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.

*/

/* Environment includes. */

#include <targets/LPC2368.h>

/* Scheduler includes. */

#include "FreeRTOS.h"

#include "task.h"

#include "queue.h"

#include "semphr.h"

/* Demo app includes. */

#include "BlockQ.h"

#include "death.h"

#include "integer.h"

#include "blocktim.h"

#include "portlcd.h"

#include "flash.h"

#include "partest.h"

#include "semtest.h"

#include "PollQ.h"

/* Demo application definitions. */

#define mainQUEUE_SIZE                                          ( 3 )

#define mainCHECK_DELAY                                         ( ( portTickType ) 5000 / portTICK_RATE_MS )

#define mainBASIC_WEB_STACK_SIZE            ( configMINIMAL_STACK_SIZE * 2 )

/* Task priorities. */

#define mainQUEUE_POLL_PRIORITY                         ( tskIDLE_PRIORITY + 2 )

#define mainCHECK_TASK_PRIORITY                         ( tskIDLE_PRIORITY + 3 )

#define mainSEM_TEST_PRIORITY                           ( tskIDLE_PRIORITY + 1 )

#define mainBLOCK_Q_PRIORITY                            ( tskIDLE_PRIORITY + 2 )

#define mainFLASH_PRIORITY                  ( tskIDLE_PRIORITY + 2 )

#define mainCREATOR_TASK_PRIORITY           ( tskIDLE_PRIORITY + 3 )

#define mainINTEGER_TASK_PRIORITY           ( tskIDLE_PRIORITY )

/*

 * Checks the status of all the demo tasks then prints a message to the

 * CrossStudio terminal IO windows.  The message will be either PASS or FAIL

 * depending on the status of the demo applications tasks.  A FAIL status will

 * be latched.

 *

 * Messages are not written directly to the terminal, but passed to vPrintTask

 * via a queue.

 */

static void vCheckTask( void *pvParameters );

/*

 * The task that handles the uIP stack.  All TCP/IP processing is performed in

 * this task.

 */

extern void vuIP_Task( void *pvParameters );

/*

 * The LCD is written two by more than one task so is controlled by a

 * 'gatekeeper' task.  This is the only task that is actually permitted to

 * access the LCD directly.  Other tasks wanting to display a message send

 * the message to the gatekeeper.

 */

static void vLCDTask( void *pvParameters );

/* The queue used to send messages to the LCD task. */

xQueueHandle xLCDQueue;

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

int main (void)

{

        /* Setup the led's on the MCB2300 board */

        vParTestInitialise();

        /* Create the queue used by the LCD task.  Messages for display on the LCD

        are received via this queue. */

        xLCDQueue = xQueueCreate( mainQUEUE_SIZE, sizeof( xLCDMessage ) );

        /* Create the lwIP task.  This uses the lwIP RTOS abstraction layer.*/

    xTaskCreate( vuIP_Task, ( signed char * ) "uIP", mainBASIC_WEB_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY - 1, NULL );

        /* Start the standard demo tasks - these serve no useful purpose other than

        to demonstrate the FreeRTOS API being used and to test the port. */

        vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );

    vCreateBlockTimeTasks();

    vStartLEDFlashTasks( mainFLASH_PRIORITY );

    vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );

    vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );

    vStartIntegerMathTasks( mainINTEGER_TASK_PRIORITY );

        /* Start the tasks defined within this file/specific to this demo. */

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

        xTaskCreate( vLCDTask, ( signed char * ) "LCD", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY - 1, NULL );

        /* The suicide tasks must be created last as they need to know how many

        tasks were running prior to their creation in order to ascertain whether

        or not the correct/expected number of tasks are running at any given time. */

    vCreateSuicidalTasks( mainCREATOR_TASK_PRIORITY );

        /* Start the scheduler. */

        vTaskStartScheduler();

    /* Will only get here if there was insufficient memory to create the idle

    task. */

        return 0;

}

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

static void vCheckTask( void *pvParameters )

{

portBASE_TYPE xErrorOccurred = pdFALSE;

portTickType xLastExecutionTime;

unsigned portBASE_TYPE uxColumn = 0;

xLCDMessage xMessage;

        xLastExecutionTime = xTaskGetTickCount();

        xMessage.xColumn = 0;

        xMessage.pcMessage = "PASS";

    for( ;; )

        {

                /* Perform this check every mainCHECK_DELAY milliseconds. */

                vTaskDelayUntil( &xLastExecutionTime, mainCHECK_DELAY );

                /* Has an error been found in any task? */

        if( xAreBlockingQueuesStillRunning() != pdTRUE )

                {

                        xErrorOccurred = pdTRUE;

                }

                if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )

                {

                        xErrorOccurred = pdTRUE;

                }

        if( xAreSemaphoreTasksStillRunning() != pdTRUE )

        {

            xErrorOccurred = pdTRUE;

        }

        if( xArePollingQueuesStillRunning() != pdTRUE )

        {

            xErrorOccurred = pdTRUE;

        }

        if( xIsCreateTaskStillRunning() != pdTRUE )

        {

            xErrorOccurred = pdTRUE;

        }

        if( xAreIntegerMathsTaskStillRunning() != pdTRUE )

        {

            xErrorOccurred = pdTRUE;

        }

        LCD_cls();

        xMessage.xColumn++;

        LCD_gotoxy( ( uxColumn & 0x07 ) + 1, ( uxColumn & 0x01 ) + 1 );

        if( xErrorOccurred == pdTRUE )

        {

            xMessage.pcMessage = "FAIL";

        }

                /* Send the message to the LCD gatekeeper for display. */

                xQueueSend( xLCDQueue, &xMessage, portMAX_DELAY );

        }

}

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

void vLCDTask( void *pvParameters )

{

xLCDMessage xMessage;

        /* Initialise the LCD and display a startup message. */

        LCD_init();

        LCD_cur_off();

    LCD_cls();

    LCD_gotoxy( 1, 1 );

    LCD_puts( ( signed char * ) "www.FreeRTOS.org" );

        for( ;; )

        {

                /* Wait for a message to arrive that requires displaying. */

                while( xQueueReceive( xLCDQueue, &xMessage, portMAX_DELAY ) != pdPASS );

                /* Display the message.  Print each message to a different position. */

                LCD_cls();

                LCD_gotoxy( ( xMessage.xColumn & 0x07 ) + 1, ( xMessage.xColumn & 0x01 ) + 1 );

                LCD_puts( xMessage.pcMessage );

        }

}

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

/* Keep the compiler quiet. */

#include <stdio.h>

int __putchar( int c )

{

    return EOF;

}