mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-05-15 17:49:03 -04:00
116 lines
3.5 KiB
C
116 lines
3.5 KiB
C
/*
|
|
* FreeRTOS Kernel V10.1.0
|
|
* Copyright (C) 2018 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 IO routines to control the LEDs.
|
|
*-----------------------------------------------------------*/
|
|
|
|
/* Scheduler includes. */
|
|
#include "FreeRTOS.h"
|
|
#include "task.h"
|
|
|
|
/* Demo includes. */
|
|
#include "partest.h"
|
|
|
|
/* Xilinx includes. */
|
|
#include "xgpio.h"
|
|
|
|
|
|
#define partstNUM_LEDS 8
|
|
|
|
/*-----------------------------------------------------------*/
|
|
|
|
/* The GPIO instance to which the LEDs are connected. */
|
|
static XGpio xOutputGPIOInstance;
|
|
|
|
/* Maintains the current LED output state. */
|
|
static volatile UBaseType_t uxGPIOState = 0U;
|
|
|
|
/* Constant required by the Xilinx peripheral driver API functions that are
|
|
relevant to the particular hardware set up. */
|
|
static const unsigned long ulGPIOOutputChannel = 1UL;
|
|
|
|
/*-----------------------------------------------------------*/
|
|
|
|
void vParTestInitialise( void )
|
|
{
|
|
portBASE_TYPE xStatus;
|
|
const unsigned char ucSetToOutput = 0U;
|
|
|
|
/* Initialize the GPIO for the LEDs. */
|
|
xStatus = XGpio_Initialize( &xOutputGPIOInstance, XPAR_AXI_GPIO_0_DEVICE_ID );
|
|
if( xStatus == XST_SUCCESS )
|
|
{
|
|
/* All bits on this channel are going to be outputs (LEDs). */
|
|
XGpio_SetDataDirection( &xOutputGPIOInstance, ulGPIOOutputChannel, ucSetToOutput );
|
|
|
|
/* Start with all LEDs off. */
|
|
uxGPIOState = 0U;
|
|
XGpio_DiscreteWrite( &xOutputGPIOInstance, ulGPIOOutputChannel, ( uint8_t ) uxGPIOState );
|
|
}
|
|
|
|
configASSERT( ( xStatus == XST_SUCCESS ) );
|
|
}
|
|
/*-----------------------------------------------------------*/
|
|
|
|
void vParTestSetLED( UBaseType_t uxLED, BaseType_t xValue )
|
|
{
|
|
if( uxLED < partstNUM_LEDS )
|
|
{
|
|
taskENTER_CRITICAL();
|
|
{
|
|
if( xValue != pdFALSE )
|
|
{
|
|
uxGPIOState |= ( 1UL << uxLED );
|
|
}
|
|
else
|
|
{
|
|
uxGPIOState &= ~( 1UL << uxLED );
|
|
}
|
|
|
|
XGpio_DiscreteWrite( &xOutputGPIOInstance, ulGPIOOutputChannel, ( uint8_t ) uxGPIOState );
|
|
}
|
|
taskEXIT_CRITICAL();
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------*/
|
|
|
|
void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
|
|
{
|
|
if( uxLED < partstNUM_LEDS )
|
|
{
|
|
taskENTER_CRITICAL();
|
|
{
|
|
uxGPIOState ^= ( 1UL << uxLED );
|
|
XGpio_DiscreteWrite( &xOutputGPIOInstance, ulGPIOOutputChannel, ( uint8_t ) uxGPIOState );
|
|
}
|
|
taskEXIT_CRITICAL();
|
|
}
|
|
}
|
|
|