mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-10-29 00:36:16 -04:00
111 lines
3 KiB
C
111 lines
3 KiB
C
/*
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* FreeRTOS V202107.00
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* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* http://www.FreeRTOS.org
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* http://aws.amazon.com/freertos
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*
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* 1 tab == 4 spaces!
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*/
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/*
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Changes from V2.5.2
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+ All LED's are turned off to start.
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*/
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#include "FreeRTOS.h"
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#include "task.h"
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#include "partest.h"
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#define partstNUM_LEDs 4
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/*-----------------------------------------------------------
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* Simple parallel port IO routines.
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*-----------------------------------------------------------*/
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void vParTestInitialise( void )
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{
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/* Enable signals as GPIO */
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MCF_GPIO_PTCPAR = 0
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| MCF_GPIO_PTCPAR_DTIN3_GPIO
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| MCF_GPIO_PTCPAR_DTIN2_GPIO
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| MCF_GPIO_PTCPAR_DTIN1_GPIO
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| MCF_GPIO_PTCPAR_DTIN0_GPIO;
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/* Enable signals as digital outputs */
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MCF_GPIO_DDRTC = 0
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| MCF_GPIO_DDRTC_DDRTC3
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| MCF_GPIO_DDRTC_DDRTC2
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| MCF_GPIO_DDRTC_DDRTC1
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| MCF_GPIO_DDRTC_DDRTC0;
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MCF_GPIO_PORTTC = 0x00; // TURN LEDS OFF
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}
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/*-----------------------------------------------------------*/
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void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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{
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unsigned portBASE_TYPE uxLEDMask;
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if( uxLED < partstNUM_LEDs )
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{
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uxLEDMask = 1UL << uxLED;
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taskENTER_CRITICAL();
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{
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if( xValue )
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{
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MCF_GPIO_PORTTC |= uxLEDMask;
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}
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else
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{
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MCF_GPIO_PORTTC &= ~uxLEDMask;
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}
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}
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taskEXIT_CRITICAL();
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}
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}
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/*-----------------------------------------------------------*/
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void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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{
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unsigned portBASE_TYPE uxLEDMask;
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if( uxLED < partstNUM_LEDs )
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{
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uxLEDMask = 1UL << uxLED;
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taskENTER_CRITICAL();
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{
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if( MCF_GPIO_PORTTC & uxLEDMask )
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{
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MCF_GPIO_PORTTC &= ~uxLEDMask;
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}
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else
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{
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MCF_GPIO_PORTTC |= uxLEDMask;
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}
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}
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taskEXIT_CRITICAL();
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}
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}
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