/* | |
FreeRTOS V8.2.3 - Copyright (C) 2015 Real Time Engineers Ltd. | |
All rights reserved | |
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. | |
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. Full license text is available on the following | |
link: http://www.freertos.org/a00114.html | |
*************************************************************************** | |
* * | |
* FreeRTOS provides completely free yet professionally developed, * | |
* robust, strictly quality controlled, supported, and cross * | |
* platform software that is more than just the market leader, it * | |
* is the industry's de facto standard. * | |
* * | |
* Help yourself get started quickly while simultaneously helping * | |
* to support the FreeRTOS project by purchasing a FreeRTOS * | |
* tutorial book, reference manual, or both: * | |
* http://www.FreeRTOS.org/Documentation * | |
* * | |
*************************************************************************** | |
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading | |
the FAQ page "My application does not run, what could be wrong?". Have you | |
defined configASSERT()? | |
http://www.FreeRTOS.org/support - In return for receiving this top quality | |
embedded software for free we request you assist our global community by | |
participating in the support forum. | |
http://www.FreeRTOS.org/training - Investing in training allows your team to | |
be as productive as possible as early as possible. Now you can receive | |
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers | |
Ltd, and the world's leading authority on the world's leading RTOS. | |
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, | |
including FreeRTOS+Trace - an indispensable productivity tool, a DOS | |
compatible FAT file system, and our tiny thread aware UDP/IP stack. | |
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. | |
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. | |
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High | |
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS | |
licenses offer ticketed support, indemnification and commercial middleware. | |
http://www.SafeRTOS.com - High Integrity Systems also provide a safety | |
engineered and independently SIL3 certified version for use in safety and | |
mission critical applications that require provable dependability. | |
1 tab == 4 spaces! | |
*/ | |
/* | |
* Provides the port specific part of the standard IntQ test, which is | |
* implemented in FreeRTOS/Demo/Common/Minimal/IntQueue.c. Three HPET timers | |
* are used to generate the interrupts. The timers are configured in | |
* prvSetupHardware(), in main.c. | |
*/ | |
/* Scheduler includes. */ | |
#include "FreeRTOS.h" | |
/* Demo includes. */ | |
#include "IntQueueTimer.h" | |
#include "IntQueue.h" | |
/* | |
* Prototypes of the callback functions which are called from the HPET timer | |
* support file. For demonstration purposes, timer 0 and timer 1 are standard | |
* C functions that use the central interrupt handler, and are installed using | |
* xPortRegisterCInterruptHandler() - and timer 2 uses its own interrupt entry | |
* asm wrapper code and is installed using xPortInstallInterruptHandler(). For | |
* convenience the asm wrapper which calls vApplicationHPETTimer1Handler(), is | |
* implemented in RegTest.S. See | |
* http://www.freertos.org/RTOS_Intel_Quark_Galileo_GCC.html#interrupts for more | |
* details. | |
*/ | |
void vApplicationHPETTimer0Handler( void ); | |
void vApplicationHPETTimer1Handler( void ); | |
void vApplicationHPETTimer2Handler( void ); | |
/* | |
* Set to pdTRUE when vInitialiseTimerForIntQueueTest() is called so the timer | |
* callback functions know the scheduler is running and the tests can run. | |
*/ | |
static volatile BaseType_t xSchedulerRunning = pdFALSE; | |
/* Used to count the nesting depth to ensure the test is testing what it is | |
intended to test. */ | |
static volatile uint32_t ulMaxInterruptNesting = 0; | |
extern volatile uint32_t ulInterruptNesting; | |
/*-----------------------------------------------------------*/ | |
void vInitialiseTimerForIntQueueTest( void ) | |
{ | |
/* The HPET timers are set up in main(), before the scheduler is started, | |
so there is nothing to do here other than note the scheduler is now running. | |
This could be done by calling a FreeRTOS API function, but its convenient | |
and efficient just to store the fact in a file scope variable. */ | |
xSchedulerRunning = pdTRUE; | |
} | |
/*-----------------------------------------------------------*/ | |
void vApplicationHPETTimer0Handler( void ) | |
{ | |
BaseType_t xHigherPriorityTaskWoken; | |
if( xSchedulerRunning != pdFALSE ) | |
{ | |
if( ulInterruptNesting > ulMaxInterruptNesting ) | |
{ | |
ulMaxInterruptNesting = ulInterruptNesting; | |
} | |
xHigherPriorityTaskWoken = xFirstTimerHandler(); | |
portYIELD_FROM_ISR( xHigherPriorityTaskWoken ); | |
} | |
} | |
/*-----------------------------------------------------------*/ | |
void vApplicationHPETTimer1Handler( void ) | |
{ | |
BaseType_t xHigherPriorityTaskWoken; | |
if( xSchedulerRunning != pdFALSE ) | |
{ | |
if( ulInterruptNesting > ulMaxInterruptNesting ) | |
{ | |
ulMaxInterruptNesting = ulInterruptNesting; | |
} | |
xHigherPriorityTaskWoken = xSecondTimerHandler(); | |
portYIELD_FROM_ISR( xHigherPriorityTaskWoken ); | |
} | |
} | |
/*-----------------------------------------------------------*/ | |
void vApplicationHPETTimer2Handler( void ) | |
{ | |
if( ulInterruptNesting > ulMaxInterruptNesting ) | |
{ | |
ulMaxInterruptNesting = ulInterruptNesting; | |
} | |
} | |