0a9c978f18
+ Changed the method used to force a context switch within an ISR for the ARM7/9 GCC ports only. The portENTER_SWITCHING_ISR() and portEXIT_SWITCHING_ISR() macros are no longer supported. This is to ensure correct behaviour no matter which GCC version is used, with or without the -fomit-frame-pointer option, and at all optimisation levels. + Corrected the prototype for xQueueGenericSend() within queue.h.
117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
/*
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FreeRTOS.org V4.6.0 - Copyright (C) 2003-2007 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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See http://www.FreeRTOS.org for documentation, latest information, license
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and contact details. Please ensure to read the configuration and relevant
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port sections of the online documentation.
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Also see http://www.SafeRTOS.com for an IEC 61508 compliant version along
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with commercial development and support options.
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***************************************************************************
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*/
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/* Scheduler includes. */
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#include "FreeRTOS.h"
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/* Demo app includes. */
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#include "partest.h"
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#define ptOUTPUT 0
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#define ptALL_OFF 0
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unsigned portBASE_TYPE uxOutput;
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/*-----------------------------------------------------------
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* Simple parallel port IO routines.
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*-----------------------------------------------------------*/
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void vParTestInitialise( void )
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{
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/* The explorer 16 board has LED's on port A. All bits are set as output
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so PORTA is read-modified-written directly. Two pins have change
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notification pullups that need disabling. */
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CNPU2bits.CN22PUE = 0;
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CNPU2bits.CN23PUE = 0;
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TRISA = ptOUTPUT;
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PORTA = ptALL_OFF;
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uxOutput = ptALL_OFF;
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}
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/*-----------------------------------------------------------*/
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void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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{
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unsigned portBASE_TYPE uxLEDBit;
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/* Which port A bit is being modified? */
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uxLEDBit = 1 << uxLED;
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if( xValue )
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{
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/* Turn the LED on. */
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portENTER_CRITICAL();
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{
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uxOutput |= uxLEDBit;
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PORTA = uxOutput;
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}
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portEXIT_CRITICAL();
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}
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else
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{
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/* Turn the LED off. */
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portENTER_CRITICAL();
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{
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uxOutput &= ~uxLEDBit;
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PORTA = uxOutput;
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}
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portEXIT_CRITICAL();
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}
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}
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/*-----------------------------------------------------------*/
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void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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{
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unsigned portBASE_TYPE uxLEDBit;
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uxLEDBit = 1 << uxLED;
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portENTER_CRITICAL();
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{
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/* If the LED is already on - turn it off. If the LED is already
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off, turn it on. */
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if( uxOutput & uxLEDBit )
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{
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uxOutput &= ~uxLEDBit;
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PORTA = uxOutput;
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}
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else
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{
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uxOutput |= uxLEDBit;
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PORTA = uxOutput;
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}
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}
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portEXIT_CRITICAL();
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}
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