From f508a5f65335174a1d45895ca515e669901df398 Mon Sep 17 00:00:00 2001 From: Richard Barry Date: Sat, 11 Aug 2012 21:34:11 +0000 Subject: Add FreeRTOS-Plus directory. --- .../webserver/uIP_Task.c | 301 +++++++++++++++++++++ 1 file changed, 301 insertions(+) create mode 100644 FreeRTOS/Demo/CORTEX_STM32F107_GCC_Rowley/webserver/uIP_Task.c (limited to 'FreeRTOS/Demo/CORTEX_STM32F107_GCC_Rowley/webserver/uIP_Task.c') diff --git a/FreeRTOS/Demo/CORTEX_STM32F107_GCC_Rowley/webserver/uIP_Task.c b/FreeRTOS/Demo/CORTEX_STM32F107_GCC_Rowley/webserver/uIP_Task.c new file mode 100644 index 000000000..e1b80c93c --- /dev/null +++ b/FreeRTOS/Demo/CORTEX_STM32F107_GCC_Rowley/webserver/uIP_Task.c @@ -0,0 +1,301 @@ +/* + FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd. + + + *************************************************************************** + * * + * FreeRTOS tutorial books are available in pdf and paperback. * + * Complete, revised, and edited pdf reference manuals are also * + * available. * + * * + * Purchasing FreeRTOS documentation will not only help you, by * + * ensuring you get running as quickly as possible and with an * + * in-depth knowledge of how to use FreeRTOS, it will also help * + * the FreeRTOS project to continue with its mission of providing * + * professional grade, cross platform, de facto standard solutions * + * for microcontrollers - completely free of charge! * + * * + * >>> See http://www.FreeRTOS.org/Documentation for details. <<< * + * * + * Thank you for using FreeRTOS, and 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 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. 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! + + *************************************************************************** + * * + * 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, training, latest information, + license and contact details. + + http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, + including FreeRTOS+Trace - an indispensable productivity tool. + + Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell + the code with commercial support, indemnification, and middleware, under + the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also + provide a safety engineered and independently SIL3 certified version under + the SafeRTOS brand: http://www.SafeRTOS.com. +*/ + +/* Standard includes. */ +#include + +/* Scheduler includes. */ +#include "FreeRTOS.h" +#include "task.h" +#include "semphr.h" + +/* Demo includes. */ +#include "emac.h" +#include "partest.h" + +/* uip includes. */ +#include "uip.h" +#include "uip_arp.h" +#include "httpd.h" +#include "timer.h" +#include "clock-arch.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; + +/* The buffer used by the uIP stack. In this case the pointer is used to +point to one of the Rx buffers. */ +unsigned char *uip_buf = 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; + + ( void ) pvParameters; + + /* Create the semaphore used by the ISR to wake this task. */ + vSemaphoreCreateBinary( xEMACSemaphore ); + + /* 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(); + + /* Initialise the MAC. */ + while( xEthInitialise() != pdPASS ) + { + vTaskDelay( uipINIT_WAIT ); + } + + prvSetMACAddress(); + + for( ;; ) + { + /* Is there received data ready to be processed? */ + uip_len = usGetMACRxData(); + + 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(); + vSendMACData( 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 ) + { + vSendMACData( 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(); + vSendMACData( 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, *pcText; +static char cMessageForDisplay[ 32 ]; +static const char *pcMessage = cMessageForDisplay; +extern xQueueHandle xLCDQueue; + + /* Process the form input sent by the IO page of the served HTML. */ + + c = strstr( pcInputString, "?" ); + if( c ) + { + /* Turn LED's on or off in accordance with the check box status. */ + if( strstr( c, "LED0=1" ) != NULL ) + { + /* Set LED4. */ + vParTestSetLED( 3, 1 ); + } + else + { + /* Clear LED4. */ + vParTestSetLED( 3, 0 ); + } + + /* Find the start of the text to be displayed on the LCD. */ + pcText = strstr( c, "LCD=" ); + pcText += strlen( "LCD=" ); + + /* Terminate the file name for further processing within uIP. */ + *c = 0x00; + + /* Terminate the LCD string. */ + c = strstr( pcText, " " ); + if( c != NULL ) + { + *c = 0x00; + } + + /* Add required spaces. */ + while( ( c = strstr( pcText, "+" ) ) != NULL ) + { + *c = ' '; + } + + /* Write the message to the LCD. */ + strcpy( cMessageForDisplay, pcText ); + xQueueSend( xLCDQueue, &pcMessage, portMAX_DELAY ); + } +} + -- cgit v1.2.1