【添加】WIZnet package

.gitignore

@@ -0,0 +1,52 @@
+# Prerequisites
+*.d
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+# Kernel Module Compile Results
+*.mod*
+*.cmd
+.tmp_versions/
+modules.order
+Module.symvers
+Mkfile.old
+dkms.conf

SConscript

@@ -0,0 +1,24 @@
+from building import *
+
+cwd  = GetCurrentDir()
+
+src  = Glob('src/*.c')
+src += Glob('iolibrary/Ethernet/*.c')
+src += Glob('iolibrary/Internet/DNS/*.c')
+
+if GetDepend(['WIZ_USING_DHCP']):
+    src += Glob('iolibrary/Internet/DHCP/*.c')
+
+if GetDepend(['WIZ_USING_W5500']):
+    src += Glob('iolibrary/Ethernet/W5500/*.c')
+    
+CPPPATH = [
+cwd + '/inc',
+cwd + '/iolibrary',
+cwd + '/iolibrary/Ethernet',
+cwd + '/iolibrary/Internet',
+]
+
+group = DefineGroup('WIZnet', src, depend = ['PKG_USING_WIZNET'], CPPPATH = CPPPATH)
+
+Return('group')

inc/wiz.h

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-09-26     chenyong     first version
+ */
+
+#ifndef __WIZ_H__
+#define __WIZ_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rtthread.h>
+
+#define WIZ_SW_VERSION       "0.1.0"
+#define WIZ_SW_VERSION_NUM   0x000100
+
+#ifndef WIZ_SOCKETS_NUM
+#define WIZ_SOCKETS_NUM      8
+#endif
+
+#ifndef WIZ_RX_MBOX_NUM
+#define WIZ_RX_MBOX_NUM      10
+#endif
+
+/* WIZnet set chip MAC address */
+int wiz_set_mac(const char *mac);
+/* WIZnet initialize device and network */
+int wiz_init(void);
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#endif /* __WIZ_H__ */

inc/wiz_socket.h

@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-09-26     chenyong     first version
+ */
+
+#ifndef __WIZ_SOCKET_H__
+#define __WIZ_SOCKET_H__
+
+#include <rtdevice.h>
+
+#include <netdb.h>
+#include <sys/socket.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* WIZnet socket magic word */
+#define WIZ_SOCKET_MAGIC               0x3120
+
+/* WIZnet Socket address family */
+#ifndef AF_WIZ
+#define AF_WIZ                         46
+#endif
+
+struct wiz_socket;
+/* A callback prototype to inform about events for wiznet socket */
+typedef void (* wiz_socket_callback)(struct wiz_socket *conn, int event, uint16_t len);
+
+struct wiz_socket
+{
+    /* WIZnet socket magic word */
+    uint32_t magic;
+
+    int socket;
+    /* type of the WIZnet socket (TCP, UDP or RAW) */
+    uint8_t type;
+    /* current state of the WIZnet socket */
+    uint8_t state;
+    /* receive semaphore, received data release semaphore */
+    rt_sem_t recv_notice;
+    rt_mutex_t recv_lock;
+
+    /* timeout to wait for send or receive data in milliseconds */
+    int32_t recv_timeout;
+    int32_t send_timeout;
+
+    /* A callback function that is informed about events for this AT socket */
+    wiz_socket_callback callback;
+
+    struct sockaddr *server_addr;
+    /* number of times data was received, set by event_callback() */
+    uint16_t rcvevent;
+    /* number of times data was ACKed (free send buffer), set by event_callback() */
+    uint16_t sendevent;
+    /* error happened for this socket, set by event_callback() */
+    uint16_t errevent;
+
+#ifdef SAL_USING_POSIX
+    rt_wqueue_t wait_head;
+#endif
+};
+
+int wiz_socket(int domain, int type, int protocol);
+int wiz_closesocket(int socket);
+int wiz_shutdown(int socket, int how);
+int wiz_bind(int socket, const struct sockaddr *name, socklen_t namelen);
+int wiz_connect(int socket, const struct sockaddr *name, socklen_t namelen);
+int wiz_sendto(int socket, const void *dwiza, size_t size, int flags, const struct sockaddr *to, socklen_t tolen);
+int wiz_send(int socket, const void *dwiza, size_t size, int flags);
+int wiz_recvfrom(int socket, void *mem, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen);
+int wiz_recv(int socket, void *mem, size_t len, int flags);
+int wiz_getsockopt(int socket, int level, int optname, void *optval, socklen_t *optlen);
+int wiz_setsockopt(int socket, int level, int optname, const void *optval, socklen_t optlen);
+struct hostent *wiz_gethostbyname(const char *name);
+int wiz_getaddrinfo(const char *nodename, const char *servname, const struct addrinfo *hints, struct addrinfo **res);
+void wiz_freeaddrinfo(struct addrinfo *ai);
+
+/* get WIZnet socket object */
+struct wiz_socket *wiz_get_socket(int socket);
+/* WIZnet chip TCP/IP protocol register */
+int wiz_inet_init(void);
+
+#ifdef  __cplusplus
+    }
+#endif
+
+#endif /* __WIZ_SOCKET_H__ */

iolibrary/Ethernet/W5500/w5500.c

@@ -0,0 +1,402 @@
+//*****************************************************************************
+//
+//! \file w5500.c
+//! \brief W5500 HAL Interface.
+//! \version 1.0.2
+//! \date 2013/10/21
+//! \par  Revision history
+//!       <2014/05/01> V1.0.2
+//!         1. Implicit type casting -> Explicit type casting. Refer to M20140501
+//!            Fixed the problem on porting into under 32bit MCU
+//!            Issued by Mathias ClauBen, wizwiki forum ID Think01 and bobh
+//!            Thank for your interesting and serious advices.
+//!       <2013/12/20> V1.0.1
+//!         1. Remove warning
+//!         2. WIZCHIP_READ_BUF WIZCHIP_WRITE_BUF in case _WIZCHIP_IO_MODE_SPI_FDM_
+//!            for loop optimized(removed). refer to M20131220
+//!       <2013/10/21> 1st Release
+//! \author MidnightCow
+//! \copyright
+//!
+//! Copyright (c)  2013, WIZnet Co., LTD.
+//! All rights reserved.
+//! 
+//! Redistribution and use in source and binary forms, with or without 
+//! modification, are permitted provided that the following conditions 
+//! are met: 
+//! 
+//!     * Redistributions of source code must retain the above copyright 
+//! notice, this list of conditions and the following disclaimer. 
+//!     * Redistributions in binary form must reproduce the above copyright
+//! notice, this list of conditions and the following disclaimer in the
+//! documentation and/or other materials provided with the distribution. 
+//!     * Neither the name of the <ORGANIZATION> nor the names of its 
+//! contributors may be used to endorse or promote products derived 
+//! from this software without specific prior written permission. 
+//! 
+//! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! THE POSSIBILITY OF SUCH DAMAGE.
+//
+//*****************************************************************************
+//#include <stdio.h>
+#include "w5500.h"
+#include <rtthread.h>
+#include <rtdevice.h>
+
+#define _W5500_SPI_VDM_OP_          0x00
+#define _W5500_SPI_FDM_OP_LEN1_     0x01
+#define _W5500_SPI_FDM_OP_LEN2_     0x02
+#define _W5500_SPI_FDM_OP_LEN4_     0x03
+
+extern struct rt_spi_device *wiz_device;
+////////////////////////////////////////////////////
+
+uint8_t  WIZCHIP_READ(uint32_t AddrSel)
+{
+    uint8_t addr[3] = {0};
+    uint8_t data[2] = {0};
+    
+    WIZCHIP_CRITICAL_ENTER();
+//    WIZCHIP.CS._select();
+
+#if( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SPI_))
+
+   #if  ( _WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_SPI_VDM_ )
+   	   AddrSel |= (_W5500_SPI_READ_ | _W5500_SPI_VDM_OP_);
+   #elif( _WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_SPI_FDM_ )
+   	   AddrSel |= (_W5500_SPI_READ_ | _W5500_SPI_FDM_OP_LEN1_);
+   #else
+      #error "Unsupported _WIZCHIP_IO_SPI_ in W5500 !!!"
+   #endif
+
+//    WIZCHIP.IF.SPI._write_byte((AddrSel & 0x00FF0000) >> 16);
+//    WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
+//    WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
+//    ret = WIZCHIP.IF.SPI._read_byte();
+    addr[0] = AddrSel>>16;
+    addr[1] = AddrSel>>8;
+    addr[2] = AddrSel>>0;
+    
+    rt_spi_send_then_recv(wiz_device, (const void *)addr, 3, (void *)data, 1);
+    
+
+#elif ( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_BUS_) )
+
+   #if  (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_DIR_)
+
+   #elif(_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_INDIR_)
+
+   #else
+      #error "Unsupported _WIZCHIP_IO_MODE_BUS_ in W5500 !!!"
+   #endif
+#else
+   #error "Unknown _WIZCHIP_IO_MODE_ in W5000. !!!"   
+#endif
+
+//    WIZCHIP.CS._deselect();
+    WIZCHIP_CRITICAL_EXIT();
+    return data[0];
+}
+
+void     WIZCHIP_WRITE(uint32_t AddrSel, uint8_t wb )
+{
+    uint8_t addr[3] = {0};
+    uint8_t data[2] = {0};
+    
+    WIZCHIP_CRITICAL_ENTER();
+//    WIZCHIP.CS._select();
+#if( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SPI_))
+
+   #if  ( _WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_SPI_VDM_ )
+   	   AddrSel |= (_W5500_SPI_WRITE_ | _W5500_SPI_VDM_OP_);
+   #elif( _WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_SPI_FDM_ )
+   	   AddrSel |= (_W5500_SPI_WRITE_ | _W5500_SPI_FDM_OP_LEN1_);
+   #else
+      #error "Unsupported _WIZCHIP_IO_SPI_ in W5500 !!!"
+   #endif
+
+//   WIZCHIP.IF.SPI._write_byte((AddrSel & 0x00FF0000) >> 16);
+//   WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
+//   WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
+//   WIZCHIP.IF.SPI._write_byte(wb);
+
+    addr[0] = AddrSel>>16;
+    addr[1] = AddrSel>>8;
+    addr[2] = AddrSel>>0;
+    data[0] = wb;
+    rt_spi_send_then_send(wiz_device, (const void *)addr, 3, (const void *)data, 1);
+
+#elif ( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_BUS_) )
+
+   #if  (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_DIR_)
+
+   #elif(_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_INDIR_)
+
+   #else
+      #error "Unsupported _WIZCHIP_IO_MODE_BUS_ in W5500 !!!"
+   #endif
+#else
+   #error "Unknown _WIZCHIP_IO_MODE_ in W5500. !!!"
+#endif
+
+//   WIZCHIP.CS._deselect();
+    WIZCHIP_CRITICAL_EXIT();
+}
+         
+void     WIZCHIP_READ_BUF (uint32_t AddrSel, uint8_t* pBuf, uint16_t len)
+{
+//    uint16_t i = 0;
+//    uint16_t j = 0;
+    uint8_t addr[3] = {0};
+    WIZCHIP_CRITICAL_ENTER();
+//    WIZCHIP.CS._select();
+
+#if( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SPI_))
+
+   #if  ( _WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_SPI_VDM_ )
+      AddrSel |= (_W5500_SPI_READ_ | _W5500_SPI_VDM_OP_);
+//    WIZCHIP.IF.SPI._write_byte((AddrSel & 0x00FF0000) >> 16);
+//    WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
+//    WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
+//    for (i = 0; i < len; i++, j)
+//        pBuf[i] = WIZCHIP.IF.SPI._read_byte();
+    addr[0] = AddrSel>>16;
+    addr[1] = AddrSel>>8;
+    addr[2] = AddrSel>>0;
+    
+     rt_spi_send_then_recv(wiz_device, (const void *)addr, 3, (void *)pBuf, len);
+    
+   #elif( _WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_SPI_FDM_ )
+      AddrSel |= (_W5500_SPI_READ_ | _W5500_SPI_FDM_OP_LEN4_);
+      for(i = 0; i < len/4; i++, j)
+      {
+         WIZCHIP.IF.SPI._write_byte((AddrSel & 0x00FF0000) >> 16);
+         WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
+         WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
+         pBuf[i*4]   = WIZCHIP.IF.SPI._read_byte();
+         pBuf[i*4+1] = WIZCHIP.IF.SPI._read_byte();
+         pBuf[i*4+2] = WIZCHIP.IF.SPI._read_byte();            
+         pBuf[i*4+3] = WIZCHIP.IF.SPI._read_byte();            
+         AddrSel = WIZCHIP_OFFSET_INC(AddrSel,4);
+      }
+      len %= 4;      // for the rest data
+      // M20131220 : remove for loop
+      i *= 4;        
+      if(len >= 2)
+      {
+         AddrSel -= 1;  // change _W5500_SPI_FDM_OP_LEN4_ to _W5500_SPI_FDM_OP_LEN2_
+
+       //for(j = 0; j < len/2 ; j++)
+         {
+            WIZCHIP.IF.SPI._write_byte((AddrSel & 0x00FF0000) >> 16);
+            WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
+            WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
+            pBuf[i]   = WIZCHIP.IF.SPI._read_byte();
+            pBuf[i+1] = WIZCHIP.IF.SPI._read_byte();
+            i += 2;
+            AddrSel = WIZCHIP_OFFSET_INC(AddrSel,2);
+         }
+      }
+      len %= 2;
+      if(len)
+      {
+        AddrSel -= 1;  // change _W5500_SPI_FDM_OP_LEN2_ to _W5500_SPI_FDM_OP_LEN1_
+        WIZCHIP.IF.SPI._write_byte((AddrSel & 0x00FF0000) >> 16);
+        WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
+        WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
+        pBuf[i]   = WIZCHIP.IF.SPI._read_byte();
+      }      
+   #else
+      #error "Unsupported _WIZCHIP_IO_MODE_SPI_ in W5500 !!!"
+   #endif
+
+#elif ( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_BUS_) )
+
+   #if  (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_DIR_)
+
+   #elif(_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_INDIR_)
+
+   #else
+      #error "Unsupported _WIZCHIP_IO_MODE_BUS_ in W5500 !!!"
+   #endif
+#else
+   #error "Unknown _WIZCHIP_IO_MODE_ in W5500. !!!!"
+#endif
+
+//    WIZCHIP.CS._deselect();
+    WIZCHIP_CRITICAL_EXIT();
+}
+
+void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len)
+{
+//    uint16_t i = 0;
+//    uint16_t j = 0;
+    
+    uint8_t addr[3] = {0}; 
+    WIZCHIP_CRITICAL_ENTER();
+//    WIZCHIP.CS._select();
+
+#if( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SPI_))
+
+   #if  ( _WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_SPI_VDM_ )
+      AddrSel |= (_W5500_SPI_WRITE_ | _W5500_SPI_VDM_OP_);
+//    WIZCHIP.IF.SPI._write_byte((AddrSel & 0x00FF0000) >> 16);
+//    WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
+//    WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
+//    for (i = 0; i < len; i++, j)
+//    {
+//        WIZCHIP.IF.SPI._write_byte(pBuf[i]);
+//    }
+    
+    addr[0] = AddrSel>>16;
+    addr[1] = AddrSel>>8;
+    addr[2] = AddrSel>>0;
+    
+    rt_spi_send_then_send(wiz_device, (const void *)addr, 3, (const void *)pBuf, len);
+    
+   #elif( _WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_SPI_FDM_ )
+      AddrSel |= (_W5500_SPI_WRITE_ | _W5500_SPI_FDM_OP_LEN4_);
+      for(i = 0; i < len/4; i++, j)
+      {
+         WIZCHIP.IF.SPI._write_byte((AddrSel & 0x00FF0000) >> 16);
+         WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
+         WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
+         WIZCHIP.IF.SPI._write_byte(pBuf[i*4]  );
+         WIZCHIP.IF.SPI._write_byte(pBuf[i*4+1]);
+         WIZCHIP.IF.SPI._write_byte(pBuf[i*4+2]);            
+         WIZCHIP.IF.SPI._write_byte(pBuf[i*4+3]);            
+         AddrSel = WIZCHIP_OFFSET_INC(AddrSel,4);
+      }
+      len %= 4;      // for the rest data
+      // M20131220 : Remove for loop
+      i *= 4;
+      if(len >= 2)
+      {
+         AddrSel -= 1;  // change _W5500_SPI_FDM_OP_LEN4_ to _W5500_SPI_FDM_OP_LEN2_
+
+       //for(j = 0; j < len/2 ; j++)
+         {
+            WIZCHIP.IF.SPI._write_byte((AddrSel & 0x00FF0000) >> 16);
+            WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
+            WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
+            WIZCHIP.IF.SPI._write_byte(pBuf[i]  );
+            WIZCHIP.IF.SPI._write_byte(pBuf[i+1]);
+            i += 2;
+            AddrSel = WIZCHIP_OFFSET_INC(AddrSel, 2);
+         }
+         len %= 2;
+         if(len)
+         {
+            AddrSel -= 1;  // change _W5500_SPI_FDM_OP_LEN2_ to _W5500_SPI_FDM_OP_LEN1_
+            WIZCHIP.IF.SPI._write_byte((AddrSel & 0x00FF0000) >> 16);
+            WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
+            WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
+            WIZCHIP.IF.SPI._write_byte(pBuf[i]);
+         }      
+      }
+   #else
+      #error "Unsupported _WIZCHIP_IO_SPI_ in W5500 !!!"
+   #endif
+
+#elif ( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_BUS_) )
+
+   #if  (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_DIR_)
+
+   #elif(_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_INDIR_)
+
+   #else
+      #error "Unsupported _WIZCHIP_IO_MODE_BUS_ in W5500 !!!"
+   #endif
+#else
+   #error "Unknown _WIZCHIP_IO_MODE_ in W5500. !!!!"
+#endif
+
+//    WIZCHIP.CS._deselect();
+    WIZCHIP_CRITICAL_EXIT();
+}
+
+
+uint16_t getSn_TX_FSR(uint8_t sn)
+{
+   uint16_t val=0,val1=0;
+   do
+   {
+      val1 = WIZCHIP_READ(Sn_TX_FSR(sn));
+      val1 = (val1 << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_TX_FSR(sn),1));
+      if (val1 != 0)
+      {
+        val = WIZCHIP_READ(Sn_TX_FSR(sn));
+        val = (val << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_TX_FSR(sn),1));
+      }
+   }while (val != val1);
+   return val;
+}
+
+
+uint16_t getSn_RX_RSR(uint8_t sn)
+{
+   uint16_t val=0,val1=0;
+   do
+   {
+      val1 = WIZCHIP_READ(Sn_RX_RSR(sn));
+      val1 = (val1 << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_RX_RSR(sn),1));
+      if (val1 != 0)
+      {
+        val = WIZCHIP_READ(Sn_RX_RSR(sn));
+        val = (val << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_RX_RSR(sn),1));
+      }
+   }while (val != val1);
+   return val;
+}
+
+void wiz_send_data(uint8_t sn, uint8_t *wizdata, uint16_t len)
+{
+   uint16_t ptr = 0;
+   uint32_t addrsel = 0;
+   if(len == 0)  return;
+   ptr = getSn_TX_WR(sn);
+   //M20140501 : implict type casting -> explict type casting
+   //addrsel = (ptr << 8) + (WIZCHIP_TXBUF_BLOCK(sn) << 3);
+   addrsel = ((uint32_t)ptr << 8) + (WIZCHIP_TXBUF_BLOCK(sn) << 3);
+   //
+   WIZCHIP_WRITE_BUF(addrsel,wizdata, len);
+   
+   ptr += len;
+   setSn_TX_WR(sn,ptr);
+}
+
+void wiz_recv_data(uint8_t sn, uint8_t *wizdata, uint16_t len)
+{
+   uint16_t ptr = 0;
+   uint32_t addrsel = 0;
+   
+   if(len == 0) return;
+   ptr = getSn_RX_RD(sn);
+   //M20140501 : implict type casting -> explict type casting
+   //addrsel = ((ptr << 8) + (WIZCHIP_RXBUF_BLOCK(sn) << 3);
+   addrsel = ((uint32_t)ptr << 8) + (WIZCHIP_RXBUF_BLOCK(sn) << 3);
+   //
+   WIZCHIP_READ_BUF(addrsel, wizdata, len);
+   ptr += len;
+   
+   setSn_RX_RD(sn,ptr);
+}
+
+
+void wiz_recv_ignore(uint8_t sn, uint16_t len)
+{
+   uint16_t ptr = 0;
+   ptr = getSn_RX_RD(sn);
+   ptr += len;
+   setSn_RX_RD(sn,ptr);
+}
+

iolibrary/Ethernet/W5500/w5500.h

@@ -0,0 +1,2056 @@
+//*****************************************************************************
+//
+//! \file w5500.h
+//! \brief W5500 HAL Header File.
+//! \version 1.0.0
+//! \date 2013/10/21
+//! \par  Revision history
+//!       <2013/10/21> 1st Release
+//! \author MidnightCow
+//! \copyright
+//!
+//! Copyright (c)  2013, WIZnet Co., LTD.
+//! All rights reserved.
+//! 
+//! Redistribution and use in source and binary forms, with or without 
+//! modification, are permitted provided that the following conditions 
+//! are met: 
+//! 
+//!     * Redistributions of source code must retain the above copyright 
+//! notice, this list of conditions and the following disclaimer. 
+//!     * Redistributions in binary form must reproduce the above copyright
+//! notice, this list of conditions and the following disclaimer in the
+//! documentation and/or other materials provided with the distribution. 
+//!     * Neither the name of the <ORGANIZATION> nor the names of its 
+//! contributors may be used to endorse or promote products derived 
+//! from this software without specific prior written permission. 
+//! 
+//! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! THE POSSIBILITY OF SUCH DAMAGE.
+//
+//*****************************************************************************
+
+#ifndef  _W5500_H_
+#define  _W5500_H_
+
+#include <stdint.h>
+#include "Ethernet/wizchip_conf.h"
+
+#define _W5500_IO_BASE_              0x00000000
+
+#define _W5500_SPI_READ_			   (0x00 << 2) //< SPI interface Read operation in Control Phase
+#define _W5500_SPI_WRITE_			   (0x01 << 2) //< SPI interface Write operation in Control Phase
+
+#define WIZCHIP_CREG_BLOCK          0x00 	//< Common register block
+#define WIZCHIP_SREG_BLOCK(N)       (1+4*N) //< Socket N register block
+#define WIZCHIP_TXBUF_BLOCK(N)      (2+4*N) //< Socket N Tx buffer address block
+#define WIZCHIP_RXBUF_BLOCK(N)      (3+4*N) //< Socket N Rx buffer address block
+
+#define WIZCHIP_OFFSET_INC(ADDR, N)    (ADDR + (N<<8)) //< Increase offset address
+
+
+///////////////////////////////////////
+// Definition For Legacy Chip Driver //
+///////////////////////////////////////
+#define IINCHIP_READ(ADDR)                WIZCHIP_READ(ADDR)               ///< The defined for legacy chip driver
+#define IINCHIP_WRITE(ADDR,VAL)           WIZCHIP_WRITE(ADDR,VAL)          ///< The defined for legacy chip driver
+#define IINCHIP_READ_BUF(ADDR,BUF,LEN)    WIZCHIP_READ_BUF(ADDR,BUF,LEN)   ///< The defined for legacy chip driver
+#define IINCHIP_WRITE_BUF(ADDR,BUF,LEN)   WIZCHIP_WRITE(ADDR,BUF,LEN)      ///< The defined for legacy chip driver
+
+//////////////////////////////
+//--------------------------  defgroup ---------------------------------
+/**
+ * @defgroup W5500 W5500
+ *
+ * @brief WHIZCHIP register defines and I/O functions of @b W5500.
+ *
+ * - @ref WIZCHIP_register : @ref Common_register_group and @ref Socket_register_group
+ * - @ref WIZCHIP_IO_Functions : @ref Basic_IO_function, @ref Common_register_access_function and @ref Socket_register_access_function
+ */
+ 
+ 
+/**
+ * @defgroup WIZCHIP_register WIZCHIP register
+ * @ingroup W5500
+ *
+ * @brief WHIZCHIP register defines register group of @b W5500.
+ *
+ * - @ref Common_register_group : Common register group
+ * - @ref Socket_register_group : \c SOCKET n register group
+ */
+
+
+/**
+ * @defgroup WIZCHIP_IO_Functions WIZCHIP I/O functions
+ * @ingroup W5500
+ *
+ * @brief This supports the basic I/O functions for @ref WIZCHIP_register.
+ *
+ * - <b> Basic I/O function </b> \n
+ *   WIZCHIP_READ(), WIZCHIP_WRITE(), WIZCHIP_READ_BUF(), WIZCHIP_WRITE_BUF() \n\n
+ *
+ * - @ref Common_register_group <b>access functions</b> \n
+ * 	-# @b Mode \n
+ *    getMR(), setMR()
+ * 	-# @b Interrupt \n
+ *    getIR(), setIR(), getIMR(), setIMR(), getSIR(), setSIR(), getSIMR(), setSIMR(), getINTLEVEL(), setINTLEVEL()
+ * 	-# <b> Network Information </b> \n
+ *    getSHAR(), setSHAR(), getGAR(), setGAR(), getSUBR(), setSUBR(), getSIPR(), setSIPR()
+ * 	-# @b Retransmission \n
+ *    getRCR(), setRCR(), getRTR(), setRTR()
+ * 	-# @b PPPoE \n
+ *    getPTIMER(), setPTIMER(), getPMAGIC(), getPMAGIC(), getPSID(), setPSID(), getPHAR(), setPHAR(), getPMRU(), setPMRU()
+ * 	-# <b> ICMP packet </b>\n
+ *    getUIPR(), getUPORTR()
+ * 	-# @b etc. \n
+ *    getPHYCFGR(), setPHYCFGR(), getVERSIONR() \n\n
+ *
+ * - \ref Socket_register_group <b>access functions</b> \n
+ *   -# <b> SOCKET control</b> \n
+ *      getSn_MR(), setSn_MR(), getSn_CR(), setSn_CR(), getSn_IMR(), setSn_IMR(), getSn_IR(), setSn_IR()
+ *   -# <b> SOCKET information</b> \n
+ *      getSn_SR(), getSn_DHAR(), setSn_DHAR(), getSn_PORT(), setSn_PORT(), getSn_DIPR(), setSn_DIPR(), getSn_DPORT(), setSn_DPORT()
+ *      getSn_MSSR(), setSn_MSSR()
+ *   -# <b> SOCKET communication </b> \n
+ *      getSn_RXBUF_SIZE(), setSn_RXBUF_SIZE(), getSn_TXBUF_SIZE(), setSn_TXBUF_SIZE() \n
+ *      getSn_TX_RD(), getSn_TX_WR(), setSn_TX_WR() \n
+ *      getSn_RX_RD(), setSn_RX_RD(), getSn_RX_WR() \n
+ *      getSn_TX_FSR(), getSn_RX_RSR(), getSn_KPALVTR(), setSn_KPALVTR()
+ *   -# <b> IP header field </b> \n
+ *      getSn_FRAG(), setSn_FRAG(),  getSn_TOS(), setSn_TOS() \n
+ *      getSn_TTL(), setSn_TTL()
+ */
+
+
+
+/**
+ * @defgroup Common_register_group Common register
+ * @ingroup WIZCHIP_register
+ *
+ * @brief Common register group\n
+ * It set the basic for the networking\n
+ * It set the configuration such as interrupt, network information, ICMP, etc.
+ * @details
+ * @sa MR : Mode register.
+ * @sa GAR, SUBR, SHAR, SIPR
+ * @sa INTLEVEL, IR, IMR, SIR, SIMR : Interrupt.
+ * @sa RTR, RCR : Data retransmission.
+ * @sa PTIMER, PMAGIC, PHAR, PSID, PMRU : PPPoE.
+ * @sa UIPR, UPORTR : ICMP message.
+ * @sa PHYCFGR, VERSIONR : etc.
+ */
+ 
+  
+ 
+/**
+ * @defgroup Socket_register_group Socket register
+ * @ingroup WIZCHIP_register
+ *
+ * @brief Socket register group.\n
+ * Socket register configures and control SOCKETn which is necessary to data communication.
+ * @details
+ * @sa Sn_MR, Sn_CR, Sn_IR, Sn_IMR : SOCKETn Control
+ * @sa Sn_SR, Sn_PORT, Sn_DHAR, Sn_DIPR, Sn_DPORT : SOCKETn Information
+ * @sa Sn_MSSR, Sn_TOS, Sn_TTL, Sn_KPALVTR, Sn_FRAG : Internet protocol.
+ * @sa Sn_RXBUF_SIZE, Sn_TXBUF_SIZE, Sn_TX_FSR, Sn_TX_RD, Sn_TX_WR, Sn_RX_RSR, Sn_RX_RD, Sn_RX_WR : Data communication
+ */
+ 
+ 
+ 
+ /**
+ * @defgroup Basic_IO_function Basic I/O function
+ * @ingroup WIZCHIP_IO_Functions
+ * @brief These are basic input/output functions to read values from register or write values to register.
+ */
+
+/**
+ * @defgroup Common_register_access_function Common register access functions
+ * @ingroup WIZCHIP_IO_Functions
+ * @brief These are functions to access <b>common registers</b>.
+ */
+
+/**
+ * @defgroup Socket_register_access_function Socket register access functions
+ * @ingroup WIZCHIP_IO_Functions
+ * @brief These are functions to access <b>socket registers</b>.
+ */
+ 
+//------------------------------- defgroup end --------------------------------------------
+//----------------------------- W5500 Common Registers IOMAP -----------------------------
+/**
+ * @ingroup Common_register_group
+ * @brief Mode Register address(R/W)\n
+ * @ref MR is used for S/W reset, ping block mode, PPPoE mode and etc.
+ * @details Each bit of @ref MR defined as follows.
+ * <table>
+ * 		<tr>  <td>7</td> <td>6</td> <td>5</td> <td>4</td> <td>3</td> <td>2</td> <td>1</td> <td>0</td>   </tr>
+ * 		<tr>  <td>RST</td> <td>Reserved</td> <td>WOL</td> <td>PB</td> <td>PPPoE</td> <td>Reserved</td> <td>FARP</td> <td>Reserved</td> </tr>
+ * </table>
+ * - \ref MR_RST		 	: Reset
+ * - \ref MR_WOL       		: Wake on LAN
+ * - \ref MR_PB         	: Ping block
+ * - \ref MR_PPPOE      	: PPPoE mode
+ * - \ref MR_FARP			: Force ARP mode
+ */
+#define MR                 (_W5500_IO_BASE_ + (0x0000 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief Gateway IP Register address(R/W)
+ * @details @ref GAR configures the default gateway address.
+ */
+#define GAR                (_W5500_IO_BASE_ + (0x0001 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief Subnet mask Register address(R/W)
+ * @details @ref SUBR configures the subnet mask address.
+ */
+#define SUBR               (_W5500_IO_BASE_ + (0x0005 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief Source MAC Register address(R/W)
+ * @details @ref SHAR configures the source hardware address.
+ */
+#define SHAR               (_W5500_IO_BASE_ + (0x0009 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief Source IP Register address(R/W)
+ * @details @ref SIPR configures the source IP address.
+ */
+#define SIPR               (_W5500_IO_BASE_ + (0x000F << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief Set Interrupt low level timer register address(R/W)
+ * @details @ref INTLEVEL configures the Interrupt Assert Time.
+ */
+#define INTLEVEL           (_W5500_IO_BASE_ + (0x0013 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief Interrupt Register(R/W)
+ * @details @ref IR indicates the interrupt status. Each bit of @ref IR will be still until the bit will be written to by the host.
+ * If @ref IR is not equal to x00 INTn PIN is asserted to low until it is x00\n\n
+ * Each bit of @ref IR defined as follows.
+ * <table>
+ * 		<tr>  <td>7</td> <td>6</td> <td>5</td> <td>4</td> <td>3</td> <td>2</td> <td>1</td> <td>0</td>   </tr>
+ * 		<tr>  <td>CONFLICT</td> <td>UNREACH</td> <td>PPPoE</td> <td>MP</td> <td>Reserved</td> <td>Reserved</td> <td>Reserved</td> <td>Reserved</td> </tr>
+ * </table>
+ * - \ref IR_CONFLICT : IP conflict
+ * - \ref IR_UNREACH  : Destination unreachable
+ * - \ref IR_PPPoE	  : PPPoE connection close
+ * - \ref IR_MP		  : Magic packet
+ */
+#define IR                 (_W5500_IO_BASE_ + (0x0015 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief Interrupt mask register(R/W)
+ * @details @ref IMR is used to mask interrupts. Each bit of @ref IMR corresponds to each bit of @ref IR.
+ * When a bit of @ref IMR is and the corresponding bit of @ref IR is  an interrupt will be issued. In other words,
+ * if a bit of @ref IMR is  an interrupt will not be issued even if the corresponding bit of @ref IR is \n\n
+ * Each bit of @ref IMR defined as the following.
+ * <table>
+ * 		<tr>  <td>7</td> <td>6</td> <td>5</td> <td>4</td> <td>3</td> <td>2</td> <td>1</td> <td>0</td>   </tr>
+ * 		<tr>  <td>IM_IR7</td> <td>IM_IR6</td> <td>IM_IR5</td> <td>IM_IR4</td> <td>Reserved</td> <td>Reserved</td> <td>Reserved</td> <td>Reserved</td> </tr>
+ * </table>
+ * - \ref IM_IR7 : IP Conflict Interrupt Mask
+ * - \ref IM_IR6 : Destination unreachable Interrupt Mask
+ * - \ref IM_IR5 : PPPoE Close Interrupt Mask
+ * - \ref IM_IR4 : Magic Packet Interrupt Mask
+ */
+#define IMR                (_W5500_IO_BASE_ + (0x0016 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief Socket Interrupt Register(R/W)
+ * @details @ref SIR indicates the interrupt status of Socket.\n
+ * Each bit of @ref SIR be still until @ref Sn_IR is cleared by the host.\n
+ * If @ref Sn_IR is not equal to x00 the n-th bit of @ref SIR is and INTn PIN is asserted until @ref SIR is x00 */
+#define SIR                (_W5500_IO_BASE_ + (0x0017 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief Socket Interrupt Mask Register(R/W)
+ * @details Each bit of @ref SIMR corresponds to each bit of @ref SIR.
+ * When a bit of @ref SIMR is and the corresponding bit of @ref SIR is  Interrupt will be issued.
+ * In other words, if a bit of @ref SIMR is  an interrupt will be not issued even if the corresponding bit of @ref SIR is 
+ */
+#define SIMR               (_W5500_IO_BASE_ + (0x0018 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief Timeout register address( 1 is 100us )(R/W)
+ * @details @ref RTR configures the retransmission timeout period. The unit of timeout period is 100us and the default of @ref RTR is x07D0or 000
+ * And so the default timeout period is 200ms(100us X 2000). During the time configured by @ref RTR, W5500 waits for the peer response
+ * to the packet that is transmitted by \ref Sn_CR (CONNECT, DISCON, CLOSE, SEND, SEND_MAC, SEND_KEEP command).
+ * If the peer does not respond within the @ref RTR time, W5500 retransmits the packet or issues timeout.
+ */
+#define RTR                (_W5500_IO_BASE_ + (0x0019 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief Retry count register(R/W)
+ * @details @ref RCR configures the number of time of retransmission.
+ * When retransmission occurs as many as ref RCR+1 Timeout interrupt is issued (@ref Sn_IR[TIMEOUT] = .
+ */
+#define RCR                (_W5500_IO_BASE_ + (0x001B << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief PPP LCP Request Timer register  in PPPoE mode(R/W)
+ * @details @ref PTIMER configures the time for sending LCP echo request. The unit of time is 25ms.
+ */
+#define PTIMER             (_W5500_IO_BASE_ + (0x001C << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief PPP LCP Magic number register  in PPPoE mode(R/W)
+ * @details @ref PMAGIC configures the 4bytes magic number to be used in LCP negotiation.
+ */
+#define PMAGIC             (_W5500_IO_BASE_ + (0x001D << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief PPP Destination MAC Register address(R/W)
+ * @details @ref PHAR configures the PPPoE server hardware address that is acquired during PPPoE connection process.
+ */
+#define PHAR                (_W5500_IO_BASE_ + (0x001E << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief PPP Session Identification Register(R/W)
+ * @details @ref PSID configures the PPPoE sever session ID acquired during PPPoE connection process.
+ */
+#define PSID               (_W5500_IO_BASE_ + (0x0024 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief PPP Maximum Segment Size(MSS) register(R/W)
+ * @details @ref PMRU configures the maximum receive unit of PPPoE.
+ */
+#define PMRU               (_W5500_IO_BASE_ + (0x0026 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief Unreachable IP register address in UDP mode(R)
+ * @details W5500 receives an ICMP packet(Destination port unreachable) when data is sent to a port number
+ * which socket is not open and @ref UNREACH bit of @ref IR becomes and @ref UIPR & @ref UPORTR indicates
+ * the destination IP address & port number respectively.
+ */
+#define UIPR               (_W5500_IO_BASE_ + (0x0028 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief Unreachable Port register address in UDP mode(R)
+ * @details W5500 receives an ICMP packet(Destination port unreachable) when data is sent to a port number
+ * which socket is not open and @ref UNREACH bit of @ref IR becomes and @ref UIPR & @ref UPORTR
+ * indicates the destination IP address & port number respectively.
+ */
+#define UPORTR              (_W5500_IO_BASE_ + (0x002C << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief PHY Status Register(R/W)
+ * @details @ref PHYCFGR configures PHY operation mode and resets PHY. In addition, @ref PHYCFGR indicates the status of PHY such as duplex, Speed, Link.
+ */
+#define PHYCFGR            (_W5500_IO_BASE_ + (0x002E << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+// Reserved			         (_W5500_IO_BASE_ + (0x002F << 8) + (WIZCHIP_CREG_BLOCK << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x0030 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x0031 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x0032 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x0033 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x0034 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x0035 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x0036 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x0037 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x0038 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+/**
+ * @ingroup Common_register_group
+ * @brief chip version register address(R)
+ * @details @ref VERSIONR always indicates the W5500 version as @b 0x04.
+ */
+#define VERSIONR           (_W5500_IO_BASE_ + (0x0039 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+
+
+//----------------------------- W5500 Socket Registers IOMAP -----------------------------
+/**
+ * @ingroup Socket_register_group
+ * @brief socket Mode register(R/W)
+ * @details @ref Sn_MR configures the option or protocol type of Socket n.\n\n
+ * Each bit of @ref Sn_MR defined as the following.
+ * <table>
+ * 		<tr>  <td>7</td> <td>6</td> <td>5</td> <td>4</td> <td>3</td> <td>2</td> <td>1</td> <td>0</td>   </tr>
+ * 		<tr>  <td>MULTI/MFEN</td> <td>BCASTB</td> <td>ND/MC/MMB</td> <td>UCASTB/MIP6B</td> <td>Protocol[3]</td> <td>Protocol[2]</td> <td>Protocol[1]</td> <td>Protocol[0]</td> </tr>
+ * </table>
+ * - @ref Sn_MR_MULTI	: Support UDP Multicasting
+ * - @ref Sn_MR_BCASTB	: Broadcast block <b>in UDP Multicasting</b>
+ * - @ref Sn_MR_ND		: No Delayed Ack(TCP) flag
+ * - @ref Sn_MR_MC   	: IGMP version used <b>in UDP mulitcasting</b>
+ * - @ref Sn_MR_MMB    	: Multicast Blocking <b>in @ref Sn_MR_MACRAW mode</b>
+ * - @ref Sn_MR_UCASTB	: Unicast Block <b>in UDP Multicating</b>
+ * - @ref Sn_MR_MIP6B   : IPv6 packet Blocking <b>in @ref Sn_MR_MACRAW mode</b>
+ * - <b>Protocol</b>
+ * <table>
+ * 		<tr>   <td><b>Protocol[3]</b></td> <td><b>Protocol[2]</b></td> <td><b>Protocol[1]</b></td> <td><b>Protocol[0]</b></td> <td>@b Meaning</td>   </tr>
+ * 		<tr>   <td>0</td> <td>0</td> <td>0</td> <td>0</td> <td>Closed</td>   </tr>
+ * 		<tr>   <td>0</td> <td>0</td> <td>0</td> <td>1</td> <td>TCP</td>   </tr>
+ * 		<tr>   <td>0</td> <td>0</td> <td>1</td> <td>0</td> <td>UDP</td>   </tr>
+ * 		<tr>   <td>0</td> <td>1</td> <td>0</td> <td>0</td> <td>MACRAW</td>   </tr>
+ * </table>
+ *	- @ref Sn_MR_MACRAW	: MAC LAYER RAW SOCK \n
+ *  - @ref Sn_MR_UDP		: UDP
+ *  - @ref Sn_MR_TCP		: TCP
+ *  - @ref Sn_MR_CLOSE	: Unused socket
+ *  @note MACRAW mode should be only used in Socket 0.
+ */
+#define Sn_MR(N)           (_W5500_IO_BASE_ + (0x0000 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Socket command register(R/W)
+ * @details This is used to set the command for Socket n such as OPEN, CLOSE, CONNECT, LISTEN, SEND, and RECEIVE.\n
+ * After W5500 accepts the command, the @ref Sn_CR register is automatically cleared to 0x00.
+ * Even though @ref Sn_CR is cleared to 0x00, the command is still being processed.\n
+ * To check whether the command is completed or not, please check the @ref Sn_IR or @ref Sn_SR.
+ * - @ref Sn_CR_OPEN 		: Initialize or open socket.
+ * - @ref Sn_CR_LISTEN 		: Wait connection request in TCP mode(<b>Server mode</b>)
+ * - @ref Sn_CR_CONNECT 	: Send connection request in TCP mode(<b>Client mode</b>)
+ * - @ref Sn_CR_DISCON 		: Send closing request in TCP mode.
+ * - @ref Sn_CR_CLOSE   	: Close socket.
+ * - @ref Sn_CR_SEND    	: Update TX buffer pointer and send data.
+ * - @ref Sn_CR_SEND_MAC	: Send data with MAC address, so without ARP process.
+ * - @ref Sn_CR_SEND_KEEP 	: Send keep alive message.
+ * - @ref Sn_CR_RECV		: Update RX buffer pointer and receive data.
+ */
+#define Sn_CR(N)           (_W5500_IO_BASE_ + (0x0001 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Socket interrupt register(R)
+ * @details @ref Sn_IR indicates the status of Socket Interrupt such as establishment, termination, receiving data, timeout).\n
+ * When an interrupt occurs and the corresponding bit of @ref Sn_IMR is  the corresponding bit of @ref Sn_IR becomes \n
+ * In order to clear the @ref Sn_IR bit, the host should write the bit to \n
+ * <table>
+ * 		<tr>  <td>7</td> <td>6</td> <td>5</td> <td>4</td> <td>3</td> <td>2</td> <td>1</td> <td>0</td>   </tr>
+ * 		<tr>  <td>Reserved</td> <td>Reserved</td> <td>Reserved</td> <td>SEND_OK</td> <td>TIMEOUT</td> <td>RECV</td> <td>DISCON</td> <td>CON</td> </tr>
+ * </table>
+ * - \ref Sn_IR_SENDOK : <b>SEND_OK Interrupt</b>
+ * - \ref Sn_IR_TIMEOUT : <b>TIMEOUT Interrupt</b>
+ * - \ref Sn_IR_RECV : <b>RECV Interrupt</b>
+ * - \ref Sn_IR_DISCON : <b>DISCON Interrupt</b>
+ * - \ref Sn_IR_CON : <b>CON Interrupt</b>
+ */
+#define Sn_IR(N)           (_W5500_IO_BASE_ + (0x0002 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Socket status register(R)
+ * @details @ref Sn_SR indicates the status of Socket n.\n
+ * The status of Socket n is changed by @ref Sn_CR or some special control packet as SYN, FIN packet in TCP.
+ * @par Normal status
+ * - @ref SOCK_CLOSED 		: Closed
+ * - @ref SOCK_INIT   		: Initiate state
+ * - @ref SOCK_LISTEN    	: Listen state
+ * - @ref SOCK_ESTABLISHED 	: Success to connect
+ * - @ref SOCK_CLOSE_WAIT   : Closing state
+ * - @ref SOCK_UDP   		: UDP socket
+ * - @ref SOCK_MACRAW  		: MAC raw mode socket
+ *@par Temporary status during changing the status of Socket n.
+ * - @ref SOCK_SYNSENT   	: This indicates Socket n sent the connect-request packet (SYN packet) to a peer.
+ * - @ref SOCK_SYNRECV    	: It indicates Socket n successfully received the connect-request packet (SYN packet) from a peer.
+ * - @ref SOCK_FIN_WAIT		: Connection state
+ * - @ref SOCK_CLOSING		: Closing state
+ * - @ref SOCK_TIME_WAIT	: Closing state
+ * - @ref SOCK_LAST_ACK 	: Closing state
+ */
+#define Sn_SR(N)           (_W5500_IO_BASE_ + (0x0003 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief source port register(R/W)
+ * @details @ref Sn_PORT configures the source port number of Socket n.
+ * It is valid when Socket n is used in TCP/UPD mode. It should be set before OPEN command is ordered.
+ */
+#define Sn_PORT(N)         (_W5500_IO_BASE_ + (0x0004 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Peer MAC register address(R/W)
+ * @details @ref Sn_DHAR configures the destination hardware address of Socket n when using SEND_MAC command in UDP mode or
+ * it indicates that it is acquired in ARP-process by CONNECT/SEND command.
+ */
+#define Sn_DHAR(N)         (_W5500_IO_BASE_ + (0x0006 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Peer IP register address(R/W)
+ * @details @ref Sn_DIPR configures or indicates the destination IP address of Socket n. It is valid when Socket n is used in TCP/UDP mode.
+ * In TCP client mode, it configures an IP address of �TCP serverbefore CONNECT command.
+ * In TCP server mode, it indicates an IP address of �TCP clientafter successfully establishing connection.
+ * In UDP mode, it configures an IP address of peer to be received the UDP packet by SEND or SEND_MAC command.
+ */
+#define Sn_DIPR(N)         (_W5500_IO_BASE_ + (0x000C << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Peer port register address(R/W)
+ * @details @ref Sn_DPORT configures or indicates the destination port number of Socket n. It is valid when Socket n is used in TCP/UDP mode.
+ * In �TCP clientmode, it configures the listen port number of �TCP serverbefore CONNECT command.
+ * In �TCP Servermode, it indicates the port number of TCP client after successfully establishing connection.
+ * In UDP mode, it configures the port number of peer to be transmitted the UDP packet by SEND/SEND_MAC command.
+ */
+#define Sn_DPORT(N)        (_W5500_IO_BASE_ + (0x0010 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Maximum Segment Size(Sn_MSSR0) register address(R/W)
+ * @details @ref Sn_MSSR configures or indicates the MTU(Maximum Transfer Unit) of Socket n.
+ */
+#define Sn_MSSR(N)         (_W5500_IO_BASE_ + (0x0012 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+// Reserved			         (_W5500_IO_BASE_ + (0x0014 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief IP Type of Service(TOS) Register(R/W)
+ * @details @ref Sn_TOS configures the TOS(Type Of Service field in IP Header) of Socket n.
+ * It is set before OPEN command.
+ */
+#define Sn_TOS(N)          (_W5500_IO_BASE_ + (0x0015 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+/**
+ * @ingroup Socket_register_group
+ * @brief IP Time to live(TTL) Register(R/W)
+ * @details @ref Sn_TTL configures the TTL(Time To Live field in IP header) of Socket n.
+ * It is set before OPEN command.
+ */
+#define Sn_TTL(N)          (_W5500_IO_BASE_ + (0x0016 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x0017 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x0018 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3)) 
+// Reserved			         (_W5500_IO_BASE_ + (0x0019 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x001A << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x001B << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x001C << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+// Reserved			         (_W5500_IO_BASE_ + (0x001D << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Receive memory size register(R/W)
+ * @details @ref Sn_RXBUF_SIZE configures the RX buffer block size of Socket n.
+ * Socket n RX Buffer Block size can be configured with 1,2,4,8, and 16 Kbytes.
+ * If a different size is configured, the data cannot be normally received from a peer.
+ * Although Socket n RX Buffer Block size is initially configured to 2Kbytes,
+ * user can re-configure its size using @ref Sn_RXBUF_SIZE. The total sum of @ref Sn_RXBUF_SIZE can not be exceed 16Kbytes.
+ * When exceeded, the data reception error is occurred.
+ */
+#define Sn_RXBUF_SIZE(N)   (_W5500_IO_BASE_ + (0x001E << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Transmit memory size register(R/W)
+ * @details @ref Sn_TXBUF_SIZE configures the TX buffer block size of Socket n. Socket n TX Buffer Block size can be configured with 1,2,4,8, and 16 Kbytes.
+ * If a different size is configured, the data can�t be normally transmitted to a peer.
+ * Although Socket n TX Buffer Block size is initially configured to 2Kbytes,
+ * user can be re-configure its size using @ref Sn_TXBUF_SIZE. The total sum of @ref Sn_TXBUF_SIZE can not be exceed 16Kbytes.
+ * When exceeded, the data transmission error is occurred.
+ */
+#define Sn_TXBUF_SIZE(N)   (_W5500_IO_BASE_ + (0x001F << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Transmit free memory size register(R)
+ * @details @ref Sn_TX_FSR indicates the free size of Socket n TX Buffer Block. It is initialized to the configured size by @ref Sn_TXBUF_SIZE.
+ * Data bigger than @ref Sn_TX_FSR should not be saved in the Socket n TX Buffer because the bigger data overwrites the previous saved data not yet sent.
+ * Therefore, check before saving the data to the Socket n TX Buffer, and if data is equal or smaller than its checked size,
+ * transmit the data with SEND/SEND_MAC command after saving the data in Socket n TX buffer. But, if data is bigger than its checked size,
+ * transmit the data after dividing into the checked size and saving in the Socket n TX buffer.
+ */
+#define Sn_TX_FSR(N)       (_W5500_IO_BASE_ + (0x0020 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Transmit memory read pointer register address(R)
+ * @details @ref Sn_TX_RD is initialized by OPEN command. However, if Sn_MR(P[3:0]) is TCP mode(001, it is re-initialized while connecting with TCP.
+ * After its initialization, it is auto-increased by SEND command.
+ * SEND command transmits the saved data from the current @ref Sn_TX_RD to the @ref Sn_TX_WR in the Socket n TX Buffer.
+ * After transmitting the saved data, the SEND command increases the @ref Sn_TX_RD as same as the @ref Sn_TX_WR.
+ * If its increment value exceeds the maximum value 0xFFFF, (greater than 0x10000 and the carry bit occurs),
+ * then the carry bit is ignored and will automatically update with the lower 16bits value.
+ */
+#define Sn_TX_RD(N)        (_W5500_IO_BASE_ + (0x0022 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Transmit memory write pointer register address(R/W)
+ * @details @ref Sn_TX_WR is initialized by OPEN command. However, if Sn_MR(P[3:0]) is TCP mode(001, it is re-initialized while connecting with TCP.\n
+ * It should be read or be updated like as follows.\n
+ * 1. Read the starting address for saving the transmitting data.\n
+ * 2. Save the transmitting data from the starting address of Socket n TX buffer.\n
+ * 3. After saving the transmitting data, update @ref Sn_TX_WR to the increased value as many as transmitting data size.
+ * If the increment value exceeds the maximum value 0xFFFF(greater than 0x10000 and the carry bit occurs),
+ * then the carry bit is ignored and will automatically update with the lower 16bits value.\n
+ * 4. Transmit the saved data in Socket n TX Buffer by using SEND/SEND command
+ */
+#define Sn_TX_WR(N)        (_W5500_IO_BASE_ + (0x0024 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Received data size register(R)
+ * @details @ref Sn_RX_RSR indicates the data size received and saved in Socket n RX Buffer.
+ * @ref Sn_RX_RSR does not exceed the @ref Sn_RXBUF_SIZE and is calculated as the difference between
+ * �Socket n RX Write Pointer (@ref Sn_RX_WR)and �Socket n RX Read Pointer (@ref Sn_RX_RD)
+ */
+#define Sn_RX_RSR(N)       (_W5500_IO_BASE_ + (0x0026 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Read point of Receive memory(R/W)
+ * @details @ref Sn_RX_RD is initialized by OPEN command. Make sure to be read or updated as follows.\n
+ * 1. Read the starting save address of the received data.\n
+ * 2. Read data from the starting address of Socket n RX Buffer.\n
+ * 3. After reading the received data, Update @ref Sn_RX_RD to the increased value as many as the reading size.
+ * If the increment value exceeds the maximum value 0xFFFF, that is, is greater than 0x10000 and the carry bit occurs,
+ * update with the lower 16bits value ignored the carry bit.\n
+ * 4. Order RECV command is for notifying the updated @ref Sn_RX_RD to W5500.
+ */
+#define Sn_RX_RD(N)        (_W5500_IO_BASE_ + (0x0028 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Write point of Receive memory(R)
+ * @details @ref Sn_RX_WR is initialized by OPEN command and it is auto-increased by the data reception.
+ * If the increased value exceeds the maximum value 0xFFFF, (greater than 0x10000 and the carry bit occurs),
+ * then the carry bit is ignored and will automatically update with the lower 16bits value.
+ */
+#define Sn_RX_WR(N)        (_W5500_IO_BASE_ + (0x002A << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief socket interrupt mask register(R)
+ * @details @ref Sn_IMR masks the interrupt of Socket n.
+ * Each bit corresponds to each bit of @ref Sn_IR. When a Socket n Interrupt is occurred and the corresponding bit of @ref Sn_IMR is 
+ * the corresponding bit of @ref Sn_IR becomes  When both the corresponding bit of @ref Sn_IMR and @ref Sn_IR are and the n-th bit of @ref IR is 
+ * Host is interrupted by asserted INTn PIN to low.
+ */
+#define Sn_IMR(N)          (_W5500_IO_BASE_ + (0x002C << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Fragment field value in IP header register(R/W)
+ * @details @ref Sn_FRAG configures the FRAG(Fragment field in IP header).
+ */
+#define Sn_FRAG(N)         (_W5500_IO_BASE_ + (0x002D << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+/**
+ * @ingroup Socket_register_group
+ * @brief Keep Alive Timer register(R/W)
+ * @details @ref Sn_KPALVTR configures the transmitting timer of �KEEP ALIVE(KA)packet of SOCKETn. It is valid only in TCP mode,
+ * and ignored in other modes. The time unit is 5s.
+ * KA packet is transmittable after @ref Sn_SR is changed to SOCK_ESTABLISHED and after the data is transmitted or received to/from a peer at least once.
+ * In case of '@ref Sn_KPALVTR > 0', W5500 automatically transmits KA packet after time-period for checking the TCP connection (Auto-keepalive-process).
+ * In case of '@ref Sn_KPALVTR = 0', Auto-keep-alive-process will not operate,
+ * and KA packet can be transmitted by SEND_KEEP command by the host (Manual-keep-alive-process).
+ * Manual-keep-alive-process is ignored in case of '@ref Sn_KPALVTR > 0'.
+ */
+#define Sn_KPALVTR(N)      (_W5500_IO_BASE_ + (0x002F << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+//#define Sn_TSR(N)          (_W5500_IO_BASE_ + (0x0030 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
+
+
+//----------------------------- W5500 Register values  -----------------------------
+
+/* MODE register values */
+/**
+ * @brief Reset
+ * @details If this bit is  All internal registers will be initialized. It will be automatically cleared as after S/W reset.
+ */
+#define MR_RST                       0x80
+
+/**
+ * @brief Wake on LAN
+ * @details 0 : Disable WOL mode\n
+ * 1 : Enable WOL mode\n
+ * If WOL mode is enabled and the received magic packet over UDP has been normally processed, the Interrupt PIN (INTn) asserts to low.
+ * When using WOL mode, the UDP Socket should be opened with any source port number. (Refer to Socket n Mode Register (@ref Sn_MR) for opening Socket.)
+ * @note The magic packet over UDP supported by W5500 consists of 6 bytes synchronization stream (xFFFFFFFFFFFF and
+ * 16 times Target MAC address stream in UDP payload. The options such like password are ignored. You can use any UDP source port number for WOL mode.
+ */
+#define MR_WOL                       0x20
+
+/**
+ * @brief Ping block
+ * @details 0 : Disable Ping block\n
+ * 1 : Enable Ping block\n
+ * If the bit is  it blocks the response to a ping request.
+ */
+#define MR_PB                        0x10
+
+/**
+ * @brief Enable PPPoE
+ * @details 0 : DisablePPPoE mode\n
+ * 1 : EnablePPPoE mode\n
+ * If you use ADSL, this bit should be 
+ */
+#define MR_PPPOE                     0x08
+
+/**
+ * @brief Enable UDP_FORCE_ARP CHECHK
+ * @details 0 : Disable Force ARP mode\n
+ * 1 : Enable Force ARP mode\n
+ * In Force ARP mode, It forces on sending ARP Request whenever data is sent.
+ */
+#define MR_FARP                      0x02
+
+/* IR register values */
+/**
+ * @brief Check IP conflict.
+ * @details Bit is set as when own source IP address is same with the sender IP address in the received ARP request.
+ */
+#define IR_CONFLICT                  0x80
+
+/**
+ * @brief Get the destination unreachable message in UDP sending.
+ * @details When receiving the ICMP (Destination port unreachable) packet, this bit is set as 
+ * When this bit is  Destination Information such as IP address and Port number may be checked with the corresponding @ref UIPR & @ref UPORTR.
+ */
+#define IR_UNREACH                   0x40
+
+/**
+ * @brief Get the PPPoE close message.
+ * @details When PPPoE is disconnected during PPPoE mode, this bit is set.
+ */
+#define IR_PPPoE                     0x20
+
+/**
+ * @brief Get the magic packet interrupt.
+ * @details When WOL mode is enabled and receives the magic packet over UDP, this bit is set.
+ */
+#define IR_MP                        0x10
+
+
+/* PHYCFGR register value */
+#define PHYCFGR_RST                  ~(1<<7)  //< For PHY reset, must operate AND mask.
+#define PHYCFGR_OPMD                 (1<<6)   // Configre PHY with OPMDC value
+#define PHYCFGR_OPMDC_ALLA           (7<<3)
+#define PHYCFGR_OPMDC_PDOWN          (6<<3)
+#define PHYCFGR_OPMDC_NA             (5<<3)
+#define PHYCFGR_OPMDC_100FA          (4<<3)
+#define PHYCFGR_OPMDC_100F           (3<<3)
+#define PHYCFGR_OPMDC_100H           (2<<3)
+#define PHYCFGR_OPMDC_10F            (1<<3)
+#define PHYCFGR_OPMDC_10H            (0<<3)           
+#define PHYCFGR_DPX_FULL             (1<<2)
+#define PHYCFGR_DPX_HALF             (0<<2)
+#define PHYCFGR_SPD_100              (1<<1)
+#define PHYCFGR_SPD_10               (0<<1)
+#define PHYCFGR_LNK_ON               (1<<0)
+#define PHYCFGR_LNK_OFF              (0<<0)
+
+/* IMR register values */
+/**
+ * @brief IP Conflict Interrupt Mask.
+ * @details 0: Disable IP Conflict Interrupt\n
+ * 1: Enable IP Conflict Interrupt
+ */
+#define IM_IR7                  	 0x80
+
+/**
+ * @brief Destination unreachable Interrupt Mask.
+ * @details 0: Disable Destination unreachable Interrupt\n
+ * 1: Enable Destination unreachable Interrupt
+ */
+#define IM_IR6                  	 0x40
+
+/**
+ * @brief PPPoE Close Interrupt Mask.
+ * @details 0: Disable PPPoE Close Interrupt\n
+ * 1: Enable PPPoE Close Interrupt
+ */
+#define IM_IR5                  	 0x20
+
+/**
+ * @brief Magic Packet Interrupt Mask.
+ * @details 0: Disable Magic Packet Interrupt\n
+ * 1: Enable Magic Packet Interrupt
+ */
+#define IM_IR4                  	 0x10
+
+/* Sn_MR Default values */
+/**
+ * @brief Support UDP Multicasting
+ * @details 0 : disable Multicasting\n
+ * 1 : enable Multicasting\n
+ * This bit is applied only during UDP mode(P[3:0] = 010.\n
+ * To use multicasting, @ref Sn_DIPR & @ref Sn_DPORT should be respectively configured with the multicast group IP address & port number
+ * before Socket n is opened by OPEN command of @ref Sn_CR.
+ */
+#define Sn_MR_MULTI                  0x80
+
+/**
+ * @brief Broadcast block in UDP Multicasting.
+ * @details 0 : disable Broadcast Blocking\n
+ * 1 : enable Broadcast Blocking\n
+ * This bit blocks to receive broadcasting packet during UDP mode(P[3:0] = 010.\m
+ * In addition, This bit does when MACRAW mode(P[3:0] = 100
+ */
+#define Sn_MR_BCASTB                 0x40
+
+/**
+ * @brief No Delayed Ack(TCP), Multicast flag
+ * @details 0 : Disable No Delayed ACK option\n
+ * 1 : Enable No Delayed ACK option\n
+ * This bit is applied only during TCP mode (P[3:0] = 001.\n
+ * When this bit is  It sends the ACK packet without delay as soon as a Data packet is received from a peer.\n
+ * When this bit is  It sends the ACK packet after waiting for the timeout time configured by @ref RTR.
+ */
+#define Sn_MR_ND                     0x20
+
+/**
+ * @brief Unicast Block in UDP Multicasting
+ * @details 0 : disable Unicast Blocking\n
+ * 1 : enable Unicast Blocking\n
+ * This bit blocks receiving the unicast packet during UDP mode(P[3:0] = 010 and MULTI = 
+ */
+#define Sn_MR_UCASTB                 0x10
+
+/**
+ * @brief MAC LAYER RAW SOCK
+ * @details This configures the protocol mode of Socket n.
+ * @note MACRAW mode should be only used in Socket 0.
+ */
+#define Sn_MR_MACRAW                 0x04
+
+//#define Sn_MR_IPRAW                  0x03     /**< IP LAYER RAW SOCK */
+
+/**
+ * @brief UDP
+ * @details This configures the protocol mode of Socket n.
+ */
+#define Sn_MR_UDP                    0x02
+
+/**
+ * @brief TCP
+ * @details This configures the protocol mode of Socket n.
+ */
+#define Sn_MR_TCP                    0x01
+
+/**
+ * @brief Unused socket
+ * @details This configures the protocol mode of Socket n.
+ */
+#define Sn_MR_CLOSE                  0x00
+
+/* Sn_MR values used with Sn_MR_MACRAW */
+/**
+ * @brief MAC filter enable in @ref Sn_MR_MACRAW mode
+ * @details 0 : disable MAC Filtering\n
+ * 1 : enable MAC Filtering\n
+ * This bit is applied only during MACRAW mode(P[3:0] = 100.\n
+ * When set as  W5500 can only receive broadcasting packet or packet sent to itself.
+ * When this bit is  W5500 can receive all packets on Ethernet.
+ * If user wants to implement Hybrid TCP/IP stack,
+ * it is recommended that this bit is set as for reducing host overhead to process the all received packets.
+ */
+#define Sn_MR_MFEN                   Sn_MR_MULTI
+
+/**
+ * @brief Multicast Blocking in @ref Sn_MR_MACRAW mode
+ * @details 0 : using IGMP version 2\n
+ * 1 : using IGMP version 1\n
+ * This bit is applied only during UDP mode(P[3:0] = 010 and MULTI = 
+ * It configures the version for IGMP messages (Join/Leave/Report).
+ */
+#define Sn_MR_MMB                    Sn_MR_ND
+
+/**
+ * @brief IPv6 packet Blocking in @ref Sn_MR_MACRAW mode
+ * @details 0 : disable IPv6 Blocking\n
+ * 1 : enable IPv6 Blocking\n
+ * This bit is applied only during MACRAW mode (P[3:0] = 100. It blocks to receiving the IPv6 packet.
+ */
+#define Sn_MR_MIP6B                  Sn_MR_UCASTB
+
+/* Sn_MR value used with Sn_MR_UDP & Sn_MR_MULTI */
+/**
+ * @brief IGMP version used in UDP mulitcasting
+ * @details 0 : disable Multicast Blocking\n
+ * 1 : enable Multicast Blocking\n
+ * This bit is applied only when MACRAW mode(P[3:0] = 100. It blocks to receive the packet with multicast MAC address.
+ */
+#define Sn_MR_MC                     Sn_MR_ND
+
+/* Sn_MR alternate values */
+/**
+ * @brief For Berkeley Socket API
+ */
+#ifndef SOCK_STREAM
+#define SOCK_STREAM                  Sn_MR_TCP
+#endif
+/**
+ * @brief For Berkeley Socket API
+ */
+#ifndef SOCK_DGRAM
+#define SOCK_DGRAM                   Sn_MR_UDP
+#endif
+
+/* Sn_CR values */
+/**
+ * @brief Initialize or open socket
+ * @details Socket n is initialized and opened according to the protocol selected in Sn_MR(P3:P0).
+ * The table below shows the value of @ref Sn_SR corresponding to @ref Sn_MR.\n
+ * <table>
+ *   <tr>  <td>\b Sn_MR (P[3:0])</td> <td>\b Sn_SR</td>            		 </tr>
+ *   <tr>  <td>Sn_MR_CLOSE  (000</td> <td></td>         	   		 </tr>
+ *   <tr>  <td>Sn_MR_TCP  (001</td> <td>SOCK_INIT (0x13)</td>  		 </tr>
+ *   <tr>  <td>Sn_MR_UDP  (010</td>  <td>SOCK_UDP (0x22)</td>  		 </tr>
+ *   <tr>  <td>S0_MR_MACRAW  (100</td>  <td>SOCK_MACRAW (0x02)</td>  </tr>
+ * </table>
+ */
+#define Sn_CR_OPEN                   0x01
+
+/**
+ * @brief Wait connection request in TCP mode(Server mode)
+ * @details This is valid only in TCP mode (Sn_MR(P3:P0) = Sn_MR_TCP).
+ * In this mode, Socket n operates as a �TCP serverand waits for  connection-request (SYN packet) from any �TCP client
+ * The @ref Sn_SR changes the state from SOCK_INIT to SOCKET_LISTEN.
+ * When a �TCP clientconnection request is successfully established,
+ * the @ref Sn_SR changes from SOCK_LISTEN to SOCK_ESTABLISHED and the Sn_IR(0) becomes 
+ * But when a �TCP clientconnection request is failed, Sn_IR(3) becomes and the status of @ref Sn_SR changes to SOCK_CLOSED.
+ */
+#define Sn_CR_LISTEN                 0x02
+
+/**
+ * @brief Send connection request in TCP mode(Client mode)
+ * @details  To connect, a connect-request (SYN packet) is sent to b>TCP server</b>configured by @ref Sn_DIPR & Sn_DPORT(destination address & port).
+ * If the connect-request is successful, the @ref Sn_SR is changed to @ref SOCK_ESTABLISHED and the Sn_IR(0) becomes \n\n
+ * The connect-request fails in the following three cases.\n
+ * 1. When a @b ARPTO occurs (@ref Sn_IR[3] =  ) because destination hardware address is not acquired through the ARP-process.\n
+ * 2. When a @b SYN/ACK packet is not received and @b TCPTO (Sn_IR(3) =  )\n
+ * 3. When a @b RST packet is received instead of a @b SYN/ACK packet. In these cases, @ref Sn_SR is changed to @ref SOCK_CLOSED.
+ * @note This is valid only in TCP mode and operates when Socket n acts as b>TCP client</b>
+ */
+#define Sn_CR_CONNECT                0x04
+
+/**
+ * @brief Send closing request in TCP mode
+ * @details Regardless of b>TCP server</b>or b>TCP client</b> the DISCON command processes the disconnect-process (b>Active close</b>or b>Passive close</b>.\n
+ * @par Active close
+ * it transmits disconnect-request(FIN packet) to the connected peer\n
+ * @par Passive close
+ * When FIN packet is received from peer, a FIN packet is replied back to the peer.\n
+ * @details When the disconnect-process is successful (that is, FIN/ACK packet is received successfully), @ref Sn_SR is changed to @ref SOCK_CLOSED.\n
+ * Otherwise, TCPTO occurs (Sn_IR(3)=)= and then @ref Sn_SR is changed to @ref SOCK_CLOSED.
+ * @note Valid only in TCP mode.
+ */
+#define Sn_CR_DISCON                 0x08
+
+/**
+ * @brief Close socket
+ * @details Sn_SR is changed to @ref SOCK_CLOSED.
+ */
+#define Sn_CR_CLOSE                  0x10
+
+/**
+ * @brief Update TX buffer pointer and send data
+ * @details SEND transmits all the data in the Socket n TX buffer.\n
+ * For more details, please refer to Socket n TX Free Size Register (@ref Sn_TX_FSR), Socket n,
+ * TX Write Pointer Register(@ref Sn_TX_WR), and Socket n TX Read Pointer Register(@ref Sn_TX_RD).
+ */
+#define Sn_CR_SEND                   0x20
+
+/**
+ * @brief Send data with MAC address, so without ARP process
+ * @details The basic operation is same as SEND.\n
+ * Normally SEND transmits data after destination hardware address is acquired by the automatic ARP-process(Address Resolution Protocol).\n
+ * But SEND_MAC transmits data without the automatic ARP-process.\n
+ * In this case, the destination hardware address is acquired from @ref Sn_DHAR configured by host, instead of APR-process.
+ * @note Valid only in UDP mode.
+ */
+#define Sn_CR_SEND_MAC               0x21
+
+/**
+ * @brief Send keep alive message
+ * @details It checks the connection status by sending 1byte keep-alive packet.\n
+ * If the peer can not respond to the keep-alive packet during timeout time, the connection is terminated and the timeout interrupt will occur.
+ * @note Valid only in TCP mode.
+ */
+#define Sn_CR_SEND_KEEP              0x22
+
+/**
+ * @brief Update RX buffer pointer and receive data
+ * @details RECV completes the processing of the received data in Socket n RX Buffer by using a RX read pointer register (@ref Sn_RX_RD).\n
+ * For more details, refer to Socket n RX Received Size Register (@ref Sn_RX_RSR), Socket n RX Write Pointer Register (@ref Sn_RX_WR),
+ * and Socket n RX Read Pointer Register (@ref Sn_RX_RD).
+ */
+#define Sn_CR_RECV                   0x40
+
+/* Sn_IR values */
+/**
+ * @brief SEND_OK Interrupt
+ * @details This is issued when SEND command is completed.
+ */
+#define Sn_IR_SENDOK                 0x10
+
+/**
+ * @brief TIMEOUT Interrupt
+ * @details This is issued when ARPTO or TCPTO occurs.
+ */
+#define Sn_IR_TIMEOUT                0x08
+
+/**
+ * @brief RECV Interrupt
+ * @details This is issued whenever data is received from a peer.
+ */
+#define Sn_IR_RECV                   0x04
+
+/**
+ * @brief DISCON Interrupt
+ * @details This is issued when FIN or FIN/ACK packet is received from a peer.
+ */
+#define Sn_IR_DISCON                 0x02
+
+/**
+ * @brief CON Interrupt
+ * @details This is issued one time when the connection with peer is successful and then @ref Sn_SR is changed to @ref SOCK_ESTABLISHED.
+ */
+#define Sn_IR_CON                    0x01
+
+/* Sn_SR values */
+/**
+ * @brief Closed
+ * @details This indicates that Socket n is released.\N
+ * When DICON, CLOSE command is ordered, or when a timeout occurs, it is changed to @ref SOCK_CLOSED regardless of previous status.
+ */
+#define SOCK_CLOSED                  0x00
+
+/**
+ * @brief Initiate state
+ * @details This indicates Socket n is opened with TCP mode.\N
+ * It is changed to @ref SOCK_INIT when Sn_MR(P[3:0]) = 001and OPEN command is ordered.\N
+ * After @ref SOCK_INIT, user can use LISTEN /CONNECT command.
+ */
+#define SOCK_INIT                    0x13
+
+/**
+ * @brief Listen state
+ * @details This indicates Socket n is operating as b>TCP server</b>mode and waiting for connection-request (SYN packet) from a peer (b>TCP client</b>.\n
+ * It will change to @ref SOCK_ESTALBLISHED when the connection-request is successfully accepted.\n
+ * Otherwise it will change to @ref SOCK_CLOSED after TCPTO occurred (Sn_IR(TIMEOUT) = .
+ */
+#define SOCK_LISTEN                  0x14
+
+/**
+ * @brief Connection state
+ * @details This indicates Socket n sent the connect-request packet (SYN packet) to a peer.\n
+ * It is temporarily shown when @ref Sn_SR is changed from @ref SOCK_INIT to @ref SOCK_ESTABLISHED by CONNECT command.\n
+ * If connect-accept(SYN/ACK packet) is received from the peer at SOCK_SYNSENT, it changes to @ref SOCK_ESTABLISHED.\n
+ * Otherwise, it changes to @ref SOCK_CLOSED after TCPTO (@ref Sn_IR[TIMEOUT] =  is occurred.
+ */
+#define SOCK_SYNSENT                 0x15
+
+/**
+ * @brief Connection state
+ * @details It indicates Socket n successfully received the connect-request packet (SYN packet) from a peer.\n
+ * If socket n sends the response (SYN/ACK  packet) to the peer successfully,  it changes to @ref SOCK_ESTABLISHED. \n
+ * If not, it changes to @ref SOCK_CLOSED after timeout occurs (@ref Sn_IR[TIMEOUT] = .
+ */
+#define SOCK_SYNRECV                 0x16
+
+/**
+ * @brief Success to connect
+ * @details This indicates the status of the connection of Socket n.\n
+ * It changes to @ref SOCK_ESTABLISHED when the b>TCP SERVER</b>processed the SYN packet from the b>TCP CLIENT</b>during @ref SOCK_LISTEN, or
+ * when the CONNECT command is successful.\n
+ * During @ref SOCK_ESTABLISHED, DATA packet can be transferred using SEND or RECV command.
+ */
+#define SOCK_ESTABLISHED             0x17
+
+/**
+ * @brief Closing state
+ * @details These indicate Socket n is closing.\n
+ * These are shown in disconnect-process such as active-close and passive-close.\n
+ * When Disconnect-process is successfully completed, or when timeout occurs, these change to @ref SOCK_CLOSED.
+ */
+#define SOCK_FIN_WAIT                0x18
+
+/**
+ * @brief Closing state
+ * @details These indicate Socket n is closing.\n
+ * These are shown in disconnect-process such as active-close and passive-close.\n
+ * When Disconnect-process is successfully completed, or when timeout occurs, these change to @ref SOCK_CLOSED.
+ */
+#define SOCK_CLOSING                 0x1A
+
+/**
+ * @brief Closing state
+ * @details These indicate Socket n is closing.\n
+ * These are shown in disconnect-process such as active-close and passive-close.\n
+ * When Disconnect-process is successfully completed, or when timeout occurs, these change to @ref SOCK_CLOSED.
+ */
+#define SOCK_TIME_WAIT               0x1B
+
+/**
+ * @brief Closing state
+ * @details This indicates Socket n received the disconnect-request (FIN packet) from the connected peer.\n
+ * This is half-closing status, and data can be transferred.\n
+ * For full-closing, DISCON command is used. But For just-closing, CLOSE command is used.
+ */
+#define SOCK_CLOSE_WAIT              0x1C
+
+/**
+ * @brief Closing state
+ * @details This indicates Socket n is waiting for the response (FIN/ACK packet) to the disconnect-request (FIN packet) by passive-close.\n
+ * It changes to @ref SOCK_CLOSED when Socket n received the response successfully, or when timeout occurs  (@ref Sn_IR[TIMEOUT] = .
+ */
+#define SOCK_LAST_ACK                0x1D
+
+/**
+ * @brief UDP socket
+ * @details This indicates Socket n is opened in UDP mode(Sn_MR(P[3:0]) = 010.\n
+ * It changes to SOCK_UPD when Sn_MR(P[3:0]) = 010 and OPEN command is ordered.\n
+ * Unlike TCP mode, data can be transfered without the connection-process.
+ */
+#define SOCK_UDP                     0x22
+
+//#define SOCK_IPRAW                   0x32     /**< IP raw mode socket */
+
+/**
+ * @brief MAC raw mode socket
+ * @details This indicates Socket 0 is opened in MACRAW mode (S0_MR(P[3:0]) = 100and is valid only in Socket 0.\n
+ * It changes to SOCK_MACRAW when S0_MR(P[3:0] = 100and OPEN command is ordered.\n
+ * Like UDP mode socket, MACRAW mode Socket 0 can transfer a MAC packet (Ethernet frame) without the connection-process.
+ */
+#define SOCK_MACRAW                  0x42
+
+//#define SOCK_PPPOE                   0x5F
+
+/* 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
+
+
+/**
+ * @brief Enter a critical section
+ *
+ * @details It is provided to protect your shared code which are executed without distribution. \n \n
+ *
+ * In non-OS environment, It can be just implemented by disabling whole interrupt.\n
+ * In OS environment, You can replace it to critical section api supported by OS.
+ *
+ * \sa WIZCHIP_READ(), WIZCHIP_WRITE(), WIZCHIP_READ_BUF(), WIZCHIP_WRITE_BUF()
+ * \sa WIZCHIP_CRITICAL_EXIT()
+ */
+#define WIZCHIP_CRITICAL_ENTER()    WIZCHIP.CRIS._enter()
+
+/**
+ * @brief Exit a critical section
+ *
+ * @details It is provided to protect your shared code which are executed without distribution. \n\n
+ *
+ * In non-OS environment, It can be just implemented by disabling whole interrupt. \n
+ * In OS environment, You can replace it to critical section api supported by OS.
+ *
+ * @sa WIZCHIP_READ(), WIZCHIP_WRITE(), WIZCHIP_READ_BUF(), WIZCHIP_WRITE_BUF()
+ * @sa WIZCHIP_CRITICAL_ENTER()
+ */
+#define WIZCHIP_CRITICAL_EXIT()     WIZCHIP.CRIS._exit()
+
+
+
+////////////////////////
+// Basic I/O Function //
+////////////////////////
+
+/**
+ * @ingroup Basic_IO_function
+ * @brief It reads 1 byte value from a register.
+ * @param AddrSel Register address
+ * @return The value of register
+ */
+uint8_t  WIZCHIP_READ (uint32_t AddrSel);
+
+/**
+ * @ingroup Basic_IO_function
+ * @brief It writes 1 byte value to a register.
+ * @param AddrSel Register address
+ * @param wb Write data
+ * @return void
+ */
+void     WIZCHIP_WRITE(uint32_t AddrSel, uint8_t wb );
+
+/**
+ * @ingroup Basic_IO_function
+ * @brief It reads sequence data from registers.
+ * @param AddrSel Register address
+ * @param pBuf Pointer buffer to read data
+ * @param len Data length
+ */
+void     WIZCHIP_READ_BUF (uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
+
+/**
+ * @ingroup Basic_IO_function
+ * @brief It writes sequence data to registers.
+ * @param AddrSel Register address
+ * @param pBuf Pointer buffer to write data
+ * @param len Data length
+ */
+void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
+
+/////////////////////////////////
+// Common Register I/O function //
+/////////////////////////////////
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set Mode Register
+ * @param (uint8_t)mr The value to be set.
+ * @sa getMR()
+ */
+#define setMR(mr) \
+	WIZCHIP_WRITE(MR,mr)
+
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get Mode Register
+ * @return uint8_t. The value of Mode register.
+ * @sa setMR()
+ */
+#define getMR() \
+		WIZCHIP_READ(MR)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set gateway IP address
+ * @param (uint8_t*)gar Pointer variable to set gateway IP address. It should be allocated 4 bytes.
+ * @sa getGAR()
+ */
+#define setGAR(gar) \
+		WIZCHIP_WRITE_BUF(GAR,gar,4)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get gateway IP address
+ * @param (uint8_t*)gar Pointer variable to get gateway IP address. It should be allocated 4 bytes.
+ * @sa setGAR()
+ */
+#define getGAR(gar) \
+		WIZCHIP_READ_BUF(GAR,gar,4)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set subnet mask address
+ * @param (uint8_t*)subr Pointer variable to set subnet mask address. It should be allocated 4 bytes.
+ * @sa getSUBR()
+ */
+#define setSUBR(subr) \
+		WIZCHIP_WRITE_BUF(SUBR, subr,4)
+
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get subnet mask address
+ * @param (uint8_t*)subr Pointer variable to get subnet mask address. It should be allocated 4 bytes.
+ * @sa setSUBR()
+ */
+#define getSUBR(subr) \
+		WIZCHIP_READ_BUF(SUBR, subr, 4)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set local MAC address
+ * @param (uint8_t*)shar Pointer variable to set local MAC address. It should be allocated 6 bytes.
+ * @sa getSHAR()
+ */
+#define setSHAR(shar) \
+		WIZCHIP_WRITE_BUF(SHAR, shar, 6)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get local MAC address
+ * @param (uint8_t*)shar Pointer variable to get local MAC address. It should be allocated 6 bytes.
+ * @sa setSHAR()
+ */
+#define getSHAR(shar) \
+		WIZCHIP_READ_BUF(SHAR, shar, 6)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set local IP address
+ * @param (uint8_t*)sipr Pointer variable to set local IP address. It should be allocated 4 bytes.
+ * @sa getSIPR()
+ */
+#define setSIPR(sipr) \
+		WIZCHIP_WRITE_BUF(SIPR, sipr, 4)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get local IP address
+ * @param (uint8_t*)sipr Pointer variable to get local IP address. It should be allocated 4 bytes.
+ * @sa setSIPR()
+ */
+#define getSIPR(sipr) \
+		WIZCHIP_READ_BUF(SIPR, sipr, 4)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set INTLEVEL register
+ * @param (uint16_t)intlevel Value to set @ref INTLEVEL register.
+ * @sa getINTLEVEL()
+ */
+#define setINTLEVEL(intlevel)  {\
+		WIZCHIP_WRITE(INTLEVEL,   (uint8_t)(intlevel >> 8)); \
+		WIZCHIP_WRITE(WIZCHIP_OFFSET_INC(INTLEVEL,1), (uint8_t) intlevel); \
+	}
+
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get INTLEVEL register
+ * @return uint16_t. Value of @ref INTLEVEL register.
+ * @sa setINTLEVEL()
+ */
+#define getINTLEVEL() \
+		((WIZCHIP_READ(INTLEVEL) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(INTLEVEL,1)))
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set @ref IR register
+ * @param (uint8_t)ir Value to set @ref IR register.
+ * @sa getIR()
+ */
+#define setIR(ir) \
+		WIZCHIP_WRITE(IR, (ir & 0xF0))
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get @ref IR register
+ * @return uint8_t. Value of @ref IR register.
+ * @sa setIR()
+ */
+#define getIR() \
+		(WIZCHIP_READ(IR) & 0xF0)
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set @ref IMR register
+ * @param (uint8_t)imr Value to set @ref IMR register.
+ * @sa getIMR()
+ */
+#define setIMR(imr) \
+		WIZCHIP_WRITE(IMR, imr)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get @ref IMR register
+ * @return uint8_t. Value of @ref IMR register.
+ * @sa setIMR()
+ */
+#define getIMR() \
+		WIZCHIP_READ(IMR)
+
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set @ref SIR register
+ * @param (uint8_t)sir Value to set @ref SIR register.
+ * @sa getSIR()
+ */
+#define setSIR(sir) \
+		WIZCHIP_WRITE(SIR, sir)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get @ref SIR register
+ * @return uint8_t. Value of @ref SIR register.
+ * @sa setSIR()
+ */
+#define getSIR() \
+		WIZCHIP_READ(SIR)
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set @ref SIMR register
+ * @param (uint8_t)simr Value to set @ref SIMR register.
+ * @sa getSIMR()
+ */
+#define setSIMR(simr) \
+		WIZCHIP_WRITE(SIMR, simr)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get @ref SIMR register
+ * @return uint8_t. Value of @ref SIMR register.
+ * @sa setSIMR()
+ */
+#define getSIMR() \
+		WIZCHIP_READ(SIMR)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set @ref RTR register
+ * @param (uint16_t)rtr Value to set @ref RTR register.
+ * @sa getRTR()
+ */
+#define setRTR(rtr)   {\
+		WIZCHIP_WRITE(RTR,   (uint8_t)(rtr >> 8)); \
+		WIZCHIP_WRITE(WIZCHIP_OFFSET_INC(RTR,1), (uint8_t) rtr); \
+	}
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get @ref RTR register
+ * @return uint16_t. Value of @ref RTR register.
+ * @sa setRTR()
+ */
+#define getRTR() \
+		((WIZCHIP_READ(RTR) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(RTR,1)))
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set @ref RCR register
+ * @param (uint8_t)rcr Value to set @ref RCR register.
+ * @sa getRCR()
+ */
+#define setRCR(rcr) \
+		WIZCHIP_WRITE(RCR, rcr)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get @ref RCR register
+ * @return uint8_t. Value of @ref RCR register.
+ * @sa setRCR()
+ */
+#define getRCR() \
+		WIZCHIP_READ(RCR)
+
+//================================================== test done ===========================================================
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set @ref PTIMER register
+ * @param (uint8_t)ptimer Value to set @ref PTIMER register.
+ * @sa getPTIMER()
+ */
+#define setPTIMER(ptimer) \
+		WIZCHIP_WRITE(PTIMER, ptimer)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get @ref PTIMER register
+ * @return uint8_t. Value of @ref PTIMER register.
+ * @sa setPTIMER()
+ */
+#define getPTIMER() \
+		WIZCHIP_READ(PTIMER)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set @ref PMAGIC register
+ * @param (uint8_t)pmagic Value to set @ref PMAGIC register.
+ * @sa getPMAGIC()
+ */
+#define setPMAGIC(pmagic) \
+		WIZCHIP_WRITE(PMAGIC, pmagic)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get @ref PMAGIC register
+ * @return uint8_t. Value of @ref PMAGIC register.
+ * @sa setPMAGIC()
+ */
+#define getPMAGIC() \
+		WIZCHIP_READ(PMAGIC)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set PHAR address
+ * @param (uint8_t*)phar Pointer variable to set PPP destination MAC register address. It should be allocated 6 bytes.
+ * @sa getPHAR()
+ */
+#define setPHAR(phar) \
+		WIZCHIP_WRITE_BUF(PHAR, phar, 6)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get local IP address
+ * @param (uint8_t*)phar Pointer variable to PPP destination MAC register address. It should be allocated 6 bytes.
+ * @sa setPHAR()
+ */
+#define getPHAR(phar) \
+		WIZCHIP_READ_BUF(PHAR, phar, 6)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set @ref PSID register
+ * @param (uint16_t)psid Value to set @ref PSID register.
+ * @sa getPSID()
+ */
+#define setPSID(psid)  {\
+		WIZCHIP_WRITE(PSID,   (uint8_t)(psid >> 8)); \
+		WIZCHIP_WRITE(WIZCHIP_OFFSET_INC(PSID,1), (uint8_t) psid); \
+	}
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get @ref PSID register
+ * @return uint16_t. Value of @ref PSID register.
+ * @sa setPSID()
+ */
+//uint16_t getPSID(void);
+#define getPSID() \
+		((WIZCHIP_READ(PSID) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(PSID,1)))
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set @ref PMRU register
+ * @param (uint16_t)pmru Value to set @ref PMRU register.
+ * @sa getPMRU()
+ */
+#define setPMRU(pmru) { \
+		WIZCHIP_WRITE(PMRU,   (uint8_t)(pmru>>8)); \
+		WIZCHIP_WRITE(WIZCHIP_OFFSET_INC(PMRU,1), (uint8_t) pmru); \
+	}
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get @ref PMRU register
+ * @return uint16_t. Value of @ref PMRU register.
+ * @sa setPMRU()
+ */
+#define getPMRU() \
+		((WIZCHIP_READ(PMRU) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(PMRU,1)))
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get unreachable IP address
+ * @param (uint8_t*)uipr Pointer variable to get unreachable IP address. It should be allocated 4 bytes.
+ */
+#define getUIPR(uipr) \
+		WIZCHIP_READ_BUF(UIPR,uipr,6)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get @ref UPORTR register
+ * @return uint16_t. Value of @ref UPORTR register.
+ */
+#define getUPORTR() \
+	((WIZCHIP_READ(UPORTR) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(UPORTR,1)))
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Set @ref PHYCFGR register
+ * @param (uint8_t)phycfgr Value to set @ref PHYCFGR register.
+ * @sa getPHYCFGR()
+ */
+#define setPHYCFGR(phycfgr) \
+		WIZCHIP_WRITE(PHYCFGR, phycfgr)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get @ref PHYCFGR register
+ * @return uint8_t. Value of @ref PHYCFGR register.
+ * @sa setPHYCFGR()
+ */
+#define getPHYCFGR() \
+		WIZCHIP_READ(PHYCFGR)
+
+/**
+ * @ingroup Common_register_access_function
+ * @brief Get @ref VERSIONR register
+ * @return uint8_t. Value of @ref VERSIONR register.
+ */
+#define getVERSIONR() \
+		WIZCHIP_READ(VERSIONR)
+
+/////////////////////////////////////
+
+///////////////////////////////////
+// Socket N register I/O function //
+///////////////////////////////////
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_MR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint8_t)mr Value to set @ref Sn_MR
+ * @sa getSn_MR()
+ */
+#define setSn_MR(sn, mr) \
+		WIZCHIP_WRITE(Sn_MR(sn),mr)
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_MR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint8_t. Value of @ref Sn_MR.
+ * @sa setSn_MR()
+ */
+#define getSn_MR(sn) \
+	WIZCHIP_READ(Sn_MR(sn))
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_CR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint8_t)cr Value to set @ref Sn_CR
+ * @sa getSn_CR()
+ */
+#define setSn_CR(sn, cr) \
+		WIZCHIP_WRITE(Sn_CR(sn), cr)
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_CR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint8_t. Value of @ref Sn_CR.
+ * @sa setSn_CR()
+ */
+#define getSn_CR(sn) \
+		WIZCHIP_READ(Sn_CR(sn))
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_IR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint8_t)ir Value to set @ref Sn_IR
+ * @sa getSn_IR()
+ */
+#define setSn_IR(sn, ir) \
+		WIZCHIP_WRITE(Sn_IR(sn), (ir & 0x1F))
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_IR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint8_t. Value of @ref Sn_IR.
+ * @sa setSn_IR()
+ */
+#define getSn_IR(sn) \
+		(WIZCHIP_READ(Sn_IR(sn)) & 0x1F)
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_IMR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint8_t)imr Value to set @ref Sn_IMR
+ * @sa getSn_IMR()
+ */
+#define setSn_IMR(sn, imr) \
+		WIZCHIP_WRITE(Sn_IMR(sn), (imr & 0x1F))
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_IMR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint8_t. Value of @ref Sn_IMR.
+ * @sa setSn_IMR()
+ */
+#define getSn_IMR(sn) \
+		(WIZCHIP_READ(Sn_IMR(sn)) & 0x1F)
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_SR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint8_t. Value of @ref Sn_SR.
+ */
+#define getSn_SR(sn) \
+		WIZCHIP_READ(Sn_SR(sn))
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_PORT register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint16_t)port Value to set @ref Sn_PORT.
+ * @sa getSn_PORT()
+ */
+#define setSn_PORT(sn, port)  { \
+		WIZCHIP_WRITE(Sn_PORT(sn),   (uint8_t)(port >> 8)); \
+		WIZCHIP_WRITE(WIZCHIP_OFFSET_INC(Sn_PORT(sn),1), (uint8_t) port); \
+	}
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_PORT register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint16_t. Value of @ref Sn_PORT.
+ * @sa setSn_PORT()
+ */
+#define getSn_PORT(sn) \
+		((WIZCHIP_READ(Sn_PORT(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_PORT(sn),1)))
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_DHAR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint8_t*)dhar Pointer variable to set socket n destination hardware address. It should be allocated 6 bytes.
+ * @sa getSn_DHAR()
+ */
+#define setSn_DHAR(sn, dhar) \
+		WIZCHIP_WRITE_BUF(Sn_DHAR(sn), dhar, 6)
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_MR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint8_t*)dhar Pointer variable to get socket n destination hardware address. It should be allocated 6 bytes.
+ * @sa setSn_DHAR()
+ */
+#define getSn_DHAR(sn, dhar) \
+		WIZCHIP_READ_BUF(Sn_DHAR(sn), dhar, 6)
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_DIPR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint8_t*)dipr Pointer variable to set socket n destination IP address. It should be allocated 4 bytes.
+ * @sa getSn_DIPR()
+ */
+#define setSn_DIPR(sn, dipr) \
+		WIZCHIP_WRITE_BUF(Sn_DIPR(sn), dipr, 4)
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_DIPR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint8_t*)dipr Pointer variable to get socket n destination IP address. It should be allocated 4 bytes.
+ * @sa SetSn_DIPR()
+ */
+#define getSn_DIPR(sn, dipr) \
+		WIZCHIP_READ_BUF(Sn_DIPR(sn), dipr, 4)
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_DPORT register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint16_t)dport Value to set @ref Sn_DPORT
+ * @sa getSn_DPORT()
+ */
+#define setSn_DPORT(sn, dport) { \
+		WIZCHIP_WRITE(Sn_DPORT(sn),   (uint8_t) (dport>>8)); \
+		WIZCHIP_WRITE(WIZCHIP_OFFSET_INC(Sn_DPORT(sn),1), (uint8_t)  dport); \
+	}
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_DPORT register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint16_t. Value of @ref Sn_DPORT.
+ * @sa setSn_DPORT()
+ */
+#define getSn_DPORT(sn) \
+		((WIZCHIP_READ(Sn_DPORT(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_DPORT(sn),1)))
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_MSSR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint16_t)mss Value to set @ref Sn_MSSR
+ * @sa setSn_MSSR()
+ */
+#define setSn_MSSR(sn, mss) { \
+		WIZCHIP_WRITE(Sn_MSSR(sn),   (uint8_t)(mss>>8)); \
+		WIZCHIP_WRITE(WIZCHIP_OFFSET_INC(Sn_MSSR(sn),1), (uint8_t) mss); \
+	}
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_MSSR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint16_t. Value of @ref Sn_MSSR.
+ * @sa setSn_MSSR()
+ */
+#define getSn_MSSR(sn) \
+		((WIZCHIP_READ(Sn_MSSR(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_MSSR(sn),1)))
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_TOS register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint8_t)tos Value to set @ref Sn_TOS
+ * @sa getSn_TOS()
+ */
+#define setSn_TOS(sn, tos) \
+		WIZCHIP_WRITE(Sn_TOS(sn), tos)
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_TOS register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint8_t. Value of Sn_TOS.
+ * @sa setSn_TOS()
+ */
+#define getSn_TOS(sn) \
+		WIZCHIP_READ(Sn_TOS(sn))
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_TTL register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint8_t)ttl Value to set @ref Sn_TTL
+ * @sa getSn_TTL()
+ */
+#define setSn_TTL(sn, ttl) \
+		WIZCHIP_WRITE(Sn_TTL(sn), ttl)
+
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_TTL register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint8_t. Value of @ref Sn_TTL.
+ * @sa setSn_TTL()
+ */
+#define getSn_TTL(sn) \
+		WIZCHIP_READ(Sn_TTL(sn))
+
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_RXBUF_SIZE register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint8_t)rxbufsize Value to set @ref Sn_RXBUF_SIZE
+ * @sa getSn_RXBUF_SIZE()
+ */
+#define setSn_RXBUF_SIZE(sn, rxbufsize) \
+		WIZCHIP_WRITE(Sn_RXBUF_SIZE(sn),rxbufsize)
+
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_RXBUF_SIZE register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint8_t. Value of @ref Sn_RXBUF_SIZE.
+ * @sa setSn_RXBUF_SIZE()
+ */
+#define getSn_RXBUF_SIZE(sn) \
+		WIZCHIP_READ(Sn_RXBUF_SIZE(sn))
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_TXBUF_SIZE register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint8_t)txbufsize Value to set @ref Sn_TXBUF_SIZE
+ * @sa getSn_TXBUF_SIZE()
+ */
+#define setSn_TXBUF_SIZE(sn, txbufsize) \
+		WIZCHIP_WRITE(Sn_TXBUF_SIZE(sn), txbufsize)
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_TXBUF_SIZE register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint8_t. Value of @ref Sn_TXBUF_SIZE.
+ * @sa setSn_TXBUF_SIZE()
+ */
+#define getSn_TXBUF_SIZE(sn) \
+		WIZCHIP_READ(Sn_TXBUF_SIZE(sn))
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_TX_FSR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint16_t. Value of @ref Sn_TX_FSR.
+ */
+uint16_t getSn_TX_FSR(uint8_t sn);
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_TX_RD register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint16_t. Value of @ref Sn_TX_RD.
+ */
+#define getSn_TX_RD(sn) \
+		((WIZCHIP_READ(Sn_TX_RD(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_TX_RD(sn),1)))
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_TX_WR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint16_t)txwr Value to set @ref Sn_TX_WR
+ * @sa GetSn_TX_WR()
+ */
+#define setSn_TX_WR(sn, txwr) { \
+		WIZCHIP_WRITE(Sn_TX_WR(sn),   (uint8_t)(txwr>>8)); \
+		WIZCHIP_WRITE(WIZCHIP_OFFSET_INC(Sn_TX_WR(sn),1), (uint8_t) txwr); \
+		}
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_TX_WR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint16_t. Value of @ref Sn_TX_WR.
+ * @sa setSn_TX_WR()
+ */
+#define getSn_TX_WR(sn) \
+		((WIZCHIP_READ(Sn_TX_WR(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_TX_WR(sn),1)))
+
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_RX_RSR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint16_t. Value of @ref Sn_RX_RSR.
+ */
+uint16_t getSn_RX_RSR(uint8_t sn);
+
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_RX_RD register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint16_t)rxrd Value to set @ref Sn_RX_RD
+ * @sa getSn_RX_RD()
+ */
+#define setSn_RX_RD(sn, rxrd) { \
+		WIZCHIP_WRITE(Sn_RX_RD(sn),   (uint8_t)(rxrd>>8)); \
+		WIZCHIP_WRITE(WIZCHIP_OFFSET_INC(Sn_RX_RD(sn),1), (uint8_t) rxrd); \
+	}
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_RX_RD register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @regurn uint16_t. Value of @ref Sn_RX_RD.
+ * @sa setSn_RX_RD()
+ */
+#define getSn_RX_RD(sn) \
+		((WIZCHIP_READ(Sn_RX_RD(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_RX_RD(sn),1)))
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_RX_WR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint16_t. Value of @ref Sn_RX_WR.
+ */
+#define getSn_RX_WR(sn) \
+		((WIZCHIP_READ(Sn_RX_WR(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_RX_WR(sn),1)))
+
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_FRAG register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint16_t)frag Value to set @ref Sn_FRAG
+ * @sa getSn_FRAD()
+ */
+#define setSn_FRAG(sn, frag) { \
+		WIZCHIP_WRITE(Sn_FRAG(sn),  (uint8_t)(frag >>8)); \
+		WIZCHIP_WRITE(WIZCHIP_OFFSET_INC(Sn_FRAG(sn),1), (uint8_t) frag); \
+	}
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_FRAG register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint16_t. Value of @ref Sn_FRAG.
+ * @sa setSn_FRAG()
+ */
+#define getSn_FRAG(sn) \
+		((WIZCHIP_READ(Sn_FRAG(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_FRAG(sn),1)))
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Set @ref Sn_KPALVTR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param (uint8_t)kpalvt Value to set @ref Sn_KPALVTR
+ * @sa getSn_KPALVTR()
+ */
+#define setSn_KPALVTR(sn, kpalvt) \
+		WIZCHIP_WRITE(Sn_KPALVTR(sn), kpalvt)
+
+/**
+ * @ingroup Socket_register_access_function
+ * @brief Get @ref Sn_KPALVTR register
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint8_t. Value of @ref Sn_KPALVTR.
+ * @sa setSn_KPALVTR()
+ */
+#define getSn_KPALVTR(sn) \
+		WIZCHIP_READ(Sn_KPALVTR(sn))
+
+//////////////////////////////////////
+
+/////////////////////////////////////
+// Sn_TXBUF & Sn_RXBUF IO function //
+/////////////////////////////////////
+/**  
+ * @brief Gets the max buffer size of socket sn passed as parameter.
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint16_t. Value of Socket n RX max buffer size.
+ */
+#define getSn_RxMAX(sn) \
+		(getSn_RXBUF_SIZE(sn) << 10)
+
+/**  
+ * @brief Gets the max buffer size of socket sn passed as parameters.
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @return uint16_t. Value of Socket n TX max buffer size.
+ */
+//uint16_t getSn_TxMAX(uint8_t sn);
+#define getSn_TxMAX(sn) \
+		(getSn_TXBUF_SIZE(sn) << 10)
+
+/**
+ * @ingroup Basic_IO_function
+ * @brief It copies data to internal TX memory
+ *
+ * @details This function reads the Tx write pointer register and after that,
+ * it copies the <i>wizdata(pointer buffer)</i> of the length of <i>len(variable)</i> bytes to internal TX memory
+ * and updates the Tx write pointer register.
+ * This function is being called by send() and sendto() function also.
+ *
+ * @note User should read upper byte first and lower byte later to get proper value.
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param wizdata Pointer buffer to write data
+ * @param len Data length
+ * @sa wiz_recv_data()
+ */
+void wiz_send_data(uint8_t sn, uint8_t *wizdata, uint16_t len);
+
+/**
+ * @ingroup Basic_IO_function
+ * @brief It copies data to your buffer from internal RX memory
+ *
+ * @details This function read the Rx read pointer register and after that,
+ * it copies the received data from internal RX memory
+ * to <i>wizdata(pointer variable)</i> of the length of <i>len(variable)</i> bytes.
+ * This function is being called by recv() also.
+ *
+ * @note User should read upper byte first and lower byte later to get proper value.
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param wizdata Pointer buffer to read data
+ * @param len Data length
+ * @sa wiz_send_data()
+ */
+void wiz_recv_data(uint8_t sn, uint8_t *wizdata, uint16_t len);
+
+/**
+ * @ingroup Basic_IO_function
+ * @brief It discard the received data in RX memory.
+ * @details It discards the data of the length of <i>len(variable)</i> bytes in internal RX memory.
+ * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
+ * @param len Data length
+ */
+void wiz_recv_ignore(uint8_t sn, uint16_t len);
+
+#endif   // _W5500_H_

iolibrary/Ethernet/wizchip_conf.c

@@ -0,0 +1,636 @@
+//****************************************************************************/ 
+//!
+//! \file wizchip_conf.c
+//! \brief WIZCHIP Config Header File.
+//! \version 1.0.1
+//! \date 2013/10/21
+//! \par  Revision history
+//!       <2014/05/01> V1.0.1  Refer to M20140501
+//!        1. Explicit type casting in wizchip_bus_readbyte() & wizchip_bus_writebyte()
+//            Issued by Mathias ClauBen.
+//!           uint32_t type converts into ptrdiff_t first. And then recoverting it into uint8_t*
+//!           For remove the warning when pointer type size is not 32bit.
+//!           If ptrdiff_t doesn't support in your complier, You should must replace ptrdiff_t into your suitable pointer type.
+//!       <2013/10/21> 1st Release
+//! \author MidnightCow
+//! \copyright
+//!
+//! Copyright (c)  2013, WIZnet Co., LTD.
+//! All rights reserved.
+//! 
+//! Redistribution and use in source and binary forms, with or without 
+//! modification, are permitted provided that the following conditions 
+//! are met: 
+//! 
+//!     * Redistributions of source code must retain the above copyright 
+//! notice, this list of conditions and the following disclaimer. 
+//!     * Redistributions in binary form must reproduce the above copyright
+//! notice, this list of conditions and the following disclaimer in the
+//! documentation and/or other materials provided with the distribution. 
+//!     * Neither the name of the <ORGANIZATION> nor the names of its 
+//! contributors may be used to endorse or promote products derived 
+//! from this software without specific prior written permission. 
+//! 
+//! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! THE POSSIBILITY OF SUCH DAMAGE.
+//
+//*****************************************************************************/
+//A20140501 : for use the type - ptrdiff_t
+#include <stddef.h>
+//
+
+#include "wizchip_conf.h"
+/**
+ * @brief Default function to enable interrupt.
+ * @note This function help not to access wrong address. If you do not describe this function or register any functions,
+ * null function is called.
+ */
+void 	  wizchip_cris_enter(void)           {};
+/**
+ * @brief Default function to disable interrupt.
+ * @note This function help not to access wrong address. If you do not describe this function or register any functions,
+ * null function is called.
+ */
+void 	  wizchip_cris_exit(void)          {};
+/**
+ * @brief Default function to select chip.
+ * @note This function help not to access wrong address. If you do not describe this function or register any functions,
+ * null function is called.
+ */
+void 	wizchip_cs_select(void)            {};
+/**
+ * @brief Default function to deselect chip.
+ * @note This function help not to access wrong address. If you do not describe this function or register any functions,
+ * null function is called.
+ */
+void 	wizchip_cs_deselect(void)          {};
+/**
+ * @brief Default function to read in direct or indirect interface.
+ * @note This function help not to access wrong address. If you do not describe this function or register any functions,
+ * null function is called.
+ */
+ //M20140501 : Explict pointer type casting
+//uint8_t wizchip_bus_readbyte(uint32_t AddrSel) { return * ((volatile uint8_t *) AddrSel); };
+uint8_t wizchip_bus_readbyte(uint32_t AddrSel) { return * ((volatile uint8_t *)((ptrdiff_t) AddrSel)); };
+/**
+ * @brief Default function to write in direct or indirect interface.
+ * @note This function help not to access wrong address. If you do not describe this function or register any functions,
+ * null function is called.
+ */
+ 
+//M20140501 : Explict pointer type casting
+//void 	wizchip_bus_writebyte(uint32_t AddrSel, uint8_t wb)  { *((volatile uint8_t*) AddrSel) = wb; };
+void 	wizchip_bus_writebyte(uint32_t AddrSel, uint8_t wb)  { *((volatile uint8_t*)((ptrdiff_t)AddrSel)) = wb; };
+
+/**
+ * @brief Default function to read in SPI interface.
+ * @note This function help not to access wrong address. If you do not describe this function or register any functions,
+ * null function is called.
+ */
+uint8_t wizchip_spi_readbyte(void)        {return 0;};
+/**
+ * @brief Default function to write in SPI interface.
+ * @note This function help not to access wrong address. If you do not describe this function or register any functions,
+ * null function is called.
+ */
+void 	wizchip_spi_writebyte(uint8_t wb) {};
+
+/**
+ * @\ref _WIZCHIP instance
+ */
+_WIZCHIP  WIZCHIP =
+      {
+      .id                  = _WIZCHIP_ID_,
+      .if_mode             = _WIZCHIP_IO_MODE_,
+      .CRIS._enter         = wizchip_cris_enter,
+      .CRIS._exit          = wizchip_cris_exit,
+      .CS._select          = wizchip_cs_select,
+      .CS._deselect        = wizchip_cs_deselect,
+      .IF.BUS._read_byte   = wizchip_bus_readbyte,
+      .IF.BUS._write_byte  = wizchip_bus_writebyte
+//    .IF.SPI._read_byte   = wizchip_spi_readbyte,
+//    .IF.SPI._write_byte  = wizchip_spi_writebyte
+      };
+
+static uint8_t    _DNS_[4];      // DNS server ip address
+static dhcp_mode  _DHCP_;        // DHCP mode
+
+void reg_wizchip_cris_cbfunc(void(*cris_en)(void), void(*cris_ex)(void))
+{
+   if(!cris_en || !cris_ex)
+   {
+      WIZCHIP.CRIS._enter = wizchip_cris_enter;
+      WIZCHIP.CRIS._exit  = wizchip_cris_exit;
+   }
+   else
+   {
+      WIZCHIP.CRIS._enter = cris_en;
+      WIZCHIP.CRIS._exit  = cris_ex;
+   }
+}
+
+void reg_wizchip_cs_cbfunc(void(*cs_sel)(void), void(*cs_desel)(void))
+{
+   if(!cs_sel || !cs_desel)
+   {
+      WIZCHIP.CS._select   = wizchip_cs_select;
+      WIZCHIP.CS._deselect = wizchip_cs_deselect;
+   }
+   else
+   {
+      WIZCHIP.CS._select   = cs_sel;
+      WIZCHIP.CS._deselect = cs_desel;
+   }
+}
+
+void reg_wizchip_bus_cbfunc(uint8_t(*bus_rb)(uint32_t addr), void (*bus_wb)(uint32_t addr, uint8_t wb))
+{
+   while(!(WIZCHIP.if_mode & _WIZCHIP_IO_MODE_BUS_));
+   
+   if(!bus_rb || !bus_wb)
+   {
+      WIZCHIP.IF.BUS._read_byte   = wizchip_bus_readbyte;
+      WIZCHIP.IF.BUS._write_byte  = wizchip_bus_writebyte;
+   }
+   else
+   {
+      WIZCHIP.IF.BUS._read_byte   = bus_rb;
+      WIZCHIP.IF.BUS._write_byte  = bus_wb;
+   }
+}
+
+void reg_wizchip_spi_cbfunc(uint8_t (*spi_rb)(void), void (*spi_wb)(uint8_t wb))
+{
+   while(!(WIZCHIP.if_mode & _WIZCHIP_IO_MODE_SPI_));
+   
+   if(!spi_rb || !spi_wb)
+   {
+      WIZCHIP.IF.SPI._read_byte   = wizchip_spi_readbyte;
+      WIZCHIP.IF.SPI._write_byte  = wizchip_spi_writebyte;
+   }
+   else
+   {
+      WIZCHIP.IF.SPI._read_byte   = spi_rb;
+      WIZCHIP.IF.SPI._write_byte  = spi_wb;
+   }
+}
+
+int8_t ctlwizchip(ctlwizchip_type cwtype, void* arg)
+{
+   uint8_t tmp = 0;
+   uint8_t* ptmp[2] = {0,0};
+   switch(cwtype)
+   {
+      case CW_RESET_WIZCHIP:
+         wizchip_sw_reset();
+         break;
+      case CW_INIT_WIZCHIP:
+         if(arg != 0) 
+         {
+            ptmp[0] = (uint8_t*)arg;
+            ptmp[1] = ptmp[0] + _WIZCHIP_SOCK_NUM_;
+         }
+         return wizchip_init(ptmp[0], ptmp[1]);
+      case CW_CLR_INTERRUPT:
+         wizchip_clrinterrupt(*((intr_kind*)arg));
+         break;
+      case CW_GET_INTERRUPT:
+        *((intr_kind*)arg) = wizchip_getinterrupt();
+         break;
+      case CW_SET_INTRMASK:
+         wizchip_setinterruptmask(*((intr_kind*)arg));
+         break;         
+      case CW_GET_INTRMASK:
+         *((intr_kind*)arg) = wizchip_getinterruptmask();
+         break;
+   #if _WIZCHIP_ > 5100
+      case CW_SET_INTRTIME:
+         setINTLEVEL(*(uint16_t*)arg);
+         break;
+      case CW_GET_INTRTIME:
+         *(uint16_t*)arg = getINTLEVEL();
+         break;
+   #endif
+      case CW_GET_ID:
+         ((uint8_t*)arg)[0] = WIZCHIP.id[0];
+         ((uint8_t*)arg)[1] = WIZCHIP.id[1];
+         ((uint8_t*)arg)[2] = WIZCHIP.id[2];
+         ((uint8_t*)arg)[3] = WIZCHIP.id[3];
+         ((uint8_t*)arg)[4] = WIZCHIP.id[4];
+         ((uint8_t*)arg)[5] = 0;
+         break;
+   #if _WIZCHIP_ ==  5500
+      case CW_RESET_PHY:
+         wizphy_reset();
+         break;
+      case CW_SET_PHYCONF:
+         wizphy_setphyconf((wiz_PhyConf*)arg);
+         break;
+      case CW_GET_PHYCONF:
+         wizphy_getphyconf((wiz_PhyConf*)arg);
+         break;
+      case CW_GET_PHYSTATUS:
+         break;
+      case CW_SET_PHYPOWMODE:
+         return wizphy_setphypmode(*(uint8_t*)arg);
+   #endif
+      case CW_GET_PHYPOWMODE:
+         tmp = wizphy_getphypmode();
+         if((int8_t)tmp == -1) return -1;
+         *(uint8_t*)arg = tmp;
+         break;
+      case CW_GET_PHYLINK:
+         tmp = wizphy_getphylink();
+         if((int8_t)tmp == -1) return -1;
+         *(uint8_t*)arg = tmp;
+         break;
+      default:
+         return -1;
+   }
+   return 0;
+}
+
+
+int8_t ctlnetwork(ctlnetwork_type cntype, void* arg)
+{
+   
+   switch(cntype)
+   {
+      case CN_SET_NETINFO:
+         wizchip_setnetinfo((wiz_NetInfo*)arg);
+         break;
+      case CN_GET_NETINFO:
+         wizchip_getnetinfo((wiz_NetInfo*)arg);
+         break;
+      case CN_SET_NETMODE:
+         return wizchip_setnetmode(*(netmode_type*)arg);
+      case CN_GET_NETMODE:
+         *(netmode_type*)arg = wizchip_getnetmode();
+         break;
+      case CN_SET_TIMEOUT:
+         wizchip_settimeout((wiz_NetTimeout*)arg);
+         break;
+      case CN_GET_TIMEOUT:
+         wizchip_gettimeout((wiz_NetTimeout*)arg);
+         break;
+      default:
+         return -1;
+   }
+   return 0;
+}
+
+void wizchip_sw_reset(void)
+{
+   uint8_t gw[4], sn[4], sip[4];
+   uint8_t mac[6];
+   getSHAR(mac);
+   getGAR(gw);  getSUBR(sn);  getSIPR(sip);
+   setMR(MR_RST);
+   getMR(); // for delay
+   setSHAR(mac);
+   setGAR(gw);
+   setSUBR(sn);
+   setSIPR(sip);
+}
+
+int8_t wizchip_init(uint8_t* txsize, uint8_t* rxsize)
+{
+   int8_t i;
+   int8_t tmp = 0;
+   wizchip_sw_reset();
+   if(txsize)
+   {
+      tmp = 0;
+      for(i = 0 ; i < _WIZCHIP_SOCK_NUM_; i++)
+         tmp += txsize[i];
+      if(tmp > 16) return -1;
+      for(i = 0 ; i < _WIZCHIP_SOCK_NUM_; i++)
+         setSn_TXBUF_SIZE(i, txsize[i]);
+   }
+   if(rxsize)
+   {
+      tmp = 0;
+      for(i = 0 ; i < _WIZCHIP_SOCK_NUM_; i++)
+         tmp += rxsize[i];
+      if(tmp > 16) return -1;
+      for(i = 0 ; i < _WIZCHIP_SOCK_NUM_; i++)
+         setSn_RXBUF_SIZE(i, rxsize[i]);
+   }
+   return 0;
+}
+
+void wizchip_clrinterrupt(intr_kind intr)
+{
+   uint8_t ir  = (uint8_t)intr;
+   uint8_t sir = (uint8_t)((uint16_t)intr >> 8);
+#if _WIZCHIP_ < 5500
+   ir |= (1<<4); // IK_WOL
+#endif
+#if _WIZCHIP_ == 5200
+   ir |= (1 << 6);
+#endif
+   
+#if _WIZCHIP_ < 5200
+   sir &= 0x0F;
+#endif
+
+#if _WIZCHIP_ == 5100
+   ir |= sir;
+   setIR(ir);
+#else
+   setIR(ir);
+   setSIR(sir);
+#endif   
+}
+
+intr_kind wizchip_getinterrupt(void)
+{
+   uint8_t ir  = 0;
+   uint8_t sir = 0;
+   uint16_t ret = 0;
+#if _WIZCHIP_ == 5100
+   ir = getIR();
+   sir = ir 0x0F;
+#else
+   ir  = getIR();
+   sir = getSIR();
+#endif         
+
+#if _WIZCHIP_ < 5500
+   ir &= ~(1<<4); // IK_WOL
+#endif
+#if _WIZCHIP_ == 5200
+   ir &= ~(1 << 6);
+#endif
+  ret = sir;
+  ret = (ret << 8) + ir;
+  return (intr_kind)ret;
+}
+
+void wizchip_setinterruptmask(intr_kind intr)
+{
+   uint8_t imr  = (uint8_t)intr;
+   uint8_t simr = (uint8_t)((uint16_t)intr >> 8);
+#if _WIZCHIP_ < 5500
+   imr &= ~(1<<4); // IK_WOL
+#endif
+#if _WIZCHIP_ == 5200
+   imr &= ~(1 << 6);
+#endif
+   
+#if _WIZCHIP_ < 5200
+   simr &= 0x0F;
+#endif
+
+#if _WIZCHIP_ == 5100
+   imr |= simr;
+   setIMR(imr);
+#else
+   setIMR(imr);
+   setSIMR(simr);
+#endif   
+}
+
+intr_kind wizchip_getinterruptmask(void)
+{
+   uint8_t imr  = 0;
+   uint8_t simr = 0;
+   uint16_t ret = 0;
+#if _WIZCHIP_ == 5100
+   imr  = getIMR();
+   simr = imr 0x0F;
+#else
+   imr  = getIMR();
+   simr = getSIMR();
+#endif         
+
+#if _WIZCHIP_ < 5500
+   imr &= ~(1<<4); // IK_WOL
+#endif
+#if _WIZCHIP_ == 5200
+   imr &= ~(1 << 6);  // IK_DEST_UNREACH
+#endif
+  ret = simr;
+  ret = (ret << 8) + imr;
+  return (intr_kind)ret;
+}
+
+int8_t wizphy_getphylink(void)
+{
+   int8_t tmp;
+#if   _WIZCHIP_ == 5200
+   if(getPHYSTATUS() & PHYSTATUS_LINK)
+      tmp = PHY_LINK_ON;
+   else
+      tmp = PHY_LINK_OFF;
+#elif _WIZCHIP_ == 5500
+   if(getPHYCFGR() & PHYCFGR_LNK_ON)
+      tmp = PHY_LINK_ON;
+   else
+      tmp = PHY_LINK_OFF;
+#else
+   tmp = -1;
+#endif
+   return tmp;
+}
+
+#if _WIZCHIP_ > 5100
+
+int8_t wizphy_getphypmode(void)
+{
+   int8_t tmp = 0;
+   #if   _WIZCHIP_ == 5200
+      if(getPHYSTATUS() & PHYSTATUS_POWERDOWN)
+         tmp = PHY_POWER_DOWN;
+      else          
+         tmp = PHY_POWER_NORM;
+   #elif _WIZCHIP_ == 5500
+      if(getPHYCFGR() & PHYCFGR_OPMDC_PDOWN)
+         tmp = PHY_POWER_DOWN;
+      else 
+         tmp = PHY_POWER_NORM;
+   #else
+      tmp = -1;
+   #endif
+   return tmp;
+}
+#endif
+
+#if _WIZCHIP_ == 5500
+void wizphy_reset(void)
+{
+   uint8_t tmp = getPHYCFGR();
+   tmp &= PHYCFGR_RST;
+   setPHYCFGR(tmp);
+   tmp = getPHYCFGR(); 
+   tmp |= ~PHYCFGR_RST;
+   setPHYCFGR(tmp);
+}
+
+void wizphy_setphyconf(wiz_PhyConf* phyconf)
+{
+   uint8_t tmp = 0;
+   if(phyconf->by == PHY_CONFBY_SW)
+      tmp |= PHYCFGR_OPMD;
+   else
+      tmp &= ~PHYCFGR_OPMD;
+   if(phyconf->mode == PHY_MODE_AUTONEGO)
+      tmp |= PHYCFGR_OPMDC_ALLA;
+   else
+   {
+      if(phyconf->duplex == PHY_DUPLEX_FULL)
+      {
+         if(phyconf->speed == PHY_SPEED_100)
+            tmp |= PHYCFGR_OPMDC_100F;
+         else
+            tmp |= PHYCFGR_OPMDC_10F;
+      }   
+      else
+      {
+         if(phyconf->speed == PHY_SPEED_100)
+            tmp |= PHYCFGR_OPMDC_100H;
+         else
+            tmp |= PHYCFGR_OPMDC_10H;
+      }
+   }
+   setPHYCFGR(tmp);
+   wizphy_reset();
+}
+
+void wizphy_getphyconf(wiz_PhyConf* phyconf)
+{
+   uint8_t tmp = 0;
+   tmp = getPHYCFGR();
+   phyconf->by   = (tmp & PHYCFGR_OPMD) ? PHY_CONFBY_SW : PHY_CONFBY_HW;
+   switch(tmp & PHYCFGR_OPMDC_ALLA)
+   {
+      case PHYCFGR_OPMDC_ALLA:
+      case PHYCFGR_OPMDC_100FA: 
+         phyconf->mode = PHY_MODE_AUTONEGO;
+         break;
+      default:
+         phyconf->mode = PHY_MODE_MANUAL;
+         break;
+   }
+   switch(tmp & PHYCFGR_OPMDC_ALLA)
+   {
+      case PHYCFGR_OPMDC_100FA:
+      case PHYCFGR_OPMDC_100F:
+      case PHYCFGR_OPMDC_100H:
+         phyconf->speed = PHY_SPEED_100;
+         break;
+      default:
+         phyconf->speed = PHY_SPEED_10;
+         break;
+   }
+   switch(tmp & PHYCFGR_OPMDC_ALLA)
+   {
+      case PHYCFGR_OPMDC_100FA:
+      case PHYCFGR_OPMDC_100F:
+      case PHYCFGR_OPMDC_10F:
+         phyconf->duplex = PHY_DUPLEX_FULL;
+         break;
+      default:
+         phyconf->duplex = PHY_DUPLEX_HALF;
+         break;
+   }
+}
+
+void wizphy_getphystat(wiz_PhyConf* phyconf)
+{
+   uint8_t tmp = getPHYCFGR();
+   phyconf->duplex = (tmp & PHYCFGR_DPX_FULL) ? PHY_DUPLEX_FULL : PHY_DUPLEX_HALF;
+   phyconf->speed  = (tmp & PHYCFGR_SPD_100) ? PHY_SPEED_100 : PHY_SPEED_10;
+}
+
+int8_t wizphy_setphypmode(uint8_t pmode)
+{
+   uint8_t tmp = 0;
+   tmp = getPHYCFGR();
+   if((tmp & PHYCFGR_OPMD)== 0) return -1;
+   tmp &= ~PHYCFGR_OPMDC_ALLA;         
+   if( pmode == PHY_POWER_DOWN)
+      tmp |= PHYCFGR_OPMDC_PDOWN;
+   else
+      tmp |= PHYCFGR_OPMDC_ALLA;
+   setPHYCFGR(tmp);
+   wizphy_reset();
+   tmp = getPHYCFGR();
+   if( pmode == PHY_POWER_DOWN)
+   {
+      if(tmp & PHYCFGR_OPMDC_PDOWN) return 0;
+   }
+   else
+   {
+      if(tmp & PHYCFGR_OPMDC_ALLA) return 0;
+   }
+   return -1;
+}
+#endif
+
+
+void wizchip_setnetinfo(wiz_NetInfo* pnetinfo)
+{
+   setSHAR(pnetinfo->mac);
+   setGAR(pnetinfo->gw);
+   setSUBR(pnetinfo->sn);
+   setSIPR(pnetinfo->ip);
+   _DNS_[0] = pnetinfo->dns[0];
+   _DNS_[1] = pnetinfo->dns[1];
+   _DNS_[2] = pnetinfo->dns[2];
+   _DNS_[3] = pnetinfo->dns[3];
+   _DHCP_   = pnetinfo->dhcp;
+}
+
+void wizchip_getnetinfo(wiz_NetInfo* pnetinfo)
+{
+   getSHAR(pnetinfo->mac);
+   getGAR(pnetinfo->gw);
+   getSUBR(pnetinfo->sn);
+   getSIPR(pnetinfo->ip);
+   pnetinfo->dns[0]= _DNS_[0];
+   pnetinfo->dns[1]= _DNS_[1];
+   pnetinfo->dns[2]= _DNS_[2];
+   pnetinfo->dns[3]= _DNS_[3];
+   pnetinfo->dhcp  = _DHCP_;
+}
+
+int8_t wizchip_setnetmode(netmode_type netmode)
+{
+   uint8_t tmp = 0;
+#if _WIZCHIP_ != 5500   
+   if(netmode & ~(NM_WAKEONLAN | NM_PPPOE | NM_PINGBLOCK)) return -1;
+#else
+   if(netmode & ~(NM_WAKEONLAN | NM_PPPOE | NM_PINGBLOCK | NM_FORCEARP)) return -1;
+#endif      
+   tmp = getMR();
+   tmp |= (uint8_t)netmode;
+   setMR(tmp);
+   return 0;
+}
+
+netmode_type wizchip_getnetmode(void)
+{
+   return (netmode_type) getMR();
+}
+
+void wizchip_settimeout(wiz_NetTimeout* nettime)
+{
+   setRCR(nettime->retry_cnt);
+   setRTR(nettime->time_100us);
+}
+
+void wizchip_gettimeout(wiz_NetTimeout* nettime)
+{
+   nettime->retry_cnt = getRCR();
+   nettime->time_100us = getRTR();
+}

iolibrary/Ethernet/wizchip_conf.h

@@ -0,0 +1,548 @@
+//*****************************************************************************
+//
+//! \file wizchip_conf.h
+//! \brief WIZCHIP Config Header File.
+//! \version 1.0.0
+//! \date 2013/10/21
+//! \par  Revision history
+//!       <2013/10/21> 1st Release
+//! \author MidnightCow
+//! \copyright
+//!
+//! Copyright (c)  2013, WIZnet Co., LTD.
+//! All rights reserved.
+//! 
+//! Redistribution and use in source and binary forms, with or without 
+//! modification, are permitted provided that the following conditions 
+//! are met: 
+//! 
+//!     * Redistributions of source code must retain the above copyright 
+//! notice, this list of conditions and the following disclaimer. 
+//!     * Redistributions in binary form must reproduce the above copyright
+//! notice, this list of conditions and the following disclaimer in the
+//! documentation and/or other materials provided with the distribution. 
+//!     * Neither the name of the <ORGANIZATION> nor the names of its 
+//! contributors may be used to endorse or promote products derived 
+//! from this software without specific prior written permission. 
+//! 
+//! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! THE POSSIBILITY OF SUCH DAMAGE.
+//
+//*****************************************************************************
+
+/**
+ * @defgroup extra_functions 2. WIZnet Extra Functions
+ *
+ * @brief These functions is optional function. It could be replaced at WIZCHIP I/O function because they were made by WIZCHIP I/O functions.  
+ * @details There are functions of configuring WIZCHIP, network, interrupt, phy, network information and timer. \n
+ * 
+ */
+
+#ifndef  _WIZCHIP_CONF_H_
+#define  _WIZCHIP_CONF_H_
+
+#include <stdint.h>
+/**
+ * @brief Select WIZCHIP.
+ * @todo You should select one, \b 5100, \b 5200 ,\b 5500 or etc. \n\n
+ *       ex> <code> #define \_WIZCHIP_      5500 </code>
+ */
+#define _WIZCHIP_                      5500   // 5100, 5200, 5500
+
+#define _WIZCHIP_IO_MODE_NONE_         0x0000
+#define _WIZCHIP_IO_MODE_BUS_          0x0100 /**< Bus interface mode */
+#define _WIZCHIP_IO_MODE_SPI_          0x0200 /**< SPI interface mode */
+//#define _WIZCHIP_IO_MODE_IIC_          0x0400
+//#define _WIZCHIP_IO_MODE_SDIO_         0x0800
+// Add to
+//
+
+#define _WIZCHIP_IO_MODE_BUS_DIR_      (_WIZCHIP_IO_MODE_BUS_ + 1) /**< BUS interface mode for direct  */
+#define _WIZCHIP_IO_MODE_BUS_INDIR_    (_WIZCHIP_IO_MODE_BUS_ + 2) /**< BUS interface mode for indirect */
+
+#define _WIZCHIP_IO_MODE_SPI_VDM_      (_WIZCHIP_IO_MODE_SPI_ + 1) /**< SPI interface mode for variable length data*/
+#define _WIZCHIP_IO_MODE_SPI_FDM_      (_WIZCHIP_IO_MODE_SPI_ + 2) /**< SPI interface mode for fixed length data mode*/
+
+
+#if   (_WIZCHIP_ == 5100)
+   #define _WIZCHIP_ID_                "W5100\0"
+/**
+ * @brief Define interface mode.
+ * @todo you should select interface mode as chip. Select one of @ref \_WIZCHIP_IO_MODE_SPI_ , @ref \_WIZCHIP_IO_MODE_BUS_DIR_ or @ref \_WIZCHIP_IO_MODE_BUS_INDIR_
+ */
+
+// #define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_BUS_DIR_
+// #define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_BUS_INDIR_
+   #define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_SPI_
+
+#elif (_WIZCHIP_ == 5200)
+   #define _WIZCHIP_ID_                "W5200\0"
+/**
+ * @brief Define interface mode.
+ * @todo you should select interface mode as chip. Select one of @ref \_WIZCHIP_IO_MODE_SPI_ or @ref \_WIZCHIP_IO_MODE_BUS_INDIR_
+ */
+// #define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_BUS_INDIR_
+   #define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_SPI_
+   #include "W5200/w5200.h"
+#elif (_WIZCHIP_ == 5500)
+  #define _WIZCHIP_ID_                 "W5500\0"
+  
+/**
+ * @brief Define interface mode. \n
+ * @todo Should select interface mode as chip. 
+ *        - @ref \_WIZCHIP_IO_MODE_SPI_ \n
+ *          -@ref \_WIZCHIP_IO_MODE_SPI_VDM_ : Valid only in @ref \_WIZCHIP_ == 5500 \n
+ *          -@ref \_WIZCHIP_IO_MODE_SPI_FDM_ : Valid only in @ref \_WIZCHIP_ == 5500 \n
+ *        - @ref \_WIZCHIP_IO_MODE_BUS_ \n
+ *          - @ref \_WIZCHIP_IO_MODE_BUS_DIR_ \n
+ *          - @ref \_WIZCHIP_IO_MODE_BUS_INDIR_ \n
+ *        - Others will be defined in future. \n\n
+ *        ex> <code> #define \_WIZCHIP_IO_MODE_ \_WIZCHIP_IO_MODE_SPI_VDM_ </code>
+ *       
+ */
+   //#define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_SPI_FDM_
+   #define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_SPI_VDM_
+   #include "W5500/w5500.h"
+#else 
+   #error "Unknown defined _WIZCHIP_. You should define one of 5100, 5200, and 5500 !!!"
+#endif
+
+#ifndef _WIZCHIP_IO_MODE_
+   #error "Undefined _WIZCHIP_IO_MODE_. You should define it !!!"
+#endif
+
+/**
+ * @brief Define I/O base address when BUS IF mode.
+ * @todo Should re-define it to fit your system when BUS IF Mode (@ref \_WIZCHIP_IO_MODE_BUS_,
+ *       @ref \_WIZCHIP_IO_MODE_BUS_DIR_, @ref \_WIZCHIP_IO_MODE_BUS_INDIR_). \n\n
+ *       ex> <code> #define \_WIZCHIP_IO_BASE_      0x00008000 </code>
+ */
+#define _WIZCHIP_IO_BASE_              0x00000000  // 
+
+#if _WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_BUS
+   #ifndef _WIZCHIP_IO_BASE_
+      #error "You should be define _WIZCHIP_IO_BASE to fit your system memory map."
+   #endif
+#endif   
+
+#if _WIZCHIP_ > 5100
+   #define _WIZCHIP_SOCK_NUM_   8   ///< The count of independant socket of @b WIZCHIP
+#else
+   #define _WIZCHIP_SOCK_NUM_   4   ///< The count of independant socket of @b WIZCHIP
+#endif      
+
+
+/********************************************************
+* WIZCHIP BASIC IF functions for SPI, SDIO, I2C , ETC.
+*********************************************************/
+/**
+ * @ingroup DATA_TYPE
+ * @brief The set of callback functions for W5500:@ref WIZCHIP_IO_Functions W5200:@ref WIZCHIP_IO_Functions_W5200
+ */
+typedef struct __WIZCHIP
+{
+   uint16_t  if_mode;               ///< host interface mode
+   uint8_t   id[6];                 ///< @b WIZCHIP ID such as @b 5100, @b 5200, @b 5500, and so on.
+   /**
+    * The set of critical section callback func.
+    */
+   struct _CRIS
+   {
+      void (*_enter)  (void);       ///< crtical section enter 
+      void (*_exit) (void);         ///< critial section exit  
+   }CRIS;  
+   /**
+    *  The set of @ref\_WIZCHIP_ select control callback func.
+    */
+   struct _CS
+   {
+      void (*_select)  (void);      ///< @ref \_WIZCHIP_ selected
+      void (*_deselect)(void);      ///< @ref \_WIZCHIP_ deselected
+   }CS;  
+   /**
+    * The set of interface IO callback func.
+    */
+   union _IF
+   {	 
+      /**
+       * For BUS interface IO
+       */  
+      struct
+      {
+         uint8_t  (*_read_byte)  (uint32_t AddrSel);
+         void     (*_write_byte) (uint32_t AddrSel, uint8_t wb);
+      }BUS;      
+      /**
+       * For SPI interface IO
+       */
+      struct
+      {
+         uint8_t (*_read_byte)   (void);
+         void    (*_write_byte)  (uint8_t wb);
+      }SPI;
+      // To be added
+      //
+   }IF;
+}_WIZCHIP;
+
+extern _WIZCHIP  WIZCHIP;
+
+/**
+ * @ingroup DATA_TYPE
+ *  WIZCHIP control type enumration used in @ref ctlwizchip().
+ */
+typedef enum
+{
+   CW_RESET_WIZCHIP,   ///< Resets WIZCHIP by softly
+   CW_INIT_WIZCHIP,    ///< Inializes to WIZCHIP with SOCKET buffer size 2 or 1 dimension array typed uint8_t.
+   CW_GET_INTERRUPT,   ///< Get Interrupt status of WIZCHIP
+   CW_CLR_INTERRUPT,   ///< Clears interrupt
+   CW_SET_INTRMASK,    ///< Masks interrupt
+   CW_GET_INTRMASK,    ///< Get interrupt mask
+   CW_SET_INTRTIME,    ///< Set interval time between the current and next interrupt. 
+   CW_GET_INTRTIME,    ///< Set interval time between the current and next interrupt. 
+   CW_GET_ID,          ///< Gets WIZCHIP name.
+
+#if _WIZCHIP_ ==  5500
+   CW_RESET_PHY,       ///< Resets internal PHY. Valid Only W5000
+   CW_SET_PHYCONF,     ///< When PHY configured by interal register, PHY operation mode (Manual/Auto, 10/100, Half/Full). Valid Only W5000 
+   CW_GET_PHYCONF,     ///< Get PHY operation mode in interal register. Valid Only W5000
+   CW_GET_PHYSTATUS,   ///< Get real PHY status on operating. Valid Only W5000
+   CW_SET_PHYPOWMODE,  ///< Set PHY power mode as noraml and down when PHYSTATUS.OPMD == 1. Valid Only W5000
+#endif
+   CW_GET_PHYPOWMODE,  ///< Get PHY Power mode as down or normal
+   CW_GET_PHYLINK      ///< Get PHY Link status
+}ctlwizchip_type;
+
+/**
+ * @ingroup DATA_TYPE
+ *  Network control type enumration used in @ref ctlnetwork().
+ */
+typedef enum
+{
+   CN_SET_NETINFO,  ///< Set Network with @ref wiz_NetInfo
+   CN_GET_NETINFO,  ///< Get Network with @ref wiz_NetInfo
+   CN_SET_NETMODE,  ///< Set network mode as WOL, PPPoE, Ping Block, and Force ARP mode
+   CN_GET_NETMODE,  ///< Get network mode as WOL, PPPoE, Ping Block, and Force ARP mode
+   CN_SET_TIMEOUT,  ///< Set network timeout as retry count and time.
+   CN_GET_TIMEOUT,  ///< Get network timeout as retry count and time.
+}ctlnetwork_type;
+
+/**
+ * @ingroup DATA_TYPE
+ *  Interrupt kind when CW_SET_INTRRUPT, CW_GET_INTERRUPT, CW_SET_INTRMASK
+ *  and CW_GET_INTRMASK is used in @ref ctlnetwork().
+ *  It can be used with OR operation.
+ */
+typedef enum
+{
+#if _WIZCHIP_ > 5200
+   IK_WOL               = (1 << 4),   ///< Wake On Lan by receiving the magic packet. Valid in W500.
+#endif   
+
+   IK_PPPOE_TERMINATED  = (1 << 5),   ///< PPPoE Disconnected
+
+#if _WIZCHIP_ != 5200
+   IK_DEST_UNREACH      = (1 << 6),   ///< Destination IP & Port Unreable, No use in W5200
+#endif   
+
+   IK_IP_CONFLICT       = (1 << 7),   ///< IP conflict occurred
+
+   IK_SOCK_0            = (1 << 8),   ///< Socket 0 interrupt
+   IK_SOCK_1            = (1 << 9),   ///< Socket 1 interrupt
+   IK_SOCK_2            = (1 << 10),  ///< Socket 2 interrupt
+   IK_SOCK_3            = (1 << 11),  ///< Socket 3 interrupt
+#if _WIZCHIP_ > 5100   
+   IK_SOCK_4            = (1 << 12),  ///< Socket 4 interrupt, No use in 5100
+   IK_SOCK_5            = (1 << 13),  ///< Socket 5 interrupt, No use in 5100
+   IK_SOCK_6            = (1 << 14),  ///< Socket 6 interrupt, No use in 5100
+   IK_SOCK_7            = (1 << 15),  ///< Socket 7 interrupt, No use in 5100
+#endif   
+
+#if _WIZCHIP_ > 5100
+   IK_SOCK_ALL          = (0xFF << 8) ///< All Socket interrpt
+#else
+   IK_SOCK_ALL          = (0x0F << 8) ///< All Socket interrpt 
+#endif      
+}intr_kind;
+
+#define PHY_CONFBY_HW            0     ///< Configured PHY operation mode by HW pin
+#define PHY_CONFBY_SW            1     ///< Configured PHY operation mode by SW register   
+#define PHY_MODE_MANUAL          0     ///< Configured PHY operation mode with user setting.
+#define PHY_MODE_AUTONEGO        1     ///< Configured PHY operation mode with auto-negotiation
+#define PHY_SPEED_10             0     ///< Link Speed 10
+#define PHY_SPEED_100            1     ///< Link Speed 100
+#define PHY_DUPLEX_HALF          0     ///< Link Half-Duplex
+#define PHY_DUPLEX_FULL          1     ///< Link Full-Duplex
+#define PHY_LINK_OFF             0     ///< Link Off
+#define PHY_LINK_ON              1     ///< Link On
+#define PHY_POWER_NORM           0     ///< PHY power normal mode
+#define PHY_POWER_DOWN           1     ///< PHY power down mode 
+
+
+#if _WIZCHIP_ == 5500 
+/**
+ * @ingroup DATA_TYPE
+ *  It configures PHY configuration when CW_SET PHYCONF or CW_GET_PHYCONF in W5500,  
+ *  and it indicates the real PHY status configured by HW or SW in all WIZCHIP. \n
+ *  Valid only in W5500.
+ */
+typedef struct wiz_PhyConf_t
+{
+      uint8_t by;       ///< set by @ref PHY_CONFBY_HW or @ref PHY_CONFBY_SW
+      uint8_t mode;     ///< set by @ref PHY_MODE_MANUAL or @ref PHY_MODE_AUTONEGO
+      uint8_t speed;    ///< set by @ref PHY_SPEED_10 or @ref PHY_SPEED_100
+      uint8_t duplex;   ///< set by @ref PHY_DUPLEX_HALF @ref PHY_DUPLEX_FULL 
+      //uint8_t power;  ///< set by @ref PHY_POWER_NORM or @ref PHY_POWER_DOWN
+      //uint8_t link;   ///< Valid only in CW_GET_PHYSTATUS. set by @ref PHY_LINK_ON or PHY_DUPLEX_OFF 
+   }wiz_PhyConf;
+#endif   
+
+/**
+ * @ingroup DATA_TYPE
+ *  It used in setting dhcp_mode of @ref wiz_NetInfo.
+ */
+typedef enum
+{
+   NETINFO_STATIC = 1,    ///< Static IP configuration by manually.
+   NETINFO_DHCP           ///< Dynamic IP configruation from a DHCP sever
+}dhcp_mode;
+
+/**
+ * @ingroup DATA_TYPE
+ *  Network Information for WIZCHIP
+ */
+typedef struct wiz_NetInfo_t
+{
+   uint8_t mac[6];  ///< Source Mac Address
+   uint8_t ip[4];   ///< Source IP Address
+   uint8_t sn[4];   ///< Subnet Mask 
+   uint8_t gw[4];   ///< Gateway IP Address
+   uint8_t dns[4];  ///< DNS server IP Address
+   dhcp_mode dhcp;  ///< 1 - Static, 2 - DHCP
+}wiz_NetInfo;
+
+/**
+ * @ingroup DATA_TYPE
+ *  Network mode
+ */
+typedef enum
+{
+#if _WIZCHIP_ == 5500   
+   NM_FORCEARP    = (1<<1),  ///< Force to APP send whenever udp data is sent. Valid only in W5500
+#endif   
+   NM_WAKEONLAN   = (1<<5),  ///< Wake On Lan 
+   NM_PINGBLOCK   = (1<<4),  ///< Block ping-request
+   NM_PPPOE       = (1<<3),  ///< PPPoE mode
+}netmode_type;
+
+/**
+ * @ingroup DATA_TYPE
+ *  Used in CN_SET_TIMEOUT or CN_GET_TIMEOUT of @ref ctlwizchip() for timeout configruation.
+ */
+typedef struct wiz_NetTimeout_t
+{
+   uint8_t  retry_cnt;     ///< retry count 
+   uint16_t time_100us;    ///< time unit 100us
+}wiz_NetTimeout;
+
+/**
+ *@brief Registers call back function for critical section of I/O functions such as
+ *\ref WIZCHIP_READ, @ref WIZCHIP_WRITE, @ref WIZCHIP_READ_BUF and @ref WIZCHIP_WRITE_BUF.
+ *@param cris_en : callback function for critical section enter.
+ *@param cris_ex : callback function for critical section exit.
+ *@todo Describe @ref WIZCHIP_CRITICAL_ENTER and @ref WIZCHIP_CRITICAL_EXIT marco or register your functions.
+ *@note If you do not describe or register, default functions(@ref wizchip_cris_enter & @ref wizchip_cris_exit) is called.
+ */
+void reg_wizchip_cris_cbfunc(void(*cris_en)(void), void(*cris_ex)(void));
+
+
+/**
+ *@brief Registers call back function for WIZCHIP select & deselect.
+ *@param cs_sel : callback function for WIZCHIP select
+ *@param cs_desel : callback fucntion for WIZCHIP deselect
+ *@todo Describe @ref wizchip_cs_select and @ref wizchip_cs_deselect function or register your functions.
+ *@note If you do not describe or register, null function is called.
+ */
+void reg_wizchip_cs_cbfunc(void(*cs_sel)(void), void(*cs_desel)(void));
+
+/**
+ *@brief Registers call back function for bus interface.
+ *@param bus_rb   : callback function to read byte data using system bus
+ *@param bus_wb   : callback function to write byte data using system bus
+ *@todo Describe @ref wizchip_bus_readbyte and @ref wizchip_bus_writebyte function
+ *or register your functions.
+ *@note If you do not describe or register, null function is called.
+ */
+void reg_wizchip_bus_cbfunc(uint8_t (*bus_rb)(uint32_t addr), void (*bus_wb)(uint32_t addr, uint8_t wb));
+
+/**
+ *@brief Registers call back function for SPI interface.
+ *@param spi_rb : callback function to read byte usig SPI 
+ *@param spi_wb : callback function to write byte usig SPI 
+ *@todo Describe \ref wizchip_spi_readbyte and \ref wizchip_spi_writebyte function
+ *or register your functions.
+ *@note If you do not describe or register, null function is called.
+ */
+void reg_wizchip_spi_cbfunc(uint8_t (*spi_rb)(void), void (*spi_wb)(uint8_t wb));
+
+/**
+ * @ingroup extra_functions
+ * @brief Controls to the WIZCHIP.
+ * @details Resets WIZCHIP & internal PHY, Configures PHY mode, Monitor PHY(Link,Speed,Half/Full/Auto),
+ * controls interrupt & mask and so on.
+ * @param cwtype : Decides to the control type
+ * @param arg : arg type is dependent on cwtype.
+ * @return  0 : Success \n
+ *         -1 : Fail because of invalid \ref ctlwizchip_type or unsupported \ref ctlwizchip_type in WIZCHIP 
+ */          
+int8_t ctlwizchip(ctlwizchip_type cwtype, void* arg);
+
+/**
+ * @ingroup extra_functions
+ * @brief Controls to network.
+ * @details Controls to network environment, mode, timeout and so on.
+ * @param cntype : Input. Decides to the control type
+ * @param arg : Inout. arg type is dependent on cntype.
+ * @return -1 : Fail because of invalid \ref ctlnetwork_type or unsupported \ref ctlnetwork_type in WIZCHIP \n
+ *          0 : Success      
+ */          
+int8_t ctlnetwork(ctlnetwork_type cntype, void* arg);
+
+
+/* 
+ * The following functions are implemented for internal use. 
+ * but You can call these functions for code size reduction instead of ctlwizchip() and ctlnetwork().
+ */
+ 
+/**
+ * @ingroup extra_functions
+ * @brief Reset WIZCHIP by softly.
+ */ 
+void   wizchip_sw_reset(void);
+
+/**
+ * @ingroup extra_functions
+ * @brief Initializes WIZCHIP with socket buffer size
+ * @param txsize Socket tx buffer sizes. If null, initialized the default size 2KB.
+ * @param rxsize Socket rx buffer sizes. If null, initialized the default size 2KB.
+ * @return 0 : succcess \n
+ *        -1 : fail. Invalid buffer size
+ */
+int8_t wizchip_init(uint8_t* txsize, uint8_t* rxsize);
+
+/** 
+ * @ingroup extra_functions
+ * @brief Clear Interrupt of WIZCHIP.
+ * @param intr : @ref intr_kind value operated OR. It can type-cast to uint16_t.
+ */
+void wizchip_clrinterrupt(intr_kind intr);
+
+/** 
+ * @ingroup extra_functions
+ * @brief Get Interrupt of WIZCHIP.
+ * @return @ref intr_kind value operated OR. It can type-cast to uint16_t.
+ */
+intr_kind wizchip_getinterrupt(void);
+
+/** 
+ * @ingroup extra_functions
+ * @brief Mask or Unmask Interrupt of WIZCHIP.
+ * @param intr : @ref intr_kind value operated OR. It can type-cast to uint16_t.
+ */
+void wizchip_setinterruptmask(intr_kind intr);
+
+/** 
+ * @ingroup extra_functions
+ * @brief Get Interrupt mask of WIZCHIP.
+ * @return : The operated OR vaule of @ref intr_kind. It can type-cast to uint16_t.
+ */
+intr_kind wizchip_getinterruptmask(void);
+
+#if _WIZCHIP_ > 5100
+   int8_t wizphy_getphylink(void);              ///< get the link status of phy in WIZCHIP. No use in W5100
+   int8_t wizphy_getphypmode(void);             ///< get the power mode of PHY in WIZCHIP. No use in W5100
+#endif
+
+#if _WIZCHIP_ == 5500
+   void   wizphy_reset(void);                   ///< Reset phy. Vailid only in W5500
+/**
+ * @ingroup extra_functions
+ * @brief Set the phy information for WIZCHIP without power mode
+ * @param phyconf : @ref wiz_PhyConf
+ */
+   void   wizphy_setphyconf(wiz_PhyConf* phyconf);  
+ /**
+ * @ingroup extra_functions
+ * @brief Get phy configuration information.
+ * @param phyconf : @ref wiz_PhyConf
+ */
+   void   wizphy_getphyconf(wiz_PhyConf* phyconf); 
+ /**
+ * @ingroup extra_functions
+ * @brief Get phy status.
+ * @param phyconf : @ref wiz_PhyConf
+ */ 
+   void   wizphy_getphystat(wiz_PhyConf* phyconf);
+ /**
+ * @ingroup extra_functions
+ * @brief set the power mode of phy inside WIZCHIP. Refer to @ref PHYCFGR in W5500, @ref PHYSTATUS in W5200
+ * @param pmode Settig value of power down mode.
+ */   
+   int8_t wizphy_setphypmode(uint8_t pmode);    
+#endif
+
+/**
+* @ingroup extra_functions
+ * @brief Set the network information for WIZCHIP
+ * @param pnetinfo : @ref wizNetInfo
+ */
+void wizchip_setnetinfo(wiz_NetInfo* pnetinfo);
+
+/**
+ * @ingroup extra_functions
+ * @brief Get the network information for WIZCHIP
+ * @param pnetinfo : @ref wizNetInfo
+ */
+void wizchip_getnetinfo(wiz_NetInfo* pnetinfo);
+
+/**
+ * @ingroup extra_functions
+ * @brief Set the network mode such WOL, PPPoE, Ping Block, and etc. 
+ * @param pnetinfo Value of network mode. Refer to @ref netmode_type.
+ */
+int8_t wizchip_setnetmode(netmode_type netmode);
+
+/**
+ * @ingroup extra_functions
+ * @brief Get the network mode such WOL, PPPoE, Ping Block, and etc. 
+ * @return Value of network mode. Refer to @ref netmode_type.
+ */
+netmode_type wizchip_getnetmode(void);
+
+/**
+ * @ingroup extra_functions
+ * @brief Set retry time value(@ref RTR) and retry count(@ref RCR).
+ * @details @ref RTR configures the retransmission timeout period and @ref RCR configures the number of time of retransmission.  
+ * @param nettime @ref RTR value and @ref RCR value. Refer to @ref wiz_NetTimeout. 
+ */
+void wizchip_settimeout(wiz_NetTimeout* nettime);
+
+/**
+ * @ingroup extra_functions
+ * @brief Get retry time value(@ref RTR) and retry count(@ref RCR).
+ * @details @ref RTR configures the retransmission timeout period and @ref RCR configures the number of time of retransmission.  
+ * @param nettime @ref RTR value and @ref RCR value. Refer to @ref wiz_NetTimeout. 
+ */
+void wizchip_gettimeout(wiz_NetTimeout* nettime);
+
+#endif   // _WIZCHIP_CONF_H_

iolibrary/Ethernet/wizchip_socket.c

@@ -0,0 +1,688 @@
+//*****************************************************************************
+//
+//! \file wizchip_socket.c
+//! \brief SOCKET APIs Implements file.
+//! \details SOCKET APIs like as Berkeley Socket APIs. 
+//! \version 1.0.3
+//! \date 2013/10/21
+//! \par  Revision history
+//!       <2014/05/01> V1.0.3. Refer to M20140501
+//!         1. Implicit type casting -> Explicit type casting.
+//!         2. replace 0x01 with PACK_REMAINED in recvfrom()
+//!         3. Validation a destination ip in connect() & sendto(): 
+//!            It occurs a fatal error on converting unint32 address if uint8* addr parameter is not aligned by 4byte address.
+//!            Copy 4 byte addr value into temporary uint32 variable and then compares it.
+//!       <2013/12/20> V1.0.2 Refer to M20131220
+//!                    Remove Warning.
+//!       <2013/11/04> V1.0.1 2nd Release. Refer to "20131104".
+//!                    In sendto(), Add to clear timeout interrupt status (Sn_IR_TIMEOUT)
+//!       <2013/10/21> 1st Release
+//! \author MidnightCow
+//! \copyright
+//!
+//! Copyright (c)  2013, WIZnet Co., LTD.
+//! All rights reserved.
+//! 
+//! Redistribution and use in source and binary forms, with or without 
+//! modification, are permitted provided that the following conditions 
+//! are met: 
+//! 
+//!     * Redistributions of source code must retain the above copyright 
+//! notice, this list of conditions and the following disclaimer. 
+//!     * Redistributions in binary form must reproduce the above copyright
+//! notice, this list of conditions and the following disclaimer in the
+//! documentation and/or other materials provided with the distribution. 
+//!     * Neither the name of the <ORGANIZATION> nor the names of its 
+//! contributors may be used to endorse or promote products derived 
+//! from this software without specific prior written permission. 
+//! 
+//! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! THE POSSIBILITY OF SUCH DAMAGE.
+//
+//*****************************************************************************
+#include "wizchip_socket.h"
+
+#define SOCK_ANY_PORT_NUM  0xC000;
+
+static uint16_t sock_any_port = SOCK_ANY_PORT_NUM;
+static uint16_t sock_io_mode = 0;
+static uint16_t sock_is_sending = 0;
+static uint16_t sock_remained_size[_WIZCHIP_SOCK_NUM_] = {0,0,};
+static uint8_t  sock_pack_info[_WIZCHIP_SOCK_NUM_] = {0,};
+
+#if _WIZCHIP_ == 5200
+   static uint16_t sock_next_rd[_WIZCHIP_SOCK_NUM_] ={0,};
+#endif
+
+#define CHECK_SOCKNUM()   \
+   do{                    \
+      if(sn > _WIZCHIP_SOCK_NUM_) return SOCKERR_SOCKNUM;   \
+   }while(0);             \
+
+#define CHECK_SOCKMODE(mode)  \
+   do{                     \
+      if((getSn_MR(sn) & 0x0F) != mode) return SOCKERR_SOCKMODE;  \
+   }while(0);              \
+
+#define CHECK_SOCKINIT()   \
+   do{                     \
+      if((getSn_SR(sn) != SOCK_INIT)) return SOCKERR_SOCKINIT; \
+   }while(0);              \
+
+#define CHECK_SOCKDATA()   \
+   do{                     \
+      if(len == 0) return SOCKERR_DATALEN;   \
+   }while(0);              \
+
+
+
+int8_t wizchip_socket(uint8_t sn, uint8_t protocol, uint16_t port, uint8_t flag)
+{
+	CHECK_SOCKNUM();
+	switch(protocol)
+	{
+      case Sn_MR_TCP :
+      case Sn_MR_UDP :
+      case Sn_MR_MACRAW :
+         break;
+   #if ( _WIZCHIP_ < 5200 )
+      case Sn_MR_IPRAW :
+      case Sn_MR_PPPoE :
+         break;
+   #endif
+      default :
+         return SOCKERR_SOCKMODE;
+	}
+	if((flag & 0x06) != 0) return SOCKERR_SOCKFLAG;
+#if _WIZCHIP_ == 5200
+   if(flag & 0x10) return SOCKERR_SOCKFLAG;
+#endif
+	   
+	if(flag != 0)
+	{
+   	switch(protocol)
+   	{
+   	   case Sn_MR_TCP:
+   	      if((flag & (SF_TCP_NODELAY|SF_IO_NONBLOCK))==0) return SOCKERR_SOCKFLAG;
+   	      break;
+   	   case Sn_MR_UDP:
+   	      if(flag & SF_IGMP_VER2)
+   	      {
+   	         if((flag & SF_MULTI_ENABLE)==0) return SOCKERR_SOCKFLAG;
+   	      }
+   	      #if _WIZCHIP_ == 5500
+      	      if(flag & SF_UNI_BLOCK)
+      	      {
+      	         if((flag & SF_MULTI_ENABLE) == 0) return SOCKERR_SOCKFLAG;
+      	      }
+   	      #endif
+   	      break;
+   	   default:
+   	      break;
+   	}
+   }
+	wizchip_close(sn);
+	setSn_MR(sn, (protocol | (flag & 0xF0)));
+	if(!port)
+	{
+	   port = sock_any_port++;
+	   if(sock_any_port == 0xFFF0) sock_any_port = SOCK_ANY_PORT_NUM;
+	}
+   setSn_PORT(sn,port);	
+   setSn_CR(sn,Sn_CR_OPEN);
+   while(getSn_CR(sn));
+	sock_io_mode |= ((flag & SF_IO_NONBLOCK) << sn);   
+   sock_is_sending &= ~(1<<sn);
+   sock_remained_size[sn] = 0;
+   sock_pack_info[sn] = 0;
+   while(getSn_SR(sn) == SOCK_CLOSED);
+   return (int8_t)sn;
+}	   
+
+int8_t wizchip_close(uint8_t sn)
+{
+	CHECK_SOCKNUM();
+	
+	setSn_CR(sn,Sn_CR_CLOSE);
+   /* wait to process the command... */
+	while( getSn_CR(sn) );
+	/* clear all interrupt of the socket. */
+	setSn_IR(sn, 0xFF);
+	sock_is_sending &= ~(1<<sn);
+	sock_remained_size[sn] = 0;
+	sock_pack_info[sn] = 0;
+	while(getSn_SR(sn) != SOCK_CLOSED);
+	return SOCK_OK;
+}
+
+int8_t wizchip_listen(uint8_t sn)
+{
+	CHECK_SOCKNUM();
+   CHECK_SOCKMODE(Sn_MR_TCP);
+	CHECK_SOCKINIT();
+	setSn_CR(sn,Sn_CR_LISTEN);
+	while(getSn_CR(sn));
+   while(getSn_SR(sn) != SOCK_LISTEN)
+   {
+      if(getSn_CR(sn) == SOCK_CLOSED)
+      {
+         wizchip_close(sn);
+         return SOCKERR_SOCKCLOSED;
+      }
+   }
+   return SOCK_OK;
+}
+
+
+int8_t wizchip_connect(uint8_t sn, uint8_t * addr, uint16_t port)
+{
+   CHECK_SOCKNUM();
+   CHECK_SOCKMODE(Sn_MR_TCP);
+   CHECK_SOCKINIT();
+   //M20140501 : For avoiding fatal error on memory align mismatched
+   //if( *((uint32_t*)addr) == 0xFFFFFFFF || *((uint32_t*)addr) == 0) return SOCKERR_IPINVALID;
+   {
+      uint32_t taddr;
+      taddr = ((uint32_t)addr[0] & 0x000000FF);
+      taddr = (taddr << 8) + ((uint32_t)addr[1] & 0x000000FF);
+      taddr = (taddr << 8) + ((uint32_t)addr[2] & 0x000000FF);
+      taddr = (taddr << 8) + ((uint32_t)addr[0] & 0x000000FF);
+      if( taddr == 0xFFFFFFFF || taddr == 0) return SOCKERR_IPINVALID;
+   }
+   //
+	
+	if(port == 0) return SOCKERR_PORTZERO;
+	setSn_DIPR(sn,addr);
+	setSn_DPORT(sn,port);
+   #if _WIZCHIP_ == 5200   // for W5200 ARP errata 
+      setSUBR(0);
+   #endif
+	setSn_CR(sn,Sn_CR_CONNECT);
+   while(getSn_CR(sn));
+   if(sock_io_mode & (1<<sn)) return SOCK_BUSY;
+   while(getSn_SR(sn) != SOCK_ESTABLISHED)
+   {   
+		if (getSn_IR(sn) & Sn_IR_TIMEOUT)
+		{
+			setSn_IR(sn, Sn_IR_TIMEOUT);
+         #if _WIZCHIP_ == 5200   // for W5200 ARP errata 
+            setSUBR((uint8_t*)"\x00\x00\x00\x00");
+         #endif
+         return SOCKERR_TIMEOUT;
+		}
+	}
+   #if _WIZCHIP_ == 5200   // for W5200 ARP errata 
+      setSUBR((uint8_t*)"\x00\x00\x00\x00");
+   #endif
+   
+   return SOCK_OK;
+}
+
+int8_t wizchip_disconnect(uint8_t sn)
+{
+   CHECK_SOCKNUM();
+   CHECK_SOCKMODE(Sn_MR_TCP);
+	setSn_CR(sn,Sn_CR_DISCON);
+	/* wait to process the command... */
+	while(getSn_CR(sn));
+	sock_is_sending &= ~(1<<sn);
+   if(sock_io_mode & (1<<sn)) return SOCK_BUSY;
+	while(getSn_SR(sn) != SOCK_CLOSED)
+	{
+	   if(getSn_IR(sn) & Sn_IR_TIMEOUT)
+	   {
+	      wizchip_close(sn);
+	      return SOCKERR_TIMEOUT;
+	   }
+	}
+	return SOCK_OK;
+}
+
+int32_t wizchip_send(uint8_t sn, uint8_t * buf, uint16_t len)
+{
+   uint8_t tmp=0;
+   uint16_t freesize=0;
+   
+   CHECK_SOCKNUM();
+   CHECK_SOCKMODE(Sn_MR_TCP);
+   CHECK_SOCKDATA();
+   tmp = getSn_SR(sn);
+   if(tmp != SOCK_ESTABLISHED && tmp != SOCK_CLOSE_WAIT) return SOCKERR_SOCKSTATUS;
+   if( sock_is_sending & (1<<sn) )
+   {
+      tmp = getSn_IR(sn);
+      if(tmp & Sn_IR_SENDOK)
+      {
+         setSn_IR(sn, Sn_IR_SENDOK);
+         #if _WZICHIP_ == 5200
+            if(getSn_TX_RD(sn) != sock_next_rd[sn])
+            {
+               setSn_CR(sn,Sn_CR_SEND);
+               while(getSn_CR(sn));
+               return SOCKERR_BUSY;
+            }
+         #endif
+         sock_is_sending &= ~(1<<sn);         
+      }
+      else if(tmp & Sn_IR_TIMEOUT)
+      {
+         wizchip_close(sn);
+         return SOCKERR_TIMEOUT;
+      }
+      else return SOCK_BUSY;
+   }
+   freesize = getSn_TxMAX(sn);
+   if (len > freesize) len = freesize; // check size not to exceed MAX size.
+   while(1)
+   {
+      freesize = getSn_TX_FSR(sn);
+      tmp = getSn_SR(sn);
+      if ((tmp != SOCK_ESTABLISHED) && (tmp != SOCK_CLOSE_WAIT))
+      {
+         wizchip_close(sn);
+         return SOCKERR_SOCKSTATUS;
+      }
+      if( (sock_io_mode & (1<<sn)) && (len > freesize) ) return SOCK_BUSY;
+      if(len <= freesize) break;
+   }
+   wiz_send_data(sn, buf, len);
+   #if _WIZCHIP_ == 5200
+      sock_next_rd[sn] = getSn_TX_RD(sn) + len;
+   #endif
+   setSn_CR(sn,Sn_CR_SEND);
+   /* wait to process the command... */
+   while(getSn_CR(sn));
+   sock_is_sending |= (1 << sn);
+   return len;
+}
+
+
+int32_t wizchip_recv(uint8_t sn, uint8_t * buf, uint16_t len)
+{
+   uint8_t  tmp = 0;
+   uint16_t recvsize = 0;
+   CHECK_SOCKNUM();
+   CHECK_SOCKMODE(Sn_MR_TCP);
+   CHECK_SOCKDATA();
+   
+   recvsize = getSn_RxMAX(sn);
+   if(recvsize < len) len = recvsize;
+   while(1)
+   {
+      recvsize = getSn_RX_RSR(sn);
+      tmp = getSn_SR(sn);
+      if (tmp != SOCK_ESTABLISHED)
+      {
+         if(tmp == SOCK_CLOSE_WAIT)
+         {
+            if(recvsize != 0) break;
+            else if(getSn_TX_FSR(sn) == getSn_TxMAX(sn))
+            {
+               wizchip_close(sn);
+               return SOCKERR_SOCKSTATUS;
+            }
+         }
+         else
+         {
+            wizchip_close(sn);
+            return SOCKERR_SOCKSTATUS;
+         }
+      }
+      if((sock_io_mode & (1<<sn)) && (recvsize == 0)) return SOCK_BUSY;
+      if(recvsize != 0) break;
+   };
+   if(recvsize < len) len = recvsize;
+   wiz_recv_data(sn, buf, len);
+   setSn_CR(sn,Sn_CR_RECV);
+   while(getSn_CR(sn));
+   return len;
+}
+
+int32_t wizchip_sendto(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t port)
+{
+   uint8_t tmp = 0;
+   uint16_t freesize = 0;
+   CHECK_SOCKNUM();
+   switch(getSn_MR(sn) & 0x0F)
+   {
+      case Sn_MR_UDP:
+      case Sn_MR_MACRAW:
+         break;
+      default:
+         return SOCKERR_SOCKMODE;
+   }
+   CHECK_SOCKDATA();
+   //M20140501 : For avoiding fatal error on memory align mismatched
+   //if(*((uint32_t*)addr) == 0) return SOCKERR_IPINVALID;
+   {
+      uint32_t taddr;
+      taddr = ((uint32_t)addr[0]) & 0x000000FF;
+      taddr = (taddr << 8) + ((uint32_t)addr[1] & 0x000000FF);
+      taddr = (taddr << 8) + ((uint32_t)addr[2] & 0x000000FF);
+      taddr = (taddr << 8) + ((uint32_t)addr[3] & 0x000000FF);
+   }
+   //
+   if(*((uint32_t*)addr) == 0) return SOCKERR_IPINVALID;
+   if(port == 0)               return SOCKERR_PORTZERO;
+   tmp = getSn_SR(sn);
+   if(tmp != SOCK_MACRAW && tmp != SOCK_UDP) return SOCKERR_SOCKSTATUS;
+      
+   setSn_DIPR(sn,addr);
+   setSn_DPORT(sn,port);      
+   freesize = getSn_TxMAX(sn);
+   if (len > freesize) len = freesize; // check size not to exceed MAX size.
+   while(1)
+   {
+      freesize = getSn_TX_FSR(sn);
+      if(getSn_SR(sn) == SOCK_CLOSED) return SOCKERR_SOCKCLOSED;
+      if( (sock_io_mode & (1<<sn)) && (len > freesize) ) return SOCK_BUSY;
+      if(len <= freesize) break;
+   };
+	wiz_send_data(sn, buf, len);
+
+   #if _WIZCHIP_ == 5200   // for W5200 ARP errata 
+      setSUBR(0);
+   #endif
+
+	setSn_CR(sn,Sn_CR_SEND);
+	/* wait to process the command... */
+	while(getSn_CR(sn));
+   #if _WIZCHIP_ == 5200   // for W5200 ARP errata 
+      setSUBR((uint8_t*)"\x00\x00\x00\x00");
+   #endif
+   while(1)
+   {
+      tmp = getSn_IR(sn);
+      if(tmp & Sn_IR_SENDOK)
+      {
+         setSn_IR(sn, Sn_IR_SENDOK);
+         break;
+      }
+      //M:20131104
+      //else if(tmp & Sn_IR_TIMEOUT) return SOCKERR_TIMEOUT;
+      else if(tmp & Sn_IR_TIMEOUT)
+      {
+         setSn_IR(sn, Sn_IR_TIMEOUT);
+         return SOCKERR_TIMEOUT;
+      }
+      ////////////
+   }
+	return len;
+}
+
+
+
+int32_t wizchip_recvfrom(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t *port)
+{
+   uint8_t  mr;
+   uint8_t  head[8];
+	uint16_t pack_len=0;
+
+   CHECK_SOCKNUM();
+   //CHECK_SOCKMODE(Sn_MR_UDP);
+   switch((mr=getSn_MR(sn)) & 0x0F)
+   {
+      case Sn_MR_UDP:
+      case Sn_MR_MACRAW:
+         break;
+   #if ( _WIZCHIP_ < 5200 )         
+      case Sn_MR_IPRAW:
+      case Sn_MR_PPPoE:
+         break;
+   #endif
+      default:
+         return SOCKERR_SOCKMODE;
+   }
+   CHECK_SOCKDATA();
+   if(sock_remained_size[sn] == 0)
+   {
+      while(1)
+      {
+         pack_len = getSn_RX_RSR(sn);
+         if(getSn_SR(sn) == SOCK_CLOSED) return SOCKERR_SOCKCLOSED;
+         if( (sock_io_mode & (1<<sn)) && (pack_len == 0) ) return SOCK_BUSY;
+         if(pack_len != 0) break;
+      };
+   }
+   sock_pack_info[sn] = PACK_COMPLETED;
+	switch (mr & 0x07)
+	{
+	   case Sn_MR_UDP :
+	      if(sock_remained_size[sn] == 0)
+	      {
+   			wiz_recv_data(sn, head, 8);
+   			setSn_CR(sn,Sn_CR_RECV);
+   			while(getSn_CR(sn));
+   			// read peer's IP address, port number & packet length
+    			addr[0] = head[0];
+   			addr[1] = head[1];
+   			addr[2] = head[2];
+   			addr[3] = head[3];
+   			*port = head[4];
+   			*port = (*port << 8) + head[5];
+   			sock_remained_size[sn] = head[6];
+   			sock_remained_size[sn] = (sock_remained_size[sn] << 8) + head[7];
+   			sock_pack_info[sn] = PACK_FIRST;
+   	   }
+			if(len < sock_remained_size[sn]) pack_len = len;
+			else pack_len = sock_remained_size[sn];
+			//
+			// Need to packet length check (default 1472)
+			//
+   		wiz_recv_data(sn, buf, pack_len); // data copy.
+			break;
+	   case Sn_MR_MACRAW :
+	      if(sock_remained_size[sn] == 0)
+	      {
+   			wiz_recv_data(sn, head, 2);
+   			setSn_CR(sn,Sn_CR_RECV);
+   			while(getSn_CR(sn));
+   			// read peer's IP address, port number & packet length
+    			sock_remained_size[sn] = head[0];
+   			sock_remained_size[sn] = (sock_remained_size[sn] <<8) + head[1];
+   			if(sock_remained_size[sn] > 1514) 
+   			{
+   			   wizchip_close(sn);
+   			   return SOCKFATAL_PACKLEN;
+   			}
+   			sock_pack_info[sn] = PACK_FIRST;
+   	   }
+			if(len < sock_remained_size[sn]) pack_len = len;
+			else pack_len = sock_remained_size[sn];
+			wiz_recv_data(sn,buf,pack_len);
+		   break;
+   #if ( _WIZCHIP_ < 5200 )
+		case Sn_MR_IPRAW:
+		   if(sock_remained_size[sn] == 0)
+		   {
+   			wiz_recv_data(sn, head, 6);
+   			setSn_CR(sn,Sn_CR_RECV);
+   			while(getSn_CR(sn));
+   			addr[0] = head[0];
+   			addr[1] = head[1];
+   			addr[2] = head[2];
+   			addr[3] = head[3];
+   			sock_remained_size[sn] = head[4];
+   			sock_remaiend_size[sn] = (sock_remained_size[sn] << 8) + head[5];
+   			sock_pack_info[sn] = PACK_FIRST;
+         }
+			//
+			// Need to packet length check
+			//
+			if(len < sock_remained_size[sn]) pack_len = len;
+			else pack_len = sock_remained_size[sn];
+   		wiz_recv_data(sn, buf, pack_len); // data copy.
+			break;
+   #endif
+      default:
+         wiz_recv_ignore(sn, pack_len); // data copy.
+         sock_remained_size[sn] = pack_len;
+         break;
+   }
+	setSn_CR(sn,Sn_CR_RECV);
+	/* wait to process the command... */
+	while(getSn_CR(sn)) ;
+	sock_remained_size[sn] -= pack_len;
+	//M20140501 : replace 0x01 with PACK_REMAINED
+	//if(sock_remained_size[sn] != 0) sock_pack_info[sn] |= 0x01;
+	if(sock_remained_size[sn] != 0) sock_pack_info[sn] |= PACK_REMAINED;
+   //
+ 	return pack_len;
+}
+
+
+int8_t  wizchip_ctlsocket(uint8_t sn, ctlsock_type cstype, void* arg)
+{
+   uint8_t tmp = 0;
+   CHECK_SOCKNUM();
+   switch(cstype)
+   {
+      case CS_SET_IOMODE:
+         tmp = *((uint8_t*)arg);
+         if(tmp == SOCK_IO_NONBLOCK)  sock_io_mode |= (1<<sn);
+         else if(tmp == SOCK_IO_BLOCK) sock_io_mode &= ~(1<<sn);
+         else return SOCKERR_ARG;
+         break;
+      case CS_GET_IOMODE:   
+         //M20140501 : implict type casting -> explict type casting
+         //*((uint8_t*)arg) = (sock_io_mode >> sn) & 0x0001;
+         *((uint8_t*)arg) = (uint8_t)((sock_io_mode >> sn) & 0x0001);
+         //
+         break;
+      case CS_GET_MAXTXBUF:
+         *((uint16_t*)arg) = getSn_TxMAX(sn);
+         break;
+      case CS_GET_MAXRXBUF:    
+         *((uint16_t*)arg) = getSn_RxMAX(sn);
+         break;
+      case CS_CLR_INTERRUPT:
+         if( (*(uint8_t*)arg) > SIK_ALL) return SOCKERR_ARG;
+         setSn_IR(sn,*(uint8_t*)arg);
+         break;
+      case CS_GET_INTERRUPT:
+         *((uint8_t*)arg) = getSn_IR(sn);
+         break;
+      case CS_SET_INTMASK:  
+         if( (*(uint8_t*)arg) > SIK_ALL) return SOCKERR_ARG;
+         setSn_IMR(sn,*(uint8_t*)arg);
+         break;
+      case CS_GET_INTMASK:   
+         *((uint8_t*)arg) = getSn_IMR(sn);
+      default:
+         return SOCKERR_ARG;
+   }
+   return SOCK_OK;
+}
+
+int8_t  wizchip_setsockopt(uint8_t sn, sockopt_type sotype, void* arg)
+{
+ // M20131220 : Remove warning
+ //uint8_t tmp;
+   CHECK_SOCKNUM();
+   switch(sotype)
+   {
+      case SO_TTL:
+         setSn_TTL(sn,*(uint8_t*)arg);
+         break;
+      case SO_TOS:
+         setSn_TOS(sn,*(uint8_t*)arg);
+         break;
+      case SO_MSS:
+         setSn_MSSR(sn,*(uint16_t*)arg);
+         break;
+      case SO_DESTIP:
+         setSn_DIPR(sn, (uint8_t*)arg);
+         break;
+      case SO_DESTPORT:
+         setSn_DPORT(sn, *(uint16_t*)arg);
+         break;
+#if _WIZCHIP_ != 5100
+      case SO_KEEPALIVESEND:
+         CHECK_SOCKMODE(Sn_MR_TCP);
+         #if _WIZCHIP_ > 5200
+            if(getSn_KPALVTR(sn) != 0) return SOCKERR_SOCKOPT;
+         #endif
+            setSn_CR(sn,Sn_CR_SEND_KEEP);
+            while(getSn_CR(sn) != 0)
+            {
+               // M20131220
+         		//if ((tmp = getSn_IR(sn)) & Sn_IR_TIMEOUT)
+               if (getSn_IR(sn) & Sn_IR_TIMEOUT)
+         		{
+         			setSn_IR(sn, Sn_IR_TIMEOUT);
+                  return SOCKERR_TIMEOUT;
+         		}
+            }
+         break;
+   #if _WIZCHIP_ > 5200
+      case SO_KEEPALIVEAUTO:
+         CHECK_SOCKMODE(Sn_MR_TCP);
+         setSn_KPALVTR(sn,*(uint8_t*)arg);
+         break;
+   #endif      
+#endif   
+      default:
+         return SOCKERR_ARG;
+   }   
+   return SOCK_OK;
+}
+
+int8_t  wizchip_getsockopt(uint8_t sn, sockopt_type sotype, void* arg)
+{
+   CHECK_SOCKNUM();
+   switch(sotype)
+   {
+      case SO_FLAG:
+         *(uint8_t*)arg = getSn_MR(sn) & 0xF0;
+         break;
+      case SO_TTL:
+         *(uint8_t*) arg = getSn_TTL(sn);
+         break;
+      case SO_TOS:
+         *(uint8_t*) arg = getSn_TOS(sn);
+         break;
+      case SO_MSS:   
+         *(uint8_t*) arg = getSn_MSSR(sn);
+      case SO_DESTIP:
+         getSn_DIPR(sn, (uint8_t*)arg);
+         break;
+      case SO_DESTPORT:  
+         *(uint16_t*) arg = getSn_DPORT(sn);
+         break;
+   #if _WIZCHIP_ > 5200   
+      case SO_KEEPALIVEAUTO:
+         CHECK_SOCKMODE(Sn_MR_TCP);
+         *(uint16_t*) arg = getSn_KPALVTR(sn);
+         break;
+   #endif      
+      case SO_SENDBUF:
+         *(uint16_t*) arg = getSn_TX_FSR(sn);
+      case SO_RECVBUF:
+         *(uint16_t*) arg = getSn_RX_RSR(sn);
+      case SO_STATUS:
+         *(uint8_t*) arg = getSn_SR(sn);
+         break;
+      case SO_REMAINSIZE:
+         if(getSn_MR(sn) == Sn_MR_TCP)
+            *(uint16_t*)arg = getSn_RX_RSR(sn);
+         else
+            *(uint16_t*)arg = sock_remained_size[sn];
+         break;
+      case SO_PACKINFO:
+         CHECK_SOCKMODE(Sn_MR_TCP);
+         *(uint8_t*)arg = sock_pack_info[sn];
+         break;
+      default:
+         return SOCKERR_SOCKOPT;
+   }
+   return SOCK_OK;
+}

iolibrary/Ethernet/wizchip_socket.h

@@ -0,0 +1,466 @@
+//*****************************************************************************
+//
+//! \file wizchip_socket.h
+//! \brief SOCKET APIs Header file.
+//! \details SOCKET APIs like as berkeley socket api. 
+//! \version 1.0.2
+//! \date 2013/10/21
+//! \par  Revision history
+//!       <2014/05/01> V1.0.2. Refer to M20140501
+//!         1. Modify the comment : SO_REMAINED -> PACK_REMAINED
+//!         2. Add the comment as zero byte udp data reception in getsockopt(). 
+//!       <2013/10/21> 1st Release
+//! \author MidnightCow
+//! \copyright
+//!
+//! Copyright (c)  2013, WIZnet Co., LTD.
+//! All rights reserved.
+//! 
+//! Redistribution and use in source and binary forms, with or without 
+//! modification, are permitted provided that the following conditions 
+//! are met: 
+//! 
+//!     * Redistributions of source code must retain the above copyright 
+//! notice, this list of conditions and the following disclaimer. 
+//!     * Redistributions in binary form must reproduce the above copyright
+//! notice, this list of conditions and the following disclaimer in the
+//! documentation and/or other materials provided with the distribution. 
+//!     * Neither the name of the <ORGANIZATION> nor the names of its 
+//! contributors may be used to endorse or promote products derived 
+//! from this software without specific prior written permission. 
+//! 
+//! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! THE POSSIBILITY OF SUCH DAMAGE.
+//
+//*****************************************************************************
+/**
+ * @defgroup WIZnet_socket_APIs 1. WIZnet socket APIs
+ * @brief WIZnet socket APIs are based on Berkeley socket APIs,  thus it has much similar name and interface.
+ *        But there is a little bit of difference.
+ * @details
+ * <b> Comparison between WIZnet and Berkeley SOCKET APIs </b>
+ * <table>
+ *    <tr>   <td><b>API</b></td> <td><b>WIZnet</b></td> <td><b>Berkeley</b></td>   </tr>
+ *    <tr>   <td>socket()</td> <td>O</td> <td>O</td>   </tr>
+ *    <tr>   <td><b>bind()</b></td> <td>X</td> <td>O</td>   </tr>
+ *    <tr>   <td><b>listen()</b></td> <td>O</td> <td>O</td>   </tr>
+ *    <tr>   <td><b>connect()</b></td> <td>O</td> <td>O</td>   </tr>
+ *    <tr>   <td><b>accept()</b></td> <td>X</td> <td>O</td>   </tr>
+ *    <tr>   <td><b>recv()</b></td> <td>O</td> <td>O</td>    </tr>
+ *    <tr>   <td><b>send()</b></td> <td>O</td> <td>O</td>   </tr>
+ *    <tr>   <td><b>recvfrom()</b></td> <td>O</td> <td>O</td>   </tr>
+ *    <tr>   <td><b>sendto()</b></td> <td>O</td> <td>O</td>    </tr>
+ *    <tr>   <td><b>closesocket()</b></td> <td>O<br>close() & disconnect()</td> <td>O</td>   </tr>
+ * </table>
+ * There are @b bind() and @b accept() functions in @b Berkeley SOCKET API but,
+ * not in @b WIZnet SOCKET API. Because socket() of WIZnet is not only creating a SOCKET but also binding a local port number,
+ * and listen() of WIZnet is not only listening to connection request from client but also accepting the connection request. \n
+ * When you program "TCP SERVER" with Berkeley SOCKET API, you can use only one listen port.
+ * When the listen SOCKET accepts a connection request from a client, it keeps listening.
+ * After accepting the connection request, a new SOCKET is created and the new SOCKET is used in communication with the client. \n
+ * Following figure shows network flow diagram by Berkeley SOCKET API.
+ * @image html Berkeley_SOCKET.jpg "<Berkeley SOCKET API>"
+ * But, When you program "TCP SERVER" with WIZnet SOCKET API, you can use as many as 8 listen SOCKET with same port number. \n
+ * Because there's no accept() in WIZnet SOCKET APIs, when the listen SOCKET accepts a connection request from a client,
+ * it is changed in order to communicate with the client.
+ * And the changed SOCKET is not listening any more and is dedicated for communicating with the client. \n
+ * If there're many listen SOCKET with same listen port number and a client requests a connection,
+ * the SOCKET which has the smallest SOCKET number accepts the request and is changed as communication SOCKET. \n
+ * Following figure shows network flow diagram by WIZnet SOCKET API.
+ * @image html WIZnet_SOCKET.jpg "<WIZnet SOCKET API>"
+ */
+#ifndef _SOCKET_H_
+#define _SOCKET_H_
+
+#include "wizchip_conf.h"
+
+#define SOCKET                uint8_t  ///< SOCKET type define for legacy driver
+
+#define SOCK_OK               1        ///< Result is OK about socket process.
+#define SOCK_BUSY             0        ///< Socket is busy on processing the operation. Valid only Non-block IO Mode.
+#define SOCK_FATAL            -1000    ///< Result is fatal error about socket process.
+
+#define SOCK_ERROR            0        
+#define SOCKERR_SOCKNUM       (SOCK_ERROR - 1)     ///< Invalid socket number
+#define SOCKERR_SOCKOPT       (SOCK_ERROR - 2)     ///< Invalid socket option
+#define SOCKERR_SOCKINIT      (SOCK_ERROR - 3)     ///< Socket is not initialized
+#define SOCKERR_SOCKCLOSED    (SOCK_ERROR - 4)     ///< Socket unexpectedly closed.
+#define SOCKERR_SOCKMODE      (SOCK_ERROR - 5)     ///< Invalid socket mode for socket operation.
+#define SOCKERR_SOCKFLAG      (SOCK_ERROR - 6)     ///< Invalid socket flag
+#define SOCKERR_SOCKSTATUS    (SOCK_ERROR - 7)     ///< Invalid socket status for socket operation.
+#define SOCKERR_ARG           (SOCK_ERROR - 10)    ///< Invalid argrument.
+#define SOCKERR_PORTZERO      (SOCK_ERROR - 11)    ///< Port number is zero
+#define SOCKERR_IPINVALID     (SOCK_ERROR - 12)    ///< Invalid IP address
+#define SOCKERR_TIMEOUT       (SOCK_ERROR - 13)    ///< Timeout occurred
+#define SOCKERR_DATALEN       (SOCK_ERROR - 14)    ///< Data length is zero or greater than buffer max size.
+#define SOCKERR_BUFFER        (SOCK_ERROR - 15)    ///< Socket buffer is not enough for data communication.
+
+#define SOCKFATAL_PACKLEN     (SOCK_FATAL - 1)     ///< Invalid packet length. Fatal Error.
+
+/*
+ * SOCKET FLAG
+ */
+#define SF_ETHER_OWN           (Sn_MR_MFEN)        ///< In \ref Sn_MR_MACRAW, Receive only the packet as broadcast, multicast and own packet
+#define SF_IGMP_VER2           (Sn_MR_MC)          ///< In \ref Sn_MR_UDP with \ref SF_MULTI_ENABLE, Select IGMP version 2.   
+#define SF_TCP_NODELAY         (Sn_MR_ND)          ///< In \ref Sn_MR_TCP, Use to nodelayed ack.
+#define SF_MULTI_ENABLE        (Sn_MR_MULTI)       ///< In \ref Sn_MR_UDP, Enable multicast mode.
+
+#if _WIZCHIP_ == 5500
+   #define SF_BROAD_BLOCK         (Sn_MR_BCASTB)   ///< In \ref Sn_MR_UDP or \ref Sn_MR_MACRAW, Block broadcast packet. Valid only in W5500
+   #define SF_MULTI_BLOCK         (Sn_MR_MMB)      ///< In \ref Sn_MR_MACRAW, Block multicast packet. Valid only in W5500
+   #define SF_IPv6_BLOCK          (Sn_MR_MIP6B)    ///< In \ref Sn_MR_MACRAW, Block IPv6 packet. Valid only in W5500
+   #define SF_UNI_BLOCK           (Sn_MR_UCASTB)   ///< In \ref Sn_MR_UDP with \ref SF_MULTI_ENABLE. Valid only in W5500
+#endif
+
+#define SF_IO_NONBLOCK           0x01              ///< Socket nonblock io mode. It used parameter in \ref socket().
+
+/*
+ * UDP & MACRAW Packet Infomation
+ */
+#define PACK_FIRST               0x80              ///< In Non-TCP packet, It indicates to start receiving a packet.
+#define PACK_REMAINED            0x01              ///< In Non-TCP packet, It indicates to remain a packet to be received.
+#define PACK_COMPLETED           0x00              ///< In Non-TCP packet, It indicates to complete to receive a packet.
+
+/**
+ * @ingroup WIZnet_socket_APIs
+ * @brief Open a socket.
+ * @details Initializes the socket with 'sn' passed as parameter and open.
+ *
+ * @param sn Socket number. It should be <b>0 ~ @ref \_WIZCHIP_SOCK_NUM_</b>.
+ * @param protocol Protocol type to operate such as TCP, UDP and MACRAW.
+ * @param port Port number to be bined.
+ * @param flag Socket flags as \ref SF_ETHER_OWN, \ref SF_IGMP_VER2, \ref SF_TCP_NODELAY, \ref SF_MULTI_ENABLE, \ref SF_IO_NONBLOCK and so on.\n
+ *             Valid flags only in W5500 : @ref SF_BROAD_BLOCK, @ref SF_MULTI_BLOCK, @ref SF_IPv6_BLOCK, and @ref SF_UNI_BLOCK.
+ * @sa Sn_MR
+ *
+ * @return @b Success : The socket number @b 'sn' passed as parameter\n
+ *         @b Fail    :\n @ref SOCKERR_SOCKNUM     - Invalid socket number\n
+ *                        @ref SOCKERR_SOCKMODE    - Not support socket mode as TCP, UDP, and so on. \n
+ *                        @ref SOCKERR_SOCKFLAG    - Invaild socket flag.
+ */
+int8_t  wizchip_socket(uint8_t sn, uint8_t protocol, uint16_t port, uint8_t flag);
+
+/**
+ * @ingroup WIZnet_socket_APIs
+ * @brief Close a socket.
+ * @details It closes the socket  with @b'sn' passed as parameter.
+ *
+ * @param sn Socket number. It should be <b>0 ~ @ref \_WIZCHIP_SOCK_NUM_</b>.
+ *
+ * @return @b Success : @ref SOCK_OK \n
+ *         @b Fail    : @ref SOCKERR_SOCKNUM - Invalid socket number
+ */
+int8_t  wizchip_close(uint8_t sn);
+
+/**
+ * @ingroup WIZnet_socket_APIs
+ * @brief Listen to a connection request from a client.
+ * @details It is listening to a connection request from a client.
+ * If connection request is accepted successfully, the connection is established. Socket sn is used in passive(server) mode.
+ *
+ * @param sn Socket number. It should be <b>0 ~ @ref \_WIZCHIP_SOCK_NUM_</b>.
+ * @return @b Success : @ref SOCK_OK \n
+ *         @b Fail    :\n @ref SOCKERR_SOCKINIT   - Socket is not initialized \n
+ *                        @ref SOCKERR_SOCKCLOSED - Socket closed unexpectedly.
+ */
+int8_t  wizchip_listen(uint8_t sn);
+
+/**
+ * @ingroup WIZnet_socket_APIs
+ * @brief Try to connect a server.
+ * @details It requests connection to the server with destination IP address and port number passed as parameter.\n
+ * @note It is valid only in TCP client mode. 
+ *       In block io mode, it does not return until connection is completed.
+ *       In Non-block io mode, it return @ref SOCK_BUSY immediatly.
+ *
+ * @param sn Socket number. It should be <b>0 ~ @ref \_WIZCHIP_SOCK_NUM_</b>.
+ * @param addr Pointer variable of destination IP address. It should be allocated 4 bytes.
+ * @param port Destination port number.
+ *
+ * @return @b Success : @ref SOCK_OK \n
+ * @b Fail    :\n @ref SOCKERR_SOCKNUM   - Invalid socket number\n
+ *                @ref SOCKERR_SOCKMODE  - Invalid socket mode\n
+ *                @ref SOCKERR_SOCKINIT  - Socket is not initialized\n
+ *                @ref SOCKERR_IPINVALID - Wrong server IP address\n
+ *                @ref SOCKERR_PORTZERO  - Server port zero\n
+ *                @ref SOCKERR_TIMEOUT   - Timeout occurred during request connection\n
+ *                @ref SOCK_BUSY         - In non-block io mode, it returned immediatly\n 
+ */
+int8_t  wizchip_connect(uint8_t sn, uint8_t * addr, uint16_t port);
+
+/**
+ * @ingroup WIZnet_socket_APIs
+ * @brief Try to disconnect a connection socket.
+ * @details It sends request message to disconnect the TCP socket 'sn' passed as parameter to the server or client.
+ * @note It is valid only in TCP server or client mode. \n
+ *       In block io mode, it does not return until disconnection is completed. \n
+ *       In Non-block io mode, it return @ref SOCK_BUSY immediatly. \n
+
+ * @param sn Socket number. It should be <b>0 ~ @ref \_WIZCHIP_SOCK_NUM_</b>.
+ * @return @b Success :   @ref SOCK_OK \n
+ *         @b Fail    :\n @ref SOCKERR_SOCKNUM  - Invalid socket number \n
+ *                        @ref SOCKERR_SOCKMODE - Invalid operation in the socket \n
+ *                        @ref SOCKERR_TIMEOUT  - Timeout occurred \n
+ *                        @ref SOCK_BUSY        - Socket is busy.
+ */
+int8_t  wizchip_disconnect(uint8_t sn);
+
+/**
+ * @ingroup WIZnet_socket_APIs
+ * @brief	Send data to the connected peer in TCP socket.
+ * @details It is used to send outgoing data to the connected socket.
+ * @note    It is valid only in TCP server or client mode. It can't send data greater than socket buffer size. \n
+ *          In block io mode, It doesn't return until data send is completed - socket buffer size is greater than data. \n
+ *          In non-block io mode, It return @ref SOCK_BUSY immediatly when socket buffer is not enough. \n
+ * @param sn Socket number. It should be <b>0 ~ @ref \_WIZCHIP_SOCK_NUM_</b>.
+ * @param buf Pointer buffer containing data to be sent.
+ * @param len The byte length of data in buf.
+ * @return	@b Success : The sent data size \n
+ *          @b Fail    : \n @ref SOCKERR_SOCKSTATUS - Invalid socket status for socket operation \n
+ *                          @ref SOCKERR_TIMEOUT    - Timeout occurred \n
+ *                          @ref SOCKERR_SOCKMODE 	- Invalid operation in the socket \n
+ *                          @ref SOCKERR_SOCKNUM    - Invalid socket number \n
+ *                          @ref SOCKERR_DATALEN    - zero data length \n
+ *                          @ref SOCK_BUSY          - Socket is busy.
+ */
+int32_t wizchip_send(uint8_t sn, uint8_t * buf, uint16_t len);
+
+/**
+ * @ingroup WIZnet_socket_APIs
+ * @brief	Receive data from the connected peer.
+ * @details It is used to read incoming data from the connected socket.\n
+ *          It waits for data as much as the application wants to receive.
+ * @note    It is valid only in TCP server or client mode. It can't receive data greater than socket buffer size. \n
+ *          In block io mode, it doesn't return until data reception is completed - data is filled as <I>len</I> in socket buffer. \n
+ *          In non-block io mode, it return @ref SOCK_BUSY immediatly when <I>len</I> is greater than data size in socket buffer. \n
+ *
+ * @param sn  Socket number. It should be <b>0 ~ @ref \_WIZCHIP_SOCK_NUM_</b>.
+ * @param buf Pointer buffer to read incoming data.
+ * @param len The max data length of data in buf.
+ * @return	@b Success : The real received data size \n
+ *          @b Fail    :\n
+ *                     @ref SOCKERR_SOCKSTATUS - Invalid socket status for socket operation \n
+ *                     @ref SOCKERR_SOCKMODE   - Invalid operation in the socket \n
+ *                     @ref SOCKERR_SOCKNUM    - Invalid socket number \n
+ *                     @ref SOCKERR_DATALEN    - zero data length \n
+ *                     @ref SOCK_BUSY          - Socket is busy.
+ */
+int32_t wizchip_recv(uint8_t sn, uint8_t * buf, uint16_t len);
+
+/**
+ * @ingroup WIZnet_socket_APIs
+ * @brief	Sends datagram to the peer with destination IP address and port number passed as parameter.
+ * @details It sends datagram of UDP or MACRAW to the peer with destination IP address and port number passed as parameter.\n
+ *          Even if the connectionless socket has been previously connected to a specific address,
+ *          the address and port number parameters override the destination address for that particular datagram only.
+ * @note    In block io mode, It doesn't return until data send is completed - socket buffer size is greater than <I>len</I>.
+ *          In non-block io mode, It return @ref SOCK_BUSY immediatly when socket buffer is not enough.
+ *
+ * @param sn    Socket number. It should be <b>0 ~ @ref \_WIZCHIP_SOCK_NUM_</b>.
+ * @param buf   Pointer buffer to send outgoing data.
+ * @param len   The byte length of data in buf.
+ * @param addr  Pointer variable of destination IP address. It should be allocated 4 bytes.
+ * @param port  Destination port number.
+ *
+ * @return @b Success : The sent data size \n
+ *         @b Fail    :\n @ref SOCKERR_SOCKNUM     - Invalid socket number \n
+ *                        @ref SOCKERR_SOCKMODE    - Invalid operation in the socket \n
+ *                        @ref SOCKERR_SOCKSTATUS  - Invalid socket status for socket operation \n
+ *                        @ref SOCKERR_DATALEN     - zero data length \n
+ *                        @ref SOCKERR_IPINVALID   - Wrong server IP address\n
+ *                        @ref SOCKERR_PORTZERO    - Server port zero\n
+ *                        @ref SOCKERR_SOCKCLOSED  - Socket unexpectedly closed \n
+ *                        @ref SOCKERR_TIMEOUT     - Timeout occurred \n
+ *                        @ref SOCK_BUSY           - Socket is busy. 
+ */
+int32_t wizchip_sendto(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t port);
+
+/**
+ * @ingroup WIZnet_socket_APIs
+ * @brief Receive datagram of UDP or MACRAW
+ * @details This function is an application I/F function which is used to receive the data in other then TCP mode. \n
+ *          This function is used to receive UDP and MAC_RAW mode, and handle the header as well. 
+ *          This function can divide to received the packet data.
+ *          On the MACRAW SOCKET, the addr and port parameters are ignored.
+ * @note    In block io mode, it doesn't return until data reception is completed - data is filled as <I>len</I> in socket buffer
+ *          In non-block io mode, it return @ref SOCK_BUSY immediatly when <I>len</I> is greater than data size in socket buffer.
+ *
+ * @param sn   Socket number. It should be <b>0 ~ @ref \_WIZCHIP_SOCK_NUM_</b>.
+ * @param buf  Pointer buffer to read incoming data.
+ * @param len  The max data length of data in buf. 
+ *             When the received packet size <= len, receives data as packet sized.
+ *             When others, receives data as len.
+ * @param addr Pointer variable of destination IP address. It should be allocated 4 bytes.
+ *             It is valid only when the first call recvfrom for receiving the packet.
+ *             When it is valid, @ref  packinfo[7] should be set as '1' after call @ref getsockopt(sn, SO_PACKINFO, &packinfo).
+ * @param port Pointer variable of destination port number.
+ *             It is valid only when the first call recvform for receiving the packet.
+*             When it is valid, @ref  packinfo[7] should be set as '1' after call @ref getsockopt(sn, SO_PACKINFO, &packinfo).
+ *
+ * @return	@b Success : This function return real received data size for success.\n
+ *          @b Fail    : @ref SOCKERR_DATALEN    - zero data length \n
+ *                       @ref SOCKERR_SOCKMODE   - Invalid operation in the socket \n
+ *                       @ref SOCKERR_SOCKNUM    - Invalid socket number \n
+ *                       @ref SOCKBUSY           - Socket is busy.
+ */
+int32_t wizchip_recvfrom(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t *port);
+
+
+/////////////////////////////
+// SOCKET CONTROL & OPTION //
+/////////////////////////////
+#define SOCK_IO_BLOCK         0  ///< Socket Block IO Mode in @ref setsockopt().
+#define SOCK_IO_NONBLOCK      1  ///< Socket Non-block IO Mode in @ref setsockopt().
+
+/**
+ * @defgroup DATA_TYPE DATA TYPE
+ */
+
+/**
+ * @ingroup DATA_TYPE
+ * @brief The kind of Socket Interrupt.
+ * @sa Sn_IR, Sn_IMR, setSn_IR(), getSn_IR(), setSn_IMR(), getSn_IMR()
+ */
+typedef enum
+{
+   SIK_CONNECTED     = (1 << 0),    ///< conntected
+   SIK_DISCONNECTED  = (1 << 1),    ///< disconnected
+   SIK_RECEIVED      = (1 << 2),    ///< data received
+   SIK_TIMEOUT       = (1 << 3),    ///< timeout occured
+   SIK_SENT          = (1 << 4),    ///< send ok
+   SIK_ALL           = 0x1F,        ///< all interrupt
+}sockint_kind;
+
+/**
+ * @ingroup DATA_TYPE
+ * @brief The type of @ref ctlsocket().
+ */
+typedef enum
+{
+   CS_SET_IOMODE,          ///< set socket IO mode with @ref SOCK_IO_BLOCK or @ref SOCK_IO_NONBLOCK
+   CS_GET_IOMODE,          ///< get socket IO mode
+   CS_GET_MAXTXBUF,        ///< get the size of socket buffer allocated in TX memory
+   CS_GET_MAXRXBUF,        ///< get the size of socket buffer allocated in RX memory
+   CS_CLR_INTERRUPT,       ///< clear the interrupt of socket with @ref sockint_kind
+   CS_GET_INTERRUPT,       ///< get the socket interrupt. refer to @ref sockint_kind
+   CS_SET_INTMASK,         ///< set the interrupt mask of socket with @ref sockint_kind
+   CS_GET_INTMASK          ///< get the masked interrupt of socket. refer to @ref sockint_kind
+}ctlsock_type;
+
+
+/**
+ * @ingroup DATA_TYPE
+ * @brief The type of socket option in @ref setsockopt() or @ref getsockopt()
+ */ 
+typedef enum
+{
+   SO_FLAG,           ///< Valid only in getsockopt(), For set flag of socket refer to <I>flag</I> in @ref socket().
+   SO_TTL,              ///< Set/Get TTL. @ref Sn_TTL  ( @ref setSn_TTL(), @ref getSn_TTL() )
+   SO_TOS,              ///< Set/Get TOS. @ref Sn_TOS  ( @ref setSn_TOS(), @ref getSn_TOS() )
+   SO_MSS,              ///< Set/Get MSS. @ref Sn_MSSR ( @ref setSn_MSSR(), @ref getSn_MSSR() )
+   SO_DESTIP,           ///< Set/Get the destination IP address. @ref Sn_DIPR ( @ref setSn_DIPR(), @ref getSn_DIPR() )
+   SO_DESTPORT,         ///< Set/Get the destionation Port number. @ref Sn_DPORT ( @ref setSn_DPORT(), @ref getSn_DPORT() )
+#if _WIZCHIP_ != 5100   
+   SO_KEEPALIVESEND,    ///< Valid only in setsockopt. Manually send keep-alive packet in TCP mode
+   #if _WIZCHIP_ > 5200   
+      SO_KEEPALIVEAUTO, ///< Set/Get keep-alive auto transmittion timer in TCP mode
+   #endif      
+#endif
+   SO_SENDBUF,          ///< Valid only in getsockopt. Get the free data size of Socekt TX buffer. @ref Sn_TX_FSR, @ref getSn_TX_FSR()
+   SO_RECVBUF,          ///< Valid only in getsockopt. Get the received data size in socket RX buffer. @ref Sn_RX_RSR, @ref getSn_RX_RSR()
+   SO_STATUS,           ///< Valid only in getsockopt. Get the socket status. @ref Sn_SR, @ref getSn_SR()
+   SO_REMAINSIZE,       ///< Valid only in getsockopt. Get the remained packet size in other then TCP mode.
+   SO_PACKINFO          ///< Valid only in getsockopt. Get the packet information as @ref PACK_FIRST, @ref PACK_REMAINED, and @ref PACK_COMPLETED in other then TCP mode.
+}sockopt_type;
+
+/**
+ * @ingroup WIZnet_socket_APIs
+ *  @brief Control socket.
+ *  @details Control IO mode, Interrupt & Mask of socket and get the socket buffer information.
+ *           Refer to @ref ctlsock_type.
+ *  @param sn socket number
+ *  @param cstype type of control socket. refer to @ref ctlsock_type.
+ *  @param arg Data type and value is determined according to @ref ctlsock_type. \n
+ *             <table>
+ *                  <tr> <td> @b cstype </td> <td> @b data type</td><td>@b value</td></tr>
+ *                  <tr> <td> @ref CS_SET_IOMODE \n @ref CS_GET_IOMODE </td> <td> uint8_t </td><td>@ref SOCK_IO_BLOCK @ref SOCK_IO_NONBLOCK</td></tr>
+ *                  <tr> <td> @ref CS_GET_MAXTXBUF \n @ref CS_GET_MAXRXBUF </td> <td> uint16_t </td><td> 0 ~ 16K </td></tr>
+ *                  <tr> <td> @ref CS_CLR_INTERRUPT \n @ref CS_GET_INTERRUPT \n @ref CS_SET_INTMASK \n @ref CS_GET_INTMASK </td> <td> @ref sockint_kind </td><td> @ref SIK_CONNECTED, etc.  </td></tr> 
+ *             </table>
+ *  @return @b Success @ref SOCK_OK \n
+ *          @b fail    @ref SOCKERR_ARG         - Invalid argument\n
+ */
+int8_t  wizchip_ctlsocket(uint8_t sn, ctlsock_type cstype, void* arg);
+
+/** 
+ * @ingroup WIZnet_socket_APIs
+ *  @brief set socket options
+ *  @details Set socket option like as TTL, MSS, TOS, and so on. Refer to @ref sockopt_type.
+ *               
+ *  @param sn socket number
+ *  @param sotype socket option type. refer to @ref sockopt_type
+ *  @param arg Data type and value is determined according to <I>sotype</I>. \n
+ *             <table>
+ *                  <tr> <td> @b sotype </td> <td> @b data type</td><td>@b value</td></tr> 
+ *                  <tr> <td> @ref SO_TTL </td> <td> uint8_t </td><td> 0 ~ 255 </td> </tr>
+ *                  <tr> <td> @ref SO_TOS </td> <td> uint8_t </td><td> 0 ~ 255 </td> </tr>
+ *                  <tr> <td> @ref SO_MSS </td> <td> uint16_t </td><td> 0 ~ 65535 </td> </tr>
+ *                  <tr> <td> @ref SO_DESTIP </td> <td> uint8_t[4] </td><td>  </td></tr> 
+ *                  <tr> <td> @ref SO_DESTPORT </td> <td> uint16_t </td><td> 0 ~ 65535 </td></tr> 
+ *                  <tr> <td> @ref SO_KEEPALIVESEND </td> <td> null </td><td> null </td></tr> 
+ *                  <tr> <td> @ref SO_KEEPALIVEAUTO </td> <td> uint8_t </td><td> 0 ~ 255 </td></tr> 
+ *             </table>
+ * @return 
+ * - @b Success : @ref SOCK_OK \n
+ * - @b Fail 
+ *  - @ref SOCKERR_SOCKNUM     - Invalid Socket number \n
+ *  - @ref SOCKERR_SOCKMODE    - Invalid socket mode \n
+ *  - @ref SOCKERR_SOCKOPT     - Invalid socket option or its value \n
+ *  - @ref SOCKERR_TIMEOUT     - Timeout occurred when sending keep-alive packet \n
+ */
+int8_t  wizchip_setsockopt(uint8_t sn, sockopt_type sotype, void* arg);
+
+/** 
+ * @ingroup WIZnet_socket_APIs
+ *  @brief get socket options
+ *  @details Get socket option like as FLAG, TTL, MSS, and so on. Refer to @ref sockopt_type
+ *  @param sn socket number
+ *  @param sotype socket option type. refer to @ref sockopt_type
+ *  @param arg Data type and value is determined according to <I>sotype</I>. \n
+ *             <table>
+ *                  <tr> <td> @b sotype </td> <td>@b data type</td><td>@b value</td></tr>
+ *                  <tr> <td> @ref SO_FLAG </td> <td> uint8_t </td><td> @ref SF_ETHER_OWN, etc... </td> </tr>
+ *                  <tr> <td> @ref SO_TOS </td> <td> uint8_t </td><td> 0 ~ 255 </td> </tr>
+ *                  <tr> <td> @ref SO_MSS </td> <td> uint16_t </td><td> 0 ~ 65535 </td> </tr>
+ *                  <tr> <td> @ref SO_DESTIP </td> <td> uint8_t[4] </td><td>  </td></tr> 
+ *                  <tr> <td> @ref SO_DESTPORT </td> <td> uint16_t </td><td>  </td></tr> 
+ *                  <tr> <td> @ref SO_KEEPALIVEAUTO </td> <td> uint8_t </td><td> 0 ~ 255 </td></tr> 
+ *                  <tr> <td> @ref SO_SENDBUF </td> <td> uint16_t </td><td> 0 ~ 65535 </td></tr>  
+ *                  <tr> <td> @ref SO_RECVBUF </td> <td> uint16_t </td><td> 0 ~ 65535 </td></tr>  
+ *                  <tr> <td> @ref SO_STATUS </td> <td> uint8_t </td><td> @ref SOCK_ESTABLISHED, etc.. </td></tr>  
+ *                  <tr> <td> @ref SO_REMAINSIZE </td> <td> uint16_t </td><td> 0~ 65535 </td></tr>
+ *                  <tr> <td> @ref SO_PACKINFO </td> <td> uint8_t </td><td> @ref PACK_FIRST, etc... </td></tr>
+ *             </table>
+ * @return 
+ * - @b Success : @ref SOCK_OK \n
+ * - @b Fail 
+ *  - @ref SOCKERR_SOCKNUM     - Invalid Socket number \n
+ *  - @ref SOCKERR_SOCKOPT     - Invalid socket option or its value \n
+ *  - @ref SOCKERR_SOCKMODE    - Invalid socket mode \n
+ * @note
+ *   The option as PACK_REMAINED and SO_PACKINFO is valid only in NON-TCP mode and after call @ref recvfrom(). \n
+ *   When SO_PACKINFO value is PACK_FIRST and the return value of recvfrom() is zero, 
+ *   This means the zero byte UDP data(UDP Header only) received.
+  */
+int8_t  wizchip_getsockopt(uint8_t sn, sockopt_type sotype, void* arg);
+
+#endif   // _SOCKET_H_

iolibrary/Internet/DHCP/dhcp.c

@@ -0,0 +1,980 @@
+//*****************************************************************************
+//
+//! \file dhcp.c
+//! \brief DHCP APIs implement file.
+//! \details Processig DHCP protocol as DISCOVER, OFFER, REQUEST, ACK, NACK and DECLINE.
+//! \version 1.1.0
+//! \date 2013/11/18
+//! \par  Revision history
+//!       <2013/11/18> 1st Release
+//!       <2012/12/20> V1.1.0
+//!         1. Optimize code
+//!         2. Add reg_dhcp_cbfunc()
+//!         3. Add DHCP_stop() 
+//!         4. Integrate check_DHCP_state() & DHCP_run() to DHCP_run()
+//!         5. Don't care system endian
+//!         6. Add comments
+//!       <2012/12/26> V1.1.1
+//!         1. Modify variable declaration: dhcp_tick_1s is declared volatile for code optimization
+//! \author Eric Jung & MidnightCow
+//! \copyright
+//!
+//! Copyright (c)  2013, WIZnet Co., LTD.
+//! All rights reserved.
+//! 
+//! Redistribution and use in source and binary forms, with or without 
+//! modification, are permitted provided that the following conditions 
+//! are met: 
+//! 
+//!     * Redistributions of source code must retain the above copyright 
+//! notice, this list of conditions and the following disclaimer. 
+//!     * Redistributions in binary form must reproduce the above copyright
+//! notice, this list of conditions and the following disclaimer in the
+//! documentation and/or other materials provided with the distribution. 
+//!     * Neither the name of the <ORGANIZATION> nor the names of its 
+//! contributors may be used to endorse or promote products derived 
+//! from this software without specific prior written permission. 
+//! 
+//! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! THE POSSIBILITY OF SUCH DAMAGE.
+//
+//*****************************************************************************
+
+#include <wizchip_socket.h>
+#include "DHCP/dhcp.h"
+
+/* If you want to display debug & procssing message, Define _DHCP_DEBUG_ in dhcp.h */
+
+#ifdef _DHCP_DEBUG_
+   #include <stdio.h>
+#endif   
+
+/* DHCP state machine. */
+#define STATE_DHCP_INIT          0        ///< Initialize
+#define STATE_DHCP_DISCOVER      1        ///< send DISCOVER and wait OFFER
+#define STATE_DHCP_REQUEST       2        ///< send REQEUST and wait ACK or NACK
+#define STATE_DHCP_LEASED        3        ///< ReceiveD ACK and IP leased
+#define STATE_DHCP_REREQUEST     4        ///< send REQUEST for maintaining leased IP
+#define STATE_DHCP_RELEASE       5        ///< No use
+#define STATE_DHCP_STOP          6        ///< Stop procssing DHCP
+
+#define DHCP_FLAGSBROADCAST      0x8000   ///< The broadcast value of flags in @ref RIP_MSG 
+#define DHCP_FLAGSUNICAST        0x0000   ///< The unicast   value of flags in @ref RIP_MSG
+
+/* DHCP message OP code */
+#define DHCP_BOOTREQUEST         1        ///< Request Message used in op of @ref RIP_MSG
+#define DHCP_BOOTREPLY           2        ///< Reply Message used i op of @ref RIP_MSG
+
+/* DHCP message type */
+#define DHCP_DISCOVER            1        ///< DISCOVER message in OPT of @ref RIP_MSG
+#define DHCP_OFFER               2        ///< OFFER message in OPT of @ref RIP_MSG
+#define DHCP_REQUEST             3        ///< REQUEST message in OPT of @ref RIP_MSG
+#define DHCP_DECLINE             4        ///< DECLINE message in OPT of @ref RIP_MSG
+#define DHCP_ACK                 5        ///< ACK message in OPT of @ref RIP_MSG
+#define DHCP_NAK                 6        ///< NACK message in OPT of @ref RIP_MSG
+#define DHCP_RELEASE             7        ///< RELEASE message in OPT of @ref RIP_MSG. No use
+#define DHCP_INFORM              8        ///< INFORM message in OPT of @ref RIP_MSG. No use
+
+#define DHCP_HTYPE10MB           1        ///< Used in type of @ref RIP_MSG
+#define DHCP_HTYPE100MB          2        ///< Used in type of @ref RIP_MSG
+
+#define DHCP_HLENETHERNET        6        ///< Used in hlen of @ref RIP_MSG
+#define DHCP_HOPS                0        ///< Used in hops of @ref RIP_MSG
+#define DHCP_SECS                0        ///< Used in secs of @ref RIP_MSG
+
+#define INFINITE_LEASETIME       0xffffffff	///< Infinite lease time
+
+#define OPT_SIZE                 312               /// Max OPT size of @ref RIP_MSG
+#define RIP_MSG_SIZE             (236+OPT_SIZE)    /// Max size of @ref RIP_MSG
+
+/* 
+ * @brief DHCP option and value (cf. RFC1533)
+ */
+enum
+{
+   padOption               = 0,
+   subnetMask              = 1,
+   timerOffset             = 2,
+   routersOnSubnet         = 3,
+   timeServer              = 4,
+   nameServer              = 5,
+   dns                     = 6,
+   logServer               = 7,
+   cookieServer            = 8,
+   lprServer               = 9,
+   impressServer           = 10,
+   resourceLocationServer	= 11,
+   hostName                = 12,
+   bootFileSize            = 13,
+   meritDumpFile           = 14,
+   domainName              = 15,
+   swapServer              = 16,
+   rootPath                = 17,
+   extentionsPath          = 18,
+   IPforwarding            = 19,
+   nonLocalSourceRouting   = 20,
+   policyFilter            = 21,
+   maxDgramReasmSize       = 22,
+   defaultIPTTL            = 23,
+   pathMTUagingTimeout     = 24,
+   pathMTUplateauTable     = 25,
+   ifMTU                   = 26,
+   allSubnetsLocal         = 27,
+   broadcastAddr           = 28,
+   performMaskDiscovery    = 29,
+   maskSupplier            = 30,
+   performRouterDiscovery  = 31,
+   routerSolicitationAddr  = 32,
+   staticRoute             = 33,
+   trailerEncapsulation    = 34,
+   arpCacheTimeout         = 35,
+   ethernetEncapsulation   = 36,
+   tcpDefaultTTL           = 37,
+   tcpKeepaliveInterval    = 38,
+   tcpKeepaliveGarbage     = 39,
+   nisDomainName           = 40,
+   nisServers              = 41,
+   ntpServers              = 42,
+   vendorSpecificInfo      = 43,
+   netBIOSnameServer       = 44,
+   netBIOSdgramDistServer	= 45,
+   netBIOSnodeType         = 46,
+   netBIOSscope            = 47,
+   xFontServer             = 48,
+   xDisplayManager         = 49,
+   dhcpRequestedIPaddr     = 50,
+   dhcpIPaddrLeaseTime     = 51,
+   dhcpOptionOverload      = 52,
+   dhcpMessageType         = 53,
+   dhcpServerIdentifier    = 54,
+   dhcpParamRequest        = 55,
+   dhcpMsg                 = 56,
+   dhcpMaxMsgSize          = 57,
+   dhcpT1value             = 58,
+   dhcpT2value             = 59,
+   dhcpClassIdentifier     = 60,
+   dhcpClientIdentifier    = 61,
+   endOption               = 255
+};
+
+/*
+ * @brief DHCP message format
+ */ 
+typedef struct {
+	uint8_t  op;            ///< @ref DHCP_BOOTREQUEST or @ref DHCP_BOOTREPLY
+	uint8_t  htype;         ///< @ref DHCP_HTYPE10MB or @ref DHCP_HTYPE100MB
+	uint8_t  hlen;          ///< @ref DHCP_HLENETHERNET
+	uint8_t  hops;          ///< @ref DHCP_HOPS
+	uint32_t xid;           ///< @ref DHCP_XID  This increase one every DHCP transaction.
+	uint16_t secs;          ///< @ref DHCP_SECS
+	uint16_t flags;         ///< @ref DHCP_FLAGSBROADCAST or @ref DHCP_FLAGSUNICAST
+	uint8_t  ciaddr[4];     ///< @ref Request IP to DHCP sever
+	uint8_t  yiaddr[4];     ///< @ref Offered IP from DHCP server
+	uint8_t  siaddr[4];     ///< No use 
+	uint8_t  giaddr[4];     ///< No use
+	uint8_t  chaddr[16];    ///< DHCP client 6bytes MAC address. Others is filled to zero
+	uint8_t  sname[64];     ///< No use
+	uint8_t  file[128];     ///< No use
+	uint8_t  OPT[OPT_SIZE]; ///< Option
+} RIP_MSG;
+
+
+
+uint8_t DHCP_SOCKET;                      // Socket number for DHCP
+
+uint8_t DHCP_SIP[4];                      // DHCP Server IP address
+
+// Network information from DHCP Server
+uint8_t OLD_allocated_ip[4]   = {0, };    // Previous IP address
+uint8_t DHCP_allocated_ip[4]  = {0, };    // IP address from DHCP
+uint8_t DHCP_allocated_gw[4]  = {0, };    // Gateway address from DHCP
+uint8_t DHCP_allocated_sn[4]  = {0, };    // Subnet mask from DHCP
+uint8_t DHCP_allocated_dns[4] = {0, };    // DNS address from DHCP
+
+
+int8_t   dhcp_state        = STATE_DHCP_INIT;   // DHCP state
+int8_t   dhcp_retry_count  = 0;                 
+
+uint32_t dhcp_lease_time   			= INFINITE_LEASETIME;
+volatile uint32_t dhcp_tick_1s      = 0;                 // unit 1 second
+uint32_t dhcp_tick_next    			= DHCP_WAIT_TIME ;
+
+uint32_t DHCP_XID;      // Any number
+
+RIP_MSG* pDHCPMSG;      // Buffer pointer for DHCP processing
+
+uint8_t HOST_NAME[] = DCHP_HOST_NAME;  
+
+uint8_t DHCP_CHADDR[6]; // DHCP Client MAC address.
+
+/* The default callback function */
+void default_ip_assign(void);
+void default_ip_update(void);
+void default_ip_conflict(void);
+
+/* Callback handler */
+void (*dhcp_ip_assign)(void)   = default_ip_assign;     /* handler to be called when the IP address from DHCP server is first assigned */
+void (*dhcp_ip_update)(void)   = default_ip_update;     /* handler to be called when the IP address from DHCP server is updated */
+void (*dhcp_ip_conflict)(void) = default_ip_conflict;   /* handler to be called when the IP address from DHCP server is conflict */
+
+void reg_dhcp_cbfunc(void(*ip_assign)(void), void(*ip_update)(void), void(*ip_conflict)(void));
+
+
+/* send DISCOVER message to DHCP server */
+void     send_DHCP_DISCOVER(void);
+
+/* send REQEUST message to DHCP server */
+void     send_DHCP_REQUEST(void);
+
+/* send DECLINE message to DHCP server */
+void     send_DHCP_DECLINE(void);
+
+/* IP conflict check by sending ARP-request to leased IP and wait ARP-response. */
+int8_t   check_DHCP_leasedIP(void);
+
+/* check the timeout in DHCP process */
+uint8_t  check_DHCP_timeout(void);
+
+/* Intialize to timeout process.  */
+void     reset_DHCP_timeout(void);
+
+/* Parse message as OFFER and ACK and NACK from DHCP server.*/
+int8_t   parseDHCPCMSG(void);
+
+/* The default handler of ip assign first */
+void default_ip_assign(void)
+{
+   setSIPR(DHCP_allocated_ip);
+   setSUBR(DHCP_allocated_sn);
+   setGAR (DHCP_allocated_gw);
+}
+
+/* The default handler of ip chaged */
+void default_ip_update(void)
+{
+	/* WIZchip Software Reset */
+   setMR(MR_RST);
+   getMR(); // for delay
+   default_ip_assign();
+   setSHAR(DHCP_CHADDR);
+}
+
+/* The default handler of ip chaged */
+void default_ip_conflict(void)
+{
+	// WIZchip Software Reset
+	setMR(MR_RST);
+	getMR(); // for delay
+	setSHAR(DHCP_CHADDR);
+}
+
+/* register the call back func. */
+void reg_dhcp_cbfunc(void(*ip_assign)(void), void(*ip_update)(void), void(*ip_conflict)(void))
+{
+   dhcp_ip_assign   = default_ip_assign;
+   dhcp_ip_update   = default_ip_update;
+   dhcp_ip_conflict = default_ip_conflict;
+   if(ip_assign)   dhcp_ip_assign = ip_assign;
+   if(ip_update)   dhcp_ip_update = ip_update;
+   if(ip_conflict) dhcp_ip_conflict = ip_conflict;
+}
+
+/* make the common DHCP message */
+void makeDHCPMSG(void)
+{
+   uint8_t  bk_mac[6];
+   uint8_t* ptmp;
+   uint8_t  i;
+   getSHAR(bk_mac);
+	pDHCPMSG->op      = DHCP_BOOTREQUEST;
+	pDHCPMSG->htype   = DHCP_HTYPE10MB;
+	pDHCPMSG->hlen    = DHCP_HLENETHERNET;
+	pDHCPMSG->hops    = DHCP_HOPS;
+	ptmp              = (uint8_t*)(&pDHCPMSG->xid);
+	*(ptmp+0)         = (uint8_t)((DHCP_XID & 0xFF000000) >> 24);
+	*(ptmp+1)         = (uint8_t)((DHCP_XID & 0x00FF0000) >> 16);
+   *(ptmp+2)         = (uint8_t)((DHCP_XID & 0x0000FF00) >>  8);
+	*(ptmp+3)         = (uint8_t)((DHCP_XID & 0x000000FF) >>  0);   
+	pDHCPMSG->secs    = DHCP_SECS;
+	ptmp              = (uint8_t*)(&pDHCPMSG->flags);	
+	*(ptmp+0)         = (uint8_t)((DHCP_FLAGSBROADCAST & 0xFF00) >> 8);
+	*(ptmp+1)         = (uint8_t)((DHCP_FLAGSBROADCAST & 0x00FF) >> 0);
+
+	pDHCPMSG->ciaddr[0] = 0;
+	pDHCPMSG->ciaddr[1] = 0;
+	pDHCPMSG->ciaddr[2] = 0;
+	pDHCPMSG->ciaddr[3] = 0;
+
+	pDHCPMSG->yiaddr[0] = 0;
+	pDHCPMSG->yiaddr[1] = 0;
+	pDHCPMSG->yiaddr[2] = 0;
+	pDHCPMSG->yiaddr[3] = 0;
+
+	pDHCPMSG->siaddr[0] = 0;
+	pDHCPMSG->siaddr[1] = 0;
+	pDHCPMSG->siaddr[2] = 0;
+	pDHCPMSG->siaddr[3] = 0;
+
+	pDHCPMSG->giaddr[0] = 0;
+	pDHCPMSG->giaddr[1] = 0;
+	pDHCPMSG->giaddr[2] = 0;
+	pDHCPMSG->giaddr[3] = 0;
+
+	pDHCPMSG->chaddr[0] = DHCP_CHADDR[0];
+	pDHCPMSG->chaddr[1] = DHCP_CHADDR[1];
+	pDHCPMSG->chaddr[2] = DHCP_CHADDR[2];
+	pDHCPMSG->chaddr[3] = DHCP_CHADDR[3];
+	pDHCPMSG->chaddr[4] = DHCP_CHADDR[4];
+	pDHCPMSG->chaddr[5] = DHCP_CHADDR[5];
+
+	for (i = 6; i < 16; i++)  pDHCPMSG->chaddr[i] = 0;
+	for (i = 0; i < 64; i++)  pDHCPMSG->sname[i]  = 0;
+	for (i = 0; i < 128; i++) pDHCPMSG->file[i]   = 0;
+
+	// MAGIC_COOKIE
+	pDHCPMSG->OPT[0] = (uint8_t)((MAGIC_COOKIE & 0xFF000000) >> 24);
+	pDHCPMSG->OPT[1] = (uint8_t)((MAGIC_COOKIE & 0x00FF0000) >> 16);
+	pDHCPMSG->OPT[2] = (uint8_t)((MAGIC_COOKIE & 0x0000FF00) >>  8);
+	pDHCPMSG->OPT[3] = (uint8_t) (MAGIC_COOKIE & 0x000000FF) >>  0;
+}
+
+/* SEND DHCP DISCOVER */
+void send_DHCP_DISCOVER(void)
+{
+	uint16_t i;
+	uint8_t ip[4];
+	uint16_t k = 0;
+   
+   makeDHCPMSG();
+
+   k = 4;     // beacaue MAGIC_COOKIE already made by makeDHCPMSG()
+   
+	// Option Request Param
+	pDHCPMSG->OPT[k++] = dhcpMessageType;
+	pDHCPMSG->OPT[k++] = 0x01;
+	pDHCPMSG->OPT[k++] = DHCP_DISCOVER;
+	
+	// Client identifier
+	pDHCPMSG->OPT[k++] = dhcpClientIdentifier;
+	pDHCPMSG->OPT[k++] = 0x07;
+	pDHCPMSG->OPT[k++] = 0x01;
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[0];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[1];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[2];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[3];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[4];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[5];
+	
+	// host name
+	pDHCPMSG->OPT[k++] = hostName;
+	pDHCPMSG->OPT[k++] = 0;          // fill zero length of hostname 
+	for(i = 0 ; HOST_NAME[i] != 0; i++)
+   	pDHCPMSG->OPT[k++] = HOST_NAME[i];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[3];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[4];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[5];
+	pDHCPMSG->OPT[k - (i+3+1)] = i+3; // length of hostname
+
+	pDHCPMSG->OPT[k++] = dhcpParamRequest;
+	pDHCPMSG->OPT[k++] = 0x06;	// length of request
+	pDHCPMSG->OPT[k++] = subnetMask;
+	pDHCPMSG->OPT[k++] = routersOnSubnet;
+	pDHCPMSG->OPT[k++] = dns;
+	pDHCPMSG->OPT[k++] = domainName;
+	pDHCPMSG->OPT[k++] = dhcpT1value;
+	pDHCPMSG->OPT[k++] = dhcpT2value;
+	pDHCPMSG->OPT[k++] = endOption;
+
+	for (i = k; i < OPT_SIZE; i++) pDHCPMSG->OPT[i] = 0;
+
+	// send broadcasting packet
+	ip[0] = 255;
+	ip[1] = 255;
+	ip[2] = 255;
+	ip[3] = 255;
+
+#ifdef _DHCP_DEBUG_
+	printf("> Send DHCP_DISCOVER\r\n");
+#endif
+
+	wizchip_sendto(DHCP_SOCKET, (uint8_t *)pDHCPMSG, RIP_MSG_SIZE, ip, DHCP_SERVER_PORT);
+}
+
+/* SEND DHCP REQUEST */
+void send_DHCP_REQUEST(void)
+{
+	int i;
+	uint8_t ip[4];
+	uint16_t k = 0;
+
+   makeDHCPMSG();
+
+   if(dhcp_state == STATE_DHCP_LEASED || dhcp_state == STATE_DHCP_REREQUEST)
+   {
+   	*((uint8_t*)(&pDHCPMSG->flags))   = ((DHCP_FLAGSUNICAST & 0xFF00)>> 8);
+   	*((uint8_t*)(&pDHCPMSG->flags)+1) = (DHCP_FLAGSUNICAST & 0x00FF);
+   	pDHCPMSG->ciaddr[0] = DHCP_allocated_ip[0];
+   	pDHCPMSG->ciaddr[1] = DHCP_allocated_ip[1];
+   	pDHCPMSG->ciaddr[2] = DHCP_allocated_ip[2];
+   	pDHCPMSG->ciaddr[3] = DHCP_allocated_ip[3];
+   	ip[0] = DHCP_SIP[0];
+   	ip[1] = DHCP_SIP[1];
+   	ip[2] = DHCP_SIP[2];
+   	ip[3] = DHCP_SIP[3];   	   	   	
+   }
+   else
+   {
+   	ip[0] = 255;
+   	ip[1] = 255;
+   	ip[2] = 255;
+   	ip[3] = 255;   	   	   	
+   }
+   
+   k = 4;      // beacaue MAGIC_COOKIE already made by makeDHCPMSG()
+	
+	// Option Request Param.
+	pDHCPMSG->OPT[k++] = dhcpMessageType;
+	pDHCPMSG->OPT[k++] = 0x01;
+	pDHCPMSG->OPT[k++] = DHCP_REQUEST;
+
+	pDHCPMSG->OPT[k++] = dhcpClientIdentifier;
+	pDHCPMSG->OPT[k++] = 0x07;
+	pDHCPMSG->OPT[k++] = 0x01;
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[0];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[1];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[2];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[3];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[4];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[5];
+
+   if(ip[3] == 255)  // if(dchp_state == STATE_DHCP_LEASED || dchp_state == DHCP_REREQUEST_STATE)
+   {
+		pDHCPMSG->OPT[k++] = dhcpRequestedIPaddr;
+		pDHCPMSG->OPT[k++] = 0x04;
+		pDHCPMSG->OPT[k++] = DHCP_allocated_ip[0];
+		pDHCPMSG->OPT[k++] = DHCP_allocated_ip[1];
+		pDHCPMSG->OPT[k++] = DHCP_allocated_ip[2];
+		pDHCPMSG->OPT[k++] = DHCP_allocated_ip[3];
+	
+		pDHCPMSG->OPT[k++] = dhcpServerIdentifier;
+		pDHCPMSG->OPT[k++] = 0x04;
+		pDHCPMSG->OPT[k++] = DHCP_SIP[0];
+		pDHCPMSG->OPT[k++] = DHCP_SIP[1];
+		pDHCPMSG->OPT[k++] = DHCP_SIP[2];
+		pDHCPMSG->OPT[k++] = DHCP_SIP[3];
+	}
+
+	// host name
+	pDHCPMSG->OPT[k++] = hostName;
+	pDHCPMSG->OPT[k++] = 0; // length of hostname
+	for(i = 0 ; HOST_NAME[i] != 0; i++)
+   	pDHCPMSG->OPT[k++] = HOST_NAME[i];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[3];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[4];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[5];
+	pDHCPMSG->OPT[k - (i+3+1)] = i+3; // length of hostname
+	
+	pDHCPMSG->OPT[k++] = dhcpParamRequest;
+	pDHCPMSG->OPT[k++] = 0x08;
+	pDHCPMSG->OPT[k++] = subnetMask;
+	pDHCPMSG->OPT[k++] = routersOnSubnet;
+	pDHCPMSG->OPT[k++] = dns;
+	pDHCPMSG->OPT[k++] = domainName;
+	pDHCPMSG->OPT[k++] = dhcpT1value;
+	pDHCPMSG->OPT[k++] = dhcpT2value;
+	pDHCPMSG->OPT[k++] = performRouterDiscovery;
+	pDHCPMSG->OPT[k++] = staticRoute;
+	pDHCPMSG->OPT[k++] = endOption;
+
+	for (i = k; i < OPT_SIZE; i++) pDHCPMSG->OPT[i] = 0;
+
+#ifdef _DHCP_DEBUG_
+	printf("> Send DHCP_REQUEST\r\n");
+#endif
+	
+	wizchip_sendto(DHCP_SOCKET, (uint8_t *)pDHCPMSG, RIP_MSG_SIZE, ip, DHCP_SERVER_PORT);
+
+}
+
+/* SEND DHCP DHCPDECLINE */
+void send_DHCP_DECLINE(void)
+{
+	int i;
+	uint8_t ip[4];
+	uint16_t k = 0;
+	
+	makeDHCPMSG();
+
+   k = 4;      // beacaue MAGIC_COOKIE already made by makeDHCPMSG()
+   
+	*((uint8_t*)(&pDHCPMSG->flags))   = ((DHCP_FLAGSUNICAST & 0xFF00)>> 8);
+	*((uint8_t*)(&pDHCPMSG->flags)+1) = (DHCP_FLAGSUNICAST & 0x00FF);
+
+	// Option Request Param.
+	pDHCPMSG->OPT[k++] = dhcpMessageType;
+	pDHCPMSG->OPT[k++] = 0x01;
+	pDHCPMSG->OPT[k++] = DHCP_DECLINE;
+
+	pDHCPMSG->OPT[k++] = dhcpClientIdentifier;
+	pDHCPMSG->OPT[k++] = 0x07;
+	pDHCPMSG->OPT[k++] = 0x01;
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[0];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[1];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[2];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[3];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[4];
+	pDHCPMSG->OPT[k++] = DHCP_CHADDR[5];
+
+	pDHCPMSG->OPT[k++] = dhcpRequestedIPaddr;
+	pDHCPMSG->OPT[k++] = 0x04;
+	pDHCPMSG->OPT[k++] = DHCP_allocated_ip[0];
+	pDHCPMSG->OPT[k++] = DHCP_allocated_ip[1];
+	pDHCPMSG->OPT[k++] = DHCP_allocated_ip[2];
+	pDHCPMSG->OPT[k++] = DHCP_allocated_ip[3];
+
+	pDHCPMSG->OPT[k++] = dhcpServerIdentifier;
+	pDHCPMSG->OPT[k++] = 0x04;
+	pDHCPMSG->OPT[k++] = DHCP_SIP[0];
+	pDHCPMSG->OPT[k++] = DHCP_SIP[1];
+	pDHCPMSG->OPT[k++] = DHCP_SIP[2];
+	pDHCPMSG->OPT[k++] = DHCP_SIP[3];
+
+	pDHCPMSG->OPT[k++] = endOption;
+
+	for (i = k; i < OPT_SIZE; i++) pDHCPMSG->OPT[i] = 0;
+
+	//send broadcasting packet
+	ip[0] = 0xFF;
+	ip[1] = 0xFF;
+	ip[2] = 0xFF;
+	ip[3] = 0xFF;
+
+#ifdef _DHCP_DEBUG_
+	printf("\r\n> Send DHCP_DECLINE\r\n");
+#endif
+
+	wizchip_sendto(DHCP_SOCKET, (uint8_t *)pDHCPMSG, RIP_MSG_SIZE, ip, DHCP_SERVER_PORT);
+}
+
+/* PARSE REPLY pDHCPMSG */
+int8_t parseDHCPMSG(void)
+{
+	uint8_t svr_addr[6];
+	uint16_t  svr_port;
+	uint16_t len;
+
+	uint8_t * p;
+	uint8_t * e;
+	uint8_t type;
+	uint8_t opt_len;
+   
+   if((len = getSn_RX_RSR(DHCP_SOCKET)) > 0)
+   {
+   	len = wizchip_recvfrom(DHCP_SOCKET, (uint8_t *)pDHCPMSG, len, svr_addr, &svr_port);
+   #ifdef _DHCP_DEBUG_   
+      printf("DHCP message : %d.%d.%d.%d(%d) %d received. \r\n",svr_addr[0],svr_addr[1],svr_addr[2], svr_addr[3],svr_port, len);
+   #endif   
+   }
+   else
+   {
+       return 0;
+   }
+
+	if (svr_port == DHCP_SERVER_PORT) {
+      // compare mac address
+		if ( (pDHCPMSG->chaddr[0] != DHCP_CHADDR[0]) || (pDHCPMSG->chaddr[1] != DHCP_CHADDR[1]) ||
+		     (pDHCPMSG->chaddr[2] != DHCP_CHADDR[2]) || (pDHCPMSG->chaddr[3] != DHCP_CHADDR[3]) ||
+		     (pDHCPMSG->chaddr[4] != DHCP_CHADDR[4]) || (pDHCPMSG->chaddr[5] != DHCP_CHADDR[5])   )
+         return 0;
+      type = 0;
+		p = (uint8_t *)(&pDHCPMSG->op);
+		p = p + 240;      // 240 = sizeof(RIP_MSG) + MAGIC_COOKIE size in RIP_MSG.opt - sizeof(RIP_MSG.opt)
+		e = p + (len - 240);
+
+		while ( p < e ) {
+
+			switch ( *p ) {
+
+   			case endOption :
+   			   p = e;   // for break while(p < e)
+   				break;
+            case padOption :
+   				p++;
+   				break;
+   			case dhcpMessageType :
+   				p++;
+   				p++;
+   				type = *p++;
+   				break;
+   			case subnetMask :
+   				p++;
+   				p++;
+   				DHCP_allocated_sn[0] = *p++;
+   				DHCP_allocated_sn[1] = *p++;
+   				DHCP_allocated_sn[2] = *p++;
+   				DHCP_allocated_sn[3] = *p++;
+   				break;
+   			case routersOnSubnet :
+   				p++;
+   				opt_len = *p++;       
+   				DHCP_allocated_gw[0] = *p++;
+   				DHCP_allocated_gw[1] = *p++;
+   				DHCP_allocated_gw[2] = *p++;
+   				DHCP_allocated_gw[3] = *p++;
+   				p = p + (opt_len - 4);
+   				break;
+   			case dns :
+   				p++;                  
+   				opt_len = *p++;       
+   				DHCP_allocated_dns[0] = *p++;
+   				DHCP_allocated_dns[1] = *p++;
+   				DHCP_allocated_dns[2] = *p++;
+   				DHCP_allocated_dns[3] = *p++;
+   				p = p + (opt_len - 4);
+   				break;
+   			case dhcpIPaddrLeaseTime :
+   				p++;
+   				opt_len = *p++;
+   				dhcp_lease_time  = *p++;
+   				dhcp_lease_time  = (dhcp_lease_time << 8) + *p++;
+   				dhcp_lease_time  = (dhcp_lease_time << 8) + *p++;
+   				dhcp_lease_time  = (dhcp_lease_time << 8) + *p++;
+            #ifdef _DHCP_DEBUG_  
+               dhcp_lease_time = 10;
+ 				#endif
+   				break;
+   			case dhcpServerIdentifier :
+   				p++;
+   				opt_len = *p++;
+   				DHCP_SIP[0] = *p++;
+   				DHCP_SIP[1] = *p++;
+   				DHCP_SIP[2] = *p++;
+   				DHCP_SIP[3] = *p++;
+   				break;
+   			default :
+   				p++;
+   				opt_len = *p++;
+   				p += opt_len;
+   				break;
+			} // switch
+		} // while
+	} // if
+	return	type;
+}
+
+uint8_t DHCP_run(void)
+{
+	uint8_t  type;
+	uint8_t  ret;
+
+	if(dhcp_state == STATE_DHCP_STOP) return DHCP_STOPPED;
+
+	if(getSn_SR(DHCP_SOCKET) != SOCK_UDP)
+	   wizchip_socket(DHCP_SOCKET, Sn_MR_UDP, DHCP_CLIENT_PORT, 0x00);
+
+	ret = DHCP_RUNNING;
+	type = parseDHCPMSG();
+
+	switch ( dhcp_state ) {
+	   case STATE_DHCP_INIT     :
+         DHCP_allocated_ip[0] = 0;
+         DHCP_allocated_ip[1] = 0;
+         DHCP_allocated_ip[2] = 0;
+         DHCP_allocated_ip[3] = 0;
+   		send_DHCP_DISCOVER();
+   		dhcp_state = STATE_DHCP_DISCOVER;
+   		break;
+		case STATE_DHCP_DISCOVER :
+			if (type == DHCP_OFFER){
+#ifdef _DHCP_DEBUG_
+				printf("> Receive DHCP_OFFER\r\n");
+#endif
+            DHCP_allocated_ip[0] = pDHCPMSG->yiaddr[0];
+            DHCP_allocated_ip[1] = pDHCPMSG->yiaddr[1];
+            DHCP_allocated_ip[2] = pDHCPMSG->yiaddr[2];
+            DHCP_allocated_ip[3] = pDHCPMSG->yiaddr[3];
+
+				send_DHCP_REQUEST();
+				dhcp_state = STATE_DHCP_REQUEST;
+			} else ret = check_DHCP_timeout();
+         break;
+
+		case STATE_DHCP_REQUEST :
+			if (type == DHCP_ACK) {
+
+#ifdef _DHCP_DEBUG_
+				printf("> Receive DHCP_ACK\r\n");
+#endif
+				if (check_DHCP_leasedIP()) {
+					// Network info assignment from DHCP
+					dhcp_ip_assign();
+					reset_DHCP_timeout();
+
+					dhcp_state = STATE_DHCP_LEASED;
+				} else {
+					// IP address conflict occurred
+					reset_DHCP_timeout();
+					dhcp_ip_conflict();
+				    dhcp_state = STATE_DHCP_INIT;
+				}
+			} else if (type == DHCP_NAK) {
+
+#ifdef _DHCP_DEBUG_
+				printf("> Receive DHCP_NACK\r\n");
+#endif
+
+				reset_DHCP_timeout();
+
+				dhcp_state = STATE_DHCP_DISCOVER;
+			} else ret = check_DHCP_timeout();
+		break;
+
+		case STATE_DHCP_LEASED :
+		   ret = DHCP_IP_LEASED;
+			if ((dhcp_lease_time != INFINITE_LEASETIME) && ((dhcp_lease_time/2) < dhcp_tick_1s)) {
+				
+#ifdef _DHCP_DEBUG_
+ 				printf("> Maintains the IP address \r\n");
+#endif
+
+				type = 0;
+				OLD_allocated_ip[0] = DHCP_allocated_ip[0];
+				OLD_allocated_ip[1] = DHCP_allocated_ip[1];
+				OLD_allocated_ip[2] = DHCP_allocated_ip[2];
+				OLD_allocated_ip[3] = DHCP_allocated_ip[3];
+				
+				DHCP_XID++;
+
+				send_DHCP_REQUEST();
+
+				reset_DHCP_timeout();
+
+				dhcp_state = STATE_DHCP_REREQUEST;
+			}
+		break;
+
+		case STATE_DHCP_REREQUEST :
+		   ret = DHCP_IP_LEASED;
+			if (type == DHCP_ACK) {
+				dhcp_retry_count = 0;
+				if (OLD_allocated_ip[0] != DHCP_allocated_ip[0] || 
+				    OLD_allocated_ip[1] != DHCP_allocated_ip[1] ||
+				    OLD_allocated_ip[2] != DHCP_allocated_ip[2] ||
+				    OLD_allocated_ip[3] != DHCP_allocated_ip[3]) 
+				{
+					ret = DHCP_IP_CHANGED;
+					dhcp_ip_update();
+               #ifdef _DHCP_DEBUG_
+                  printf(">IP changed.\r\n");
+               #endif
+					
+				}
+         #ifdef _DHCP_DEBUG_
+            else printf(">IP is continued.\r\n");
+         #endif            				
+				reset_DHCP_timeout();
+				dhcp_state = STATE_DHCP_LEASED;
+			} else if (type == DHCP_NAK) {
+
+#ifdef _DHCP_DEBUG_
+				printf("> Receive DHCP_NACK, Failed to maintain ip\r\n");
+#endif
+
+				reset_DHCP_timeout();
+
+				dhcp_state = STATE_DHCP_DISCOVER;
+			} else ret = check_DHCP_timeout();
+	   	break;
+		default :
+   		break;
+	}
+
+	return ret;
+}
+
+void    DHCP_stop(void)
+{
+   wizchip_close(DHCP_SOCKET);
+   dhcp_state = STATE_DHCP_STOP;
+}
+
+uint8_t check_DHCP_timeout(void)
+{
+	uint8_t ret = DHCP_RUNNING;
+	
+	if (dhcp_retry_count < MAX_DHCP_RETRY) {
+		if (dhcp_tick_next < dhcp_tick_1s) {
+
+			switch ( dhcp_state ) {
+				case STATE_DHCP_DISCOVER :
+//					printf("<<timeout>> state : STATE_DHCP_DISCOVER\r\n");
+					send_DHCP_DISCOVER();
+				break;
+		
+				case STATE_DHCP_REQUEST :
+//					printf("<<timeout>> state : STATE_DHCP_REQUEST\r\n");
+
+					send_DHCP_REQUEST();
+				break;
+
+				case STATE_DHCP_REREQUEST :
+//					printf("<<timeout>> state : STATE_DHCP_REREQUEST\r\n");
+					
+					send_DHCP_REQUEST();
+				break;
+		
+				default :
+				break;
+			}
+
+			dhcp_tick_1s = 0;
+			dhcp_tick_next = dhcp_tick_1s + DHCP_WAIT_TIME;
+			dhcp_retry_count++;
+		}
+	} else { // timeout occurred
+
+		switch(dhcp_state) {
+			case STATE_DHCP_DISCOVER:
+				dhcp_state = STATE_DHCP_INIT;
+				ret = DHCP_FAILED;
+				break;
+			case STATE_DHCP_REQUEST:
+			case STATE_DHCP_REREQUEST:
+				send_DHCP_DISCOVER();
+				dhcp_state = STATE_DHCP_DISCOVER;
+				break;
+			default :
+				break;
+		}
+		reset_DHCP_timeout();
+	}
+	return ret;
+}
+
+int8_t check_DHCP_leasedIP(void)
+{
+	uint8_t tmp;
+	int32_t ret;
+
+	//WIZchip RCR value changed for ARP Timeout count control
+	tmp = getRCR();
+	setRCR(0x03);
+
+	// IP conflict detection : ARP request - ARP reply
+	// Broadcasting ARP Request for check the IP conflict using UDP sendto() function
+	ret = wizchip_sendto(DHCP_SOCKET, (uint8_t *)"CHECK_IP_CONFLICT", 17, DHCP_allocated_ip, 5000);
+
+	// RCR value restore
+	setRCR(tmp);
+
+	if(ret == SOCKERR_TIMEOUT) {
+		// UDP send Timeout occurred : allocated IP address is unique, DHCP Success
+
+#ifdef _DHCP_DEBUG_
+		printf("\r\n> Check leased IP - OK\r\n");
+#endif
+
+		return 1;
+	} else {
+		// Received ARP reply or etc : IP address conflict occur, DHCP Failed
+		send_DHCP_DECLINE();
+
+		ret = dhcp_tick_1s;
+		while((dhcp_tick_1s - ret) < 2) ;   // wait for 1s over; wait to complete to send DECLINE message;
+
+		return 0;
+	}
+}	
+
+void DHCP_init(uint8_t s, uint8_t * buf)
+{
+   uint8_t zeroip[4] = {0,0,0,0};
+   getSHAR(DHCP_CHADDR);
+   if((DHCP_CHADDR[0] | DHCP_CHADDR[1]  | DHCP_CHADDR[2] | DHCP_CHADDR[3] | DHCP_CHADDR[4] | DHCP_CHADDR[5]) == 0x00)
+   {
+      // assing temporary mac address, you should be set SHAR before call this function. 
+      DHCP_CHADDR[0] = 0x00;
+      DHCP_CHADDR[1] = 0x08;
+      DHCP_CHADDR[2] = 0xdc;      
+      DHCP_CHADDR[3] = 0x00;
+      DHCP_CHADDR[4] = 0x00;
+      DHCP_CHADDR[5] = 0x00; 
+      setSHAR(DHCP_CHADDR);     
+   }
+
+	DHCP_SOCKET = s; // SOCK_DHCP
+	pDHCPMSG = (RIP_MSG*)buf;
+	DHCP_XID = 0x12345678;
+
+	// WIZchip Netinfo Clear
+	setSIPR(zeroip);
+	setSIPR(zeroip);
+	setGAR(zeroip);
+
+	reset_DHCP_timeout();
+	dhcp_state = STATE_DHCP_INIT;
+}
+
+
+/* Rset the DHCP timeout count and retry count. */
+void reset_DHCP_timeout(void)
+{
+	dhcp_tick_1s = 0;
+	dhcp_tick_next = DHCP_WAIT_TIME;
+	dhcp_retry_count = 0;
+}
+
+void DHCP_time_handler(void)
+{
+	dhcp_tick_1s++;
+}
+
+void getIPfromDHCP(uint8_t* ip)
+{
+	ip[0] = DHCP_allocated_ip[0];
+	ip[1] = DHCP_allocated_ip[1];
+	ip[2] = DHCP_allocated_ip[2];	
+	ip[3] = DHCP_allocated_ip[3];
+}
+
+void getGWfromDHCP(uint8_t* ip)
+{
+	ip[0] =DHCP_allocated_gw[0];
+	ip[1] =DHCP_allocated_gw[1];
+	ip[2] =DHCP_allocated_gw[2];
+	ip[3] =DHCP_allocated_gw[3];			
+}
+
+void getSNfromDHCP(uint8_t* ip)
+{
+   ip[0] = DHCP_allocated_sn[0];
+   ip[1] = DHCP_allocated_sn[1];
+   ip[2] = DHCP_allocated_sn[2];
+   ip[3] = DHCP_allocated_sn[3];         
+}
+
+void getDNSfromDHCP(uint8_t* ip)
+{
+   ip[0] = DHCP_allocated_dns[0];
+   ip[1] = DHCP_allocated_dns[1];
+   ip[2] = DHCP_allocated_dns[2];
+   ip[3] = DHCP_allocated_dns[3];         
+}
+
+uint32_t getDHCPLeasetime(void)
+{
+	return dhcp_lease_time;
+}
+
+
+
+

iolibrary/Internet/DHCP/dhcp.h

@@ -0,0 +1,152 @@
+//*****************************************************************************
+//
+//! \file dhcp.h
+//! \brief DHCP APIs Header file.
+//! \details Processig DHCP protocol as DISCOVER, OFFER, REQUEST, ACK, NACK and DECLINE.
+//! \version 1.1.0
+//! \date 2013/11/18
+//! \par  Revision history
+//!       <2013/11/18> 1st Release
+//!       <2012/12/20> V1.1.0
+//!         1. Move unreferenced DEFINE to dhcp.c
+//!       <2012/12/26> V1.1.1
+//! \author Eric Jung & MidnightCow
+//! \copyright
+//!
+//! Copyright (c)  2013, WIZnet Co., LTD.
+//! All rights reserved.
+//! 
+//! Redistribution and use in source and binary forms, with or without 
+//! modification, are permitted provided that the following conditions 
+//! are met: 
+//! 
+//!     * Redistributions of source code must retain the above copyright 
+//! notice, this list of conditions and the following disclaimer. 
+//!     * Redistributions in binary form must reproduce the above copyright
+//! notice, this list of conditions and the following disclaimer in the
+//! documentation and/or other materials provided with the distribution. 
+//!     * Neither the name of the <ORGANIZATION> nor the names of its 
+//! contributors may be used to endorse or promote products derived 
+//! from this software without specific prior written permission. 
+//! 
+//! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! THE POSSIBILITY OF SUCH DAMAGE.
+//
+//*****************************************************************************
+#ifndef _DHCP_H_
+#define _DHCP_H_
+
+/*
+ * @brief 
+ * @details If you want to display debug & procssing message, Define _DHCP_DEBUG_ 
+ * @note    If defined, it dependens on <stdio.h>
+ */
+//#define _DHCP_DEBUG_
+
+
+/* Retry to processing DHCP */
+#define	MAX_DHCP_RETRY          2        ///< Maxium retry count
+#define	DHCP_WAIT_TIME          10       ///< Wait Time 10s
+
+
+/* UDP port numbers for DHCP */
+#define DHCP_SERVER_PORT      	67	      ///< DHCP server port number
+#define DHCP_CLIENT_PORT         68	      ///< DHCP client port number
+
+
+#define MAGIC_COOKIE             0x63825363  ///< Any number. You can be modifyed it any number
+
+#define DCHP_HOST_NAME           "WIZnet\0"
+
+/* 
+ * @brief return value of @ref DHCP_run()
+ */
+enum
+{
+   DHCP_FAILED = 0,  ///< Procssing Fail
+   DHCP_RUNNING,     ///< Procssing DHCP proctocol
+   DHCP_IP_ASSIGN,   ///< First Occupy IP from DHPC server      (if cbfunc == null, act as default default_ip_assign)
+   DHCP_IP_CHANGED,  ///< Change IP address by new ip from DHCP (if cbfunc == null, act as default default_ip_update)
+   DHCP_IP_LEASED,   ///< Stand by 
+   DHCP_STOPPED      ///< Stop procssing DHCP protocol
+};
+
+/*
+ * @brief DHCP client initialization (outside of the main loop)
+ * @param s   - socket number
+ * @param buf - buffer for procssing DHCP message
+ */
+void DHCP_init(uint8_t s, uint8_t * buf);
+
+/*
+ * @brief DHCP 1s Tick Timer handler
+ * @note SHOULD BE register to your system 1s Tick timer handler 
+ */
+void DHCP_time_handler(void);
+
+/* 
+ * @brief Register call back function 
+ * @param ip_assign   - callback func when IP is assigned from DHCP server first
+ * @param ip_update   - callback func when IP is changed
+ * @prarm ip_conflict - callback func when the assigned IP is conflict with others.
+ */
+void reg_dhcp_cbfunc(void(*ip_assign)(void), void(*ip_update)(void), void(*ip_conflict)(void));
+
+/*
+ * @brief DHCP client in the main loop
+ * @return    The value is as the follow \n
+ *            @ref DHCP_FAILED     \n
+ *            @ref DHCP_RUNNING    \n
+ *            @ref DHCP_IP_ASSIGN  \n
+ *            @ref DHCP_IP_CHANGED \n
+ * 			  @ref DHCP_IP_LEASED  \n
+ *            @ref DHCP_STOPPED    \n
+ *
+ * @note This function is always called by you main task.
+ */ 
+uint8_t DHCP_run(void);
+
+/*
+ * @brief Stop DHCP procssing
+ * @note If you want to restart. call DHCP_init() and DHCP_run()
+ */ 
+void    DHCP_stop(void);
+
+/* Get Network information assigned from DHCP server */
+/*
+ * @brief Get IP address
+ * @param ip  - IP address to be returned
+ */
+void getIPfromDHCP(uint8_t* ip);
+/*
+ * @brief Get Gateway address
+ * @param ip  - Gateway address to be returned
+ */
+void getGWfromDHCP(uint8_t* ip);
+/*
+ * @brief Get Subnet mask value
+ * @param ip  - Subnet mask to be returned
+ */
+void getSNfromDHCP(uint8_t* ip);
+/*
+ * @brief Get DNS address
+ * @param ip  - DNS address to be returned
+ */
+void getDNSfromDHCP(uint8_t* ip);
+
+/*
+ * @brief Get the leased time by DHCP sever
+ * @retrun unit 1s
+ */
+uint32_t getDHCPLeasetime(void);
+
+#endif	/* _DHCP_H_ */

iolibrary/Internet/DNS/dns.c

@@ -0,0 +1,564 @@
+//*****************************************************************************
+//
+//! \file dns.c
+//! \brief DNS APIs Implement file.
+//! \details Send DNS query & Receive DNS reponse.  \n
+//!          It depends on stdlib.h & string.h in ansi-c library
+//! \version 1.1.0
+//! \date 2013/11/18
+//! \par  Revision history
+//!       <2013/10/21> 1st Release
+//!       <2013/12/20> V1.1.0
+//!         1. Remove secondary DNS server in DNS_run
+//!            If 1st DNS_run failed, call DNS_run with 2nd DNS again
+//!         2. DNS_timerHandler -> DNS_time_handler
+//!         3. Remove the unused define
+//!         4. Integrated dns.h dns.c & dns_parse.h dns_parse.c into dns.h & dns.c
+//!       <2013/12/20> V1.1.0
+//!
+//! \author Eric Jung & MidnightCow
+//! \copyright
+//!
+//! Copyright (c)  2013, WIZnet Co., LTD.
+//! All rights reserved.
+//! 
+//! Redistribution and use in source and binary forms, with or without 
+//! modification, are permitted provided that the following conditions 
+//! are met: 
+//! 
+//!     * Redistributions of source code must retain the above copyright 
+//! notice, this list of conditions and the following disclaimer. 
+//!     * Redistributions in binary form must reproduce the above copyright
+//! notice, this list of conditions and the following disclaimer in the
+//! documentation and/or other materials provided with the distribution. 
+//!     * Neither the name of the <ORGANIZATION> nor the names of its 
+//! contributors may be used to endorse or promote products derived 
+//! from this software without specific prior written permission. 
+//! 
+//! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! THE POSSIBILITY OF SUCH DAMAGE.
+//
+//*****************************************************************************
+
+#include <string.h>
+#include <stdlib.h>
+#include <wizchip_socket.h>
+
+#include "DNS/dns.h"
+
+#ifdef _DNS_DEBUG_
+   #include <stdio.h>
+#endif
+
+#define	INITRTT		2000L	/* Initial smoothed response time */
+//#define	MAXCNAME	   (MAX_DOMAIN_NAME + (MAX_DOMAIN_NAME>>1))	   /* Maximum amount of cname recursion */
+#define	MAXCNAME	1024	   /* Maximum amount of cname recursion */
+
+#define	TYPE_A		1	   /* Host address */
+#define	TYPE_NS		2	   /* Name server */
+#define	TYPE_MD		3	   /* Mail destination (obsolete) */
+#define	TYPE_MF		4	   /* Mail forwarder (obsolete) */
+#define	TYPE_CNAME	5	   /* Canonical name */
+#define	TYPE_SOA	   6	   /* Start of Authority */
+#define	TYPE_MB		7	   /* Mailbox name (experimental) */
+#define	TYPE_MG		8	   /* Mail group member (experimental) */
+#define	TYPE_MR		9	   /* Mail rename name (experimental) */
+#define	TYPE_NULL	10	   /* Null (experimental) */
+#define	TYPE_WKS	   11	   /* Well-known sockets */
+#define	TYPE_PTR	   12	   /* Pointer record */
+#define	TYPE_HINFO	13	   /* Host information */
+#define	TYPE_MINFO	14	   /* Mailbox information (experimental)*/
+#define	TYPE_MX		15	   /* Mail exchanger */
+#define	TYPE_TXT	   16	   /* Text strings */
+#define	TYPE_ANY	   255	/* Matches any type */
+
+#define	CLASS_IN	   1	   /* The ARPA Internet */
+
+/* Round trip timing parameters */
+#define	AGAIN	      8     /* Average RTT gain = 1/8 */
+#define	LAGAIN      3     /* Log2(AGAIN) */
+#define	DGAIN       4     /* Mean deviation gain = 1/4 */
+#define	LDGAIN      2     /* log2(DGAIN) */
+
+/* Header for all domain messages */
+struct dhdr
+{
+	uint16_t id;   /* Identification */
+	uint8_t	qr;      /* Query/Response */
+#define	QUERY    0
+#define	RESPONSE 1
+	uint8_t	opcode;
+#define	IQUERY   1
+	uint8_t	aa;      /* Authoratative answer */
+	uint8_t	tc;      /* Truncation */
+	uint8_t	rd;      /* Recursion desired */
+	uint8_t	ra;      /* Recursion available */
+	uint8_t	rcode;   /* Response code */
+#define	NO_ERROR       0
+#define	FORMAT_ERROR   1
+#define	SERVER_FAIL    2
+#define	NAME_ERROR     3
+#define	NOT_IMPL       4
+#define	REFUSED        5
+	uint16_t qdcount;	/* Question count */
+	uint16_t ancount;	/* Answer count */
+	uint16_t nscount;	/* Authority (name server) count */
+	uint16_t arcount;	/* Additional record count */
+};
+
+
+uint8_t* pDNSMSG;       // DNS message buffer
+uint8_t  DNS_SOCKET;    // SOCKET number for DNS
+uint16_t DNS_MSGID;     // DNS message ID
+
+uint32_t dns_1s_tick;   // for timout of DNS processing
+
+/* converts uint16_t from network buffer to a host byte order integer. */
+uint16_t get16(uint8_t * s)
+{
+	uint16_t i;
+	i = *s++ << 8;
+	i = i + *s;
+	return i;
+}
+
+/* copies uint16_t to the network buffer with network byte order. */
+uint8_t * put16(uint8_t * s, uint16_t i)
+{
+	*s++ = i >> 8;
+	*s++ = i;
+	return s;
+}
+
+
+/*
+ *              CONVERT A DOMAIN NAME TO THE HUMAN-READABLE FORM
+ *
+ * Description : This function converts a compressed domain name to the human-readable form
+ * Arguments   : msg        - is a pointer to the reply message
+ *               compressed - is a pointer to the domain name in reply message.
+ *               buf        - is a pointer to the buffer for the human-readable form name.
+ *               len        - is the MAX. size of buffer.
+ * Returns     : the length of compressed message
+ */
+int parse_name(uint8_t * msg, uint8_t * compressed, char * buf, int16_t len)
+{
+	uint16_t slen;		/* Length of current segment */
+	uint8_t * cp;
+	int clen = 0;		/* Total length of compressed name */
+	int indirect = 0;	/* Set if indirection encountered */
+	int nseg = 0;		/* Total number of segments in name */
+
+	cp = compressed;
+
+	for (;;)
+	{
+		slen = *cp++;	/* Length of this segment */
+
+		if (!indirect) clen++;
+
+		if ((slen & 0xc0) == 0xc0)
+		{
+			if (!indirect)
+				clen++;
+			indirect = 1;
+			/* Follow indirection */
+			cp = &msg[((slen & 0x3f)<<8) + *cp];
+			slen = *cp++;
+		}
+
+		if (slen == 0)	/* zero length == all done */
+			break;
+
+		len -= slen + 1;
+
+		if (len < 0) return -1;
+
+		if (!indirect) clen += slen;
+
+		while (slen-- != 0) *buf++ = (char)*cp++;
+		*buf++ = '.';
+		nseg++;
+	}
+
+	if (nseg == 0)
+	{
+		/* Root name; represent as single dot */
+		*buf++ = '.';
+		len--;
+	}
+
+	*buf++ = '\0';
+	len--;
+
+	return clen;	/* Length of compressed message */
+}
+
+/*
+ *              PARSE QUESTION SECTION
+ *
+ * Description : This function parses the qeustion record of the reply message.
+ * Arguments   : msg - is a pointer to the reply message
+ *               cp  - is a pointer to the qeustion record.
+ * Returns     : a pointer the to next record.
+ */
+uint8_t * dns_question(uint8_t * msg, uint8_t * cp)
+{
+	int len;
+	char name[MAXCNAME];
+
+	len = parse_name(msg, cp, name, MAXCNAME);
+
+
+	if (len == -1) return 0;
+
+	cp += len;
+	cp += 2;		/* type */
+	cp += 2;		/* class */
+
+	return cp;
+}
+
+
+/*
+ *              PARSE ANSER SECTION
+ *
+ * Description : This function parses the answer record of the reply message.
+ * Arguments   : msg - is a pointer to the reply message
+ *               cp  - is a pointer to the answer record.
+ * Returns     : a pointer the to next record.
+ */
+uint8_t * dns_answer(uint8_t * msg, uint8_t * cp, uint8_t * ip_from_dns)
+{
+	int len, type;
+	char name[MAXCNAME];
+
+	len = parse_name(msg, cp, name, MAXCNAME);
+
+	if (len == -1) return 0;
+
+	cp += len;
+	type = get16(cp);
+	cp += 2;		/* type */
+	cp += 2;		/* class */
+	cp += 4;		/* ttl */
+	cp += 2;		/* len */
+
+
+	switch (type)
+	{
+	case TYPE_A:
+		/* Just read the address directly into the structure */
+		ip_from_dns[0] = *cp++;
+		ip_from_dns[1] = *cp++;
+		ip_from_dns[2] = *cp++;
+		ip_from_dns[3] = *cp++;
+		break;
+	case TYPE_CNAME:
+	case TYPE_MB:
+	case TYPE_MG:
+	case TYPE_MR:
+	case TYPE_NS:
+	case TYPE_PTR:
+		/* These types all consist of a single domain name */
+		/* convert it to ascii format */
+		len = parse_name(msg, cp, name, MAXCNAME);
+		if (len == -1) return 0;
+
+		cp += len;
+		break;
+	case TYPE_HINFO:
+		len = *cp++;
+		cp += len;
+
+		len = *cp++;
+		cp += len;
+		break;
+	case TYPE_MX:
+		cp += 2;
+		/* Get domain name of exchanger */
+		len = parse_name(msg, cp, name, MAXCNAME);
+		if (len == -1) return 0;
+
+		cp += len;
+		break;
+	case TYPE_SOA:
+		/* Get domain name of name server */
+		len = parse_name(msg, cp, name, MAXCNAME);
+		if (len == -1) return 0;
+
+		cp += len;
+
+		/* Get domain name of responsible person */
+		len = parse_name(msg, cp, name, MAXCNAME);
+		if (len == -1) return 0;
+
+		cp += len;
+
+		cp += 4;
+		cp += 4;
+		cp += 4;
+		cp += 4;
+		cp += 4;
+		break;
+	case TYPE_TXT:
+		/* Just stash */
+		break;
+	default:
+		/* Ignore */
+		break;
+	}
+
+	return cp;
+}
+
+/*
+ *              PARSE THE DNS REPLY
+ *
+ * Description : This function parses the reply message from DNS server.
+ * Arguments   : dhdr - is a pointer to the header for DNS message
+ *               buf  - is a pointer to the reply message.
+ *               len  - is the size of reply message.
+ * Returns     : -1 - Domain name lenght is too big 
+ *                0 - Fail (Timout or parse error)
+ *                1 - Success, 
+ */
+int8_t parseDNSMSG(struct dhdr * pdhdr, uint8_t * pbuf, uint8_t * ip_from_dns)
+{
+	uint16_t tmp;
+	uint16_t i;
+	uint8_t * msg;
+	uint8_t * cp;
+
+	msg = pbuf;
+	memset(pdhdr, 0, sizeof(pdhdr));
+
+	pdhdr->id = get16(&msg[0]);
+	tmp = get16(&msg[2]);
+	if (tmp & 0x8000) pdhdr->qr = 1;
+
+	pdhdr->opcode = (tmp >> 11) & 0xf;
+
+	if (tmp & 0x0400) pdhdr->aa = 1;
+	if (tmp & 0x0200) pdhdr->tc = 1;
+	if (tmp & 0x0100) pdhdr->rd = 1;
+	if (tmp & 0x0080) pdhdr->ra = 1;
+
+	pdhdr->rcode = tmp & 0xf;
+	pdhdr->qdcount = get16(&msg[4]);
+	pdhdr->ancount = get16(&msg[6]);
+	pdhdr->nscount = get16(&msg[8]);
+	pdhdr->arcount = get16(&msg[10]);
+
+
+	/* Now parse the variable length sections */
+	cp = &msg[12];
+
+	/* Question section */
+	for (i = 0; i < pdhdr->qdcount; i++)
+	{
+		cp = dns_question(msg, cp);
+   #ifdef _DNS_DEUBG_
+      printf("MAX_DOMAIN_NAME is too small, it should be redfine in dns.h"
+   #endif
+		if(!cp) return -1;
+	}
+
+	/* Answer section */
+	for (i = 0; i < pdhdr->ancount; i++)
+	{
+		cp = dns_answer(msg, cp, ip_from_dns);
+   #ifdef _DNS_DEUBG_
+      printf("MAX_DOMAIN_NAME is too small, it should be redfine in dns.h"
+   #endif
+		if(!cp) return -1;
+	}
+
+	/* Name server (authority) section */
+	for (i = 0; i < pdhdr->nscount; i++)
+	{
+		;
+	}
+
+	/* Additional section */
+	for (i = 0; i < pdhdr->arcount; i++)
+	{
+		;
+	}
+
+	if(pdhdr->rcode == 0) return 1;		// No error
+	else return 0;
+}
+
+
+/*
+ *              MAKE DNS QUERY MESSAGE
+ *
+ * Description : This function makes DNS query message.
+ * Arguments   : op   - Recursion desired
+ *               name - is a pointer to the domain name.
+ *               buf  - is a pointer to the buffer for DNS message.
+ *               len  - is the MAX. size of buffer.
+ * Returns     : the pointer to the DNS message.
+ */
+int16_t dns_makequery(uint16_t op, char * name, uint8_t * buf, uint16_t len)
+{
+	uint8_t *cp;
+	char *cp1;
+	char sname[MAXCNAME];
+	char *dname;
+	uint16_t p;
+	uint16_t dlen;
+
+	cp = buf;
+
+	DNS_MSGID++;
+	cp = put16(cp, DNS_MSGID);
+	p = (op << 11) | 0x0100;			/* Recursion desired */
+	cp = put16(cp, p);
+	cp = put16(cp, 1);
+	cp = put16(cp, 0);
+	cp = put16(cp, 0);
+	cp = put16(cp, 0);
+
+	strcpy(sname, name);
+	dname = sname;
+	dlen = strlen(dname);
+	for (;;)
+	{
+		/* Look for next dot */
+		cp1 = strchr(dname, '.');
+
+		if (cp1 != NULL) len = cp1 - dname;	/* More to come */
+		else len = dlen;			/* Last component */
+
+		*cp++ = len;				/* Write length of component */
+		if (len == 0) break;
+
+		/* Copy component up to (but not including) dot */
+		strncpy((char *)cp, dname, len);
+		cp += len;
+		if (cp1 == NULL)
+		{
+			*cp++ = 0;			/* Last one; write null and finish */
+			break;
+		}
+		dname += len+1;
+		dlen -= len+1;
+	}
+
+	cp = put16(cp, 0x0001);				/* type */
+	cp = put16(cp, 0x0001);				/* class */
+
+	return ((int16_t)((uint32_t)(cp) - (uint32_t)(buf)));
+}
+
+/*
+ *              CHECK DNS TIMEOUT
+ *
+ * Description : This function check the DNS timeout
+ * Arguments   : None.
+ * Returns     : -1 - timeout occurred, 0 - timer over, but no timeout, 1 - no timer over, no timeout occur
+ * Note        : timeout : retry count and timer both over.
+ */
+
+int8_t check_DNS_timeout(void)
+{
+	static uint8_t retry_count;
+
+	if(dns_1s_tick >= DNS_WAIT_TIME)
+	{
+		dns_1s_tick = 0;
+		if(retry_count >= MAX_DNS_RETRY) {
+			retry_count = 0;
+			return -1; // timeout occurred
+		}
+		retry_count++;
+		return 0; // timer over, but no timeout
+	}
+
+	return 1; // no timer over, no timeout occur
+}
+
+
+
+/* DNS CLIENT INIT */
+void DNS_init(uint8_t s, uint8_t * buf)
+{
+	DNS_SOCKET = s; // SOCK_DNS
+	pDNSMSG = buf; // User's shared buffer
+	DNS_MSGID = DNS_MSG_ID;
+}
+
+/* DNS CLIENT RUN */
+int8_t DNS_run(uint8_t * dns_ip, uint8_t * name, uint8_t * ip_from_dns)
+{
+	int8_t ret;
+	struct dhdr dhp;
+	uint8_t ip[4];
+	uint16_t len, port;
+	int8_t ret_check_timeout;
+   
+   // Socket open
+   wizchip_socket(DNS_SOCKET, Sn_MR_UDP, 0, 0);
+
+#ifdef _DNS_DEBUG_
+	printf("> DNS Query to DNS Server : %d.%d.%d.%d\r\n", dns_ip[0], dns_ip[1], dns_ip[2], dns_ip[3]);
+#endif
+   
+	len = dns_makequery(0, (char *)name, pDNSMSG, MAX_DNS_BUF_SIZE);
+	wizchip_sendto(DNS_SOCKET, pDNSMSG, len, dns_ip, IPPORT_DOMAIN);
+
+	while (1)
+	{
+		if ((len = getSn_RX_RSR(DNS_SOCKET)) > 0)
+		{
+			if (len > MAX_DNS_BUF_SIZE) len = MAX_DNS_BUF_SIZE;
+			len = wizchip_recvfrom(DNS_SOCKET, pDNSMSG, len, ip, &port);
+      #ifdef _DNS_DEBUG_
+	      printf("> Receive DNS message from %d.%d.%d.%d(%d). len = %d\r\n", ip[0], ip[1], ip[2], ip[3],port,len);
+      #endif
+         ret = parseDNSMSG(&dhp, pDNSMSG, ip_from_dns);
+			break;
+		}
+		// Check Timeout
+		ret_check_timeout = check_DNS_timeout();
+		if (ret_check_timeout < 0) {
+
+#ifdef _DNS_DEBUG_
+			printf("> DNS Server is not responding : %d.%d.%d.%d\r\n", dns_ip[0], dns_ip[1], dns_ip[2], dns_ip[3]);
+#endif
+			return 0; // timeout occurred
+		}
+		else if (ret_check_timeout == 0) {
+
+#ifdef _DNS_DEBUG_
+			printf("> DNS Timeout\r\n");
+#endif
+			wizchip_sendto(DNS_SOCKET, pDNSMSG, len, dns_ip, IPPORT_DOMAIN);
+		}
+	}
+	wizchip_close(DNS_SOCKET);
+	// Return value
+	// 0 > :  failed / 1 - success
+	return ret;
+}
+
+
+/* DNS TIMER HANDLER */
+void DNS_time_handler(void)
+{
+	dns_1s_tick++;
+}
+
+
+

iolibrary/Internet/DNS/dns.h

@@ -0,0 +1,101 @@
+//*****************************************************************************
+//
+//! \file dns.h
+//! \brief DNS APIs Header file.
+//! \details Send DNS query & Receive DNS reponse. 
+//! \version 1.1.0
+//! \date 2013/11/18
+//! \par  Revision history
+//!       <2013/10/21> 1st Release
+//!       <2013/12/20> V1.1.0
+//!         1. Remove secondary DNS server in DNS_run
+//!            If 1st DNS_run failed, call DNS_run with 2nd DNS again
+//!         2. DNS_timerHandler -> DNS_time_handler
+//!         3. Move the no reference define to dns.c
+//!         4. Integrated dns.h dns.c & dns_parse.h dns_parse.c into dns.h & dns.c
+//!       <2013/12/20> V1.1.0
+//!
+//! \author Eric Jung & MidnightCow
+//! \copyright
+//!
+//! Copyright (c)  2013, WIZnet Co., LTD.
+//! All rights reserved.
+//! 
+//! Redistribution and use in source and binary forms, with or without 
+//! modification, are permitted provided that the following conditions 
+//! are met: 
+//! 
+//!     * Redistributions of source code must retain the above copyright 
+//! notice, this list of conditions and the following disclaimer. 
+//!     * Redistributions in binary form must reproduce the above copyright
+//! notice, this list of conditions and the following disclaimer in the
+//! documentation and/or other materials provided with the distribution. 
+//!     * Neither the name of the <ORGANIZATION> nor the names of its 
+//! contributors may be used to endorse or promote products derived 
+//! from this software without specific prior written permission. 
+//! 
+//! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! THE POSSIBILITY OF SUCH DAMAGE.
+//
+//*****************************************************************************
+
+#ifndef	_DNS_H_
+#define	_DNS_H_
+
+#include <stdint.h>
+/*
+ * @brief Define it for Debug & Monitor DNS processing.
+ * @note If defined, it dependens on <stdio.h>
+ */
+//#define _DNS_DEBUG_
+
+#define	MAX_DNS_BUF_SIZE	512		///< maximum size of DNS buffer. */
+/*
+ * @brief Maxium length of your queried Domain name 
+ * @todo SHOULD BE defined it equal as or greater than your Domain name lenght + null character(1)
+ * @note SHOULD BE careful to stack overflow because it is allocated 1.5 times as MAX_DOMAIN_NAME in stack.
+ */
+#define  MAX_DOMAIN_NAME   16       // for example "www.google.com"
+
+#define	MAX_DNS_RETRY     2        ///< Requery Count
+#define	DNS_WAIT_TIME     3        ///< Wait response time. unit 1s.
+
+#define	IPPORT_DOMAIN     53       ///< DNS server port number
+
+#define DNS_MSG_ID         0x1122   ///< ID for DNS message. You can be modifyed it any number
+/*
+ * @brief DNS process initialize
+ * @param s   : Socket number for DNS
+ * @param buf : Buffer for DNS message
+ */
+void DNS_init(uint8_t s, uint8_t * buf);
+
+/*
+ * @brief DNS process
+ * @details Send DNS query and receive DNS response
+ * @param dns_ip        : DNS server ip
+ * @param name          : Domain name to be queryed
+ * @param ip_from_dns   : IP address from DNS server
+ * @return  -1 : failed. @ref MAX_DOMIN_NAME is too small \n
+ *           0 : failed  (Timeout or Parse error)\n
+ *           1 : success
+ * @note This funtion blocks until success or fail. max time = @ref MAX_DNS_RETRY * @ref DNS_WAIT_TIME
+ */
+int8_t DNS_run(uint8_t * dns_ip, uint8_t * name, uint8_t * ip_from_dns);
+
+/*
+ * @brief DNS 1s Tick Timer handler
+ * @note SHOULD BE register to your system 1s Tick timer handler 
+ */
+void DNS_time_handler(void);
+
+#endif	/* _DNS_H_ */

src/wiz.c

@@ -0,0 +1,488 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-09-26     chenyong     first version
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <wiz.h>
+#include <wiz_socket.h>
+
+#include <W5500/w5500.h>
+#include <DNS/dns.h>
+#ifdef WIZ_USING_DHCP
+#include <DHCP/dhcp.h>
+#endif
+
+#if !defined(WIZ_SPI_DEVICE) || !defined(WIZ_RST_PIN) || !defined(WIZ_IRQ_PIN)
+#error "please config SPI device name, reset pin and irq pin in menuconfig."
+#endif
+
+#define DBG_ENABLE
+#define DBG_SECTION_NAME               "wiz"
+#ifdef WIZ_DEBUG
+#define DBG_LEVEL                      DBG_LOG
+#else
+#define DBG_LEVEL                      DBG_INFO
+#endif /* WIZ_DEBUG */
+#define DBG_COLOR
+#include <rtdbg.h>
+
+#define IMR_SENDOK                     0x10
+#define IMR_TIMEOUT                    0x08
+#define IMR_RECV                       0x04
+#define IMR_DISCON                     0x02
+#define IMR_CON                        0x01
+#define WIZ_DEFAULT_MAC                "44:39:c4:7f:e0:59"
+
+extern struct rt_spi_device *wiz_device;
+extern int wiz_device_init(const char *spi_dev_name, rt_base_t rst_pin, rt_base_t isr_pin);
+
+rt_bool_t wiz_init_status = RT_FALSE;
+static wiz_NetInfo wiz_net_info;
+
+static void _delay_us(uint32_t us)
+{
+    volatile uint32_t len;
+    for (; us > 0; us --)
+    {
+        for (len = 0; len < 20; len++);
+    }
+}
+
+static void spi_write_byte(uint8_t data)
+{
+    struct rt_spi_message spi_msg;
+
+    rt_memset(&spi_msg, 0x00, sizeof(spi_msg));
+
+    spi_msg.send_buf = &data;
+    spi_msg.length = 1;
+
+    rt_spi_transfer_message(wiz_device, &spi_msg);
+}
+
+static uint8_t spi_read_byte(void)
+{
+    struct rt_spi_message spi_msg;
+    uint8_t data;
+
+    rt_memset(&spi_msg, 0x00, sizeof(spi_msg));
+
+    spi_msg.recv_buf = &data;
+    spi_msg.length = 1;
+
+    rt_spi_transfer_message(wiz_device, &spi_msg);
+
+    return data;
+}
+
+static void spi_cris_enter(void)
+{
+    rt_enter_critical();
+}
+
+static void spi_cris_exit(void)
+{
+    rt_exit_critical();
+}
+
+static void spi_cs_select(void)
+{
+    rt_spi_take(wiz_device);
+}
+
+static void spi_cs_deselect(void)
+{
+    rt_spi_release(wiz_device);
+}
+
+/* register TCP communication related callback function */
+static int wiz_callback_register(void)
+{
+    /* register critical section callback function */
+    reg_wizchip_cris_cbfunc(spi_cris_enter, spi_cris_exit);
+
+#if (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_SPI_VDM_) || (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_SPI_FDM_)
+    /* register SPI device CS select callback function */
+    reg_wizchip_cs_cbfunc(spi_cs_select, spi_cs_deselect);
+#else
+#if (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SIP_) != _WIZCHIP_IO_MODE_SIP_
+#error "Unknown _WIZCHIP_IO_MODE_"
+#else
+    reg_wizchip_cs_cbfunc(wizchip_select, wizchip_deselect);
+#endif
+#endif
+    /* register SPI device read/write one byte callback function */
+    reg_wizchip_spi_cbfunc(spi_read_byte, spi_write_byte);
+
+    return RT_EOK;
+}
+
+/* initialize WIZnet chip configures */
+static int wiz_chip_cfg_init(void)
+{
+#define    CW_INIT_MODE         2
+#define    CW_INIT_SOCKETS      8
+#define    CW_INIT_TIMEOUT      (5 * RT_TICK_PER_SECOND)
+
+    rt_tick_t start_tick, now_tick;
+    uint8_t phy_status;
+    uint8_t memsize[CW_INIT_MODE][CW_INIT_SOCKETS] = { 0 };
+
+    /* reset WIZnet chip internal PHY, configures PHY mode. */
+    if (ctlwizchip(CW_INIT_WIZCHIP, (void*) memsize) == -1)
+    {
+        rt_kprintf("WIZCHIP initialize failed.\n");
+        return -RT_ERROR;
+    }
+
+    start_tick = rt_tick_get();
+    do
+    {
+        now_tick = rt_tick_get();
+        if (now_tick - start_tick > CW_INIT_TIMEOUT)
+        {
+            LOG_E("WIZnet chip configure initialize timeout.");
+            return -RT_ETIMEOUT;
+        }
+
+        /* waiting for link status online */
+        if (ctlwizchip(CW_GET_PHYLINK, (void*) &phy_status) == -1)
+        {
+            rt_kprintf("Unknown PHY Link stauts.\n");
+        }
+
+        rt_thread_mdelay(100);
+    } while (phy_status == PHY_LINK_OFF);
+
+    return RT_EOK;
+}
+
+/* WIZnet chip hardware reset */
+static void wiz_reset(void)
+{
+    rt_pin_write(WIZ_IRQ_PIN, PIN_LOW);
+    _delay_us(50);
+
+    rt_pin_write(WIZ_IRQ_PIN, PIN_HIGH);
+    _delay_us(100);
+}
+
+#ifdef WIZ_USING_DHCP
+static void wiz_ip_assign(void)
+{
+    /* get the assigned IP address and reconfigure the IP address of the chip */
+    getIPfromDHCP(wiz_net_info.ip);
+    getGWfromDHCP(wiz_net_info.gw);
+    getSNfromDHCP(wiz_net_info.sn);
+    getDNSfromDHCP(wiz_net_info.dns);
+    wiz_net_info.dhcp = NETINFO_DHCP;
+
+    ctlnetwork(CN_SET_NETINFO, (void*) &wiz_net_info);
+//    LOG_D("DHCP LEASED TIME : %d Sec.", getDHCPLeasetime());
+}
+
+static void wiz_ip_conflict(void)
+{
+    /* deal with conflict IP for WIZnet DHCP  */
+    rt_kprintf("conflict IP from DHCP\r\n");
+    RT_ASSERT(0);
+}
+
+static int wiz_network_dhcp(void)
+{
+#define WIZ_DHCP_SOCKET      0
+#define WIZ_DHCP_TIMEOUT     (5 * RT_TICK_PER_SECOND)
+
+    rt_tick_t start_tick, now_tick;
+    uint8_t dhcp_status;
+    uint8_t data_buffer[1024];
+
+    /* set default MAC address for DHCP */
+    setSHAR(wiz_net_info.mac);
+    /* DHCP configure initialize, clear information other than MAC address */
+    setSn_RXBUF_SIZE(WIZ_DHCP_SOCKET, 0x02);
+    setSn_TXBUF_SIZE(WIZ_DHCP_SOCKET, 0x02);
+    DHCP_init(WIZ_DHCP_SOCKET, data_buffer);
+    /* register to assign IP address and conflict callback */
+    reg_dhcp_cbfunc(wiz_ip_assign, wiz_ip_assign, wiz_ip_conflict);
+
+    start_tick = rt_tick_get();
+    while (1)
+    {
+        /* check DHCP timeout */
+        now_tick = rt_tick_get();
+        if (now_tick - start_tick > WIZ_DHCP_TIMEOUT)
+        {
+            DHCP_stop();
+            return -RT_ETIMEOUT;
+        }
+
+        /* DHCP start, return DHCP_IP_LEASED is success. */
+        dhcp_status = DHCP_run();
+        switch (dhcp_status)
+        {
+        case DHCP_IP_ASSIGN:
+        case DHCP_IP_CHANGED:
+        {
+            // TODO: DHCP configure
+            break;
+        }
+        case DHCP_IP_LEASED:
+        {
+            DHCP_stop();
+            return RT_EOK;
+        }
+        case DHCP_FAILED:
+        {
+            DHCP_stop();
+            return -RT_ERROR;
+        }
+        default:
+            continue;
+        }
+
+        rt_thread_mdelay(100);
+    }
+}
+#endif /* WIZ_USING_DHCP */
+
+static int wiz_netstr_to_array(const char *net_str, uint8_t (*net_array)[])
+{
+    int ret = 0;
+
+    RT_ASSERT(net_str);
+    RT_ASSERT(net_array);
+
+    if(strstr(net_str, ":"))
+    {
+        ret = sscanf(net_str, "%02x:%02x:%02x:%02x:%02x:%02x", &(*net_array)[0], &(*net_array)[1], &(*net_array)[2],
+                &(*net_array)[3],  &(*net_array)[4],  &(*net_array)[5]);
+        if(ret != 6)
+        {
+            return -RT_ERROR;
+        }
+    }
+    else if (strstr(net_str, "."))
+    {
+        ret = sscanf(net_str, "%hh.%hh.%hh.%hh", &(*net_array)[0], &(*net_array)[1], &(*net_array)[2], &(*net_array)[3]);
+        if(ret != 4)
+        {
+            return -RT_ERROR;
+        }
+    }
+
+    return RT_EOK;
+}
+
+/* initialize WIZnet network configures */
+static int wiz_network_init(void)
+{
+#ifndef WIZ_USING_DHCP
+    if(wiz_netstr_to_array(WIZ_IPADDR, &(wiz_net_info.ip)) != RT_EOK ||
+            wiz_netstr_to_array(WIZ_MSKADDR, &(wiz_net_info.sn)) != RT_EOK ||
+                wiz_netstr_to_array(WIZ_GWADDR, &(wiz_net_info.gw)) != RT_EOK)
+    {
+        return -RT_ERROR;
+    }
+    wiz_net_info.dhcp = NETINFO_STATIC;
+#endif
+
+    /* set static WIZnet network information */
+    ctlnetwork(CN_SET_NETINFO, (void*) &wiz_net_info);
+    ctlnetwork(CN_GET_NETINFO, (void*) &wiz_net_info);
+
+#ifdef WIZ_USING_DHCP
+    /* alloc IP address through DHCP */
+    {
+        int result = RT_EOK;
+        result = wiz_network_dhcp();
+        if (result != RT_EOK)
+        {
+            LOG_E("WIZnet network initialize failed, DHCP timeout.");
+            return result;
+        }
+    }
+#endif
+
+    LOG_D("WIZnet network initialize success.");
+    return RT_EOK;
+}
+
+/* wizenet socket initialize */
+static int wiz_socket_init(void)
+{
+    int idx = 0;
+
+    /* socket(0-7) initialize */
+    setSIMR(0xff);
+
+    /* set socket receive/send buffer size */
+    for (idx = 0; idx < WIZ_SOCKETS_NUM; idx++)
+    {
+        setSn_RXBUF_SIZE(idx, 0x02);
+        setSn_TXBUF_SIZE(idx, 0x02);
+    }
+
+    /* set socket ISR state support */
+    for (idx = 0; idx < WIZ_SOCKETS_NUM; idx++)
+    {
+        setSn_IMR(idx, (IMR_TIMEOUT | IMR_RECV | IMR_DISCON));
+    }
+
+    return RT_EOK;
+}
+
+int wiz_ifconfig(void)
+{
+#define WIZ_ID_LEN           6
+#define WIZ_MAC_LEN          6
+
+    uint8_t interfacce[WIZ_ID_LEN];
+    wiz_NetInfo net_info;
+
+    ctlwizchip(CW_GET_ID, (void*) interfacce);
+    ctlnetwork(CN_GET_NETINFO, (void*) &net_info);
+
+    /* display network information */
+    {
+        uint8_t index = 0;
+
+        rt_kprintf("network interface: %s\n", interfacce);
+        rt_kprintf("MTU: %d\n", getSn_MSSR(0));
+        rt_kprintf("MAC: ");
+        for (index = 0; index < WIZ_MAC_LEN; index ++)
+        {
+            rt_kprintf("%02x ", net_info.mac[index]);
+        }
+        rt_kprintf("\n");
+
+        rt_kprintf("ip address: %d.%d.%d.%d\n", net_info.ip[0], net_info.ip[1],
+                net_info.ip[2], net_info.ip[3]);
+        rt_kprintf("gw address: %d.%d.%d.%d\n", net_info.gw[0], net_info.gw[1],
+                net_info.gw[2], net_info.gw[3]);
+        rt_kprintf("net mask  : %d.%d.%d.%d\n", net_info.sn[0], net_info.sn[1],
+                net_info.sn[2], net_info.sn[3]);
+        rt_kprintf("dns server : %d.%d.%d.%d\n", net_info.dns[0], net_info.dns[1],
+                net_info.dns[2], net_info.dns[3]);
+    }
+
+    return RT_EOK;
+}
+
+/* set WIZnet device MAC address */
+int wiz_set_mac(const char *mac)
+{
+    int result = RT_EOK;
+
+    RT_ASSERT(mac);
+
+    if (wiz_init_status == RT_FALSE)
+    {
+        result = wiz_netstr_to_array(mac, &(wiz_net_info.mac));
+        if (result != RT_EOK)
+        {
+            LOG_E("Input MAC address process failed.");
+            return result;
+        }
+    }
+    else
+    {
+        /* set default MAC address for DHCP */
+        setSHAR(wiz_net_info.mac);
+    }
+
+    return RT_EOK;
+}
+
+/* WIZnet initialize device and network */
+int wiz_init(void)
+{
+    int result = RT_EOK;
+
+    /* WIZnet SPI device and pin initialize */
+    result = wiz_device_init(WIZ_SPI_DEVICE, WIZ_RST_PIN, WIZ_IRQ_PIN);
+    if (result != RT_EOK)
+    {
+        LOG_E("WIZnet SPI or PIN device initialize failed.");
+        goto __exit;
+    }
+
+    /* WIZnet SPI device reset */
+    wiz_reset();
+    /* set WIZnet device read/write data callback */
+    wiz_callback_register();
+    /* WIZnet chip configure initialize */
+    result = wiz_chip_cfg_init();
+    if(result != RT_EOK)
+    {
+        goto __exit;
+    }
+    /* WIZnet network initialize */
+    result = wiz_network_init();
+    if (result != RT_EOK)
+    {
+        goto __exit;
+    }
+    /* WIZnet socket initialize */
+    wiz_socket_init();
+
+__exit:
+    if (result == RT_EOK)
+    {
+        wiz_init_status = RT_TRUE;
+        LOG_I("RT-Thread WIZnet package (V%s) initialize success.", WIZ_SW_VERSION);
+    }
+    else
+    {
+        LOG_E("RT-Thread WIZnet package (V%s) initialize failed.", WIZ_SW_VERSION);
+    }
+
+    return result;
+}
+
+int wiz_start(int argc, char **argv)
+{
+    int result = RT_EOK;
+
+    if (argc == 1)
+    {
+        result = wiz_set_mac(WIZ_DEFAULT_MAC);
+        if(result != RT_EOK)
+        {
+            return result;
+        }
+
+        wiz_init();
+    }
+    else if(argc == 2)
+    {
+        result = wiz_set_mac(argv[1]);
+        if(result != RT_EOK)
+        {
+            return result;
+        }
+
+        wiz_init();
+    }
+    else
+    {
+        rt_kprintf("wiz_start [mac]  -- WIZnet device network start.");
+        return -RT_ERROR;
+    }
+
+    return RT_EOK;
+}
+
+#ifdef FINSH_USING_MSH
+MSH_CMD_EXPORT(wiz_start, WIZnet device network start);
+MSH_CMD_EXPORT(wiz_ifconfig, WIZnet ifconfig);
+#endif

src/wiz_af_inet.c

@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-09-26     chenyong     first version
+ */
+
+#include <rtthread.h>
+#include <rthw.h>
+
+#include <netdb.h>
+#include <sal.h>
+
+#include <wiz.h>
+#include <wiz_socket.h>
+
+#ifdef SAL_USING_POSIX
+#include <dfs_poll.h>
+#endif
+
+#ifdef SAL_USING_POSIX
+static int wiz_poll(struct dfs_fd *file, struct rt_pollreq *req)
+{
+    int mask = 0;
+    struct wiz_socket *sock;
+    struct sal_socket *sal_sock;
+
+    sal_sock = sal_get_socket((int) file->data);
+    if(!sal_sock)
+    {
+        return -1;
+    }
+
+    sock = wiz_get_socket((int)sal_sock->user_data);
+    if (sock != NULL)
+    {
+        rt_base_t level;
+
+        rt_poll_add(&sock->wait_head, req);
+
+        level = rt_hw_interrupt_disable();
+        if (sock->rcvevent)
+        {
+            mask |= POLLIN;
+        }
+        if (sock->sendevent)
+        {
+            mask |= POLLOUT;
+        }
+        if (sock->errevent)
+        {
+            mask |= POLLERR;
+        }
+        rt_hw_interrupt_enable(level);
+    }
+
+    return mask;
+}
+#endif
+
+static const struct proto_ops wiz_inet_stream_ops =
+{
+    wiz_socket,
+    wiz_closesocket,
+    NULL,
+    NULL,
+    wiz_connect,
+    NULL,
+    wiz_sendto,
+    wiz_recvfrom,
+    wiz_getsockopt,
+    wiz_setsockopt,
+    wiz_shutdown,
+    NULL,
+    NULL,
+    NULL,
+
+#ifdef SAL_USING_POSIX
+    wiz_poll,
+#endif /* SAL_USING_POSIX */
+};
+
+static int wiz_create(struct sal_socket *socket, int type, int protocol)
+{
+    RT_ASSERT(socket);
+
+    //TODO Check type & protocol
+
+    socket->ops = &wiz_inet_stream_ops;
+
+    return 0;
+}
+
+static const struct proto_family wiz_inet_family_ops = {
+    "wiz",
+    AF_WIZ,
+    AF_INET,
+    wiz_create,
+    wiz_gethostbyname,
+    NULL,
+    wiz_freeaddrinfo,
+    wiz_getaddrinfo,
+};
+
+int wiz_inet_init(void)
+{
+    sal_proto_family_register(&wiz_inet_family_ops);
+
+    return 0;
+}
+INIT_COMPONENT_EXPORT(wiz_inet_init);

src/wiz_device.c

@@ -0,0 +1,173 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-09-26     chenyong     first version
+ */
+
+#include <stdlib.h>
+
+#include <wiz.h>
+#include <wiz_socket.h>
+#include <W5500/w5500.h>
+
+#define DBG_ENABLE
+#define DBG_SECTION_NAME               "wiz.dev"
+#ifdef WIZ_DEBUG
+#define DBG_LEVEL                      DBG_LOG
+#else
+#define DBG_LEVEL                      DBG_INFO
+#endif /* WIZ_DEBUG */
+#define DBG_COLOR
+#include <rtdbg.h>
+
+extern int wiz_recv_notice_cb(int socket);
+extern int wiz_closed_notice_cb(int socket);
+
+static rt_mailbox_t wiz_rx_mb = RT_NULL;
+struct rt_spi_device *wiz_device = RT_NULL;
+
+static void wiz_isr(void)
+{
+    /* enter interrupt */
+    rt_interrupt_enter();
+
+    rt_mb_send(wiz_rx_mb, (rt_uint32_t) wiz_device);
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+
+static void wiz_data_thread_entry(void *parameter)
+{
+#define IR_SOCK(ch)         (0x01 << ch)   /**< check socket interrupt */
+
+    struct rt_spi_device* dev;
+
+    while (1)
+    {
+        if (rt_mb_recv(wiz_rx_mb, (rt_uint32_t*) &dev, RT_WAITING_FOREVER) == RT_EOK)
+        {
+            uint8_t ir, sir, sn_ir;
+            int8_t socket = -1;
+
+            /* get IR data than clean IR */
+            ir = getIR();
+            setIR(ir);
+
+            if ((ir & IR_CONFLICT) == IR_CONFLICT)
+            {
+                setIR(IR_CONFLICT);
+            }
+
+            if ((ir & IR_UNREACH) == IR_UNREACH)
+            {
+                setIR(IR_UNREACH);
+            }
+
+            /* get and process socket interrupt register */
+            sir = getSIR();
+
+            for (socket = 0; socket < 8; socket++)
+            {
+                sn_ir = 0;
+
+                if (sir & IR_SOCK(socket))
+                {
+                    /* save interrupt value*/
+                    sn_ir = getSn_IR(socket);
+
+                    if (sn_ir & Sn_IR_CON)
+                    {
+                        setSn_IR(socket, Sn_IR_CON);
+                    }
+                    if (sn_ir & Sn_IR_DISCON)
+                    {
+                        wiz_closed_notice_cb(socket);
+                        setSn_IR(socket, Sn_IR_DISCON);
+                    }
+                    if (sn_ir & Sn_IR_RECV)
+                    {
+                        wiz_recv_notice_cb(socket);
+                        setSn_IR(socket, Sn_IR_RECV);
+                    }
+                    if (sn_ir & Sn_IR_TIMEOUT)
+                    {
+                        setSn_IR(socket, Sn_IR_TIMEOUT);
+                    }
+                }
+            }
+        }
+    }
+}
+
+static int wiz_spi_init(const char *spi_dev_name)
+{
+    rt_thread_t tid;
+
+    RT_ASSERT(spi_dev_name);
+
+    wiz_device = (struct rt_spi_device *) rt_device_find(spi_dev_name);
+    if (wiz_device == RT_NULL)
+    {
+        LOG_E("WIZnet SPI device %d not found!", spi_dev_name);
+        return -RT_ENOSYS;
+    }
+
+    /* config spi */
+    {
+        struct rt_spi_configuration cfg;
+        cfg.data_width = 8;
+        cfg.mode = RT_SPI_MASTER | RT_SPI_MODE_0 | RT_SPI_MSB;  /* SPI Compatible Modes 0 */
+        cfg.max_hz = 40 * 1000 * 1000;                          /* SPI Interface with Clock Speeds Up to 40 MHz */
+        rt_spi_configure(wiz_device, &cfg);
+    }
+
+    if (rt_device_open((rt_device_t) wiz_device, RT_DEVICE_OFLAG_RDWR) != RT_EOK)
+    {
+        rt_kprintf("open WIZnet SPI device %s error\n", spi_dev_name);
+        return -RT_ERROR;
+    }
+
+    /* initialize RX mailbox */
+    wiz_rx_mb = rt_mb_create("wiz_mb", WIZ_RX_MBOX_NUM, RT_IPC_FLAG_FIFO);
+    if (wiz_rx_mb == RT_NULL)
+    {
+        LOG_E("WIZnet create receive data mailbox error.");
+        return -RT_ENOMEM;
+    }
+
+    /* create WIZnet SPI RX thread  */
+    tid = rt_thread_create("wiz", wiz_data_thread_entry, RT_NULL, 2 * 1024, RT_THREAD_PRIORITY_MAX / 6, 20);
+    if (tid != RT_NULL)
+    {
+        rt_thread_startup(tid);
+    }
+
+    return RT_EOK;
+}
+
+int wiz_device_init(const char *spi_dev_name, rt_base_t rst_pin, rt_base_t isr_pin)
+{
+    int result = RT_EOK;
+
+    /* WIZnet SPI device initialize */
+    result = wiz_spi_init(spi_dev_name);
+    if (result != RT_EOK)
+    {
+        return result;
+    }
+
+    /* initialize reset pin */
+    rt_pin_mode(rst_pin, PIN_MODE_INPUT_PULLDOWN);
+
+    /* initialize interrupt pin */
+    rt_pin_mode(isr_pin, PIN_MODE_INPUT_PULLUP);
+    rt_pin_attach_irq(isr_pin, PIN_IRQ_MODE_FALLING, (void (*)(void*)) wiz_isr, RT_NULL);
+    rt_pin_irq_enable(isr_pin, PIN_IRQ_ENABLE);
+
+    return RT_EOK;
+}

src/wiz_socket.c

@@ -0,0 +1,1214 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-09-26     chenyong     first version
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <sys/time.h>
+
+#include <rtthread.h>
+#ifdef SAL_USING_POSIX
+#include <dfs_poll.h>
+#endif
+
+#include <wiz_socket.h>
+
+#include <W5500/w5500.h>
+#include <DNS/dns.h>
+#include <wizchip_socket.h>
+
+#define DBG_ENABLE
+#define DBG_SECTION_NAME               "wiz.socket"
+#ifdef WIZ_DEBUG
+#define DBG_LEVEL                      DBG_LOG
+#else
+#define DBG_LEVEL                      DBG_INFO
+#endif /* WIZ_DEBUG */
+#define DBG_COLOR
+#include <rtdbg.h>
+
+#ifndef WIZ_SOCKETS_NUM
+#define WIZ_SOCKETS_NUM                8
+#endif
+
+#ifndef WIZ_DEF_LOCAL_PORT
+#define WIZ_DEF_LOCAL_PORT             6000
+#endif
+
+extern rt_bool_t wiz_init_status;
+#define WIZ_INIT_STATUS_CHECK                                   \
+    if (wiz_init_status == RT_FALSE ||                          \
+            (getPHYCFGR() & PHYCFGR_LNK_ON) != PHYCFGR_LNK_ON)  \
+    {                                                           \
+        return -1;                                              \
+    }                                                           \
+
+#define HTONS_PORT(x)                  ((((x) & 0x00ffUL) << 8) | (((x) & 0xff00UL) >> 8))
+#define NIPQUAD(addr, index)           ((unsigned char *)&addr)[index]
+
+typedef enum {
+    WIZ_EVENT_SEND,
+    WIZ_EVENT_RECV,
+    WIZ_EVENT_ERROR,
+} wiz_event_t;
+
+/* the global array of available sockets */
+static struct wiz_socket  sockets[WIZ_SOCKETS_NUM];
+static uint16_t wiz_port = WIZ_DEF_LOCAL_PORT;
+
+struct wiz_socket *wiz_get_socket(int socket)
+{
+    if (socket < 0 || socket >= WIZ_SOCKETS_NUM)
+    {
+        return RT_NULL;
+    }
+
+    /* check socket structure valid or not */
+    if (sockets[socket].magic != WIZ_SOCKET_MAGIC)
+    {
+        return RT_NULL;
+    }
+
+    return &sockets[socket];
+}
+
+static void wiz_do_event_changes(struct wiz_socket *sock, wiz_event_t event, rt_bool_t is_plus)
+{
+    switch (event)
+    {
+    case WIZ_EVENT_SEND:
+    {
+        if (is_plus)
+        {
+            sock->sendevent = 1;
+
+#ifdef SAL_USING_POSIX
+            rt_wqueue_wakeup(&sock->wait_head, (void*) POLLOUT);
+#endif
+        }
+        else if (sock->sendevent)
+        {
+            sock->sendevent = 0;
+        }
+        break;
+    }
+    case WIZ_EVENT_RECV:
+    {
+        if (is_plus)
+        {
+            sock->rcvevent++;
+
+#ifdef SAL_USING_POSIX
+            rt_wqueue_wakeup(&sock->wait_head, (void*) POLLIN);
+#endif
+        }
+        else if (sock->rcvevent)
+        {
+            sock->rcvevent--;
+        }
+        break;
+    }
+    case WIZ_EVENT_ERROR:
+    {
+        if (is_plus)
+        {
+            sock->errevent++;
+
+#ifdef SAL_USING_POSIX
+            rt_wqueue_wakeup(&sock->wait_head, (void*) POLLERR);
+#endif
+        }
+        else if (sock->errevent)
+        {
+            sock->errevent--;
+        }
+        break;
+    }
+    default:
+        LOG_E("Not supported event (%d)", event);
+    }
+}
+
+static void wiz_do_event_clean(struct wiz_socket *sock, wiz_event_t event)
+{
+    switch (event)
+    {
+    case WIZ_EVENT_SEND:
+    {
+        sock->sendevent = 0;
+        break;
+    }
+    case WIZ_EVENT_RECV:
+    {
+        sock->rcvevent = 0;
+        break;
+    }
+    case WIZ_EVENT_ERROR:
+    {
+        sock->errevent = 0;
+        break;
+    }
+    default:
+        LOG_E("Not supported event (%d)", event);
+    }
+}
+
+
+int wiz_recv_notice_cb(int socket)
+{
+    struct wiz_socket *sock;
+
+    sock = wiz_get_socket(socket);
+    if (sock == RT_NULL)
+    {
+        return -1;
+    }
+
+    rt_sem_release(sock->recv_notice);
+
+    wiz_do_event_changes(sock, WIZ_EVENT_RECV, RT_TRUE);
+
+    return 0;
+}
+
+int wiz_closed_notice_cb(int socket)
+{
+    struct wiz_socket *sock;
+    uint8_t socket_state = 0;
+
+    sock = wiz_get_socket(socket);
+    if (sock == RT_NULL)
+    {
+        return -1;
+    }
+
+    socket_state = getSn_SR(socket);
+    if (socket_state != SOCK_CLOSE_WAIT)
+    {
+        return -1;
+    }
+
+    if (wizchip_close(socket) != SOCK_OK)
+    {
+        LOG_E("WIZnet socket(%d) close failed.", socket);
+        return -1;
+    }
+    sock->state = SOCK_CLOSED;
+
+    wiz_do_event_changes(sock, WIZ_EVENT_RECV, RT_TRUE);
+    wiz_do_event_changes(sock, WIZ_EVENT_ERROR, RT_TRUE);
+
+    rt_sem_release(sock->recv_notice);
+
+    return 0;
+}
+
+static struct wiz_socket *alloc_socket(void)
+{
+    static rt_mutex_t wiz_slock = RT_NULL;
+    struct wiz_socket *sock;
+    char name[RT_NAME_MAX];
+    int idx;
+
+    if (wiz_slock == RT_NULL)
+    {
+        /* create WIZnet socket lock */
+        wiz_slock = rt_mutex_create("w_lock", RT_IPC_FLAG_FIFO);
+        if (wiz_slock == RT_NULL)
+        {
+            LOG_E("No memory for WIZnet socket lock!");
+            return RT_NULL;
+        }
+    }
+
+    rt_mutex_take(wiz_slock, RT_WAITING_FOREVER);
+
+    /* find an empty WIZnet socket entry */
+    for (idx = 0; idx < WIZ_SOCKETS_NUM && sockets[idx].magic; idx++);
+
+    /* can't find an empty protocol family entry */
+    if (idx == WIZ_SOCKETS_NUM)
+    {
+        goto __err;
+    }
+
+    sock = &(sockets[idx]);
+    sock->magic = WIZ_SOCKET_MAGIC;
+    sock->socket = idx;
+    sock->state = SOCK_CLOSED;
+    sock->server_addr = RT_NULL;
+    sock->recv_timeout = 0;
+    sock->send_timeout = 0;
+    sock->rcvevent = 0;
+    sock->sendevent = 0;
+    sock->errevent = 0;
+
+    rt_snprintf(name, RT_NAME_MAX, "%s%d", "wiz_sr", idx);
+    /* create WIZnet socket receive mailbox */
+    if ((sock->recv_notice = rt_sem_create(name, 0, RT_IPC_FLAG_FIFO)) == RT_NULL)
+    {
+        goto __err;
+    }
+
+    rt_snprintf(name, RT_NAME_MAX, "%s%d", "wiz_sr", idx);
+    /* create WIZnet socket receive ring buffer lock */
+    if ((sock->recv_lock = rt_mutex_create(name, RT_IPC_FLAG_FIFO)) == RT_NULL)
+    {
+        goto __err;
+    }
+
+    rt_mutex_release(wiz_slock);
+    return sock;
+
+__err:
+    rt_mutex_release(wiz_slock);
+    return RT_NULL;
+}
+
+int wiz_socket(int domain, int type, int protocol)
+{
+    struct wiz_socket *sock;
+    uint8_t socket_type;
+    uint8_t socket_state;
+
+    /* check WIZnet initialize status */
+    WIZ_INIT_STATUS_CHECK;
+
+    /* check socket family protocol */
+    RT_ASSERT(domain == 46 || domain == 2);
+
+    switch (type)
+    {
+    case SOCK_STREAM:
+        socket_type = Sn_MR_TCP;
+        break;
+
+    case SOCK_DGRAM:
+        socket_type = Sn_MR_UDP;
+        break;
+
+    default:
+        LOG_E("don't support socket type (%d)!", type);
+        return -1;
+    }
+
+    /* allocate and initialize a new WIZnet socket */
+    sock = alloc_socket();
+    if (sock == RT_NULL)
+    {
+        LOG_E("allocate a new WIZnet socket failed!");
+        return -1;
+    }
+    sock->type = socket_type;
+
+#ifdef SAL_USING_POSIX
+    rt_wqueue_init(&sock->wait_head);
+#endif
+
+    socket_state = getSn_SR(sock->socket);
+    if (socket_state == SOCK_CLOSED)
+    {
+        switch(sock->type)
+        {
+        case Sn_MR_TCP:
+            if (wizchip_socket(sock->socket, sock->type, wiz_port++, Sn_MR_ND) != sock->socket)
+            {
+                LOG_E("WIZnet TCP socket(%d) create failed!", sock->socket);
+                rt_memset(sock, 0x00, sizeof(struct wiz_socket));
+                return -1;
+            }
+            break;
+
+        case Sn_MR_UDP:
+            if (wizchip_socket(sock->socket, sock->type, wiz_port++, 0) != sock->socket)
+            {
+                LOG_E("WIZnet UDP socket(%d) create failed!", sock->socket);
+                rt_memset(sock, 0x00, sizeof(struct wiz_socket));
+                return -1;
+            }
+            break;
+
+        default:
+            LOG_E("Socket (%d) type %d is not support.", sock->socket, sock->type);
+            return -1;
+        }
+    }
+    else
+    {
+        rt_memset(sock, 0x00, sizeof(struct wiz_socket));
+        return -1;
+    }
+    sock->state = SOCK_INIT;
+
+    return sock->socket;
+}
+
+static int free_socket(struct wiz_socket *sock)
+{
+    if (sock->recv_notice)
+    {
+        rt_sem_delete(sock->recv_notice);
+    }
+
+    if (sock->recv_lock)
+    {
+        rt_mutex_delete(sock->recv_lock);
+    }
+
+    rt_memset(sock, 0x00, sizeof(struct wiz_socket));
+
+    return 0;
+}
+
+int wiz_closesocket(int socket)
+{
+    struct wiz_socket *sock;
+    uint8_t socket_state;
+
+    /* check WIZnet initialize status */
+    WIZ_INIT_STATUS_CHECK;
+
+    sock = wiz_get_socket(socket);
+    if(sock == RT_NULL)
+    {
+        return -1;
+    }
+
+    socket_state = getSn_SR(socket);
+    if (socket_state == SOCK_CLOSED)
+    {
+        free_socket(sock);
+        return -1;
+    }
+
+    if (wizchip_close(socket) != SOCK_OK)
+    {
+        LOG_E("WIZnet socket(%d) close failed.", socket);
+        free_socket(sock);
+        return -1;
+    }
+
+    return free_socket(sock);
+}
+
+int wiz_shutdown(int socket, int how)
+{
+    struct wiz_socket *sock;
+    uint8_t socket_state;
+
+    /* check WIZnet initialize status */
+    WIZ_INIT_STATUS_CHECK;
+
+    sock = wiz_get_socket(socket);
+    if (sock == RT_NULL)
+    {
+        return -1;
+    }
+
+    socket_state = getSn_SR(socket);
+    if (socket_state == SOCK_CLOSED)
+    {
+        free_socket(sock);
+        return -1;
+    }
+
+    if (wizchip_close(socket) != SOCK_OK)
+    {
+        LOG_E("WIZnet socket(%d) shutdown failed.", socket);
+        free_socket(sock);
+        return -1;
+    }
+
+    return free_socket(sock);
+}
+
+/* get IP address and port by socketaddr structure information */
+static int socketaddr_to_ipaddr_port(const struct sockaddr *sockaddr, ip_addr_t *addr, uint16_t *port)
+{
+    const struct sockaddr_in* sin = (const struct sockaddr_in*) (const void *) sockaddr;
+
+    (*addr).u_addr.ip4.addr = sin->sin_addr.s_addr;
+
+    *port = (uint16_t) HTONS_PORT(sin->sin_port);
+
+    return 0;
+}
+
+/* ipaddr structure change to IP address */
+static int ipaddr_to_ipstr(const struct sockaddr *sockaddr, uint8_t *ipstr)
+{
+    struct sockaddr_in *sin = (struct sockaddr_in *) sockaddr;
+
+    /* change network ip_addr to ip string  */
+    ipstr[0] = NIPQUAD(sin->sin_addr.s_addr, 0);
+    ipstr[1] = NIPQUAD(sin->sin_addr.s_addr, 1);
+    ipstr[2] = NIPQUAD(sin->sin_addr.s_addr, 2);
+    ipstr[3] = NIPQUAD(sin->sin_addr.s_addr, 3);
+
+    return 0;
+}
+
+int wiz_connect(int socket, const struct sockaddr *name, socklen_t namelen)
+{
+    struct wiz_socket *sock;
+    ip_addr_t remote_addr;
+    uint16_t remote_port;
+    uint8_t socket_state;
+    uint8_t ipstr[4] = { 0 };
+    int result = 0;
+
+    /* check WIZnet initialize status */
+    WIZ_INIT_STATUS_CHECK;
+
+    sock = wiz_get_socket(socket);
+    if (sock == RT_NULL)
+    {
+        return -1;
+    }
+
+    socket_state = getSn_SR(socket);
+    if (socket_state == SOCK_UDP)
+    {
+        if(sock->server_addr == RT_NULL)
+        {
+            sock->server_addr = rt_calloc(1, sizeof(struct sockaddr));
+            if (sock->server_addr == RT_NULL)
+            {
+                LOG_E("no memory for structure sockaddr.");
+                return -1;
+            }
+        }
+        sock->server_addr->sa_len = name->sa_len;
+        sock->server_addr->sa_family = name->sa_family;
+        rt_memcpy(sock->server_addr->sa_data, name->sa_data, 14);
+
+        return 0;
+    }
+    else if (socket_state != SOCK_INIT)
+    {
+        LOG_E("WIZnet connect failed, get socket(%d) register state(%d) error.", socket, socket_state);
+        result = -1;
+        goto __exit;
+    }
+
+    /* get IP address and port by socketaddr structure */
+    socketaddr_to_ipaddr_port(name, &remote_addr, &remote_port);
+    ipaddr_to_ipstr(name, ipstr);
+
+    if (wizchip_connect(socket, ipstr, remote_port) != SOCK_OK)
+    {
+        LOG_E("WIZnet socket(%d) connect failed.", socket);
+        result = -1;
+        goto __exit;
+    }
+    sock->state = SOCK_ESTABLISHED;
+
+__exit:
+    if (result < 0)
+    {
+        wiz_do_event_changes(sock, WIZ_EVENT_ERROR, RT_TRUE);
+    }
+    else
+    {
+        wiz_do_event_changes(sock, WIZ_EVENT_SEND, RT_TRUE);
+    }
+
+    return result;
+}
+
+int wiz_sendto(int socket, const void *data, size_t size, int flags, const struct sockaddr *to, socklen_t tolen)
+{
+    struct wiz_socket *sock;
+    uint8_t socket_state;
+    int32_t send_len = 0;
+
+    /* check WIZnet initialize status */
+    WIZ_INIT_STATUS_CHECK;
+
+    if (data == RT_NULL || size == 0)
+    {
+        LOG_E("WIZnet sendto input data or size error!");
+        return -1;
+    }
+
+    sock = wiz_get_socket(socket);
+    if (sock == RT_NULL)
+    {
+        return -1;
+    }
+
+    socket_state = getSn_SR(socket);
+    switch (sock->type)
+    {
+    case Sn_MR_TCP:
+    {
+        if (socket_state == SOCK_CLOSED)
+        {
+            return 0;
+        }
+        else if (socket_state != SOCK_ESTABLISHED)
+        {
+            LOG_E("WIZnet send failed, get socket(%d) register state(%d) error.", socket, socket_state);
+            return -1;
+        }
+
+        if ((send_len = wizchip_send(socket, (uint8_t *) data, size)) < 0)
+        {
+            LOG_E("WIZnet socket(%d) send data failed(%d).", socket, send_len);
+            return -1;
+        }
+        break;
+    }
+    case Sn_MR_UDP:
+    {
+        ip_addr_t remote_addr;
+        uint16_t remote_port = 0;
+        uint8_t ipstr[4] = { 0 };
+
+        if (socket_state != SOCK_UDP)
+        {
+            LOG_E("WIZnet sendto failed, get socket(%d) register state(%d) error.", socket, socket_state);
+            return -1;
+        }
+
+        if (to)
+        {
+            socketaddr_to_ipaddr_port(to, &remote_addr, &remote_port);
+            ipaddr_to_ipstr(to, ipstr);
+        }
+        else if (sock->server_addr)
+        {
+            socketaddr_to_ipaddr_port(sock->server_addr, &remote_addr, &remote_port);
+            ipaddr_to_ipstr(sock->server_addr, ipstr);
+        }
+
+        if ((send_len = wizchip_sendto(socket, (uint8_t *) data, size, ipstr, remote_port)) < 0)
+        {
+            LOG_E("WIZnet socket(%d) send data failed(%d).", socket, send_len);
+            return -1;
+        }
+        break;
+    }
+
+    default:
+        LOG_E("WIZnet socket (%d) type %d is not support.", socket, sock->type);
+        return -1;
+    }
+
+    return send_len;
+}
+
+int wiz_send(int socket, const void *data, size_t size, int flags)
+{
+    return wiz_sendto(socket, data, size, flags, RT_NULL, 0);
+}
+
+int wiz_recvfrom(int socket, void *mem, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen)
+{
+    struct wiz_socket *sock;
+    uint8_t socket_state = 0;
+    int32_t recv_len = 0, timeout = 0;
+    int result = 0;
+
+    /* check WIZnet initialize status */
+    WIZ_INIT_STATUS_CHECK;
+
+    if (mem == RT_NULL || len == 0)
+    {
+        LOG_E("WIZnet recvfrom input data or length error!");
+        return -1;
+    }
+
+    sock = wiz_get_socket(socket);
+    if (sock == RT_NULL)
+    {
+        return -1;
+    }
+
+    /* set WIZNnet socket receive timeout */
+    if ((timeout = sock->recv_timeout) == 0)
+    {
+        timeout = RT_WAITING_FOREVER;
+    }
+
+    socket_state = getSn_SR(socket);
+    switch (sock->type)
+    {
+    case Sn_MR_TCP:
+    {
+        if (socket_state != SOCK_ESTABLISHED)
+        {
+            LOG_E("WIZnet receive failed, get socket(%d) register state(%d) error.", socket, socket_state);
+            result = -1;
+            goto __exit;
+
+        }
+
+        while (1)
+        {
+            /* wait the receive semaphore */
+            if (rt_sem_take(sock->recv_notice, timeout) < 0)
+            {
+                LOG_E("WIZnet socket (%d) receive timeout (%d)!", socket, timeout);
+                result = -1;
+                errno = EAGAIN;
+                goto __exit;
+            }
+            else
+            {
+                if (sock->state == SOCK_ESTABLISHED)
+                {
+                    /* get receive buffer to receiver ring buffer */
+                    rt_mutex_take(sock->recv_lock, RT_WAITING_FOREVER);
+                    recv_len = wizchip_recv(socket, mem, len);
+                    if (recv_len < 0)
+                    {
+                        LOG_E("WIZnet socket(%d) receive data failed(%d).", socket, recv_len);
+                        rt_mutex_release(sock->recv_lock);
+                        result = -1;
+                        goto __exit;
+                    }
+                    rt_mutex_release(sock->recv_lock);
+                }
+                else if (sock->state == SOCK_CLOSED)
+                {
+                    LOG_D("received data exit, current socket (%d) is closed by remote.", socket);
+                    result = 0;
+                    goto __exit;
+                }
+                break;
+            }
+        }
+        break;
+    }
+
+    case Sn_MR_UDP:
+    {
+        ip_addr_t remote_addr;
+        uint16_t remote_port = 0;
+        uint8_t ipstr[4] = { 0 };
+        uint16_t rx_len = 0;
+
+        if (socket_state != SOCK_UDP)
+        {
+            LOG_E("WIZnet recvfrom failed, get socket(%d) register state(%d) error.", socket, socket_state);
+            return -1;
+        }
+
+        if (from)
+        {
+            socketaddr_to_ipaddr_port(from, &remote_addr, &remote_port);
+            ipaddr_to_ipstr(from, ipstr);
+        }
+        else if (sock->server_addr)
+        {
+            socketaddr_to_ipaddr_port(sock->server_addr, &remote_addr, &remote_port);
+            ipaddr_to_ipstr(sock->server_addr, ipstr);
+        }
+
+        if (rt_sem_take(sock->recv_notice, timeout) < 0)
+        {
+            LOG_E("WIZnet socket (%d) receive timeout (%d)!", socket, timeout);
+            result = -1;
+            goto __exit;
+        }
+        else
+        {
+            if ((rx_len = getSn_RX_RSR(socket)) > 0)
+            {
+                rx_len = rx_len > len ? len : rx_len;
+
+                if((recv_len = wizchip_recvfrom(socket, mem, rx_len, ipstr, &remote_port)) < 0)
+                {
+                    LOG_E("WIZnet socket(%d) receive data failed(%d).", socket, recv_len);
+                    result = -1;
+                    goto __exit;
+                }
+            }
+        }
+        break;
+    }
+
+    default:
+        LOG_E("WIZnet socket (%d) type %d is not support.", socket, sock->type);
+        return -1;
+    }
+
+
+__exit:
+    if (recv_len > 0)
+    {
+        result = recv_len;
+        wiz_do_event_changes(sock, WIZ_EVENT_RECV, RT_FALSE);
+
+//        if (getSn_RX_RSR(socket) > 0)
+//        {
+//            wiz_do_event_changes(sock, WIZ_EVENT_RECV, RT_TRUE);
+//        }
+        if (getSn_RX_RSR(socket) == 0)
+        {
+            wiz_do_event_clean(sock, WIZ_EVENT_RECV);
+        }
+    }
+    else
+    {
+        wiz_do_event_changes(sock, WIZ_EVENT_ERROR, RT_TRUE);
+    }
+
+    return result;
+}
+
+int wiz_recv(int socket, void *mem, size_t len, int flags)
+{
+    return wiz_recvfrom(socket, mem, len, flags, RT_NULL, RT_NULL);
+}
+
+int wiz_getsockopt(int socket, int level, int optname, void *optval, socklen_t *optlen)
+{
+    struct wiz_socket *sock;
+    int32_t timeout;
+
+    /* check WIZnet initialize status */
+    WIZ_INIT_STATUS_CHECK;
+
+    if (optval == RT_NULL || optlen == RT_NULL)
+    {
+        LOG_E("WIZnet getsocketopt input option value or option length error.");
+        return -1;
+    }
+
+    sock = wiz_get_socket(socket);
+    if (sock == RT_NULL)
+    {
+        return -1;
+    }
+
+    switch (level)
+    {
+    case SOL_SOCKET:
+    {
+        switch (optname)
+        {
+        case SO_RCVTIMEO:
+            timeout = sock->recv_timeout;
+            ((struct timeval *)(optval))->tv_sec = (timeout) / 1000U;
+            ((struct timeval *)(optval))->tv_usec = (timeout % 1000U) * 1000U;
+            break;
+
+        case SO_SNDTIMEO:
+            timeout = sock->send_timeout;
+            ((struct timeval *) optval)->tv_sec = timeout / 1000U;
+            ((struct timeval *) optval)->tv_usec = (timeout % 1000U) * 1000U;
+            break;
+
+        default:
+            LOG_E("WIZnet socket (%d) not support option name : %d.", socket, optname);
+            return -1;
+        }
+        break;
+    }
+
+    default:
+    {
+        int8_t ret = 0;
+
+        ret = wizchip_getsockopt(socket, (sockopt_type) level, optval);
+        if (ret != SOCK_OK)
+        {
+            LOG_E("WIZnet getsocketopt input level(%d) error.", level);
+            return ret;
+        }
+        break;
+    }
+    }
+
+    return 0;
+}
+int wiz_setsockopt(int socket, int level, int optname, const void *optval, socklen_t optlen)
+{
+    struct wiz_socket *sock;
+
+    /* check WIZnet initialize status */
+    WIZ_INIT_STATUS_CHECK;
+
+    if (optval == RT_NULL)
+    {
+        LOG_E("WIZnet setsockopt input option value or option length error.");
+        return -1;
+    }
+
+    sock = wiz_get_socket(socket);
+    if (sock == RT_NULL)
+    {
+        return -1;
+    }
+
+    switch (level)
+    {
+    case SOL_SOCKET:
+    {
+        switch (optname)
+        {
+        case SO_RCVTIMEO:
+            sock->recv_timeout = ((const struct timeval *) optval)->tv_sec * 1000
+                    + ((const struct timeval *) optval)->tv_usec / 1000;
+            break;
+
+        case SO_SNDTIMEO:
+            sock->send_timeout = ((const struct timeval *) optval)->tv_sec * 1000
+                    + ((const struct timeval *) optval)->tv_usec / 1000;
+            break;
+
+        default:
+            LOG_E("WIZnet socket (%d) not support option name : %d.", socket, optname);
+            return -1;
+        }
+        break;
+    }
+
+    case IPPROTO_TCP:
+    {
+        switch (optname)
+        {
+        case TCP_NODELAY:
+            break;
+        }
+        break;
+    }
+
+    default:
+    {
+        int8_t ret = 0;
+
+        ret = wizchip_setsockopt(socket, (sockopt_type) optname, (void *)optval);
+        if (ret != SOCK_OK)
+        {
+            LOG_E("WIZnet getsocketopt input level(%d) error.", level);
+            return ret;
+        }
+        break;
+    }
+    }
+
+    return 0;
+}
+
+static uint32_t ipstr_atol(const char* nptr)
+{
+    uint32_t total = 0;
+    char sign = '+';
+    /* jump space */
+    while (isspace(*nptr))
+    {
+        ++nptr;
+    }
+
+    if (*nptr == '-' || *nptr == '+')
+    {
+        sign = *nptr++;
+    }
+
+    while (isdigit(*nptr))
+    {
+        total = 10 * total + ((*nptr++) - '0');
+    }
+    return (sign == '-') ? -total : total;
+}
+
+/* IP address to unsigned int type */
+static uint32_t ipstr_to_u32(char *ipstr)
+{
+    char ipBytes[4] = { 0 };
+    uint32_t i;
+
+    for (i = 0; i < 4; i++, ipstr++)
+    {
+        ipBytes[i] = (char) ipstr_atol(ipstr);
+        if ((ipstr = strchr(ipstr, '.')) == RT_NULL)
+        {
+            break;
+        }
+    }
+    return *(uint32_t *) ipBytes;
+}
+
+struct hostent *wiz_gethostbyname(const char *name)
+{
+    ip_addr_t addr;
+    char ipstr[16] = { 0 };
+    /* buffer variables for at_gethostbyname() */
+    static struct hostent s_hostent;
+    static char *s_aliases;
+    static ip_addr_t s_hostent_addr;
+    static ip_addr_t *s_phostent_addr[2];
+    static char s_hostname[DNS_MAX_NAME_LENGTH + 1];
+    size_t idx = 0;
+
+    /* check WIZnet initialize status */
+    if (wiz_init_status == RT_FALSE ||
+            (getPHYCFGR() & PHYCFGR_LNK_ON) != PHYCFGR_LNK_ON)
+    {
+        return RT_NULL;
+    }
+
+    if (name == RT_NULL)
+    {
+        LOG_E("WIZnet gethostbyname input name error!");
+        return RT_NULL;
+    }
+
+    /* check domain name or IP address */
+    for (idx = 0; idx < rt_strlen(name) && !isalpha(name[idx]); idx++);
+
+    if (idx < rt_strlen(name))
+    {
+        int8_t ret = 0;
+        uint8_t remote_ip[4] = { 0 };
+        uint8_t dns_ip[4] = { 114, 114, 114, 114 };
+        uint8_t data_buffer[512];
+
+        for (idx = 0; idx < WIZ_SOCKETS_NUM && sockets[idx].magic; idx++);
+        if (idx >= WIZ_SOCKETS_NUM)
+        {
+            LOG_E("wizenet DNS failed, socket number is full.");
+            return RT_NULL;
+        }
+
+        /* DNS client initialize */
+        DNS_init(idx, data_buffer);
+        /* DNS client processing */
+        ret = DNS_run(dns_ip, (uint8_t *) name, remote_ip);
+        if (ret == -1)
+        {
+            LOG_E("WIZnet MAX_DOMAIN_NAME is too small, should be redefined it.");
+            return RT_NULL;
+        }
+        else if (ret < 0)
+        {
+            LOG_E("WIZnet gethostbyname failed(%d).", ret);
+            return RT_NULL;
+        }
+
+        rt_snprintf(ipstr, 16, "%u.%u.%u.%u", remote_ip[0], remote_ip[1], remote_ip[2], remote_ip[3]);
+    }
+    else
+    {
+        /* input name is IP address */
+        rt_strncpy(ipstr, name, rt_strlen(name));
+    }
+
+    addr.u_addr.ip4.addr = ipstr_to_u32(ipstr);
+
+    /* fill hostent structure */
+    s_hostent_addr = addr;
+    s_phostent_addr[0] = &s_hostent_addr;
+    s_phostent_addr[1] = RT_NULL;
+    rt_strncpy(s_hostname, name, DNS_MAX_NAME_LENGTH);
+    s_hostname[DNS_MAX_NAME_LENGTH] = 0;
+    s_hostent.h_name = s_hostname;
+    s_aliases = RT_NULL;
+    s_hostent.h_aliases = &s_aliases;
+    s_hostent.h_addrtype = AF_AT;
+    s_hostent.h_length = sizeof(ip_addr_t);
+    s_hostent.h_addr_list = (char**) &s_phostent_addr;
+
+    return &s_hostent;
+}
+
+int wiz_getaddrinfo(const char *nodename, const char *servname, const struct addrinfo *hints, struct addrinfo **res)
+{
+    int port_nr = 0;
+    ip_addr_t addr;
+    struct addrinfo *ai;
+    struct sockaddr_storage *sa;
+    size_t total_size = 0;
+    size_t namelen = 0;
+    int ai_family = 0;
+
+    /* check WIZnet initialize status */
+    if (wiz_init_status == RT_FALSE ||
+            (getPHYCFGR() & PHYCFGR_LNK_ON) != PHYCFGR_LNK_ON)
+    {
+        return EAI_FAIL;
+    }
+
+    if (res == RT_NULL)
+    {
+        return EAI_FAIL;
+    }
+    *res = RT_NULL;
+
+    if ((nodename == RT_NULL) && (servname == RT_NULL))
+    {
+        return EAI_NONAME;
+    }
+
+    if (hints != RT_NULL)
+    {
+        ai_family = hints->ai_family;
+        if (hints->ai_family != AF_WIZ && hints->ai_family != AF_INET && hints->ai_family != AF_UNSPEC)
+        {
+            return EAI_FAMILY;
+        }
+    }
+
+    if (servname != RT_NULL)
+    {
+        /* service name specified: convert to port number */
+        port_nr = atoi(servname);
+        if ((port_nr <= 0) || (port_nr > 0xffff))
+        {
+            return EAI_SERVICE;
+        }
+    }
+
+    if (nodename != RT_NULL)
+    {
+        /* service location specified, try to resolve */
+        if ((hints != RT_NULL) && (hints->ai_flags & AI_NUMERICHOST))
+        {
+            /* no DNS lookup, just parse for an address string */
+            if (!inet_aton(nodename, (ip4_addr_t * )&addr))
+            {
+                return EAI_NONAME;
+            }
+
+            if (ai_family == AF_AT || ai_family == AF_INET)
+            {
+                return EAI_NONAME;
+            }
+        }
+        else
+        {
+            char ipstr[16] = { 0 };
+            size_t idx = 0;
+
+            /* check domain name or IP address */
+            for (idx = 0; idx < rt_strlen(nodename) && !isalpha(nodename[idx]); idx++);
+
+            if(idx < rt_strlen(nodename))
+            {
+                int8_t ret;
+                uint8_t remote_ip[4] = { 0 };
+                uint8_t dns_ip[4] = { 114, 114, 114, 114 };
+                uint8_t data_buffer[512];
+
+                for (idx = 0; idx < WIZ_SOCKETS_NUM && sockets[idx].magic; idx++);
+                if (idx >= WIZ_SOCKETS_NUM)
+                {
+                    LOG_E("wizenet getaddrinfo failed, socket number is full.");
+                    return EAI_FAIL;
+                }
+
+                /* DNS client initialize */
+                DNS_init(idx, data_buffer);
+                /* DNS client processing */
+                ret = DNS_run(dns_ip, (uint8_t *) nodename, remote_ip);
+                if (ret == -1)
+                {
+                    LOG_E("WIZnet MAX_DOMAIN_NAME is too small, should be redefined it.");
+                    return EAI_FAIL;
+                }
+                else if (ret < 0)
+                {
+                    LOG_E("WIZnet getaddrinfo failed(%d).", ret);
+                    return EAI_FAIL;
+                }
+
+                rt_snprintf(ipstr, 16, "%u.%u.%u.%u", remote_ip[0], remote_ip[1], remote_ip[2], remote_ip[3]);
+            }
+            else
+            {
+                /* input name is IP address */
+                rt_strncpy(ipstr, nodename, rt_strlen(nodename));
+            }
+
+            addr.type = IPADDR_TYPE_V4;
+            if ((addr.u_addr.ip4.addr = ipstr_to_u32(ipstr)) == 0)
+            {
+                return EAI_FAIL;
+            }
+        }
+    }
+    else
+    {
+        /* to do service location specified, use loopback address */
+    }
+
+    total_size = sizeof(struct addrinfo) + sizeof(struct sockaddr_storage);
+    if (nodename != RT_NULL)
+    {
+        namelen = rt_strlen(nodename);
+        if (namelen > DNS_MAX_NAME_LENGTH)
+        {
+            /* invalid name length */
+            return EAI_FAIL;
+        }
+        RT_ASSERT(total_size + namelen + 1 > total_size);
+        total_size += namelen + 1;
+    }
+    /* If this fails, please report to lwip-devel! :-) */
+    RT_ASSERT(total_size <= sizeof(struct addrinfo) + sizeof(struct sockaddr_storage) + DNS_MAX_NAME_LENGTH + 1);
+    ai = (struct addrinfo *) rt_malloc(total_size);
+    if (ai == RT_NULL)
+    {
+        return EAI_MEMORY;
+    }
+    rt_memset(ai, 0, total_size);
+    /* cast through void* to get rid of alignment warnings */
+    sa = (struct sockaddr_storage *) (void *) ((uint8_t *) ai + sizeof(struct addrinfo));
+    struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
+    /* set up sockaddr */
+    sa4->sin_addr.s_addr = addr.u_addr.ip4.addr;
+    sa4->sin_family = AF_INET;
+    sa4->sin_len = sizeof(struct sockaddr_in);
+    sa4->sin_port = htons((uint16_t )port_nr);
+    ai->ai_family = AF_INET;
+
+    /* set up addrinfo */
+    if (hints != RT_NULL)
+    {
+        /* copy socktype & protocol from hints if specified */
+        ai->ai_socktype = hints->ai_socktype;
+        ai->ai_protocol = hints->ai_protocol;
+    }
+    if (nodename != RT_NULL)
+    {
+        /* copy nodename to canonname if specified */
+        ai->ai_canonname = ((char *) ai + sizeof(struct addrinfo) + sizeof(struct sockaddr_storage));
+        rt_memcpy(ai->ai_canonname, nodename, namelen);
+        ai->ai_canonname[namelen] = 0;
+    }
+    ai->ai_addrlen = sizeof(struct sockaddr_storage);
+    ai->ai_addr = (struct sockaddr *) sa;
+
+    *res = ai;
+
+    return 0;
+}
+
+void wiz_freeaddrinfo(struct addrinfo *ai)
+{
+    struct addrinfo *next;
+
+    /* check WIZnet initialize status */
+    if (wiz_init_status == RT_FALSE ||
+            (getPHYCFGR() & PHYCFGR_LNK_ON) != PHYCFGR_LNK_ON)
+    {
+        return;
+    }
+
+    while (ai != NULL)
+    {
+        next = ai->ai_next;
+        rt_free(ai);
+        ai = next;
+    }
+}