/* | |
* FreeRTOS Kernel V10.1.1 | |
* 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(); | |
} | |
} | |