Merge branch 'hotfix/v3.1.2'

This reverts commit 7c1f381d54.

Ethernet/W5100/w5100.c

@@ -0,0 +1,386 @@
+//*****************************************************************************
+//
+//! \file w5100.c
+//! \brief W5100 HAL Interface.
+//! \version 1.0.0
+//! \date 2013/10/21
+//! \par  Revision history
+//!       <2013/10/21> 1st Release
+//! \author MidnightCow
+//! 
+//! 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 "w5100.h"
+
+#if   (_WIZCHIP_ == 5100)
+/**
+@brief  This function writes the data into W5200 registers.
+*/
+void     WIZCHIP_WRITE(uint32_t AddrSel, uint8_t wb )
+{
+   WIZCHIP_CRITICAL_ENTER();
+   WIZCHIP.CS._select();
+
+#if( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SPI_))
+   WIZCHIP.IF.SPI._write_byte(0xF0);
+   WIZCHIP.IF.SPI._write_byte((AddrSel & 0xFF00) >>  8);
+   WIZCHIP.IF.SPI._write_byte((AddrSel & 0x00FF) >>  0);
+   WIZCHIP.IF.SPI._write_byte(wb);    // Data write (write 1byte data)
+#elif ( (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_DIR_) )
+   //M20150601 : Rename the function for integrating with ioLibrary
+   //WIZCHIP.IF.BUS._write_byte(AddrSel,wb);
+   WIZCHIP.IF.BUS._write_data(AddrSel,wb);
+#elif ( (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_INDIR_) )
+
+   //add indirect bus 
+   //M20150601 : Rename the function for integrating with ioLibrary
+   //WIZCHIP.IF.BUS._write_byte(IDM_AR0,(AddrSel & 0xFF00) >>  8);
+   //WIZCHIP.IF.BUS._write_byte(IDM_AR1,(AddrSel & 0x00FF));	
+   //WIZCHIP.IF.BUS._write_byte(IDM_DR,wb);
+   WIZCHIP.IF.BUS._write_data(IDM_AR0,(AddrSel & 0xFF00) >>  8);
+   WIZCHIP.IF.BUS._write_data(IDM_AR1,(AddrSel & 0x00FF));	
+   WIZCHIP.IF.BUS._write_data(IDM_DR,wb);
+#else
+   #error "Unknown _WIZCHIP_IO_MODE_ in W5100. !!!"
+#endif
+
+   WIZCHIP.CS._deselect();
+   WIZCHIP_CRITICAL_EXIT();
+}
+/**
+@brief  This function reads the value from W5200 registers.
+*/
+uint8_t  WIZCHIP_READ(uint32_t AddrSel)
+{
+   uint8_t ret;
+
+   WIZCHIP_CRITICAL_ENTER();
+   WIZCHIP.CS._select();
+
+#if( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SPI_))
+   WIZCHIP.IF.SPI._write_byte(0x0F);
+   WIZCHIP.IF.SPI._write_byte((AddrSel & 0xFF00) >>  8);
+   WIZCHIP.IF.SPI._write_byte((AddrSel & 0x00FF) >>  0);
+   ret = WIZCHIP.IF.SPI._read_byte(); 
+#elif ( (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_DIR_) )
+   //M20150601 : Rename the function for integrating with ioLibrary
+   //ret = WIZCHIP.IF.BUS._read_byte(AddrSel);
+   ret = WIZCHIP.IF.BUS._read_data(AddrSel);   
+#elif ( (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_INDIR_) )
+
+   //add indirect bus
+   //M20150601 : Rename the function for integrating with ioLibrary
+   //WIZCHIP.IF.BUS._write_byte(IDM_AR0,(AddrSel & 0xFF00) >>  8);
+   //WIZCHIP.IF.BUS._write_byte(IDM_AR1,(AddrSel & 0x00FF));	
+   //ret = WIZCHIP.IF.BUS._read_byte(IDM_DR);
+   WIZCHIP.IF.BUS._write_data(IDM_AR0,(AddrSel & 0xFF00) >>  8);
+   WIZCHIP.IF.BUS._write_data(IDM_AR1,(AddrSel & 0x00FF));	
+   ret = WIZCHIP.IF.BUS._read_data(IDM_DR);
+
+#else
+   #error "Unknown _WIZCHIP_IO_MODE_ in W5100. !!!"   
+#endif
+
+   WIZCHIP.CS._deselect();
+   WIZCHIP_CRITICAL_EXIT();
+   return ret;
+}
+
+
+/**
+@brief  This function writes into W5200 memory(Buffer)
+*/ 
+void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len)
+{
+   uint16_t i = 0;
+
+   WIZCHIP_CRITICAL_ENTER();
+   WIZCHIP.CS._select();   //M20150601 : Moved here.
+
+#if( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SPI_))
+  for(i = 0; i < len; i++)
+  {
+     //M20160715 : Depricated "M20150601 : Remove _select() to top-side"
+     //            CS should be controlled every SPI frames
+     WIZCHIP.CS._select();
+     WIZCHIP.IF.SPI._write_byte(0xF0);
+     WIZCHIP.IF.SPI._write_byte((((uint16_t)(AddrSel+i)) & 0xFF00) >>  8);
+     WIZCHIP.IF.SPI._write_byte((((uint16_t)(AddrSel+i)) & 0x00FF) >>  0);
+     WIZCHIP.IF.SPI._write_byte(pBuf[i]);    // Data write (write 1byte data)
+     //M20160715 : Depricated "M20150601 : Remove _select() to top-side"
+	  WIZCHIP.CS._deselect();
+  }
+#elif ( (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_DIR_) )
+   for(i = 0; i < len; i++)
+   //M20150601 : Rename the function for integrating with ioLibrary  
+   //  WIZCHIP.IF.BUS._write_byte(AddrSel+i,pBuf[i]);  
+       WIZCHIP.IF.BUS._write_data(AddrSel+i,pBuf[i]);  
+#elif ( (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_INDIR_) )
+   //M20150601 : Rename the function for integrating with ioLibrary  
+   /*
+   WIZCHIP_WRITE(MR,WIZCHIP_READ(MR) | MR_AI);     
+   WIZCHIP.IF.BUS._write_byte(IDM_AR0,(AddrSel & 0xFF00) >>  8);
+   WIZCHIP.IF.BUS._write_byte(IDM_AR1,(AddrSel & 0x00FF));
+   for(i = 0 ; i < len; i++)
+      WIZCHIP.IF.BUS._write_byte(IDM_DR,pBuf[i]);
+   WIZCHIP_WRITE(MR, WIZCHIP_READ(MR) & ~MR_AI);   
+   */
+   setMR(getMR()|MR_AI);     
+   WIZCHIP.IF.BUS._write_data(IDM_AR0,(AddrSel & 0xFF00) >>  8);
+   WIZCHIP.IF.BUS._write_data(IDM_AR1,(AddrSel & 0x00FF));
+   for(i = 0 ; i < len; i++)
+      WIZCHIP.IF.BUS._write_data(IDM_DR,pBuf[i]);
+   setMR(getMR() & ~MR_AI);   
+
+#else
+   #error "Unknown _WIZCHIP_IO_MODE_ in W5100. !!!!"
+#endif
+   
+   WIZCHIP.CS._deselect();  //M20150601 : Moved here.
+   WIZCHIP_CRITICAL_EXIT();
+}
+
+/**
+@brief  This function reads into W5200 memory(Buffer)
+*/ 
+
+void     WIZCHIP_READ_BUF (uint32_t AddrSel, uint8_t* pBuf, uint16_t len)
+{
+   uint16_t i = 0;
+   WIZCHIP_CRITICAL_ENTER();
+   WIZCHIP.CS._select();   //M20150601 : Moved here.
+   
+   #if( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SPI_))
+   for(i = 0; i < len; i++)
+   {
+     //M20160715 : Depricated "M20150601 : Remove _select() to top-side"
+     //            CS should be controlled every SPI frames
+     WIZCHIP.CS._select();
+      WIZCHIP.IF.SPI._write_byte(0x0F);
+      WIZCHIP.IF.SPI._write_byte((uint16_t)((AddrSel+i) & 0xFF00) >>  8);
+      WIZCHIP.IF.SPI._write_byte((uint16_t)((AddrSel+i) & 0x00FF) >>  0);
+      pBuf[i] = WIZCHIP.IF.SPI._read_byte(); 
+     //M20160715 : Depricated "M20150601 : Remove _select() to top-side"
+	  WIZCHIP.CS._deselect();
+   }
+#elif ( (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_DIR_) )
+   for(i = 0 ; i < len; i++)
+   //M20150601 : Rename the function for integrating with ioLibrary  
+   // pBuf[i]	= WIZCHIP.IF.BUS._read_byte(AddrSel+i);
+      pBuf[i]	= WIZCHIP.IF.BUS._read_data(AddrSel+i);
+#elif ( (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_INDIR_) )
+   //M20150601 : Rename the function for integrating with ioLibrary  
+   /*
+   WIZCHIP_WRITE(MR, WIZCHIP_READ(MR) | MR_AI);    
+   WIZCHIP.IF.BUS._write_byte(IDM_AR0,(AddrSel & 0xFF00) >>  8);
+   WIZCHIP.IF.BUS._write_byte(IDM_AR1,(AddrSel & 0x00FF));	
+   for(i = 0 ; i < len; i++)
+      pBuf[i]	= WIZCHIP.IF.BUS._read_byte(IDM_DR);
+   WIZCHIP_WRITE(MR, WIZCHIP_READ(MR) & ~MR_AI); 
+   */
+   setMR(getMR() | MR_AI);
+   WIZCHIP.IF.BUS._write_data(IDM_AR0,(AddrSel & 0xFF00) >>  8);
+   WIZCHIP.IF.BUS._write_data(IDM_AR1,(AddrSel & 0x00FF));	
+   for(i = 0 ; i < len; i++)
+      pBuf[i]	= WIZCHIP.IF.BUS._read_data(IDM_DR);
+   setMR(getMR() & ~MR_AI); 
+   
+#else
+   #error "Unknown _WIZCHIP_IO_MODE_ in W5100. !!!!"
+#endif
+
+   WIZCHIP.CS._deselect();    //M20150601 : Moved Here.
+   WIZCHIP_CRITICAL_EXIT();
+}
+
+///////////////////////////////////
+// Socket N regsiter IO function //
+///////////////////////////////////
+
+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;
+}
+
+/////////////////////////////////////
+// Sn_TXBUF & Sn_RXBUF IO function //
+/////////////////////////////////////
+uint32_t getSn_RxBASE(uint8_t sn)
+{
+   int8_t  i;
+#if ( _WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_DIR_)
+   uint32_t rxbase = _W5100_IO_BASE_ + _WIZCHIP_IO_RXBUF_;
+#else   
+   uint32_t rxbase = _WIZCHIP_IO_RXBUF_;
+#endif   
+   for(i = 0; i < sn; i++)
+      rxbase += getSn_RxMAX(i);
+
+   return rxbase;
+}
+
+uint32_t getSn_TxBASE(uint8_t sn)
+{
+   int8_t  i;
+#if ( _WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_DIR_)
+   uint32_t txbase = _W5100_IO_BASE_ + _WIZCHIP_IO_TXBUF_;
+#else   
+   uint32_t txbase = _WIZCHIP_IO_TXBUF_;
+#endif   
+   for(i = 0; i < sn; i++)
+      txbase += getSn_TxMAX(i);
+   return txbase;
+}
+
+/**
+@brief  This function is being called by send() and sendto() function also. for copy the data form application buffer to Transmite buffer of the chip.
+
+This function read the Tx write pointer register and after copy the data in buffer update the Tx write pointer
+register. User should read upper byte first and lower byte later to get proper value.
+And this function is being used for copy the data form application buffer to Transmite
+buffer of the chip. It calculate the actual physical address where one has to write
+the data in transmite buffer. Here also take care of the condition while it exceed
+the Tx memory uper-bound of socket.
+
+*/
+void wiz_send_data(uint8_t sn, uint8_t *wizdata, uint16_t len)
+{
+  uint16_t ptr;
+  uint16_t size;
+  uint16_t dst_mask;
+  uint16_t dst_ptr;
+
+  ptr = getSn_TX_WR(sn);
+
+  dst_mask = ptr & getSn_TxMASK(sn);
+  dst_ptr = getSn_TxBASE(sn) + dst_mask;
+  
+  if (dst_mask + len > getSn_TxMAX(sn)) 
+  {
+    size = getSn_TxMAX(sn) - dst_mask;
+    WIZCHIP_WRITE_BUF(dst_ptr, wizdata, size);
+    wizdata += size;
+    size = len - size;
+    dst_ptr = getSn_TxBASE(sn);
+    WIZCHIP_WRITE_BUF(dst_ptr, wizdata, size);
+  } 
+  else
+  {
+    WIZCHIP_WRITE_BUF(dst_ptr, wizdata, len);
+  }
+
+  ptr += len;
+
+  setSn_TX_WR(sn, ptr);  
+}
+
+
+/**
+@brief  This function is being called by recv() also. This function is being used for copy the data form Receive buffer of the chip to application buffer.
+
+This function read the Rx read pointer register
+and after copy the data from receive buffer update the Rx write pointer register.
+User should read upper byte first and lower byte later to get proper value.
+It calculate the actual physical address where one has to read
+the data from Receive buffer. Here also take care of the condition while it exceed
+the Rx memory uper-bound of socket.
+*/
+void wiz_recv_data(uint8_t sn, uint8_t *wizdata, uint16_t len)
+{
+  uint16_t ptr;
+  uint16_t size;
+  uint16_t src_mask;
+  uint16_t src_ptr;
+
+  ptr = getSn_RX_RD(sn);
+  
+  src_mask = (uint32_t)ptr & getSn_RxMASK(sn);
+  src_ptr = (getSn_RxBASE(sn) + src_mask);
+
+  
+  if( (src_mask + len) > getSn_RxMAX(sn) ) 
+  {
+    size = getSn_RxMAX(sn) - src_mask;
+    WIZCHIP_READ_BUF((uint32_t)src_ptr, (uint8_t*)wizdata, size);
+    wizdata += size;
+    size = len - size;
+	src_ptr = getSn_RxBASE(sn);
+    WIZCHIP_READ_BUF(src_ptr, (uint8_t*)wizdata, size);
+  } 
+  else
+  {
+    WIZCHIP_READ_BUF(src_ptr, (uint8_t*)wizdata, len);
+  }
+    
+  ptr += len;
+  
+  setSn_RX_RD(sn, ptr);
+}
+
+void wiz_recv_ignore(uint8_t sn, uint16_t len)
+{
+  uint16_t ptr;
+
+  ptr = getSn_RX_RD(sn);
+  
+  ptr += len;
+  setSn_RX_RD(sn,ptr);
+}
+
+#endif

Ethernet/W5200/w5200.c

@@ -0,0 +1,353 @@
+//*****************************************************************************
+//
+//! \file w5200.c
+//! \brief W5200 HAL Interface.
+//! \version 1.0.0
+//! \date 2013/10/21
+//! \par  Revision history
+//!       <2013/10/21> 1st Release
+//! \author MidnightCow
+//! 
+//! 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 "w5200.h"
+
+#if   (_WIZCHIP_ == 5200)
+/**
+@brief  This function writes the data into W5200 registers.
+*/
+void     WIZCHIP_WRITE(uint32_t AddrSel, uint8_t wb )
+{
+	WIZCHIP_CRITICAL_ENTER();
+   WIZCHIP.CS._select();
+
+#if( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SPI_))
+   WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
+   WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
+   WIZCHIP.IF.SPI._write_byte(_W5200_SPI_WRITE_);  // Data write command and Write data length upper
+   WIZCHIP.IF.SPI._write_byte(0x01);  // Write data length lower
+   WIZCHIP.IF.SPI._write_byte(wb);    // Data write (write 1byte data)
+
+#elif ( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_BUS_) )
+
+   //add indirect bus 
+   //M20150601 : Rename the function for integrating with W5300
+   //WIZCHIP.IF.BUS._write_byte(IDM_AR0,(AddrSel & 0x0000FF00) >>  8);
+   //WIZCHIP.IF.BUS._write_byte(IDM_AR1,(AddrSel & 0x000000FF));	
+   //WIZCHIP.IF.BUS._write_byte(IDM_DR,wb);
+   WIZCHIP.IF.BUS._write_data(IDM_AR0,(AddrSel & 0x0000FF00) >>  8);
+   WIZCHIP.IF.BUS._write_data(IDM_AR1,(AddrSel & 0x000000FF));	
+   WIZCHIP.IF.BUS._write_data(IDM_DR,wb);
+
+#else
+   #error "Unknown _WIZCHIP_IO_MODE_ in W5200. !!!"
+#endif
+
+   WIZCHIP.CS._deselect();
+   WIZCHIP_CRITICAL_EXIT();
+}
+/**
+@brief  This function reads the value from W5200 registers.
+*/
+uint8_t  WIZCHIP_READ(uint32_t AddrSel)
+{
+   uint8_t ret;
+
+   WIZCHIP_CRITICAL_ENTER();
+   WIZCHIP.CS._select();
+
+#if( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SPI_))
+   WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
+   WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
+   WIZCHIP.IF.SPI._write_byte(_W5200_SPI_READ_);                             // Read data length upper    
+   WIZCHIP.IF.SPI._write_byte(0x01);                             // Data length lower  
+   ret = WIZCHIP.IF.SPI._read_byte(); 
+
+#elif ( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_BUS_) )
+
+   //add indirect bus
+   //M20150601 : Rename the function for integrating with W5300
+   //WIZCHIP.IF.BUS._write_byte(IDM_AR0,(AddrSel & 0x0000FF00) >>  8);
+   //WIZCHIP.IF.BUS._write_byte(IDM_AR1,(AddrSel & 0x000000FF));	
+   //ret = WIZCHIP.IF.BUS._read_byte(IDM_DR);
+   WIZCHIP.IF.BUS._write_data(IDM_AR0,(AddrSel & 0x0000FF00) >>  8);
+   WIZCHIP.IF.BUS._write_data(IDM_AR1,(AddrSel & 0x000000FF));	
+   ret = WIZCHIP.IF.BUS._read_data(IDM_DR);
+   	
+#else
+   #error "Unknown _WIZCHIP_IO_MODE_ in W5200. !!!"   
+#endif
+
+   WIZCHIP.CS._deselect();
+   WIZCHIP_CRITICAL_EXIT();
+   return ret;
+}
+
+
+/**
+@brief  This function writes into W5200 memory(Buffer)
+*/ 
+void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len)
+{
+   uint16_t i = 0;
+   WIZCHIP_CRITICAL_ENTER();
+   WIZCHIP.CS._select();
+
+#if( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SPI_))
+  WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
+  WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
+  WIZCHIP.IF.SPI._write_byte(_W5200_SPI_WRITE_ | ((len & 0x7F00) >> 8));         // Write data op code and length upper    
+  WIZCHIP.IF.SPI._write_byte((len & 0x00FF) >> 0);         // length lower
+  for(i = 0; i < len; i++)
+     WIZCHIP.IF.SPI._write_byte(pBuf[i]);
+
+#elif ( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_BUS_) )
+   //M20150601 : Rename the function for integrating with W5300
+   /*
+   WIZCHIP_WRITE(MR,WIZCHIP_READ(MR) | MR_AI);     
+   WIZCHIP.IF.BUS._write_byte(IDM_AR0,(AddrSel & 0x0000FF00) >>  8);
+   WIZCHIP.IF.BUS._write_byte(IDM_AR1,(AddrSel & 0x000000FF));
+   for(i = 0 ; i < len; i++)
+      WIZCHIP.IF.BUS._write_byte(IDM_DR,pBuf[i]);
+   WIZCHIP_WRITE(MR, WIZCHIP_READ(MR) & ~MR_AI);   
+   */
+   setMR(getMR() | MR_AI);     
+   WIZCHIP.IF.BUS._write_data(IDM_AR0,(AddrSel & 0x0000FF00) >>  8);
+   WIZCHIP.IF.BUS._write_data(IDM_AR1,(AddrSel & 0x000000FF));
+   for(i = 0 ; i < len; i++)
+      WIZCHIP.IF.BUS._write_data(IDM_DR,pBuf[i]);
+   WIZCHIP_WRITE(MR, WIZCHIP_READ(MR) & ~MR_AI);   
+#else
+   #error "Unknown _WIZCHIP_IO_MODE_ in W5200. !!!!"
+#endif
+
+   WIZCHIP.CS._deselect();
+   WIZCHIP_CRITICAL_EXIT();
+}
+
+/**
+@brief  This function reads into W5200 memory(Buffer)
+*/ 
+void     WIZCHIP_READ_BUF (uint32_t AddrSel, uint8_t* pBuf, uint16_t len)
+{
+   uint16_t i = 0;
+   WIZCHIP_CRITICAL_ENTER();
+   WIZCHIP.CS._select();
+
+#if( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SPI_))
+  WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
+  WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
+  WIZCHIP.IF.SPI._write_byte( _W5200_SPI_READ_ | ((len & 0x7F00) >> 8));         // Write data op code and length upper    
+  WIZCHIP.IF.SPI._write_byte((len & 0x00FF) >> 0);         // length lower
+  for(i = 0; i < len; i++)
+    pBuf[i] = WIZCHIP.IF.SPI._read_byte();
+ 
+#elif ( (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_BUS_) )
+   //M20150601 : Rename the function for integrating with W5300
+   /*
+   WIZCHIP_WRITE(MR, WIZCHIP_READ(MR) | MR_AI);    
+   WIZCHIP.IF.BUS._write_byte(IDM_AR0,(AddrSel & 0x0000FF00) >>  8);
+   WIZCHIP.IF.BUS._write_byte(IDM_AR1,(AddrSel & 0x000000FF));	
+   for(i = 0 ; i < len; i++)
+      pBuf[i]	= WIZCHIP.IF.BUS._read_byte(IDM_DR);
+   WIZCHIP_WRITE(MR, WIZCHIP_READ(MR) & ~MR_AI); 
+   */
+   setMR(getMR() | MR_AI);    
+   WIZCHIP.IF.BUS._write_data(IDM_AR0,(AddrSel & 0x0000FF00) >>  8);
+   WIZCHIP.IF.BUS._write_data(IDM_AR1,(AddrSel & 0x000000FF));	
+   for(i = 0 ; i < len; i++)
+      pBuf[i]	= WIZCHIP.IF.BUS._read_data(IDM_DR);
+   setMR(getMR() & ~MR_AI); 
+#else
+   #error "Unknown _WIZCHIP_IO_MODE_ in W5200. !!!!"
+#endif
+
+   WIZCHIP.CS._deselect();
+   WIZCHIP_CRITICAL_EXIT();
+}
+
+///////////////////////////////////
+// Socket N regsiter IO function //
+///////////////////////////////////
+
+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;
+}
+
+/////////////////////////////////////
+// Sn_TXBUF & Sn_RXBUF IO function //
+/////////////////////////////////////
+
+uint16_t getSn_RxBASE(uint8_t sn)
+{
+   int8_t  i;
+   uint16_t rxbase = _WIZCHIP_IO_RXBUF_;
+   for(i = 0; i < sn; i++)
+      rxbase += getSn_RxMAX(i);
+   return rxbase;
+}
+
+uint16_t getSn_TxBASE(uint8_t sn)
+{
+   int8_t  i;
+   uint16_t txbase = _WIZCHIP_IO_TXBUF_;
+   for(i = 0; i < sn; i++)
+      txbase += getSn_TxMAX(i);
+   return txbase;
+}
+
+/**
+@brief  This function is being called by send() and sendto() function also. for copy the data form application buffer to Transmite buffer of the chip.
+
+This function read the Tx write pointer register and after copy the data in buffer update the Tx write pointer
+register. User should read upper byte first and lower byte later to get proper value.
+And this function is being used for copy the data form application buffer to Transmite
+buffer of the chip. It calculate the actual physical address where one has to write
+the data in transmite buffer. Here also take care of the condition while it exceed
+the Tx memory uper-bound of socket.
+
+*/
+                                        
+void wiz_send_data(uint8_t sn, uint8_t *wizdata, uint16_t len)
+{
+  
+  uint16_t ptr;
+  uint16_t size;
+  uint16_t dst_mask;
+  uint8_t * dst_ptr;
+
+  ptr = getSn_TX_WR(sn);
+
+
+  dst_mask = (uint32_t)ptr & getSn_TxMASK(sn);
+  dst_ptr = (uint8_t*)((uint32_t)getSn_TxBASE(sn) + dst_mask);
+  
+  if (dst_mask + len > getSn_TxMAX(sn)) 
+  {
+    size = getSn_TxMAX(sn) - dst_mask;
+    WIZCHIP_WRITE_BUF((uint32_t)dst_ptr, wizdata, size);
+    wizdata += size;
+    size = len - size;
+    dst_ptr = (uint8_t*)((uint32_t)getSn_TxBASE(sn));
+    WIZCHIP_WRITE_BUF((uint32_t)dst_ptr, wizdata, size);
+  } 
+  else
+  {
+    WIZCHIP_WRITE_BUF((uint32_t)dst_ptr, wizdata, len);
+  }
+
+  ptr += len;
+
+  setSn_TX_WR(sn, ptr);  
+}
+
+
+/**
+@brief  This function is being called by recv() also. This function is being used for copy the data form Receive buffer of the chip to application buffer.
+
+This function read the Rx read pointer register
+and after copy the data from receive buffer update the Rx write pointer register.
+User should read upper byte first and lower byte later to get proper value.
+It calculate the actual physical address where one has to read
+the data from Receive buffer. Here also take care of the condition while it exceed
+the Rx memory uper-bound of socket.
+*/
+void wiz_recv_data(uint8_t sn, uint8_t *wizdata, uint16_t len)
+{
+  uint16_t ptr;
+  uint16_t size;
+  uint16_t src_mask;
+  uint8_t * src_ptr;
+
+  ptr = getSn_RX_RD(sn);
+  
+  src_mask = (uint32_t)ptr & getSn_RxMASK(sn);
+  src_ptr = (uint8_t *)((uint32_t)getSn_RxBASE(sn) + src_mask);
+  
+  if( (src_mask + len) > getSn_RxMAX(sn) ) 
+  {
+    size = getSn_RxMAX(sn) - src_mask;
+    WIZCHIP_READ_BUF((uint32_t)src_ptr, (uint8_t*)wizdata, size);
+    wizdata += size;
+    size = len - size;
+    src_ptr = (uint8_t*)((uint32_t)getSn_RxBASE(sn));
+    WIZCHIP_READ_BUF((uint32_t)src_ptr, (uint8_t*)wizdata, size);
+  } 
+  else
+  {
+    WIZCHIP_READ_BUF((uint32_t)src_ptr, (uint8_t*)wizdata, len);
+  }
+    
+  ptr += len;
+  
+  setSn_RX_RD(sn, ptr);
+}
+
+void wiz_recv_ignore(uint8_t sn, uint16_t len)
+{
+  uint16_t ptr;
+
+  ptr = getSn_RX_RD(sn);
+  
+  ptr += len;
+  setSn_RX_RD(sn,ptr);
+}
+
+#endif

Ethernet/W5300/w5300.c

@@ -0,0 +1,225 @@
+//*****************************************************************************
+//
+//! \file w5300.h
+//! \brief W5300 HAL implement File.
+//! \version 1.0.0
+//! \date 2015/05/01
+//! \par  Revision history
+//!       <2015/05/01> 1st Released for integrating with ioLibrary 
+//!        Download the latest version directly from GitHub. Please visit the our GitHub repository for ioLibrary.
+//!        >> https://github.com/Wiznet/ioLibrary_Driver
+//! \author MidnightCow
+//! \copyright
+//!
+//! Copyright (c)  2015, 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 <stdint.h>
+#include "wizchip_conf.h"
+
+#if _WIZCHIP_ == 5300
+
+   extern uint8_t sock_remained_byte[_WIZCHIP_SOCK_NUM_];
+   extern uint8_t sock_pack_info[_WIZCHIP_SOCK_NUM_];
+
+
+/***********************
+ * Basic I/O  Function *
+ ***********************/
+ 
+void     WIZCHIP_WRITE(uint32_t AddrSel, uint16_t wb )
+{
+   WIZCHIP_CRITICAL_ENTER();
+   WIZCHIP.CS._select();
+
+#if ( (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_DIR_) )
+   #if(_WIZCHIP_IO_BUS_WIDTH_ == 8)
+      WIZCHIP.IF.BUS._write_data(AddrSel,  (uint8_t)(wb>>8));
+      WIZCHIP.IF.BUS._write_data(WIZCHIP_OFFSET_INC(AddrSel,1),(uint8_t)wb);
+   #elif(_WIZCHIP_IO_BUS_WIDTH_ == 16)
+      WIZCHIP.IF.BUS._write_data(AddrSel,  wb);   
+   #else
+      #error "Abnoraml _WIZCHIP_IO_BUS_WIDTH_. Should be 8 or 16"
+   #endif
+#elif ( (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_INDIR_) )
+   #if(_WIZCHIP_IO_BUS_WIDTH_ == 8)
+      WIZCHIP.IF.BUS._write_data(IDM_AR,                      (uint8_t)(AddrSel >> 8));
+      WIZCHIP.IF.BUS._write_data(WIZCHIP_OFFSET_INC(IDM_AR,1),(uint8_t)AddrSel);
+      WIZCHIP.IF.BUS._write_data(IDM_DR,(uint8_t)(wb>>8));
+      WIZCHIP.IF.BUS._write_data(WIZCHIP_OFFSET_INC(IDM_DR,1),(uint8_t)wb);         
+   #elif(_WIZCHIP_IO_BUS_WIDTH_ == 16)
+      WIZCHIP.IF.BUS._write_data(IDM_AR, (uint16_t)AddrSel);
+      WIZCHIP.IF.BUS._write_data(IDM_DR, wb);
+   #else
+      #error "Abnoraml _WIZCHIP_IO_BUS_WIDTH_. Should be 8 or 16"
+   #endif
+#else
+   #error "Unknown _WIZCHIP_IO_MODE_ in W5300. !!!"
+#endif
+
+   WIZCHIP.CS._deselect();
+   WIZCHIP_CRITICAL_EXIT();
+}
+
+uint16_t WIZCHIP_READ(uint32_t AddrSel)
+{
+   uint16_t ret;
+
+   WIZCHIP_CRITICAL_ENTER();
+   WIZCHIP.CS._select();
+
+#if ( (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_DIR_) )
+   #if (_WIZCHIP_IO_BUS_WIDTH_ == 8)
+      ret = (((uint16_t)WIZCHIP.IF.BUS._read_data(AddrSel)) << 8) | 
+            (((uint16_t)WIZCHIP.IF.BUS._read_data(WIZCHIP_OFFSET_INC(AddrSel,1))) & 0x00FF) ;   
+   #elif(_WIZCHIP_IO_BUS_WIDTH_ == 16)
+      ret = WIZCHIP.IF.BUS._read_data(AddrSel);
+   #else
+      #error "Abnoraml _WIZCHIP_IO_BUS_WIDTH_. Should be 8 or 16"
+   #endif         
+#elif ( (_WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_BUS_INDIR_) )
+   #if(_WIZCHIP_IO_BUS_WIDTH_ == 8)
+      WIZCHIP.IF.BUS._write_data(IDM_AR,                      (uint8_t)(AddrSel >> 8));
+      WIZCHIP.IF.BUS._write_data(WIZCHIP_OFFSET_INC(IDM_AR,1),(uint8_t)AddrSel);
+      ret = (((uint16_t)WIZCHIP.IF.BUS._read_data(IDM_DR)) << 8) | 
+            (((uint16_t)WIZCHIP.IF.BUS._read_data(WIZCHIP_OFFSET_INC(IDM_DR,1))) & 0x00FF);
+   #elif(_WIZCHIP_IO_BUS_WIDTH_ == 16)
+      WIZCHIP.IF.BUS._write_data(IDM_AR, (uint16_t)AddrSel);
+      ret = WIZCHIP.IF.BUS._read_data(IDM_DR);
+   #else
+      #error "Abnoraml _WIZCHIP_IO_BUS_WIDTH_. Should be 8 or 16"
+   #endif
+#else
+   #error "Unknown _WIZCHIP_IO_MODE_ in W5300. !!!"
+#endif
+
+   WIZCHIP.CS._deselect();
+   WIZCHIP_CRITICAL_EXIT();
+   return ret;
+}
+
+
+void setTMSR(uint8_t sn,uint8_t tmsr)
+{
+   uint16_t tmem;
+   tmem = WIZCHIP_READ(WIZCHIP_OFFSET_INC(TMS01R, (sn & 0xFE)));
+   if(sn & 0x01)  tmem = (tmem & 0xFF00) | (((uint16_t)tmsr ) & 0x00FF) ;
+   else tmem =  (tmem & 0x00FF) | (((uint16_t)tmsr) << 8) ;
+   WIZCHIP_WRITE(WIZCHIP_OFFSET_INC(TMS01R, (sn & 0xFE)),tmem);
+}
+   
+uint8_t getTMSR(uint8_t sn)
+{
+   if(sn & 0x01)
+      return (uint8_t)(WIZCHIP_READ(WIZCHIP_OFFSET_INC(TMS01R, (sn & 0xFE))) & 0x00FF);
+   return (uint8_t)(WIZCHIP_READ(WIZCHIP_OFFSET_INC(TMS01R, (sn & 0xFE))) >> 8);
+}
+
+void setRMSR(uint8_t sn,uint8_t rmsr)
+{
+   uint16_t rmem;
+   rmem = WIZCHIP_READ(WIZCHIP_OFFSET_INC(RMS01R, (sn & 0xFE)));
+   if(sn & 0x01)  rmem = (rmem & 0xFF00) | (((uint16_t)rmsr ) & 0x00FF) ;
+   else rmem =  (rmem & 0x00FF) | (((uint16_t)rmsr) << 8) ;
+   WIZCHIP_WRITE(WIZCHIP_OFFSET_INC(RMS01R, (sn & 0xFE)),rmem);
+}
+   
+uint8_t getRMSR(uint8_t sn)
+{
+   if(sn & 0x01)
+      return (uint8_t)(WIZCHIP_READ(WIZCHIP_OFFSET_INC(RMS01R, (sn & 0xFE))) & 0x00FF);
+   return (uint8_t)(WIZCHIP_READ(WIZCHIP_OFFSET_INC(RMS01R, (sn & 0xFE))) >> 8);
+}
+
+uint32_t getSn_TX_FSR(uint8_t sn)
+{
+   uint32_t free_tx_size=0;
+   uint32_t free_tx_size1=1;
+   while(1)
+   {
+      free_tx_size = (((uint32_t)WIZCHIP_READ(Sn_TX_FSR(sn))) << 16) | 
+                     (((uint32_t)WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_TX_FSR(sn),2))) & 0x0000FFFF);                           // read
+      if(free_tx_size == free_tx_size1) break;  // if first == sencond, Sn_TX_FSR value is valid.                                                          
+      free_tx_size1 = free_tx_size;             // save second value into first                                                   
+   }                                                                       
+   return free_tx_size;                                                    
+}                                                                          
+
+uint32_t getSn_RX_RSR(uint8_t sn)
+{
+   uint32_t received_rx_size=0;
+   uint32_t received_rx_size1=1;
+   while(1)
+   {
+      received_rx_size = (((uint32_t)WIZCHIP_READ(Sn_RX_RSR(sn))) << 16) | 
+                         (((uint32_t)WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_RX_RSR(sn),2))) & 0x0000FFFF);
+      if(received_rx_size == received_rx_size1) break;                                                                         
+      received_rx_size1 = received_rx_size;                                      // if first == sencond, Sn_RX_RSR value is valid.
+   }                                                                             // save second value into first                
+   return received_rx_size + (uint32_t)((sock_pack_info[sn] & 0x02) ? 1 : 0);   
+}
+
+
+void wiz_send_data(uint8_t sn, uint8_t *wizdata, uint32_t len)
+{
+   uint32_t i = 0;
+   if(len == 0)  return;
+   
+   for(i = 0; i < len ; i += 2)
+      setSn_TX_FIFOR(sn, (((uint16_t)wizdata[i]) << 8) | (((uint16_t)wizdata[i+1]) & 0x00FF))
+}
+
+void wiz_recv_data(uint8_t sn, uint8_t *wizdata, uint32_t len)
+{
+   uint16_t rd = 0;
+   uint32_t i = 0;
+   
+   if(len == 0) return;
+      
+   for(i = 0; i < len; i++)
+   {
+      if((i & 0x01)==0)
+      {
+         rd = getSn_RX_FIFOR(sn);
+         wizdata[i]   = (uint8_t)(rd >> 8);
+      }
+      else  wizdata[i] = (uint8_t)rd;  // For checking the memory access violation
+   }
+   sock_remained_byte[sn] = (uint8_t)rd; // back up the remaind fifo byte.
+}
+
+void wiz_recv_ignore(uint8_t sn, uint32_t len)
+{
+   uint32_t i = 0;
+   for(i = 0; i < len ; i += 2) getSn_RX_FIFOR(sn);
+}
+
+
+#endif

Ethernet/W5500/w5500.c

@@ -59,6 +59,7 @@
 #define _W5500_SPI_FDM_OP_LEN2_     0x02
 #define _W5500_SPI_FDM_OP_LEN4_     0x03
 
+#if   (_WIZCHIP_ == 5500)
 ////////////////////////////////////////////////////
 
 uint8_t  WIZCHIP_READ(uint32_t AddrSel)
@@ -73,7 +74,7 @@ uint8_t  WIZCHIP_READ(uint32_t AddrSel)
 
    if(!WIZCHIP.IF.SPI._read_burst || !WIZCHIP.IF.SPI._write_burst) 	// byte operation
    {
-	   	WIZCHIP.IF.SPI._write_byte((AddrSel & 0x00FF0000) >> 16);
+	   WIZCHIP.IF.SPI._write_byte((AddrSel & 0x00FF0000) >> 16);
 		WIZCHIP.IF.SPI._write_byte((AddrSel & 0x0000FF00) >>  8);
 		WIZCHIP.IF.SPI._write_byte((AddrSel & 0x000000FF) >>  0);
    }
@@ -263,3 +264,4 @@ void wiz_recv_ignore(uint8_t sn, uint16_t len)
    setSn_RX_RD(sn,ptr);
 }
 
+#endif

Ethernet/W5500/w5500.h

@@ -43,12 +43,18 @@
 //
 //*****************************************************************************
 
+//
+
 #ifndef  _W5500_H_
 #define  _W5500_H_
 
 #include <stdint.h>
 #include "wizchip_conf.h"
 
+/// @cond DOXY_APPLY_CODE
+#if   (_WIZCHIP_ == 5500)
+/// @endcond
+
 #define _W5500_IO_BASE_              0x00000000
 
 #define _W5500_SPI_READ_			   (0x00 << 2) //< SPI interface Read operation in Control Phase
@@ -147,7 +153,7 @@
  * @sa MR : Mode register.
  * @sa GAR, SUBR, SHAR, SIPR
  * @sa INTLEVEL, IR, IMR, SIR, SIMR : Interrupt.
- * @sa RTR, RCR : Data retransmission.
+ * @sa _RTR_, _RCR_ : Data retransmission.
  * @sa PTIMER, PMAGIC, PHAR, PSID, PMRU : PPPoE.
  * @sa UIPR, UPORTR : ICMP message.
  * @sa PHYCFGR, VERSIONR : etc.
@@ -200,9 +206,9 @@
  * 		<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_WOL       	: Wake on LAN
- * - \ref MR_PB         	: Ping block
+ * - \ref MR_PB         : Ping block
- * - \ref MR_PPPOE      	: PPPoE mode
+ * - \ref MR_PPPOE      : PPPoE mode
  * - \ref MR_FARP			: Force ARP mode
  */
 #define MR                 (_W5500_IO_BASE_ + (0x0000 << 8) + (WIZCHIP_CREG_BLOCK << 3))
@@ -262,10 +268,10 @@
 /**
  * @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.
+ * @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,
+ * 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
+ * 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.
+ * 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>
@@ -275,7 +281,9 @@
  * - \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))
+//M20150401 : Rename SYMBOE ( Re-define error in a compile) 
+//#define IMR                (_W5500_IO_BASE_ + (0x0016 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+#define _IMR_                (_W5500_IO_BASE_ + (0x0016 << 8) + (WIZCHIP_CREG_BLOCK << 3))
 
 /**
  * @ingroup Common_register_group
@@ -297,20 +305,24 @@
 /**
  * @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
+ * @details @ref _RTR_ configures the retransmission timeout period. The unit of timeout period is 100us and the default of @ref _RTR_ is x07D0.
- * And so the default timeout period is 200ms(100us X 2000). During the time configured by @ref RTR, W5500 waits for the peer response
+ * 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.
+ * 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))
+//M20150401 : Rename SYMBOE ( Re-define error in a compile)  
+//#define RTR                (_W5500_IO_BASE_ + (0x0019 << 8) + (WIZCHIP_CREG_BLOCK << 3))
+#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.
+ * @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] = .
+ * When retransmission occurs as many as ref _RCR_+1 Timeout interrupt is issued (@ref Sn_IR_TIMEOUT = '1').
  */
-#define RCR                (_W5500_IO_BASE_ + (0x001B << 8) + (WIZCHIP_CREG_BLOCK << 3))
+//M20150401 : Rename SYMBOE ( Re-define error in a compile)
+//#define RCR                (_W5500_IO_BASE_ + (0x001B << 8) + (WIZCHIP_CREG_BLOCK << 3))  
+#define _RCR_                (_W5500_IO_BASE_ + (0x001B << 8) + (WIZCHIP_CREG_BLOCK << 3))
 
 /**
  * @ingroup Common_register_group
@@ -351,7 +363,7 @@
  * @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
+ * which socket is not open and @ref IR_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))
@@ -360,7 +372,7 @@
  * @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
+ * which socket is not open and @ref IR_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))
@@ -488,7 +500,7 @@
  * @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.
+ * It is valid when Socket n is used in TCP/UDP mode. It should be set before OPEN command is ordered.
  */
 #define Sn_PORT(N)         (_W5500_IO_BASE_ + (0x0004 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
 
@@ -504,8 +516,8 @@
  * @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 <EFBFBD>TCP serverbefore CONNECT command.
+ * In TCP client mode, it configures an IP address of TCP serverbefore CONNECT command.
- * In TCP server mode, it indicates an IP address of <EFBFBD>TCP clientafter successfully establishing connection.
+ * 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))
@@ -514,8 +526,8 @@
  * @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 <EFBFBD>TCP clientmode, it configures the listen port number of <EFBFBD>TCP serverbefore CONNECT command.
+ * In TCP clientmode, it configures the listen port number of TCP serverbefore CONNECT command.
- * In <EFBFBD>TCP Servermode, it indicates the port number of TCP client after successfully establishing connection.
+ * 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))
@@ -819,7 +831,7 @@
  * 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.
+ * When this bit is  It sends the ACK packet after waiting for the timeout time configured by @ref _RTR_.
  */
 #define Sn_MR_ND                     0x20
 
@@ -838,7 +850,7 @@
  */
 #define Sn_MR_MACRAW                 0x04
 
-//#define Sn_MR_IPRAW                  0x03     /**< IP LAYER RAW SOCK */
+#define Sn_MR_IPRAW                  0x03     /**< IP LAYER RAW SOCK */
 
 /**
  * @brief UDP
@@ -916,46 +928,46 @@
  * 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_CLOSE  (000)</td> <td></td>         	   		 </tr>
- *   <tr>  <td>Sn_MR_TCP  (001</td> <td>SOCK_INIT (0x13)</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>Sn_MR_UDP  (010)</td>  <td>SOCK_UDP (0x22)</td>  		 </tr>
- *   <tr>  <td>S0_MR_MACRAW  (100</td>  <td>SOCK_MACRAW (0x02)</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).
+ * @details This is valid only in TCP mode (\ref Sn_MR(P3:P0) = \ref Sn_MR_TCP).
- * In this mode, Socket n operates as a <EFBFBD>TCP serverand waits for  connection-request (SYN packet) from any <EFBFBD>TCP client
+ * 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.
+ * The @ref Sn_SR changes the state from \ref SOCK_INIT to \ref SOCKET_LISTEN.
- * When a <EFBFBD>TCP clientconnection request is successfully established,
+ * 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 
+ * the @ref Sn_SR changes from SOCK_LISTEN to SOCK_ESTABLISHED and the @ref Sn_IR(0) becomes 
- * But when a <EFBFBD>TCP clientconnection request is failed, Sn_IR(3) becomes and the status of @ref Sn_SR changes to SOCK_CLOSED.
+ * But when a TCP clientconnection request is failed, @ref 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).
+ * @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>
+ * @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
+ * @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.
+ * Otherwise, TCPTO occurs (\ref Sn_IR(3)='1') and then @ref Sn_SR is changed to @ref SOCK_CLOSED.
  * @note Valid only in TCP mode.
  */
 #define Sn_CR_DISCON                 0x08
@@ -1034,24 +1046,24 @@
 /* Sn_SR values */
 /**
  * @brief Closed
- * @details This indicates that Socket n is released.\N
+ * @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
+ * @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
+ * It is changed to @ref SOCK_INIT when @ref Sn_MR(P[3:0]) = 001 and 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
+ * @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) = .
+ * Otherwise it will change to @ref SOCK_CLOSED after TCPTO @ref Sn_IR(TIMEOUT) = '1') is occurred.
  */
 #define SOCK_LISTEN                  0x14
 
@@ -1060,7 +1072,7 @@
  * @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.
+ * Otherwise, it changes to @ref SOCK_CLOSED after TCPTO (@ref Sn_IR[TIMEOUT] = '1') is occurred.
  */
 #define SOCK_SYNSENT                 0x15
 
@@ -1068,14 +1080,14 @@
  * @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] = .
+ * If not, it changes to @ref SOCK_CLOSED after timeout (@ref Sn_IR[TIMEOUT] = '1') is occurred.
  */
 #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
+ * 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.
  */
@@ -1116,19 +1128,19 @@
 /**
  * @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] = .
+ * It changes to @ref SOCK_CLOSED when Socket n received the response successfully, or when timeout(@ref Sn_IR[TIMEOUT] = '1') is occurred.
  */
 #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
+ * @details This indicates Socket n is opened in UDP mode(@ref 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
+ * It changes to SOCK_UDP when @ref Sn_MR(P[3:0]) = '010' and @ref Sn_CR_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 */
+#define SOCK_IPRAW                   0x32     /**< IP raw mode socket */
 
 /**
  * @brief MAC raw mode socket
@@ -1169,6 +1181,7 @@
 #ifdef _exit
 #undef _exit
 #endif
+
 /**
  * @brief Exit a critical section
  *
@@ -1180,11 +1193,9 @@
  * @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 //
 ////////////////////////
@@ -1337,8 +1348,13 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
  * @return uint16_t. Value of @ref INTLEVEL register.
  * @sa setINTLEVEL()
  */
+//M20150401 : Type explict declaration
+/*
 #define getINTLEVEL() \
 		((WIZCHIP_READ(INTLEVEL) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(INTLEVEL,1)))
+*/
+#define getINTLEVEL() \
+		(((uint16_t)WIZCHIP_READ(INTLEVEL) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(INTLEVEL,1)))
 
 /**
  * @ingroup Common_register_access_function
@@ -1359,22 +1375,21 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
 		(WIZCHIP_READ(IR) & 0xF0)
 /**
  * @ingroup Common_register_access_function
- * @brief Set @ref IMR register
+ * @brief Set @ref _IMR_ register
- * @param (uint8_t)imr Value to set @ref IMR register.
+ * @param (uint8_t)imr Value to set @ref _IMR_ register.
  * @sa getIMR()
  */
 #define setIMR(imr) \
-		WIZCHIP_WRITE(IMR, imr)
+		WIZCHIP_WRITE(_IMR_, imr)
 
 /**
  * @ingroup Common_register_access_function
- * @brief Get @ref IMR register
+ * @brief Get @ref _IMR_ register
- * @return uint8_t. Value of @ref IMR register.
+ * @return uint8_t. Value of @ref _IMR_ register.
  * @sa setIMR()
  */
 #define getIMR() \
-		WIZCHIP_READ(IMR)
+		WIZCHIP_READ(_IMR_)
-
 
 /**
  * @ingroup Common_register_access_function
@@ -1413,41 +1428,47 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
 
 /**
  * @ingroup Common_register_access_function
- * @brief Set @ref RTR register
+ * @brief Set @ref _RTR_ register
- * @param (uint16_t)rtr Value to 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(_RTR_,   (uint8_t)(rtr >> 8)); \
-		WIZCHIP_WRITE(WIZCHIP_OFFSET_INC(RTR,1), (uint8_t) rtr); \
+		WIZCHIP_WRITE(WIZCHIP_OFFSET_INC(_RTR_,1), (uint8_t) rtr); \
 	}
 
 /**
  * @ingroup Common_register_access_function
- * @brief Get @ref RTR register
+ * @brief Get @ref _RTR_ register
- * @return uint16_t. Value of @ref RTR register.
+ * @return uint16_t. Value of @ref _RTR_ register.
  * @sa setRTR()
  */
+//M20150401 : Type explict declaration
+/*
 #define getRTR() \
-		((WIZCHIP_READ(RTR) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(RTR,1)))
+		((WIZCHIP_READ(_RTR_) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(_RTR_,1)))
+*/
+#define getRTR() \
+		(((uint16_t)WIZCHIP_READ(_RTR_) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(_RTR_,1)))
+
 
 /**
  * @ingroup Common_register_access_function
- * @brief Set @ref RCR register
+ * @brief Set @ref _RCR_ register
- * @param (uint8_t)rcr Value to set @ref RCR register.
+ * @param (uint8_t)rcr Value to set @ref _RCR_ register.
  * @sa getRCR()
  */
 #define setRCR(rcr) \
-		WIZCHIP_WRITE(RCR, rcr)
+		WIZCHIP_WRITE(_RCR_, rcr)
 
 /**
  * @ingroup Common_register_access_function
- * @brief Get @ref RCR register
+ * @brief Get @ref _RCR_ register
- * @return uint8_t. Value of @ref RCR register.
+ * @return uint8_t. Value of @ref _RCR_ register.
  * @sa setRCR()
  */
 #define getRCR() \
-		WIZCHIP_READ(RCR)
+		WIZCHIP_READ(_RCR_)
 
 //================================================== test done ===========================================================
 
@@ -1489,7 +1510,7 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
 
 /**
  * @ingroup Common_register_access_function
- * @brief Set PHAR address
+ * @brief Set @ref PHAR address
  * @param (uint8_t*)phar Pointer variable to set PPP destination MAC register address. It should be allocated 6 bytes.
  * @sa getPHAR()
  */
@@ -1498,7 +1519,7 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
 
 /**
  * @ingroup Common_register_access_function
- * @brief Get local IP address
+ * @brief Get @ref PHAR address
  * @param (uint8_t*)phar Pointer variable to PPP destination MAC register address. It should be allocated 6 bytes.
  * @sa setPHAR()
  */
@@ -1523,8 +1544,13 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
  * @sa setPSID()
  */
 //uint16_t getPSID(void);
+//M20150401 : Type explict declaration
+/*
 #define getPSID() \
 		((WIZCHIP_READ(PSID) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(PSID,1)))
+*/
+#define getPSID() \
+		(((uint16_t)WIZCHIP_READ(PSID) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(PSID,1)))
 
 /**
  * @ingroup Common_register_access_function
@@ -1543,24 +1569,39 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
  * @return uint16_t. Value of @ref PMRU register.
  * @sa setPMRU()
  */
+//M20150401 : Type explict declaration
+/*
 #define getPMRU() \
 		((WIZCHIP_READ(PMRU) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(PMRU,1)))
+*/
+#define getPMRU() \
+		(((uint16_t)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.
  */
+//M20150401 : Size Error of UIPR (6 -> 4)
+/*
 #define getUIPR(uipr) \
 		WIZCHIP_READ_BUF(UIPR,uipr,6)
+*/
+#define getUIPR(uipr) \
+		WIZCHIP_READ_BUF(UIPR,uipr,4)
 
 /**
  * @ingroup Common_register_access_function
  * @brief Get @ref UPORTR register
  * @return uint16_t. Value of @ref UPORTR register.
  */
+//M20150401 : Type explict declaration 
+/*
 #define getUPORTR() \
 	((WIZCHIP_READ(UPORTR) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(UPORTR,1)))
+*/
+#define getUPORTR() \
+	(((uint16_t)WIZCHIP_READ(UPORTR) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(UPORTR,1)))	
 
 /**
  * @ingroup Common_register_access_function
@@ -1701,8 +1742,13 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
  * @return uint16_t. Value of @ref Sn_PORT.
  * @sa setSn_PORT()
  */
+//M20150401 : Type explict declaration 
+/*
 #define getSn_PORT(sn) \
 		((WIZCHIP_READ(Sn_PORT(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_PORT(sn),1)))
+*/
+#define getSn_PORT(sn) \
+		(((uint16_t)WIZCHIP_READ(Sn_PORT(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_PORT(sn),1)))		
 
 /**
  * @ingroup Socket_register_access_function
@@ -1739,7 +1785,7 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
  * @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()
+ * @sa setSn_DIPR()
  */
 #define getSn_DIPR(sn, dipr) \
 		WIZCHIP_READ_BUF(Sn_DIPR(sn), dipr, 4)
@@ -1763,8 +1809,13 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
  * @return uint16_t. Value of @ref Sn_DPORT.
  * @sa setSn_DPORT()
  */
+//M20150401 : Type explict declaration
+/*
 #define getSn_DPORT(sn) \
 		((WIZCHIP_READ(Sn_DPORT(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_DPORT(sn),1)))
+*/
+#define getSn_DPORT(sn) \
+		(((uint16_t)WIZCHIP_READ(Sn_DPORT(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_DPORT(sn),1)))		
 
 /**
  * @ingroup Socket_register_access_function
@@ -1785,8 +1836,13 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
  * @return uint16_t. Value of @ref Sn_MSSR.
  * @sa setSn_MSSR()
  */
+//M20150401 : Type explict declaration
+/*
 #define getSn_MSSR(sn) \
 		((WIZCHIP_READ(Sn_MSSR(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_MSSR(sn),1)))
+*/
+#define getSn_MSSR(sn) \
+		(((uint16_t)WIZCHIP_READ(Sn_MSSR(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_MSSR(sn),1)))		
 
 /**
  * @ingroup Socket_register_access_function
@@ -1885,8 +1941,13 @@ uint16_t getSn_TX_FSR(uint8_t sn);
  * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
  * @return uint16_t. Value of @ref Sn_TX_RD.
  */
+//M20150401 : Type explict declaration
+/*
 #define getSn_TX_RD(sn) \
 		((WIZCHIP_READ(Sn_TX_RD(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_TX_RD(sn),1)))
+*/
+#define getSn_TX_RD(sn) \
+		(((uint16_t)WIZCHIP_READ(Sn_TX_RD(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_TX_RD(sn),1)))		
 
 /**
  * @ingroup Socket_register_access_function
@@ -1907,8 +1968,13 @@ uint16_t getSn_TX_FSR(uint8_t sn);
  * @return uint16_t. Value of @ref Sn_TX_WR.
  * @sa setSn_TX_WR()
  */
+//M20150401 : Type explict declaration
+/*
 #define getSn_TX_WR(sn) \
 		((WIZCHIP_READ(Sn_TX_WR(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_TX_WR(sn),1)))
+*/
+#define getSn_TX_WR(sn) \
+		(((uint16_t)WIZCHIP_READ(Sn_TX_WR(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_TX_WR(sn),1)))		
 
 
 /**
@@ -1936,11 +2002,16 @@ uint16_t getSn_RX_RSR(uint8_t sn);
  * @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.
+ * @return uint16_t. Value of @ref Sn_RX_RD.
  * @sa setSn_RX_RD()
  */
+//M20150401 : Type explict declaration 
+/*
 #define getSn_RX_RD(sn) \
 		((WIZCHIP_READ(Sn_RX_RD(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_RX_RD(sn),1)))
+*/		
+#define getSn_RX_RD(sn) \
+		(((uint16_t)WIZCHIP_READ(Sn_RX_RD(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_RX_RD(sn),1)))		
 
 /**
  * @ingroup Socket_register_access_function
@@ -1948,9 +2019,13 @@ uint16_t getSn_RX_RSR(uint8_t sn);
  * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
  * @return uint16_t. Value of @ref Sn_RX_WR.
  */
+//M20150401 : Type explict declaration
+/*  
 #define getSn_RX_WR(sn) \
 		((WIZCHIP_READ(Sn_RX_WR(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_RX_WR(sn),1)))
-
+*/		
+#define getSn_RX_WR(sn) \
+		(((uint16_t)WIZCHIP_READ(Sn_RX_WR(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_RX_WR(sn),1)))		
 
 /**
  * @ingroup Socket_register_access_function
@@ -1971,8 +2046,13 @@ uint16_t getSn_RX_RSR(uint8_t sn);
  * @return uint16_t. Value of @ref Sn_FRAG.
  * @sa setSn_FRAG()
  */
+//M20150401 : Type explict declaration  
+/*
 #define getSn_FRAG(sn) \
 		((WIZCHIP_READ(Sn_FRAG(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_FRAG(sn),1)))
+*/		
+#define getSn_FRAG(sn) \
+      (((uint16_t)WIZCHIP_READ(Sn_FRAG(sn)) << 8) + WIZCHIP_READ(WIZCHIP_OFFSET_INC(Sn_FRAG(sn),1)))		
 
 /**
  * @ingroup Socket_register_access_function
@@ -2000,21 +2080,32 @@ uint16_t getSn_RX_RSR(uint8_t sn);
 // Sn_TXBUF & Sn_RXBUF IO function //
 /////////////////////////////////////
 /**  
+ * @brief Socket_register_access_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.
  */
+//M20150401 : Type explict declaration 
+/*
 #define getSn_RxMAX(sn) \
 		(getSn_RXBUF_SIZE(sn) << 10)
+*/		
+#define getSn_RxMAX(sn) \
+		(((uint16_t)getSn_RXBUF_SIZE(sn)) << 10)		
 
 /**  
+ * @brief Socket_register_access_function
  * @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);
+//M20150401 : Type explict declaration 
+/*
 #define getSn_TxMAX(sn) \
 		(getSn_TXBUF_SIZE(sn) << 10)
+*/		
+#define getSn_TxMAX(sn) \
+		(((uint16_t)getSn_TXBUF_SIZE(sn)) << 10)		
 
 /**
  * @ingroup Basic_IO_function
@@ -2025,7 +2116,6 @@ uint16_t getSn_RX_RSR(uint8_t sn);
  * 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
@@ -2042,7 +2132,6 @@ void wiz_send_data(uint8_t sn, uint8_t *wizdata, uint16_t len);
  * 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
@@ -2059,4 +2148,8 @@ void wiz_recv_data(uint8_t sn, uint8_t *wizdata, uint16_t len);
  */
 void wiz_recv_ignore(uint8_t sn, uint16_t len);
 
+/// @cond DOXY_APPLY_CODE
+#endif
+/// @endcond
+
 #endif   // _W5500_H_

Ethernet/socket.c

@@ -55,18 +55,31 @@
 //*****************************************************************************
 #include "socket.h"
 
-#define SOCK_ANY_PORT_NUM  0xC000;
+//M20150401 : Typing Error
+//#define SOCK_ANY_PORT_NUM  0xC000;
+#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,};
+
+//M20150601 : For extern decleation
+//static uint8_t  sock_pack_info[_WIZCHIP_SOCK_NUM_] = {0,};
+uint8_t  sock_pack_info[_WIZCHIP_SOCK_NUM_] = {0,};
+//
 
 #if _WIZCHIP_ == 5200
    static uint16_t sock_next_rd[_WIZCHIP_SOCK_NUM_] ={0,};
 #endif
 
+//A20150601 : For integrating with W5300
+#if _WIZCHIP_ == 5300
+   uint8_t sock_remained_byte[_WIZCHIP_SOCK_NUM_] = {0,}; // set by wiz_recv_data()
+#endif
+
+
 #define CHECK_SOCKNUM()   \
    do{                    \
       if(sn > _WIZCHIP_SOCK_NUM_) return SOCKERR_SOCKNUM;   \
@@ -95,6 +108,16 @@ int8_t socket(uint8_t sn, uint8_t protocol, uint16_t port, uint8_t flag)
 	switch(protocol)
 	{
       case Sn_MR_TCP :
+         {
+            //M20150601 : Fixed the warning - taddr will never be NULL
+		    /*
+            uint8_t taddr[4];
+            getSIPR(taddr);
+            */
+            uint32_t taddr;
+            getSIPR((uint8_t*)&taddr);
+            if(taddr == 0) return SOCKERR_SOCKINIT;
+         }
       case Sn_MR_UDP :
       case Sn_MR_MACRAW :
          break;
@@ -106,7 +129,9 @@ int8_t socket(uint8_t sn, uint8_t protocol, uint16_t port, uint8_t flag)
       default :
          return SOCKERR_SOCKMODE;
 	}
-	if((flag & 0x06) != 0) return SOCKERR_SOCKFLAG;
+	//M20150601 : For SF_TCP_ALIGN & W5300
+	//if((flag & 0x06) != 0) return SOCKERR_SOCKFLAG;
+	if((flag & 0x04) != 0) return SOCKERR_SOCKFLAG;
 #if _WIZCHIP_ == 5200
    if(flag & 0x10) return SOCKERR_SOCKFLAG;
 #endif
@@ -116,7 +141,13 @@ int8_t socket(uint8_t sn, uint8_t protocol, uint16_t port, uint8_t flag)
    	switch(protocol)
    	{
    	   case Sn_MR_TCP:
-   	      if((flag & (SF_TCP_NODELAY|SF_IO_NONBLOCK))==0) return SOCKERR_SOCKFLAG;
+   		  //M20150601 :  For SF_TCP_ALIGN & W5300
+          #if _WIZCHIP_ == 5300
+   		     if((flag & (SF_TCP_NODELAY|SF_IO_NONBLOCK|SF_TCP_ALIGN))==0) return SOCKERR_SOCKFLAG;
+          #else
+   		     if((flag & (SF_TCP_NODELAY|SF_IO_NONBLOCK))==0) return SOCKERR_SOCKFLAG;
+          #endif
+
    	      break;
    	   case Sn_MR_UDP:
    	      if(flag & SF_IGMP_VER2)
@@ -135,7 +166,12 @@ int8_t socket(uint8_t sn, uint8_t protocol, uint16_t port, uint8_t flag)
    	}
    }
 	close(sn);
-	setSn_MR(sn, (protocol | (flag & 0xF0)));
+	//M20150601
+	#if _WIZCHIP_ == 5300
+	   setSn_MR(sn, ((uint16_t)(protocol | (flag & 0xF0))) | (((uint16_t)(flag & 0x02)) << 7) );
+    #else
+	   setSn_MR(sn, (protocol | (flag & 0xF0)));
+    #endif
 	if(!port)
 	{
 	   port = sock_any_port++;
@@ -144,10 +180,16 @@ int8_t socket(uint8_t sn, uint8_t protocol, uint16_t port, uint8_t flag)
    setSn_PORT(sn,port);	
    setSn_CR(sn,Sn_CR_OPEN);
    while(getSn_CR(sn));
+   //A20150401 : For release the previous sock_io_mode
+   sock_io_mode &= ~(1 <<sn);
+   //
 	sock_io_mode |= ((flag & SF_IO_NONBLOCK) << sn);   
    sock_is_sending &= ~(1<<sn);
    sock_remained_size[sn] = 0;
-   sock_pack_info[sn] = 0;
+   //M20150601 : repalce 0 with PACK_COMPLETED
+   //sock_pack_info[sn] = 0;
+   sock_pack_info[sn] = PACK_COMPLETED;
+   //
    while(getSn_SR(sn) == SOCK_CLOSED);
    return (int8_t)sn;
 }	   
@@ -155,12 +197,39 @@ int8_t socket(uint8_t sn, uint8_t protocol, uint16_t port, uint8_t flag)
 int8_t close(uint8_t sn)
 {
 	CHECK_SOCKNUM();
-	
+//A20160426 : Applied the erratum 1 of W5300
+#if   (_WIZCHIP_ == 5300) 
+   //M20160503 : Wrong socket parameter. s -> sn 
+   //if( ((getSn_MR(s)& 0x0F) == Sn_MR_TCP) && (getSn_TX_FSR(s) != getSn_TxMAX(s)) ) 
+   if( ((getSn_MR(sn)& 0x0F) == Sn_MR_TCP) && (getSn_TX_FSR(sn) != getSn_TxMAX(sn)) ) 
+   { 
+      uint8 destip[4] = {0, 0, 0, 1};
+      // TODO
+      // You can wait for completing to sending data;
+      // wait about 1 second;
+      // if you have completed to send data, skip the code of erratum 1
+      // ex> wait_1s();
+      //     if (getSn_TX_FSR(s) == getSn_TxMAX(s)) continue;
+      // 
+      //M20160503 : The socket() of close() calls close() itself again. It occures a infinite loop - close()->socket()->close()->socket()-> ~
+      //socket(s,Sn_MR_UDP,0x3000,0);
+      //sendto(s,destip,1,destip,0x3000); // send the dummy data to an unknown destination(0.0.0.1).
+      setSn_MR(sn,Sn_MR_UDP);
+      setSn_PORTR(sn, 0x3000);
+      setSn_CR(sn,Sn_CR_OPEN);
+      while(getSn_CR(sn) != 0);
+      while(getSn_SR(sn) != SOCK_UDP);
+      sendto(sn,destip,1,destip,0x3000); // send the dummy data to an unknown destination(0.0.0.1).
+   };   
+#endif 
 	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);
+	//A20150401 : Release the sock_io_mode of socket n.
+	sock_io_mode &= ~(1<<sn);
+	//
 	sock_is_sending &= ~(1<<sn);
 	sock_remained_size[sn] = 0;
 	sock_pack_info[sn] = 0;
@@ -177,11 +246,8 @@ int8_t listen(uint8_t sn)
 	while(getSn_CR(sn));
    while(getSn_SR(sn) != SOCK_LISTEN)
    {
-      if(getSn_CR(sn) == SOCK_CLOSED)
-      {
          close(sn);
          return SOCKERR_SOCKCLOSED;
-      }
    }
    return SOCK_OK;
 }
@@ -207,9 +273,6 @@ int8_t connect(uint8_t sn, uint8_t * addr, uint16_t port)
 	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;
@@ -218,9 +281,6 @@ int8_t connect(uint8_t sn, uint8_t * addr, uint16_t port)
 		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;
 		}
 
@@ -229,9 +289,6 @@ int8_t connect(uint8_t sn, uint8_t * addr, uint16_t port)
 			return SOCKERR_SOCKCLOSED;
 		}
 	}
-   #if _WIZCHIP_ == 5200   // for W5200 ARP errata 
-      setSUBR((uint8_t*)"\x00\x00\x00\x00");
-   #endif
    
    return SOCK_OK;
 }
@@ -272,12 +329,14 @@ int32_t send(uint8_t sn, uint8_t * buf, uint16_t len)
       if(tmp & Sn_IR_SENDOK)
       {
          setSn_IR(sn, Sn_IR_SENDOK);
-         #if _WZICHIP_ == 5200
+         //M20150401 : Typing Error
+         //#if _WZICHIP_ == 5200
+         #if _WIZCHIP_ == 5200
             if(getSn_TX_RD(sn) != sock_next_rd[sn])
             {
                setSn_CR(sn,Sn_CR_SEND);
                while(getSn_CR(sn));
-               return SOCKERR_BUSY;
+               return SOCK_BUSY;
             }
          #endif
          sock_is_sending &= ~(1<<sn);         
@@ -307,11 +366,18 @@ int32_t send(uint8_t sn, uint8_t * buf, uint16_t len)
    #if _WIZCHIP_ == 5200
       sock_next_rd[sn] = getSn_TX_RD(sn) + len;
    #endif
+
+   #if _WIZCHIP_ == 5300
+      setSn_TX_WRSR(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;
+   //M20150409 : Explicit Type Casting
+   //return len;
+   return (int32_t)len;
 }
 
 
@@ -319,41 +385,105 @@ int32_t recv(uint8_t sn, uint8_t * buf, uint16_t len)
 {
    uint8_t  tmp = 0;
    uint16_t recvsize = 0;
+//A20150601 : For integarating with W5300
+#if   _WIZCHIP_ == 5300
+   uint8_t head[2];
+   uint16_t mr;
+#endif
+//
    CHECK_SOCKNUM();
    CHECK_SOCKMODE(Sn_MR_TCP);
    CHECK_SOCKDATA();
    
    recvsize = getSn_RxMAX(sn);
    if(recvsize < len) len = recvsize;
-   while(1)
+      
+//A20150601 : For Integrating with W5300
+#if _WIZCHIP_ == 5300
+   //sock_pack_info[sn] = PACK_COMPLETED;    // for clear      
+   if(sock_remained_size[sn] == 0)
    {
-      recvsize = getSn_RX_RSR(sn);
+#endif
-      tmp = getSn_SR(sn);
+//
-      if (tmp != SOCK_ESTABLISHED)
+      while(1)
       {
-         if(tmp == SOCK_CLOSE_WAIT)
+         recvsize = getSn_RX_RSR(sn);
+         tmp = getSn_SR(sn);
+         if (tmp != SOCK_ESTABLISHED)
          {
-            if(recvsize != 0) break;
+            if(tmp == SOCK_CLOSE_WAIT)
-            else if(getSn_TX_FSR(sn) == getSn_TxMAX(sn))
+            {
+               if(recvsize != 0) break;
+               else if(getSn_TX_FSR(sn) == getSn_TxMAX(sn))
+               {
+                  close(sn);
+                  return SOCKERR_SOCKSTATUS;
+               }
+            }
+            else
             {
                close(sn);
                return SOCKERR_SOCKSTATUS;
             }
          }
+         if((sock_io_mode & (1<<sn)) && (recvsize == 0)) return SOCK_BUSY;
+         if(recvsize != 0) break;
+      };
+#if _WIZCHIP_ == 5300
+   }
+#endif
+
+//A20150601 : For integrating with W5300
+#if _WIZCHIP_ == 5300
+   if((sock_remained_size[sn] == 0) || (getSn_MR(sn) & Sn_MR_ALIGN))
+   {
+      mr = getMR();
+      if((getSn_MR(sn) & Sn_MR_ALIGN)==0)
+      {
+         wiz_recv_data(sn,head,2);
+         if(mr & MR_FS)
+            recvsize = (((uint16_t)head[1]) << 8) | ((uint16_t)head[0]);
          else
-         {
+            recvsize = (((uint16_t)head[0]) << 8) | ((uint16_t)head[1]);
-            close(sn);
+         sock_pack_info[sn] = PACK_FIRST;
-            return SOCKERR_SOCKSTATUS;
-         }
       }
-      if((sock_io_mode & (1<<sn)) && (recvsize == 0)) return SOCK_BUSY;
+      sock_remained_size[sn] = recvsize;
-      if(recvsize != 0) break;
+   }
-   };
+   if(len > sock_remained_size[sn]) len = sock_remained_size[sn];
+   recvsize = len;   
+   if(sock_pack_info[sn] & PACK_FIFOBYTE)
+   {
+      *buf = sock_remained_byte[sn];
+      buf++;
+      sock_pack_info[sn] &= ~(PACK_FIFOBYTE);
+      recvsize -= 1;
+      sock_remained_size[sn] -= 1;
+   }
+   if(recvsize != 0)
+   {
+      wiz_recv_data(sn, buf, recvsize);
+      setSn_CR(sn,Sn_CR_RECV);
+      while(getSn_CR(sn));
+   }
+   sock_remained_size[sn] -= recvsize;
+   if(sock_remained_size[sn] != 0)
+   {
+      sock_pack_info[sn] |= PACK_REMAINED;
+      if(recvsize & 0x1) sock_pack_info[sn] |= PACK_FIFOBYTE;
+   }
+   else sock_pack_info[sn] = PACK_COMPLETED;
+   if(getSn_MR(sn) & Sn_MR_ALIGN) sock_remained_size[sn] = 0;
+   //len = recvsize;
+#else   
    if(recvsize < len) len = recvsize;   
    wiz_recv_data(sn, buf, len);
    setSn_CR(sn,Sn_CR_RECV);
    while(getSn_CR(sn));
-   return len;
+#endif
+     
+   //M20150409 : Explicit Type Casting
+   //return len;
+   return (int32_t)len;
 }
 
 int32_t sendto(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t port)
@@ -366,6 +496,7 @@ int32_t sendto(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t
    switch(getSn_MR(sn) & 0x0F)
    {
       case Sn_MR_UDP:
+      case Sn_MR_IPRAW:
       case Sn_MR_MACRAW:
          break;
       default:
@@ -383,10 +514,10 @@ int32_t sendto(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t
    //}
    //
    //if(*((uint32_t*)addr) == 0) return SOCKERR_IPINVALID;
-   if(taddr == 0) 				return SOCKERR_IPINVALID;
+   if((taddr == 0)&(getSn_MR(sn)&Sn_MR_MACRAW != Sn_MR_MACRAW)) return SOCKERR_IPINVALID;
-   if(port == 0)               	return SOCKERR_PORTZERO;
+   if((port  == 0)&(getSn_MR(sn)&Sn_MR_MACRAW != Sn_MR_MACRAW)) return SOCKERR_PORTZERO;
    tmp = getSn_SR(sn);
-   if(tmp != SOCK_MACRAW && tmp != SOCK_UDP) return SOCKERR_SOCKSTATUS;
+   if(tmp != SOCK_MACRAW && tmp != SOCK_UDP && tmp != SOCK_IPRAW) return SOCKERR_SOCKSTATUS;
       
    setSn_DIPR(sn,addr);
    setSn_DPORT(sn,port);      
@@ -401,16 +532,24 @@ int32_t sendto(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t
    };
 	wiz_send_data(sn, buf, len);
 
-   #if _WIZCHIP_ == 5200   // for W5200 ARP errata 
+   #if _WIZCHIP_ < 5500   //M20150401 : for WIZCHIP Errata #4, #5 (ARP errata)
-      setSUBR(0);
+      getSIPR((uint8_t*)&taddr);
+      if(taddr == 0)
+      {
+         getSUBR((uint8_t*)&taddr);
+         setSUBR((uint8_t*)"\x00\x00\x00\x00");
+      }
+      else taddr = 0;
    #endif
 
+//A20150601 : For W5300
+#if _WIZCHIP_ == 5300
+   setSn_TX_WRSR(sn, len);
+#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);
@@ -424,23 +563,46 @@ int32_t sendto(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t
       else if(tmp & Sn_IR_TIMEOUT)
       {
          setSn_IR(sn, Sn_IR_TIMEOUT);
+         //M20150409 : Fixed the lost of sign bits by type casting.
+         //len = (uint16_t)SOCKERR_TIMEOUT;
+         //break;
+         #if _WIZCHIP_ < 5500   //M20150401 : for WIZCHIP Errata #4, #5 (ARP errata)
+            if(taddr) setSUBR((uint8_t*)&taddr);
+         #endif
          return SOCKERR_TIMEOUT;
       }
       ////////////
    }
-	return len;
+   #if _WIZCHIP_ < 5500   //M20150401 : for WIZCHIP Errata #4, #5 (ARP errata)
+      if(taddr) setSUBR((uint8_t*)&taddr);
+   #endif
+   //M20150409 : Explicit Type Casting
+   //return len;
+   return (int32_t)len;
 }
 
 
 
 int32_t recvfrom(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t *port)
 {
+//M20150601 : For W5300   
+#if _WIZCHIP_ == 5300
+   uint16_t mr;
+   uint16_t mr1;
+#else   
    uint8_t  mr;
+#endif
+//   
    uint8_t  head[8];
 	uint16_t pack_len=0;
 
    CHECK_SOCKNUM();
    //CHECK_SOCKMODE(Sn_MR_UDP);
+//A20150601
+#if _WIZCHIP_ == 5300
+   mr1 = getMR();
+#endif   
+
    switch((mr=getSn_MR(sn)) & 0x0F)
    {
       case Sn_MR_UDP:
@@ -465,7 +627,8 @@ int32_t recvfrom(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16
          if(pack_len != 0) break;
       };
    }
-   sock_pack_info[sn] = PACK_COMPLETED;
+//D20150601 : Move it to bottom
+// sock_pack_info[sn] = PACK_COMPLETED;
 	switch (mr & 0x07)
 	{
 	   case Sn_MR_UDP :
@@ -475,18 +638,48 @@ int32_t recvfrom(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16
    			setSn_CR(sn,Sn_CR_RECV);
    			while(getSn_CR(sn));
    			// read peer's IP address, port number & packet length
-    			addr[0] = head[0];
+   	   //A20150601 : For W5300
-   			addr[1] = head[1];
+   		#if _WIZCHIP_ == 5300
-   			addr[2] = head[2];
+   		   if(mr1 & MR_FS)
-   			addr[3] = head[3];
+   		   {
-   			*port = head[4];
+   		      addr[0] = head[1];
-   			*port = (*port << 8) + head[5];
+   		      addr[1] = head[0];
-   			sock_remained_size[sn] = head[6];
+   		      addr[2] = head[3];
-   			sock_remained_size[sn] = (sock_remained_size[sn] << 8) + head[7];
+   		      addr[3] = head[2];
+   		      *port = head[5];
+   		      *port = (*port << 8) + head[4];
+      			sock_remained_size[sn] = head[7];
+      			sock_remained_size[sn] = (sock_remained_size[sn] << 8) + head[6];
+   		   }
+            else
+            {
+         #endif
+               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];
+         #if _WIZCHIP_ == 5300
+            }
+         #endif
    			sock_pack_info[sn] = PACK_FIRST;
    	   }
 			if(len < sock_remained_size[sn]) pack_len = len;
 			else pack_len = sock_remained_size[sn];
+			//A20150601 : For W5300
+			len = pack_len;
+			#if _WIZCHIP_ == 5300
+			   if(sock_pack_info[sn] & PACK_FIFOBYTE)
+			   {
+			      *buf++ = sock_remained_byte[sn];
+			      pack_len -= 1;
+			      sock_remained_size[sn] -= 1;
+			      sock_pack_info[sn] &= ~PACK_FIFOBYTE;
+			   }
+			#endif
 			//
 			// Need to packet length check (default 1472)
 			//
@@ -500,7 +693,13 @@ int32_t recvfrom(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16
    			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];
+   			sock_remained_size[sn] = (sock_remained_size[sn] <<8) + head[1] -2;
+   			#if _WIZCHIP_ == W5300
+   			if(sock_remained_size[sn] & 0x01)
+   				sock_remained_size[sn] = sock_remained_size[sn] + 1 - 4;
+   			else
+   				sock_remained_size[sn] -= 4;
+			#endif
    			if(sock_remained_size[sn] > 1514) 
    			{
    			   close(sn);
@@ -524,7 +723,9 @@ int32_t recvfrom(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16
    			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];
+   			//M20150401 : For Typing Error
+   			//sock_remaiend_size[sn] = (sock_remained_size[sn] << 8) + head[5];
+   			sock_remained_size[sn] = (sock_remained_size[sn] << 8) + head[5];
    			sock_pack_info[sn] = PACK_FIRST;
          }
 			//
@@ -544,11 +745,23 @@ int32_t recvfrom(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16
 	/* wait to process the command... */
 	while(getSn_CR(sn)) ;
 	sock_remained_size[sn] -= pack_len;
-	//M20140501 : replace 0x01 with PACK_REMAINED
+	//M20150601 : 
 	//if(sock_remained_size[sn] != 0) sock_pack_info[sn] |= 0x01;
-	if(sock_remained_size[sn] != 0) sock_pack_info[sn] |= PACK_REMAINED;
+	if(sock_remained_size[sn] != 0)
+	{
+	   sock_pack_info[sn] |= PACK_REMAINED;
+   #if _WIZCHIP_ == 5300	   
+	   if(pack_len & 0x01) sock_pack_info[sn] |= PACK_FIFOBYTE;
+   #endif	      
+	}
+	else sock_pack_info[sn] = PACK_COMPLETED;
+#if _WIZCHIP_ == 5300	   
+   pack_len = len;
+#endif
    //
- 	return pack_len;
+   //M20150409 : Explicit Type Casting
+   //return pack_len;
+   return (int32_t)pack_len;
 }
 
 
@@ -583,6 +796,7 @@ int8_t  ctlsocket(uint8_t sn, ctlsock_type cstype, void* arg)
       case CS_GET_INTERRUPT:
          *((uint8_t*)arg) = getSn_IR(sn);
          break;
+   #if _WIZCHIP_ != 5100
       case CS_SET_INTMASK:  
          if( (*(uint8_t*)arg) > SIK_ALL) return SOCKERR_ARG;
          setSn_IMR(sn,*(uint8_t*)arg);
@@ -590,6 +804,7 @@ int8_t  ctlsocket(uint8_t sn, ctlsock_type cstype, void* arg)
       case CS_GET_INTMASK:   
          *((uint8_t*)arg) = getSn_IMR(sn);
          break;
+   #endif
       default:
          return SOCKERR_ARG;
    }

Ethernet/socket.h

@@ -96,7 +96,7 @@
 #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_SOCKINIT      (SOCK_ERROR - 3)     ///< Socket is not initialized or SIPR is Zero IP address when Sn_MR_TCP
 #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
@@ -113,16 +113,21 @@
 /*
  * 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_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_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_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.
+#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_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_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_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
+   #define SF_UNI_BLOCK           (Sn_MR_UCASTB)   ///< In @ref Sn_MR_UDP with \ref SF_MULTI_ENABLE. Valid only in W5500
+#endif
+
+//A201505 : For W5300
+#if _WIZCHIP_ == 5300
+   #define SF_TCP_ALIGN		     0x02			   ///< Valid only \ref Sn_MR_TCP and W5300, refer to \ref Sn_MR_ALIGN
 #endif
 
 #define SF_IO_NONBLOCK           0x01              ///< Socket nonblock io mode. It used parameter in \ref socket().
@@ -130,9 +135,12 @@
 /*
  * UDP & MACRAW Packet Infomation
  */
-#define PACK_FIRST               0x80              ///< In Non-TCP packet, It indicates to start receiving a packet.
+#define PACK_FIRST               0x80              ///< In Non-TCP packet, It indicates to start receiving a packet. (When W5300, This flag can be applied)
-#define PACK_REMAINED            0x01              ///< In Non-TCP packet, It indicates to remain a packet to be received.
+#define PACK_REMAINED            0x01              ///< In Non-TCP packet, It indicates to remain a packet to be received. (When W5300, This flag can be applied)
-#define PACK_COMPLETED           0x00              ///< In Non-TCP packet, It indicates to complete to receive a packet.
+#define PACK_COMPLETED           0x00              ///< In Non-TCP packet, It indicates to complete to receive a packet. (When W5300, This flag can be applied)
+//A20150601 : For Integrating with W5300
+#define PACK_FIFOBYTE            0x02              ///< Valid only W5300, It indicate to have read already the Sn_RX_FIFOR.
+//
 
 /**
  * @ingroup WIZnet_socket_APIs
@@ -341,7 +349,9 @@ typedef enum
    SIK_RECEIVED      = (1 << 2),    ///< data received
    SIK_TIMEOUT       = (1 << 3),    ///< timeout occurred
    SIK_SENT          = (1 << 4),    ///< send ok
-   SIK_ALL           = 0x1F,        ///< all interrupt
+   //M20150410 : Remove the comma of last member
+   //SIK_ALL           = 0x1F,        ///< all interrupt
+   SIK_ALL           = 0x1F         ///< all interrupt
 }sockint_kind;
 
 /**
@@ -356,8 +366,10 @@ typedef enum
    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
+#if _WIZCHIP_ > 5100
-   CS_GET_INTMASK          ///< get the masked interrupt of socket. refer to @ref sockint_kind
+   CS_SET_INTMASK,         ///< set the interrupt mask of socket with @ref sockint_kind, Not supported in W5100
+   CS_GET_INTMASK          ///< get the masked interrupt of socket. refer to @ref sockint_kind, Not supported in W5100
+#endif
 }ctlsock_type;
 
 
@@ -368,15 +380,15 @@ typedef enum
 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_TTL,              ///< Set 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_TOS,              ///< Set 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_MSS,              ///< Set 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_DESTIP,           ///< Set the destination IP address. @ref Sn_DIPR ( @ref setSn_DIPR(), @ref getSn_DIPR() )
-   SO_DESTPORT,         ///< Set/Get the destination Port number. @ref Sn_DPORT ( @ref setSn_DPORT(), @ref getSn_DPORT() )
+   SO_DESTPORT,         ///< Set the destination 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
+   SO_KEEPALIVESEND,    ///< Valid only in setsockopt. Manually send keep-alive packet in TCP mode, Not supported in W5100
    #if _WIZCHIP_ > 5200   
-      SO_KEEPALIVEAUTO, ///< Set/Get keep-alive auto transmission timer in TCP mode
+      SO_KEEPALIVEAUTO, ///< Set/Get keep-alive auto transmission timer in TCP mode, Not supported in W5100, W5200
    #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()

Ethernet/wizchip_conf.c

@@ -10,7 +10,7 @@
 //!        Download the latest version directly from GitHub. Please visit the our GitHub repository for ioLibrary.
 //!        >> https://github.com/Wiznet/ioLibrary_Driver
 //!       <2014/05/01> V1.0.1  Refer to M20140501
-//!        1. Explicit type casting in wizchip_bus_readbyte() & wizchip_bus_writebyte()
+//!        1. Explicit type casting in wizchip_bus_readdata() & wizchip_bus_writedata()
 //            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.
@@ -53,77 +53,101 @@
 //
 
 #include "wizchip_conf.h"
+
+/////////////
+//M20150401 : Remove ; in the default callback function such as wizchip_cris_enter(), wizchip_cs_select() and etc.
+/////////////
+
 /**
  * @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)           {};
+//void 	  wizchip_cris_enter(void)           {};
+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)          {};
+//void 	  wizchip_cris_exit(void)          {};
+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)            {};
+//void 	wizchip_cs_select(void)            {};
+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)          {};
+//void 	wizchip_cs_deselect(void)          {};
+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
+ //M20150601 : Rename the function for integrating with W5300
-//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)); }
-uint8_t wizchip_bus_readbyte(uint32_t AddrSel) { return * ((volatile uint8_t *)((ptrdiff_t) AddrSel)); };
+iodata_t wizchip_bus_readdata(uint32_t AddrSel) { return * ((volatile iodata_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.
  */
- 
+//M20150601 : Rename the function for integrating with W5300
-//M20140501 : Explict pointer type casting
+//void 	wizchip_bus_writebyte(uint32_t AddrSel, uint8_t wb)  { *((volatile uint8_t*)((ptrdiff_t)AddrSel)) = wb; }
-//void 	wizchip_bus_writebyte(uint32_t AddrSel, uint8_t wb)  { *((volatile uint8_t*) AddrSel) = wb; };
+void 	wizchip_bus_writedata(uint32_t AddrSel, iodata_t wb)  { *((volatile iodata_t*)((ptrdiff_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;};
+//uint8_t wizchip_spi_readbyte(void)        {return 0;};
+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) {};
+//void 	wizchip_spi_writebyte(uint8_t wb) {};
+void 	wizchip_spi_writebyte(uint8_t wb) {}
 
 /**
  * @brief Default function to burst 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.
  */
-void 	wizchip_spi_readburst(uint8_t* pBuf, uint16_t len) 	{};
+//void 	wizchip_spi_readburst(uint8_t* pBuf, uint16_t len) 	{}; 
+void 	wizchip_spi_readburst(uint8_t* pBuf, uint16_t len) 	{}
+
 /**
  * @brief Default function to burst 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_writeburst(uint8_t* pBuf, uint16_t len) {};
+//void 	wizchip_spi_writeburst(uint8_t* pBuf, uint16_t len) {};
+void 	wizchip_spi_writeburst(uint8_t* pBuf, uint16_t len) {}
 
 /**
  * @\ref _WIZCHIP instance
  */
+//
+//M20150401 : For a compiler didnot support a member of structure
+//            Replace the assignment of struct members with the assingment of array
+//
+/*
 _WIZCHIP  WIZCHIP =
       {
       .id                  = _WIZCHIP_ID_,
@@ -137,6 +161,24 @@ _WIZCHIP  WIZCHIP =
 //    .IF.SPI._read_byte   = wizchip_spi_readbyte,
 //    .IF.SPI._write_byte  = wizchip_spi_writebyte
       };
+*/      
+_WIZCHIP  WIZCHIP =
+      {
+      _WIZCHIP_IO_MODE_,
+      _WIZCHIP_ID_ ,
+      wizchip_cris_enter,
+      wizchip_cris_exit,
+      wizchip_cs_select,
+      wizchip_cs_deselect,
+      //M20150601 : Rename the function 
+      //wizchip_bus_readbyte,
+      //wizchip_bus_writebyte
+      wizchip_bus_readdata,
+      wizchip_bus_writedata,
+//    wizchip_spi_readbyte,
+//    wizchip_spi_writebyte
+      };
+
 
 static uint8_t    _DNS_[4];      // DNS server ip address
 static dhcp_mode  _DHCP_;        // DHCP mode
@@ -169,10 +211,13 @@ void reg_wizchip_cs_cbfunc(void(*cs_sel)(void), void(*cs_desel)(void))
    }
 }
 
-void reg_wizchip_bus_cbfunc(uint8_t(*bus_rb)(uint32_t addr), void (*bus_wb)(uint32_t addr, uint8_t wb))
+//M20150515 : For integrating with W5300
+//void reg_wizchip_bus_cbfunc(uint8_t(*bus_rb)(uint32_t addr), void (*bus_wb)(uint32_t addr, uint8_t wb))
+void reg_wizchip_bus_cbfunc(iodata_t(*bus_rb)(uint32_t addr), void (*bus_wb)(uint32_t addr, iodata_t wb))
 {
    while(!(WIZCHIP.if_mode & _WIZCHIP_IO_MODE_BUS_));
-   
+   //M20150601 : Rename call back function for integrating with W5300
+   /*
    if(!bus_rb || !bus_wb)
    {
       WIZCHIP.IF.BUS._read_byte   = wizchip_bus_readbyte;
@@ -183,6 +228,17 @@ void reg_wizchip_bus_cbfunc(uint8_t(*bus_rb)(uint32_t addr), void (*bus_wb)(uint
       WIZCHIP.IF.BUS._read_byte   = bus_rb;
       WIZCHIP.IF.BUS._write_byte  = bus_wb;
    }
+   */
+   if(!bus_rb || !bus_wb)
+   {
+      WIZCHIP.IF.BUS._read_data   = wizchip_bus_readdata;
+      WIZCHIP.IF.BUS._write_data  = wizchip_bus_writedata;
+   }
+   else
+   {
+      WIZCHIP.IF.BUS._read_data   = bus_rb;
+      WIZCHIP.IF.BUS._write_data  = bus_wb;
+   }
 }
 
 void reg_wizchip_spi_cbfunc(uint8_t (*spi_rb)(void), void (*spi_wb)(uint8_t wb))
@@ -220,7 +276,9 @@ void reg_wizchip_spiburst_cbfunc(void (*spi_rb)(uint8_t* pBuf, uint16_t len), vo
 
 int8_t ctlwizchip(ctlwizchip_type cwtype, void* arg)
 {
+#if	_WIZCHIP_ == 5200 || _WIZCHIP_ == 5500
    uint8_t tmp = 0;
+#endif
    uint8_t* ptmp[2] = {0,0};
    switch(cwtype)
    {
@@ -246,7 +304,9 @@ int8_t ctlwizchip(ctlwizchip_type cwtype, void* arg)
       case CW_GET_INTRMASK:
          *((intr_kind*)arg) = wizchip_getinterruptmask();
          break;
-   #if _WIZCHIP_ > 5100
+   //M20150601 : This can be supported by W5200, W5500
+   //#if _WIZCHIP_ > 5100
+   #if (_WIZCHIP_ == 5200 || _WIZCHIP_ == 5500)
       case CW_SET_INTRTIME:
          setINTLEVEL(*(uint16_t*)arg);
          break;
@@ -277,6 +337,7 @@ int8_t ctlwizchip(ctlwizchip_type cwtype, void* arg)
       case CW_SET_PHYPOWMODE:
          return wizphy_setphypmode(*(uint8_t*)arg);
    #endif
+   #if _WIZCHIP_ == 5200 || _WIZCHIP_ == 5500
       case CW_GET_PHYPOWMODE:
          tmp = wizphy_getphypmode();
          if((int8_t)tmp == -1) return -1;
@@ -287,6 +348,7 @@ int8_t ctlwizchip(ctlwizchip_type cwtype, void* arg)
          if((int8_t)tmp == -1) return -1;
          *(uint8_t*)arg = tmp;
          break;
+   #endif      
       default:
          return -1;
    }
@@ -326,10 +388,21 @@ void wizchip_sw_reset(void)
 {
    uint8_t gw[4], sn[4], sip[4];
    uint8_t mac[6];
+//A20150601
+#if _WIZCHIP_IO_MODE_  == _WIZCHIP_IO_MODE_BUS_INDIR_
+   uint16_t mr = (uint16_t)getMR();
+   setMR(mr | MR_IND);
+#endif
+//
    getSHAR(mac);
    getGAR(gw);  getSUBR(sn);  getSIPR(sip);
    setMR(MR_RST);
    getMR(); // for delay
+//A2015051 : For indirect bus mode 
+#if _WIZCHIP_IO_MODE_  == _WIZCHIP_IO_MODE_BUS_INDIR_
+   setMR(mr | MR_IND);
+#endif
+//
    setSHAR(mac);
    setGAR(gw);
    setSUBR(sn);
@@ -344,18 +417,44 @@ int8_t wizchip_init(uint8_t* txsize, uint8_t* rxsize)
    if(txsize)
    {
       tmp = 0;
+   //M20150601 : For integrating with W5300
+   #if _WIZCHIP_ == 5300
       for(i = 0 ; i < _WIZCHIP_SOCK_NUM_; i++)
+      {
+         if(txsize[i] >= 64) return -1;   //No use 64KB even if W5300 support max 64KB memory allocation
          tmp += txsize[i];
-      if(tmp > 16) return -1;
+         if(tmp > 128) return -1;
+      }
+      if(tmp % 8) return -1;
+   #else      
+      for(i = 0 ; i < _WIZCHIP_SOCK_NUM_; i++)
+      {
+         tmp += txsize[i];
+         if(tmp > 16) return -1;
+      }
+   #endif
       for(i = 0 ; i < _WIZCHIP_SOCK_NUM_; i++)
          setSn_TXBUF_SIZE(i, txsize[i]);
    }
    if(rxsize)
    {
       tmp = 0;
+   #if _WIZCHIP_ == 5300
       for(i = 0 ; i < _WIZCHIP_SOCK_NUM_; i++)
+      {
+         if(rxsize[i] >= 64) return -1;   //No use 64KB even if W5300 support max 64KB memory allocation         
          tmp += rxsize[i];
-      if(tmp > 16) return -1;
+         if(tmp > 128) return -1;
+      }
+      if(tmp % 8) return -1;
+   #else         
+      for(i = 0 ; i < _WIZCHIP_SOCK_NUM_; i++)
+      {
+         tmp += rxsize[i];
+         if(tmp > 16) return -1;
+      }
+   #endif
+
       for(i = 0 ; i < _WIZCHIP_SOCK_NUM_; i++)
          setSn_RXBUF_SIZE(i, rxsize[i]);
    }
@@ -380,6 +479,9 @@ void wizchip_clrinterrupt(intr_kind intr)
 #if _WIZCHIP_ == 5100
    ir |= sir;
    setIR(ir);
+//A20150601 : For integrating with W5300
+#elif _WIZCHIP_ == 5300
+   setIR( ((((uint16_t)ir) << 8) | (((uint16_t)sir) & 0x00FF)) );
 #else
    setIR(ir);
    setSIR(sir);
@@ -393,13 +495,20 @@ intr_kind wizchip_getinterrupt(void)
    uint16_t ret = 0;
 #if _WIZCHIP_ == 5100
    ir = getIR();
-   sir = ir 0x0F;
+   sir = ir & 0x0F;
+//A20150601 : For integrating with W5300
+#elif _WIZCHIP_  == 5300
+   ret = getIR();
+   ir = (uint8_t)(ret >> 8);
+   sir = (uint8_t)ret;
 #else
    ir  = getIR();
    sir = getSIR();
 #endif         
 
-#if _WIZCHIP_ < 5500
+//M20150601 : For Integrating with W5300
+//#if _WIZCHIP_ < 5500
+#if _WIZCHIP_ < 5200
    ir &= ~(1<<4); // IK_WOL
 #endif
 #if _WIZCHIP_ == 5200
@@ -421,13 +530,13 @@ void wizchip_setinterruptmask(intr_kind intr)
    imr &= ~(1 << 6);
 #endif
    
-#if _WIZCHIP_ < 5200
-   simr &= 0x0F;
-#endif
-
 #if _WIZCHIP_ == 5100
+   simr &= 0x0F;
    imr |= simr;
    setIMR(imr);
+//A20150601 : For integrating with W5300
+#elif _WIZCHIP_ == 5300
+   setIMR( ((((uint16_t)imr) << 8) | (((uint16_t)simr) & 0x00FF)) );
 #else
    setIMR(imr);
    setSIMR(simr);
@@ -441,7 +550,12 @@ intr_kind wizchip_getinterruptmask(void)
    uint16_t ret = 0;
 #if _WIZCHIP_ == 5100
    imr  = getIMR();
-   simr = imr 0x0F;
+   simr = imr & 0x0F;
+//A20150601 : For integrating with W5300
+#elif _WIZCHIP_ == 5300
+   ret = getIMR();
+   imr = (uint8_t)(ret >> 8);
+   simr = (uint8_t)ret;
 #else
    imr  = getIMR();
    simr = getSIMR();

Ethernet/wizchip_conf.h

@@ -57,10 +57,12 @@
 #include <stdint.h>
 /**
  * @brief Select WIZCHIP.
- * @todo You should select one, \b 5100, \b 5200 ,\b 5500 or etc. \n\n
+ * @todo You should select one, \b 5100, \b 5200, \b 5300, \b 5500 or etc. \n\n
  *       ex> <code> #define \_WIZCHIP_      5500 </code>
  */
-#define _WIZCHIP_                      5500   // 5100, 5200, 5500
+#ifndef _WIZCHIP_
+#define _WIZCHIP_                      5500   // 5100, 5200, 5300, 5500
+#endif
 
 #define _WIZCHIP_IO_MODE_NONE_         0x0000
 #define _WIZCHIP_IO_MODE_BUS_          0x0100 /**< Bus interface mode */
@@ -83,19 +85,27 @@
  * @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_
 
+//A20150601 : Define the unit of IO DATA.   
+   typedef   uint8_t   iodata_t;
+//A20150401 : Indclude W5100.h file   
+   #include "W5100/w5100.h"
+
 #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_
  */
+#ifndef _WIZCHIP_IO_MODE_
 // #define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_BUS_INDIR_
    #define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_SPI_
+#endif
+//A20150601 : Define the unit of IO DATA.   
+   typedef   uint8_t   iodata_t;
    #include "W5200/w5200.h"
 #elif (_WIZCHIP_ == 5500)
   #define _WIZCHIP_ID_                 "W5500\0"
@@ -113,9 +123,41 @@
  *        ex> <code> #define \_WIZCHIP_IO_MODE_ \_WIZCHIP_IO_MODE_SPI_VDM_ </code>
  *       
  */
+#ifndef _WIZCHIP_IO_MODE_
    //#define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_SPI_FDM_
    #define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_SPI_VDM_
+#endif
+//A20150601 : Define the unit of IO DATA.   
+   typedef   uint8_t   iodata_t;
    #include "W5500/w5500.h"
+#elif ( _WIZCHIP_ == 5300)
+   #define _WIZCHIP_ID_                 "W5300\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_
+ */
+#ifndef _WIZCHIP_IO_MODE_
+//   #define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_BUS_DIR_
+ #define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_BUS_INDIR_
+#endif
+
+//A20150601 : Define the unit and bus width of IO DATA. 
+   /**
+    * @brief Select the data width 8 or 16 bits.
+    * @todo you should select the bus width. Select one of 8 or 16.
+    */
+   #ifndef _WIZCHIP_IO_BUS_WIDTH_
+   #define _WIZCHIP_IO_BUS_WIDTH_       8  // 16
+   #endif
+   #if _WIZCHIP_IO_BUS_WIDTH_ == 8
+      typedef   uint8_t   iodata_t;
+   #elif _WIZCHIP_IO_BUS_WIDTH_ == 16
+      typedef   uint16_t   iodata_t;
+   #else
+      #error "Unknown _WIZCHIP_IO_BUS_WIDTH_. It should be 8 or 16."	
+   #endif
+//
+   #include "W5300/w5300.h"
 #else
    #error "Unknown defined _WIZCHIP_. You should define one of 5100, 5200, and 5500 !!!"
 #endif
@@ -130,9 +172,13 @@
  *       @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  // 
+#ifndef _WIZCHIP_IO_BASE_
+#define _WIZCHIP_IO_BASE_              0x00000000  // 0x8000
+#endif
 
-#if _WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_BUS
+//M20150401 : Typing Error
+//#if _WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_BUS
+#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
@@ -165,7 +211,7 @@ typedef struct __WIZCHIP
       void (*_exit) (void);         ///< critial section exit  
    }CRIS;  
    /**
-    *  The set of @ref\_WIZCHIP_ select control callback func.
+    *  The set of @ref \_WIZCHIP_ select control callback func.
     */
    struct _CS
    {
@@ -180,11 +226,18 @@ typedef struct __WIZCHIP
       /**
        * For BUS interface IO
        */
+      //M20156501 : Modify the function name for integrating with W5300
+      //struct
+      //{
+      //   uint8_t  (*_read_byte)  (uint32_t AddrSel);
+      //   void     (*_write_byte) (uint32_t AddrSel, uint8_t wb);
+      //}BUS;      
       struct
       {
-         uint8_t  (*_read_byte)  (uint32_t AddrSel);
+         iodata_t  (*_read_data)   (uint32_t AddrSel);
-         void     (*_write_byte) (uint32_t AddrSel, uint8_t wb);
+         void      (*_write_data)  (uint32_t AddrSel, iodata_t wb);
       }BUS;      
+
       /**
        * For SPI interface IO
        */
@@ -218,15 +271,19 @@ typedef enum
    CW_GET_INTRTIME,    ///< Set interval time between the current and next interrupt. 
    CW_GET_ID,          ///< Gets WIZCHIP name.
 
-#if _WIZCHIP_ ==  5500
+//D20150601 : For no modification your application code
-   CW_RESET_PHY,       ///< Resets internal PHY. Valid Only W5000
+//#if _WIZCHIP_ ==  5500
+   CW_RESET_PHY,       ///< Resets internal PHY. Valid Only W5500
    CW_SET_PHYCONF,     ///< When PHY configured by internal register, PHY operation mode (Manual/Auto, 10/100, Half/Full). Valid Only W5000
-   CW_GET_PHYCONF,     ///< Get PHY operation mode in internal register. Valid Only W5000
+   CW_GET_PHYCONF,     ///< Get PHY operation mode in internal register. Valid Only W5500
-   CW_GET_PHYSTATUS,   ///< Get real PHY status on operating. Valid Only W5000
+   CW_GET_PHYSTATUS,   ///< Get real PHY status on operating. Valid Only W5500
    CW_SET_PHYPOWMODE,  ///< Set PHY power mode as normal and down when PHYSTATUS.OPMD == 1. Valid Only W5500
-#endif
+//#endif
-   CW_GET_PHYPOWMODE,  ///< Get PHY Power mode as down or normal
+//D20150601 : For no modification your application code
-   CW_GET_PHYLINK      ///< Get PHY Link status
+//#if _WIZCHIP_ == 5200 || _WIZCHIP_ == 5500
+   CW_GET_PHYPOWMODE,  ///< Get PHY Power mode as down or normal, Valid Only W5100, W5200
+   CW_GET_PHYLINK      ///< Get PHY Link status, Valid Only W5100, W5200
+//#endif
 }ctlwizchip_type;
 
 /**
@@ -251,8 +308,10 @@ typedef enum
  */
 typedef enum
 {
-#if _WIZCHIP_ > 5200
+#if   _WIZCHIP_ == 5500
    IK_WOL               = (1 << 4),   ///< Wake On Lan by receiving the magic packet. Valid in W500.
+#elif _WIZCHIP_ == 5300
+   IK_FMTU              = (1 << 4),   ///< Received a ICMP message (Fragment MTU)   
 #endif   
 
    IK_PPPOE_TERMINATED  = (1 << 5),   ///< PPPoE Disconnected
@@ -389,7 +448,9 @@ void reg_wizchip_cs_cbfunc(void(*cs_sel)(void), void(*cs_desel)(void));
  *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));
+//M20150601 : For integrating with W5300
+//void reg_wizchip_bus_cbfunc(uint8_t (*bus_rb)(uint32_t addr), void (*bus_wb)(uint32_t addr, uint8_t wb));
+void reg_wizchip_bus_cbfunc(iodata_t (*bus_rb)(uint32_t addr), void (*bus_wb)(uint32_t addr, iodata_t wb));
 
 /**
  *@brief Registers call back function for SPI interface.
@@ -547,17 +608,17 @@ netmode_type wizchip_getnetmode(void);
 
 /**
  * @ingroup extra_functions
- * @brief Set retry time value(@ref RTR) and retry count(@ref RCR).
+ * @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.  
+ * @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. 
+ * @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).
+ * @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.  
+ * @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. 
+ * @param nettime @ref _RTR_ value and @ref _RCR_ value. Refer to @ref wiz_NetTimeout. 
  */
 void wizchip_gettimeout(wiz_NetTimeout* nettime);
 

Internet/FTPClient/ftpc.c

@@ -0,0 +1,584 @@
+#include "ftpc.h"
+
+un_l2cval remote_ip;
+uint16_t  remote_port;
+un_l2cval local_ip;
+uint16_t  local_port;
+uint8_t connect_state_control_ftpc = 0;
+uint8_t connect_state_data_ftpc = 0;
+uint8_t gModeActivePassiveflag = 0;
+uint8_t FTP_destip[4] = {192, 168, 10, 230};	// For FTP client examples; destination network info
+uint16_t FTP_destport = 21;						// For FTP client examples; destination network info
+uint8_t gMenuStart = 0;
+uint8_t gDataSockReady = 0;
+uint8_t gDataPutGetStart = 0;
+static uint8_t gMsgBuf[20]={0,};
+
+struct ftpc ftpc;
+struct Command Command;
+
+void ftpc_init(uint8_t * src_ip)
+{
+	ftpc.dsock_mode = ACTIVE_MODE;
+
+	local_ip.cVal[0] = src_ip[0];
+	local_ip.cVal[1] = src_ip[1];
+	local_ip.cVal[2] = src_ip[2];
+	local_ip.cVal[3] = src_ip[3];
+	local_port = 35000;
+	strcpy(ftpc.workingdir, "/");
+	socket(CTRL_SOCK, Sn_MR_TCP, FTP_destport, 0x0);
+}
+uint8_t ftpc_run(uint8_t * dbuf)
+{
+#ifndef Need_UARTGetCharBlocking_func
+	uint16_t size = 0;
+	long ret = 0;
+	uint32_t send_byte, recv_byte;
+	uint32_t blocklen;
+	uint32_t remain_filesize;
+	uint32_t remain_datasize;
+	uint8_t msg_c;
+	uint8_t dat[50]={0,};
+	uint32_t totalSize = 0, availableSize = 0;
+
+    switch(getSn_SR(CTRL_SOCK))
+    {
+    	case SOCK_ESTABLISHED :
+    		if(!connect_state_control_ftpc){
+    			printf("%d:FTP Connected\r\n", CTRL_SOCK);
+    			strcpy(ftpc.workingdir, "/");
+    			connect_state_control_ftpc = 1;
+    		}
+    		if(gMenuStart){
+				gMenuStart = 0;
+				printf("\r\n----------------------------------------\r\n");
+				printf("Press menu key\r\n");
+				printf("----------------------------------------\r\n");
+				printf("1> View FTP Server Directory\r\n");
+				printf("2> View My Directory\r\n");
+				printf("3> Sets the type of file to be transferred. Current state : %s\r\n", (ftpc.type==ASCII_TYPE)?"Ascii":"Binary");
+				printf("4> Sets Data Connection. Current state : %s\r\n", (ftpc.dsock_mode==ACTIVE_MODE)?"Active":"Passive");
+				printf("5> Put File to Server\r\n");
+				printf("6> Get File from Server\r\n");
+#if defined(F_FILESYSTEM)
+				printf("7> Delete My File\r\n");
+#endif
+				printf("----------------------------------------\r\n");
+				while(1){
+					msg_c=ftp_getc();
+					if(msg_c=='1'){
+						if(ftpc.dsock_mode==PASSIVE_MODE){
+							sprintf(dat,"PASV\r\n");
+							send(CTRL_SOCK, (uint8_t *)dat, strlen(dat));
+							Command.First = f_dir;
+							break;
+						}
+						else{
+							wiz_NetInfo gWIZNETINFO;
+							ctlnetwork(CN_GET_NETINFO, (void*) &gWIZNETINFO);
+							sprintf(dat,"PORT %d,%d,%d,%d,%d,%d\r\n", gWIZNETINFO.ip[0], gWIZNETINFO.ip[1], gWIZNETINFO.ip[2], gWIZNETINFO.ip[3], (uint8_t)(local_port>>8), (uint8_t)(local_port&0x00ff));
+							send(CTRL_SOCK, (uint8_t *)dat, strlen(dat));
+							Command.First = f_dir;
+
+							gModeActivePassiveflag = 1;
+							break;
+						}
+						break;
+					}
+					else if(msg_c=='5'){
+						if(ftpc.dsock_mode==PASSIVE_MODE){
+							sprintf(dat,"PASV\r\n");
+							send(CTRL_SOCK, (uint8_t *)dat, strlen(dat));
+							Command.First = f_put;
+							break;
+						}
+						else{
+							wiz_NetInfo gWIZNETINFO;
+							ctlnetwork(CN_GET_NETINFO, (void*) &gWIZNETINFO);
+							sprintf(dat,"PORT %d,%d,%d,%d,%d,%d\r\n", gWIZNETINFO.ip[0], gWIZNETINFO.ip[1], gWIZNETINFO.ip[2], gWIZNETINFO.ip[3], (uint8_t)(local_port>>8), (uint8_t)(local_port&0x00ff));
+							send(CTRL_SOCK, (uint8_t *)dat, strlen(dat));
+							Command.First = f_put;
+
+							gModeActivePassiveflag = 1;
+							break;
+						}
+					}
+					else if(msg_c=='6'){
+						if(ftpc.dsock_mode==PASSIVE_MODE){
+							sprintf(dat,"PASV\r\n");
+							send(CTRL_SOCK, (uint8_t *)dat, strlen(dat));
+							Command.First = f_get;
+							break;
+						}
+						else{
+							wiz_NetInfo gWIZNETINFO;
+							ctlnetwork(CN_GET_NETINFO, (void*) &gWIZNETINFO);
+							sprintf(dat,"PORT %d,%d,%d,%d,%d,%d\r\n", gWIZNETINFO.ip[0], gWIZNETINFO.ip[1], gWIZNETINFO.ip[2], gWIZNETINFO.ip[3], (uint8_t)(local_port>>8), (uint8_t)(local_port&0x00ff));
+							send(CTRL_SOCK, (uint8_t *)dat, strlen(dat));
+							Command.First = f_get;
+
+							gModeActivePassiveflag = 1;
+							break;
+						}
+					}
+					else if(msg_c=='2'){
+#if defined(F_FILESYSTEM)
+						scan_files(ftpc.workingdir, dbuf, (int *)&size);
+						printf("\r\n%s\r\n", dbuf);
+#else
+						if (strncmp(ftpc.workingdir, "/$Recycle.Bin", sizeof("/$Recycle.Bin")) != 0)
+							size = sprintf(dbuf, "drwxr-xr-x 1 ftp ftp 0 Dec 31 2014 $Recycle.Bin\r\n-rwxr-xr-x 1 ftp ftp 512 Dec 31 2014 test.txt\r\n");
+						printf("\r\n%s\r\n", dbuf);
+#endif
+						gMenuStart = 1;
+						break;
+					}
+					else if(msg_c=='3'){
+						printf("1> ASCII\r\n");
+						printf("2> BINARY\r\n");
+						while(1){
+							msg_c=ftp_getc();
+							if(msg_c=='1'){
+								sprintf(dat,"TYPE %c\r\n", TransferAscii);
+								ftpc.type = ASCII_TYPE;
+								send(CTRL_SOCK, (uint8_t *)dat, strlen(dat));
+								break;
+							}
+							else if(msg_c=='2'){
+								sprintf(dat,"TYPE %c\r\n", TransferBinary);
+								ftpc.type = IMAGE_TYPE;
+								send(CTRL_SOCK, (uint8_t *)dat, strlen(dat));
+								break;
+							}
+							else{
+								printf("\r\nRetry...\r\n");
+							}
+						}
+						break;
+					}
+					else if(msg_c=='4'){
+						printf("1> ACTIVE\r\n");
+						printf("2> PASSIVE\r\n");
+						while(1){
+							msg_c=ftp_getc();
+							if(msg_c=='1'){
+								ftpc.dsock_mode=ACTIVE_MODE;
+								break;
+							}
+							else if(msg_c=='2'){
+								ftpc.dsock_mode=PASSIVE_MODE;
+								break;
+							}
+							else{
+								printf("\r\nRetry...\r\n");
+							}
+						}
+						gMenuStart = 1;
+						break;
+					}
+#if defined(F_FILESYSTEM)
+					else if(msg_c=='7'){
+						printf(">del filename?");
+						sprintf(ftpc.filename, "/%s\r\n", User_Keyboard_MSG());
+						if (f_unlink((const char *)ftpc.filename) != 0){
+							printf("\r\nCould not delete.\r\n");
+						}
+						else{
+							printf("\r\nDeleted.\r\n");
+						}
+						gMenuStart = 1;
+						break;
+					}
+#endif
+					else{
+						printf("\r\nRetry...\r\n");
+					}
+				}
+			}
+			if(gDataSockReady){
+				gDataSockReady = 0;
+				switch(Command.First){
+					case f_dir:
+						sprintf(dat,"LIST\r\n");
+						send(CTRL_SOCK, (uint8_t *)dat, strlen(dat));
+						break;
+					case f_put:
+						printf(">put file name?");
+						sprintf(dat,"STOR %s\r\n", User_Keyboard_MSG());
+						send(CTRL_SOCK, (uint8_t *)dat, strlen(dat));
+						break;
+					case f_get:
+						printf(">get file name?");
+						sprintf(dat,"RETR %s\r\n", User_Keyboard_MSG());
+						send(CTRL_SOCK, (uint8_t *)dat, strlen(dat));
+						break;
+					default:
+						printf("Command.First = default\r\n");
+						break;
+				}
+			}
+    		if((size = getSn_RX_RSR(CTRL_SOCK)) > 0){ // Don't need to check SOCKERR_BUSY because it doesn't not occur.
+    			memset(dbuf, 0, _MAX_SS);
+    			if(size > _MAX_SS) size = _MAX_SS - 1;
+    			ret = recv(CTRL_SOCK,dbuf,size);
+    			dbuf[ret] = '\0';
+    			if(ret != size)
+    			{
+    				if(ret==SOCK_BUSY) return 0;
+    				if(ret < 0){
+    					printf("%d:recv() error:%ld\r\n",CTRL_SOCK,ret);
+    					close(CTRL_SOCK);
+    					return ret;
+    				}
+    			}
+    			printf("Rcvd Command: %s\r\n", dbuf);
+    			proc_ftpc((char *)dbuf);
+    		}
+    		break;
+    	case SOCK_CLOSE_WAIT :
+    		printf("%d:CloseWait\r\n",CTRL_SOCK);
+    		if((ret=disconnect(CTRL_SOCK)) != SOCK_OK) return ret;
+    		printf("%d:Closed\r\n",CTRL_SOCK);
+    		break;
+    	case SOCK_CLOSED :
+    		printf("%d:FTPStart\r\n",CTRL_SOCK);
+    		if((ret=socket(CTRL_SOCK, Sn_MR_TCP, FTP_destport, 0x0)) != CTRL_SOCK){
+    			printf("%d:socket() error:%ld\r\n", CTRL_SOCK, ret);
+    			close(CTRL_SOCK);
+    			return ret;
+    		}
+    		break;
+    	case SOCK_INIT :
+    		printf("%d:Opened\r\n",CTRL_SOCK);
+			if((ret = connect(CTRL_SOCK, FTP_destip, FTP_destport)) != SOCK_OK){
+				printf("%d:Connect error\r\n",CTRL_SOCK);
+				return ret;
+			}
+			connect_state_control_ftpc = 0;
+			printf("%d:Connectting...\r\n",CTRL_SOCK);
+			break;
+    	default :
+    		break;
+    }
+
+    switch(getSn_SR(DATA_SOCK)){
+    	case SOCK_ESTABLISHED :
+    		if(!connect_state_data_ftpc){
+    			printf("%d:FTP Data socket Connected\r\n", DATA_SOCK);
+    			connect_state_data_ftpc = 1;
+    		}
+			if(gDataPutGetStart){
+				switch(Command.Second){
+				case s_dir:
+					printf("dir waiting...\r\n");
+					if((size = getSn_RX_RSR(DATA_SOCK)) > 0){ // Don't need to check SOCKERR_BUSY because it doesn't not occur.
+						printf("ok\r\n");
+						memset(dbuf, 0, _MAX_SS);
+						if(size > _MAX_SS) size = _MAX_SS - 1;
+						ret = recv(DATA_SOCK,dbuf,size);
+						dbuf[ret] = '\0';
+						if(ret != size){
+							if(ret==SOCK_BUSY) return 0;
+							if(ret < 0){
+								printf("%d:recv() error:%ld\r\n",CTRL_SOCK,ret);
+								close(DATA_SOCK);
+								return ret;
+							}
+						}
+						printf("Rcvd Data:\n\r%s\n\r", dbuf);
+						gDataPutGetStart = 0;
+						Command.Second = s_nocmd;
+					}
+					break;
+				case s_put:
+					printf("put waiting...\r\n");
+					if(strlen(ftpc.workingdir) == 1)
+						sprintf(ftpc.filename, "/%s", (uint8_t *)gMsgBuf);
+					else
+						sprintf(ftpc.filename, "%s/%s", ftpc.workingdir, (uint8_t *)gMsgBuf);
+#if defined(F_FILESYSTEM)
+					ftpc.fr = f_open(&(ftpc.fil), (const char *)ftpc.filename, FA_READ);
+					if(ftpc.fr == FR_OK){
+						remain_filesize = ftpc.fil.fsize;
+						printf("f_open return FR_OK\r\n");
+						do{
+							memset(dbuf, 0, _MAX_SS);
+							if(remain_filesize > _MAX_SS)
+								send_byte = _MAX_SS;
+							else
+								send_byte = remain_filesize;
+							ftpc.fr = f_read(&(ftpc.fil), (void *)dbuf, send_byte , (UINT *)&blocklen);
+							if(ftpc.fr != FR_OK){
+								break;
+							}
+							printf("#");
+							send(DATA_SOCK, dbuf, blocklen);
+							remain_filesize -= blocklen;
+						}while(remain_filesize != 0);
+						printf("\r\nFile read finished\r\n");
+						ftpc.fr = f_close(&(ftpc.fil));
+					}
+					else{
+						printf("File Open Error: %d\r\n", ftpc.fr);
+						ftpc.fr = f_close(&(ftpc.fil));
+					}
+#else
+					remain_filesize = strlen(ftpc.filename);
+					do{
+						memset(dbuf, 0, _MAX_SS);
+						blocklen = sprintf(dbuf, "%s", ftpc.filename);
+						printf("########## dbuf:%s\r\n", dbuf);
+						send(DATA_SOCK, dbuf, blocklen);
+						remain_filesize -= blocklen;
+					}while(remain_filesize != 0);
+#endif
+					gDataPutGetStart = 0;
+					Command.Second = s_nocmd;
+					disconnect(DATA_SOCK);
+					break;
+				case s_get:
+					printf("get waiting...\r\n");
+					if(strlen(ftpc.workingdir) == 1)
+						sprintf(ftpc.filename, "/%s", (uint8_t *)gMsgBuf);
+					else
+						sprintf(ftpc.filename, "%s/%s", ftpc.workingdir, (uint8_t *)gMsgBuf);
+#if defined(F_FILESYSTEM)
+					ftpc.fr = f_open(&(ftpc.fil), (const char *)ftpc.filename, FA_CREATE_ALWAYS | FA_WRITE);
+					if(ftpc.fr == FR_OK){
+						printf("f_open return FR_OK\r\n");
+						while(1){
+							if((remain_datasize = getSn_RX_RSR(DATA_SOCK)) > 0){
+								while(1){
+									memset(dbuf, 0, _MAX_SS);
+									if(remain_datasize > _MAX_SS)	recv_byte = _MAX_SS;
+									else	recv_byte = remain_datasize;
+									ret = recv(DATA_SOCK, dbuf, recv_byte);
+									ftpc.fr = f_write(&(ftpc.fil), (const void *)dbuf, (UINT)ret, (UINT *)&blocklen);
+									remain_datasize -= blocklen;
+									if(ftpc.fr != FR_OK){
+										printf("f_write failed\r\n");
+										break;
+									}
+									if(remain_datasize <= 0)	break;
+								}
+								if(ftpc.fr != FR_OK){
+									printf("f_write failed\r\n");
+									break;
+								}
+								printf("#");
+							}
+							else{
+								if(getSn_SR(DATA_SOCK) != SOCK_ESTABLISHED)	break;
+							}
+						}
+						printf("\r\nFile write finished\r\n");
+						ftpc.fr = f_close(&(ftpc.fil));
+						gDataPutGetStart = 0;
+					}else{
+						printf("File Open Error: %d\r\n", ftpc.fr);
+					}
+#else
+					while(1){
+						if((remain_datasize = getSn_RX_RSR(DATA_SOCK)) > 0){
+							while(1){
+								memset(dbuf, 0, _MAX_SS);
+								if(remain_datasize > _MAX_SS)
+									recv_byte = _MAX_SS;
+								else
+									recv_byte = remain_datasize;
+								ret = recv(DATA_SOCK, dbuf, recv_byte);
+								printf("########## dbuf:%s\r\n", dbuf);
+								remain_datasize -= ret;
+								if(remain_datasize <= 0)
+									break;
+							}
+						}else{
+							if(getSn_SR(DATA_SOCK) != SOCK_ESTABLISHED)
+								break;
+						}
+					}
+					gDataPutGetStart = 0;
+					Command.Second = s_nocmd;
+#endif
+					break;
+				default:
+					printf("Command.Second = default\r\n");
+					break;
+				}
+			}
+    		break;
+   		case SOCK_CLOSE_WAIT :
+   			printf("%d:CloseWait\r\n",DATA_SOCK);
+			if((ret=disconnect(DATA_SOCK)) != SOCK_OK) return ret;
+			printf("%d:Closed\r\n",DATA_SOCK);
+   			break;
+   		case SOCK_CLOSED :
+   			if(ftpc.dsock_state == DATASOCK_READY){
+   				if(ftpc.dsock_mode == PASSIVE_MODE){
+   					printf("%d:FTPDataStart, port : %d\r\n",DATA_SOCK, local_port);
+   					if((ret=socket(DATA_SOCK, Sn_MR_TCP, local_port, 0x0)) != DATA_SOCK){
+   						printf("%d:socket() error:%ld\r\n", DATA_SOCK, ret);
+   						close(DATA_SOCK);
+   						return ret;
+   					}
+   					local_port++;
+   					if(local_port > 50000)
+   						local_port = 35000;
+   				}else{
+   					printf("%d:FTPDataStart, port : %d\r\n",DATA_SOCK, local_port);
+   					if((ret=socket(DATA_SOCK, Sn_MR_TCP, local_port, 0x0)) != DATA_SOCK){
+   						printf("%d:socket() error:%ld\r\n", DATA_SOCK, ret);
+   						close(DATA_SOCK);
+   						return ret;
+   					}
+   					local_port++;
+   					if(local_port > 50000)
+   						local_port = 35000;
+   				}
+   				ftpc.dsock_state = DATASOCK_START;
+   			}
+   			break;
+
+   		case SOCK_INIT :
+   			printf("%d:Opened\r\n",DATA_SOCK);
+   			if(ftpc.dsock_mode == ACTIVE_MODE){
+   				if( (ret = listen(DATA_SOCK)) != SOCK_OK){
+   					printf("%d:Listen error\r\n",DATA_SOCK);
+   					return ret;
+   				}
+   				gDataSockReady = 1;
+   				printf("%d:Listen ok\r\n",DATA_SOCK);
+   			}else{
+   				if((ret = connect(DATA_SOCK, remote_ip.cVal, remote_port)) != SOCK_OK){
+   					printf("%d:Connect error\r\n", DATA_SOCK);
+   					return ret;
+   				}
+   				gDataSockReady = 1;
+   			}
+   			connect_state_data_ftpc = 0;
+   			break;
+   		default :
+   			break;
+    }
+#endif
+    return 0;
+}
+
+char proc_ftpc(char * buf)
+{
+	uint16_t Responses;
+	uint8_t dat[30]={0,};
+
+	Responses =(buf[0]-'0')*100+(buf[1]-'0')*10+(buf[2]-'0');
+
+	switch(Responses){
+		case R_220:	/* Service ready for new user. */
+			printf("\r\nInput your User ID > ");
+			sprintf(dat,"USER %s\r\n", User_Keyboard_MSG());
+			printf("\r\n");
+			send(CTRL_SOCK, (uint8_t *)dat, strlen(dat));
+			break;
+
+		case R_331:	/* User name okay, need password. */
+			printf("\r\nInput your Password > ");
+			sprintf(dat,"PASS %s\r\n", User_Keyboard_MSG());
+			printf("\r\n");
+			send(CTRL_SOCK, (uint8_t *)dat, strlen(dat));
+			break;
+		case R_230:	/* User logged in, proceed */
+			printf("\r\nUser logged in, proceed\r\n");
+
+			sprintf(dat,"TYPE %c\r\n", TransferAscii);
+			ftpc.type = ASCII_TYPE;
+			send(CTRL_SOCK, (uint8_t *)dat, strlen(dat));
+			break;
+		case R_200:
+			if((ftpc.dsock_mode==ACTIVE_MODE)&&gModeActivePassiveflag){
+				ftpc.dsock_state = DATASOCK_READY;
+				gModeActivePassiveflag = 0;
+			}
+			else{
+				gMenuStart = 1;
+			}
+			break;
+		case R_150:
+			switch(Command.First){
+			case f_dir:
+				Command.First = f_nocmd;
+				Command.Second = s_dir;
+				gDataPutGetStart = 1;
+				break;
+			case f_get:
+				Command.First = f_nocmd;
+				Command.Second = s_get;
+				gDataPutGetStart = 1;
+				break;
+			case f_put:
+				Command.First = f_nocmd;
+				Command.Second = s_put;
+				gDataPutGetStart = 1;
+				break;
+			default :
+				printf("Command.First = default\r\n");
+				break;
+			}
+			break;
+		case R_226:
+			gMenuStart = 1;
+			break;
+		case R_227:
+			if (pportc(buf) == -1){
+				printf("Bad port syntax\r\n");
+			}
+			else{
+				printf("Go Open Data Sock...\r\n ");
+				ftpc.dsock_mode = PASSIVE_MODE;
+				ftpc.dsock_state = DATASOCK_READY;
+			}
+			break;
+		default:
+			printf("\r\nDefault Status = %d\r\n",(uint16_t)Responses);
+			gDataSockReady = 1;
+			break;
+		}
+	return 1;
+}
+int pportc(char * arg)
+{
+	int i;
+	char* tok=0;
+	strtok(arg,"(");
+	for (i = 0; i < 4; i++)
+	{
+		if(i==0) tok = strtok(NULL,",\r\n");
+		else	 tok = strtok(NULL,",");
+		remote_ip.cVal[i] = (uint8_t)atoi(tok, 10);
+		if (!tok){
+			printf("bad pport : %s\r\n", arg);
+			return -1;
+		}
+	}
+	remote_port = 0;
+	for (i = 0; i < 2; i++){
+		tok = strtok(NULL,",\r\n");
+		remote_port <<= 8;
+		remote_port += atoi(tok, 10);
+		if (!tok){
+			printf("bad pport : %s\r\n", arg);
+			return -1;
+		}
+	}
+	printf("ip : %d.%d.%d.%d, port : %d\r\n", remote_ip.cVal[0], remote_ip.cVal[1], remote_ip.cVal[2], remote_ip.cVal[3], remote_port);
+	return 0;
+}
+uint8_t* User_Keyboard_MSG()
+{
+	uint8_t i=0;
+	do{
+		gMsgBuf[i] = ftp_getc();
+		i++;
+	}while(gMsgBuf[i-1]!=0x0d);
+	gMsgBuf[i-1]=0;
+	return gMsgBuf;
+}

Internet/FTPClient/ftpc.h

@@ -0,0 +1,119 @@
+#ifndef _FTPC_H_
+#define _FTPC_H_
+
+#include <stdint.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#include <limits.h>
+#include <stdarg.h>
+#include "stdio_private.h"
+#include "socket.h"
+
+#define F_APP_FTPC
+
+/* If your target support a file system, you have to activate this feature and implement. */
+//#define F_FILESYSTEM
+
+/* Change to your Chipset Uart function, you have to activate this feature and implement.
+ * Change!! -> Board_UARTGetCharBlocking()
+ * Below is an example of a function of lpc_chip library. */
+//#define ftp_getc()	Board_UARTGetCharBlocking()
+
+#ifdef F_FILESYSTEM
+#include "ff.h"
+#endif
+
+#ifndef	ftp_getc()
+#define Need_UARTGetCharBlocking_func
+#else
+/* Change library
+ * Change!! -> board_api.h,
+ * Below is an example of a function of lpc_chip library. */
+#include "board_api.h"
+#endif
+
+
+#define LINELEN		100
+#ifndef F_FILESYSTEM
+#define _MAX_SS		512
+#endif
+
+#define CTRL_SOCK	2
+#define DATA_SOCK	3
+
+/* FTP Responses */
+#define R_150	150		/* File status ok; opening data conn */
+#define R_200	200		/* 'Generic' command ok */
+#define R_220	220		/* Service ready for new user. */
+#define R_226	226		/* Closing data connection.  File transfer/abort successful */
+#define R_227	227		/* Entering passive mode (h1,h2,h3,h4,p1,p2) */
+#define R_230	230		/* User logged in, proceed */
+#define R_331	331		/* User name okay, need password. */
+
+#define TransferAscii		'A'
+#define TransferBinary		'I'
+
+enum ftpc_type {
+	ASCII_TYPE,
+	IMAGE_TYPE,
+};
+
+enum ftpc_datasock_state{
+	DATASOCK_IDLE,
+	DATASOCK_READY,
+	DATASOCK_START
+};
+
+enum ftpc_datasock_mode{
+	PASSIVE_MODE,
+	ACTIVE_MODE
+};
+enum CommandFirst {
+	f_nocmd,
+	f_dir,
+	f_put,
+	f_get,
+};
+enum CommandSecond {
+	s_nocmd,
+	s_dir,
+	s_put,
+	s_get,
+};
+struct Command {
+	enum CommandFirst First;
+	enum CommandSecond Second;
+};
+struct ftpc {
+	uint8_t control;			/* Control stream */
+	uint8_t data;				/* Data stream */
+
+	enum ftpc_type type;		/* Transfer type */
+
+	enum ftpc_datasock_state dsock_state;
+	enum ftpc_datasock_mode dsock_mode;
+
+	char workingdir[LINELEN];
+	char filename[LINELEN];
+
+#ifdef F_FILESYSTEM
+	FIL fil;	// FatFs File objects
+	FRESULT fr;	// FatFs function common result code
+#endif
+};
+
+#ifndef un_I2cval
+typedef union _un_l2cval {
+	uint32_t	lVal;
+	uint8_t		cVal[4];
+}un_l2cval;
+#endif
+
+void ftpc_init(uint8_t * src_ip);
+uint8_t ftpc_run(uint8_t * dbuf);
+char proc_ftpc(char * buf);
+int pportc(char * arg);
+uint8_t* User_Keyboard_MSG();
+
+#endif // _FTPC_H_

Internet/FTPClient/stdio_private.h

@@ -0,0 +1,67 @@
+/* Copyright (c) 2002, Joerg Wunsch
+   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 copyright holders nor the names of
+     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.
+*/
+
+/* $Id: stdio_private.h,v 1.6 2003/01/07 22:17:24 joerg_wunsch Exp $ */
+
+#include <stdint.h>
+#include <stdio.h>
+
+struct __file {
+	char	*buf;		/* buffer pointer */
+	unsigned char unget;	/* ungetc() buffer */
+	uint8_t	flags;		/* flags, see below */
+#define __SRD	0x0001		/* OK to read */
+#define __SWR	0x0002		/* OK to write */
+#define __SSTR	0x0004		/* this is an sprintf/snprintf string */
+#define __SPGM	0x0008		/* fmt string is in progmem */
+#define __SERR	0x0010		/* found error */
+#define __SEOF	0x0020		/* found EOF */
+#define __SUNGET 0x040		/* ungetc() happened */
+#if 0
+/* possible future extensions, will require uint16_t flags */
+#define __SRW	0x0080		/* open for reading & writing */
+#define __SLBF	0x0100		/* line buffered */
+#define __SNBF	0x0200		/* unbuffered */
+#define __SMBF	0x0400		/* buf is from malloc */
+#endif
+	int	size;		/* size of buffer */
+	int	len;		/* characters read or written so far */
+	int	(*put)(char);	/* function to write one char to device */
+	int	(*get)(void);	/* function to read one char from device */
+};
+
+/* values for PRINTF_LEVEL */
+#define PRINTF_MIN 1
+#define PRINTF_STD 2
+#define PRINTF_FLT 3
+
+/* values for SCANF_LEVEL */
+#define SCANF_MIN 1
+#define SCANF_STD 2
+#define SCANF_FLT 3

Internet/FTPServer/ftpd.c

@@ -147,7 +147,7 @@ uint8_t ftpd_run(uint8_t * dbuf)
 {
 	uint16_t size = 0, i;
 	long ret = 0;
-	uint16_t blocklen, send_byte, recv_byte;
+	uint32_t blocklen, send_byte, recv_byte;
 	uint32_t remain_filesize;
 	uint32_t remain_datasize;
 #if defined(F_FILESYSTEM)
@@ -322,7 +322,7 @@ uint8_t ftpd_run(uint8_t * dbuf)
     						else
     							send_byte = remain_filesize;
 
-    						ftp.fr = f_read(&(ftp.fil), dbuf, send_byte , (void *)&blocklen);
+    						ftp.fr = f_read(&(ftp.fil), dbuf, send_byte , &blocklen);
     						if(ftp.fr != FR_OK)
     							break;
 #if defined(_FTP_DEBUG_)
@@ -389,7 +389,7 @@ uint8_t ftpd_run(uint8_t * dbuf)
     								//printf("----->fn:%s data:%s \r\n", ftp.filename, dbuf);
 #endif
 
-    								ftp.fr = f_write(&(ftp.fil), dbuf, (UINT)ret, (void *)&blocklen);
+    								ftp.fr = f_write(&(ftp.fil), dbuf, (UINT)ret, &blocklen);
 #if defined(_FTP_DEBUG_)
     								//printf("----->dsize:%d recv:%d len:%d \r\n", remain_datasize, ret, blocklen);
 #endif

Internet/MQTT/MQTTClient.c

@@ -0,0 +1,583 @@
+/*******************************************************************************
+ * Copyright (c) 2014, 2015 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Allan Stockdill-Mander/Ian Craggs - initial API and implementation and/or initial documentation
+ *******************************************************************************/
+#include "MQTTClient.h"
+
+static void NewMessageData(MessageData* md, MQTTString* aTopicName, MQTTMessage* aMessage) {
+    md->topicName = aTopicName;
+    md->message = aMessage;
+}
+
+
+static int getNextPacketId(MQTTClient *c) {
+    return c->next_packetid = (c->next_packetid == MAX_PACKET_ID) ? 1 : c->next_packetid + 1;
+}
+
+
+static int sendPacket(MQTTClient* c, int length, Timer* timer)
+{
+    int rc = FAILURE, 
+        sent = 0;
+    
+    while (sent < length && !TimerIsExpired(timer))
+    {
+        rc = c->ipstack->mqttwrite(c->ipstack, &c->buf[sent], length, TimerLeftMS(timer));
+        if (rc < 0)  // there was an error writing the data
+            break;
+        sent += rc;
+    }
+    if (sent == length)
+    {
+        TimerCountdown(&c->ping_timer, c->keepAliveInterval); // record the fact that we have successfully sent the packet
+        rc = SUCCESSS;
+    }
+    else
+        rc = FAILURE;
+    return rc;
+}
+
+
+void MQTTClientInit(MQTTClient* c, Network* network, unsigned int command_timeout_ms,
+		unsigned char* sendbuf, size_t sendbuf_size, unsigned char* readbuf, size_t readbuf_size)
+{
+    int i;
+    c->ipstack = network;
+    
+    for (i = 0; i < MAX_MESSAGE_HANDLERS; ++i)
+        c->messageHandlers[i].topicFilter = 0;
+    c->command_timeout_ms = command_timeout_ms;
+    c->buf = sendbuf;
+    c->buf_size = sendbuf_size;
+    c->readbuf = readbuf;
+    c->readbuf_size = readbuf_size;
+    c->isconnected = 0;
+    c->ping_outstanding = 0;
+    c->defaultMessageHandler = NULL;
+	c->next_packetid = 1;
+    TimerInit(&c->ping_timer);
+#if defined(MQTT_TASK)
+	MutexInit(&c->mutex);
+#endif
+}
+
+
+static int decodePacket(MQTTClient* c, int* value, int timeout)
+{
+    unsigned char i;
+    int multiplier = 1;
+    int len = 0;
+    const int MAX_NO_OF_REMAINING_LENGTH_BYTES = 4;
+
+    *value = 0;
+    do
+    {
+        int rc = MQTTPACKET_READ_ERROR;
+
+        if (++len > MAX_NO_OF_REMAINING_LENGTH_BYTES)
+        {
+            rc = MQTTPACKET_READ_ERROR; /* bad data */
+            goto exit;
+        }
+        rc = c->ipstack->mqttread(c->ipstack, &i, 1, timeout);
+        if (rc != 1)
+            goto exit;
+        *value += (i & 127) * multiplier;
+        multiplier *= 128;
+    } while ((i & 128) != 0);
+exit:
+    return len;
+}
+
+
+static int readPacket(MQTTClient* c, Timer* timer)
+{
+    int rc = FAILURE;
+    MQTTHeader header = {0};
+    int len = 0;
+    int rem_len = 0;
+
+    /* 1. read the header byte.  This has the packet type in it */
+    if (c->ipstack->mqttread(c->ipstack, c->readbuf, 1, TimerLeftMS(timer)) != 1)
+        goto exit;
+
+    len = 1;
+    /* 2. read the remaining length.  This is variable in itself */
+    decodePacket(c, &rem_len, TimerLeftMS(timer));
+    len += MQTTPacket_encode(c->readbuf + 1, rem_len); /* put the original remaining length back into the buffer */
+
+    /* 3. read the rest of the buffer using a callback to supply the rest of the data */
+    if (rem_len > 0 && (c->ipstack->mqttread(c->ipstack, c->readbuf + len, rem_len, TimerLeftMS(timer)) != rem_len))
+        goto exit;
+
+    header.byte = c->readbuf[0];
+    rc = header.bits.type;
+exit:
+    return rc;
+}
+
+
+// assume topic filter and name is in correct format
+// # can only be at end
+// + and # can only be next to separator
+static char isTopicMatched(char* topicFilter, MQTTString* topicName)
+{
+    char* curf = topicFilter;
+    char* curn = topicName->lenstring.data;
+    char* curn_end = curn + topicName->lenstring.len;
+    
+    while (*curf && curn < curn_end)
+    {
+        if (*curn == '/' && *curf != '/')
+            break;
+        if (*curf != '+' && *curf != '#' && *curf != *curn)
+            break;
+        if (*curf == '+')
+        {   // skip until we meet the next separator, or end of string
+            char* nextpos = curn + 1;
+            while (nextpos < curn_end && *nextpos != '/')
+                nextpos = ++curn + 1;
+        }
+        else if (*curf == '#')
+            curn = curn_end - 1;    // skip until end of string
+        curf++;
+        curn++;
+    };
+    
+    return (curn == curn_end) && (*curf == '\0');
+}
+
+
+int deliverMessage(MQTTClient* c, MQTTString* topicName, MQTTMessage* message)
+{
+    int i;
+    int rc = FAILURE;
+
+    // we have to find the right message handler - indexed by topic
+    for (i = 0; i < MAX_MESSAGE_HANDLERS; ++i)
+    {
+        if (c->messageHandlers[i].topicFilter != 0 && (MQTTPacket_equals(topicName, (char*)c->messageHandlers[i].topicFilter) ||
+                isTopicMatched((char*)c->messageHandlers[i].topicFilter, topicName)))
+        {
+            if (c->messageHandlers[i].fp != NULL)
+            {
+                MessageData md;
+                NewMessageData(&md, topicName, message);
+                c->messageHandlers[i].fp(&md);
+                rc = SUCCESSS;
+            }
+        }
+    }
+    
+    if (rc == FAILURE && c->defaultMessageHandler != NULL) 
+    {
+        MessageData md;
+        NewMessageData(&md, topicName, message);
+        c->defaultMessageHandler(&md);
+        rc = SUCCESSS;
+    }   
+    
+    return rc;
+}
+
+
+int keepalive(MQTTClient* c)
+{
+    int rc = FAILURE;
+
+    if (c->keepAliveInterval == 0)
+    {
+        rc = SUCCESSS;
+        goto exit;
+    }
+
+    if (TimerIsExpired(&c->ping_timer))
+    {
+        if (!c->ping_outstanding)
+        {
+            Timer timer;
+            TimerInit(&timer);
+            TimerCountdownMS(&timer, 1000);
+            int len = MQTTSerialize_pingreq(c->buf, c->buf_size);
+            if (len > 0 && (rc = sendPacket(c, len, &timer)) == SUCCESSS) // send the ping packet
+                c->ping_outstanding = 1;
+        }
+    }
+
+exit:
+    return rc;
+}
+
+
+int cycle(MQTTClient* c, Timer* timer)
+{
+    // read the socket, see what work is due
+    unsigned short packet_type = readPacket(c, timer);
+    
+    int len = 0,
+        rc = SUCCESSS;
+
+    switch (packet_type)
+    {
+        case CONNACK:
+        case PUBACK:
+        case SUBACK:
+            break;
+        case PUBLISH:
+        {
+            MQTTString topicName;
+            MQTTMessage msg;
+            int intQoS;
+            if (MQTTDeserialize_publish(&msg.dup, &intQoS, &msg.retained, &msg.id, &topicName,
+               (unsigned char**)&msg.payload, (int*)&msg.payloadlen, c->readbuf, c->readbuf_size) != 1)
+                goto exit;
+            msg.qos = (enum QoS)intQoS;
+            deliverMessage(c, &topicName, &msg);
+            if (msg.qos != QOS0)
+            {
+                if (msg.qos == QOS1)
+                    len = MQTTSerialize_ack(c->buf, c->buf_size, PUBACK, 0, msg.id);
+                else if (msg.qos == QOS2)
+                    len = MQTTSerialize_ack(c->buf, c->buf_size, PUBREC, 0, msg.id);
+                if (len <= 0)
+                    rc = FAILURE;
+                else
+                    rc = sendPacket(c, len, timer);
+                if (rc == FAILURE)
+                    goto exit; // there was a problem
+            }
+            break;
+        }
+        case PUBREC:
+        {
+            unsigned short mypacketid;
+            unsigned char dup, type;
+            if (MQTTDeserialize_ack(&type, &dup, &mypacketid, c->readbuf, c->readbuf_size) != 1)
+                rc = FAILURE;
+            else if ((len = MQTTSerialize_ack(c->buf, c->buf_size, PUBREL, 0, mypacketid)) <= 0)
+                rc = FAILURE;
+            else if ((rc = sendPacket(c, len, timer)) != SUCCESSS) // send the PUBREL packet
+                rc = FAILURE; // there was a problem
+            if (rc == FAILURE)
+                goto exit; // there was a problem
+            break;
+        }
+        case PUBCOMP:
+            break;
+        case PINGRESP:
+            c->ping_outstanding = 0;
+            break;
+    }
+    keepalive(c);
+exit:
+    if (rc == SUCCESSS)
+        rc = packet_type;
+    return rc;
+}
+
+
+int MQTTYield(MQTTClient* c, int timeout_ms)
+{
+    int rc = SUCCESSS;
+    Timer timer;
+
+    TimerInit(&timer);
+    TimerCountdownMS(&timer, timeout_ms);
+
+	do
+    {
+        if (cycle(c, &timer) == FAILURE)
+        {
+            rc = FAILURE;
+            break;
+        }
+	} while (!TimerIsExpired(&timer));
+        
+    return rc;
+}
+
+
+void MQTTRun(void* parm)
+{
+	Timer timer;
+	MQTTClient* c = (MQTTClient*)parm;
+
+	TimerInit(&timer);
+
+	while (1)
+	{
+#if defined(MQTT_TASK)
+		MutexLock(&c->mutex);
+#endif
+		TimerCountdownMS(&timer, 500); /* Don't wait too long if no traffic is incoming */
+		cycle(c, &timer);
+#if defined(MQTT_TASK)
+		MutexUnlock(&c->mutex);
+#endif
+	} 
+}
+
+
+#if defined(MQTT_TASK)
+int MQTTStartTask(MQTTClient* client)
+{
+	return ThreadStart(&client->thread, &MQTTRun, client);
+}
+#endif
+
+
+int waitfor(MQTTClient* c, int packet_type, Timer* timer)
+{
+    int rc = FAILURE;
+    
+    do
+    {
+        if (TimerIsExpired(timer))
+            break; // we timed out
+    }
+    while ((rc = cycle(c, timer)) != packet_type);  
+    
+    return rc;
+}
+
+
+int MQTTConnect(MQTTClient* c, MQTTPacket_connectData* options)
+{
+    Timer connect_timer;
+    int rc = FAILURE;
+    MQTTPacket_connectData default_options = MQTTPacket_connectData_initializer;
+    int len = 0;
+
+#if defined(MQTT_TASK)
+	MutexLock(&c->mutex);
+#endif
+	if (c->isconnected) /* don't send connect packet again if we are already connected */
+		goto exit;
+    
+    TimerInit(&connect_timer);
+    TimerCountdownMS(&connect_timer, c->command_timeout_ms);
+
+    if (options == 0)
+        options = &default_options; /* set default options if none were supplied */
+    
+    c->keepAliveInterval = options->keepAliveInterval;
+    TimerCountdown(&c->ping_timer, c->keepAliveInterval);
+    if ((len = MQTTSerialize_connect(c->buf, c->buf_size, options)) <= 0)
+        goto exit;
+    if ((rc = sendPacket(c, len, &connect_timer)) != SUCCESSS)  // send the connect packet
+        goto exit; // there was a problem
+    
+    // this will be a blocking call, wait for the connack
+    if (waitfor(c, CONNACK, &connect_timer) == CONNACK)
+    {
+        unsigned char connack_rc = 255;
+        unsigned char sessionPresent = 0;
+        if (MQTTDeserialize_connack(&sessionPresent, &connack_rc, c->readbuf, c->readbuf_size) == 1)
+            rc = connack_rc;
+        else
+            rc = FAILURE;
+    }
+    else
+        rc = FAILURE;
+    
+exit:
+    if (rc == SUCCESSS)
+        c->isconnected = 1;
+
+#if defined(MQTT_TASK)
+	MutexUnlock(&c->mutex);
+#endif
+
+    return rc;
+}
+
+
+int MQTTSubscribe(MQTTClient* c, const char* topicFilter, enum QoS qos, messageHandler messageHandler)
+{ 
+    int rc = FAILURE;  
+    Timer timer;
+    int len = 0;
+    MQTTString topic = MQTTString_initializer;
+    topic.cstring = (char *)topicFilter;
+    
+#if defined(MQTT_TASK)
+	MutexLock(&c->mutex);
+#endif
+	if (!c->isconnected)
+		goto exit;
+
+    TimerInit(&timer);
+    TimerCountdownMS(&timer, c->command_timeout_ms);
+    
+    len = MQTTSerialize_subscribe(c->buf, c->buf_size, 0, getNextPacketId(c), 1, &topic, (int*)&qos);
+    if (len <= 0)
+        goto exit;
+    if ((rc = sendPacket(c, len, &timer)) != SUCCESSS) // send the subscribe packet
+        goto exit;             // there was a problem
+    
+    if (waitfor(c, SUBACK, &timer) == SUBACK)      // wait for suback 
+    {
+        int count = 0, grantedQoS = -1;
+        unsigned short mypacketid;
+        if (MQTTDeserialize_suback(&mypacketid, 1, &count, &grantedQoS, c->readbuf, c->readbuf_size) == 1)
+            rc = grantedQoS; // 0, 1, 2 or 0x80 
+        if (rc != 0x80)
+        {
+            int i;
+            for (i = 0; i < MAX_MESSAGE_HANDLERS; ++i)
+            {
+                if (c->messageHandlers[i].topicFilter == 0)
+                {
+                    c->messageHandlers[i].topicFilter = topicFilter;
+                    c->messageHandlers[i].fp = messageHandler;
+                    rc = 0;
+                    break;
+                }
+            }
+        }
+    }
+    else 
+        rc = FAILURE;
+        
+exit:
+#if defined(MQTT_TASK)
+	MutexUnlock(&c->mutex);
+#endif
+    return rc;
+}
+
+
+int MQTTUnsubscribe(MQTTClient* c, const char* topicFilter)
+{   
+    int rc = FAILURE;
+    Timer timer;    
+    MQTTString topic = MQTTString_initializer;
+    topic.cstring = (char *)topicFilter;
+    int len = 0;
+
+#if defined(MQTT_TASK)
+	MutexLock(&c->mutex);
+#endif
+	if (!c->isconnected)
+		goto exit;
+
+    TimerInit(&timer);
+    TimerCountdownMS(&timer, c->command_timeout_ms);
+    
+    if ((len = MQTTSerialize_unsubscribe(c->buf, c->buf_size, 0, getNextPacketId(c), 1, &topic)) <= 0)
+        goto exit;
+    if ((rc = sendPacket(c, len, &timer)) != SUCCESSS) // send the subscribe packet
+        goto exit; // there was a problem
+    
+    if (waitfor(c, UNSUBACK, &timer) == UNSUBACK)
+    {
+        unsigned short mypacketid;  // should be the same as the packetid above
+        if (MQTTDeserialize_unsuback(&mypacketid, c->readbuf, c->readbuf_size) == 1)
+            rc = 0; 
+    }
+    else
+        rc = FAILURE;
+    
+exit:
+#if defined(MQTT_TASK)
+	MutexUnlock(&c->mutex);
+#endif
+    return rc;
+}
+
+
+int MQTTPublish(MQTTClient* c, const char* topicName, MQTTMessage* message)
+{
+    int rc = FAILURE;
+    Timer timer;   
+    MQTTString topic = MQTTString_initializer;
+    topic.cstring = (char *)topicName;
+    int len = 0;
+
+#if defined(MQTT_TASK)
+	MutexLock(&c->mutex);
+#endif
+	if (!c->isconnected)
+		goto exit;
+
+    TimerInit(&timer);
+    TimerCountdownMS(&timer, c->command_timeout_ms);
+
+    if (message->qos == QOS1 || message->qos == QOS2)
+        message->id = getNextPacketId(c);
+    
+    len = MQTTSerialize_publish(c->buf, c->buf_size, 0, message->qos, message->retained, message->id, 
+              topic, (unsigned char*)message->payload, message->payloadlen);
+    if (len <= 0)
+        goto exit;
+    if ((rc = sendPacket(c, len, &timer)) != SUCCESSS) // send the subscribe packet
+        goto exit; // there was a problem
+    
+    if (message->qos == QOS1)
+    {
+        if (waitfor(c, PUBACK, &timer) == PUBACK)
+        {
+            unsigned short mypacketid;
+            unsigned char dup, type;
+            if (MQTTDeserialize_ack(&type, &dup, &mypacketid, c->readbuf, c->readbuf_size) != 1)
+                rc = FAILURE;
+        }
+        else
+            rc = FAILURE;
+    }
+    else if (message->qos == QOS2)
+    {
+        if (waitfor(c, PUBCOMP, &timer) == PUBCOMP)
+        {
+            unsigned short mypacketid;
+            unsigned char dup, type;
+            if (MQTTDeserialize_ack(&type, &dup, &mypacketid, c->readbuf, c->readbuf_size) != 1)
+                rc = FAILURE;
+        }
+        else
+            rc = FAILURE;
+    }
+    
+exit:
+#if defined(MQTT_TASK)
+	MutexUnlock(&c->mutex);
+#endif
+    return rc;
+}
+
+
+int MQTTDisconnect(MQTTClient* c)
+{  
+    int rc = FAILURE;
+    Timer timer;     // we might wait for incomplete incoming publishes to complete
+    int len = 0;
+
+#if defined(MQTT_TASK)
+	MutexLock(&c->mutex);
+#endif
+    TimerInit(&timer);
+    TimerCountdownMS(&timer, c->command_timeout_ms);
+
+	len = MQTTSerialize_disconnect(c->buf, c->buf_size);
+    if (len > 0)
+        rc = sendPacket(c, len, &timer);            // send the disconnect packet
+        
+    c->isconnected = 0;
+
+#if defined(MQTT_TASK)
+	MutexUnlock(&c->mutex);
+#endif
+    return rc;
+}
+

Internet/MQTT/MQTTClient.h

@@ -0,0 +1,182 @@
+/*******************************************************************************
+ * Copyright (c) 2014, 2015 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Allan Stockdill-Mander/Ian Craggs - initial API and implementation and/or initial documentation
+ *    Ian Craggs - documentation and platform specific header
+ *******************************************************************************/
+
+#if !defined(__MQTT_CLIENT_C_)
+#define __MQTT_CLIENT_C_
+
+#if defined(__cplusplus)
+ extern "C" {
+#endif
+
+#if defined(WIN32_DLL) || defined(WIN64_DLL)
+  #define DLLImport __declspec(dllimport)
+  #define DLLExport __declspec(dllexport)
+#elif defined(LINUX_SO)
+  #define DLLImport extern
+  #define DLLExport  __attribute__ ((visibility ("default")))
+#else
+  #define DLLImport
+  #define DLLExport
+#endif
+
+#include "./MQTTPacket/src/MQTTPacket.h"
+#include "stdio.h"
+#include "mqtt_interface.h"
+
+#define MAX_PACKET_ID 65535 /* according to the MQTT specification - do not change! */
+
+#if !defined(MAX_MESSAGE_HANDLERS)
+#define MAX_MESSAGE_HANDLERS 5 /* redefinable - how many subscriptions do you want? */
+#endif
+
+enum QoS { QOS0, QOS1, QOS2 };
+
+/* all failure return codes must be negative */
+enum returnCode { BUFFER_OVERFLOW = -2, FAILURE = -1, SUCCESSS = 0 };
+
+/* The Platform specific header must define the Network and Timer structures and functions
+ * which operate on them.
+ *
+typedef struct Network
+{
+	int (*mqttread)(Network*, unsigned char* read_buffer, int, int);
+	int (*mqttwrite)(Network*, unsigned char* send_buffer, int, int);
+} Network;*/
+
+/* The Timer structure must be defined in the platform specific header,
+ * and have the following functions to operate on it.  */
+extern void TimerInit(Timer*);
+extern char TimerIsExpired(Timer*);
+extern void TimerCountdownMS(Timer*, unsigned int);
+extern void TimerCountdown(Timer*, unsigned int);
+extern int TimerLeftMS(Timer*);
+
+typedef struct MQTTMessage
+{
+    enum QoS qos;
+    unsigned char retained;
+    unsigned char dup;
+    unsigned short id;
+    void *payload;
+    size_t payloadlen;
+} MQTTMessage;
+
+typedef struct MessageData
+{
+    MQTTMessage* message;
+    MQTTString* topicName;
+} MessageData;
+
+typedef void (*messageHandler)(MessageData*);
+
+typedef struct MQTTClient
+{
+    unsigned int next_packetid,
+      command_timeout_ms;
+    size_t buf_size,
+      readbuf_size;
+    unsigned char *buf,
+      *readbuf;
+    unsigned int keepAliveInterval;
+    char ping_outstanding;
+    int isconnected;
+
+    struct MessageHandlers
+    {
+        const char* topicFilter;
+        void (*fp) (MessageData*);
+    } messageHandlers[MAX_MESSAGE_HANDLERS];      /* Message handlers are indexed by subscription topic */
+
+    void (*defaultMessageHandler) (MessageData*);
+
+    Network* ipstack;
+    Timer ping_timer;
+#if defined(MQTT_TASK)
+	Mutex mutex;
+	Thread thread;
+#endif 
+} MQTTClient;
+
+#define DefaultClient {0, 0, 0, 0, NULL, NULL, 0, 0, 0}
+
+
+/**
+ * Create an MQTT client object
+ * @param client
+ * @param network
+ * @param command_timeout_ms
+ * @param
+ */
+DLLExport void MQTTClientInit(MQTTClient* client, Network* network, unsigned int command_timeout_ms,
+		unsigned char* sendbuf, size_t sendbuf_size, unsigned char* readbuf, size_t readbuf_size);
+
+/** MQTT Connect - send an MQTT connect packet down the network and wait for a Connack
+ *  The nework object must be connected to the network endpoint before calling this
+ *  @param options - connect options
+ *  @return success code
+ */
+DLLExport int MQTTConnect(MQTTClient* client, MQTTPacket_connectData* options);
+
+/** MQTT Publish - send an MQTT publish packet and wait for all acks to complete for all QoSs
+ *  @param client - the client object to use
+ *  @param topic - the topic to publish to
+ *  @param message - the message to send
+ *  @return success code
+ */
+DLLExport int MQTTPublish(MQTTClient* client, const char*, MQTTMessage*);
+
+/** MQTT Subscribe - send an MQTT subscribe packet and wait for suback before returning.
+ *  @param client - the client object to use
+ *  @param topicFilter - the topic filter to subscribe to
+ *  @param message - the message to send
+ *  @return success code
+ */
+DLLExport int MQTTSubscribe(MQTTClient* client, const char* topicFilter, enum QoS, messageHandler);
+
+/** MQTT Subscribe - send an MQTT unsubscribe packet and wait for unsuback before returning.
+ *  @param client - the client object to use
+ *  @param topicFilter - the topic filter to unsubscribe from
+ *  @return success code
+ */
+DLLExport int MQTTUnsubscribe(MQTTClient* client, const char* topicFilter);
+
+/** MQTT Disconnect - send an MQTT disconnect packet and close the connection
+ *  @param client - the client object to use
+ *  @return success code
+ */
+DLLExport int MQTTDisconnect(MQTTClient* client);
+
+/** MQTT Yield - MQTT background
+ *  @param client - the client object to use
+ *  @param time - the time, in milliseconds, to yield for 
+ *  @return success code
+ */
+DLLExport int MQTTYield(MQTTClient* client, int time);
+
+#if defined(MQTT_TASK)
+/** MQTT start background thread for a client.  After this, MQTTYield should not be called.
+*  @param client - the client object to use
+*  @return success code
+*/
+DLLExport int MQTTStartTask(MQTTClient* client);
+#endif
+
+#if defined(__cplusplus)
+     }
+#endif
+
+#endif

Internet/MQTT/MQTTPacket/src/MQTTConnect.h

@@ -0,0 +1,136 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *    Xiang Rong - 442039 Add makefile to Embedded C client
+ *******************************************************************************/
+
+#ifndef MQTTCONNECT_H_
+#define MQTTCONNECT_H_
+
+#if !defined(DLLImport)
+  #define DLLImport 
+#endif
+#if !defined(DLLExport)
+  #define DLLExport
+#endif
+
+
+typedef union
+{
+	unsigned char all;	/**< all connect flags */
+#if defined(REVERSED)
+	struct
+	{
+		unsigned int username : 1;			/**< 3.1 user name */
+		unsigned int password : 1; 			/**< 3.1 password */
+		unsigned int willRetain : 1;		/**< will retain setting */
+		unsigned int willQoS : 2;				/**< will QoS value */
+		unsigned int will : 1;			    /**< will flag */
+		unsigned int cleansession : 1;	  /**< clean session flag */
+		unsigned int : 1;	  	          /**< unused */
+	} bits;
+#else
+	struct
+	{
+		unsigned int : 1;	     					/**< unused */
+		unsigned int cleansession : 1;	  /**< cleansession flag */
+		unsigned int will : 1;			    /**< will flag */
+		unsigned int willQoS : 2;				/**< will QoS value */
+		unsigned int willRetain : 1;		/**< will retain setting */
+		unsigned int password : 1; 			/**< 3.1 password */
+		unsigned int username : 1;			/**< 3.1 user name */
+	} bits;
+#endif
+} MQTTConnectFlags;	/**< connect flags byte */
+
+
+
+/**
+ * Defines the MQTT "Last Will and Testament" (LWT) settings for
+ * the connect packet.
+ */
+typedef struct
+{
+	/** The eyecatcher for this structure.  must be MQTW. */
+	char struct_id[4];
+	/** The version number of this structure.  Must be 0 */
+	int struct_version;
+	/** The LWT topic to which the LWT message will be published. */
+	MQTTString topicName;
+	/** The LWT payload. */
+	MQTTString message;
+	/**
+      * The retained flag for the LWT message (see MQTTAsync_message.retained).
+      */
+	unsigned char retained;
+	/**
+      * The quality of service setting for the LWT message (see
+      * MQTTAsync_message.qos and @ref qos).
+      */
+	char qos;
+} MQTTPacket_willOptions;
+
+
+#define MQTTPacket_willOptions_initializer { {'M', 'Q', 'T', 'W'}, 0, {NULL, {0, NULL}}, {NULL, {0, NULL}}, 0, 0 }
+
+
+typedef struct
+{
+	/** The eyecatcher for this structure.  must be MQTC. */
+	char struct_id[4];
+	/** The version number of this structure.  Must be 0 */
+	int struct_version;
+	/** Version of MQTT to be used.  3 = 3.1 4 = 3.1.1
+	  */
+	unsigned char MQTTVersion;
+	MQTTString clientID;
+	unsigned short keepAliveInterval;
+	unsigned char cleansession;
+	unsigned char willFlag;
+	MQTTPacket_willOptions will;
+	MQTTString username;
+	MQTTString password;
+} MQTTPacket_connectData;
+
+typedef union
+{
+	unsigned char all;	/**< all connack flags */
+#if defined(REVERSED)
+	struct
+	{
+		unsigned int sessionpresent : 1;    /**< session present flag */
+		unsigned int : 7;	  	          /**< unused */
+	} bits;
+#else
+	struct
+	{
+		unsigned int : 7;	     			/**< unused */
+		unsigned int sessionpresent : 1;    /**< session present flag */
+	} bits;
+#endif
+} MQTTConnackFlags;	/**< connack flags byte */
+
+#define MQTTPacket_connectData_initializer { {'M', 'Q', 'T', 'C'}, 0, 4, {NULL, {0, NULL}}, 60, 1, 0, \
+		MQTTPacket_willOptions_initializer, {NULL, {0, NULL}}, {NULL, {0, NULL}} }
+
+DLLExport int MQTTSerialize_connect(unsigned char* buf, int buflen, MQTTPacket_connectData* options);
+DLLExport int MQTTDeserialize_connect(MQTTPacket_connectData* data, unsigned char* buf, int len);
+
+DLLExport int MQTTSerialize_connack(unsigned char* buf, int buflen, unsigned char connack_rc, unsigned char sessionPresent);
+DLLExport int MQTTDeserialize_connack(unsigned char* sessionPresent, unsigned char* connack_rc, unsigned char* buf, int buflen);
+
+DLLExport int MQTTSerialize_disconnect(unsigned char* buf, int buflen);
+DLLExport int MQTTSerialize_pingreq(unsigned char* buf, int buflen);
+
+#endif /* MQTTCONNECT_H_ */

Internet/MQTT/MQTTPacket/src/MQTTConnectClient.c

@@ -0,0 +1,214 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *******************************************************************************/
+
+#include "MQTTPacket.h"
+#include "StackTrace.h"
+
+#include <string.h>
+
+/**
+  * Determines the length of the MQTT connect packet that would be produced using the supplied connect options.
+  * @param options the options to be used to build the connect packet
+  * @return the length of buffer needed to contain the serialized version of the packet
+  */
+int MQTTSerialize_connectLength(MQTTPacket_connectData* options)
+{
+	int len = 0;
+
+	FUNC_ENTRY;
+
+	if (options->MQTTVersion == 3)
+		len = 12; /* variable depending on MQTT or MQIsdp */
+	else if (options->MQTTVersion == 4)
+		len = 10;
+
+	len += MQTTstrlen(options->clientID)+2;
+	if (options->willFlag)
+		len += MQTTstrlen(options->will.topicName)+2 + MQTTstrlen(options->will.message)+2;
+	if (options->username.cstring || options->username.lenstring.data)
+		len += MQTTstrlen(options->username)+2;
+	if (options->password.cstring || options->password.lenstring.data)
+		len += MQTTstrlen(options->password)+2;
+
+	FUNC_EXIT_RC(len);
+	return len;
+}
+
+
+/**
+  * Serializes the connect options into the buffer.
+  * @param buf the buffer into which the packet will be serialized
+  * @param len the length in bytes of the supplied buffer
+  * @param options the options to be used to build the connect packet
+  * @return serialized length, or error if 0
+  */
+int MQTTSerialize_connect(unsigned char* buf, int buflen, MQTTPacket_connectData* options)
+{
+	unsigned char *ptr = buf;
+	MQTTHeader header = {0};
+	MQTTConnectFlags flags = {0};
+	int len = 0;
+	int rc = -1;
+
+	FUNC_ENTRY;
+	if (MQTTPacket_len(len = MQTTSerialize_connectLength(options)) > buflen)
+	{
+		rc = MQTTPACKET_BUFFER_TOO_SHORT;
+		goto exit;
+	}
+
+	header.byte = 0;
+	header.bits.type = CONNECT;
+	writeChar(&ptr, header.byte); /* write header */
+
+	ptr += MQTTPacket_encode(ptr, len); /* write remaining length */
+
+	if (options->MQTTVersion == 4)
+	{
+		writeCString(&ptr, "MQTT");
+		writeChar(&ptr, (char) 4);
+	}
+	else
+	{
+		writeCString(&ptr, "MQIsdp");
+		writeChar(&ptr, (char) 3);
+	}
+
+	flags.all = 0;
+	flags.bits.cleansession = options->cleansession;
+	flags.bits.will = (options->willFlag) ? 1 : 0;
+	if (flags.bits.will)
+	{
+		flags.bits.willQoS = options->will.qos;
+		flags.bits.willRetain = options->will.retained;
+	}
+
+	if (options->username.cstring || options->username.lenstring.data)
+		flags.bits.username = 1;
+	if (options->password.cstring || options->password.lenstring.data)
+		flags.bits.password = 1;
+
+	writeChar(&ptr, flags.all);
+	writeInt(&ptr, options->keepAliveInterval);
+	writeMQTTString(&ptr, options->clientID);
+	if (options->willFlag)
+	{
+		writeMQTTString(&ptr, options->will.topicName);
+		writeMQTTString(&ptr, options->will.message);
+	}
+	if (flags.bits.username)
+		writeMQTTString(&ptr, options->username);
+	if (flags.bits.password)
+		writeMQTTString(&ptr, options->password);
+
+	rc = ptr - buf;
+
+	exit: FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+
+/**
+  * Deserializes the supplied (wire) buffer into connack data - return code
+  * @param sessionPresent the session present flag returned (only for MQTT 3.1.1)
+  * @param connack_rc returned integer value of the connack return code
+  * @param buf the raw buffer data, of the correct length determined by the remaining length field
+  * @param len the length in bytes of the data in the supplied buffer
+  * @return error code.  1 is success, 0 is failure
+  */
+int MQTTDeserialize_connack(unsigned char* sessionPresent, unsigned char* connack_rc, unsigned char* buf, int buflen)
+{
+	MQTTHeader header = {0};
+	unsigned char* curdata = buf;
+	unsigned char* enddata = NULL;
+	int rc = 0;
+	int mylen;
+	MQTTConnackFlags flags = {0};
+
+	FUNC_ENTRY;
+	header.byte = readChar(&curdata);
+	if (header.bits.type != CONNACK)
+		goto exit;
+
+	curdata += (rc = MQTTPacket_decodeBuf(curdata, &mylen)); /* read remaining length */
+	enddata = curdata + mylen;
+	if (enddata - curdata < 2)
+		goto exit;
+
+	flags.all = readChar(&curdata);
+	*sessionPresent = flags.bits.sessionpresent;
+	*connack_rc = readChar(&curdata);
+
+	rc = 1;
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+
+/**
+  * Serializes a 0-length packet into the supplied buffer, ready for writing to a socket
+  * @param buf the buffer into which the packet will be serialized
+  * @param buflen the length in bytes of the supplied buffer, to avoid overruns
+  * @param packettype the message type
+  * @return serialized length, or error if 0
+  */
+int MQTTSerialize_zero(unsigned char* buf, int buflen, unsigned char packettype)
+{
+	MQTTHeader header = {0};
+	int rc = -1;
+	unsigned char *ptr = buf;
+
+	FUNC_ENTRY;
+	if (buflen < 2)
+	{
+		rc = MQTTPACKET_BUFFER_TOO_SHORT;
+		goto exit;
+	}
+	header.byte = 0;
+	header.bits.type = packettype;
+	writeChar(&ptr, header.byte); /* write header */
+
+	ptr += MQTTPacket_encode(ptr, 0); /* write remaining length */
+	rc = ptr - buf;
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+
+/**
+  * Serializes a disconnect packet into the supplied buffer, ready for writing to a socket
+  * @param buf the buffer into which the packet will be serialized
+  * @param buflen the length in bytes of the supplied buffer, to avoid overruns
+  * @return serialized length, or error if 0
+  */
+int MQTTSerialize_disconnect(unsigned char* buf, int buflen)
+{
+	return MQTTSerialize_zero(buf, buflen, DISCONNECT);
+}
+
+
+/**
+  * Serializes a disconnect packet into the supplied buffer, ready for writing to a socket
+  * @param buf the buffer into which the packet will be serialized
+  * @param buflen the length in bytes of the supplied buffer, to avoid overruns
+  * @return serialized length, or error if 0
+  */
+int MQTTSerialize_pingreq(unsigned char* buf, int buflen)
+{
+	return MQTTSerialize_zero(buf, buflen, PINGREQ);
+}

Internet/MQTT/MQTTPacket/src/MQTTConnectServer.c

@@ -0,0 +1,148 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *******************************************************************************/
+
+#include "StackTrace.h"
+#include "MQTTPacket.h"
+#include <string.h>
+
+#define min(a, b) ((a < b) ? a : b)
+
+
+/**
+  * Validates MQTT protocol name and version combinations
+  * @param protocol the MQTT protocol name as an MQTTString
+  * @param version the MQTT protocol version number, as in the connect packet
+  * @return correct MQTT combination?  1 is true, 0 is false
+  */
+int MQTTPacket_checkVersion(MQTTString* protocol, int version)
+{
+	int rc = 0;
+
+	if (version == 3 && memcmp(protocol->lenstring.data, "MQIsdp",
+			min(6, protocol->lenstring.len)) == 0)
+		rc = 1;
+	else if (version == 4 && memcmp(protocol->lenstring.data, "MQTT",
+			min(4, protocol->lenstring.len)) == 0)
+		rc = 1;
+	return rc;
+}
+
+
+/**
+  * Deserializes the supplied (wire) buffer into connect data structure
+  * @param data the connect data structure to be filled out
+  * @param buf the raw buffer data, of the correct length determined by the remaining length field
+  * @param len the length in bytes of the data in the supplied buffer
+  * @return error code.  1 is success, 0 is failure
+  */
+int MQTTDeserialize_connect(MQTTPacket_connectData* data, unsigned char* buf, int len)
+{
+	MQTTHeader header = {0};
+	MQTTConnectFlags flags = {0};
+	unsigned char* curdata = buf;
+	unsigned char* enddata = &buf[len];
+	int rc = 0;
+	MQTTString Protocol;
+	int version;
+	int mylen = 0;
+
+	FUNC_ENTRY;
+	header.byte = readChar(&curdata);
+	if (header.bits.type != CONNECT)
+		goto exit;
+
+	curdata += MQTTPacket_decodeBuf(curdata, &mylen); /* read remaining length */
+
+	if (!readMQTTLenString(&Protocol, &curdata, enddata) ||
+		enddata - curdata < 0) /* do we have enough data to read the protocol version byte? */
+		goto exit;
+
+	version = (int)readChar(&curdata); /* Protocol version */
+	/* If we don't recognize the protocol version, we don't parse the connect packet on the
+	 * basis that we don't know what the format will be.
+	 */
+	if (MQTTPacket_checkVersion(&Protocol, version))
+	{
+		flags.all = readChar(&curdata);
+		data->cleansession = flags.bits.cleansession;
+		data->keepAliveInterval = readInt(&curdata);
+		if (!readMQTTLenString(&data->clientID, &curdata, enddata))
+			goto exit;
+		data->willFlag = flags.bits.will;
+		if (flags.bits.will)
+		{
+			data->will.qos = flags.bits.willQoS;
+			data->will.retained = flags.bits.willRetain;
+			if (!readMQTTLenString(&data->will.topicName, &curdata, enddata) ||
+				  !readMQTTLenString(&data->will.message, &curdata, enddata))
+				goto exit;
+		}
+		if (flags.bits.username)
+		{
+			if (enddata - curdata < 3 || !readMQTTLenString(&data->username, &curdata, enddata))
+				goto exit; /* username flag set, but no username supplied - invalid */
+			if (flags.bits.password &&
+				(enddata - curdata < 3 || !readMQTTLenString(&data->password, &curdata, enddata)))
+				goto exit; /* password flag set, but no password supplied - invalid */
+		}
+		else if (flags.bits.password)
+			goto exit; /* password flag set without username - invalid */
+		rc = 1;
+	}
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+
+/**
+  * Serializes the connack packet into the supplied buffer.
+  * @param buf the buffer into which the packet will be serialized
+  * @param buflen the length in bytes of the supplied buffer
+  * @param connack_rc the integer connack return code to be used 
+  * @param sessionPresent the MQTT 3.1.1 sessionPresent flag
+  * @return serialized length, or error if 0
+  */
+int MQTTSerialize_connack(unsigned char* buf, int buflen, unsigned char connack_rc, unsigned char sessionPresent)
+{
+	MQTTHeader header = {0};
+	int rc = 0;
+	unsigned char *ptr = buf;
+	MQTTConnackFlags flags = {0};
+
+	FUNC_ENTRY;
+	if (buflen < 2)
+	{
+		rc = MQTTPACKET_BUFFER_TOO_SHORT;
+		goto exit;
+	}
+	header.byte = 0;
+	header.bits.type = CONNACK;
+	writeChar(&ptr, header.byte); /* write header */
+
+	ptr += MQTTPacket_encode(ptr, 2); /* write remaining length */
+
+	flags.all = 0;
+	flags.bits.sessionpresent = sessionPresent;
+	writeChar(&ptr, flags.all); 
+	writeChar(&ptr, connack_rc);
+
+	rc = ptr - buf;
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+

Internet/MQTT/MQTTPacket/src/MQTTDeserializePublish.c

@@ -0,0 +1,107 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *******************************************************************************/
+
+#include "StackTrace.h"
+#include "MQTTPacket.h"
+#include <string.h>
+
+#define min(a, b) ((a < b) ? 1 : 0)
+
+/**
+  * Deserializes the supplied (wire) buffer into publish data
+  * @param dup returned integer - the MQTT dup flag
+  * @param qos returned integer - the MQTT QoS value
+  * @param retained returned integer - the MQTT retained flag
+  * @param packetid returned integer - the MQTT packet identifier
+  * @param topicName returned MQTTString - the MQTT topic in the publish
+  * @param payload returned byte buffer - the MQTT publish payload
+  * @param payloadlen returned integer - the length of the MQTT payload
+  * @param buf the raw buffer data, of the correct length determined by the remaining length field
+  * @param buflen the length in bytes of the data in the supplied buffer
+  * @return error code.  1 is success
+  */
+int MQTTDeserialize_publish(unsigned char* dup, int* qos, unsigned char* retained, unsigned short* packetid, MQTTString* topicName,
+		unsigned char** payload, int* payloadlen, unsigned char* buf, int buflen)
+{
+	MQTTHeader header = {0};
+	unsigned char* curdata = buf;
+	unsigned char* enddata = NULL;
+	int rc = 0;
+	int mylen = 0;
+
+	FUNC_ENTRY;
+	header.byte = readChar(&curdata);
+	if (header.bits.type != PUBLISH)
+		goto exit;
+	*dup = header.bits.dup;
+	*qos = header.bits.qos;
+	*retained = header.bits.retain;
+
+	curdata += (rc = MQTTPacket_decodeBuf(curdata, &mylen)); /* read remaining length */
+	enddata = curdata + mylen;
+
+	if (!readMQTTLenString(topicName, &curdata, enddata) ||
+		enddata - curdata < 0) /* do we have enough data to read the protocol version byte? */
+		goto exit;
+
+	if (*qos > 0)
+		*packetid = readInt(&curdata);
+
+	*payloadlen = enddata - curdata;
+	*payload = curdata;
+	rc = 1;
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+
+
+/**
+  * Deserializes the supplied (wire) buffer into an ack
+  * @param packettype returned integer - the MQTT packet type
+  * @param dup returned integer - the MQTT dup flag
+  * @param packetid returned integer - the MQTT packet identifier
+  * @param buf the raw buffer data, of the correct length determined by the remaining length field
+  * @param buflen the length in bytes of the data in the supplied buffer
+  * @return error code.  1 is success, 0 is failure
+  */
+int MQTTDeserialize_ack(unsigned char* packettype, unsigned char* dup, unsigned short* packetid, unsigned char* buf, int buflen)
+{
+	MQTTHeader header = {0};
+	unsigned char* curdata = buf;
+	unsigned char* enddata = NULL;
+	int rc = 0;
+	int mylen;
+
+	FUNC_ENTRY;
+	header.byte = readChar(&curdata);
+	*dup = header.bits.dup;
+	*packettype = header.bits.type;
+
+	curdata += (rc = MQTTPacket_decodeBuf(curdata, &mylen)); /* read remaining length */
+	enddata = curdata + mylen;
+
+	if (enddata - curdata < 2)
+		goto exit;
+	*packetid = readInt(&curdata);
+
+	rc = 1;
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+

Internet/MQTT/MQTTPacket/src/MQTTFormat.c

@@ -0,0 +1,258 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *******************************************************************************/
+
+#include "StackTrace.h"
+#include "MQTTPacket.h"
+
+#include <string.h>
+
+
+const char* MQTTPacket_names[] =
+{
+	"RESERVED", "CONNECT", "CONNACK", "PUBLISH", "PUBACK", "PUBREC", "PUBREL",
+	"PUBCOMP", "SUBSCRIBE", "SUBACK", "UNSUBSCRIBE", "UNSUBACK",
+	"PINGREQ", "PINGRESP", "DISCONNECT"
+};
+
+
+const char* MQTTPacket_getName(unsigned short packetid)
+{
+	return MQTTPacket_names[packetid];
+}
+
+
+int MQTTStringFormat_connect(char* strbuf, int strbuflen, MQTTPacket_connectData* data)
+{
+	int strindex = 0;
+
+	strindex = snprintf(strbuf, strbuflen,
+			"CONNECT MQTT version %d, client id %.*s, clean session %d, keep alive %d",
+			(int)data->MQTTVersion, data->clientID.lenstring.len, data->clientID.lenstring.data,
+			(int)data->cleansession, data->keepAliveInterval);
+	if (data->willFlag)
+		strindex += snprintf(&strbuf[strindex], strbuflen - strindex,
+				", will QoS %d, will retain %d, will topic %.*s, will message %.*s",
+				data->will.qos, data->will.retained,
+				data->will.topicName.lenstring.len, data->will.topicName.lenstring.data,
+				data->will.message.lenstring.len, data->will.message.lenstring.data);
+	if (data->username.lenstring.data && data->username.lenstring.len > 0)
+		strindex += snprintf(&strbuf[strindex], strbuflen - strindex,
+				", user name %.*s", data->username.lenstring.len, data->username.lenstring.data);
+	if (data->password.lenstring.data && data->password.lenstring.len > 0)
+		strindex += snprintf(&strbuf[strindex], strbuflen - strindex,
+				", password %.*s", data->password.lenstring.len, data->password.lenstring.data);
+	return strindex;
+}
+
+
+int MQTTStringFormat_connack(char* strbuf, int strbuflen, unsigned char connack_rc, unsigned char sessionPresent)
+{
+	int strindex = snprintf(strbuf, strbuflen, "CONNACK session present %d, rc %d", sessionPresent, connack_rc);
+	return strindex;
+}
+
+
+int MQTTStringFormat_publish(char* strbuf, int strbuflen, unsigned char dup, int qos, unsigned char retained,
+		unsigned short packetid, MQTTString topicName, unsigned char* payload, int payloadlen)
+{
+	int strindex = snprintf(strbuf, strbuflen,
+				"PUBLISH dup %d, QoS %d, retained %d, packet id %d, topic %.*s, payload length %d, payload %.*s",
+				dup, qos, retained, packetid,
+				(topicName.lenstring.len < 20) ? topicName.lenstring.len : 20, topicName.lenstring.data,
+				payloadlen, (payloadlen < 20) ? payloadlen : 20, payload);
+	return strindex;
+}
+
+
+int MQTTStringFormat_ack(char* strbuf, int strbuflen, unsigned char packettype, unsigned char dup, unsigned short packetid)
+{
+	int strindex = snprintf(strbuf, strbuflen, "%s, packet id %d", MQTTPacket_names[packettype], packetid);
+	if (dup)
+		strindex += snprintf(strbuf + strindex, strbuflen - strindex, ", dup %d", dup);
+	return strindex;
+}
+
+
+int MQTTStringFormat_subscribe(char* strbuf, int strbuflen, unsigned char dup, unsigned short packetid, int count,
+		MQTTString topicFilters[], int requestedQoSs[])
+{
+	return snprintf(strbuf, strbuflen,
+		"SUBSCRIBE dup %d, packet id %d count %d topic %.*s qos %d",
+		dup, packetid, count,
+		topicFilters[0].lenstring.len, topicFilters[0].lenstring.data,
+		requestedQoSs[0]);
+}
+
+
+int MQTTStringFormat_suback(char* strbuf, int strbuflen, unsigned short packetid, int count, int* grantedQoSs)
+{
+	return snprintf(strbuf, strbuflen,
+		"SUBACK packet id %d count %d granted qos %d", packetid, count, grantedQoSs[0]);
+}
+
+
+int MQTTStringFormat_unsubscribe(char* strbuf, int strbuflen, unsigned char dup, unsigned short packetid,
+		int count, MQTTString topicFilters[])
+{
+	return snprintf(strbuf, strbuflen,
+					"UNSUBSCRIBE dup %d, packet id %d count %d topic %.*s",
+					dup, packetid, count,
+					topicFilters[0].lenstring.len, topicFilters[0].lenstring.data);
+}
+
+
+char* MQTTFormat_toClientString(char* strbuf, int strbuflen, unsigned char* buf, int buflen)
+{
+	int index = 0;
+	int rem_length = 0;
+	MQTTHeader header = {0};
+	int strindex = 0;
+
+	header.byte = buf[index++];
+	index += MQTTPacket_decodeBuf(&buf[index], &rem_length);
+
+	switch (header.bits.type)
+	{
+	case CONNACK:
+	{
+		unsigned char sessionPresent, connack_rc;
+		if (MQTTDeserialize_connack(&sessionPresent, &connack_rc, buf, buflen) == 1)
+			strindex = MQTTStringFormat_connack(strbuf, strbuflen, connack_rc, sessionPresent);
+	}
+	break;
+	case PUBLISH:
+	{
+		unsigned char dup, retained, *payload;
+		unsigned short packetid;
+		int qos, payloadlen;
+		MQTTString topicName = MQTTString_initializer;
+		if (MQTTDeserialize_publish(&dup, &qos, &retained, &packetid, &topicName,
+				&payload, &payloadlen, buf, buflen) == 1)
+			strindex = MQTTStringFormat_publish(strbuf, strbuflen, dup, qos, retained, packetid,
+					topicName, payload, payloadlen);
+	}
+	break;
+	case PUBACK:
+	case PUBREC:
+	case PUBREL:
+	case PUBCOMP:
+	{
+		unsigned char packettype, dup;
+		unsigned short packetid;
+		if (MQTTDeserialize_ack(&packettype, &dup, &packetid, buf, buflen) == 1)
+			strindex = MQTTStringFormat_ack(strbuf, strbuflen, packettype, dup, packetid);
+	}
+	break;
+	case SUBACK:
+	{
+		unsigned short packetid;
+		int maxcount = 1, count = 0;
+		int grantedQoSs[1];
+		if (MQTTDeserialize_suback(&packetid, maxcount, &count, grantedQoSs, buf, buflen) == 1)
+			strindex = MQTTStringFormat_suback(strbuf, strbuflen, packetid, count, grantedQoSs);
+	}
+	break;
+	case UNSUBACK:
+	{
+		unsigned short packetid;
+		if (MQTTDeserialize_unsuback(&packetid, buf, buflen) == 1)
+			strindex = MQTTStringFormat_ack(strbuf, strbuflen, UNSUBACK, 0, packetid);
+	}
+	break;
+	case PINGREQ:
+	case PINGRESP:
+	case DISCONNECT:
+		strindex = snprintf(strbuf, strbuflen, "%s", MQTTPacket_names[header.bits.type]);
+		break;
+	}
+	return strbuf;
+}
+
+
+char* MQTTFormat_toServerString(char* strbuf, int strbuflen, unsigned char* buf, int buflen)
+{
+	int index = 0;
+	int rem_length = 0;
+	MQTTHeader header = {0};
+	int strindex = 0;
+
+	header.byte = buf[index++];
+	index += MQTTPacket_decodeBuf(&buf[index], &rem_length);
+
+	switch (header.bits.type)
+	{
+	case CONNECT:
+	{
+		MQTTPacket_connectData data;
+		int rc;
+		if ((rc = MQTTDeserialize_connect(&data, buf, buflen)) == 1)
+			strindex = MQTTStringFormat_connect(strbuf, strbuflen, &data);
+	}
+	break;
+	case PUBLISH:
+	{
+		unsigned char dup, retained, *payload;
+		unsigned short packetid;
+		int qos, payloadlen;
+		MQTTString topicName = MQTTString_initializer;
+		if (MQTTDeserialize_publish(&dup, &qos, &retained, &packetid, &topicName,
+				&payload, &payloadlen, buf, buflen) == 1)
+			strindex = MQTTStringFormat_publish(strbuf, strbuflen, dup, qos, retained, packetid,
+					topicName, payload, payloadlen);
+	}
+	break;
+	case PUBACK:
+	case PUBREC:
+	case PUBREL:
+	case PUBCOMP:
+	{
+		unsigned char packettype, dup;
+		unsigned short packetid;
+		if (MQTTDeserialize_ack(&packettype, &dup, &packetid, buf, buflen) == 1)
+			strindex = MQTTStringFormat_ack(strbuf, strbuflen, packettype, dup, packetid);
+	}
+	break;
+	case SUBSCRIBE:
+	{
+		unsigned char dup;
+		unsigned short packetid;
+		int maxcount = 1, count = 0;
+		MQTTString topicFilters[1];
+		int requestedQoSs[1];
+		if (MQTTDeserialize_subscribe(&dup, &packetid, maxcount, &count,
+				topicFilters, requestedQoSs, buf, buflen) == 1)
+			strindex = MQTTStringFormat_subscribe(strbuf, strbuflen, dup, packetid, count, topicFilters, requestedQoSs);;
+	}
+	break;
+	case UNSUBSCRIBE:
+	{
+		unsigned char dup;
+		unsigned short packetid;
+		int maxcount = 1, count = 0;
+		MQTTString topicFilters[1];
+		if (MQTTDeserialize_unsubscribe(&dup, &packetid, maxcount, &count, topicFilters, buf, buflen) == 1)
+			strindex =  MQTTStringFormat_unsubscribe(strbuf, strbuflen, dup, packetid, count, topicFilters);
+	}
+	break;
+	case PINGREQ:
+	case PINGRESP:
+	case DISCONNECT:
+		strindex = snprintf(strbuf, strbuflen, "%s", MQTTPacket_names[header.bits.type]);
+		break;
+	}
+	strbuf[strbuflen] = '\0';
+	return strbuf;
+}

Internet/MQTT/MQTTPacket/src/MQTTFormat.h

@@ -0,0 +1,37 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *******************************************************************************/
+
+#if !defined(MQTTFORMAT_H)
+#define MQTTFORMAT_H
+
+#include "StackTrace.h"
+#include "MQTTPacket.h"
+
+const char* MQTTPacket_getName(unsigned short packetid);
+int MQTTStringFormat_connect(char* strbuf, int strbuflen, MQTTPacket_connectData* data);
+int MQTTStringFormat_connack(char* strbuf, int strbuflen, unsigned char connack_rc, unsigned char sessionPresent);
+int MQTTStringFormat_publish(char* strbuf, int strbuflen, unsigned char dup, int qos, unsigned char retained,
+		unsigned short packetid, MQTTString topicName, unsigned char* payload, int payloadlen);
+int MQTTStringFormat_ack(char* strbuf, int strbuflen, unsigned char packettype, unsigned char dup, unsigned short packetid);
+int MQTTStringFormat_subscribe(char* strbuf, int strbuflen, unsigned char dup, unsigned short packetid, int count,
+		MQTTString topicFilters[], int requestedQoSs[]);
+int MQTTStringFormat_suback(char* strbuf, int strbuflen, unsigned short packetid, int count, int* grantedQoSs);
+int MQTTStringFormat_unsubscribe(char* strbuf, int strbuflen, unsigned char dup, unsigned short packetid,
+		int count, MQTTString topicFilters[]);
+char* MQTTFormat_toClientString(char* strbuf, int strbuflen, unsigned char* buf, int buflen);
+char* MQTTFormat_toServerString(char* strbuf, int strbuflen, unsigned char* buf, int buflen);
+
+#endif

Internet/MQTT/MQTTPacket/src/MQTTPacket.c

@@ -0,0 +1,410 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *    Sergio R. Caprile - non-blocking packet read functions for stream transport
+ *******************************************************************************/
+
+#include "StackTrace.h"
+#include "MQTTPacket.h"
+
+#include <string.h>
+
+/**
+ * Encodes the message length according to the MQTT algorithm
+ * @param buf the buffer into which the encoded data is written
+ * @param length the length to be encoded
+ * @return the number of bytes written to buffer
+ */
+int MQTTPacket_encode(unsigned char* buf, int length)
+{
+	int rc = 0;
+
+	FUNC_ENTRY;
+	do
+	{
+		char d = length % 128;
+		length /= 128;
+		/* if there are more digits to encode, set the top bit of this digit */
+		if (length > 0)
+			d |= 0x80;
+		buf[rc++] = d;
+	} while (length > 0);
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+
+/**
+ * Decodes the message length according to the MQTT algorithm
+ * @param getcharfn pointer to function to read the next character from the data source
+ * @param value the decoded length returned
+ * @return the number of bytes read from the socket
+ */
+int MQTTPacket_decode(int (*getcharfn)(unsigned char*, int), int* value)
+{
+	unsigned char c;
+	int multiplier = 1;
+	int len = 0;
+#define MAX_NO_OF_REMAINING_LENGTH_BYTES 4
+
+	FUNC_ENTRY;
+	*value = 0;
+	do
+	{
+		int rc = MQTTPACKET_READ_ERROR;
+
+		if (++len > MAX_NO_OF_REMAINING_LENGTH_BYTES)
+		{
+			rc = MQTTPACKET_READ_ERROR;	/* bad data */
+			goto exit;
+		}
+		rc = (*getcharfn)(&c, 1);
+		if (rc != 1)
+			goto exit;
+		*value += (c & 127) * multiplier;
+		multiplier *= 128;
+	} while ((c & 128) != 0);
+exit:
+	FUNC_EXIT_RC(len);
+	return len;
+}
+
+
+int MQTTPacket_len(int rem_len)
+{
+	rem_len += 1; /* header byte */
+
+	/* now remaining_length field */
+	if (rem_len < 128)
+		rem_len += 1;
+	else if (rem_len < 16384)
+		rem_len += 2;
+	else if (rem_len < 2097151)
+		rem_len += 3;
+	else
+		rem_len += 4;
+	return rem_len;
+}
+
+
+static unsigned char* bufptr;
+
+int bufchar(unsigned char* c, int count)
+{
+	int i;
+
+	for (i = 0; i < count; ++i)
+		*c = *bufptr++;
+	return count;
+}
+
+
+int MQTTPacket_decodeBuf(unsigned char* buf, int* value)
+{
+	bufptr = buf;
+	return MQTTPacket_decode(bufchar, value);
+}
+
+
+/**
+ * Calculates an integer from two bytes read from the input buffer
+ * @param pptr pointer to the input buffer - incremented by the number of bytes used & returned
+ * @return the integer value calculated
+ */
+int readInt(unsigned char** pptr)
+{
+	unsigned char* ptr = *pptr;
+	int len = 256*(*ptr) + (*(ptr+1));
+	*pptr += 2;
+	return len;
+}
+
+
+/**
+ * Reads one character from the input buffer.
+ * @param pptr pointer to the input buffer - incremented by the number of bytes used & returned
+ * @return the character read
+ */
+char readChar(unsigned char** pptr)
+{
+	char c = **pptr;
+	(*pptr)++;
+	return c;
+}
+
+
+/**
+ * Writes one character to an output buffer.
+ * @param pptr pointer to the output buffer - incremented by the number of bytes used & returned
+ * @param c the character to write
+ */
+void writeChar(unsigned char** pptr, char c)
+{
+	**pptr = c;
+	(*pptr)++;
+}
+
+
+/**
+ * Writes an integer as 2 bytes to an output buffer.
+ * @param pptr pointer to the output buffer - incremented by the number of bytes used & returned
+ * @param anInt the integer to write
+ */
+void writeInt(unsigned char** pptr, int anInt)
+{
+	**pptr = (unsigned char)(anInt / 256);
+	(*pptr)++;
+	**pptr = (unsigned char)(anInt % 256);
+	(*pptr)++;
+}
+
+
+/**
+ * Writes a "UTF" string to an output buffer.  Converts C string to length-delimited.
+ * @param pptr pointer to the output buffer - incremented by the number of bytes used & returned
+ * @param string the C string to write
+ */
+void writeCString(unsigned char** pptr, const char* string)
+{
+	int len = strlen(string);
+	writeInt(pptr, len);
+	memcpy(*pptr, string, len);
+	*pptr += len;
+}
+
+
+int getLenStringLen(char* ptr)
+{
+	int len = 256*((unsigned char)(*ptr)) + (unsigned char)(*(ptr+1));
+	return len;
+}
+
+
+void writeMQTTString(unsigned char** pptr, MQTTString mqttstring)
+{
+	if (mqttstring.lenstring.len > 0)
+	{
+		writeInt(pptr, mqttstring.lenstring.len);
+		memcpy(*pptr, mqttstring.lenstring.data, mqttstring.lenstring.len);
+		*pptr += mqttstring.lenstring.len;
+	}
+	else if (mqttstring.cstring)
+		writeCString(pptr, mqttstring.cstring);
+	else
+		writeInt(pptr, 0);
+}
+
+
+/**
+ * @param mqttstring the MQTTString structure into which the data is to be read
+ * @param pptr pointer to the output buffer - incremented by the number of bytes used & returned
+ * @param enddata pointer to the end of the data: do not read beyond
+ * @return 1 if successful, 0 if not
+ */
+int readMQTTLenString(MQTTString* mqttstring, unsigned char** pptr, unsigned char* enddata)
+{
+	int rc = 0;
+
+	FUNC_ENTRY;
+	/* the first two bytes are the length of the string */
+	if (enddata - (*pptr) > 1) /* enough length to read the integer? */
+	{
+		mqttstring->lenstring.len = readInt(pptr); /* increments pptr to point past length */
+		if (&(*pptr)[mqttstring->lenstring.len] <= enddata)
+		{
+			mqttstring->lenstring.data = (char*)*pptr;
+			*pptr += mqttstring->lenstring.len;
+			rc = 1;
+		}
+	}
+	mqttstring->cstring = NULL;
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+
+/**
+ * Return the length of the MQTTstring - C string if there is one, otherwise the length delimited string
+ * @param mqttstring the string to return the length of
+ * @return the length of the string
+ */
+int MQTTstrlen(MQTTString mqttstring)
+{
+	int rc = 0;
+
+	if (mqttstring.cstring)
+		rc = strlen(mqttstring.cstring);
+	else
+		rc = mqttstring.lenstring.len;
+	return rc;
+}
+
+
+/**
+ * Compares an MQTTString to a C string
+ * @param a the MQTTString to compare
+ * @param bptr the C string to compare
+ * @return boolean - equal or not
+ */
+int MQTTPacket_equals(MQTTString* a, char* bptr)
+{
+	int alen = 0,
+		blen = 0;
+	char *aptr;
+	
+	if (a->cstring)
+	{
+		aptr = a->cstring;
+		alen = strlen(a->cstring);
+	}
+	else
+	{
+		aptr = a->lenstring.data;
+		alen = a->lenstring.len;
+	}
+	blen = strlen(bptr);
+	
+	return (alen == blen) && (strncmp(aptr, bptr, alen) == 0);
+}
+
+
+/**
+ * Helper function to read packet data from some source into a buffer
+ * @param buf the buffer into which the packet will be serialized
+ * @param buflen the length in bytes of the supplied buffer
+ * @param getfn pointer to a function which will read any number of bytes from the needed source
+ * @return integer MQTT packet type, or -1 on error
+ * @note  the whole message must fit into the caller's buffer
+ */
+int MQTTPacket_read(unsigned char* buf, int buflen, int (*getfn)(unsigned char*, int))
+{
+	int rc = -1;
+	MQTTHeader header = {0};
+	int len = 0;
+	int rem_len = 0;
+
+	/* 1. read the header byte.  This has the packet type in it */
+	if ((*getfn)(buf, 1) != 1)
+		goto exit;
+
+	len = 1;
+	/* 2. read the remaining length.  This is variable in itself */
+	MQTTPacket_decode(getfn, &rem_len);
+	len += MQTTPacket_encode(buf + 1, rem_len); /* put the original remaining length back into the buffer */
+
+	/* 3. read the rest of the buffer using a callback to supply the rest of the data */
+	if((rem_len + len) > buflen)
+		goto exit;
+	if ((*getfn)(buf + len, rem_len) != rem_len)
+		goto exit;
+
+	header.byte = buf[0];
+	rc = header.bits.type;
+exit:
+	return rc;
+}
+
+/**
+ * Decodes the message length according to the MQTT algorithm, non-blocking
+ * @param trp pointer to a transport structure holding what is needed to solve getting data from it
+ * @param value the decoded length returned
+ * @return integer the number of bytes read from the socket, 0 for call again, or -1 on error
+ */
+static int MQTTPacket_decodenb(MQTTTransport *trp)
+{
+	unsigned char c;
+	int rc = MQTTPACKET_READ_ERROR;
+
+	FUNC_ENTRY;
+	if(trp->len == 0){		/* initialize on first call */
+		trp->multiplier = 1;
+		trp->rem_len = 0;
+	}
+	do {
+		int frc;
+		if (++(trp->len) > MAX_NO_OF_REMAINING_LENGTH_BYTES)
+			goto exit;
+		if ((frc=(*trp->getfn)(trp->sck, &c, 1)) == -1)
+			goto exit;
+		if (frc == 0){
+			rc = 0;
+			goto exit;
+		}
+		trp->rem_len += (c & 127) * trp->multiplier;
+		trp->multiplier *= 128;
+	} while ((c & 128) != 0);
+	rc = trp->len;
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+/**
+ * Helper function to read packet data from some source into a buffer, non-blocking
+ * @param buf the buffer into which the packet will be serialized
+ * @param buflen the length in bytes of the supplied buffer
+ * @param trp pointer to a transport structure holding what is needed to solve getting data from it
+ * @return integer MQTT packet type, 0 for call again, or -1 on error
+ * @note  the whole message must fit into the caller's buffer
+ */
+int MQTTPacket_readnb(unsigned char* buf, int buflen, MQTTTransport *trp)
+{
+	int rc = -1, frc;
+	MQTTHeader header = {0};
+
+	switch(trp->state){
+	default:
+		trp->state = 0;
+		/*FALLTHROUGH*/
+	case 0:
+		/* read the header byte.  This has the packet type in it */
+		if ((frc=(*trp->getfn)(trp->sck, buf, 1)) == -1)
+			goto exit;
+		if (frc == 0)
+			return 0;
+		trp->len = 0;
+		++trp->state;
+		/*FALLTHROUGH*/
+		/* read the remaining length.  This is variable in itself */
+	case 1:
+		if((frc=MQTTPacket_decodenb(trp)) == MQTTPACKET_READ_ERROR)
+			goto exit;
+		if(frc == 0)
+			return 0;
+		trp->len = 1 + MQTTPacket_encode(buf + 1, trp->rem_len); /* put the original remaining length back into the buffer */
+		if((trp->rem_len + trp->len) > buflen)
+			goto exit;
+		++trp->state;
+		/*FALLTHROUGH*/
+	case 2:
+		/* read the rest of the buffer using a callback to supply the rest of the data */
+		if ((frc=(*trp->getfn)(trp->sck, buf + trp->len, trp->rem_len)) == -1)
+			goto exit;
+		if (frc == 0)
+			return 0;
+		trp->rem_len -= frc;
+		trp->len += frc;
+		if(trp->rem_len)
+			return 0;
+
+		header.byte = buf[0];
+		rc = header.bits.type;
+		break;
+	}
+
+exit:
+	trp->state = 0;
+	return rc;
+}
+

Internet/MQTT/MQTTPacket/src/MQTTPacket.h

@@ -0,0 +1,133 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *    Xiang Rong - 442039 Add makefile to Embedded C client
+ *******************************************************************************/
+
+#ifndef MQTTPACKET_H_
+#define MQTTPACKET_H_
+
+#if defined(__cplusplus) /* If this is a C++ compiler, use C linkage */
+extern "C" {
+#endif
+
+#if defined(WIN32_DLL) || defined(WIN64_DLL)
+  #define DLLImport __declspec(dllimport)
+  #define DLLExport __declspec(dllexport)
+#elif defined(LINUX_SO)
+  #define DLLImport extern
+  #define DLLExport  __attribute__ ((visibility ("default")))
+#else
+  #define DLLImport
+  #define DLLExport  
+#endif
+
+enum errors
+{
+	MQTTPACKET_BUFFER_TOO_SHORT = -2,
+	MQTTPACKET_READ_ERROR = -1,
+	MQTTPACKET_READ_COMPLETE
+};
+
+enum msgTypes
+{
+	CONNECT = 1, CONNACK, PUBLISH, PUBACK, PUBREC, PUBREL,
+	PUBCOMP, SUBSCRIBE, SUBACK, UNSUBSCRIBE, UNSUBACK,
+	PINGREQ, PINGRESP, DISCONNECT
+};
+
+/**
+ * Bitfields for the MQTT header byte.
+ */
+typedef union
+{
+	unsigned char byte;	                /**< the whole byte */
+#if defined(REVERSED)
+	struct
+	{
+		unsigned int type : 4;			/**< message type nibble */
+		unsigned int dup : 1;				/**< DUP flag bit */
+		unsigned int qos : 2;				/**< QoS value, 0, 1 or 2 */
+		unsigned int retain : 1;		/**< retained flag bit */
+	} bits;
+#else
+	struct
+	{
+		unsigned int retain : 1;		/**< retained flag bit */
+		unsigned int qos : 2;				/**< QoS value, 0, 1 or 2 */
+		unsigned int dup : 1;				/**< DUP flag bit */
+		unsigned int type : 4;			/**< message type nibble */
+	} bits;
+#endif
+} MQTTHeader;
+
+typedef struct
+{
+	int len;
+	char* data;
+} MQTTLenString;
+
+typedef struct
+{
+	char* cstring;
+	MQTTLenString lenstring;
+} MQTTString;
+
+#define MQTTString_initializer {NULL, {0, NULL}}
+
+int MQTTstrlen(MQTTString mqttstring);
+
+#include "MQTTConnect.h"
+#include "MQTTPublish.h"
+#include "MQTTSubscribe.h"
+#include "MQTTUnsubscribe.h"
+#include "MQTTFormat.h"
+
+int MQTTSerialize_ack(unsigned char* buf, int buflen, unsigned char type, unsigned char dup, unsigned short packetid);
+int MQTTDeserialize_ack(unsigned char* packettype, unsigned char* dup, unsigned short* packetid, unsigned char* buf, int buflen);
+
+int MQTTPacket_len(int rem_len);
+int MQTTPacket_equals(MQTTString* a, char* b);
+
+int MQTTPacket_encode(unsigned char* buf, int length);
+int MQTTPacket_decode(int (*getcharfn)(unsigned char*, int), int* value);
+int MQTTPacket_decodeBuf(unsigned char* buf, int* value);
+
+int readInt(unsigned char** pptr);
+char readChar(unsigned char** pptr);
+void writeChar(unsigned char** pptr, char c);
+void writeInt(unsigned char** pptr, int anInt);
+int readMQTTLenString(MQTTString* mqttstring, unsigned char** pptr, unsigned char* enddata);
+void writeCString(unsigned char** pptr, const char* string);
+void writeMQTTString(unsigned char** pptr, MQTTString mqttstring);
+
+DLLExport int MQTTPacket_read(unsigned char* buf, int buflen, int (*getfn)(unsigned char*, int));
+
+typedef struct {
+	int (*getfn)(void *, unsigned char*, int); /* must return -1 for error, 0 for call again, or the number of bytes read */
+	void *sck;	/* pointer to whatever the system may use to identify the transport */
+	int multiplier;
+	int rem_len;
+	int len;
+	char state;
+}MQTTTransport;
+
+int MQTTPacket_readnb(unsigned char* buf, int buflen, MQTTTransport *trp);
+
+#ifdef __cplusplus /* If this is a C++ compiler, use C linkage */
+}
+#endif
+
+
+#endif /* MQTTPACKET_H_ */

Internet/MQTT/MQTTPacket/src/MQTTPublish.h

@@ -0,0 +1,38 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *    Xiang Rong - 442039 Add makefile to Embedded C client
+ *******************************************************************************/
+
+#ifndef MQTTPUBLISH_H_
+#define MQTTPUBLISH_H_
+
+#if !defined(DLLImport)
+  #define DLLImport 
+#endif
+#if !defined(DLLExport)
+  #define DLLExport
+#endif
+
+DLLExport int MQTTSerialize_publish(unsigned char* buf, int buflen, unsigned char dup, int qos, unsigned char retained, unsigned short packetid,
+		MQTTString topicName, unsigned char* payload, int payloadlen);
+
+DLLExport int MQTTDeserialize_publish(unsigned char* dup, int* qos, unsigned char* retained, unsigned short* packetid, MQTTString* topicName,
+		unsigned char** payload, int* payloadlen, unsigned char* buf, int len);
+
+DLLExport int MQTTSerialize_puback(unsigned char* buf, int buflen, unsigned short packetid);
+DLLExport int MQTTSerialize_pubrel(unsigned char* buf, int buflen, unsigned char dup, unsigned short packetid);
+DLLExport int MQTTSerialize_pubcomp(unsigned char* buf, int buflen, unsigned short packetid);
+
+#endif /* MQTTPUBLISH_H_ */

Internet/MQTT/MQTTPacket/src/MQTTSerializePublish.c

@@ -0,0 +1,169 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *    Ian Craggs - fix for https://bugs.eclipse.org/bugs/show_bug.cgi?id=453144
+ *******************************************************************************/
+
+#include "MQTTPacket.h"
+#include "StackTrace.h"
+
+#include <string.h>
+
+
+/**
+  * Determines the length of the MQTT publish packet that would be produced using the supplied parameters
+  * @param qos the MQTT QoS of the publish (packetid is omitted for QoS 0)
+  * @param topicName the topic name to be used in the publish  
+  * @param payloadlen the length of the payload to be sent
+  * @return the length of buffer needed to contain the serialized version of the packet
+  */
+int MQTTSerialize_publishLength(int qos, MQTTString topicName, int payloadlen)
+{
+	int len = 0;
+
+	len += 2 + MQTTstrlen(topicName) + payloadlen;
+	if (qos > 0)
+		len += 2; /* packetid */
+	return len;
+}
+
+
+/**
+  * Serializes the supplied publish data into the supplied buffer, ready for sending
+  * @param buf the buffer into which the packet will be serialized
+  * @param buflen the length in bytes of the supplied buffer
+  * @param dup integer - the MQTT dup flag
+  * @param qos integer - the MQTT QoS value
+  * @param retained integer - the MQTT retained flag
+  * @param packetid integer - the MQTT packet identifier
+  * @param topicName MQTTString - the MQTT topic in the publish
+  * @param payload byte buffer - the MQTT publish payload
+  * @param payloadlen integer - the length of the MQTT payload
+  * @return the length of the serialized data.  <= 0 indicates error
+  */
+int MQTTSerialize_publish(unsigned char* buf, int buflen, unsigned char dup, int qos, unsigned char retained, unsigned short packetid,
+		MQTTString topicName, unsigned char* payload, int payloadlen)
+{
+	unsigned char *ptr = buf;
+	MQTTHeader header = {0};
+	int rem_len = 0;
+	int rc = 0;
+
+	FUNC_ENTRY;
+	if (MQTTPacket_len(rem_len = MQTTSerialize_publishLength(qos, topicName, payloadlen)) > buflen)
+	{
+		rc = MQTTPACKET_BUFFER_TOO_SHORT;
+		goto exit;
+	}
+
+	header.bits.type = PUBLISH;
+	header.bits.dup = dup;
+	header.bits.qos = qos;
+	header.bits.retain = retained;
+	writeChar(&ptr, header.byte); /* write header */
+
+	ptr += MQTTPacket_encode(ptr, rem_len); /* write remaining length */;
+
+	writeMQTTString(&ptr, topicName);
+
+	if (qos > 0)
+		writeInt(&ptr, packetid);
+
+	memcpy(ptr, payload, payloadlen);
+	ptr += payloadlen;
+
+	rc = ptr - buf;
+
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+
+
+/**
+  * Serializes the ack packet into the supplied buffer.
+  * @param buf the buffer into which the packet will be serialized
+  * @param buflen the length in bytes of the supplied buffer
+  * @param type the MQTT packet type
+  * @param dup the MQTT dup flag
+  * @param packetid the MQTT packet identifier
+  * @return serialized length, or error if 0
+  */
+int MQTTSerialize_ack(unsigned char* buf, int buflen, unsigned char packettype, unsigned char dup, unsigned short packetid)
+{
+	MQTTHeader header = {0};
+	int rc = 0;
+	unsigned char *ptr = buf;
+
+	FUNC_ENTRY;
+	if (buflen < 4)
+	{
+		rc = MQTTPACKET_BUFFER_TOO_SHORT;
+		goto exit;
+	}
+	header.bits.type = packettype;
+	header.bits.dup = dup;
+	header.bits.qos = (packettype == PUBREL) ? 1 : 0;
+	writeChar(&ptr, header.byte); /* write header */
+
+	ptr += MQTTPacket_encode(ptr, 2); /* write remaining length */
+	writeInt(&ptr, packetid);
+	rc = ptr - buf;
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+
+/**
+  * Serializes a puback packet into the supplied buffer.
+  * @param buf the buffer into which the packet will be serialized
+  * @param buflen the length in bytes of the supplied buffer
+  * @param packetid integer - the MQTT packet identifier
+  * @return serialized length, or error if 0
+  */
+int MQTTSerialize_puback(unsigned char* buf, int buflen, unsigned short packetid)
+{
+	return MQTTSerialize_ack(buf, buflen, PUBACK, 0, packetid);
+}
+
+
+/**
+  * Serializes a pubrel packet into the supplied buffer.
+  * @param buf the buffer into which the packet will be serialized
+  * @param buflen the length in bytes of the supplied buffer
+  * @param dup integer - the MQTT dup flag
+  * @param packetid integer - the MQTT packet identifier
+  * @return serialized length, or error if 0
+  */
+int MQTTSerialize_pubrel(unsigned char* buf, int buflen, unsigned char dup, unsigned short packetid)
+{
+	return MQTTSerialize_ack(buf, buflen, PUBREL, dup, packetid);
+}
+
+
+/**
+  * Serializes a pubrel packet into the supplied buffer.
+  * @param buf the buffer into which the packet will be serialized
+  * @param buflen the length in bytes of the supplied buffer
+  * @param packetid integer - the MQTT packet identifier
+  * @return serialized length, or error if 0
+  */
+int MQTTSerialize_pubcomp(unsigned char* buf, int buflen, unsigned short packetid)
+{
+	return MQTTSerialize_ack(buf, buflen, PUBCOMP, 0, packetid);
+}
+
+

Internet/MQTT/MQTTPacket/src/MQTTSubscribe.h

@@ -0,0 +1,39 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *    Xiang Rong - 442039 Add makefile to Embedded C client
+ *******************************************************************************/
+
+#ifndef MQTTSUBSCRIBE_H_
+#define MQTTSUBSCRIBE_H_
+
+#if !defined(DLLImport)
+  #define DLLImport 
+#endif
+#if !defined(DLLExport)
+  #define DLLExport
+#endif
+
+DLLExport int MQTTSerialize_subscribe(unsigned char* buf, int buflen, unsigned char dup, unsigned short packetid,
+		int count, MQTTString topicFilters[], int requestedQoSs[]);
+
+DLLExport int MQTTDeserialize_subscribe(unsigned char* dup, unsigned short* packetid,
+		int maxcount, int* count, MQTTString topicFilters[], int requestedQoSs[], unsigned char* buf, int len);
+
+DLLExport int MQTTSerialize_suback(unsigned char* buf, int buflen, unsigned short packetid, int count, int* grantedQoSs);
+
+DLLExport int MQTTDeserialize_suback(unsigned short* packetid, int maxcount, int* count, int grantedQoSs[], unsigned char* buf, int len);
+
+
+#endif /* MQTTSUBSCRIBE_H_ */

Internet/MQTT/MQTTPacket/src/MQTTSubscribeClient.c

@@ -0,0 +1,137 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *******************************************************************************/
+
+#include "MQTTPacket.h"
+#include "StackTrace.h"
+
+#include <string.h>
+
+/**
+  * Determines the length of the MQTT subscribe packet that would be produced using the supplied parameters
+  * @param count the number of topic filter strings in topicFilters
+  * @param topicFilters the array of topic filter strings to be used in the publish
+  * @return the length of buffer needed to contain the serialized version of the packet
+  */
+int MQTTSerialize_subscribeLength(int count, MQTTString topicFilters[])
+{
+	int i;
+	int len = 2; /* packetid */
+
+	for (i = 0; i < count; ++i)
+		len += 2 + MQTTstrlen(topicFilters[i]) + 1; /* length + topic + req_qos */
+	return len;
+}
+
+
+/**
+  * Serializes the supplied subscribe data into the supplied buffer, ready for sending
+  * @param buf the buffer into which the packet will be serialized
+  * @param buflen the length in bytes of the supplied bufferr
+  * @param dup integer - the MQTT dup flag
+  * @param packetid integer - the MQTT packet identifier
+  * @param count - number of members in the topicFilters and reqQos arrays
+  * @param topicFilters - array of topic filter names
+  * @param requestedQoSs - array of requested QoS
+  * @return the length of the serialized data.  <= 0 indicates error
+  */
+int MQTTSerialize_subscribe(unsigned char* buf, int buflen, unsigned char dup, unsigned short packetid, int count,
+		MQTTString topicFilters[], int requestedQoSs[])
+{
+	unsigned char *ptr = buf;
+	MQTTHeader header = {0};
+	int rem_len = 0;
+	int rc = 0;
+	int i = 0;
+
+	FUNC_ENTRY;
+	if (MQTTPacket_len(rem_len = MQTTSerialize_subscribeLength(count, topicFilters)) > buflen)
+	{
+		rc = MQTTPACKET_BUFFER_TOO_SHORT;
+		goto exit;
+	}
+
+	header.byte = 0;
+	header.bits.type = SUBSCRIBE;
+	header.bits.dup = dup;
+	header.bits.qos = 1;
+	writeChar(&ptr, header.byte); /* write header */
+
+	ptr += MQTTPacket_encode(ptr, rem_len); /* write remaining length */;
+
+	writeInt(&ptr, packetid);
+
+	for (i = 0; i < count; ++i)
+	{
+		writeMQTTString(&ptr, topicFilters[i]);
+		writeChar(&ptr, requestedQoSs[i]);
+	}
+
+	rc = ptr - buf;
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+
+
+/**
+  * Deserializes the supplied (wire) buffer into suback data
+  * @param packetid returned integer - the MQTT packet identifier
+  * @param maxcount - the maximum number of members allowed in the grantedQoSs array
+  * @param count returned integer - number of members in the grantedQoSs array
+  * @param grantedQoSs returned array of integers - the granted qualities of service
+  * @param buf the raw buffer data, of the correct length determined by the remaining length field
+  * @param buflen the length in bytes of the data in the supplied buffer
+  * @return error code.  1 is success, 0 is failure
+  */
+int MQTTDeserialize_suback(unsigned short* packetid, int maxcount, int* count, int grantedQoSs[], unsigned char* buf, int buflen)
+{
+	MQTTHeader header = {0};
+	unsigned char* curdata = buf;
+	unsigned char* enddata = NULL;
+	int rc = 0;
+	int mylen;
+
+	FUNC_ENTRY;
+	header.byte = readChar(&curdata);
+	if (header.bits.type != SUBACK)
+		goto exit;
+
+	curdata += (rc = MQTTPacket_decodeBuf(curdata, &mylen)); /* read remaining length */
+	enddata = curdata + mylen;
+	if (enddata - curdata < 2)
+		goto exit;
+
+	*packetid = readInt(&curdata);
+
+	*count = 0;
+	while (curdata < enddata)
+	{
+		if (*count > maxcount)
+		{
+			rc = -1;
+			goto exit;
+		}
+		grantedQoSs[(*count)++] = readChar(&curdata);
+	}
+
+	rc = 1;
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+

Internet/MQTT/MQTTPacket/src/MQTTSubscribeServer.c

@@ -0,0 +1,112 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *******************************************************************************/
+
+#include "MQTTPacket.h"
+#include "StackTrace.h"
+
+#include <string.h>
+
+
+/**
+  * Deserializes the supplied (wire) buffer into subscribe data
+  * @param dup integer returned - the MQTT dup flag
+  * @param packetid integer returned - the MQTT packet identifier
+  * @param maxcount - the maximum number of members allowed in the topicFilters and requestedQoSs arrays
+  * @param count - number of members in the topicFilters and requestedQoSs arrays
+  * @param topicFilters - array of topic filter names
+  * @param requestedQoSs - array of requested QoS
+  * @param buf the raw buffer data, of the correct length determined by the remaining length field
+  * @param buflen the length in bytes of the data in the supplied buffer
+  * @return the length of the serialized data.  <= 0 indicates error
+  */
+int MQTTDeserialize_subscribe(unsigned char* dup, unsigned short* packetid, int maxcount, int* count, MQTTString topicFilters[],
+	int requestedQoSs[], unsigned char* buf, int buflen)
+{
+	MQTTHeader header = {0};
+	unsigned char* curdata = buf;
+	unsigned char* enddata = NULL;
+	int rc = -1;
+	int mylen = 0;
+
+	FUNC_ENTRY;
+	header.byte = readChar(&curdata);
+	if (header.bits.type != SUBSCRIBE)
+		goto exit;
+	*dup = header.bits.dup;
+
+	curdata += (rc = MQTTPacket_decodeBuf(curdata, &mylen)); /* read remaining length */
+	enddata = curdata + mylen;
+
+	*packetid = readInt(&curdata);
+
+	*count = 0;
+	while (curdata < enddata)
+	{
+		if (!readMQTTLenString(&topicFilters[*count], &curdata, enddata))
+			goto exit;
+		if (curdata >= enddata) /* do we have enough data to read the req_qos version byte? */
+			goto exit;
+		requestedQoSs[*count] = readChar(&curdata);
+		(*count)++;
+	}
+
+	rc = 1;
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+
+/**
+  * Serializes the supplied suback data into the supplied buffer, ready for sending
+  * @param buf the buffer into which the packet will be serialized
+  * @param buflen the length in bytes of the supplied buffer
+  * @param packetid integer - the MQTT packet identifier
+  * @param count - number of members in the grantedQoSs array
+  * @param grantedQoSs - array of granted QoS
+  * @return the length of the serialized data.  <= 0 indicates error
+  */
+int MQTTSerialize_suback(unsigned char* buf, int buflen, unsigned short packetid, int count, int* grantedQoSs)
+{
+	MQTTHeader header = {0};
+	int rc = -1;
+	unsigned char *ptr = buf;
+	int i;
+
+	FUNC_ENTRY;
+	if (buflen < 2 + count)
+	{
+		rc = MQTTPACKET_BUFFER_TOO_SHORT;
+		goto exit;
+	}
+	header.byte = 0;
+	header.bits.type = SUBACK;
+	writeChar(&ptr, header.byte); /* write header */
+
+	ptr += MQTTPacket_encode(ptr, 2 + count); /* write remaining length */
+
+	writeInt(&ptr, packetid);
+
+	for (i = 0; i < count; ++i)
+		writeChar(&ptr, grantedQoSs[i]);
+
+	rc = ptr - buf;
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+

Internet/MQTT/MQTTPacket/src/MQTTUnsubscribe.h

@@ -0,0 +1,38 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *    Xiang Rong - 442039 Add makefile to Embedded C client
+ *******************************************************************************/
+
+#ifndef MQTTUNSUBSCRIBE_H_
+#define MQTTUNSUBSCRIBE_H_
+
+#if !defined(DLLImport)
+  #define DLLImport 
+#endif
+#if !defined(DLLExport)
+  #define DLLExport
+#endif
+
+DLLExport int MQTTSerialize_unsubscribe(unsigned char* buf, int buflen, unsigned char dup, unsigned short packetid,
+		int count, MQTTString topicFilters[]);
+
+DLLExport int MQTTDeserialize_unsubscribe(unsigned char* dup, unsigned short* packetid, int max_count, int* count, MQTTString topicFilters[],
+		unsigned char* buf, int len);
+
+DLLExport int MQTTSerialize_unsuback(unsigned char* buf, int buflen, unsigned short packetid);
+
+DLLExport int MQTTDeserialize_unsuback(unsigned short* packetid, unsigned char* buf, int len);
+
+#endif /* MQTTUNSUBSCRIBE_H_ */

Internet/MQTT/MQTTPacket/src/MQTTUnsubscribeClient.c

@@ -0,0 +1,106 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *******************************************************************************/
+
+#include "MQTTPacket.h"
+#include "StackTrace.h"
+
+#include <string.h>
+
+/**
+  * Determines the length of the MQTT unsubscribe packet that would be produced using the supplied parameters
+  * @param count the number of topic filter strings in topicFilters
+  * @param topicFilters the array of topic filter strings to be used in the publish
+  * @return the length of buffer needed to contain the serialized version of the packet
+  */
+int MQTTSerialize_unsubscribeLength(int count, MQTTString topicFilters[])
+{
+	int i;
+	int len = 2; /* packetid */
+
+	for (i = 0; i < count; ++i)
+		len += 2 + MQTTstrlen(topicFilters[i]); /* length + topic*/
+	return len;
+}
+
+
+/**
+  * Serializes the supplied unsubscribe data into the supplied buffer, ready for sending
+  * @param buf the raw buffer data, of the correct length determined by the remaining length field
+  * @param buflen the length in bytes of the data in the supplied buffer
+  * @param dup integer - the MQTT dup flag
+  * @param packetid integer - the MQTT packet identifier
+  * @param count - number of members in the topicFilters array
+  * @param topicFilters - array of topic filter names
+  * @return the length of the serialized data.  <= 0 indicates error
+  */
+int MQTTSerialize_unsubscribe(unsigned char* buf, int buflen, unsigned char dup, unsigned short packetid,
+		int count, MQTTString topicFilters[])
+{
+	unsigned char *ptr = buf;
+	MQTTHeader header = {0};
+	int rem_len = 0;
+	int rc = -1;
+	int i = 0;
+
+	FUNC_ENTRY;
+	if (MQTTPacket_len(rem_len = MQTTSerialize_unsubscribeLength(count, topicFilters)) > buflen)
+	{
+		rc = MQTTPACKET_BUFFER_TOO_SHORT;
+		goto exit;
+	}
+
+	header.byte = 0;
+	header.bits.type = UNSUBSCRIBE;
+	header.bits.dup = dup;
+	header.bits.qos = 1;
+	writeChar(&ptr, header.byte); /* write header */
+
+	ptr += MQTTPacket_encode(ptr, rem_len); /* write remaining length */;
+
+	writeInt(&ptr, packetid);
+
+	for (i = 0; i < count; ++i)
+		writeMQTTString(&ptr, topicFilters[i]);
+
+	rc = ptr - buf;
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+
+/**
+  * Deserializes the supplied (wire) buffer into unsuback data
+  * @param packetid returned integer - the MQTT packet identifier
+  * @param buf the raw buffer data, of the correct length determined by the remaining length field
+  * @param buflen the length in bytes of the data in the supplied buffer
+  * @return error code.  1 is success, 0 is failure
+  */
+int MQTTDeserialize_unsuback(unsigned short* packetid, unsigned char* buf, int buflen)
+{
+	unsigned char type = 0;
+	unsigned char dup = 0;
+	int rc = 0;
+
+	FUNC_ENTRY;
+	rc = MQTTDeserialize_ack(&type, &dup, packetid, buf, buflen);
+	if (type == UNSUBACK)
+		rc = 1;
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+

Internet/MQTT/MQTTPacket/src/MQTTUnsubscribeServer.c

@@ -0,0 +1,102 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *******************************************************************************/
+
+#include "MQTTPacket.h"
+#include "StackTrace.h"
+
+#include <string.h>
+
+
+/**
+  * Deserializes the supplied (wire) buffer into unsubscribe data
+  * @param dup integer returned - the MQTT dup flag
+  * @param packetid integer returned - the MQTT packet identifier
+  * @param maxcount - the maximum number of members allowed in the topicFilters and requestedQoSs arrays
+  * @param count - number of members in the topicFilters and requestedQoSs arrays
+  * @param topicFilters - array of topic filter names
+  * @param buf the raw buffer data, of the correct length determined by the remaining length field
+  * @param buflen the length in bytes of the data in the supplied buffer
+  * @return the length of the serialized data.  <= 0 indicates error
+  */
+int MQTTDeserialize_unsubscribe(unsigned char* dup, unsigned short* packetid, int maxcount, int* count, MQTTString topicFilters[],
+		unsigned char* buf, int len)
+{
+	MQTTHeader header = {0};
+	unsigned char* curdata = buf;
+	unsigned char* enddata = NULL;
+	int rc = 0;
+	int mylen = 0;
+
+	FUNC_ENTRY;
+	header.byte = readChar(&curdata);
+	if (header.bits.type != UNSUBSCRIBE)
+		goto exit;
+	*dup = header.bits.dup;
+
+	curdata += (rc = MQTTPacket_decodeBuf(curdata, &mylen)); /* read remaining length */
+	enddata = curdata + mylen;
+
+	*packetid = readInt(&curdata);
+
+	*count = 0;
+	while (curdata < enddata)
+	{
+		if (!readMQTTLenString(&topicFilters[*count], &curdata, enddata))
+			goto exit;
+		(*count)++;
+	}
+
+	rc = 1;
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+
+/**
+  * Serializes the supplied unsuback data into the supplied buffer, ready for sending
+  * @param buf the buffer into which the packet will be serialized
+  * @param buflen the length in bytes of the supplied buffer
+  * @param packetid integer - the MQTT packet identifier
+  * @return the length of the serialized data.  <= 0 indicates error
+  */
+int MQTTSerialize_unsuback(unsigned char* buf, int buflen, unsigned short packetid)
+{
+	MQTTHeader header = {0};
+	int rc = 0;
+	unsigned char *ptr = buf;
+
+	FUNC_ENTRY;
+	if (buflen < 2)
+	{
+		rc = MQTTPACKET_BUFFER_TOO_SHORT;
+		goto exit;
+	}
+	header.byte = 0;
+	header.bits.type = UNSUBACK;
+	writeChar(&ptr, header.byte); /* write header */
+
+	ptr += MQTTPacket_encode(ptr, 2); /* write remaining length */
+
+	writeInt(&ptr, packetid);
+
+	rc = ptr - buf;
+exit:
+	FUNC_EXIT_RC(rc);
+	return rc;
+}
+
+

Internet/MQTT/MQTTPacket/src/StackTrace.h

@@ -0,0 +1,78 @@
+/*******************************************************************************
+ * Copyright (c) 2014 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Ian Craggs - initial API and implementation and/or initial documentation
+ *    Ian Craggs - fix for bug #434081
+ *******************************************************************************/
+
+#ifndef STACKTRACE_H_
+#define STACKTRACE_H_
+
+#include <stdio.h>
+#define NOSTACKTRACE 1
+
+#if defined(NOSTACKTRACE)
+#define FUNC_ENTRY
+#define FUNC_ENTRY_NOLOG
+#define FUNC_ENTRY_MED
+#define FUNC_ENTRY_MAX
+#define FUNC_EXIT
+#define FUNC_EXIT_NOLOG
+#define FUNC_EXIT_MED
+#define FUNC_EXIT_MAX
+#define FUNC_EXIT_RC(x)
+#define FUNC_EXIT_MED_RC(x)
+#define FUNC_EXIT_MAX_RC(x)
+
+#else
+
+#if defined(WIN32)
+#define inline __inline
+#define FUNC_ENTRY StackTrace_entry(__FUNCTION__, __LINE__, TRACE_MINIMUM)
+#define FUNC_ENTRY_NOLOG StackTrace_entry(__FUNCTION__, __LINE__, -1)
+#define FUNC_ENTRY_MED StackTrace_entry(__FUNCTION__, __LINE__, TRACE_MEDIUM)
+#define FUNC_ENTRY_MAX StackTrace_entry(__FUNCTION__, __LINE__, TRACE_MAXIMUM)
+#define FUNC_EXIT StackTrace_exit(__FUNCTION__, __LINE__, NULL, TRACE_MINIMUM)
+#define FUNC_EXIT_NOLOG StackTrace_exit(__FUNCTION__, __LINE__, -1)
+#define FUNC_EXIT_MED StackTrace_exit(__FUNCTION__, __LINE__, NULL, TRACE_MEDIUM)
+#define FUNC_EXIT_MAX StackTrace_exit(__FUNCTION__, __LINE__, NULL, TRACE_MAXIMUM)
+#define FUNC_EXIT_RC(x) StackTrace_exit(__FUNCTION__, __LINE__, &x, TRACE_MINIMUM)
+#define FUNC_EXIT_MED_RC(x) StackTrace_exit(__FUNCTION__, __LINE__, &x, TRACE_MEDIUM)
+#define FUNC_EXIT_MAX_RC(x) StackTrace_exit(__FUNCTION__, __LINE__, &x, TRACE_MAXIMUM)
+#else
+#define FUNC_ENTRY StackTrace_entry(__func__, __LINE__, TRACE_MINIMUM)
+#define FUNC_ENTRY_NOLOG StackTrace_entry(__func__, __LINE__, -1)
+#define FUNC_ENTRY_MED StackTrace_entry(__func__, __LINE__, TRACE_MEDIUM)
+#define FUNC_ENTRY_MAX StackTrace_entry(__func__, __LINE__, TRACE_MAXIMUM)
+#define FUNC_EXIT StackTrace_exit(__func__, __LINE__, NULL, TRACE_MINIMUM)
+#define FUNC_EXIT_NOLOG StackTrace_exit(__func__, __LINE__, NULL, -1)
+#define FUNC_EXIT_MED StackTrace_exit(__func__, __LINE__, NULL, TRACE_MEDIUM)
+#define FUNC_EXIT_MAX StackTrace_exit(__func__, __LINE__, NULL, TRACE_MAXIMUM)
+#define FUNC_EXIT_RC(x) StackTrace_exit(__func__, __LINE__, &x, TRACE_MINIMUM)
+#define FUNC_EXIT_MED_RC(x) StackTrace_exit(__func__, __LINE__, &x, TRACE_MEDIUM)
+#define FUNC_EXIT_MAX_RC(x) StackTrace_exit(__func__, __LINE__, &x, TRACE_MAXIMUM)
+
+void StackTrace_entry(const char* name, int line, int trace);
+void StackTrace_exit(const char* name, int line, void* return_value, int trace);
+
+void StackTrace_printStack(FILE* dest);
+char* StackTrace_get(unsigned long);
+
+#endif
+
+#endif
+
+
+
+
+#endif /* STACKTRACE_H_ */

Internet/MQTT/mqtt_interface.c

@@ -0,0 +1,169 @@
+//*****************************************************************************
+//! \file mqtt_interface.c
+//! \brief Paho MQTT to WIZnet Chip interface implement file.
+//! \details The process of porting an interface to use paho MQTT.
+//! \version 1.0.0
+//! \date 2016/12/06
+//! \par  Revision history
+//!       <2016/12/06> 1st Release
+//!
+//! \author Peter Bang & Justin Kim
+//! \copyright
+//!
+//! Copyright (c)  2016, 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 "mqtt_interface.h"
+#include "wizchip_conf.h"
+
+unsigned long MilliTimer;
+
+/*
+ * @brief MQTT MilliTimer handler
+ * @note MUST BE register to your system 1m Tick timer handler.
+ */
+void MilliTimer_Handler(void) {
+	MilliTimer++;
+}
+
+/*
+ * @brief Timer Initialize
+ * @param  timer : pointer to a Timer structure
+ *         that contains the configuration information for the Timer.
+ */
+void TimerInit(Timer* timer) {
+	timer->end_time = 0;
+}
+
+/*
+ * @brief expired Timer
+ * @param  timer : pointer to a Timer structure
+ *         that contains the configuration information for the Timer.
+ */
+char TimerIsExpired(Timer* timer) {
+	long left = timer->end_time - MilliTimer;
+	return (left < 0);
+}
+
+/*
+ * @brief Countdown millisecond Timer
+ * @param  timer : pointer to a Timer structure
+ *         that contains the configuration information for the Timer.
+ *         timeout : setting timeout millisecond.
+ */
+void TimerCountdownMS(Timer* timer, unsigned int timeout) {
+	timer->end_time = MilliTimer + timeout;
+}
+
+/*
+ * @brief Countdown second Timer
+ * @param  timer : pointer to a Timer structure
+ *         that contains the configuration information for the Timer.
+ *         timeout : setting timeout millisecond.
+ */
+void TimerCountdown(Timer* timer, unsigned int timeout) {
+	timer->end_time = MilliTimer + (timeout * 1000);
+}
+
+/*
+ * @brief left millisecond Timer
+ * @param  timer : pointer to a Timer structure
+ *         that contains the configuration information for the Timer.
+ */
+int TimerLeftMS(Timer* timer) {
+	long left = timer->end_time - MilliTimer;
+	return (left < 0) ? 0 : left;
+}
+
+/*
+ * @brief New network setting
+ * @param  n : pointer to a Network structure
+ *         that contains the configuration information for the Network.
+ *         sn : socket number where x can be (0..7).
+ * @retval None
+ */
+void NewNetwork(Network* n, int sn) {
+	n->my_socket = sn;
+	n->mqttread = w5x00_read;
+	n->mqttwrite = w5x00_write;
+	n->disconnect = w5x00_disconnect;
+}
+
+/*
+ * @brief read function
+ * @param  n : pointer to a Network structure
+ *         that contains the configuration information for the Network.
+ *         buffer : pointer to a read buffer.
+ *         len : buffer length.
+ */
+int w5x00_read(Network* n, unsigned char* buffer, int len)
+{
+
+	if((getSn_SR(n->my_socket) == SOCK_ESTABLISHED) && (getSn_RX_RSR(n->my_socket)>0))
+		return recv(n->my_socket, buffer, len);
+}
+
+/*
+ * @brief write function
+ * @param  n : pointer to a Network structure
+ *         that contains the configuration information for the Network.
+ *         buffer : pointer to a read buffer.
+ *         len : buffer length.
+ */
+int w5x00_write(Network* n, unsigned char* buffer, int len)
+{
+	if(getSn_SR(n->my_socket) == SOCK_ESTABLISHED)
+		return send(n->my_socket, buffer, len);
+}
+
+/*
+ * @brief disconnect function
+ * @param  n : pointer to a Network structure
+ *         that contains the configuration information for the Network.
+ */
+void w5x00_disconnect(Network* n)
+{
+	disconnect(n->my_socket);
+}
+
+/*
+ * @brief connect network function
+ * @param  n : pointer to a Network structure
+ *         that contains the configuration information for the Network.
+ *         ip : server iP.
+ *         port : server port.
+ */
+int ConnectNetwork(Network* n, char* ip, int port)
+{
+	uint8_t myport = 12345;
+
+	socket(n->my_socket,Sn_MR_TCP,myport,0);
+	connect(n->my_socket,ip,port);
+}

Internet/MQTT/mqtt_interface.h

@@ -0,0 +1,260 @@
+//*****************************************************************************
+//! \file mqtt_interface.h
+//! \brief Paho MQTT to WIZnet Chip interface Header file.
+//! \details The process of porting an interface to use paho MQTT.
+//! \version 1.0.0
+//! \date 2016/12/06
+//! \par  Revision history
+//!       <2016/12/06> 1st Release
+//!
+//! \author Peter Bang & Justin Kim
+//! \copyright
+//!
+//! Copyright (c)  2016, 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.
+//
+//*****************************************************************************
+
+/* MQTT subscribe Example.... W5500 + STM32F103(IoT board)
+//Include: Board configuration
+#include "IoTEVB.h"
+
+//Include: MCU peripheral Library
+#include "stm32f10x_rcc.h"
+#include "stm32f10x.h"
+
+//Include: W5500 iolibrary
+#include "w5500.h"
+#include "wizchip_conf.h"
+#include "misc.h"
+
+//Include: Internet iolibrary
+#include "MQTTClient.h"
+
+//Include: MCU Specific W5500 driver
+#include "W5500HardwareDriver.h"
+
+//Include: Standard IO Library
+#include <stdio.h>
+
+//Socket number defines
+#define TCP_SOCKET	0
+
+//Receive Buffer Size define
+#define BUFFER_SIZE	2048
+
+//Global variables
+unsigned char targetIP[4] = {}; // mqtt server IP
+unsigned int targetPort = 1883; // mqtt server port
+uint8_t mac_address[6] = {};
+wiz_NetInfo gWIZNETINFO = { .mac = {}, //user MAC
+							.ip = {}, //user IP
+							.sn = {},
+							.gw = {},
+							.dns = {},
+							.dhcp = NETINFO_STATIC};
+
+unsigned char tempBuffer[BUFFER_SIZE] = {};
+
+struct opts_struct
+{
+	char* clientid;
+	int nodelimiter;
+	char* delimiter;
+	enum QoS qos;
+	char* username;
+	char* password;
+	char* host;
+	int port;
+	int showtopics;
+} opts ={ (char*)"stdout-subscriber", 0, (char*)"\n", QOS0, NULL, NULL, targetIP, targetPort, 0 };
+
+
+// @brief messageArrived callback function
+void messageArrived(MessageData* md)
+{
+	unsigned char testbuffer[100];
+	MQTTMessage* message = md->message;
+
+	if (opts.showtopics)
+	{
+		memcpy(testbuffer,(char*)message->payload,(int)message->payloadlen);
+		*(testbuffer + (int)message->payloadlen + 1) = "\n";
+		printf("%s\r\n",testbuffer);
+	}
+
+	if (opts.nodelimiter)
+		printf("%.*s", (int)message->payloadlen, (char*)message->payload);
+	else
+		printf("%.*s%s", (int)message->payloadlen, (char*)message->payload, opts.delimiter);
+}
+
+
+// @brief 1 millisecond Tick Timer setting
+void NVIC_configuration(void)
+{
+	NVIC_InitTypeDef NVIC_InitStructure;
+	SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);
+	SysTick_Config(72000);
+	NVIC_InitStructure.NVIC_IRQChannel = SysTick_IRQn;
+	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; // Highest priority
+	NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+	NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+	NVIC_Init(&NVIC_InitStructure);
+}
+
+// @brief 1 millisecond Tick Timer Handler setting
+void SysTick_Handler(void)
+{
+	MilliTimer_Handler();
+}
+
+int main(void)
+{
+	led_ctrl led1,led2;
+	int i;
+	int rc = 0;
+	unsigned char buf[100];
+	//Usart initialization for Debug.
+	USART1Initialze();
+		printf("USART initialized.\n\r");
+
+	I2C1Initialize();
+		printf("I2C initialized.\n\r");
+
+	MACEEP_Read(mac_address,0xfa,6);
+
+	printf("Mac address\n\r");
+	for(i = 0 ; i < 6 ; i++)
+	{
+		printf("%02x ",mac_address[i]);
+	}
+	printf("\n\r");
+
+	//LED initialization.
+	led_initialize();
+	led1 = led2 = ON;
+
+	led2Ctrl(led2);
+	led1Ctrl(led1);
+
+	//W5500 initialization.
+	W5500HardwareInitilize();
+		printf("W5500 hardware interface initialized.\n\r");
+
+	W5500Initialze();
+		printf("W5500 IC initialized.\n\r");
+
+	//Set network informations
+	wizchip_setnetinfo(&gWIZNETINFO);
+
+	setSHAR(mac_address);
+
+	print_network_information();
+
+	Network n;
+	MQTTClient c;
+
+	NewNetwork(&n, TCP_SOCKET);
+	ConnectNetwork(&n, targetIP, targetPort);
+	MQTTClientInit(&c,&n,1000,buf,100,tempBuffer,2048);
+
+	MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
+	data.willFlag = 0;
+	data.MQTTVersion = 3;
+	data.clientID.cstring = opts.clientid;
+	data.username.cstring = opts.username;
+	data.password.cstring = opts.password;
+
+	data.keepAliveInterval = 60;
+	data.cleansession = 1;
+
+	rc = MQTTConnect(&c, &data);
+	printf("Connected %d\r\n", rc);
+	opts.showtopics = 1;
+
+	printf("Subscribing to %s\r\n", "hello/wiznet");
+	rc = MQTTSubscribe(&c, "hello/wiznet", opts.qos, messageArrived);
+	printf("Subscribed %d\r\n", rc);
+
+    while(1)
+    {
+    	MQTTYield(&c, data.keepAliveInterval);
+    }
+}
+*/
+
+#ifndef __MQTT_INTERFACE_H_
+#define __MQTT_INTERFACE_H_
+
+/*
+ * @brief MQTT MilliTimer handler
+ * @note MUST BE register to your system 1m Tick timer handler
+ */
+void MilliTimer_Handler(void);
+
+/*
+ * @brief Timer structure
+ */
+typedef struct Timer Timer;
+struct Timer {
+	unsigned long systick_period;
+	unsigned long end_time;
+};
+
+/*
+ * @brief Network structure
+ */
+typedef struct Network Network;
+struct Network
+{
+	int my_socket;
+	int (*mqttread) (Network*, unsigned char*, int, int);
+	int (*mqttwrite) (Network*, unsigned char*, int, int);
+	void (*disconnect) (Network*);
+};
+
+/*
+ * @brief Timer function
+ */
+void TimerInit(Timer*);
+char TimerIsExpired(Timer*);
+void TimerCountdownMS(Timer*, unsigned int);
+void TimerCountdown(Timer*, unsigned int);
+int TimerLeftMS(Timer*);
+
+/*
+ * @brief Network interface porting
+ */
+int w5x00_read(Network*, unsigned char*, int);
+int w5x00_write(Network*, unsigned char*, int);
+void w5x00_disconnect(Network*);
+void NewNetwork(Network* n, int sn);
+int ConnectNetwork(Network*, char*, int);
+
+#endif //__MQTT_INTERFACE_H_

Internet/SNTP/sntp.c

@@ -0,0 +1,450 @@
+/*
+ * sntp.c
+ *
+ *  Created on: 2014. 12. 15.
+ *      Author: Administrator
+ */
+
+
+#include <string.h>
+
+#include "sntp.h"
+#include "socket.h"
+
+ntpformat NTPformat;
+datetime Nowdatetime;
+uint8_t ntpmessage[48];
+uint8_t *data_buf;
+uint8_t NTP_SOCKET;
+uint8_t time_zone;
+uint16_t ntp_retry_cnt=0; //counting the ntp retry number
+
+/*
+00)UTC-12:00 Baker Island, Howland Island (both uninhabited)
+01) UTC-11:00 American Samoa, Samoa
+02) UTC-10:00 (Summer)French Polynesia (most), United States (Aleutian Islands, Hawaii)
+03) UTC-09:30 Marquesas Islands
+04) UTC-09:00 Gambier Islands;(Summer)United States (most of Alaska)
+05) UTC-08:00 (Summer)Canada (most of British Columbia), Mexico (Baja California)
+06) UTC-08:00 United States (California, most of Nevada, most of Oregon, Washington (state))
+07) UTC-07:00 Mexico (Sonora), United States (Arizona); (Summer)Canada (Alberta)
+08) UTC-07:00 Mexico (Chihuahua), United States (Colorado)
+09) UTC-06:00 Costa Rica, El Salvador, Ecuador (Galapagos Islands), Guatemala, Honduras
+10) UTC-06:00 Mexico (most), Nicaragua;(Summer)Canada (Manitoba, Saskatchewan), United States (Illinois, most of Texas)
+11) UTC-05:00 Colombia, Cuba, Ecuador (continental), Haiti, Jamaica, Panama, Peru
+12) UTC-05:00 (Summer)Canada (most of Ontario, most of Quebec)
+13) UTC-05:00 United States (most of Florida, Georgia, Massachusetts, most of Michigan, New York, North Carolina, Ohio, Washington D.C.)
+14) UTC-04:30 Venezuela
+15) UTC-04:00 Bolivia, Brazil (Amazonas), Chile (continental), Dominican Republic, Canada (Nova Scotia), Paraguay,
+16) UTC-04:00 Puerto Rico, Trinidad and Tobago
+17) UTC-03:30 Canada (Newfoundland)
+18) UTC-03:00 Argentina; (Summer) Brazil (Brasilia, Rio de Janeiro, Sao Paulo), most of Greenland, Uruguay
+19) UTC-02:00 Brazil (Fernando de Noronha), South Georgia and the South Sandwich Islands
+20) UTC-01:00 Portugal (Azores), Cape Verde
+21) UTC&#177;00:00 Cote d'Ivoire, Faroe Islands, Ghana, Iceland, Senegal; (Summer) Ireland, Portugal (continental and Madeira)
+22) UTC&#177;00:00 Spain (Canary Islands), Morocco, United Kingdom
+23) UTC+01:00 Angola, Cameroon, Nigeria, Tunisia; (Summer)Albania, Algeria, Austria, Belgium, Bosnia and Herzegovina,
+24) UTC+01:00 Spain (continental), Croatia, Czech Republic, Denmark, Germany, Hungary, Italy, Kinshasa, Kosovo,
+25) UTC+01:00 Macedonia, France (metropolitan), the Netherlands, Norway, Poland, Serbia, Slovakia, Slovenia, Sweden, Switzerland
+26) UTC+02:00 Libya, Egypt, Malawi, Mozambique, South Africa, Zambia, Zimbabwe, (Summer)Bulgaria, Cyprus, Estonia,
+27) UTC+02:00 Finland, Greece, Israel, Jordan, Latvia, Lebanon, Lithuania, Moldova, Palestine, Romania, Syria, Turkey, Ukraine
+28) UTC+03:00 Belarus, Djibouti, Eritrea, Ethiopia, Iraq, Kenya, Madagascar, Russia (Kaliningrad Oblast), Saudi Arabia,
+29) UTC+03:00 South Sudan, Sudan, Somalia, South Sudan, Tanzania, Uganda, Yemen
+30) UTC+03:30 (Summer)Iran
+31) UTC+04:00 Armenia, Azerbaijan, Georgia, Mauritius, Oman, Russia (European), Seychelles, United Arab Emirates
+32) UTC+04:30 Afghanistan
+33) UTC+05:00 Kazakhstan (West), Maldives, Pakistan, Uzbekistan
+34) UTC+05:30 India, Sri Lanka
+35) UTC+05:45 Nepal
+36) UTC+06:00 Kazakhstan (most), Bangladesh, Russia (Ural: Sverdlovsk Oblast, Chelyabinsk Oblast)
+37) UTC+06:30 Cocos Islands, Myanmar
+38) UTC+07:00 Jakarta, Russia (Novosibirsk Oblast), Thailand, Vietnam
+39) UTC+08:00 China, Hong Kong, Russia (Krasnoyarsk Krai), Malaysia, Philippines, Singapore, Taiwan, most of Mongolia, Western Australia
+40) UTC+09:00 Korea, East Timor, Russia (Irkutsk Oblast), Japan
+41) UTC+09:30 Australia (Northern Territory);(Summer)Australia (South Australia))
+42) UTC+10:00 Russia (Zabaykalsky Krai); (Summer)Australia (New South Wales, Queensland, Tasmania, Victoria)
+43) UTC+10:30 Lord Howe Island
+44) UTC+11:00 New Caledonia, Russia (Primorsky Krai), Solomon Islands
+45) UTC+11:30 Norfolk Island
+46) UTC+12:00 Fiji, Russia (Kamchatka Krai);(Summer)New Zealand
+47) UTC+12:45 (Summer)New Zealand
+48) UTC+13:00 Tonga
+49) UTC+14:00 Kiribati (Line Islands)
+*/
+void get_seconds_from_ntp_server(uint8_t *buf, uint16_t idx)
+{
+	tstamp seconds = 0;
+	uint8_t i=0;
+	for (i = 0; i < 4; i++)
+	{
+		seconds = (seconds << 8) | buf[idx + i];
+	}
+	switch (time_zone)
+	{
+	case 0:
+		seconds -=  12*3600;
+		break;
+	case 1:
+		seconds -=  11*3600;
+		break;
+	case 2:
+		seconds -=  10*3600;
+		break;
+	case 3:
+		seconds -=  (9*3600+30*60);
+		break;
+	case 4:
+		seconds -=  9*3600;
+		break;
+	case 5:
+	case 6:
+		seconds -=  8*3600;
+		break;
+	case 7:
+	case 8:
+		seconds -=  7*3600;
+		break;
+	case 9:
+	case 10:
+		seconds -=  6*3600;
+		break;
+	case 11:
+	case 12:
+	case 13:
+		seconds -= 5*3600;
+		break;
+	case 14:
+		seconds -=  (4*3600+30*60);
+		break;
+	case 15:
+	case 16:
+		seconds -=  4*3600;
+		break;
+	case 17:
+		seconds -=  (3*3600+30*60);
+		break;
+	case 18:
+		seconds -=  3*3600;
+		break;
+	case 19:
+		seconds -=  2*3600;
+		break;
+	case 20:
+		seconds -=  1*3600;
+		break;
+	case 21:                            //<2F><>?
+	case 22:
+		break;
+	case 23:
+	case 24:
+	case 25:
+		seconds +=  1*3600;
+		break;
+	case 26:
+	case 27:
+		seconds +=  2*3600;
+		break;
+	case 28:
+	case 29:
+		seconds +=  3*3600;
+		break;
+	case 30:
+		seconds +=  (3*3600+30*60);
+		break;
+	case 31:
+		seconds +=  4*3600;
+		break;
+	case 32:
+		seconds +=  (4*3600+30*60);
+		break;
+	case 33:
+		seconds +=  5*3600;
+		break;
+	case 34:
+		seconds +=  (5*3600+30*60);
+		break;
+	case 35:
+		seconds +=  (5*3600+45*60);
+		break;
+	case 36:
+		seconds +=  6*3600;
+		break;
+	case 37:
+		seconds +=  (6*3600+30*60);
+		break;
+	case 38:
+		seconds +=  7*3600;
+		break;
+	case 39:
+		seconds +=  8*3600;
+		break;
+	case 40:
+		seconds +=  9*3600;
+		break;
+	case 41:
+		seconds +=  (9*3600+30*60);
+		break;
+	case 42:
+		seconds +=  10*3600;
+		break;
+	case 43:
+		seconds +=  (10*3600+30*60);
+		break;
+	case 44:
+		seconds +=  11*3600;
+		break;
+	case 45:
+		seconds +=  (11*3600+30*60);
+		break;
+	case 46:
+		seconds +=  12*3600;
+		break;
+	case 47:
+		seconds +=  (12*3600+45*60);
+		break;
+	case 48:
+		seconds +=  13*3600;
+		break;
+	case 49:
+		seconds +=  14*3600;
+		break;
+
+	}
+
+	//calculation for date
+	calcdatetime(seconds);
+}
+
+void SNTP_init(uint8_t s, uint8_t *ntp_server, uint8_t tz, uint8_t *buf)
+{
+	NTP_SOCKET = s;
+
+	NTPformat.dstaddr[0] = ntp_server[0];
+	NTPformat.dstaddr[1] = ntp_server[1];
+	NTPformat.dstaddr[2] = ntp_server[2];
+	NTPformat.dstaddr[3] = ntp_server[3];
+
+	time_zone = tz;
+
+	data_buf = buf;
+
+	uint8_t Flag;
+	NTPformat.leap = 0;           /* leap indicator */
+	NTPformat.version = 4;        /* version number */
+	NTPformat.mode = 3;           /* mode */
+	NTPformat.stratum = 0;        /* stratum */
+	NTPformat.poll = 0;           /* poll interval */
+	NTPformat.precision = 0;      /* precision */
+	NTPformat.rootdelay = 0;      /* root delay */
+	NTPformat.rootdisp = 0;       /* root dispersion */
+	NTPformat.refid = 0;          /* reference ID */
+	NTPformat.reftime = 0;        /* reference time */
+	NTPformat.org = 0;            /* origin timestamp */
+	NTPformat.rec = 0;            /* receive timestamp */
+	NTPformat.xmt = 1;            /* transmit timestamp */
+
+	Flag = (NTPformat.leap<<6)+(NTPformat.version<<3)+NTPformat.mode; //one byte Flag
+	memcpy(ntpmessage,(void const*)(&Flag),1);
+}
+
+int8_t SNTP_run(datetime *time)
+{
+	uint16_t RSR_len;
+	uint32_t destip = 0;
+	uint16_t destport;
+	uint16_t startindex = 40; //last 8-byte of data_buf[size is 48 byte] is xmt, so the startindex should be 40
+
+	switch(getSn_SR(NTP_SOCKET))
+	{
+	case SOCK_UDP:
+		if ((RSR_len = getSn_RX_RSR(NTP_SOCKET)) > 0)
+		{
+			if (RSR_len > MAX_SNTP_BUF_SIZE) RSR_len = MAX_SNTP_BUF_SIZE;	// if Rx data size is lager than TX_RX_MAX_BUF_SIZE
+			recvfrom(NTP_SOCKET, data_buf, RSR_len, (uint8_t *)&destip, &destport);
+
+			get_seconds_from_ntp_server(data_buf,startindex);
+			time->yy = Nowdatetime.yy;
+			time->mo = Nowdatetime.mo;
+			time->dd = Nowdatetime.dd;
+			time->hh = Nowdatetime.hh;
+			time->mm = Nowdatetime.mm;
+			time->ss = Nowdatetime.ss;
+
+			ntp_retry_cnt=0;
+			close(NTP_SOCKET);
+
+			return 1;
+		}
+
+		if(ntp_retry_cnt<0xFFFF)
+		{
+			if(ntp_retry_cnt==0)//first send request, no need to wait
+			{
+				sendto(NTP_SOCKET,ntpmessage,sizeof(ntpmessage),NTPformat.dstaddr,ntp_port);
+				ntp_retry_cnt++;
+			}
+			else // send request again? it should wait for a while
+			{
+				if((ntp_retry_cnt % 0xFFF) == 0) //wait time
+				{
+					sendto(NTP_SOCKET,ntpmessage,sizeof(ntpmessage),NTPformat.dstaddr,ntp_port);
+#ifdef _SNTP_DEBUG_
+					printf("ntp retry: %d\r\n", ntp_retry_cnt);
+#endif
+					ntp_retry_cnt++;
+				}
+			}
+		}
+		else //ntp retry fail
+		{
+			ntp_retry_cnt=0;
+#ifdef _SNTP_DEBUG_
+			printf("ntp retry failed!\r\n");
+#endif
+			close(NTP_SOCKET);
+		}
+		break;
+	case SOCK_CLOSED:
+		socket(NTP_SOCKET,Sn_MR_UDP,ntp_port,0);
+		break;
+	}
+	// Return value
+	// 0 - failed / 1 - success
+	return 0;
+}
+
+void calcdatetime(tstamp seconds)
+{
+	uint8_t yf=0;
+	tstamp n=0,d=0,total_d=0,rz=0;
+	uint16_t y=0,r=0,yr=0;
+	signed long long yd=0;
+
+	n = seconds;
+	total_d = seconds/(SECS_PERDAY);
+	d=0;
+	uint32_t p_year_total_sec=SECS_PERDAY*365;
+	uint32_t r_year_total_sec=SECS_PERDAY*366;
+	while(n>=p_year_total_sec)
+	{
+		if((EPOCH+r)%400==0 || ((EPOCH+r)%100!=0 && (EPOCH+r)%4==0))
+		{
+			n = n -(r_year_total_sec);
+			d = d + 366;
+		}
+		else
+		{
+			n = n - (p_year_total_sec);
+			d = d + 365;
+		}
+		r+=1;
+		y+=1;
+
+	}
+
+	y += EPOCH;
+
+	Nowdatetime.yy = y;
+
+	yd=0;
+	yd = total_d - d;
+
+	yf=1;
+	while(yd>=28)
+	{
+
+		if(yf==1 || yf==3 || yf==5 || yf==7 || yf==8 || yf==10 || yf==12)
+		{
+			yd -= 31;
+			if(yd<0)break;
+			rz += 31;
+		}
+
+		if (yf==2)
+		{
+			if (y%400==0 || (y%100!=0 && y%4==0))
+			{
+				yd -= 29;
+				if(yd<0)break;
+				rz += 29;
+			}
+			else
+			{
+				yd -= 28;
+				if(yd<0)break;
+				rz += 28;
+			}
+		}
+		if(yf==4 || yf==6 || yf==9 || yf==11 )
+		{
+			yd -= 30;
+			if(yd<0)break;
+			rz += 30;
+		}
+		yf += 1;
+
+	}
+	Nowdatetime.mo=yf;
+	yr = total_d-d-rz;
+
+	yr += 1;
+
+	Nowdatetime.dd=yr;
+
+	//calculation for time
+	seconds = seconds%SECS_PERDAY;
+	Nowdatetime.hh = seconds/3600;
+	Nowdatetime.mm = (seconds%3600)/60;
+	Nowdatetime.ss = (seconds%3600)%60;
+
+}
+
+tstamp changedatetime_to_seconds(void)
+{
+	tstamp seconds=0;
+	uint32_t total_day=0;
+	uint16_t i=0,run_year_cnt=0,l=0;
+
+	l = Nowdatetime.yy;//low
+
+
+	for(i=EPOCH;i<l;i++)
+	{
+		if((i%400==0) || ((i%100!=0) && (i%4==0)))
+		{
+			run_year_cnt += 1;
+		}
+	}
+
+	total_day=(l-EPOCH-run_year_cnt)*365+run_year_cnt*366;
+
+	for(i=1;i<=Nowdatetime.mo;i++)
+	{
+		if(i==5 || i==7 || i==10 || i==12)
+		{
+			total_day += 30;
+		}
+		if (i==3)
+		{
+			if (l%400==0 && l%100!=0 && l%4==0)
+			{
+				total_day += 29;
+			}
+			else
+			{
+				total_day += 28;
+			}
+		}
+		if(i==2 || i==4 || i==6 || i==8 || i==9 || i==11)
+		{
+			total_day += 31;
+		}
+	}
+
+	seconds = (total_day+Nowdatetime.dd-1)*24*3600;
+	seconds += Nowdatetime.ss;//seconds
+	seconds += Nowdatetime.mm*60;//minute
+	seconds += Nowdatetime.hh*3600;//hour
+
+	return seconds;
+}

Internet/SNTP/sntp.h

@@ -0,0 +1,68 @@
+/*
+ * sntp.h
+ *
+ *  Created on: 2014. 12. 15.
+ *      Author: Administrator
+ */
+
+#ifndef SNTP_H_
+#define SNTP_H_
+
+#include <stdint.h>
+
+/*
+ * @brief Define it for Debug & Monitor DNS processing.
+ * @note If defined, it dependens on <stdio.h>
+ */
+//#define _SNTP_DEBUG_
+
+#define	MAX_SNTP_BUF_SIZE	sizeof(ntpformat)		///< maximum size of DNS buffer. */
+
+/* for ntpclient */
+typedef signed char s_char;
+typedef unsigned long long tstamp;
+typedef unsigned int tdist;
+
+typedef struct _ntpformat
+{
+
+	uint8_t  dstaddr[4];        /* destination (local) address */
+	char    version;        /* version number */
+	char    leap;           /* leap indicator */
+	char    mode;           /* mode */
+	char    stratum;        /* stratum */
+	char    poll;           /* poll interval */
+	s_char  precision;      /* precision */
+	tdist   rootdelay;      /* root delay */
+	tdist   rootdisp;       /* root dispersion */
+	char    refid;          /* reference ID */
+	tstamp  reftime;        /* reference time */
+	tstamp  org;            /* origin timestamp */
+	tstamp  rec;            /* receive timestamp */
+	tstamp  xmt;            /* transmit timestamp */
+
+
+} ntpformat;
+
+typedef struct _datetime
+{
+	uint16_t yy;
+	uint8_t mo;
+	uint8_t dd;
+	uint8_t hh;
+	uint8_t mm;
+	uint8_t ss;
+} datetime;
+
+#define ntp_port		123                     //ntp server port number
+#define SECS_PERDAY		86400UL             	// seconds in a day = 60*60*24
+#define UTC_ADJ_HRS		9              	        // SEOUL : GMT+9
+#define EPOCH			1900                    // NTP start year
+
+void get_seconds_from_ntp_server(uint8_t *buf, uint16_t idx);
+void SNTP_init(uint8_t s, uint8_t *ntp_server, uint8_t tz, uint8_t *buf);
+int8_t SNTP_run(datetime *time);
+tstamp changedatetime_to_seconds(void);
+void calcdatetime(tstamp seconds);
+
+#endif /* SNTP_H_ */

Internet/httpServer/httpServer.c

@@ -9,8 +9,6 @@
 #include "httpParser.h"
 #include "httpUtil.h"
 
-#include "common.h"
-
 #ifdef	_USE_SDCARD_
 #include "ff.h" 	// header file for FatFs library (FAT file system)
 #endif
@@ -400,7 +398,7 @@ static void send_http_response_body(uint8_t s, uint8_t * uri_name, uint8_t * buf
 		read_userReg_webContent(start_addr, &buf[0], HTTPSock_Status[get_seqnum].file_offset, send_len);
 	}
 #ifdef _USE_SDCARD_
-	else if(HTTPSock_Status[get_seqnum]->storage_type == SDCARD)
+	else if(HTTPSock_Status[get_seqnum].storage_type == SDCARD)
 	{
 		// Data read from SD Card
 		fr = f_read(&fs, &buf[0], send_len, (void *)&blocklen);
@@ -561,7 +559,7 @@ static void http_process_handler(uint8_t s, st_http_request * p_http_request)
 
 					file_len = fs.fsize;
 					content_addr = fs.sclust;
-					HTTPSock_Status[get_seqnum]->storage_type = SDCARD;
+					HTTPSock_Status[get_seqnum].storage_type = SDCARD;
 				}
 #elif _USE_FLASH_
 				else if(/* Read content from Dataflash */)

README.md

@@ -1,6 +1,6 @@
 #ioLibrary Driver
 The ioLibrary means “Internet Offload Library” for WIZnet chip. It includes drivers and application protocols. 
-The driver (ioLibrary) can be used for [W5500](http://wizwiki.net/wiki/doku.php?id=products:w5500:start) application designs. These will be updated continuously.
+The driver (ioLibrary) can be used for the application design of WIZnet TCP/IP chips as [W5500](http://wizwiki.net/wiki/doku.php?id=products:w5500:start), W5300, W5200 and W5100.
 
 ##ioLibrary
 This driver provides the Berkeley Socket type APIs.
@@ -8,11 +8,49 @@ This driver provides the Berkeley Socket type APIs.
 <!-- ioLibrary pic -->
 ![ioLibrary](http://wizwiki.net/wiki/lib/exe/fetch.php?media=products:w5500:iolibrary_bsd.jpg "ioLibrary")
 
-- Ethernet : SOCKET APIs like BSD & WIZCHIP([W5500](http://wizwiki.net/wiki/doku.php?id=products:w5500:start), W5200 and etc) Driver
+- Ethernet : SOCKET APIs like BSD & WIZCHIP([W5500](http://wizwiki.net/wiki/doku.php?id=products:w5500:start) / W5300 /  W5200 / W5100) Driver
 - Internet :
   - DHCP client
   - DNS client
+  - FTP client
+  - FTP server
+  - SNMP agent/trap
+  - SNTP client
+  - TFTP client
+  - HTTP server
+  - MQTT Client
   - Others will be added.
 
+## How to add an ioLibrary in project through github site.
+  - Example, refer to https://www.youtube.com/watch?v=mt815RBGdsA
+  - [ioLibrary Doxygen doument](https://github.com/Wiznet/ioLibrary_Driver/blob/master/Ethernet/SOCKET_APIs_V2.0.chm) : Refer to **TODO** in this document
+    - Define what chip is used in **wizchip_conf.h**
+    - Define what Host I/F mode is used in **wizchip_conf.h**
+
 ## Revision History
-Last release : Nov. 2014
+  * ioLibrary V3.1.1 Released : 14, Dec, 2016
+    * Bug fixed : In Socket.c Fixed MACraw & IPraw sendto function.
+  * ioLibrary V3.1.0 Released : 05, Dec, 2016
+    * Internet application protocol add to MQTT Client (using paho MQTT 3.11)
+  * ioLibrary V3.0.3 Released : 03, May, 2016
+    * In W5300, Fixed some compile errors in close(). Refer to M20160503
+    * In close(), replace socket() with some command sequences. 
+  * ioLibrary V3.0.2 Released : 26, April, 2016
+    * Applied the erratum #1 in close() of socket.c (Refer to A20160426)
+  * ioLibrary V3.0.1 Released : 15, July, 2015
+    * Bug fixed : In W5100, Fixed CS control problem in read/write buffer with SPI. Refer to M20150715.
+  * ioLibrary V3.0 Released : 01, June, 2015
+    * Add to W5300
+    * Typing Error in comments
+    * Refer to 20150601 in sources.
+
+  * Type casting error Fixed : 09, April. 2015
+    In socket.c, send() : Refer to M20150409
+
+  * ioLibrary V2.0 released : April. 2015
+    * Added to W5100, W5200
+    * Correct to some typing error
+    * Fixed the warning of type casting.
+  
+  * Last release : Nov. 2014
+