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authorRichard Barry <ribarry@amazon.com>2012-08-11 21:34:11 +0000
committerRichard Barry <ribarry@amazon.com>2012-08-11 21:34:11 +0000
commitf508a5f65335174a1d45895ca515e669901df398 (patch)
treec2ef3f908508343c26551949d5f947009cda3291 /FreeRTOS/Demo/CORTEX_STM32F107_GCC_Rowley/webserver/uIP_Task.c
parent7bd5f21ad5611e9b61ba1491a17f9111913e4b0c (diff)
downloadfreertos-git-f508a5f65335174a1d45895ca515e669901df398.tar.gz
Add FreeRTOS-Plus directory.
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+/*
+ 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 <string.h>
+
+/* 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 );
+ }
+}
+