Demo/PIC18_WizC/Demo2/interrupt.c

/*
	FreeRTOS.org V5.3.1 - Copyright (C) 2003-2009 Richard Barry.

	This file is part of the FreeRTOS.org distribution.

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	**NOTE** The exception to the GPL is included to allow you to distribute a
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	***************************************************************************
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*/

/* 
Changes from V3.0.0
	+ Added functionality to only call vTaskSwitchContext() once
	  when handling multiple interruptsources in a single interruptcall.

	+ Included Filenames changed to a .c extension to allow stepping through
	  code using F7.

Changes from V3.0.1
*/

#include <pic.h>

/* Scheduler include files. */
#include <FreeRTOS.h>
#include <task.h>
#include <queue.h>

static bit uxSwitchRequested;

/*
 * Vector for the ISR.
 */
void pointed Interrupt()
{
	/*
	 * Save the context of the current task.
	 */
	portSAVE_CONTEXT( portINTERRUPTS_FORCED );

	/*
	 * No contextswitch requested yet
	 */
	uxSwitchRequested	= pdFALSE;
	
	/*
	 * Was the interrupt the FreeRTOS SystemTick?
	 */
	#include <libFreeRTOS/Drivers/Tick/isrTick.c>

/*******************************************************************************
** DO NOT MODIFY ANYTHING ABOVE THIS LINE
********************************************************************************
** Enter the includes for the ISR-code of the FreeRTOS drivers below.
**
** You cannot use local variables. Alternatives are:
** - Use static variables	(Global RAM usage increases)
** - Call a function		(Additional cycles are needed)
** - Use unused SFR's		(preferred, no additional overhead)
** See "../Serial/isrSerialTx.c" for an example of this last option
*******************************************************************************/



	/*
	 * Was the interrupt a byte being received?
	 */
	#include "../Serial/isrSerialRx.c"


	/*
	 * Was the interrupt the Tx register becoming empty?
	 */
	#include "../Serial/isrSerialTx.c"



/*******************************************************************************
** DO NOT MODIFY ANYTHING BELOW THIS LINE
*******************************************************************************/
	/*
	 * Was a contextswitch requested by one of the
	 * interrupthandlers?
	 */
	 if ( uxSwitchRequested )
	 {
	 	vTaskSwitchContext();
	 }
	 
	/*
	 * Restore the context of the (possibly other) task.
	 */
	portRESTORE_CONTEXT();

	#pragma asmline retfie	0
}