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/*
FreeRTOS V8.1.0 - Copyright (C) 2014 Real Time Engineers Ltd.
All rights reserved
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
***************************************************************************
* *
* FreeRTOS provides completely free yet professionally developed, *
* robust, strictly quality controlled, supported, and cross *
* platform software that has become a de facto standard. *
* *
* Help yourself get started quickly and support the FreeRTOS *
* project by purchasing a FreeRTOS tutorial book, reference *
* manual, or both from: http://www.FreeRTOS.org/Documentation *
* *
* Thank you! *
* *
***************************************************************************
This file is part of the FreeRTOS distribution.
FreeRTOS is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License (version 2) as published by the
Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
>>! NOTE: The modification to the GPL is included to allow you to !<<
>>! distribute a combined work that includes FreeRTOS without being !<<
>>! obliged to provide the source code for proprietary components !<<
>>! outside of the FreeRTOS kernel. !<<
FreeRTOS 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. Full license text is available from the following
link: http://www.freertos.org/a00114.html
1 tab == 4 spaces!
***************************************************************************
* *
* Having a problem? Start by reading the FAQ "My application does *
* not run, what could be wrong?" *
* *
* http://www.FreeRTOS.org/FAQHelp.html *
* *
***************************************************************************
http://www.FreeRTOS.org - Documentation, books, training, latest versions,
license and Real Time Engineers Ltd. contact details.
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
compatible FAT file system, and our tiny thread aware UDP/IP stack.
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
licenses offer ticketed support, indemnification and middleware.
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
engineered and independently SIL3 certified version for use in safety and
mission critical applications that require provable dependability.
1 tab == 4 spaces!
*/
/* 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 "EthDev_LPC17xx.h"
#include "EthDev.h"
#include "ParTest.h"
/*-----------------------------------------------------------*/
/* How long to wait before attempting to connect the MAC again. */
#define uipINIT_WAIT ( 100 / portTICK_PERIOD_MS )
/* Shortcut to the header within the Rx buffer. */
#define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
/* Standard constant. */
#define uipTOTAL_FRAME_HEADER_SIZE 54
/*-----------------------------------------------------------*/
/*
* Setup the MAC address in the MAC itself, and in the uIP stack.
*/
static void prvSetMACAddress( void );
/*
* Port functions required by the uIP stack.
*/
void clock_init( void );
clock_time_t clock_time( void );
/*-----------------------------------------------------------*/
/* The semaphore used by the ISR to wake the uIP task. */
SemaphoreHandle_t xEMACSemaphore = NULL;
/*-----------------------------------------------------------*/
void clock_init(void)
{
/* This is done when the scheduler starts. */
}
/*-----------------------------------------------------------*/
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;
extern void ( vEMAC_ISR_Wrapper )( void );
( 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 );
uip_ipaddr( xIPAddr, configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 );
uip_setnetmask( xIPAddr );
httpd_init();
/* Create the semaphore used to wake the uIP task. */
vSemaphoreCreateBinary( xEMACSemaphore );
/* Initialise the MAC. */
while( lEMACInit() != pdPASS )
{
vTaskDelay( uipINIT_WAIT );
}
portENTER_CRITICAL();
{
EMAC->IntEnable = ( INT_RX_DONE | INT_TX_DONE );
/* Set the interrupt priority to the max permissible to cause some
interrupt nesting. */
NVIC_SetPriority( ENET_IRQn, configEMAC_INTERRUPT_PRIORITY );
/* Enable the interrupt. */
NVIC_EnableIRQ( ENET_IRQn );
prvSetMACAddress();
}
portEXIT_CRITICAL();
for( ;; )
{
/* Is there received data ready to be processed? */
uip_len = ulGetEMACRxData();
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();
vSendEMACTxData( uip_len );
}
}
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 )
{
vSendEMACTxData( uip_len );
}
}
}
else
{
if( timer_expired( &periodic_timer ) && ( uip_buf != NULL ) )
{
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();
vSendEMACTxData( uip_len );
}
}
/* 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( xEMACSemaphore, configTICK_RATE_HZ / 2 );
}
}
}
}
/*-----------------------------------------------------------*/
static void prvSetMACAddress( void )
{
struct uip_eth_addr xAddr;
/* Configure the MAC address in the uIP stack. */
xAddr.addr[ 0 ] = configMAC_ADDR0;
xAddr.addr[ 1 ] = configMAC_ADDR1;
xAddr.addr[ 2 ] = configMAC_ADDR2;
xAddr.addr[ 3 ] = configMAC_ADDR3;
xAddr.addr[ 4 ] = configMAC_ADDR4;
xAddr.addr[ 5 ] = configMAC_ADDR5;
uip_setethaddr( xAddr );
}
/*-----------------------------------------------------------*/
void vApplicationProcessFormInput( char *pcInputString )
{
char *c;
extern void vParTestSetLEDState( long lState );
/* Process the form input sent by the IO page of the served HTML. */
c = strstr( pcInputString, "?" );
if( c )
{
/* Turn the FIO1 LED's on or off in accordance with the check box status. */
if( strstr( c, "LED0=1" ) != NULL )
{
vParTestSetLEDState( pdTRUE );
}
else
{
vParTestSetLEDState( pdFALSE );
}
}
}
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