/* | |
FreeRTOS.org V5.2.0 - Copyright (C) 2003-2009 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 (version 2) as published | |
by the Free Software Foundation and modified by the FreeRTOS exception. | |
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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 is included to allow you 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. | |
*************************************************************************** | |
* * | |
* Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation * | |
* * | |
* This is a concise, step by step, 'hands on' guide that describes both * | |
* general multitasking concepts and FreeRTOS specifics. It presents and * | |
* explains numerous examples that are written using the FreeRTOS API. * | |
* Full source code for all the examples is provided in an accompanying * | |
* .zip file. * | |
* * | |
*************************************************************************** | |
1 tab == 4 spaces! | |
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. | |
*/ | |
/* Scheduler includes. */ | |
#include "FreeRTOS.h" | |
/* Demo application includes. */ | |
#include "partest.h" | |
/* Library includes. */ | |
#include "xparameters.h" | |
#include "xgpio_l.h" | |
/* Misc hardware specific definitions. */ | |
#define partstALL_AS_OUTPUT 0x00 | |
#define partstCHANNEL_1 0x01 | |
#define partstMAX_4BIT_LED 0x03 | |
/* The outputs are split into two IO sections, these variables maintain the | |
current value of either section. */ | |
static unsigned portBASE_TYPE uxCurrentOutput4Bit, uxCurrentOutput5Bit; | |
/*-----------------------------------------------------------*/ | |
/* | |
* Setup the IO for the LED outputs. | |
*/ | |
void vParTestInitialise( void ) | |
{ | |
/* Set both sets of LED's on the demo board to outputs. */ | |
XGpio_mSetDataDirection( XPAR_LEDS_4BIT_BASEADDR, partstCHANNEL_1, partstALL_AS_OUTPUT ); | |
XGpio_mSetDataDirection( XPAR_LEDS_POSITIONS_BASEADDR, partstCHANNEL_1, partstALL_AS_OUTPUT ); | |
/* Start with all outputs off. */ | |
uxCurrentOutput4Bit = 0; | |
XGpio_mSetDataReg( XPAR_LEDS_4BIT_BASEADDR, partstCHANNEL_1, 0x00 ); | |
uxCurrentOutput5Bit = 0; | |
XGpio_mSetDataReg( XPAR_LEDS_POSITIONS_BASEADDR, partstCHANNEL_1, 0x00 ); | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue ) | |
{ | |
unsigned portBASE_TYPE uxBaseAddress, *puxCurrentValue; | |
portENTER_CRITICAL(); | |
{ | |
/* Which IO section does the LED being set/cleared belong to? The | |
4 bit or 5 bit outputs? */ | |
if( uxLED <= partstMAX_4BIT_LED ) | |
{ | |
uxBaseAddress = XPAR_LEDS_4BIT_BASEADDR; | |
puxCurrentValue = &uxCurrentOutput5Bit; | |
} | |
else | |
{ | |
uxBaseAddress = XPAR_LEDS_POSITIONS_BASEADDR; | |
puxCurrentValue = &uxCurrentOutput4Bit; | |
uxLED -= partstMAX_4BIT_LED; | |
} | |
/* Setup the bit mask accordingly. */ | |
uxLED = 0x01 << uxLED; | |
/* Maintain the current output value. */ | |
if( xValue ) | |
{ | |
*puxCurrentValue |= uxLED; | |
} | |
else | |
{ | |
*puxCurrentValue &= ~uxLED; | |
} | |
/* Write the value to the port. */ | |
XGpio_mSetDataReg( uxBaseAddress, partstCHANNEL_1, *puxCurrentValue ); | |
} | |
portEXIT_CRITICAL(); | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestToggleLED( unsigned portBASE_TYPE uxLED ) | |
{ | |
unsigned portBASE_TYPE uxBaseAddress, *puxCurrentValue; | |
portENTER_CRITICAL(); | |
{ | |
/* Which IO section does the LED being toggled belong to? The | |
4 bit or 5 bit outputs? */ | |
if( uxLED <= partstMAX_4BIT_LED ) | |
{ | |
uxBaseAddress = XPAR_LEDS_4BIT_BASEADDR; | |
puxCurrentValue = &uxCurrentOutput5Bit; | |
} | |
else | |
{ | |
uxBaseAddress = XPAR_LEDS_POSITIONS_BASEADDR; | |
puxCurrentValue = &uxCurrentOutput4Bit; | |
uxLED -= partstMAX_4BIT_LED; | |
} | |
/* Setup the bit mask accordingly. */ | |
uxLED = 0x01 << uxLED; | |
/* Maintain the current output value. */ | |
if( *puxCurrentValue & uxLED ) | |
{ | |
*puxCurrentValue &= ~uxLED; | |
} | |
else | |
{ | |
*puxCurrentValue |= uxLED; | |
} | |
/* Write the value to the port. */ | |
XGpio_mSetDataReg(uxBaseAddress, partstCHANNEL_1, *puxCurrentValue ); | |
} | |
portEXIT_CRITICAL(); | |
} | |