Demo/ARM7_STR71x_IAR/ParTest/ParTest.c

/*
    FreeRTOS V6.0.0 - Copyright (C) 2009 Real Time Engineers Ltd.

    This file is part of the FreeRTOS distribution.

    FreeRTOS 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.
    **NOTE** The exception to the GPL is included to allow you to distribute a
    combined work that includes FreeRTOS without being obliged to provide the
    source code for proprietary components outside of the FreeRTOS kernel.
    Alternative commercial license and support terms are also available upon
    request.  See the licensing section of http://www.FreeRTOS.org for full
    license details.

    FreeRTOS 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; if not, write to the Free Software Foundation, Inc., 59
    Temple Place, Suite 330, Boston, MA  02111-1307  USA.


    ***************************************************************************
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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 ) );
}