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Add FreeRTOS-Plus directory.
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Richard Barry
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6798 changed files with 134949 additions and 19 deletions
307
FreeRTOS/Demo/lwIP_MCF5235_GCC/demo.c
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FreeRTOS/Demo/lwIP_MCF5235_GCC/demo.c
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/*
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FreeRTOS V4.6.1 - copyright (C) 2003-2006 Richard Barry.
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MCF5235 Port - Copyright (C) 2006 Christian Walter.
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This file is part of the FreeRTOS distribution.
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FreeRTOS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License** as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FreeRTOS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FreeRTOS; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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A special exception to the GPL can be applied should you wish to distribute
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a combined work that includes FreeRTOS, without being obliged to provide
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the source code for any proprietary components. See the licensing section
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of http://www.FreeRTOS.org for full details of how and when the exception
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can be applied.
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***************************************************************************
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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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***************************************************************************
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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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/* ------------------------ System includes ------------------------------- */
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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/* ------------------------ FreeRTOS includes ----------------------------- */
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#include "FreeRTOS.h"
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#include "task.h"
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/* ------------------------ LWIP includes --------------------------------- */
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#include "lwip/api.h"
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#include "lwip/tcpip.h"
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#include "lwip/memp.h"
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/* ------------------------ Project includes ------------------------------ */
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#include "mcf5xxx.h"
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#include "mcf523x.h"
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#include "serial.h"
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#include "web.h"
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#include "integer.h"
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#include "PollQ.h"
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#include "semtest.h"
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#include "BlockQ.h"
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#include "dynamic.h"
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#include "flop.h"
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/* ------------------------ Defines --------------------------------------- */
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#define mainCOM_TEST_BAUD_RATE ( ( unsigned long ) 38400 )
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/* Priorities for the demo application tasks. */
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#define mainLED_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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#define mainCOM_TEST_PRIORITY ( tskIDLE_PRIORITY + 2 )
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#define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 2 )
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#define mainCHECK_TASK_PRIORITY ( tskIDLE_PRIORITY + 4 )
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#define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )
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#define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )
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#define mainWEB_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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#define STACK_DEFAULT ( 1024 )
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/* Interval in which tasks are checked. */
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#define mainCHECK_PERIOD ( ( portTickType ) 2000 / portTICK_RATE_MS )
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/* Constants used by the vMemCheckTask() task. */
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#define mainCOUNT_INITIAL_VALUE ( ( unsigned long ) 0 )
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#define mainNO_TASK ( 0 )
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/* The size of the memory blocks allocated by the vMemCheckTask() task. */
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#define mainMEM_CHECK_SIZE_1 ( ( size_t ) 51 )
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#define mainMEM_CHECK_SIZE_2 ( ( size_t ) 52 )
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#define mainMEM_CHECK_SIZE_3 ( ( size_t ) 151 )
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/* ------------------------ Static variables ------------------------------ */
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xComPortHandle xSTDComPort = NULL;
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/* ------------------------ Static functions ------------------------------ */
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static portTASK_FUNCTION( vErrorChecks, pvParameters );
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static long prvCheckOtherTasksAreStillRunning( unsigned long
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ulMemCheckTaskCount );
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static portTASK_FUNCTION( vMemCheckTask, pvParameters );
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/* ------------------------ Implementation -------------------------------- */
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int
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main( int argc, char *argv[] )
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{
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asm volatile ( "move.w #0x2000, %sr\n\t" );
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xSTDComPort = xSerialPortInitMinimal( 38400, 8 );
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vlwIPInit( );
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/* Start the demo/test application tasks. */
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vStartIntegerMathTasks( tskIDLE_PRIORITY );
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vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
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//vStartMathTasks( tskIDLE_PRIORITY );
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vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
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vStartDynamicPriorityTasks( );
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vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
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/* Start the webserver. */
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( void )sys_thread_new( vBasicWEBServer, NULL, mainWEB_TASK_PRIORITY );
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/* Start the check task - which is defined in this file. */
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xTaskCreate( vErrorChecks, ( signed char * )"Check", 512, NULL,
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mainCHECK_TASK_PRIORITY, NULL );
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/* Now all the tasks have been started - start the scheduler. */
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vTaskStartScheduler( );
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/* Should never get here! */
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return 0;
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}
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static
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portTASK_FUNCTION( vErrorChecks, pvParameters )
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{
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unsigned long ulMemCheckTaskRunningCount;
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xTaskHandle xCreatedTask;
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/* The parameters are not used in this function. */
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( void )pvParameters;
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for( ;; )
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{
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ulMemCheckTaskRunningCount = mainCOUNT_INITIAL_VALUE;
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xCreatedTask = mainNO_TASK;
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if( xTaskCreate( vMemCheckTask, ( signed char * )"MEM",
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configMINIMAL_STACK_SIZE, ( void * )&ulMemCheckTaskRunningCount,
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tskIDLE_PRIORITY, &xCreatedTask ) != pdPASS )
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{
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xSerialPutChar( xSTDComPort, 'E', portMAX_DELAY );
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}
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/* Delay until it is time to execute again. */
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vTaskDelay( mainCHECK_PERIOD );
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/* Delete the dynamically created task. */
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if( xCreatedTask != mainNO_TASK )
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{
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vTaskDelete( xCreatedTask );
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}
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if( prvCheckOtherTasksAreStillRunning( ulMemCheckTaskRunningCount ) != pdPASS )
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{
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xSerialPutChar( xSTDComPort, 'E', portMAX_DELAY );
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}
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else
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{
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xSerialPutChar( xSTDComPort, '.', portMAX_DELAY );
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}
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}
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}
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static long
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prvCheckOtherTasksAreStillRunning( unsigned long ulMemCheckTaskCount )
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{
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long lReturn = ( long ) pdPASS;
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/* Check all the demo tasks (other than the flash tasks) to ensure
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* that they are all still running, and that none of them have detected
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* an error.
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*/
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if( xAreIntegerMathsTaskStillRunning( ) != pdTRUE )
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{
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lReturn = ( long ) pdFAIL;
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}
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if( xArePollingQueuesStillRunning( ) != pdTRUE )
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{
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lReturn = ( long ) pdFAIL;
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}
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if( xAreSemaphoreTasksStillRunning( ) != pdTRUE )
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{
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lReturn = ( long ) pdFAIL;
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}
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if( xAreDynamicPriorityTasksStillRunning( ) != pdTRUE )
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{
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lReturn = ( long ) pdFAIL;
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}
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if( xAreBlockingQueuesStillRunning( ) != pdTRUE )
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{
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lReturn = ( long ) pdFAIL;
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}
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if( ulMemCheckTaskCount == mainCOUNT_INITIAL_VALUE )
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{
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/* The vMemCheckTask did not increment the counter - it must
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* have failed.
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*/
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lReturn = ( long ) pdFAIL;
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}
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return lReturn;
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}
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static void
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vMemCheckTask( void *pvParameters )
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{
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unsigned long *pulMemCheckTaskRunningCounter;
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void *pvMem1, *pvMem2, *pvMem3;
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static long lErrorOccurred = pdFALSE;
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/* This task is dynamically created then deleted during each cycle of the
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vErrorChecks task to check the operation of the memory allocator. Each time
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the task is created memory is allocated for the stack and TCB. Each time
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the task is deleted this memory is returned to the heap. This task itself
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exercises the allocator by allocating and freeing blocks.
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The task executes at the idle priority so does not require a delay.
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pulMemCheckTaskRunningCounter is incremented each cycle to indicate to the
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vErrorChecks() task that this task is still executing without error. */
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pulMemCheckTaskRunningCounter = ( unsigned long * )pvParameters;
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for( ;; )
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{
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if( lErrorOccurred == pdFALSE )
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{
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/* We have never seen an error so increment the counter. */
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( *pulMemCheckTaskRunningCounter )++;
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}
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/* Allocate some memory - just to give the allocator some extra
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exercise. This has to be in a critical section to ensure the
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task does not get deleted while it has memory allocated. */
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vTaskSuspendAll( );
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{
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pvMem1 = pvPortMalloc( mainMEM_CHECK_SIZE_1 );
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if( pvMem1 == NULL )
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{
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lErrorOccurred = pdTRUE;
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}
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else
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{
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memset( pvMem1, 0xaa, mainMEM_CHECK_SIZE_1 );
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vPortFree( pvMem1 );
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}
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}
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xTaskResumeAll( );
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/* Again - with a different size block. */
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vTaskSuspendAll( );
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{
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pvMem2 = pvPortMalloc( mainMEM_CHECK_SIZE_2 );
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if( pvMem2 == NULL )
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{
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lErrorOccurred = pdTRUE;
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}
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else
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{
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memset( pvMem2, 0xaa, mainMEM_CHECK_SIZE_2 );
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vPortFree( pvMem2 );
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}
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}
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xTaskResumeAll( );
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/* Again - with a different size block. */
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vTaskSuspendAll( );
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{
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pvMem3 = pvPortMalloc( mainMEM_CHECK_SIZE_3 );
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if( pvMem3 == NULL )
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{
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lErrorOccurred = pdTRUE;
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}
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else
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{
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memset( pvMem3, 0xaa, mainMEM_CHECK_SIZE_3 );
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vPortFree( pvMem3 );
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}
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}
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xTaskResumeAll( );
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}
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}
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