add multicast example

Fix regression KEEPALIVEAUTO Not supported in W5100, W5200

Application/loopback/loopback.h

@@ -1,6 +1,10 @@
 #ifndef _LOOPBACK_H_
 #define _LOOPBACK_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 
 /* Loopback test debug message printout enable */
@@ -27,4 +31,8 @@ int32_t loopback_tcpc(uint8_t sn, uint8_t* buf, uint8_t* destip, uint16_t destpo
 /* UDP Loopback test example */
 int32_t loopback_udps(uint8_t sn, uint8_t* buf, uint16_t port);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif

Application/multicast/multicast.c

@@ -0,0 +1,113 @@
+#include "multicast.h"
+#include <stdio.h>
+#include "socket.h"
+#include "wizchip_conf.h"
+
+
+int32_t multicast_loopback(uint8_t sn, uint8_t* buf, uint8_t* multicast_ip, uint16_t multicast_port)
+{
+   int32_t  ret;
+   uint16_t size, sentsize;
+   uint8_t destip[4];
+   uint16_t destport, port=3000;
+
+   switch(getSn_SR(sn))
+   {
+      case SOCK_UDP :
+         if((size = getSn_RX_RSR(sn)) > 0)
+         {
+            if(size > DATA_BUF_SIZE) size = DATA_BUF_SIZE;
+            ret = recvfrom(sn, buf, size, destip, (uint16_t*)&destport);
+            if(ret <= 0)
+            {
+#ifdef _MULTICAST_DEBUG_
+               printf("%d: recvfrom error. %ld\r\n",sn,ret);
+#endif
+               return ret;
+            }
+            size = (uint16_t) ret;
+            sentsize = 0;
+            while(sentsize != size)
+            {
+               ret = sendto(sn, buf+sentsize, size-sentsize, destip, destport);
+               if(ret < 0)
+               {
+#ifdef _MULTICAST_DEBUG_
+                  printf("%d: sendto error. %ld\r\n",sn,ret);
+#endif
+                  return ret;
+               }
+               sentsize += ret; // Don't care SOCKERR_BUSY, because it is zero.
+            }
+         }
+
+         break;
+      case SOCK_CLOSED:
+#ifdef _MULTICAST_DEBUG_
+         printf("%d:Multicast Loopback start\r\n",sn);
+#endif
+         setSn_DIPR(0, multicast_ip);
+         setSn_DPORT(0, multicast_port);
+         if((ret = socket(sn, Sn_MR_UDP, port, Sn_MR_MULTI)) != sn)
+            return ret;
+#ifdef _MULTICAST_DEBUG_
+         printf("%d:Opened, UDP Multicast Socket\r\n", sn);
+         printf("%d:Multicast Group IP - %d.%d.%d.%d\r\n", sn, multicast_ip[0], multicast_ip[1], multicast_ip[2], multicast_ip[3]);
+         printf("%d:Multicast Group Port - %d\r\n", sn, multicast_port);
+#endif
+         break;
+      default :
+         break;
+   }
+   return 1;
+}
+
+int32_t multicast_recv(uint8_t sn, uint8_t* buf, uint8_t* multicast_ip, uint16_t multicast_port)
+{
+   int32_t  ret;
+   uint16_t size, port=3000;
+   uint8_t destip[4];
+   uint16_t destport;
+
+   switch(getSn_SR(sn))
+   {
+      case SOCK_UDP :
+         if((size = getSn_RX_RSR(sn)) > 0)
+         {
+            if(size > DATA_BUF_SIZE) size = DATA_BUF_SIZE;
+            ret = recvfrom(sn, buf, size, destip, (uint16_t*)&destport);
+            if(ret <= 0)
+            {
+#ifdef _MULTICAST_DEBUG_
+               printf("%d: recvfrom error. %ld\r\n",sn,ret);
+#endif
+               return ret;
+            }
+            size = (uint16_t) ret;
+#ifdef _MULTICAST_DEBUG_
+            printf("\r\nrecv size : %d\r\n", size);
+            for(int i=0; i<size; i++)
+            	printf("%c", buf[i]);
+            printf("\r\n");
+#endif
+         }
+         break;
+      case SOCK_CLOSED:
+#ifdef _MULTICAST_DEBUG_
+         printf("%d:Multicast Recv start\r\n",sn);
+#endif
+         setSn_DIPR(sn, multicast_ip);
+         setSn_DPORT(sn, multicast_port);
+         if((ret = socket(sn, Sn_MR_UDP, port, Sn_MR_MULTI)) != sn)
+            return ret;
+#ifdef _MULTICAST_DEBUG_
+         printf("%d:Opened, UDP Multicast Socket\r\n", sn);
+         printf("%d:Multicast Group IP - %d.%d.%d.%d\r\n", sn, multicast_ip[0], multicast_ip[1], multicast_ip[2], multicast_ip[3]);
+         printf("%d:Multicast Group Port - %d\r\n", sn, multicast_port);
+#endif
+         break;
+      default :
+         break;
+   }
+   return 1;
+}

Application/multicast/multicast.h

@@ -0,0 +1,28 @@
+#ifndef _MULTICAST_H_
+#define _MULTICAST_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+/* Multicast test debug message printout enable */
+#define _MULTICAST_DEBUG_
+
+#ifndef DATA_BUF_SIZE
+	#define DATA_BUF_SIZE			2048
+#endif
+
+/* UDP Multicast Loopback test example */
+int32_t multicast_loopback(uint8_t sn, uint8_t* buf, uint8_t* multicast_ip, uint16_t multicast_port);
+
+/* UDP Multicast Recv test example */
+int32_t multicast_recv(uint8_t sn, uint8_t* buf, uint8_t* multicast_ip, uint16_t multicast_port);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

Ethernet/W5100/w5100.h

@@ -40,6 +40,11 @@
 
 #ifndef	_W5100_H_
 #define	_W5100_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 #include "wizchip_conf.h"
 
@@ -1850,6 +1855,10 @@ void wiz_recv_ignore(uint8_t sn, uint16_t len);
 #endif
 /// @endcond
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif //_W5100_H_
 
 

Ethernet/W5100S/w5100s.h

@@ -42,6 +42,10 @@
 #ifndef	_W5100S_H_
 #define	_W5100S_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 #include "wizchip_conf.h"
 
@@ -975,7 +979,7 @@
  * @brief Address Auto-Increment in Indirect Bus Interface
  * @details 0 : Disable auto-increment \n
  * 1 : Enable auto-incremente \n
- * At the Indirect Bus Interface mode, if this bit is set as 占쎌쥙猷욑옙占쏙옙醫롫짗占쏙옙 the address will
+ * At the Indirect Bus Interface mode, if this bit is set as the address will
  * be automatically increased by 1 whenever read and write are performed.
  */
 #define MR_AI				0x02 ///< auto-increment in indirect mode
@@ -984,7 +988,7 @@
  * @brief Indirect Bus Interface mode
  * @details 0 : Disable Indirect bus Interface mode \n
  * 1 : Enable Indirect bus Interface mode \n
- * If this bit is set as 占쎌쥙猷욑옙占쏙옙醫롫짗占쏙옙 Indirect Bus Interface mode is set.
+ * If this bit is set as Indirect Bus Interface mode is set.
  */
 #define MR_IND				0x01 ///< enable indirect mode
 
@@ -2928,9 +2932,8 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
  * @sa getSn_RXMEM_SIZE()
  */
 #define  setSn_RXMEM_SIZE(sn, rxmemsize) \
-		WIZCHIP_WRITE(Sn_RXBUF_SIZE(sn),rxmemsize)
-#define  setSn_RXBUF_SIZE(sn,rxmemsize) setSn_RXMEM_SIZE(sn,rxmemsize)
-
+      WIZCHIP_WRITE(RMSR, (WIZCHIP_READ(RMSR) & ~(0x03 << (2*sn))) | (rxmemsize << (2*sn)))
+#define setSn_RXBUF_SIZE(sn,rxmemsize) setSn_RXMEM_SIZE(sn,rxmemsize)
 /**
  * @ingroup Socket_register_access_function_W5100S
  * @brief Get @ref Sn_RXMEM_SIZE register
@@ -2939,7 +2942,7 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
  * @sa setSn_RXMEM_SIZE()
  */
 #define  getSn_RXMEM_SIZE(sn) \
-		WIZCHIP_READ(Sn_RXBUF_SIZE(sn))
+      ((WIZCHIP_READ(RMSR) & (0x03 << (2*sn))) >> (2*sn))
 #define  getSn_RXBUF_SIZE(sn) getSn_RXMEM_SIZE(sn)
 
 /**
@@ -2950,7 +2953,7 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
  * @sa getSn_TXMEM_SIZE()
  */
 #define setSn_TXMEM_SIZE(sn, txmemsize) \
-		WIZCHIP_WRITE(Sn_TXBUF_SIZE(sn),txmemsize)
+      WIZCHIP_WRITE(TMSR, (WIZCHIP_READ(TMSR) & ~(0x03 << (2*sn))) | (txmemsize << (2*sn)))
 #define  setSn_TXBUF_SIZE(sn, txmemsize) setSn_TXMEM_SIZE(sn,txmemsize)
 
 /**
@@ -2961,7 +2964,7 @@ void     WIZCHIP_WRITE_BUF(uint32_t AddrSel, uint8_t* pBuf, uint16_t len);
  * @sa setSn_TXMEM_SIZE()
  */
 #define  getSn_TXMEM_SIZE(sn) \
-		WIZCHIP_READ(Sn_TXBUF_SIZE(sn))
+      ((WIZCHIP_READ(TMSR) & (0x03 << (2*sn))) >> (2*sn))
 #define  getSn_TXBUF_SIZE(sn) getSn_TXMEM_SIZE(sn)
 
 /**
@@ -3084,7 +3087,7 @@ uint16_t getSn_RX_RSR(uint8_t sn);
  * @return uint16_t. Max buffer size
  */
 #define getSn_RxMAX(sn) \
-		((uint16_t)(getSn_RXMEM_SIZE(sn)) << 10)
+		((uint16_t)(0x0001 << getSn_RXMEM_SIZE(sn)) << 10)
 
 
 /**
@@ -3094,7 +3097,7 @@ uint16_t getSn_RX_RSR(uint8_t sn);
  * @return uint16_t. Max buffer size
  */
 #define getSn_TxMAX(sn) \
-		((uint16_t)(getSn_TXMEM_SIZE(sn)) << 10)
+		((uint16_t)(0x0001 << getSn_TXMEM_SIZE(sn)) << 10)
 
 /**
  * @ingroup Socket_register_access_function_W5100S
@@ -3310,6 +3313,10 @@ void wiz_delay_ms(uint32_t ms);
 #endif
 /// @endcond
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif //_W5100S_H_
 
 

Ethernet/W5200/w5200.h

@@ -40,6 +40,11 @@
 
 #ifndef	_W5200_H
 #define	_W5200_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 #include "wizchip_conf.h"
 
@@ -2095,6 +2100,10 @@ void wiz_recv_ignore(uint8_t sn, uint16_t len);
 #endif
 /// \endcond
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif //_W5200_H_
 
 

Ethernet/W5300/w5300.h

@@ -1,5 +1,10 @@
 #ifndef	_W5300_H_
 #define	_W5300_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 //*****************************************************************************
 //
 //! \file w5300.h
@@ -900,16 +905,16 @@
 
 
 /************************************/ 
-/* The bit of IR regsiter defintion */ 
+/* The bit of IR regsiter definition */ 
 /************************************/ 
-#define IR_IPCF            (1 << 15)             /**< IP conflict bit of \ref IR. To clear, Write the bit to '1'. */
-#define IR_DPUR            (1 << 14)             /**< Destination port unreachable bit of \ref IR. To clear, Write the bit to '1'. */
-#define IR_PPPT            (1 << 13)             /**< PPPoE terminate bit of \ref IR. To clear, Write the bit to '1'. */
-#define IR_FMTU            (1 << 12)             /**< Fragment MTU bit of IR. To clear, Write the bit to '1'. */
+#define IR_IPCF            (1 << 7)             /**< IP conflict bit of \ref IR. To clear, Write the bit to '1'. */
+#define IR_DPUR            (1 << 6)             /**< Destination port unreachable bit of \ref IR. To clear, Write the bit to '1'. */
+#define IR_PPPT            (1 << 5)             /**< PPPoE terminate bit of \ref IR. To clear, Write the bit to '1'. */
+#define IR_FMTU            (1 << 4)             /**< Fragment MTU bit of IR. To clear, Write the bit to '1'. */
 #define IR_SnINT(n)        (0x01 << n)          /**< SOCKETn interrupt occurrence bit of \ref IR. To clear, Clear \ref Sn_IR*/
 
 /*****************************************/ 
-/* The bit of Pn_BRDYR regsiter defintion*/ 
+/* The bit of Pn_BRDYR regsiter definition*/ 
 /*****************************************/ 
 #define Pn_PEN             (1 << 7)             /**< PIN 'BRDYn' enable bit of Pn_BRDYR. */
 #define Pn_MT              (1 << 6)             /**< PIN memory type bit of Pn_BRDYR. */
@@ -918,7 +923,7 @@
 
 
 /***************************************/ 
-/* The bit of Sn_MR regsiter defintion */ 
+/* The bit of Sn_MR regsiter definition */ 
 /***************************************/ 
 /**
  * @brief Alignment bit of \ref Sn_MR. 
@@ -1015,7 +1020,7 @@
 
 
 /******************************/ 
-/* The values of CR defintion */ 
+/* The values of CR definition */ 
 /******************************/
 /**
  * @brief Initialize or open a socket
@@ -1115,7 +1120,7 @@
 
 
 /*********************************/ 
-/* The values of Sn_IR defintion */ 
+/* The values of Sn_IR definition */ 
 /*********************************/
 #define Sn_IR_PRECV        0x80                 /**< It is set in the case that option data which is not supported is received. Refer to \ref Sn_IR */
 #define Sn_IR_PFAIL        0x40                 /**< It is set in the case that PAP authentication is failed. Refer to \ref Sn_IR */
@@ -1127,7 +1132,7 @@
 #define Sn_IR_CON          0x01                 /**< It is set one time when the connection is successful and then @ref Sn_SR is changed to @ref SOCK_ESTABLISHED. */
 
 /**********************************/ 
-/* The values of Sn_SSR defintion */ 
+/* The values of Sn_SSR definition */ 
 /**********************************/
 /**
  * @brief The state of SOCKET intialized or closed
@@ -1988,7 +1993,7 @@ uint8_t getRMSR(uint8_t sn);
  * @return uint16_t. Variable of @ref Sn_PORTR.
  * @sa setSn_PORTR()
  */
-#define getSn_PORTR(sn, port) \
+#define getSn_PORTR(sn) \
    WIZCHIP_READ(Sn_PORTR(sn))
 #define getSn_PORT(sn)   getSn_PORTR(sn)   ///< For compatible ioLibrary
 
@@ -2120,7 +2125,7 @@ uint8_t getRMSR(uint8_t sn);
  * @sa getSn_PROTOR()
  */
 #define setSn_PROTOR(sn, proto) \
-   WIZCHIP_WRITE(Sn_PROTOR(sn),(WIZCHIP_READ(Sn_PROTOR(sn) & 0xFF00) | (((uint16_t)proto) & 0x00FF))
+   WIZCHIP_WRITE(Sn_PROTOR(sn),(WIZCHIP_READ(Sn_PROTOR(sn)) & 0xFF00) | (((uint16_t)proto) & 0x00FF))
 #define setSn_PROTO(sn,proto)    setSn_PROTOR(sn,proto)  ///< For compatible ioLibrary   
 
 /**
@@ -2242,7 +2247,7 @@ uint32_t getSn_RX_RSR(uint8_t sn);
  * @sa getSn_FRAGR()
  */
 #define setSn_FRAGR(sn, frag) \
-   WIZCHIP_WRITE(Sn_FRAGR(sn),  (uint16_t)(frag >>8))
+   WIZCHIP_WRITE(Sn_FRAGR(sn),  ((uint16_t)frag) & 0x00FF)
 #define setSn_FRAG(sn,frag)   setSn_FRAGR(sn,flag)
 
 /**
@@ -2253,7 +2258,7 @@ uint32_t getSn_RX_RSR(uint8_t sn);
  * @sa setSn_FRAGR()
  */
 #define getSn_FRAGR(sn) \
-   (WIZCHIP_READ(Sn_FRAG(sn)) << 8)
+   (WIZCHIP_READ(Sn_FRAG(sn)))
 #define getSn_FRAG(sn)    getSn_FRAGR(sn)
 
 
@@ -2324,4 +2329,8 @@ void wiz_recv_ignore(uint8_t sn, uint32_t len);
 #endif
 /// \endcond
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif   // _W5300_H_

Ethernet/W5500/w5500.h

@@ -48,6 +48,10 @@
 #ifndef  _W5500_H_
 #define  _W5500_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 #include "wizchip_conf.h"
 
@@ -2152,4 +2156,8 @@ void wiz_recv_ignore(uint8_t sn, uint16_t len);
 #endif
 /// @endcond
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif   // _W5500_H_

Ethernet/socket.c

@@ -517,11 +517,11 @@ 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) && (getSn_MR(sn)&Sn_MR_MACRAW != Sn_MR_MACRAW)) return SOCKERR_IPINVALID;
-   if((port  == 0) && (getSn_MR(sn)&Sn_MR_MACRAW != Sn_MR_MACRAW)) return SOCKERR_PORTZERO;
+   if((taddr == 0) && ((getSn_MR(sn)&Sn_MR_MACRAW) != Sn_MR_MACRAW)) return SOCKERR_IPINVALID;
+   if((port  == 0) && ((getSn_MR(sn)&Sn_MR_MACRAW) != Sn_MR_MACRAW)) return SOCKERR_PORTZERO;
    tmp = getSn_SR(sn);
 //#if ( _WIZCHIP_ < 5200 )
-   if(tmp != SOCK_MACRAW && tmp != SOCK_UDP && tmp != SOCK_IPRAW) return SOCKERR_SOCKSTATUS;
+   if((tmp != SOCK_MACRAW) && (tmp != SOCK_UDP) && (tmp != SOCK_IPRAW)) return SOCKERR_SOCKSTATUS;
 //#else
 //   if(tmp != SOCK_MACRAW && tmp != SOCK_UDP) return SOCKERR_SOCKSTATUS;
 //#endif
@@ -858,7 +858,7 @@ int8_t  setsockopt(uint8_t sn, sockopt_type sotype, void* arg)
          		}
             }
          break;
-   #if _WIZCHIP_ > 5200
+   #if !( (_WIZCHIP_ == 5100) || (_WIZCHIP_ == 5200) )
       case SO_KEEPALIVEAUTO:
          CHECK_SOCKMODE(Sn_MR_TCP);
          setSn_KPALVTR(sn,*(uint8_t*)arg);
@@ -910,7 +910,7 @@ int8_t  getsockopt(uint8_t sn, sockopt_type sotype, void* arg)
          *(uint8_t*) arg = getSn_SR(sn);
          break;
       case SO_REMAINSIZE:
-         if(getSn_MR(sn) == Sn_MR_TCP)
+         if(getSn_MR(sn) & Sn_MR_TCP)
             *(uint16_t*)arg = getSn_RX_RSR(sn);
          else
             *(uint16_t*)arg = sock_remained_size[sn];

Ethernet/socket.h

@@ -84,6 +84,9 @@
  */
 #ifndef _SOCKET_H_
 #define _SOCKET_H_
+#ifdef __cplusplus
+ extern "C" {
+#endif
 
 #include "wizchip_conf.h"
 
@@ -387,7 +390,7 @@ typedef enum
    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, Not supported in W5100
-   #if _WIZCHIP_ > 5200   
+   #if !( (_WIZCHIP_ == 5100) || (_WIZCHIP_ == 5200) )
       SO_KEEPALIVEAUTO, ///< Set/Get keep-alive auto transmission timer in TCP mode, Not supported in W5100, W5200
    #endif      
 #endif
@@ -479,4 +482,8 @@ int8_t  setsockopt(uint8_t sn, sockopt_type sotype, void* arg);
   */
 int8_t  getsockopt(uint8_t sn, sockopt_type sotype, void* arg);
 
+#ifdef __cplusplus
+ }
+#endif
+
 #endif   // _SOCKET_H_

Ethernet/wizchip_conf.c

@@ -163,21 +163,28 @@ _WIZCHIP  WIZCHIP =
       };
 */      
 _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
-      };
+{
+    _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
+        },
+
+    }
+};
 
 
 static uint8_t    _DNS_[4];      // DNS server ip address
@@ -411,7 +418,10 @@ void wizchip_sw_reset(void)
 
 int8_t wizchip_init(uint8_t* txsize, uint8_t* rxsize)
 {
-   int8_t i,j;
+   int8_t i;
+#if _WIZCHIP_ < W5200
+   int8_t j;
+#endif
    int8_t tmp = 0;
    wizchip_sw_reset();
    if(txsize)
@@ -430,25 +440,27 @@ int8_t wizchip_init(uint8_t* txsize, uint8_t* rxsize)
 		for(i = 0 ; i < _WIZCHIP_SOCK_NUM_; i++)
 		{
 			tmp += txsize[i];
+
 		#if _WIZCHIP_ < W5200	//2016.10.28 peter add condition for w5100 and w5100s
 			if(tmp > 8) return -1;
 		#else
 			if(tmp > 16) return -1;
 		#endif
 		}
-
 		for(i = 0 ; i < _WIZCHIP_SOCK_NUM_; i++)
 		{
-		#if __WIZCHIP_ < W5200	//2016.10.28 peter add condition for w5100 and w5100s
+		#if _WIZCHIP_ < W5200	//2016.10.28 peter add condition for w5100
 			j = 0;
-			while(txsize[i] >> j != 1){j++;}
+			while((txsize[i] >> j != 1)&&(txsize[i] !=0)){j++;}
 			setSn_TXBUF_SIZE(i, j);
 		#else
 			setSn_TXBUF_SIZE(i, txsize[i]);
 		#endif
 		}
+
 	#endif
    }
+
    if(rxsize)
    {
       tmp = 0;
@@ -473,12 +485,12 @@ int8_t wizchip_init(uint8_t* txsize, uint8_t* rxsize)
 
 		for(i = 0 ; i < _WIZCHIP_SOCK_NUM_; i++)
 		{
-		#if __WIZCHIP_ < W5200	//2016.10.28 peter add condition for w5100 and w5100s
+		#if _WIZCHIP_ < W5200	// add condition for w5100
 			j = 0;
-			while(rxsize[i] >> j != 1){j++;}
+			while((rxsize[i] >> j != 1)&&(txsize[i] !=0)){j++;}
 			setSn_RXBUF_SIZE(i, j);
 		#else
-			setSn_RXBUF_SIZE(i, txsize[i]);
+			setSn_RXBUF_SIZE(i, rxsize[i]);
 		#endif
 		}
 	#endif
@@ -609,6 +621,7 @@ int8_t wizphy_getphylink(void)
 #elif _WIZCHIP_ == W5500
    if(getPHYCFGR() & PHYCFGR_LNK_ON)
       tmp = PHY_LINK_ON;
+
 #else
    tmp = -1;
 #endif
@@ -834,7 +847,6 @@ int8_t wizphy_setphypmode(uint8_t pmode)
 
 void wizchip_setnetinfo(wiz_NetInfo* pnetinfo)
 {
-	int i,j,k;
    setSHAR(pnetinfo->mac);
    setGAR(pnetinfo->gw);
    setSUBR(pnetinfo->sn);

Ethernet/wizchip_conf.h

@@ -54,6 +54,10 @@
 #ifndef  _WIZCHIP_CONF_H_
 #define  _WIZCHIP_CONF_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 /**
  * @brief Select WIZCHIP.
@@ -68,7 +72,7 @@
 #define W5500						5500
 
 #ifndef _WIZCHIP_
-#define _WIZCHIP_                      W5500   // W5100, W5100S, W5200, W5300, W5500
+#define _WIZCHIP_                      W5100S   // W5100, W5100S, W5200, W5300, W5500
 #endif
 
 #define _WIZCHIP_IO_MODE_NONE_         0x0000
@@ -107,7 +111,7 @@
 * @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_INDIR_
+//	#define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_BUS_INDIR_
 	//#define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_SPI_5500_
 	#define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_SPI_
 
@@ -193,8 +197,11 @@
  *       @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_				0x60000000	// for 5100S IND
-//#define _WIZCHIP_IO_BASE_				0x00000000	// for 5100S SPI
+#if _WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_BUS_
+	#define _WIZCHIP_IO_BASE_				0x60000000	// for 5100S IND
+#elif _WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SPI_
+	#define _WIZCHIP_IO_BASE_				0x00000000	// for 5100S SPI
+#endif
 
 #ifndef _WIZCHIP_IO_BASE_
 #define _WIZCHIP_IO_BASE_              0x00000000  // 0x8000
@@ -225,7 +232,7 @@
 typedef struct __WIZCHIP
 {
    uint16_t  if_mode;               ///< host interface mode
-   uint8_t   id[6];                 ///< @b WIZCHIP ID such as @b 5100, @b 5200, @b 5500, and so on.
+   uint8_t   id[7];                 ///< @b WIZCHIP ID such as @b 5100, @b 5200, @b 5500, and so on.
    /**
     * The set of critical section callback func.
     */
@@ -646,5 +653,8 @@ void wizchip_settimeout(wiz_NetTimeout* nettime);
  * @param nettime @ref _RTR_ value and @ref _RCR_ value. Refer to @ref wiz_NetTimeout. 
  */
 void wizchip_gettimeout(wiz_NetTimeout* nettime);
+#ifdef __cplusplus
+ }
+#endif
 
 #endif   // _WIZCHIP_CONF_H_

Internet/DHCP/dhcp.c

@@ -2,10 +2,11 @@
 //
 //! \file dhcp.c
 //! \brief DHCP APIs implement file.
-//! \details Processig DHCP protocol as DISCOVER, OFFER, REQUEST, ACK, NACK and DECLINE.
-//! \version 1.1.0
-//! \date 2013/11/18
+//! \details Processing DHCP protocol as DISCOVER, OFFER, REQUEST, ACK, NACK and DECLINE.
+//! \version 1.1.1
+//! \date 2019/10/08
 //! \par  Revision history
+//!       <2019/10/08> compare DHCP server ip address
 //!       <2013/11/18> 1st Release
 //!       <2012/12/20> V1.1.0
 //!         1. Optimize code
@@ -52,7 +53,7 @@
 #include "socket.h"
 #include "dhcp.h"
 
-/* If you want to display debug & procssing message, Define _DHCP_DEBUG_ in dhcp.h */
+/* If you want to display debug & processing message, Define _DHCP_DEBUG_ in dhcp.h */
 
 #ifdef _DHCP_DEBUG_
    #include <stdio.h>
@@ -65,7 +66,7 @@
 #define STATE_DHCP_LEASED        3        ///< ReceiveD ACK and IP leased
 #define STATE_DHCP_REREQUEST     4        ///< send REQUEST for maintaining leased IP
 #define STATE_DHCP_RELEASE       5        ///< No use
-#define STATE_DHCP_STOP          6        ///< Stop procssing DHCP
+#define STATE_DHCP_STOP          6        ///< Stop processing DHCP
 
 #define DHCP_FLAGSBROADCAST      0x8000   ///< The broadcast value of flags in @ref RIP_MSG 
 #define DHCP_FLAGSUNICAST        0x0000   ///< The unicast   value of flags in @ref RIP_MSG
@@ -192,6 +193,7 @@ typedef struct {
 uint8_t DHCP_SOCKET;                      // Socket number for DHCP
 
 uint8_t DHCP_SIP[4];                      // DHCP Server IP address
+uint8_t DHCP_REAL_SIP[4];                 // For extract my DHCP server in a few DHCP server
 
 // Network information from DHCP Server
 uint8_t OLD_allocated_ip[4]   = {0, };    // Previous IP address
@@ -228,6 +230,7 @@ void (*dhcp_ip_conflict)(void) = default_ip_conflict;   /* handler to be called
 
 void reg_dhcp_cbfunc(void(*ip_assign)(void), void(*ip_update)(void), void(*ip_conflict)(void));
 
+char NibbleToHex(uint8_t nibble);
     
 /* send DISCOVER message to DHCP server */
 void     send_DHCP_DISCOVER(void);
@@ -244,7 +247,7 @@ int8_t   check_DHCP_leasedIP(void);
 /* check the timeout in DHCP process */
 uint8_t  check_DHCP_timeout(void);
 
-/* Intialize to timeout process.  */
+/* Initialize to timeout process.  */
 void     reset_DHCP_timeout(void);
 
 /* Parse message as OFFER and ACK and NACK from DHCP server.*/
@@ -258,7 +261,7 @@ void default_ip_assign(void)
    setGAR (DHCP_allocated_gw);
 }
 
-/* The default handler of ip chaged */
+/* The default handler of ip changed */
 void default_ip_update(void)
 {
 	/* WIZchip Software Reset */
@@ -268,7 +271,7 @@ void default_ip_update(void)
    setSHAR(DHCP_CHADDR);
 }
 
-/* The default handler of ip chaged */
+/* The default handler of ip changed */
 void default_ip_conflict(void)
 {
 	// WIZchip Software Reset
@@ -355,8 +358,16 @@ void send_DHCP_DISCOVER(void)
 	uint16_t k = 0;
    
    makeDHCPMSG();
+   DHCP_SIP[0]=0;
+   DHCP_SIP[1]=0;
+   DHCP_SIP[2]=0;
+   DHCP_SIP[3]=0;
+   DHCP_REAL_SIP[0]=0;
+   DHCP_REAL_SIP[1]=0;
+   DHCP_REAL_SIP[2]=0;
+   DHCP_REAL_SIP[3]=0;
 
-   k = 4;     // beacaue MAGIC_COOKIE already made by makeDHCPMSG()
+   k = 4;     // because MAGIC_COOKIE already made by makeDHCPMSG()
    
 	// Option Request Param
 	pDHCPMSG->OPT[k++] = dhcpMessageType;
@@ -379,10 +390,13 @@ void send_DHCP_DISCOVER(void)
 	pDHCPMSG->OPT[k++] = 0;          // fill zero length of hostname 
 	for(i = 0 ; HOST_NAME[i] != 0; i++)
    	pDHCPMSG->OPT[k++] = HOST_NAME[i];
-	pDHCPMSG->OPT[k++] = DHCP_CHADDR[3];
-	pDHCPMSG->OPT[k++] = DHCP_CHADDR[4];
-	pDHCPMSG->OPT[k++] = DHCP_CHADDR[5];
-	pDHCPMSG->OPT[k - (i+3+1)] = i+3; // length of hostname
+	pDHCPMSG->OPT[k++] = NibbleToHex(DHCP_CHADDR[3] >> 4); 
+	pDHCPMSG->OPT[k++] = NibbleToHex(DHCP_CHADDR[3]);
+	pDHCPMSG->OPT[k++] = NibbleToHex(DHCP_CHADDR[4] >> 4); 
+	pDHCPMSG->OPT[k++] = NibbleToHex(DHCP_CHADDR[4]);
+	pDHCPMSG->OPT[k++] = NibbleToHex(DHCP_CHADDR[5] >> 4); 
+	pDHCPMSG->OPT[k++] = NibbleToHex(DHCP_CHADDR[5]);
+	pDHCPMSG->OPT[k - (i+6+1)] = i+6; // length of hostname
 
 	pDHCPMSG->OPT[k++] = dhcpParamRequest;
 	pDHCPMSG->OPT[k++] = 0x06;	// length of request
@@ -439,7 +453,7 @@ void send_DHCP_REQUEST(void)
    	ip[3] = 255;   	   	   	
    }
    
-   k = 4;      // beacaue MAGIC_COOKIE already made by makeDHCPMSG()
+   k = 4;      // because MAGIC_COOKIE already made by makeDHCPMSG()
 	
 	// Option Request Param.
 	pDHCPMSG->OPT[k++] = dhcpMessageType;
@@ -478,10 +492,13 @@ void send_DHCP_REQUEST(void)
 	pDHCPMSG->OPT[k++] = 0; // length of hostname
 	for(i = 0 ; HOST_NAME[i] != 0; i++)
    	pDHCPMSG->OPT[k++] = HOST_NAME[i];
-	pDHCPMSG->OPT[k++] = DHCP_CHADDR[3];
-	pDHCPMSG->OPT[k++] = DHCP_CHADDR[4];
-	pDHCPMSG->OPT[k++] = DHCP_CHADDR[5];
-	pDHCPMSG->OPT[k - (i+3+1)] = i+3; // length of hostname
+	pDHCPMSG->OPT[k++] = NibbleToHex(DHCP_CHADDR[3] >> 4); 
+	pDHCPMSG->OPT[k++] = NibbleToHex(DHCP_CHADDR[3]);
+	pDHCPMSG->OPT[k++] = NibbleToHex(DHCP_CHADDR[4] >> 4); 
+	pDHCPMSG->OPT[k++] = NibbleToHex(DHCP_CHADDR[4]);
+	pDHCPMSG->OPT[k++] = NibbleToHex(DHCP_CHADDR[5] >> 4); 
+	pDHCPMSG->OPT[k++] = NibbleToHex(DHCP_CHADDR[5]);
+	pDHCPMSG->OPT[k - (i+6+1)] = i+6; // length of hostname
 	
 	pDHCPMSG->OPT[k++] = dhcpParamRequest;
 	pDHCPMSG->OPT[k++] = 0x08;
@@ -514,7 +531,7 @@ void send_DHCP_DECLINE(void)
 	
 	makeDHCPMSG();
 
-   k = 4;      // beacaue MAGIC_COOKIE already made by makeDHCPMSG()
+   k = 4;      // because MAGIC_COOKIE already made by makeDHCPMSG()
    
 	*((uint8_t*)(&pDHCPMSG->flags))   = ((DHCP_FLAGSUNICAST & 0xFF00)>> 8);
 	*((uint8_t*)(&pDHCPMSG->flags)+1) = (DHCP_FLAGSUNICAST & 0x00FF);
@@ -574,7 +591,7 @@ int8_t parseDHCPMSG(void)
 
 	uint8_t * p;
 	uint8_t * e;
-	uint8_t type;
+	uint8_t type = 0;
 	uint8_t opt_len;
    
    if((len = getSn_RX_RSR(DHCP_SOCKET)) > 0)
@@ -590,8 +607,23 @@ int8_t parseDHCPMSG(void)
 		if ( (pDHCPMSG->chaddr[0] != DHCP_CHADDR[0]) || (pDHCPMSG->chaddr[1] != DHCP_CHADDR[1]) ||
 		     (pDHCPMSG->chaddr[2] != DHCP_CHADDR[2]) || (pDHCPMSG->chaddr[3] != DHCP_CHADDR[3]) ||
 		     (pDHCPMSG->chaddr[4] != DHCP_CHADDR[4]) || (pDHCPMSG->chaddr[5] != DHCP_CHADDR[5])   )
+		{
+#ifdef _DHCP_DEBUG_
+            printf("No My DHCP Message. This message is ignored.\r\n");
+#endif
          return 0;
-      type = 0;
+		}
+        //compare DHCP server ip address
+        if((DHCP_SIP[0]!=0) || (DHCP_SIP[1]!=0) || (DHCP_SIP[2]!=0) || (DHCP_SIP[3]!=0)){
+            if( ((svr_addr[0]!=DHCP_SIP[0])|| (svr_addr[1]!=DHCP_SIP[1])|| (svr_addr[2]!=DHCP_SIP[2])|| (svr_addr[3]!=DHCP_SIP[3])) &&
+                ((svr_addr[0]!=DHCP_REAL_SIP[0])|| (svr_addr[1]!=DHCP_REAL_SIP[1])|| (svr_addr[2]!=DHCP_REAL_SIP[2])|| (svr_addr[3]!=DHCP_REAL_SIP[3]))  )
+            {
+#ifdef _DHCP_DEBUG_
+                printf("Another DHCP sever send a response message. This is ignored.\r\n");
+#endif
+                return 0;
+            }
+        }
 		p = (uint8_t *)(&pDHCPMSG->op);
 		p = p + 240;      // 240 = sizeof(RIP_MSG) + MAGIC_COOKIE size in RIP_MSG.opt - sizeof(RIP_MSG.opt)
 		e = p + (len - 240);
@@ -655,6 +687,10 @@ int8_t parseDHCPMSG(void)
    				DHCP_SIP[1] = *p++;
    				DHCP_SIP[2] = *p++;
    				DHCP_SIP[3] = *p++;
+                DHCP_REAL_SIP[0]=svr_addr[0];
+                DHCP_REAL_SIP[1]=svr_addr[1];
+                DHCP_REAL_SIP[2]=svr_addr[2];
+                DHCP_REAL_SIP[3]=svr_addr[3];
    				break;
    			default :
    				p++;
@@ -897,7 +933,7 @@ void DHCP_init(uint8_t s, uint8_t * buf)
    getSHAR(DHCP_CHADDR);
    if((DHCP_CHADDR[0] | DHCP_CHADDR[1]  | DHCP_CHADDR[2] | DHCP_CHADDR[3] | DHCP_CHADDR[4] | DHCP_CHADDR[5]) == 0x00)
    {
-      // assing temporary mac address, you should be set SHAR before call this function. 
+      // assigning temporary mac address, you should be set SHAR before call this function. 
       DHCP_CHADDR[0] = 0x00;
       DHCP_CHADDR[1] = 0x08;
       DHCP_CHADDR[2] = 0xdc;      
@@ -913,7 +949,6 @@ void DHCP_init(uint8_t s, uint8_t * buf)
 
 	// WIZchip Netinfo Clear
 	setSIPR(zeroip);
-	setSIPR(zeroip);
 	setGAR(zeroip);
 
 	reset_DHCP_timeout();
@@ -921,7 +956,7 @@ void DHCP_init(uint8_t s, uint8_t * buf)
 }
 
 
-/* Rset the DHCP timeout count and retry count. */
+/* Reset the DHCP timeout count and retry count. */
 void reset_DHCP_timeout(void)
 {
 	dhcp_tick_1s = 0;
@@ -971,6 +1006,13 @@ uint32_t getDHCPLeasetime(void)
 	return dhcp_lease_time;
 }
 
-
+char NibbleToHex(uint8_t nibble)
+{
+  nibble &= 0x0F;
+  if (nibble <= 9)
+    return nibble + '0';
+  else 
+    return nibble + ('A'-0x0A);
+}
 
 

Internet/DHCP/dhcp.h

@@ -3,9 +3,10 @@
 //! \file dhcp.h
 //! \brief DHCP APIs Header file.
 //! \details Processig DHCP protocol as DISCOVER, OFFER, REQUEST, ACK, NACK and DECLINE.
-//! \version 1.1.0
-//! \date 2013/11/18
+//! \version 1.1.1
+//! \date 2019/10/08
 //! \par  Revision history
+//!       <2019/10/08> compare DHCP server ip address
 //!       <2013/11/18> 1st Release
 //!       <2012/12/20> V1.1.0
 //!         1. Move unreferenced DEFINE to dhcp.c
@@ -45,16 +46,20 @@
 #ifndef _DHCP_H_
 #define _DHCP_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * @brief 
- * @details If you want to display debug & procssing message, Define _DHCP_DEBUG_ 
- * @note    If defined, it dependens on <stdio.h>
+ * @details If you want to display debug & processing message, Define _DHCP_DEBUG_ 
+ * @note    If defined, it depends on <stdio.h>
  */
 //#define _DHCP_DEBUG_
 
 
 /* Retry to processing DHCP */
-#define	MAX_DHCP_RETRY          2        ///< Maxium retry count
+#define	MAX_DHCP_RETRY          2        ///< Maximum retry count
 #define	DHCP_WAIT_TIME          10       ///< Wait Time 10s
 
 
@@ -63,7 +68,7 @@
 #define DHCP_CLIENT_PORT         68	      ///< DHCP client port number
 
 
-#define MAGIC_COOKIE             0x63825363  ///< Any number. You can be modifyed it any number
+#define MAGIC_COOKIE             0x63825363  ///< You should not modify it number.
 
 #define DCHP_HOST_NAME           "WIZnet\0"
 
@@ -72,18 +77,18 @@
  */
 enum
 {
-   DHCP_FAILED = 0,  ///< Procssing Fail
-   DHCP_RUNNING,     ///< Procssing DHCP proctocol
+   DHCP_FAILED = 0,  ///< Processing Fail
+   DHCP_RUNNING,     ///< Processing DHCP protocol
    DHCP_IP_ASSIGN,   ///< First Occupy IP from DHPC server      (if cbfunc == null, act as default default_ip_assign)
    DHCP_IP_CHANGED,  ///< Change IP address by new ip from DHCP (if cbfunc == null, act as default default_ip_update)
    DHCP_IP_LEASED,   ///< Stand by 
-   DHCP_STOPPED      ///< Stop procssing DHCP protocol
+   DHCP_STOPPED      ///< Stop processing DHCP protocol
 };
 
 /*
  * @brief DHCP client initialization (outside of the main loop)
  * @param s   - socket number
- * @param buf - buffer for procssing DHCP message
+ * @param buf - buffer for processing DHCP message
  */
 void DHCP_init(uint8_t s, uint8_t * buf);
 
@@ -97,7 +102,7 @@ void DHCP_time_handler(void);
  * @brief Register call back function 
  * @param ip_assign   - callback func when IP is assigned from DHCP server first
  * @param ip_update   - callback func when IP is changed
- * @prarm ip_conflict - callback func when the assigned IP is conflict with others.
+ * @param ip_conflict - callback func when the assigned IP is conflict with others.
  */
 void reg_dhcp_cbfunc(void(*ip_assign)(void), void(*ip_update)(void), void(*ip_conflict)(void));
 
@@ -116,7 +121,7 @@ void reg_dhcp_cbfunc(void(*ip_assign)(void), void(*ip_update)(void), void(*ip_co
 uint8_t DHCP_run(void);
 
 /*
- * @brief Stop DHCP procssing
+ * @brief Stop DHCP processing
  * @note If you want to restart. call DHCP_init() and DHCP_run()
  */ 
 void    DHCP_stop(void);
@@ -145,8 +150,12 @@ void getDNSfromDHCP(uint8_t* ip);
 
 /*
  * @brief Get the leased time by DHCP sever
- * @retrun unit 1s
+ * @return unit 1s
  */
 uint32_t getDHCPLeasetime(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif	/* _DHCP_H_ */

Internet/DNS/dns.c

@@ -120,6 +120,7 @@ uint8_t  DNS_SOCKET;    // SOCKET number for DNS
 uint16_t DNS_MSGID;     // DNS message ID
 
 uint32_t dns_1s_tick;   // for timout of DNS processing
+static uint8_t retry_count;
 
 /* converts uint16_t from network buffer to a host byte order integer. */
 uint16_t get16(uint8_t * s)
@@ -339,7 +340,7 @@ int8_t parseDNSMSG(struct dhdr * pdhdr, uint8_t * pbuf, uint8_t * ip_from_dns)
 	uint8_t * cp;
 
 	msg = pbuf;
-	memset(pdhdr, 0, sizeof(pdhdr));
+	memset(pdhdr, 0, sizeof(*pdhdr));
 
 	pdhdr->id = get16(&msg[0]);
 	tmp = get16(&msg[2]);
@@ -367,7 +368,7 @@ int8_t parseDNSMSG(struct dhdr * pdhdr, uint8_t * pbuf, uint8_t * ip_from_dns)
 	{
 		cp = dns_question(msg, cp);
    #ifdef _DNS_DEUBG_
-      printf("MAX_DOMAIN_NAME is too small, it should be redfine in dns.h"
+      printf("MAX_DOMAIN_NAME is too small, it should be redfine in dns.h");
    #endif
 		if(!cp) return -1;
 	}
@@ -377,7 +378,7 @@ int8_t parseDNSMSG(struct dhdr * pdhdr, uint8_t * pbuf, uint8_t * ip_from_dns)
 	{
 		cp = dns_answer(msg, cp, ip_from_dns);
    #ifdef _DNS_DEUBG_
-      printf("MAX_DOMAIN_NAME is too small, it should be redfine in dns.h"
+      printf("MAX_DOMAIN_NAME is too small, it should be redfine in dns.h");
    #endif
 		if(!cp) return -1;
 	}
@@ -472,7 +473,6 @@ int16_t dns_makequery(uint16_t op, char * name, uint8_t * buf, uint16_t len)
 
 int8_t check_DNS_timeout(void)
 {
-	static uint8_t retry_count;
 
 	if(dns_1s_tick >= DNS_WAIT_TIME)
 	{
@@ -507,6 +507,9 @@ int8_t DNS_run(uint8_t * dns_ip, uint8_t * name, uint8_t * ip_from_dns)
 	uint16_t len, port;
 	int8_t ret_check_timeout;
 
+	retry_count = 0;
+	dns_1s_tick = 0;
+
    // Socket open
    socket(DNS_SOCKET, Sn_MR_UDP, 0, 0);
 
@@ -536,6 +539,7 @@ int8_t DNS_run(uint8_t * dns_ip, uint8_t * name, uint8_t * ip_from_dns)
 #ifdef _DNS_DEBUG_
 			printf("> DNS Server is not responding : %d.%d.%d.%d\r\n", dns_ip[0], dns_ip[1], dns_ip[2], dns_ip[3]);
 #endif
+			wizchip_close(DNS_SOCKET);
 			return 0; // timeout occurred
 		}
 		else if (ret_check_timeout == 0) {
@@ -558,6 +562,3 @@ void DNS_time_handler(void)
 {
 	dns_1s_tick++;
 }
-
-
-

Internet/DNS/dns.h

@@ -51,6 +51,10 @@
 #ifndef	_DNS_H_
 #define	_DNS_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 /*
  * @brief Define it for Debug & Monitor DNS processing.
@@ -98,4 +102,8 @@ int8_t DNS_run(uint8_t * dns_ip, uint8_t * name, uint8_t * ip_from_dns);
  */
 void DNS_time_handler(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif	/* _DNS_H_ */

Internet/FTPClient/ftpc.h

@@ -1,6 +1,10 @@
 #ifndef _FTPC_H_
 #define _FTPC_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 #include <stdio.h>
 #include <ctype.h>
@@ -116,4 +120,8 @@ char proc_ftpc(char * buf);
 int pportc(char * arg);
 uint8_t* User_Keyboard_MSG();
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif // _FTPC_H_

Internet/FTPClient/stdio_private.h

@@ -29,6 +29,10 @@
 
 /* $Id: stdio_private.h,v 1.6 2003/01/07 22:17:24 joerg_wunsch Exp $ */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 #include <stdio.h>
 
@@ -65,3 +69,7 @@ struct __file {
 #define SCANF_MIN 1
 #define SCANF_STD 2
 #define SCANF_FLT 3
+
+#ifdef __cplusplus
+}
+#endif

Internet/FTPServer/ftpd.h

@@ -1,6 +1,10 @@
 #ifndef _FTPD_H_
 #define _FTPD_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
 * Wiznet.
 * (c) Copyright 2002, Wiznet.
@@ -142,4 +146,9 @@ long recvfile(uint8_t s);
 #if defined(F_FILESYSTEM)
 void print_filedsc(FIL *fil);
 #endif
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif // _FTPD_H_

Internet/FTPServer/stdio_private.h

@@ -28,6 +28,9 @@
 */
 
 /* $Id: stdio_private.h,v 1.6 2003/01/07 22:17:24 joerg_wunsch Exp $ */
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 #include <stdint.h>
 #include <stdio.h>
@@ -65,3 +68,7 @@ struct __file {
 #define SCANF_MIN 1
 #define SCANF_STD 2
 #define SCANF_FLT 3
+
+#ifdef __cplusplus
+}
+#endif

Internet/MQTT/MQTTClient.c

@@ -295,14 +295,10 @@ int MQTTYield(MQTTClient* c, int timeout_ms)
     TimerInit(&timer);
     TimerCountdownMS(&timer, timeout_ms);
 
-	do
+    if (cycle(c, &timer) == FAILURE)
     {
-        if (cycle(c, &timer) == FAILURE)
-        {
-            rc = FAILURE;
-            break;
-        }
-	} while (!TimerIsExpired(&timer));
+        rc = FAILURE;
+    }
 
     return rc;
 }
@@ -410,6 +406,9 @@ int MQTTSubscribe(MQTTClient* c, const char* topicFilter, enum QoS qos, messageH
     int len = 0;
     MQTTString topic = MQTTString_initializer;
     topic.cstring = (char *)topicFilter;
+    // This was added because enum QoS was previously typed to *int which resulted in HardFault and unaligned integer read.
+    // This coping below makes sure the parameter for MQTTSerialize_subscribe is always char no matter what compiler is using for enums
+    char charQos = (char)qos;
 
 #if defined(MQTT_TASK)
 	MutexLock(&c->mutex);
@@ -420,7 +419,7 @@ int MQTTSubscribe(MQTTClient* c, const char* topicFilter, enum QoS qos, messageH
     TimerInit(&timer);
     TimerCountdownMS(&timer, c->command_timeout_ms);
 
-    len = MQTTSerialize_subscribe(c->buf, c->buf_size, 0, getNextPacketId(c), 1, &topic, (int*)&qos);
+    len = MQTTSerialize_subscribe(c->buf, c->buf_size, 0, getNextPacketId(c), 1, &topic, &charQos);
     if (len <= 0)
         goto exit;
     if ((rc = sendPacket(c, len, &timer)) != SUCCESSS) // send the subscribe packet

Internet/MQTT/MQTTPacket/src/MQTTFormat.c

@@ -119,8 +119,6 @@ char* MQTTFormat_toClientString(char* strbuf, int strbuflen, unsigned char* buf,
 	int index = 0;
 	int rem_length = 0;
 	MQTTHeader header = {0};
-	int strindex = 0;
-
 	header.byte = buf[index++];
 	index += MQTTPacket_decodeBuf(&buf[index], &rem_length);
 
@@ -130,7 +128,7 @@ char* MQTTFormat_toClientString(char* strbuf, int strbuflen, unsigned char* buf,
 	{
 		unsigned char sessionPresent, connack_rc;
 		if (MQTTDeserialize_connack(&sessionPresent, &connack_rc, buf, buflen) == 1)
-			strindex = MQTTStringFormat_connack(strbuf, strbuflen, connack_rc, sessionPresent);
+			MQTTStringFormat_connack(strbuf, strbuflen, connack_rc, sessionPresent);
 	}
 	break;
 	case PUBLISH:
@@ -141,7 +139,7 @@ char* MQTTFormat_toClientString(char* strbuf, int strbuflen, unsigned char* buf,
 		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,
+			MQTTStringFormat_publish(strbuf, strbuflen, dup, qos, retained, packetid,
 					topicName, payload, payloadlen);
 	}
 	break;
@@ -153,7 +151,7 @@ char* MQTTFormat_toClientString(char* strbuf, int strbuflen, unsigned char* buf,
 		unsigned char packettype, dup;
 		unsigned short packetid;
 		if (MQTTDeserialize_ack(&packettype, &dup, &packetid, buf, buflen) == 1)
-			strindex = MQTTStringFormat_ack(strbuf, strbuflen, packettype, dup, packetid);
+			MQTTStringFormat_ack(strbuf, strbuflen, packettype, dup, packetid);
 	}
 	break;
 	case SUBACK:
@@ -162,20 +160,20 @@ char* MQTTFormat_toClientString(char* strbuf, int strbuflen, unsigned char* buf,
 		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);
+			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);
+			MQTTStringFormat_ack(strbuf, strbuflen, UNSUBACK, 0, packetid);
 	}
 	break;
 	case PINGREQ:
 	case PINGRESP:
 	case DISCONNECT:
-		strindex = snprintf(strbuf, strbuflen, "%s", MQTTPacket_names[header.bits.type]);
+		snprintf(strbuf, strbuflen, "%s", MQTTPacket_names[header.bits.type]);
 		break;
 	}
 	return strbuf;
@@ -187,7 +185,6 @@ char* MQTTFormat_toServerString(char* strbuf, int strbuflen, unsigned char* buf,
 	int index = 0;
 	int rem_length = 0;
 	MQTTHeader header = {0};
-	int strindex = 0;
 
 	header.byte = buf[index++];
 	index += MQTTPacket_decodeBuf(&buf[index], &rem_length);
@@ -199,7 +196,7 @@ char* MQTTFormat_toServerString(char* strbuf, int strbuflen, unsigned char* buf,
 		MQTTPacket_connectData data;
 		int rc;
 		if ((rc = MQTTDeserialize_connect(&data, buf, buflen)) == 1)
-			strindex = MQTTStringFormat_connect(strbuf, strbuflen, &data);
+			MQTTStringFormat_connect(strbuf, strbuflen, &data);
 	}
 	break;
 	case PUBLISH:
@@ -210,7 +207,7 @@ char* MQTTFormat_toServerString(char* strbuf, int strbuflen, unsigned char* buf,
 		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,
+			MQTTStringFormat_publish(strbuf, strbuflen, dup, qos, retained, packetid,
 					topicName, payload, payloadlen);
 	}
 	break;
@@ -222,7 +219,7 @@ char* MQTTFormat_toServerString(char* strbuf, int strbuflen, unsigned char* buf,
 		unsigned char packettype, dup;
 		unsigned short packetid;
 		if (MQTTDeserialize_ack(&packettype, &dup, &packetid, buf, buflen) == 1)
-			strindex = MQTTStringFormat_ack(strbuf, strbuflen, packettype, dup, packetid);
+			MQTTStringFormat_ack(strbuf, strbuflen, packettype, dup, packetid);
 	}
 	break;
 	case SUBSCRIBE:
@@ -234,7 +231,7 @@ char* MQTTFormat_toServerString(char* strbuf, int strbuflen, unsigned char* buf,
 		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);;
+			MQTTStringFormat_subscribe(strbuf, strbuflen, dup, packetid, count, topicFilters, requestedQoSs);;
 	}
 	break;
 	case UNSUBSCRIBE:
@@ -244,13 +241,13 @@ char* MQTTFormat_toServerString(char* strbuf, int strbuflen, unsigned char* buf,
 		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);
+			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]);
+		snprintf(strbuf, strbuflen, "%s", MQTTPacket_names[header.bits.type]);
 		break;
 	}
 	strbuf[strbuflen] = '\0';

Internet/MQTT/MQTTPacket/src/MQTTSubscribe.h

@@ -26,7 +26,7 @@
 #endif
 
 DLLExport int MQTTSerialize_subscribe(unsigned char* buf, int buflen, unsigned char dup, unsigned short packetid,
-		int count, MQTTString topicFilters[], int requestedQoSs[]);
+		int count, MQTTString topicFilters[], char requestedQoSs[]);
 
 DLLExport int MQTTDeserialize_subscribe(unsigned char* dup, unsigned short* packetid,
 		int maxcount, int* count, MQTTString topicFilters[], int requestedQoSs[], unsigned char* buf, int len);

Internet/MQTT/MQTTPacket/src/MQTTSubscribeClient.c

@@ -48,7 +48,7 @@ int MQTTSerialize_subscribeLength(int count, MQTTString topicFilters[])
   * @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[])
+		MQTTString topicFilters[], char requestedQoSs[])
 {
 	unsigned char *ptr = buf;
 	MQTTHeader header = {0};

Internet/MQTT/mqtt_interface.c

@@ -42,6 +42,7 @@
 
 #include "mqtt_interface.h"
 #include "wizchip_conf.h"
+#include "socket.h"
 
 unsigned long MilliTimer;
 
@@ -122,12 +123,15 @@ void NewNetwork(Network* n, int sn) {
  *         that contains the configuration information for the Network.
  *         buffer : pointer to a read buffer.
  *         len : buffer length.
+ * @retval received data length or SOCKERR code
  */
-int w5x00_read(Network* n, unsigned char* buffer, int len)
+int w5x00_read(Network* n, unsigned char* buffer, int len, long time)
 {
 
 	if((getSn_SR(n->my_socket) == SOCK_ESTABLISHED) && (getSn_RX_RSR(n->my_socket)>0))
 		return recv(n->my_socket, buffer, len);
+
+	return SOCK_ERROR;
 }
 
 /*
@@ -136,11 +140,14 @@ int w5x00_read(Network* n, unsigned char* buffer, int len)
  *         that contains the configuration information for the Network.
  *         buffer : pointer to a read buffer.
  *         len : buffer length.
+ * @retval length of data sent or SOCKERR code
  */
-int w5x00_write(Network* n, unsigned char* buffer, int len)
+int w5x00_write(Network* n, unsigned char* buffer, int len, long time)
 {
 	if(getSn_SR(n->my_socket) == SOCK_ESTABLISHED)
 		return send(n->my_socket, buffer, len);
+
+	return SOCK_ERROR;
 }
 
 /*
@@ -160,9 +167,9 @@ void w5x00_disconnect(Network* n)
  *         ip : server iP.
  *         port : server port.
  */
-int ConnectNetwork(Network* n, char* ip, int port)
+void ConnectNetwork(Network* n, uint8_t* ip, uint16_t port)
 {
-	uint8_t myport = 12345;
+	uint16_t myport = 12345;
 
 	socket(n->my_socket,Sn_MR_TCP,myport,0);
 	connect(n->my_socket,ip,port);

Internet/MQTT/mqtt_interface.h

@@ -212,6 +212,13 @@ int main(void)
 #ifndef __MQTT_INTERFACE_H_
 #define __MQTT_INTERFACE_H_
 
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
 /*
  * @brief MQTT MilliTimer handler
  * @note MUST BE register to your system 1m Tick timer handler
@@ -234,8 +241,8 @@ typedef struct Network Network;
 struct Network
 {
 	int my_socket;
-	int (*mqttread) (Network*, unsigned char*, int, int);
-	int (*mqttwrite) (Network*, unsigned char*, int, int);
+	int (*mqttread) (Network*, unsigned char*, int, long);
+	int (*mqttwrite) (Network*, unsigned char*, int, long);
 	void (*disconnect) (Network*);
 };
 
@@ -251,10 +258,14 @@ int TimerLeftMS(Timer*);
 /*
  * @brief Network interface porting
  */
-int w5x00_read(Network*, unsigned char*, int);
-int w5x00_write(Network*, unsigned char*, int);
+int w5x00_read(Network*, unsigned char*, int, long);
+int w5x00_write(Network*, unsigned char*, int, long);
 void w5x00_disconnect(Network*);
 void NewNetwork(Network* n, int sn);
-int ConnectNetwork(Network*, char*, int);
+void ConnectNetwork(Network* n, uint8_t* ip, uint16_t port);
+
+#ifdef __cplusplus
+}
+#endif
 
 #endif //__MQTT_INTERFACE_H_

Internet/SNMP/snmp.h

@@ -1,6 +1,10 @@
 #ifndef _SNMP_H_
 #define _SNMP_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 // SNMP Debug Message (dump) Enable
 #define _SNMP_DEBUG_
 
@@ -111,4 +115,8 @@ void SNMP_time_handler(void);
 uint32_t getSNMPTimeTick(void);
 void currentUptime(void *ptr, uint8_t *len);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif

Internet/SNMP/snmp_custom.h

@@ -1,6 +1,10 @@
 #ifndef _SNMP_CUSTOM_H_
 #define _SNMP_CUSTOM_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdio.h>
 #include <string.h>
 #include <stdarg.h>
@@ -30,4 +34,8 @@ void initTable();
 /* SNMP Trap: warmStart(1) */
 void initial_Trap(uint8_t * managerIP, uint8_t * agentIP);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif

Internet/SNTP/sntp.h

@@ -8,6 +8,10 @@
 #ifndef SNTP_H_
 #define SNTP_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 
 /*
@@ -65,4 +69,8 @@ int8_t SNTP_run(datetime *time);
 tstamp changedatetime_to_seconds(void);
 void calcdatetime(tstamp seconds);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* SNTP_H_ */

Internet/TFTP/netutil.h

@@ -2,6 +2,10 @@
 #ifndef __NETUTIL_H__
 #define __NETUTIL_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 
 #define SYSTEM_LITTLE_ENDIAN
@@ -16,4 +20,8 @@ uint32_t htonl(uint32_t hostlong);
 uint32_t ntohs(uint16_t netshort);
 uint32_t ntohl(uint32_t netlong);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif

Internet/TFTP/tftp.h

@@ -7,6 +7,10 @@
 #ifndef __TFTP_H__
 #define __TFTP_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 
 #define F_APP_TFTP
@@ -90,4 +94,8 @@ int TFTP_run(void);
 void TFTP_read_request(uint32_t server_ip, uint8_t *filename);
 void tftp_timeout_handler(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif	/*__TFTP_H__ */

Internet/httpServer/httpParser.h

@@ -8,6 +8,10 @@
 #ifndef	__HTTPPARSER_H__
 #define	__HTTPPARSER_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 //#define _HTTPPARSER_DEBUG_
 
 #define HTTP_SERVER_PORT		80		/**< HTTP server well-known port number */
@@ -147,4 +151,8 @@ uint16_t ATOI(uint8_t * str, uint8_t base);
 void mid(char* src, char* s1, char* s2, char* sub);
 void inet_addr_(uint8_t * addr, uint8_t * ip);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif	/* end of __HTTPPARSER_H__ */

Internet/httpServer/httpServer.h

@@ -8,6 +8,10 @@
 #ifndef	__HTTPSERVER_H__
 #define	__HTTPSERVER_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 // HTTP Server debug message enable
 #define _HTTPSERVER_DEBUG_
 
@@ -100,4 +104,8 @@ uint8_t display_reg_webContent_list(void);
 void httpServer_time_handler(void);
 uint32_t get_httpServer_timecount(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif

Internet/httpServer/httpUtil.h

@@ -12,6 +12,10 @@
 #ifndef	__HTTPUTIL_H__
 #define	__HTTPUTIL_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include "httpServer.h"
 #include "httpParser.h"
 
@@ -21,4 +25,8 @@ uint8_t http_post_cgi_handler(uint8_t * uri_name, st_http_request * p_http_reque
 uint8_t predefined_get_cgi_processor(uint8_t * uri_name, uint8_t * buf, uint16_t * len);
 uint8_t predefined_set_cgi_processor(uint8_t * uri_name, uint8_t * uri, uint8_t * buf, uint16_t * len);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif