static
#endif
void ethernetif_input(void * pvParameters)
{
struct netif *netif = (struct netif *)pvParameters;
struct pbuf *p;
#ifdef FREERTOS_USED
for( ;; )
{
do
{
#endif
/* move received packet into a new pbuf */
p = low_level_input( netif );
if( p == NULL )
{
#ifdef FREERTOS_USED
/* No packet could be read. Wait a for an interrupt to tell us
there is more data available. */
vMACBWaitForInput(100);
}
}while( p == NULL );
#else
return;
}
#endif
if( ERR_OK != netif->input( p, netif ) )
{
pbuf_free(p);
p = NULL;
}
#ifdef FREERTOS_USED
}
/*!
* \brief Manage the Ethernet packets, if any received process them
* After processing any packets, manage the lwIP timers
*/
void ethernet_task(void)
{
/* Check once to see if packet is ready before managing the timers */
if(vMACBWaitForInput(1))
{
// Process received packet
ethernetif_input(&MACB_if);
}
/* Manages all the timers lwIP requires in standalone mode */
manage_timers();
}
void ethernetif_input( void * pvParameters )
{
struct ethernetif *ethernetif;
struct eth_hdr *ethhdr;
struct pbuf *p;
( void ) pvParameters;
for( ;; ) {
ethernetif = xNetIf->state;
do
{
ethernetif = xNetIf->state;
/* move received packet into a new pbuf */
p = low_level_input( xNetIf );
if( p == NULL )
{
/* No packet could be read. Wait a for an interrupt to tell us
there is more data available. */
vMACBWaitForInput(100);
}
} while( p == NULL );
/* points to packet payload, which starts with an Ethernet header */
ethhdr = p->payload;
#if LINK_STATS
lwip_stats.link.recv++;
#endif /* LINK_STATS */
ethhdr = p->payload;
switch( htons( ethhdr->type ) )
{
/* IP packet? */
case ETHTYPE_IP:
/* update ARP table */
etharp_ip_input( xNetIf, p );
/* skip Ethernet header */
pbuf_header( p, (s16_t)-sizeof(struct eth_hdr) );
/* pass to network layer */
xNetIf->input( p, xNetIf );
break;
case ETHTYPE_ARP:
/* pass p to ARP module */
etharp_arp_input( xNetIf, ethernetif->ethaddr, p );
break;
default:
pbuf_free( p );
p = NULL;
break;
}
}
}
