portable.h

freescale k40/k60 freertos-lwip例程

/*
    FreeRTOS V6.0.4 - Copyright (C) 2010 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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*/

/*-----------------------------------------------------------
 * Portable layer API.  Each function must be defined for each port.
 *----------------------------------------------------------*/

#ifndef PORTABLE_H
#define PORTABLE_H

/* Include the macro file relevant to the port being used. */

#ifdef IAR_KINETIS
	#include "../portable/IAR/ARM_CM4/portmacro.h"
#endif
	
/* Catch all to ensure portmacro.h is included in the build.  Newer demos
have the path as part of the project options, rather than as relative from
the project location.  If portENTER_CRITICAL() has not been defined then
portmacro.h has not yet been included - as every portmacro.h provides a
portENTER_CRITICAL() definition.  Check the demo application for your demo
to find the path to the correct portmacro.h file. */
#ifndef portENTER_CRITICAL
	#include "portmacro.h"	
#endif
	
#if portBYTE_ALIGNMENT == 8
	#define portBYTE_ALIGNMENT_MASK ( 0x0007 )
#endif

#if portBYTE_ALIGNMENT == 4
	#define portBYTE_ALIGNMENT_MASK	( 0x0003 )
#endif

#if portBYTE_ALIGNMENT == 2
	#define portBYTE_ALIGNMENT_MASK	( 0x0001 )
#endif

#if portBYTE_ALIGNMENT == 1
	#define portBYTE_ALIGNMENT_MASK	( 0x0000 )
#endif

#ifndef portBYTE_ALIGNMENT_MASK
	#error "Invalid portBYTE_ALIGNMENT definition"
#endif

#ifndef portNUM_CONFIGURABLE_REGIONS
	#define portNUM_CONFIGURABLE_REGIONS 1
#endif

#ifdef __cplusplus
extern "C" {
#endif

#include "mpu_wrappers.h"

/*
 * Setup the stack of a new task so it is ready to be placed under the
 * scheduler control.  The registers have to be placed on the stack in
 * the order that the port expects to find them.
 *
 */
#if( portUSING_MPU_WRAPPERS == 1 )
	portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters, portBASE_TYPE xRunPrivileged ) PRIVILEGED_FUNCTION;
#else
	portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters );
#endif

/*
 * Map to the memory management routines required for the port.
 */
void *pvPortMalloc( size_t xSize ) PRIVILEGED_FUNCTION;
void vPortFree( void *pv ) PRIVILEGED_FUNCTION;
void vPortInitialiseBlocks( void ) PRIVILEGED_FUNCTION;
size_t xPortGetFreeHeapSize( void ) PRIVILEGED_FUNCTION;

/*
 * Setup the hardware ready for the scheduler to take control.  This generally
 * sets up a tick interrupt and sets timers for the correct tick frequency.
 */
portBASE_TYPE xPortStartScheduler( void ) PRIVILEGED_FUNCTION;

/*
 * Undo any hardware/ISR setup that was performed by xPortStartScheduler() so
 * the hardware is left in its original condition after the scheduler stops
 * executing.
 */
void vPortEndScheduler( void ) PRIVILEGED_FUNCTION;

/*
 * The structures and methods of manipulating the MPU are contained within the
 * port layer.
 *
 * Fills the xMPUSettings structure with the memory region information
 * contained in xRegions.
 */
#if( portUSING_MPU_WRAPPERS == 1 ) 
	struct xMEMORY_REGION;
	void vPortStoreTaskMPUSettings( xMPU_SETTINGS *xMPUSettings, const struct xMEMORY_REGION * const xRegions, portSTACK_TYPE *pxBottomOfStack, unsigned short usStackDepth ) PRIVILEGED_FUNCTION;
#endif

#ifdef __cplusplus
}
#endif

#endif /* PORTABLE_H */