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156 lines
5.2 KiB
C
156 lines
5.2 KiB
C
/*
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FreeRTOS.org V4.7.2 - Copyright (C) 2003-2008 Richard Barry.
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This file is part of the FreeRTOS.org distribution.
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FreeRTOS.org is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FreeRTOS.org is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FreeRTOS.org; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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A special exception to the GPL can be applied should you wish to distribute
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a combined work that includes FreeRTOS.org, without being obliged to provide
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the source code for any proprietary components. See the licensing section
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of http://www.FreeRTOS.org for full details of how and when the exception
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can be applied.
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***************************************************************************
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Please ensure to read the configuration and relevant port sections of the
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online documentation.
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+++ http://www.FreeRTOS.org +++
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Documentation, latest information, license and contact details.
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+++ http://www.SafeRTOS.com +++
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A version that is certified for use in safety critical systems.
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+++ http://www.OpenRTOS.com +++
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Commercial support, development, porting, licensing and training services.
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***************************************************************************
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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 4
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#define portYIELD() asm volatile ( "SWI 0" )
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#define portNOP() asm volatile ( "NOP" )
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/*-----------------------------------------------------------*/
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/* Critical section handling. */
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/*
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* The interrupt management utilities can only be called from ARM mode. When
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* THUMB_INTERWORK is defined the utilities are defined as functions in
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* portISR.c to ensure a switch to ARM mode. When THUMB_INTERWORK is not
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* defined then the utilities are defined as macros here - as per other ports.
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*/
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#ifdef THUMB_INTERWORK
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extern void vPortDisableInterruptsFromThumb( void ) __attribute__ ((naked));
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extern void vPortEnableInterruptsFromThumb( void ) __attribute__ ((naked));
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#define portDISABLE_INTERRUPTS() vPortDisableInterruptsFromThumb()
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#define portENABLE_INTERRUPTS() vPortEnableInterruptsFromThumb()
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#else
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#define portDISABLE_INTERRUPTS() \
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asm volatile ( \
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"STMDB SP!, {R0} \n\t" /* Push R0. */ \
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"MRS R0, CPSR \n\t" /* Get CPSR. */ \
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"ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */ \
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"MSR CPSR, R0 \n\t" /* Write back modified value. */ \
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"LDMIA SP!, {R0} " ) /* Pop R0. */
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#define portENABLE_INTERRUPTS() \
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asm volatile ( \
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"STMDB SP!, {R0} \n\t" /* Push R0. */ \
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"MRS R0, CPSR \n\t" /* Get CPSR. */ \
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"BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */ \
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"MSR CPSR, R0 \n\t" /* Write back modified value. */ \
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"LDMIA SP!, {R0} " ) /* Pop R0. */
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#endif /* THUMB_INTERWORK */
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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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/* Task utilities. */
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#define portEND_SWITCHING_ISR( xSwitchRequired ) \
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{ \
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extern void vTaskSwitchContext( void ); \
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\
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if( xSwitchRequired ) \
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{ \
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vTaskSwitchContext(); \
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} \
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}
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/*-----------------------------------------------------------*/
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/* Compiler specifics */
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#define inline
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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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