Source/portable/GCC/PPC440_Xilinx/portmacro.h

/*
    FreeRTOS V7.0.0 - Copyright (C) 2011 Real Time Engineers Ltd.
	

    ***************************************************************************
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     *    Complete, revised, and edited pdf reference manuals are also       *
     *    available.                                                         *
     *                                                                       *
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     *    professional grade, cross platform, de facto standard solutions    *
     *    for microcontrollers - completely free of charge!                  *
     *                                                                       *
     *    >>> See http://www.FreeRTOS.org/Documentation for details. <<<     *
     *                                                                       *
     *    Thank you for using FreeRTOS, and thank you for your support!      *
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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 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.  See the GNU General Public License for
    more details. You should have received a copy of the GNU General Public
    License and the FreeRTOS license exception along with FreeRTOS; if not it
    can be viewed here: http://www.freertos.org/a00114.html and also obtained
    by writing to Richard Barry, contact details for whom are available on the
    FreeRTOS WEB site.

    1 tab == 4 spaces!

    http://www.FreeRTOS.org - Documentation, latest information, license and
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*/

#ifndef PORTMACRO_H
#define PORTMACRO_H

#include "xexception_l.h"

#ifdef __cplusplus
extern "C" {
#endif

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

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

/* This port uses the critical nesting count from the TCB rather than
maintaining a separate value and then saving this value in the task stack. */
#define portCRITICAL_NESTING_IN_TCB		1

/* Interrupt control macros. */
#define portDISABLE_INTERRUPTS()		XExc_mDisableExceptions( XEXC_NON_CRITICAL );
#define portENABLE_INTERRUPTS()			XExc_mEnableExceptions( XEXC_NON_CRITICAL );

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

/* Critical section macros. */
void vTaskEnterCritical( void );
void vTaskExitCritical( void );
#define portENTER_CRITICAL()			vTaskEnterCritical()
#define portEXIT_CRITICAL()				vTaskExitCritical()

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

/* Task utilities. */
void vPortYield( void );
#define portYIELD() asm volatile ( "SC \n\t NOP" )
#define portYIELD_FROM_ISR() vTaskSwitchContext()

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

/* Hardware specifics. */
#define portBYTE_ALIGNMENT			8
#define portSTACK_GROWTH			( -1 )
#define portTICK_RATE_MS			( ( portTickType ) 1000 / configTICK_RATE_HZ )		
#define portNOP()					asm volatile ( "NOP" )

/* There are 32 * 32bit floating point regieters, plus the FPSCR to save. */
#define portNO_FLOP_REGISTERS_TO_SAVE  ( 32 + 1 )

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

/* 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 )

/* Port specific interrupt handling functions. */
void vPortSetupInterruptController( void );
portBASE_TYPE xPortInstallInterruptHandler( unsigned portCHAR ucInterruptID, XInterruptHandler pxHandler, void *pvCallBackRef );

#ifdef __cplusplus
}
#endif

#endif /* PORTMACRO_H */