mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
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226 lines
6.6 KiB
C
226 lines
6.6 KiB
C
/*
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FreeRTOS.org V5.3.1 - Copyright (C) 2003-2009 Richard Barry.
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This file is part of the FreeRTOS.org distribution.
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FreeRTOS.org is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License (version 2) as published
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by the Free Software Foundation and modified by the FreeRTOS exception.
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**NOTE** The exception to the GPL is included to allow you to distribute a
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combined work that includes FreeRTOS.org without being obliged to provide
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the source code for any proprietary components. Alternative commercial
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license and support terms are also available upon request. See the
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licensing section of http://www.FreeRTOS.org for full details.
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FreeRTOS.org is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along
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with FreeRTOS.org; if not, write to the Free Software Foundation, Inc., 59
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Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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***************************************************************************
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* *
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* Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
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* *
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* This is a concise, step by step, 'hands on' guide that describes both *
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* general multitasking concepts and FreeRTOS specifics. It presents and *
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* explains numerous examples that are written using the FreeRTOS API. *
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* Full source code for all the examples is provided in an accompanying *
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* .zip file. *
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* *
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***************************************************************************
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1 tab == 4 spaces!
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Please ensure to read the configuration and relevant port sections of the
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online documentation.
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http://www.FreeRTOS.org - Documentation, latest information, license and
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contact details.
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http://www.SafeRTOS.com - A version that is certified for use in safety
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critical systems.
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http://www.OpenRTOS.com - Commercial support, development, porting,
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licensing and training services.
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*/
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/* Standard includes. */
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#include <string.h>
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/* Scheduler includes. */
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#include "FreeRTOS.h"
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#include "task.h"
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#include "semphr.h"
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/* uip includes. */
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#include "uip.h"
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#include "uip_arp.h"
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#include "httpd.h"
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#include "timer.h"
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#include "clock-arch.h"
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#include "timer.h"
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/* Demo includes. */
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#include "FEC.h"
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#include "partest.h"
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/*-----------------------------------------------------------*/
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/* Shortcut to the header within the Rx buffer. */
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#define xHeader ((struct uip_eth_hdr *) &uip_buf[ 0 ])
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/*-----------------------------------------------------------*/
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/*
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* Port functions required by the uIP stack.
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*/
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clock_time_t clock_time( void );
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/*-----------------------------------------------------------*/
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/* The semaphore used by the ISR to wake the uIP task. */
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extern xSemaphoreHandle xFECSemaphore;
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/*-----------------------------------------------------------*/
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clock_time_t clock_time( void )
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{
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return xTaskGetTickCount();
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}
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void vuIP_Task( void *pvParameters )
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{
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portBASE_TYPE i;
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uip_ipaddr_t xIPAddr;
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struct timer periodic_timer, arp_timer;
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extern void ( vEMAC_ISR )( void );
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/* Just to get rid of the compiler warning. */
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( void ) pvParameters;
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/* Enable/Reset the Ethernet Controller */
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/* Create the semaphore used by the ISR to wake this task. */
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vSemaphoreCreateBinary( xFECSemaphore );
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/* Initialise the uIP stack. */
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timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );
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timer_set( &arp_timer, configTICK_RATE_HZ * 10 );
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uip_init();
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uip_ipaddr( xIPAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );
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uip_sethostaddr( xIPAddr );
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uip_ipaddr( xIPAddr, configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 );
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uip_setnetmask( xIPAddr );
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httpd_init();
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vInitFEC();
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for( ;; )
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{
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/* Is there received data ready to be processed? */
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uip_len = ( unsigned short ) ulFECRx();
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if( ( uip_len > 0 ) && ( uip_buf != NULL ) )
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{
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/* Standard uIP loop taken from the uIP manual. */
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if( xHeader->type == htons( UIP_ETHTYPE_IP ) )
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{
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uip_arp_ipin();
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uip_input();
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/* If the above function invocation resulted in data that
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should be sent out on the network, the global variable
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uip_len is set to a value > 0. */
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if( uip_len > 0 )
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{
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uip_arp_out();
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vFECTx();
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}
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}
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else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )
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{
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uip_arp_arpin();
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/* If the above function invocation resulted in data that
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should be sent out on the network, the global variable
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uip_len is set to a value > 0. */
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if( uip_len > 0 )
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{
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vFECTx();
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}
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}
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}
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else
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{
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if( ( timer_expired( &periodic_timer ) ) && ( uip_buf != NULL ) )
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{
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timer_reset( &periodic_timer );
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for( i = 0; i < UIP_CONNS; i++ )
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{
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uip_periodic( i );
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/* If the above function invocation resulted in data that
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should be sent out on the network, the global variable
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uip_len is set to a value > 0. */
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if( uip_len > 0 )
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{
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uip_arp_out();
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vFECTx();
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}
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}
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/* Call the ARP timer function every 10 seconds. */
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if( timer_expired( &arp_timer ) )
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{
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timer_reset( &arp_timer );
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uip_arp_timer();
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}
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}
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else
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{
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/* We did not receive a packet, and there was no periodic
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processing to perform. Block for a fixed period. If a packet
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is received during this period we will be woken by the ISR
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giving us the Semaphore. */
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xSemaphoreTake( xFECSemaphore, configTICK_RATE_HZ / 2 );
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}
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}
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}
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}
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/*-----------------------------------------------------------*/
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void vApplicationProcessFormInput( portCHAR *pcInputString, portBASE_TYPE xInputLength )
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{
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char *c;
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/* Just to get rid of the compiler warning - other ports/demos use the parameter. */
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( void ) xInputLength;
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/* Process the form input sent by the IO page of the served HTML. */
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c = strstr( pcInputString, "?" );
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if( c )
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{
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/* Turn LED's on or off in accordance with the check box status. */
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if( strstr( c, "LED3=1" ) != NULL )
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{
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/* Turn LED 3 on. */
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vParTestSetLED( 3, 1 );
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}
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else
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{
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/* Turn LED 3 off. */
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vParTestSetLED( 3, 0 );
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}
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}
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}
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