portBASE_TYPE xNetifInit( void )
{
portBASE_TYPE x;
pcap_if_t *pxAllNetworkInterfaces;
/* Allocate a free buffer to each buffer pointer. */
for( x = 0; x < sizeof( pucEthernetBufferPointers ) / sizeof( unsigned char * ); x++ )
{
pucEthernetBufferPointers[ x ] = &( ucEthernetBuffer[ x ][ 0 ] );
}
/* Start with uip_buf pointing to a buffer that is not referenced from the
pucEthernetBufferPointers[] array. */
uip_buf = &( ucEthernetBuffer[ archNUM_BUFFERS - 1 ][ 0 ] );
/* Query the computer the simulation is being executed on to find the
network interfaces it has installed. */
pxAllNetworkInterfaces = prvPrintAvailableNetworkInterfaces();
/* Open the network interface. The number of the interface to be opened is
set by the configNETWORK_INTERFACE_TO_USE constant in FreeRTOSConfig.h.
Calling this function will set the pxOpenedInterfaceHandle variable. If,
after calling this function, pxOpenedInterfaceHandle is equal to NULL, then
the interface could not be opened. */
if( pxAllNetworkInterfaces != NULL )
{
prvOpenSelectedNetworkInterface( pxAllNetworkInterfaces );
}
return x;
}
portBASE_TYPE xNetworkInterfaceInitialise( void )
{
portBASE_TYPE xReturn = pdFALSE;
pcap_if_t *pxAllNetworkInterfaces;
if( xPCAPMutex == NULL )
{
xPCAPMutex = xSemaphoreCreateMutex();
configASSERT( xPCAPMutex );
}
/* Query the computer the simulation is being executed on to find the
network interfaces it has installed. */
pxAllNetworkInterfaces = prvPrintAvailableNetworkInterfaces();
/* Open the network interface. The number of the interface to be opened is
set by the configNETWORK_INTERFACE_TO_USE constant in FreeRTOSConfig.h.
Calling this function will set the pxOpenedInterfaceHandle variable. If,
after calling this function, pxOpenedInterfaceHandle is equal to NULL, then
the interface could not be opened. */
if( pxAllNetworkInterfaces != NULL )
{
prvOpenSelectedNetworkInterface( pxAllNetworkInterfaces );
}
if( pxOpenedInterfaceHandle != NULL )
{
xReturn = pdPASS;
}
return xReturn;
}
/**
* In this function, the hardware should be initialized.
* Called from ethernetif_init().
*
* @param pxNetIf the already initialized lwip network interface structure
* for this ethernetif.
*/
static void prvLowLevelInit( struct netif *pxNetIf )
{
pcap_if_t *pxAllNetworkInterfaces;
/* set MAC hardware address length */
pxNetIf->hwaddr_len = ETHARP_HWADDR_LEN;
/* set MAC hardware address */
pxNetIf->hwaddr[ 0 ] = configMAC_ADDR0;
pxNetIf->hwaddr[ 1 ] = configMAC_ADDR1;
pxNetIf->hwaddr[ 2 ] = configMAC_ADDR2;
pxNetIf->hwaddr[ 3 ] = configMAC_ADDR3;
pxNetIf->hwaddr[ 4 ] = configMAC_ADDR4;
pxNetIf->hwaddr[ 5 ] = configMAC_ADDR5;
/* device capabilities */
/* don't set pxNetIf_FLAG_ETHARP if this device is not an ethernet one */
pxNetIf->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
/* Query the computer the simulation is being executed on to find the
network interfaces it has installed. */
pxAllNetworkInterfaces = prvPrintAvailableNetworkInterfaces();
/* Open the network interface. The number of the interface to be opened is
set by the configNETWORK_INTERFACE_TO_USE constant in FreeRTOSConfig.h.
Calling this function will set the pxOpenedInterfaceHandle variable. If,
after calling this function, pxOpenedInterfaceHandle is equal to NULL, then
the interface could not be opened. */
if( pxAllNetworkInterfaces != NULL )
{
prvOpenSelectedNetworkInterface( pxAllNetworkInterfaces );
}
/* Remember which interface was opened as it is used in the interrupt
simulator task. */
pxlwIPNetIf = pxNetIf;
}
