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/*
* FreeRTOS V202104.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* http://www.FreeRTOS.org
* http://aws.amazon.com/freertos
*
* 1 tab == 4 spaces!
*/
/* Scheduler include files. */
#include "FreeRTOS.h"
#include "task.h"
/* Interface include files. */
#include "RegTests.h"
/* Parameters that are passed into the register check tasks solely for the
* purpose of ensuring parameters are passed into tasks correctly. */
#define REG_TEST_TASK_1_PARAMETER ( ( void * ) 0x12345678 )
#define REG_TEST_TASK_2_PARAMETER ( ( void * ) 0x87654321 )
/*-----------------------------------------------------------*/
/* Tasks that implement register tests. */
static void prvRegisterTest1Task( void *pvParameters );
static void prvRegisterTest2Task( void *pvParameters );
extern void vRegTest1Implementation( void );
extern void vRegTest2Implementation( void );
/* Flag that will be latched to pdTRUE should any unexpected behaviour be
detected in any of the tasks. */
static volatile BaseType_t xErrorDetected = pdFALSE;
/* Counters that are incremented on each cycle of a test. This is used to
detect a stalled task - a test that is no longer running. */
volatile uint32_t ulRegisterTest1Counter = 0;
volatile uint32_t ulRegisterTest2Counter = 0;
/*-----------------------------------------------------------*/
static void prvRegisterTest1Task( void *pvParameters )
{
/* Although the regtest task is written in assembler, its entry point is
* written in C for convenience of checking the task parameter is being
* passed in correctly. */
if( pvParameters == REG_TEST_TASK_1_PARAMETER )
{
/* Start the part of the test that is written in assembler. */
vRegTest1Implementation();
}
/* The following line will only execute if the task parameter is found to
* be incorrect. The check task will detect that the regtest loop counter
* is not being incremented and flag an error. */
vTaskDelete( NULL );
}
/*-----------------------------------------------------------*/
static void prvRegisterTest2Task( void *pvParameters )
{
/* Although the regtest task is written in assembler, its entry point is
* written in C for convenience of checking the task parameter is being
* passed in correctly. */
if( pvParameters == REG_TEST_TASK_2_PARAMETER )
{
/* Start the part of the test that is written in assembler. */
vRegTest2Implementation();
}
/* The following line will only execute if the task parameter is found to
* be incorrect. The check task will detect that the regtest loop counter
* is not being incremented and flag an error. */
vTaskDelete( NULL );
}
/*-----------------------------------------------------------*/
void vStartRegisterTasks( UBaseType_t uxPriority )
{
BaseType_t ret;
ret = xTaskCreate( prvRegisterTest1Task,
"RegTest1",
configMINIMAL_STACK_SIZE,
REG_TEST_TASK_1_PARAMETER,
uxPriority,
NULL );
configASSERT( ret == pdPASS );
ret = xTaskCreate( prvRegisterTest2Task,
"RegTest2",
configMINIMAL_STACK_SIZE,
REG_TEST_TASK_2_PARAMETER,
uxPriority,
NULL );
configASSERT( ret == pdPASS );
}
/*-----------------------------------------------------------*/
BaseType_t xAreRegisterTasksStillRunning( void )
{
static uint32_t ulLastRegisterTest1Counter = 0, ulLastRegisterTest2Counter = 0;
/* If the register test task is still running then we expect the loop
* counters to have incremented since this function was last called. */
if( ulLastRegisterTest1Counter == ulRegisterTest1Counter )
{
xErrorDetected = pdTRUE;
}
if( ulLastRegisterTest2Counter == ulRegisterTest2Counter )
{
xErrorDetected = pdTRUE;
}
ulLastRegisterTest1Counter = ulRegisterTest1Counter;
ulLastRegisterTest2Counter = ulRegisterTest2Counter;
/* Errors detected in the task itself will have latched xErrorDetected
* to true. */
return ( BaseType_t ) !xErrorDetected;
}
/*-----------------------------------------------------------*/
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