/* | |
FreeRTOS V6.0.2 - Copyright (C) 2009 Real Time Engineers Ltd. | |
*************************************************************************** | |
* * | |
* If you are: * | |
* * | |
* + New to FreeRTOS, * | |
* + Wanting to learn FreeRTOS or multitasking in general quickly * | |
* + Looking for basic training, * | |
* + Wanting to improve your FreeRTOS skills and productivity * | |
* * | |
* then take a look at the FreeRTOS eBook * | |
* * | |
* "Using the FreeRTOS Real Time Kernel - a Practical Guide" * | |
* http://www.FreeRTOS.org/Documentation * | |
* * | |
* A pdf reference manual is also available. Both are usually delivered * | |
* to your inbox within 20 minutes to two hours when purchased between 8am * | |
* and 8pm GMT (although please allow up to 24 hours in case of * | |
* exceptional circumstances). 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 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. | |
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 | |
#include <machine.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 - these are a bit legacy and not really used now, other than | |
portSTACK_TYPE and portBASE_TYPE. */ | |
#define portCHAR char | |
#define portFLOAT float | |
#define portDOUBLE double | |
#define portLONG long | |
#define portSHORT short | |
#define portSTACK_TYPE unsigned portLONG | |
#define portBASE_TYPE long | |
#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 portBYTE_ALIGNMENT 8 | |
#define portSTACK_GROWTH -1 | |
#define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ ) | |
#define portNOP() nop() | |
#define portSTART_SCHEDULER_TRAP_NO ( 32 ) | |
#define portYIELD_TRAP_NO ( 33 ) | |
#define portKERNEL_INTERRUPT_PRIORITY ( 1 ) | |
void vPortYield( void ); | |
#define portYIELD() vPortYield() | |
extern void vTaskSwitchContext( void ); | |
#define portYIELD_FROM_ISR( x ) if( x != pdFALSE ) vTaskSwitchContext() | |
/* | |
* This function tells the kernel that the task referenced by xTask is going to | |
* use the floating point registers and therefore requires the floating point | |
* registers saved as part of its context. | |
*/ | |
portBASE_TYPE xPortUsesFloatingPoint( void* xTask ); | |
/* | |
* The flop save and restore functions are defined in portasm.src and called by | |
* the trace "task switched in" and "trace task switched out" macros. | |
*/ | |
void vPortSaveFlopRegisters( void *pulBuffer ); | |
void vPortRestoreFlopRegisters( void *pulBuffer ); | |
/* | |
* pxTaskTag is used to point to the buffer into which the floating point | |
* context should be saved. If pxTaskTag is NULL then the task does not use | |
* a floating point context. | |
*/ | |
#define traceTASK_SWITCHED_OUT() if( pxCurrentTCB->pxTaskTag != NULL ) vPortSaveFlopRegisters( pxCurrentTCB->pxTaskTag ) | |
#define traceTASK_SWITCHED_IN() if( pxCurrentTCB->pxTaskTag != NULL ) vPortRestoreFlopRegisters( pxCurrentTCB->pxTaskTag ) | |
/* | |
* These macros should be called directly, but through the taskENTER_CRITICAL() | |
* and taskEXIT_CRITICAL() macros. | |
*/ | |
#define portENABLE_INTERRUPTS() set_imask( 0x00 ) | |
#define portDISABLE_INTERRUPTS() set_imask( portKERNEL_INTERRUPT_PRIORITY ) | |
/* Critical nesting counts are stored in the TCB. */ | |
#define portCRITICAL_NESTING_IN_TCB ( 1 ) | |
/* The critical nesting functions defined within tasks.c. */ | |
extern void vTaskEnterCritical( void ); | |
extern void vTaskExitCritical( void ); | |
#define portENTER_CRITICAL() vTaskEnterCritical(); | |
#define portEXIT_CRITICAL() vTaskExitCritical(); | |
/*-----------------------------------------------------------*/ | |
/* 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 */ | |