FreeRTOS/Demo/CORTEX_STM32F107_GCC_Rowley/ParTest/ParTest.c

/*
 * FreeRTOS Kernel V10.0.1
 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * http://www.FreeRTOS.org
 * http://aws.amazon.com/freertos
 *
 * 1 tab == 4 spaces!
 */

/*-----------------------------------------------------------
 * Simple parallel port IO routines.
 *-----------------------------------------------------------*/

/* FreeRTOS.org includes. */
#include "FreeRTOS.h"
#include "task.h"
#include "partest.h"

/* Standard includes. */
#include <string.h>

/* Library includes. */
#include "stm32f10x_lib.h"

#define partstNUM_LEDs		4

/* Holds the current output state for each of the LEDs. */
static unsigned char ucBitStates[ partstNUM_LEDs ];

/* Holds the port used by each of the LEDs. */
static GPIO_TypeDef * uxIO_Port[ partstNUM_LEDs ];

/* Holds the pin used by each of the LEDs. */
static const unsigned short uxIO_Pins[ partstNUM_LEDs ] = { GPIO_Pin_14, GPIO_Pin_13, GPIO_Pin_3, GPIO_Pin_4 };

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

void vParTestInitialise( void )
{
GPIO_InitTypeDef GPIO_InitStructure;

	/* Configure PE14, PD13, PD3 and PD4 output push-pull */
	GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_14;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init( GPIOE, &GPIO_InitStructure );

	GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_13;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init( GPIOD, &GPIO_InitStructure );

	GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_3 | GPIO_Pin_4;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init( GPIOD, &GPIO_InitStructure );

	memset( ucBitStates, 0x00, sizeof( ucBitStates ) );

	uxIO_Port[ 0 ] =  GPIOE;
    uxIO_Port[ 1 ] =  GPIOD;
    uxIO_Port[ 2 ] =  GPIOD;
    uxIO_Port[ 3 ] =  GPIOD;
}
/*-----------------------------------------------------------*/

void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
{
	if( uxLED < partstNUM_LEDs )
	{
		portENTER_CRITICAL();
		{
			if( xValue != pdFALSE )
			{
				ucBitStates[ uxLED ] = pdTRUE;
			}
			else
			{
				ucBitStates[ uxLED ] = pdFALSE;
			}

            GPIO_WriteBit( uxIO_Port[ uxLED ], uxIO_Pins[ uxLED ], ucBitStates[ uxLED ] );
		}
		portEXIT_CRITICAL();
	}
}
/*-----------------------------------------------------------*/

void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
{
	if( uxLED < partstNUM_LEDs )
	{
		portENTER_CRITICAL();
		{
			ucBitStates[ uxLED ] = !ucBitStates[ uxLED ];
            GPIO_WriteBit( uxIO_Port[ uxLED ], uxIO_Pins[ uxLED ], ucBitStates[ uxLED ] );
		}
		portEXIT_CRITICAL();
	}
}
/*-----------------------------------------------------------*/

portBASE_TYPE xGetLEDState( unsigned portBASE_TYPE uxLED )
{
	if( uxLED < partstNUM_LEDs )
	{
		return ( portBASE_TYPE ) ucBitStates[ uxLED ];
	}
	else
	{
		return 0;
	}
}