::getIPAddress(uint8_t *_addr) {
-  readSIPR(_addr);
-}
-
-void W5100Class::setIPAddress(uint8_t *_addr) {
-  writeSIPR(_addr);
-}
-
-void W5100Class::setRetransmissionTime(uint16_t _timeout) {
-  writeRTR(_timeout);
-}
-
-void W5100Class::setRetransmissionCount(uint8_t _retry) {
-  writeRCR(_retry);
-}
-
-#endif