void vuIP_Task( void *pvParameters )
{
portBASE_TYPE i;
unsigned long ulNewEvent = 0UL;
unsigned long ulUIP_Events = 0UL;
( void ) pvParameters;
/* Initialise the uIP stack. */
prvInitialise_uIP();
/* Initialise the MAC. */
vInitEmac();
while( lEMACWaitForLink() != pdPASS )
{
vTaskDelay( uipINIT_WAIT );
}
for( ;; )
{
if( ( ulUIP_Events & uipETHERNET_RX_EVENT ) != 0UL )
{
/* Is there received data ready to be processed? */
uip_len = ( unsigned short ) ulEMACRead();
if( ( uip_len > 0 ) && ( uip_buf != NULL ) )
{
/* Standard uIP loop taken from the uIP manual. */
if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
{
uip_arp_ipin();
uip_input();
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if( uip_len > 0 )
{
uip_arp_out();
vEMACWrite();
}
}
else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
{
uip_arp_arpin();
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if( uip_len > 0 )
{
vEMACWrite();
}
}
}
else
{
ulUIP_Events &= ~uipETHERNET_RX_EVENT;
}
}
if( ( ulUIP_Events & uipPERIODIC_TIMER_EVENT ) != 0UL )
{
ulUIP_Events &= ~uipPERIODIC_TIMER_EVENT;
for( i = 0; i < UIP_CONNS; i++ )
{
uip_periodic( i );
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if( uip_len > 0 )
{
uip_arp_out();
vEMACWrite();
}
}
}
/* Call the ARP timer function every 10 seconds. */
if( ( ulUIP_Events & uipARP_TIMER_EVENT ) != 0 )
{
ulUIP_Events &= ~uipARP_TIMER_EVENT;
uip_arp_timer();
}
if( ulUIP_Events == pdFALSE )
{
xQueueReceive( xEMACEventQueue, &ulNewEvent, portMAX_DELAY );
ulUIP_Events |= ulNewEvent;
}
}
}
void vuIP_Task( void *pvParameters )
{
long i;
unsigned long ulNewEvent = 0UL, ulUIP_Events = 0UL;
unsigned short usPacketLength;
/* Just to prevent compiler warnings about the unused parameter. */
( void ) pvParameters;
/* Initialise the uIP stack, configuring for web server usage. */
prvInitialise_uIP();
/* Initialise the MAC and PHY. */
vEMACInit();
for( ;; )
{
/* Is there received data ready to be processed? */
usPacketLength = usEMACRead();
/* Statements to be executed if data has been received on the Ethernet. */
if( ( usPacketLength > 0U ) && ( uip_buf != NULL ) )
{
uip_len = usPacketLength;
if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
{
uip_arp_ipin();
uip_input();
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if( uip_len > 0 )
{
uip_arp_out();
vEMACWrite();
}
}
else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
{
uip_arp_arpin();
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if( uip_len > 0 )
{
vEMACWrite();
}
}
}
else
{
/* Clear the RX event latched in ulUIP_Events - if one was latched. */
ulUIP_Events &= ~uipETHERNET_RX_EVENT;
}
/* Statements to be executed if the TCP/IP period timer has expired. */
if( ( ulUIP_Events & uipPERIODIC_TIMER_EVENT ) != 0UL )
{
ulUIP_Events &= ~uipPERIODIC_TIMER_EVENT;
if( uip_buf != NULL )
{
for( i = 0; i < UIP_CONNS; i++ )
{
uip_periodic( i );
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if( uip_len > 0 )
{
uip_arp_out();
vEMACWrite();
}
}
}
}
/* Statements to be executed if the ARP timer has expired. */
if( ( ulUIP_Events & uipARP_TIMER_EVENT ) != 0 )
{
ulUIP_Events &= ~uipARP_TIMER_EVENT;
uip_arp_timer();
}
/* If all latched events have been cleared - block until another event
occurs. */
if( ulUIP_Events == pdFALSE )
{
xQueueReceive( xEMACEventQueue, &ulNewEvent, portMAX_DELAY );
ulUIP_Events |= ulNewEvent;
}
}
}
