Source/portable/Renesas/SH2A_FPU/port.c

/*
    FreeRTOS V6.0.1 - Copyright (C) 2009 Real Time Engineers Ltd.

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    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
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*/


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


/*-----------------------------------------------------------
 * Implementation of functions defined in portable.h for the SH2A port.
 *----------------------------------------------------------*/


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

/*
 * Setup a peripheral timer to generate the RTOS tick interrupt.
 */
static void prvSetupTimerInterrupt( void );

/*
 * The TRAPA handler used to force a context switch.
 */
void vPortYield( void );

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

/* 
 * See header file for description. 
 */
portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters )
{

}
/*-----------------------------------------------------------*/

portBASE_TYPE xPortStartScheduler( void )
{
	/* Start the tick interrupt. */
	prvSetupTimerInterrupt();
	
	/* Start the first task. */

	/* Should not get here. */
	return pdFAIL;
}
/*-----------------------------------------------------------*/

void vPortEndScheduler( void )
{
	/* Not implemented as there is nothing to return to. */
}
/*-----------------------------------------------------------*/

void vPortYield( void )
{
}
/*-----------------------------------------------------------*/

void vPortTickInterrupt( void )
{
	vTaskIncrementTick();
	#if configUSE_PREEMPTION == 1
		vTaskSwitchContext();
	#endif
}
/*-----------------------------------------------------------*/

static void prvSetupTimerInterrupt( void )
{
extern void vApplicationSetupTimerInterrupt( void );

	/* Call an application function to set up the timer.  This way the application
	can decide which peripheral to use.  A demo application is provided to show a
	suitable example. */
	vApplicationSetupTimerInterrupt();
}
/*-----------------------------------------------------------*/