mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-04-22 06:21:58 -04:00
ab964f3c9d
+ Introduced API function xTaskResumeFromISR(). Same functionality as xTaskResume(), but can be called from within an interrupt service routine. + Optimised vListInsert() in the case when the wake time is the maximum tick count value. + Bug fix: The 'value' of the event list item is updated when the priority of a task is changed. Previously only the priority of the TCB itself was changed. + vTaskPrioritySet() and vTaskResume() no longer use the event list item. This has not been necessary since V4.0.1 when the xMissedYield handling was added. + Lowered the PCLK setting on the ARM9 STR9 demo from 96MHz to 48MHz. + When ending the scheduler - do not try to attempt a context switch when deleting the current task. + SAM7X EMAC drivers: Corrected the Rx frame length mask when obtaining the length from the rx descriptor.
147 lines
4.4 KiB
C
147 lines
4.4 KiB
C
/*
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FreeRTOS.org V4.0.5 - Copyright (C) 2003-2006 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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***************************************************************************
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*/
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/* Scheduler include files. */
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#include "FreeRTOS.h"
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#include "portable.h"
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/* Demo application include files. */
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#include "partest.h"
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/*-----------------------------------------------------------
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* Simple parallel port IO routines.
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*
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* This is for the demo application which uses port 2 for LED outputs.
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*-----------------------------------------------------------*/
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/* Value for the LED to be off. */
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#define partstLED_OUTPUTS ( ( unsigned portCHAR ) 0xff )
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/* P2.0 is not used as an output so there are only 7 LEDs on port 2. */
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#define partstMAX_LEDs ( 7 )
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#define partstALL_OUTPUTS_OFF ( ( unsigned portCHAR ) 0 )
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/* Maps the LED outputs used by the standard demo application files to
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convenient outputs for the EDK2329. Mainly this insures that the LED
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used by the Check task is one of the on board LEDs so the demo can be
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executed on an EDK without any modification. */
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static inline unsigned portCHAR prvMapLED( unsigned portBASE_TYPE uxLED );
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/*-----------------------------------------------------------*/
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void vParTestInitialise( void )
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{
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/* LED's are connected to port 2. P2.1 and P2.2 are built onto the EDK.
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P2.3 to P2.7 are soldered onto the expansion port. */
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P2DDR = partstLED_OUTPUTS;
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P2DR = partstALL_OUTPUTS_OFF;
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}
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/*-----------------------------------------------------------*/
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/*
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* Described at the top of the file.
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*/
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static inline unsigned portCHAR prvMapLED( unsigned portBASE_TYPE uxLED )
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{
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switch( uxLED )
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{
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case 0 : return ( unsigned portCHAR ) 2;
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case 1 : return ( unsigned portCHAR ) 3;
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case 2 : return ( unsigned portCHAR ) 4;
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case 3 : return ( unsigned portCHAR ) 5;
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case 4 : return ( unsigned portCHAR ) 6;
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case 5 : return ( unsigned portCHAR ) 0;
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case 6 : return ( unsigned portCHAR ) 1;
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default : return 0;
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}
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}
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/*-----------------------------------------------------------*/
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/*
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* Turn an LED on or off.
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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 portCHAR ucLED;
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if( uxLED < partstMAX_LEDs )
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{
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ucLED = prvMapLED( uxLED );
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/* Set a bit in the required LED position. LED 0 is bit 1. */
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ucLED = ( unsigned portCHAR ) 1 << ( ucLED + 1 );
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if( xValue )
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{
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portENTER_CRITICAL();
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P2DR |= ucLED;
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portEXIT_CRITICAL();
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}
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else
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{
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portENTER_CRITICAL();
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P2DR &= ~ucLED;
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portEXIT_CRITICAL();
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}
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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 portCHAR ucLED;
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if( uxLED < partstMAX_LEDs )
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{
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ucLED = prvMapLED( uxLED );
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/* Set a bit in the required LED position. LED 0 is bit 1. */
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ucLED = ( unsigned portCHAR ) 1 << ( ucLED + 1 );
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portENTER_CRITICAL();
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{
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if( P2DR & ucLED )
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{
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P2DR &= ~ucLED;
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}
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else
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{
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P2DR |= ucLED;
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}
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}
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portEXIT_CRITICAL();
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}
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}
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