/* Includes ------------------------------------------------------------------*/

#include "lwip/opt.h"

#include "lwip/dhcp.h"

#include "app_ethernet.h"

#include "ethernetif.h"

#include <stdio.h>

#include "dns.h"

#include "net_config.h"

//#include "Serial.h"

#include "Console.h"

#define CONSOLE 0

#ifdef USE_DHCP

#define MAX_DHCP_TRIES 4

uint32_t DHCPfineTimer = 0;

__IO uint8_t DHCP_state;

#endif

#if 1

/* Private function prototypes -----------------------------------------------*/

/* Private functions ---------------------------------------------------------*/

/**

* @brief Notify the User about the nework interface config status

* @param netif: the network interface

* @retval None

*/

void user_notification(struct netif *netif)

{

if (netif_is_up(netif))

{

#ifdef USE_DHCP

/* Update DHCP state machine */

DHCP_state = DHCP_START;

#else

uint8_t iptxt[80];

sprintf((char*)iptxt, "Static IP address: %d.%d.%d.%d", IP_ADDR0, IP_ADDR1, IP_ADDR2, IP_ADDR3);

WriteConsole( iptxt);

#endif /* USE_DHCP */

}

else

{

#ifdef USE_DHCP

/* Update DHCP state machine */

DHCP_state = DHCP_LINK_DOWN;

#endif /* USE_DHCP */

WriteConsole("The network cable is not connected \n");

}

}

#endif

#if 0

/**

* @brief This function notify user about link status changement.

* @param netif: the network interface

* @retval None

*/

void ethernetif_notify_conn_changed(struct netif *netif)

{

struct ip_addr ipaddr;

struct ip_addr netmask;

struct ip_addr gw;

if(netif_is_link_up(netif))

{

#ifdef USE_DHCP

WriteConsole ("The network cable is now connected \n");

/* Update DHCP state machine */

DHCP_state = DHCP_START;

#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);

uint8_t iptxt[80];

sprintf((char*)iptxt, "%d.%d.%d.%d", IP_ADDR0, IP_ADDR1, IP_ADDR2, IP_ADDR3);

WriteConsole ("The network cable is now connected \n");

sprintf((char*)iptxt, "Static IP address: %d.%d.%d.%d", IP_ADDR0, IP_ADDR1, IP_ADDR2, IP_ADDR3);

WriteConsole (iptxt);

#endif /* USE_DHCP */

netif_set_addr(netif, &ipaddr , &netmask, &gw);

/* When the netif is fully configured this function must be called.*/

netif_set_up(netif);

}

else

{

#ifdef USE_DHCP

/* Update DHCP state machine */

DHCP_state = DHCP_LINK_DOWN;

#endif /* USE_DHCP */

/* When the netif link is down this function must be called.*/

netif_set_down(netif);

WriteConsole ("The network cable is not connected \n");

}

}

#endif

#ifdef USE_DHCP

/**

* @brief DHCP Process

* @param argument: network interface

* @retval None

*/

void dhcp_process(void const * argument)

{

struct netif *netif = (struct netif *) argument;

struct ip_addr ipaddr;

struct ip_addr netmask;

struct ip_addr gw;

uint32_t IPaddress = 0;

int mscnt =0;

netif->ip_addr.addr = 0;

netif->netmask.addr = 0;

netif->gw.addr = 0;

dhcp_start(netif);

DHCP_state = DHCP_WAIT_ADDRESS;

// int DHCP_state = DHCP_START;

while( 1 )

{

osDelay(DHCP_FINE_TIMER_MSECS);

dhcp_fine_tmr();

mscnt += DHCP_FINE_TIMER_MSECS;

if (mscnt >= DHCP_COARSE_TIMER_SECS*1000) {

dhcp_coarse_tmr();

mscnt = 0;

}

switch (DHCP_state)

{

case DHCP_WAIT_ADDRESS:

{

/* Read the new IP address */

IPaddress = netif->ip_addr.addr;

if (IPaddress!=0)

{

dhcp_renew(netif);

DHCP_state = DHCP_ADDRESS_ASSIGNED;

#if 1

uint8_t iptab[4];

char iptxt[80];

iptab[0] = (uint8_t)(IPaddress >> 24);

iptab[1] = (uint8_t)(IPaddress >> 16);

iptab[2] = (uint8_t)(IPaddress >> 8);

iptab[3] = (uint8_t)(IPaddress);

sprintf(iptxt, "IP address assigned by a DHCP server: %d.%d.%d.%d", iptab[3], iptab[2], iptab[1], iptab[0]);

WriteConsole ("address IP affecté\n");

#endif

return;

}

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);

return;

#if CONSOLE

char iptxt[80];

sprintf((char*)iptxt, "%Static IP address : d.%d.%d.%d", IP_ADDR0, IP_ADDR1, IP_ADDR2, IP_ADDR3);

WriteConsole("DHCP timeout !!\n");

WriteConsole(iptxt);

#endif

}

else

netif->dhcp->tries++;

}

}

break;

default: break;

}

}

}

#endif /* USE_DHCP */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/