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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Source/] [portable/] [RVDS/] [ARM7_LPC21xx/] [portmacro.h] - Blame information for rev 820

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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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#ifdef __cplusplus
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extern "C" {
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#endif
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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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/* 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               short
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#define portSTACK_TYPE  unsigned portLONG
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#define portBASE_TYPE   portLONG
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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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/* Hardware specifics. */
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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 portBYTE_ALIGNMENT                      8
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/*-----------------------------------------------------------*/
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/* Task utilities. */
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/*-----------------------------------------------------------
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 * ISR entry and exit macros.  These are only required if a task switch
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 * is required from an ISR.
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 *----------------------------------------------------------*/
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/* If a switch is required then we just need to call */
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/* vTaskSwitchContext() as the context has already been */
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/* saved. */
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#define portEXIT_SWITCHING_ISR(SwitchRequired)                           \
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{                                                                                                                        \
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extern void vTaskSwitchContext(void);                                            \
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                                                                                                                         \
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                if(SwitchRequired)                                                                       \
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                {                                                                                                        \
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                        vTaskSwitchContext();                                                    \
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                }                                                                                                        \
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}                                                                                                                        \
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extern void vPortYield( void );
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#define portYIELD() vPortYield()
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/* Critical section management. */
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/*
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 ******************************************************************
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 * We don't need to worry about whether we're in ARM or
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 * THUMB mode with the Keil Real View compiler when enabling
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 * or disabling interrupts as the compiler's intrinsic functions
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 * take care of that for us.
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 *******************************************************************
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 */
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#define portDISABLE_INTERRUPTS()        __disable_irq()                                 
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#define portENABLE_INTERRUPTS()         __enable_irq()
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/*-----------------------------------------------------------
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 * Critical section control
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 *
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 * The code generated by the Keil compiler does not maintain separate
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 * stack and frame pointers. The portENTER_CRITICAL macro cannot therefore
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 * use the stack as per other ports.  Instead a variable is used to keep
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 * track of the critical section nesting.  This necessitates the use of a
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 * function in place of the macro.
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 *----------------------------------------------------------*/
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extern void vPortEnterCritical( void );
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extern void vPortExitCritical( void );
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#define portENTER_CRITICAL()            vPortEnterCritical();
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#define portEXIT_CRITICAL()                     vPortExitCritical();
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/*-----------------------------------------------------------*/
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/* Compiler specifics. */
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#define inline
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#define register
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#define portNOP()       __asm{ NOP }
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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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#ifdef __cplusplus
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}
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#endif
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#endif /* PORTMACRO_H */
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