/* | |
FreeRTOS V7.0.0 - Copyright (C) 2011 Real Time Engineers Ltd. | |
*************************************************************************** | |
* * | |
* FreeRTOS tutorial books are available in pdf and paperback. * | |
* Complete, revised, and edited pdf reference manuals are also * | |
* available. * | |
* * | |
* Purchasing FreeRTOS documentation will not only help you, by * | |
* ensuring you get running as quickly as possible and with an * | |
* in-depth knowledge of how to use FreeRTOS, it will also help * | |
* the FreeRTOS project to continue with its mission of providing * | |
* 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! * | |
* * | |
*************************************************************************** | |
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 | |
contact details. | |
http://www.SafeRTOS.com - A version that is certified for use in safety | |
critical systems. | |
http://www.OpenRTOS.com - Commercial support, development, porting, | |
licensing and training services. | |
*/ | |
#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 unsigned int | |
#define portBASE_TYPE int | |
#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 | |
/*-----------------------------------------------------------*/ | |
/* Interrupt control macros. */ | |
#define portDISABLE_INTERRUPTS() __asm ( "DI" ) | |
#define portENABLE_INTERRUPTS() __asm ( "EI" ) | |
/*-----------------------------------------------------------*/ | |
/* Critical section control macros. */ | |
#define portNO_CRITICAL_SECTION_NESTING ( ( unsigned portBASE_TYPE ) 0 ) | |
#define portENTER_CRITICAL() \ | |
{ \ | |
extern volatile /*unsigned portSHORT*/ portSTACK_TYPE usCriticalNesting; \ | |
\ | |
portDISABLE_INTERRUPTS(); \ | |
\ | |
/* Now interrupts are disabled ulCriticalNesting can be accessed */ \ | |
/* directly. Increment ulCriticalNesting to keep a count of how many */ \ | |
/* times portENTER_CRITICAL() has been called. */ \ | |
usCriticalNesting++; \ | |
} | |
#define portEXIT_CRITICAL() \ | |
{ \ | |
extern volatile /*unsigned portSHORT*/ portSTACK_TYPE usCriticalNesting; \ | |
\ | |
if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING ) \ | |
{ \ | |
/* Decrement the nesting count as we are leaving a critical section. */ \ | |
usCriticalNesting--; \ | |
\ | |
/* If the nesting level has reached zero then interrupts should be */ \ | |
/* re-enabled. */ \ | |
if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING ) \ | |
{ \ | |
portENABLE_INTERRUPTS(); \ | |
} \ | |
} \ | |
} | |
/*-----------------------------------------------------------*/ | |
/* Task utilities. */ | |
extern void vPortYield( void ); | |
extern void vPortStart( void ); | |
extern void portSAVE_CONTEXT( void ); | |
extern void portRESTORE_CONTEXT( void ); | |
#define portYIELD() __asm ( "trap 0" ) | |
#define portNOP() __asm ( "NOP" ) | |
extern void vTaskSwitchContext( void ); | |
#define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) if( xHigherPriorityTaskWoken ) vTaskSwitchContext() | |
/*-----------------------------------------------------------*/ | |
/* Hardwware specifics. */ | |
#define portBYTE_ALIGNMENT 4 | |
#define portSTACK_GROWTH ( -1 ) | |
#define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ ) | |
/*-----------------------------------------------------------*/ | |
/* 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 ) | |
#ifdef __cplusplus | |
} | |
#endif | |
#endif /* PORTMACRO_H */ | |