dtu_simple/app/FreeRTOS-8.2.3/portable/RVDS/ARM_CM3/portmacro.h

/*
    FreeRTOS V8.2.3 - Copyright (C) 2015 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.                                   !<<
    ***************************************************************************

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    FOR A PARTICULAR PURPOSE.  Full license text is available on the following
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    ***************************************************************************
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    1 tab == 4 spaces!
*/


#ifndef PORTMACRO_H
#define PORTMACRO_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	uint32_t
#define portBASE_TYPE	long

typedef portSTACK_TYPE StackType_t;
typedef long BaseType_t;
typedef unsigned long UBaseType_t;

#if( configUSE_16_BIT_TICKS == 1 )
	typedef uint16_t TickType_t;
	#define portMAX_DELAY ( TickType_t ) 0xffff
#else
	typedef uint32_t TickType_t;
	#define portMAX_DELAY ( TickType_t ) 0xffffffffUL

	/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
	not need to be guarded with a critical section. */
	#define portTICK_TYPE_IS_ATOMIC 1
#endif
/*-----------------------------------------------------------*/

/* Architecture specifics. */
#define portSTACK_GROWTH			( -1 )
#define portTICK_PERIOD_MS			( ( TickType_t ) 1000 / configTICK_RATE_HZ )
#define portBYTE_ALIGNMENT			8
/*-----------------------------------------------------------*/

/* Scheduler utilities. */
extern void vPortYield( void );
#define portNVIC_INT_CTRL_REG		( * ( ( volatile uint32_t * ) 0xe000ed04 ) )
#define portNVIC_PENDSVSET_BIT		( 1UL << 28UL )
#define portYIELD()					vPortYield()
#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT
#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
/*-----------------------------------------------------------*/

/* Critical section management. */
extern uint32_t ulPortSetInterruptMask( void );
extern void vPortClearInterruptMask( uint32_t ulNewMask );
extern void vPortEnterCritical( void );
extern void vPortExitCritical( void );

#define portDISABLE_INTERRUPTS()				ulPortSetInterruptMask()
#define portENABLE_INTERRUPTS()					vPortClearInterruptMask( 0 )
#define portENTER_CRITICAL()					vPortEnterCritical()
#define portEXIT_CRITICAL()						vPortExitCritical()
#define portSET_INTERRUPT_MASK_FROM_ISR()		ulPortSetInterruptMask()
#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x)	vPortClearInterruptMask(x)
/*-----------------------------------------------------------*/

/* Tickless idle/low power functionality. */
#ifndef portSUPPRESS_TICKS_AND_SLEEP
	extern void vPortSuppressTicksAndSleep( TickType_t xExpectedIdleTime );
	#define portSUPPRESS_TICKS_AND_SLEEP( xExpectedIdleTime ) vPortSuppressTicksAndSleep( xExpectedIdleTime )
#endif
/*-----------------------------------------------------------*/

/* Port specific optimisations. */
#ifndef configUSE_PORT_OPTIMISED_TASK_SELECTION
	#define configUSE_PORT_OPTIMISED_TASK_SELECTION 1
#endif

#if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1

	/* Check the configuration. */
	#if( configMAX_PRIORITIES > 32 )
		#error configUSE_PORT_OPTIMISED_TASK_SELECTION can only be set to 1 when configMAX_PRIORITIES is less than or equal to 32.  It is very rare that a system requires more than 10 to 15 difference priorities as tasks that share a priority will time slice.
	#endif

	/* Store/clear the ready priorities in a bit map. */
	#define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( 1UL << ( uxPriority ) )
	#define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( 1UL << ( uxPriority ) )

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

	#define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31 - __clz( ( uxReadyPriorities ) ) )

#endif /* taskRECORD_READY_PRIORITY */
/*-----------------------------------------------------------*/

/* Task function macros as described on the FreeRTOS.org WEB site.  These are
not necessary for to use this port.  They are defined so the common demo files
(which build with all the ports) will build. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
/*-----------------------------------------------------------*/

#ifdef configASSERT
	void vPortValidateInterruptPriority( void );
	#define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() 	vPortValidateInterruptPriority()
#endif

/* portNOP() is not required by this port. */
#define portNOP()

#ifdef __cplusplus
}
#endif

#endif /* PORTMACRO_H */