/* FreeRTOS V7.5.2 - Copyright (C) 2013 Real Time Engineers Ltd. 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 /* Scheduler includes. */ #include "FreeRTOS.h" #include "task.h" #include "semphr.h" /* uip includes. */ #include "net/uip.h" #include "net/uip_arp.h" #include "apps/httpd/httpd.h" #include "sys/timer.h" #include "net/clock-arch.h" /* Demo includes. */ #include "ParTest.h" /* Hardware includes. */ #include "hwEthernet.h" /*-----------------------------------------------------------*/ /* How long to wait before attempting to connect the MAC again. */ #define uipINIT_WAIT ( 100 / portTICK_RATE_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. */ xSemaphoreHandle 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 ); prvSetMACAddress(); httpd_init(); /* Create the semaphore used to wake the uIP task. */ vSemaphoreCreateBinary( xEMACSemaphore ); /* Initialise the MAC. */ vInitEmac(); while( lEMACWaitForLink() != pdPASS ) { vTaskDelay( uipINIT_WAIT ); } for( ;; ) { /* 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 { 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(); vEMACWrite(); } } /* 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; /* 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 ) { /* Turn LED 4 on. */ vParTestSetLED( 4, 1 ); } else { /* Turn LED 4 off. */ vParTestSetLED( 4, 0 ); } } }