unsigned int lwIPDHCPStart(unsigned int instNum, unsigned int slvPortNum)
{
unsigned int *ipAddrPtr;
unsigned int ifNum;
ifNum = instNum * MAX_SLAVEPORT_PER_INST + slvPortNum - 1;
lwIPDHCPComplete(ifNum);
ipAddrPtr = (unsigned int*)&(cpswNetIF[ifNum].ip_addr);
return (*ipAddrPtr);
}
/**
* @brief Starts the interface in Lwip according to its mode.
*
* @param lwipIf The addresses and modes to set.
* @param ifNum The interface to set.
*
* @return True if mode ok, false otherwise.
*/
static bool netifStart(LWIP_IF* const lwipIf, const unsigned int ifNum)
{
bool ret = true;
switch(lwipIf->ipMode)
{
case IPADDR_USE_DHCP:
ret = lwIPDHCPComplete(ifNum);
break;
case IPADDR_USE_AUTOIP:
autoip_start(&cpswNetIF[ifNum]);
/*This has no break on purpose, since both autoip and static must do netif_set_up*/
case IPADDR_USE_STATIC:
netif_set_up(&cpswNetIF[ifNum]);
break;
default:
ret = false;
}
return ret;
}
/**
*
* \brief Initializes the lwIP TCP/IP stack.
*
* \param lwipIf The interface structure for lwIP
*
* \return IP Address.
*/
unsigned int lwIPInit(LWIP_IF *lwipIf,char *hwOK)
{
struct ip_addr ip_addr;
struct ip_addr net_mask;
struct ip_addr gw_addr;
unsigned int *ipAddrPtr;
static unsigned int lwipInitFlag = 0;
unsigned int ifNum;
unsigned int temp;
/* do lwip library init only once */
if(0 == lwipInitFlag)
{
lwip_init();
}
/* Setup the network address values. */
if(lwipIf->ipMode == IPADDR_USE_STATIC)
{
ip_addr.addr = htonl(lwipIf->ipAddr);
net_mask.addr = htonl(lwipIf->netMask);
gw_addr.addr = htonl(lwipIf->gwAddr);
}
else
{
ip_addr.addr = 0;
net_mask.addr = 0;
gw_addr.addr = 0;
}
#ifdef CPSW_DUAL_MAC_MODE
ifNum = (lwipIf->instNum * MAX_SLAVEPORT_PER_INST) + lwipIf->slvPortNum - 1;
#else
ifNum = lwipIf->instNum;
#endif
cpswPortIf[ifNum].inst_num = lwipIf->instNum;
cpswPortIf[ifNum].port_num = lwipIf->slvPortNum;
/* set MAC hardware address */
for(temp = 0; temp < LEN_MAC_ADDRESS; temp++)
{
cpswPortIf[ifNum].eth_addr[temp] =
lwipIf->macArray[(LEN_MAC_ADDRESS - 1) - temp];
}
/*
** Create, configure and add the Ethernet controller interface with
** default settings. ip_input should be used to send packets directly to
** the stack. The lwIP will internaly call the cpswif_init function.
*/
if(NULL ==
netif_add(&cpswNetIF[ifNum], &ip_addr, &net_mask, &gw_addr,
&cpswPortIf[ifNum], cpswif_init, ip_input,hwOK))
{
LWIP_PRINTF("\n\rUnable to add interface for interface %d", ifNum);
return 0;
}
if(0 == lwipInitFlag)
{
netif_set_default(&cpswNetIF[ifNum]);
lwipInitFlag = 1;
}
/* Start DHCP, if enabled. */
#if LWIP_DHCP
if(lwipIf->ipMode == IPADDR_USE_DHCP)
{
lwIPDHCPComplete(ifNum);
}
#endif
/* Start AutoIP, if enabled and DHCP is not. */
#if LWIP_AUTOIP
if(lwipIf->ipMode == IPADDR_USE_AUTOIP)
{
autoip_start(&cpswNetIF[ifNum]);
}
#endif
if((lwipIf->ipMode == IPADDR_USE_STATIC)
||(lwipIf->ipMode == IPADDR_USE_AUTOIP))
{
/* Bring the interface up */
netif_set_up(&cpswNetIF[ifNum]);
}
ipAddrPtr = (unsigned int*)&(cpswNetIF[ifNum].ip_addr);
return (*ipAddrPtr);
}
