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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Source/] [portable/] [IAR/] [MSP430X/] [portmacro.h] - Blame information for rev 572

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1 572 jeremybenn
/*
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    FreeRTOS V6.1.1 - Copyright (C) 2011 Real Time Engineers Ltd.
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    ***************************************************************************
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    *                                                                         *
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    * If you are:                                                             *
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    *                                                                         *
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    *    + New to FreeRTOS,                                                   *
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    *    + Wanting to learn FreeRTOS or multitasking in general quickly       *
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    *    + Looking for basic training,                                        *
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    *    + Wanting to improve your FreeRTOS skills and productivity           *
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    *                                                                         *
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    * then take a look at the FreeRTOS books - available as PDF or paperback  *
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    *                                                                         *
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    *        "Using the FreeRTOS Real Time Kernel - a Practical Guide"        *
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    *                  http://www.FreeRTOS.org/Documentation                  *
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    *                                                                         *
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    * A pdf reference manual is also available.  Both are usually delivered   *
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    * to your inbox within 20 minutes to two hours when purchased between 8am *
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    * and 8pm GMT (although please allow up to 24 hours in case of            *
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    * exceptional circumstances).  Thank you for your support!                *
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    *                                                                         *
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    ***************************************************************************
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    This file is part of the FreeRTOS distribution.
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    FreeRTOS is free software; you can redistribute it and/or modify it under
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    the terms of the GNU General Public License (version 2) as published by the
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    Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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    ***NOTE*** The exception to the GPL is included to allow you to distribute
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    a combined work that includes FreeRTOS without being obliged to provide the
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    source code for proprietary components outside of the FreeRTOS kernel.
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    FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
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    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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    more details. You should have received a copy of the GNU General Public
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    License and the FreeRTOS license exception along with FreeRTOS; if not it
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    can be viewed here: http://www.freertos.org/a00114.html and also obtained
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    by writing to Richard Barry, contact details for whom are available on the
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    FreeRTOS WEB site.
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    1 tab == 4 spaces!
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    http://www.FreeRTOS.org - Documentation, latest information, license and
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    contact details.
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    http://www.SafeRTOS.com - A version that is certified for use in safety
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    critical systems.
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    http://www.OpenRTOS.com - Commercial support, development, porting,
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    licensing and training services.
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*/
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#ifndef PORTMACRO_H
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#define PORTMACRO_H
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/*-----------------------------------------------------------
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 * Port specific definitions.
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 *
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 * The settings in this file configure FreeRTOS correctly for the
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 * given hardware and compiler.
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 *
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 * These settings should not be altered.
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 *-----------------------------------------------------------
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 */
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/* Hardware includes. */
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#include "msp430.h"
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/* Type definitions. */
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#define portCHAR                char
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#define portFLOAT               float
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#define portDOUBLE              double
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#define portLONG                long
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#define portSHORT               int
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#define portBASE_TYPE   portSHORT
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/* The stack type changes depending on the data model. */
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#if( __DATA_MODEL__ == __DATA_MODEL_SMALL__ )
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        #define portSTACK_TYPE unsigned short
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#else
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        #define portSTACK_TYPE unsigned long
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#endif
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#if( configUSE_16_BIT_TICKS == 1 )
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        typedef unsigned portSHORT portTickType;
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        #define portMAX_DELAY ( portTickType ) 0xffff
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#else
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        typedef unsigned portLONG portTickType;
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        #define portMAX_DELAY ( portTickType ) 0xffffffff
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#endif
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/*-----------------------------------------------------------*/
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/* Interrupt control macros. */
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#define portDISABLE_INTERRUPTS()        _DINT()
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#define portENABLE_INTERRUPTS()         _EINT()
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/*-----------------------------------------------------------*/
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/* Critical section control macros. */
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#define portNO_CRITICAL_SECTION_NESTING         ( ( unsigned portSHORT ) 0 )
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#define portENTER_CRITICAL()                                                                                                    \
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{                                                                                                                                                               \
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extern volatile unsigned short usCriticalNesting;                                                               \
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                                                                                                                                                                \
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        portDISABLE_INTERRUPTS();                                                                                                       \
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                                                                                                                                                                \
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        /* Now interrupts are disabled usCriticalNesting can be accessed */                     \
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        /* directly.  Increment ulCriticalNesting to keep a count of how many */        \
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        /* times portENTER_CRITICAL() has been called. */                                                       \
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        usCriticalNesting++;                                                                                                            \
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}
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#define portEXIT_CRITICAL()                                                                                                             \
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{                                                                                                                                                               \
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extern volatile unsigned short usCriticalNesting;                                                       \
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                                                                                                                                                                \
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        if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING )                                       \
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        {                                                                                                                                                       \
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                /* Decrement the nesting count as we are leaving a critical section. */ \
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                usCriticalNesting--;                                                                                                    \
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                                                                                                                                                                \
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                /* If the nesting level has reached zero then interrupts should be */   \
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                /* re-enabled. */                                                                                                               \
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                if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING )                              \
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                {                                                                                                                                               \
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                        portENABLE_INTERRUPTS();                                                                                        \
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                }                                                                                                                                               \
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        }                                                                                                                                                       \
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}
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/*-----------------------------------------------------------*/
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/* Task utilities. */
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/*
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 * Manual context switch called by portYIELD or taskYIELD.
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 */
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extern void vPortYield( void );
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#define portYIELD() vPortYield()
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/*-----------------------------------------------------------*/
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/* Hardware specifics. */
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#define portBYTE_ALIGNMENT                      4
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#define portSTACK_GROWTH                        ( -1 )
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#define portTICK_RATE_MS                        ( ( portTickType ) 1000 / configTICK_RATE_HZ )  
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#define portNOP()       
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/*-----------------------------------------------------------*/
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/* Task function macros as described on the FreeRTOS.org WEB site. */
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#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
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#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
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extern void vTaskSwitchContext( void );
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#define portYIELD_FROM_ISR( x ) if( x ) vPortYield()
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void vApplicationSetupTimerInterrupt( void );
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/* sizeof( int ) != sizeof( long ) so a full printf() library is required if
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run time stats information is to be displayed. */
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#define portLU_PRINTF_SPECIFIER_REQUIRED
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#endif /* PORTMACRO_H */
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