Subversion Repositories openrisc_2011-10-31

/*

    FreeRTOS V6.1.1 - Copyright (C) 2011 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 books - available as PDF or paperback  *

    *                                                                         *

    *        "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.

*/

/*

 *******************************************************************************

 * -NOTE- The Win32 port is a simulation (or is that emulation?) only!  Do not

 * expect to get real time behaviour from the Win32 port or this demo

 * application.  It is provided as a convenient development and demonstration

 * test bed only.  This was tested using Windows XP on a dual core laptop.

 *

 * - READ THE WEB DOCUMENTATION FOR THIS PORT FOR MORE INFORMATION ON USING IT -

 *******************************************************************************

 *

 * main() creates all the demo application tasks, then starts the scheduler.

 * The web documentation provides more details of the standard demo application

 * tasks, which provide no particular functionality but do provide a good

 * example of how to use the FreeRTOS API.

 *

 * In addition to the standard demo tasks, the following tasks and tests are

 * defined and/or created within this file:

 *

 * "Check" task - This only executes every five seconds but has a high priority

 * to ensure it gets processor time.  Its main function is to check that all the

 * standard demo tasks are still operational.  While no errors have been

 * discovered the check task will print out "OK" and the current simulated tick

 * time.  If an error is discovered in the execution of a task then the check

 * task will print out an appropriate error message.

 *

 */

/* Standard includes. */

#include <stdio.h>

/* Kernel includes. */

#include <FreeRTOS.h>

#include "task.h"

#include "queue.h"

/* Standard demo includes. */

#include "BlockQ.h"

#include "integer.h"

#include "semtest.h"

#include "PollQ.h"

#include "GenQTest.h"

#include "QPeek.h"

#include "recmutex.h"

#include "flop.h"

/* Priorities at which the tasks are created. */

#define mainCHECK_TASK_PRIORITY         ( configMAX_PRIORITIES - 1 )

#define mainQUEUE_POLL_PRIORITY         ( tskIDLE_PRIORITY + 1 )

#define mainSEM_TEST_PRIORITY           ( tskIDLE_PRIORITY + 1 )

#define mainBLOCK_Q_PRIORITY            ( tskIDLE_PRIORITY + 2 )

#define mainCREATOR_TASK_PRIORITY   ( tskIDLE_PRIORITY + 3 )

#define mainFLASH_TASK_PRIORITY         ( tskIDLE_PRIORITY + 1 )

#define mainuIP_TASK_PRIORITY           ( tskIDLE_PRIORITY + 2 )

#define mainINTEGER_TASK_PRIORITY   ( tskIDLE_PRIORITY )

#define mainGEN_QUEUE_TASK_PRIORITY     ( tskIDLE_PRIORITY )

#define mainFLOP_TASK_PRIORITY          ( tskIDLE_PRIORITY )

/* Task function prototypes. */

static void prvCheckTask( void *pvParameters );

/*-----------------------------------------------------------*/

int main( void )

{

        /* Start the check task as described at the top of this file. */

        xTaskCreate( prvCheckTask, ( signed char * ) "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );

        /* Create the standard demo tasks. */

        vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );

        vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );

        vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );

        vStartIntegerMathTasks( mainINTEGER_TASK_PRIORITY );

        vStartGenericQueueTasks( mainGEN_QUEUE_TASK_PRIORITY );

        vStartQueuePeekTasks();

        vStartMathTasks( mainFLOP_TASK_PRIORITY );

        vStartRecursiveMutexTasks();

        /* Start the scheduler itself. */

        vTaskStartScheduler();

    /* Should never get here unless there was not enough heap space to create

        the idle and other system tasks. */

    return 0;

}

/*-----------------------------------------------------------*/

static void prvCheckTask( void *pvParameters )

{

portTickType xNextWakeTime;

const portTickType xCycleFrequency = 5000 / portTICK_RATE_MS;

char *pcStatusMessage = "OK";

        /* Just to remove compiler warning. */

        ( void ) pvParameters;

        /* Initialise xNextWakeTime - this only needs to be done once. */

        xNextWakeTime = xTaskGetTickCount();

        for( ;; )

        {

                /* Place this task in the blocked state until it is time to run again. */

                vTaskDelayUntil( &xNextWakeTime, xCycleFrequency );

                /* Check the standard demo tasks are running without error. */

            if( xAreIntegerMathsTaskStillRunning() != pdTRUE )

            {

                        pcStatusMessage = "Error: IntMath";

            }

                else if( xAreGenericQueueTasksStillRunning() != pdTRUE )

                {

                        pcStatusMessage = "Error: GenQueue";

                }

                else if( xAreQueuePeekTasksStillRunning() != pdTRUE )

                {

                        pcStatusMessage = "Error: QueuePeek";

                }

                else if( xAreBlockingQueuesStillRunning() != pdTRUE )

                {

                        pcStatusMessage = "Error: BlockQueue";

                }

            else if( xAreSemaphoreTasksStillRunning() != pdTRUE )

            {

                        pcStatusMessage = "Error: SemTest";

            }

            else if( xArePollingQueuesStillRunning() != pdTRUE )

            {

                        pcStatusMessage = "Error: PollQueue";

            }

                else if( xAreMathsTaskStillRunning() != pdPASS )

                {

                        pcStatusMessage = "Error: Flop";

                }

            else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )

            {

                        pcStatusMessage = "Error: RecMutex";

                }

                /* This is the only task that uses stdout so its ok to call printf()

                directly. */

                printf( "%s - %d\r\n", pcStatusMessage, ( int ) xTaskGetTickCount() );

                fflush( stdout ); /* Required by Eclipse console. */

        }

}

/*-----------------------------------------------------------*/

void vApplicationIdleHook( void )

{

const unsigned long ulMSToSleep = 5;

        /* Sleep to reduce CPU load, but don't sleep indefinitely in case there are

        tasks waiting to be terminated by the idle task. */

        Sleep( ulMSToSleep );

}

/*-----------------------------------------------------------*/

void vApplicationMallocFailedHook( void )

{

        /* Can be implemented if required, but probably not required in this

        environment and running this demo. */

}

/*-----------------------------------------------------------*/

void vApplicationStackOverflowHook( void )

{

        /* Can be implemented if required, but not required in this

        environment and running this demo. */

}