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/*
FreeRTOS.org V5.1.2 - Copyright (C) 2003-2009 Richard Barry.
This file is part of the FreeRTOS.org distribution.
FreeRTOS.org is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FreeRTOS.org is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FreeRTOS.org; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes FreeRTOS.org, without being obliged to provide
the source code for any proprietary components. See the licensing section
of http://www.FreeRTOS.org for full details of how and when the exception
can be applied.
***************************************************************************
See http://www.FreeRTOS.org for documentation, latest information, license
and contact details. Please ensure to read the configuration and relevant
port sections of the online documentation.
***************************************************************************
*/
/* Task that controls the uIP TCP/IP stack. */
/* Standard includes. */
#include <string.h>
/* Scheduler includes. */
#include "FreeRTOS.h"
#include "task.h"
#include "semphr.h"
/* uip includes. */
#include "uip.h"
#include "uip_arp.h"
#include "httpd.h"
#include "timer.h"
#include "clock-arch.h"
/* Demo includes. */
#include "FEC.h"
#include "partest.h"
/*-----------------------------------------------------------*/
/* Shortcut to the header within the Rx buffer. */
#define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
/*-----------------------------------------------------------*/
/*
* Port functions required by the uIP stack.
*/
void clock_init( void );
clock_time_t clock_time( void );
extern void timer_set(struct timer *t, clock_time_t interval);
extern int timer_expired(struct timer *t);
extern void timer_reset(struct timer *t);
/*-----------------------------------------------------------*/
/* The semaphore used by the ISR to wake the uIP task. */
extern xSemaphoreHandle xFECSemaphore;
/*-----------------------------------------------------------*/
void clock_init(void)
{
/* This is done when the scheduler starts. */
}
/*-----------------------------------------------------------*/
/* Define clock functions here to avoid header file name clash between uIP
and the Luminary Micro driver library. */
clock_time_t clock_time( void )
{
return xTaskGetTickCount();
}
/*-----------------------------------------------------------*/
void vuIP_Task( void *pvParameters )
{
portBASE_TYPE i;
uip_ipaddr_t xIPAddr;
struct timer periodic_timer, arp_timer;
/* To prevent compiler warnings. */
( void ) pvParameters;
/* Initialise the uIP stack. */
timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
uip_init();
uip_ipaddr( xIPAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );
uip_sethostaddr( xIPAddr );
/* Initialise the WEB server. */
httpd_init();
/* Initialise the Ethernet controller peripheral. */
vFECInit();
for( ;; )
{
/* Is there received data ready to be processed? */
uip_len = usFECGetRxedData();
if( uip_len > 0 )
{
/* 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();
vFECSendData();
}
else
{
/* If we are not sending data then let the FEC driver know
the buffer is no longer required. */
vFECRxProcessingCompleted();
}
}
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 )
{
vFECSendData();
}
else
{
/* If we are not sending data then let the FEC driver know
the buffer is no longer required. */
vFECRxProcessingCompleted();
}
}
else
{
/* If we are not sending data then let the FEC driver know
the buffer is no longer required. */
vFECRxProcessingCompleted();
}
}
else
{
if( timer_expired( &periodic_timer ) )
{
timer_reset( &periodic_timer );
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();
vFECSendData();
}
}
/* Call the ARP timer function every 10 seconds. */
if( timer_expired( &arp_timer ) )
{
timer_reset( &arp_timer );
uip_arp_timer();
}
}
else
{
/* We did not receive a packet, and there was no periodic
processing to perform. Block for a fixed period. If a packet
is received during this period we will be woken by the ISR
giving us the Semaphore. */
xSemaphoreTake( xFECSemaphore, configTICK_RATE_HZ / 2 );
}
}
}
}
/*-----------------------------------------------------------*/
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