| /* | |
| FreeRTOS V6.0.4 - Copyright (C) 2010 Real Time Engineers Ltd. | |
| *************************************************************************** | |
| * * | |
| * If you are: * | |
| * * | |
| * + New to FreeRTOS, * | |
| * + Wanting to learn FreeRTOS or multitasking in general quickly * | |
| * + Looking for basic training, * | |
| * + Wanting to improve your FreeRTOS skills and productivity * | |
| * * | |
| * then take a look at the FreeRTOS eBook * | |
| * * | |
| * "Using the FreeRTOS Real Time Kernel - a Practical Guide" * | |
| * http://www.FreeRTOS.org/Documentation * | |
| * * | |
| * A pdf reference manual is also available. Both are usually delivered * | |
| * to your inbox within 20 minutes to two hours when purchased between 8am * | |
| * and 8pm GMT (although please allow up to 24 hours in case of * | |
| * exceptional circumstances). Thank you for your support! * | |
| * * | |
| *************************************************************************** | |
| 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 exception 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. See the GNU General Public License for | |
| more details. You should have received a copy of the GNU General Public | |
| License and the FreeRTOS license exception along with FreeRTOS; if not it | |
| can be viewed here: http://www.freertos.org/a00114.html and also obtained | |
| by writing to Richard Barry, contact details for whom are available on the | |
| FreeRTOS WEB site. | |
| 1 tab == 4 spaces! | |
| http://www.FreeRTOS.org - Documentation, latest information, license and | |
| contact details. | |
| http://www.SafeRTOS.com - A version that is certified for use in safety | |
| critical systems. | |
| http://www.OpenRTOS.com - Commercial support, development, porting, | |
| licensing and training services. | |
| */ | |
| /* 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 ); | |
| } | |
| } | |
| } | |
| } | |
| /*-----------------------------------------------------------*/ | |