Diff: netconf.cpp

Revision:

1:a3ee8cb24540

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netconf.cpp	Mon Jul 02 14:36:46 2018 +0000
@@ -0,0 +1,297 @@
+/**
+  ******************************************************************************
+  * @file    netconf.c
+  * @author  MCD Application Team
+  * @version V1.0.0
+  * @date    31-October-2011
+  * @brief   Network connection configuration
+  ******************************************************************************
+  * @attention
+  *
+  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+  *
+  * <h2><center>&copy; Portions COPYRIGHT 2011 STMicroelectronics</center></h2>
+  ******************************************************************************
+  */
+/**
+  ******************************************************************************
+  * <h2><center>&copy; Portions COPYRIGHT 2012 Embest Tech. Co., Ltd.</center></h2>
+  * @file    netconf.c
+  * @author  CMP Team
+  * @version V1.0.0
+  * @date    28-December-2012
+  * @brief   Network connection configuration     
+  *          Modified to support the STM32F4DISCOVERY, STM32F4DIS-BB and
+  *          STM32F4DIS-LCD modules. 
+  ******************************************************************************
+  * @attention
+  *
+  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+  * TIME. AS A RESULT, Embest SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
+  * OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
+  * OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
+  * CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+  ******************************************************************************
+  */ 
+/* Includes ------------------------------------------------------------------*/
+#include "lwip/mem.h"
+#include "lwip/memp.h"
+#include "lwip/tcp.h"
+#include "lwip/udp.h"
+#include "netif/etharp.h"
+#include "lwip/dhcp.h"
+#include "ethernetif.h"
+#include "main.h"
+#include "netconf.h"
+#include <stdio.h>
+
+/* Private typedef -----------------------------------------------------------*/
+#define MAX_DHCP_TRIES        4
+
+/* Private define ------------------------------------------------------------*/
+typedef enum 
+{ 
+  DHCP_START=0,
+  DHCP_WAIT_ADDRESS,
+  DHCP_ADDRESS_ASSIGNED,
+  DHCP_TIMEOUT
+} 
+DHCP_State_TypeDef;
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+struct netif netif;
+uint32_t TCPTimer = 0;
+uint32_t ARPTimer = 0;
+uint32_t IPaddress = 0;
+
+#ifdef USE_DHCP
+uint32_t DHCPfineTimer = 0;
+uint32_t DHCPcoarseTimer = 0;
+DHCP_State_TypeDef DHCP_state = DHCP_START;
+#endif
+
+/* Private functions ---------------------------------------------------------*/
+void LwIP_DHCP_Process_Handle(void);
+/**
+  * @brief  Initializes the lwIP stack
+  * @param  None
+  * @retval None
+  */
+void LwIP_Init(void)
+{
+  struct ip_addr ipaddr;
+  struct ip_addr netmask;
+  struct ip_addr gw;
+#ifndef USE_DHCP
+  uint8_t iptab[4];
+  uint8_t iptxt[20];
+#endif
+
+  /* Initializes the dynamic memory heap defined by MEM_SIZE.*/
+  mem_init();
+
+  /* Initializes the memory pools defined by MEMP_NUM_x.*/
+  memp_init();
+
+#ifdef USE_DHCP
+  ipaddr.addr = 0;
+  netmask.addr = 0;
+  gw.addr = 0;
+#else
+  IP4_ADDR(&ipaddr, IP_ADDR0, IP_ADDR1, IP_ADDR2, IP_ADDR3);
+  IP4_ADDR(&netmask, NETMASK_ADDR0, NETMASK_ADDR1 , NETMASK_ADDR2, NETMASK_ADDR3);
+  IP4_ADDR(&gw, GW_ADDR0, GW_ADDR1, GW_ADDR2, GW_ADDR3);
+
+#ifdef USE_LCD  
+  iptab[0] = IP_ADDR3;
+  iptab[1] = IP_ADDR2;
+  iptab[2] = IP_ADDR1;
+  iptab[3] = IP_ADDR0;
+
+  sprintf((char*)iptxt, "  %d.%d.%d.%d", iptab[3], iptab[2], iptab[1], iptab[0]); 
+     
+  LCD_DisplayStringLine(Line8, (uint8_t*)"  Static IP address   ");
+  LCD_DisplayStringLine(Line9, iptxt);
+#endif
+#endif
+
+  /* - netif_add(struct netif *netif, struct ip_addr *ipaddr,
+            struct ip_addr *netmask, struct ip_addr *gw,
+            void *state, err_t (* init)(struct netif *netif),
+            err_t (* input)(struct pbuf *p, struct netif *netif))
+    
+   Adds your network interface to the netif_list. Allocate a struct
+  netif and pass a pointer to this structure as the first argument.
+  Give pointers to cleared ip_addr structures when using DHCP,
+  or fill them with sane numbers otherwise. The state pointer may be NULL.
+
+  The init function pointer must point to a initialization function for
+  your ethernet netif interface. The following code illustrates it's use.*/
+  netif_add(&netif, &ipaddr, &netmask, &gw, NULL, &ethernetif_init, &ethernet_input);
+
+  /*  Registers the default network interface.*/
+  netif_set_default(&netif);
+
+  /*  When the netif is fully configured this function must be called.*/
+  netif_set_up(&netif);
+}
+
+/**
+  * @brief  Called when a frame is received
+  * @param  None
+  * @retval None
+  */
+void LwIP_Pkt_Handle(void)
+{
+  /* Read a received packet from the Ethernet buffers and send it to the lwIP for handling */
+  ethernetif_input(&netif);
+}
+
+/**
+  * @brief  LwIP periodic tasks
+  * @param  localtime the current LocalTime value
+  * @retval None
+  */
+void LwIP_Periodic_Handle(__IO uint32_t localtime)
+{
+#if LWIP_TCP
+  /* TCP periodic process every 250 ms */
+  if (localtime - TCPTimer >= TCP_TMR_INTERVAL) {
+    TCPTimer =  localtime;
+    tcp_tmr();
+  }
+#endif
+  
+  /* ARP periodic process every 5s */
+  if ((localtime - ARPTimer) >= ARP_TMR_INTERVAL) {
+    ARPTimer =  localtime;
+    etharp_tmr();
+  }
+
+#ifdef USE_DHCP
+  /* Fine DHCP periodic process every 500ms */
+  if (localtime - DHCPfineTimer >= DHCP_FINE_TIMER_MSECS) {
+    DHCPfineTimer =  localtime;
+    dhcp_fine_tmr();
+    if ((DHCP_state != DHCP_ADDRESS_ASSIGNED)&&(DHCP_state != DHCP_TIMEOUT)) {
+      /* process DHCP state machine */
+      LwIP_DHCP_Process_Handle();    
+    }
+  }
+
+  /* DHCP Coarse periodic process every 60s */
+  if (localtime - DHCPcoarseTimer >= DHCP_COARSE_TIMER_MSECS) {
+    DHCPcoarseTimer =  localtime;
+    dhcp_coarse_tmr();
+  }
+  
+#endif
+}
+
+#ifdef USE_DHCP
+/**
+  * @brief  LwIP_DHCP_Process_Handle
+  * @param  None
+  * @retval None
+  */
+void LwIP_DHCP_Process_Handle()
+{
+  struct ip_addr ipaddr;
+  struct ip_addr netmask;
+  struct ip_addr gw;
+  uint8_t iptab[4];
+  uint8_t iptxt[20];
+
+  switch (DHCP_state)
+  {
+    case DHCP_START:
+    {
+      dhcp_start(&netif);
+      IPaddress = 0;
+      DHCP_state = DHCP_WAIT_ADDRESS;
+#ifdef USE_LCD
+      LCD_DisplayStringLine(Line4, (uint8_t*)"     Looking for    ");
+      LCD_DisplayStringLine(Line5, (uint8_t*)"     DHCP server    ");
+      LCD_DisplayStringLine(Line6, (uint8_t*)"     please wait... ");
+#endif
+    }
+    break;
+
+    case DHCP_WAIT_ADDRESS:
+    {
+      /* Read the new IP address */
+      IPaddress = netif.ip_addr.addr;
+
+      if (IPaddress!=0) {
+        DHCP_state = DHCP_ADDRESS_ASSIGNED;	
+
+        /* Stop DHCP */
+        dhcp_stop(&netif);
+
+        iptab[0] = (uint8_t)(IPaddress >> 24);
+        iptab[1] = (uint8_t)(IPaddress >> 16);
+        iptab[2] = (uint8_t)(IPaddress >> 8);
+        iptab[3] = (uint8_t)(IPaddress);
+
+        sprintf((char*)iptxt, " %d.%d.%d.%d", iptab[3], iptab[2], iptab[1], iptab[0]);       
+
+#ifdef USE_LCD
+
+
+        LCD_ClearLine(Line4);
+        LCD_ClearLine(Line5);
+        LCD_ClearLine(Line6);
+
+        /* Display the IP address */
+        LCD_DisplayStringLine(Line7, (uint8_t*)"IP address assigned ");
+        LCD_DisplayStringLine(Line8, (uint8_t*)"  by a DHCP server  ");
+        LCD_DisplayStringLine(Line9, iptxt);
+#endif
+      } else {
+        /* DHCP timeout */
+        if (netif.dhcp->tries > MAX_DHCP_TRIES) {
+          DHCP_state = DHCP_TIMEOUT;
+
+          /* Stop DHCP */
+          dhcp_stop(&netif);
+
+          /* Static address used */
+          IP4_ADDR(&ipaddr, IP_ADDR0 ,IP_ADDR1 , IP_ADDR2 , IP_ADDR3 );
+          IP4_ADDR(&netmask, NETMASK_ADDR0, NETMASK_ADDR1, NETMASK_ADDR2, NETMASK_ADDR3);
+          IP4_ADDR(&gw, GW_ADDR0, GW_ADDR1, GW_ADDR2, GW_ADDR3);
+          netif_set_addr(&netif, &ipaddr , &netmask, &gw);
+
+#ifdef USE_LCD   
+          LCD_DisplayStringLine(Line7, (uint8_t*)"    DHCP timeout    ");
+
+          iptab[0] = IP_ADDR3;
+          iptab[1] = IP_ADDR2;
+          iptab[2] = IP_ADDR1;
+          iptab[3] = IP_ADDR0;
+
+          sprintf((char*)iptxt, "  %d.%d.%d.%d", iptab[3], iptab[2], iptab[1], iptab[0]); 
+
+          LCD_ClearLine(Line4);
+          LCD_ClearLine(Line5);
+          LCD_ClearLine(Line6);
+
+          LCD_DisplayStringLine(Line8, (uint8_t*)"  Static IP address   ");
+          LCD_DisplayStringLine(Line9, iptxt);         
+#endif
+        }
+      }
+    }
+    break;
+    default: break;
+  }
+}
+#endif      
+
+/*********** Portions COPYRIGHT 2012 Embest Tech. Co., Ltd.*****END OF FILE****/
+