/*
	FreeRTOS.org V4.1.3 - Copyright (C) 2003-2006 Richard Barry.

	This file is part of the FreeRTOS.org distribution.

	FreeRTOS.org is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	FreeRTOS.org 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.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with FreeRTOS.org; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

	A special exception to the GPL can be applied should you wish to distribute
	a combined work that includes FreeRTOS.org, without being obliged to provide
	the source code for any proprietary components.  See the licensing section
	of http://www.FreeRTOS.org for full details of how and when the exception
	can be applied.

	***************************************************************************
	See http://www.FreeRTOS.org for documentation, latest information, license
	and contact details.  Please ensure to read the configuration and relevant
	port sections of the online documentation.
	***************************************************************************
*/


#ifndef PORTMACRO_H
#define PORTMACRO_H

/*-----------------------------------------------------------
 * Port specific definitions.
 *
 * The settings in this file configure FreeRTOS correctly for the
 * given hardware and compiler.
 *
 * These settings should not be altered.
 *-----------------------------------------------------------
 */

#include <intrinsic.h>

/* Type definitions. */
#define portCHAR		char
#define portFLOAT		float
#define portDOUBLE		double
#define portLONG		long
#define portSHORT		short
#define portSTACK_TYPE	unsigned portLONG
#define portBASE_TYPE	portLONG

#if( configUSE_16_BIT_TICKS == 1 )
	typedef unsigned portSHORT portTickType;
	#define portMAX_DELAY ( portTickType ) 0xffff
#else
	typedef unsigned portLONG portTickType;
	#define portMAX_DELAY ( portTickType ) 0xffffffff
#endif
/*-----------------------------------------------------------*/	

/* Hardware specifics. */
#define portSTACK_GROWTH			( -1 )
#define portTICK_RATE_MS			( ( portTickType ) 1000 / configTICK_RATE_HZ )		
#define portBYTE_ALIGNMENT			4
#define portYIELD()					asm ( "SWI 0" )
#define portNOP()					asm ( "NOP" )
/*-----------------------------------------------------------*/	

/* Critical section handling. */
__arm __interwork void vPortDisableInterruptsFromThumb( void );
__arm __interwork void vPortEnableInterruptsFromThumb( void );
__arm __interwork void vPortEnterCritical( void );
__arm __interwork void vPortExitCritical( void );

#define portDISABLE_INTERRUPTS()	__disable_interrupt()
#define portENABLE_INTERRUPTS()		__enable_interrupt()
#define portENTER_CRITICAL()		vPortEnterCritical()
#define portEXIT_CRITICAL()			vPortExitCritical()
/*-----------------------------------------------------------*/	

/* Task utilities. */
#define portEND_SWITCHING_ISR( xSwitchRequired ) 	\
{													\
extern void vTaskSwitchContext( void );				\
													\
	if( xSwitchRequired ) 							\
	{												\
		vTaskSwitchContext();						\
	}												\
}
/*-----------------------------------------------------------*/	

/* EIC utilities. */
#define portEIC_CICR_ADDR		*( ( unsigned portLONG * ) 0xFFFFF804 )
#define portEIC_IPR_ADDR		*( ( unsigned portLONG * ) 0xFFFFF840 )
#define portCLEAR_EIC()			portEIC_IPR_ADDR = 0x01 << portEIC_CICR_ADDR

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

/* Compiler specifics */
#define inline

/* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters )
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters )

#endif /* PORTMACRO_H */