/*
    FreeRTOS V9.0.0 - Copyright (C) 2016 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

    ***************************************************************************
     *                                                                       *
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    ***************************************************************************

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    1 tab == 4 spaces!
*/

/*-----------------------------------------------------------
 * Simple GPIO (parallel port) IO routines.
 *-----------------------------------------------------------*/

/* Kernel includes. */
#include "FreeRTOS.h"
#include "task.h"

/* Hardware includes. */
#include <XMC1200.h>

/* Standard demo include. */
#include "partest.h"

/* The port bits on which LEDs are connected. */
static const unsigned long ulLEDBits[] = 
{ 
	1UL << 0, /* P0.0 */
	1UL << 2, /* P0.2 */
	1UL << 5, /* P0.5 */
	1UL << 6, /* P0.6 */
	1UL << 7  /* P0.7 */
};

#define partstNUM_LEDS	( sizeof( ulLEDBits ) / sizeof( unsigned long ) )

/* Shift the LED bit into the correct position within the POW register to
perform the desired operation. */
#define partstON_SHIFT	( 16UL )
#define partstOFF_SHIFT	( 0UL )

/*-----------------------------------------------------------*/

void vParTestInitialise( void )
{
	/* Configure relevant port P0 to push pull output to drive LEDs. */
	
	/* P0.0 */
	PORT0->IOCR0 &= ~( ( 0xFFUL <<  0 ) );
	PORT0->IOCR0 |= ( 0x80UL <<  0 );
	vParTestSetLED( 0, pdFALSE );

	/* P0.2 */
	PORT0->IOCR0 &= ~( ( 0xFFUL << 16 ) );
	PORT0->IOCR0 |= ( 0x80UL << 16 );
	vParTestSetLED( 1, pdFALSE );

	/* P0.5 */
	PORT0->IOCR4 &= ~( ( 0xFFUL << 8 ) );
	PORT0->IOCR4 |= ( 0x80UL << 8 );
	vParTestSetLED( 2, pdFALSE );

	/* P0.6 */
	PORT0->IOCR4 &= ~( ( 0xFFUL << 16 ) );
	PORT0->IOCR4 |= ( 0x80UL << 16 );
	vParTestSetLED( 3, pdFALSE );

	/* P0.7 */
	PORT0->IOCR4 &= ~( ( 0xFFUL << 24 ) );
	PORT0->IOCR4 |= ( 0x80UL << 24 );
	vParTestSetLED( 4, pdFALSE );
}
/*-----------------------------------------------------------*/

void vParTestSetLED( unsigned long ulLED, signed portBASE_TYPE xValue )
{
	if( ulLED < partstNUM_LEDS )
	{
		if( xValue == pdTRUE )
		{
			/* Turn the LED on. */			
			PORT0->OMR = ( ulLEDBits[ ulLED ] << partstON_SHIFT );
		}
		else
		{
			/* Turn the LED off. */			
			PORT0->OMR = ( ulLEDBits[ ulLED ] << partstOFF_SHIFT );
		}
	}
}
/*-----------------------------------------------------------*/

void vParTestToggleLED( unsigned long ulLED )
{
	if( ulLED < partstNUM_LEDS )
	{
		/* Setting both the ON and OFF bits simultaneously results in the bit
		being toggled. */
		PORT0->OMR = ( ulLEDBits[ ulLED ] << partstON_SHIFT ) | ( ulLEDBits[ ulLED ] << partstOFF_SHIFT );
	}
}
/*-----------------------------------------------------------*/