/* | |
FreeRTOS.org V5.0.4 - Copyright (C) 2003-2008 Richard Barry. | |
This file is part of the FreeRTOS.org distribution. | |
FreeRTOS.org is free software; you can redistribute it and/or modify | |
it under the terms of the GNU General Public License as published by | |
the Free Software Foundation; either version 2 of the License, or | |
(at your option) any later version. | |
FreeRTOS.org 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.org; if not, write to the Free Software | |
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
A special exception to the GPL can be applied should you wish to distribute | |
a combined work that includes FreeRTOS.org, without being obliged to provide | |
the source code for any proprietary components. See the licensing section | |
of http://www.FreeRTOS.org for full details of how and when the exception | |
can be applied. | |
*************************************************************************** | |
*************************************************************************** | |
* * | |
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, * | |
* and even write all or part of your application on your behalf. * | |
* See http://www.OpenRTOS.com for details of the services we provide to * | |
* expedite your project. * | |
* * | |
*************************************************************************** | |
*************************************************************************** | |
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. | |
*/ | |
/* | |
Changes from V1.01: | |
+ Types used updated. | |
+ Add vParTestToggleLED(); | |
Changes from V2.0.0 | |
+ Use scheduler suspends in place of critical sections. | |
*/ | |
#include "FreeRTOS.h" | |
#include "partest.h" | |
#include "task.h" | |
#define partstALL_OUTPUTS_OFF ( ( unsigned portCHAR ) 0x00 ) | |
#define partstMAX_OUTPUT_LED ( ( unsigned portCHAR ) 7 ) | |
/*lint -e956 File scope parameters okay here. */ | |
static unsigned portSHORT usPortAddress = partstDEFAULT_PORT_ADDRESS; | |
static volatile unsigned portCHAR ucCurrentOutputValue = partstALL_OUTPUTS_OFF; | |
/*lint +e956 */ | |
/*----------------------------------------------------------- | |
* Simple parallel port IO routines | |
*-----------------------------------------------------------*/ | |
void vParTestInitialise( void ) | |
{ | |
ucCurrentOutputValue = partstALL_OUTPUTS_OFF; | |
portOUTPUT_BYTE( usPortAddress, ( unsigned ) partstALL_OUTPUTS_OFF ); | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue ) | |
{ | |
unsigned portCHAR ucBit = ( unsigned portCHAR ) 1; | |
if( uxLED <= partstMAX_OUTPUT_LED ) | |
{ | |
ucBit <<= uxLED; | |
} | |
vTaskSuspendAll(); | |
{ | |
if( xValue == pdTRUE ) | |
{ | |
ucBit ^= ( unsigned portCHAR ) 0xff; | |
ucCurrentOutputValue &= ucBit; | |
} | |
else | |
{ | |
ucCurrentOutputValue |= ucBit; | |
} | |
portOUTPUT_BYTE( usPortAddress, ( unsigned ) ucCurrentOutputValue ); | |
} | |
xTaskResumeAll(); | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestToggleLED( unsigned portBASE_TYPE uxLED ) | |
{ | |
unsigned portCHAR ucBit; | |
if( uxLED <= partstMAX_OUTPUT_LED ) | |
{ | |
ucBit = ( ( unsigned portCHAR ) 1 ) << uxLED; | |
vTaskSuspendAll(); | |
{ | |
if( ucCurrentOutputValue & ucBit ) | |
{ | |
ucCurrentOutputValue &= ~ucBit; | |
} | |
else | |
{ | |
ucCurrentOutputValue |= ucBit; | |
} | |
portOUTPUT_BYTE( usPortAddress, ( unsigned ) ucCurrentOutputValue ); | |
} | |
xTaskResumeAll(); | |
} | |
} | |