/* | |
FreeRTOS V5.4.2 - Copyright (C) 2009 Real Time Engineers Ltd. | |
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 a | |
combined work that includes FreeRTOS without being obliged to provide the | |
source code for proprietary components outside of the FreeRTOS kernel. | |
Alternative commercial license and support terms are also available upon | |
request. See the licensing section of http://www.FreeRTOS.org for full | |
license details. | |
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 along | |
with FreeRTOS; if not, write to the Free Software Foundation, Inc., 59 | |
Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
*************************************************************************** | |
* * | |
* Looking for a quick start? Then check out the FreeRTOS eBook! * | |
* See http://www.FreeRTOS.org/Documentation for details * | |
* * | |
*************************************************************************** | |
1 tab == 4 spaces! | |
Please ensure to read the configuration and relevant port sections of the | |
online documentation. | |
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 portLONG | |
#define portBASE_TYPE portLONG | |
#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 | |
/*-----------------------------------------------------------*/ | |
/* Hardware specifics. */ | |
#define portSTACK_GROWTH ( -1 ) | |
#define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ ) | |
#define portBYTE_ALIGNMENT 4 | |
#define portYIELD() asm volatile ( "SWI 0" ) | |
#define portNOP() asm volatile ( "NOP" ) | |
/*-----------------------------------------------------------*/ | |
/* Critical section handling. */ | |
/* | |
* The interrupt management utilities can only be called from ARM mode. When | |
* THUMB_INTERWORK is defined the utilities are defined as functions in | |
* portISR.c to ensure a switch to ARM mode. When THUMB_INTERWORK is not | |
* defined then the utilities are defined as macros here - as per other ports. | |
*/ | |
#ifdef THUMB_INTERWORK | |
extern void vPortDisableInterruptsFromThumb( void ) __attribute__ ((naked)); | |
extern void vPortEnableInterruptsFromThumb( void ) __attribute__ ((naked)); | |
#define portDISABLE_INTERRUPTS() vPortDisableInterruptsFromThumb() | |
#define portENABLE_INTERRUPTS() vPortEnableInterruptsFromThumb() | |
#else | |
#define portDISABLE_INTERRUPTS() \ | |
asm volatile ( \ | |
"STMDB SP!, {R0} \n\t" /* Push R0. */ \ | |
"MRS R0, CPSR \n\t" /* Get CPSR. */ \ | |
"ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */ \ | |
"MSR CPSR, R0 \n\t" /* Write back modified value. */ \ | |
"LDMIA SP!, {R0} " ) /* Pop R0. */ | |
#define portENABLE_INTERRUPTS() \ | |
asm volatile ( \ | |
"STMDB SP!, {R0} \n\t" /* Push R0. */ \ | |
"MRS R0, CPSR \n\t" /* Get CPSR. */ \ | |
"BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */ \ | |
"MSR CPSR, R0 \n\t" /* Write back modified value. */ \ | |
"LDMIA SP!, {R0} " ) /* Pop R0. */ | |
#endif /* THUMB_INTERWORK */ | |
extern void vPortEnterCritical( void ); | |
extern void vPortExitCritical( void ); | |
#define portENTER_CRITICAL() vPortEnterCritical(); | |
#define portEXIT_CRITICAL() vPortExitCritical(); | |
/*-----------------------------------------------------------*/ | |
/* Task utilities. */ | |
#define portEND_SWITCHING_ISR( xSwitchRequired ) \ | |
{ \ | |
extern void vTaskSwitchContext( void ); \ | |
\ | |
if( xSwitchRequired ) \ | |
{ \ | |
vTaskSwitchContext(); \ | |
} \ | |
} | |
/*-----------------------------------------------------------*/ | |
/* 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 */ | |