FreeRTOS/Demo/CORTEX_M4_SimpleLink_CC3220SF_CCS/main.c

/*
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    This file is part of the FreeRTOS distribution.

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    the terms of the GNU General Public License (version 2) as published by the
    Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.

    ***************************************************************************
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    >>!   outside of the FreeRTOS kernel.                                   !<<
    ***************************************************************************

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    ***************************************************************************
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*/

/******************************************************************************
 * This project provides two demo applications.  A simple blinky style project,
 * and a more comprehensive test and demo application.  The
 * configCREATE_SIMPLE_TICKLESS_DEMO setting (defined in FreeRTOSConfig.h) is
 * used to select between the two.  The simply blinky demo is implemented and
 * described in main_blinky.c.  The more comprehensive test and demo application
 * is implemented and described in main_full.c.
 *
 * The blinky demo uses FreeRTOS's tickless idle mode to reduce power
 * consumption.  See the notes on the web page below regarding the difference
 * in power saving that can be achieved between using the generic tickless
 * implementation (as used by the blinky demo) and a tickless implementation
 * that is tailored specifically to the CC3220.
 *
 * This file implements the code that is not demo specific.
 *
 * See http://www.FreeRTOS.org/TI_CC3220_SimpleLink_FreeRTOS_Demo.html for
 * instructions.
 *
 */

/* Standard includes. */
#include <stdio.h>

/* TI includes. */
#include <ti/drivers/GPIO.h>
#include <ti/boards/CC3220SF_LAUNCHXL/Board.h>

/* Kernel includes. */
#include "FreeRTOS.h"
#include "task.h"

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

/*
 * Set up the hardware ready to run this demo.
 */
static void prvSetupHardware( void );

/*
 * main_blinky() is used when configCREATE_SIMPLE_TICKLESS_DEMO is set to 1.
 * main_full() is used when configCREATE_SIMPLE_TICKLESS_DEMO is set to 0.
 */
extern void main_blinky( void );
extern void main_full( void );

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

int main( void )
{
	/* See http://www.FreeRTOS.org/TI_CC3220_SimpleLink_FreeRTOS_Demo.html for
    instructions. */


	/* Prepare the hardware to run this demo. */
	prvSetupHardware();

	/* The configCREATE_SIMPLE_TICKLESS_DEMO setting is described at the top
	of this file. */
	#if( configCREATE_SIMPLE_TICKLESS_DEMO == 1 )
	{
		main_blinky();
	}
	#else
	{
		main_full();
	}
	#endif

	return 0;
}
/*-----------------------------------------------------------*/

static void prvSetupHardware( void )
{
    /* Call board init functions */
    Board_initGeneral();
    Board_initGPIO();
    GPIO_write( Board_LED0, Board_GPIO_LED_OFF );
}
/*-----------------------------------------------------------*/

void vMainToggleLED( void )
{
static uint32_t ulLEDState = Board_GPIO_LED_OFF;

    ulLEDState = !ulLEDState;
    GPIO_write( Board_LED0, ulLEDState );
}
/*-----------------------------------------------------------*/

void vApplicationMallocFailedHook( void )
{
	/* vApplicationMallocFailedHook() will only be called if
	configUSE_MALLOC_FAILED_HOOK is set to 1 in FreeRTOSConfig.h.  It is a hook
	function that will get called if a call to pvPortMalloc() fails.
	pvPortMalloc() is called internally by the kernel whenever a task, queue,
	timer or semaphore is created.  It is also called by various parts of the
	demo application.  If heap_1.c or heap_2.c are used, then the size of the
	heap available to pvPortMalloc() is defined by configTOTAL_HEAP_SIZE in
	FreeRTOSConfig.h, and the xPortGetFreeHeapSize() API function can be used
	to query the size of free heap space that remains (although it does not
	provide information on how the remaining heap might be fragmented). */
	taskDISABLE_INTERRUPTS();
	for( ;; );
}
/*-----------------------------------------------------------*/

void vApplicationIdleHook( void )
{
	/* vApplicationIdleHook() will only be called if configUSE_IDLE_HOOK is set
	to 1 in FreeRTOSConfig.h.  It will be called on each iteration of the idle
	task.  It is essential that code added to this hook function never attempts
	to block in any way (for example, call xQueueReceive() with a block time
	specified, or call vTaskDelay()).  If the application makes use of the
	vTaskDelete() API function (as this demo application does) then it is also
	important that vApplicationIdleHook() is permitted to return to its calling
	function, because it is the responsibility of the idle task to clean up
	memory allocated by the kernel to any task that has since been deleted. */
}
/*-----------------------------------------------------------*/

void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
{
	( void ) pcTaskName;
	( void ) pxTask;

	/* Run time stack overflow checking is performed if
	configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2.  This hook
	function is called if a stack overflow is detected. */
	taskDISABLE_INTERRUPTS();
	for( ;; );
}
/*-----------------------------------------------------------*/

void *malloc( size_t xSize )
{
	/* There should not be a heap defined, so trap any attempts to call
	malloc. */
	taskDISABLE_INTERRUPTS();
	for( ;; );
}
/*-----------------------------------------------------------*/

/* configUSE_STATIC_ALLOCATION is set to 1, so the application must provide an
implementation of vApplicationGetIdleTaskMemory() to provide the memory that is
used by the Idle task. */
void vApplicationGetIdleTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer, StackType_t **ppxIdleTaskStackBuffer, uint32_t *pulIdleTaskStackSize )
{
/* If the buffers to be provided to the Idle task are declared inside this
function then they must be declared static - otherwise they will be allocated on
the stack and so not exists after this function exits. */
static StaticTask_t xIdleTaskTCB;
static StackType_t uxIdleTaskStack[ configMINIMAL_STACK_SIZE ];

    /* Pass out a pointer to the StaticTask_t structure in which the Idle task's
    state will be stored. */
    *ppxIdleTaskTCBBuffer = &xIdleTaskTCB;

    /* Pass out the array that will be used as the Idle task's stack. */
    *ppxIdleTaskStackBuffer = uxIdleTaskStack;

    /* Pass out the size of the array pointed to by *ppxIdleTaskStackBuffer.
    Note that, as the array is necessarily of type StackType_t,
    configMINIMAL_STACK_SIZE is specified in words, not bytes. */
    *pulIdleTaskStackSize = configMINIMAL_STACK_SIZE;
}
/*-----------------------------------------------------------*/

/* configUSE_STATIC_ALLOCATION and configUSE_TIMERS are both set to 1, so the
application must provide an implementation of vApplicationGetTimerTaskMemory()
to provide the memory that is used by the Timer service task. */
void vApplicationGetTimerTaskMemory( StaticTask_t **ppxTimerTaskTCBBuffer, StackType_t **ppxTimerTaskStackBuffer, uint32_t *pulTimerTaskStackSize )
{
/* If the buffers to be provided to the Timer task are declared inside this
function then they must be declared static - otherwise they will be allocated on
the stack and so not exists after this function exits. */
static StaticTask_t xTimerTaskTCB;
static StackType_t uxTimerTaskStack[ configTIMER_TASK_STACK_DEPTH ];

    /* Pass out a pointer to the StaticTask_t structure in which the Timer
    task's state will be stored. */
    *ppxTimerTaskTCBBuffer = &xTimerTaskTCB;

    /* Pass out the array that will be used as the Timer task's stack. */
    *ppxTimerTaskStackBuffer = uxTimerTaskStack;

    /* Pass out the size of the array pointed to by *ppxTimerTaskStackBuffer.
    Note that, as the array is necessarily of type StackType_t,
    configMINIMAL_STACK_SIZE is specified in words, not bytes. */
    *pulTimerTaskStackSize = configTIMER_TASK_STACK_DEPTH;
}
/*-----------------------------------------------------------*/

/* Catch asserts so the file and line number of the assert can be viewed. */
void vMainAssertCalled( const char *pcFileName, uint32_t ulLineNumber )
{
    taskENTER_CRITICAL();
    for( ;; )
    {
        /* Use the variables to prevent compiler warnings and in an attempt to
        ensure they can be viewed in the debugger.  If the variables get
        optimised away then set copy their values to file scope or globals then
        view the variables they are copied to. */
        ( void ) pcFileName;
        ( void ) ulLineNumber;
    }
}
/*-----------------------------------------------------------*/

/* To enable the libraries to build. */
void PowerCC32XX_enterLPDS( void *driverlibFunc )
{
    ( void ) driverlibFunc;

    /* This function is not implemented so trap any calls to it by halting
    here. */
    configASSERT( driverlibFunc == NULL  );
}