Demo/ARM7_STR71x_IAR/ParTest/ParTest.c

/*
	FreeRTOS.org V4.7.1 - Copyright (C) 2003-2008 Richard Barry.

	This file is part of the FreeRTOS.org distribution.

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	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
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	***************************************************************************

	Please ensure to read the configuration and relevant port sections of the 
	online documentation.

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*/

/* Library includes. */
#include "GPIO.h"

/* Scheduler includes. */
#include "FreeRTOS.h"

/* Demo application includes. */
#include "partest.h"

/*-----------------------------------------------------------
 * Simple parallel port IO routines for the LED's - which are
 * connected to the second nibble of GPIO port 1.
 *-----------------------------------------------------------*/

#define partstLED_3		0x0080
#define partstLED_2		0x0040
#define partstLED_1		0x0020
#define partstLED_0		0x0010
#define partstON_BOARD	0x0100	/* The LED built onto the KickStart board. */

#define partstALL_LEDs	( partstLED_0 | partstLED_1 | partstLED_2 | partstLED_3 | partstON_BOARD )

#define partstFIRST_LED_BIT 4

/* This demo application uses files that are common to all port demo 
applications.  These files assume 6 LED's are available, whereas I have
only 5 (including the LED built onto the development board).  To prevent
two tasks trying to use the same LED a bit of remapping is performed. 
The ComTest tasks will try and use LED's 6 and 7.  LED 6 is ignored and
has no effect, LED 7 is mapped to LED3.   The LED usage is described in
the port documentation available from the FreeRTOS.org WEB site. */
#define partstCOM_TEST_LED	7
#define partstRX_CHAR_LED	3

/*-----------------------------------------------------------*/

void vParTestInitialise( void )
{	
    /* Configure the bits used to flash LED's on port 1 as output. */
    GPIO_Config(GPIO1, partstALL_LEDs, GPIO_OUT_OD);
}
/*-----------------------------------------------------------*/

void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
{
	if( uxLED == partstCOM_TEST_LED )
	{
		/* Remap as described above. */
		uxLED = partstRX_CHAR_LED;
	}

	/* Adjust the LED value to map to the port pins actually being used,
	then write the required value to the port. */
	uxLED += partstFIRST_LED_BIT;
    GPIO_BitWrite( GPIO1, uxLED, !xValue );
}
/*-----------------------------------------------------------*/

void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
{
	if( uxLED == partstCOM_TEST_LED )
	{
		/* Remap as described above. */
		uxLED = partstRX_CHAR_LED;
	}

	/* Adjust the LED value to map to the port pins actually being used,
	then write the opposite value to the current state to the port pin. */
	uxLED += partstFIRST_LED_BIT;
    GPIO_BitWrite(GPIO1, uxLED, ~GPIO_BitRead( GPIO1, uxLED ) );
}