mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-04-24 23:42:10 -04:00
147 lines
4.3 KiB
C
147 lines
4.3 KiB
C
/*
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* FreeRTOS Kernel V10.2.0
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* Copyright (C) 2019 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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/* Scheduler includes. */
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#include "FreeRTOS.h"
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/* Demo application includes. */
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#include "partest.h"
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/* Library includes. */
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#include "xparameters.h"
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#include "xgpio_l.h"
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/* Misc hardware specific definitions. */
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#define partstALL_AS_OUTPUT 0x00
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#define partstCHANNEL_1 0x01
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#define partstMAX_8BIT_LED 0x07
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/* The outputs are split into two IO sections, these variables maintain the
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current value of either section. */
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static unsigned portBASE_TYPE uxCurrentOutput8Bit, uxCurrentOutput5Bit;
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/*-----------------------------------------------------------*/
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/*
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* Setup the IO for the LED outputs.
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*/
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void vParTestInitialise( void )
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{
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/* Set both sets of LED's on the demo board to outputs. */
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XGpio_mSetDataDirection( XPAR_LEDS_8BIT_BASEADDR, partstCHANNEL_1, partstALL_AS_OUTPUT );
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XGpio_mSetDataDirection( XPAR_LEDS_POSITIONS_BASEADDR, partstCHANNEL_1, partstALL_AS_OUTPUT );
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/* Start with all outputs off. */
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uxCurrentOutput8Bit = 0;
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XGpio_mSetDataReg( XPAR_LEDS_8BIT_BASEADDR, partstCHANNEL_1, 0x00 );
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uxCurrentOutput5Bit = 0;
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XGpio_mSetDataReg( XPAR_LEDS_POSITIONS_BASEADDR, partstCHANNEL_1, 0x00 );
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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 uxBaseAddress, *puxCurrentValue;
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portENTER_CRITICAL();
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{
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/* Which IO section does the LED being set/cleared belong to? The
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8 bit or 5 bit outputs? */
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if( uxLED <= partstMAX_8BIT_LED )
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{
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uxBaseAddress = XPAR_LEDS_8BIT_BASEADDR;
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puxCurrentValue = &uxCurrentOutput5Bit;
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}
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else
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{
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uxBaseAddress = XPAR_LEDS_POSITIONS_BASEADDR;
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puxCurrentValue = &uxCurrentOutput8Bit;
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uxLED -= partstMAX_8BIT_LED;
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}
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/* Setup the bit mask accordingly. */
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uxLED = 0x01 << uxLED;
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/* Maintain the current output value. */
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if( xValue )
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{
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*puxCurrentValue |= uxLED;
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}
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else
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{
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*puxCurrentValue &= ~uxLED;
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}
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/* Write the value to the port. */
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XGpio_mSetDataReg( uxBaseAddress, partstCHANNEL_1, *puxCurrentValue );
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}
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portEXIT_CRITICAL();
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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 uxBaseAddress, *puxCurrentValue;
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portENTER_CRITICAL();
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{
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/* Which IO section does the LED being toggled belong to? The
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8 bit or 5 bit outputs? */
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if( uxLED <= partstMAX_8BIT_LED )
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{
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uxBaseAddress = XPAR_LEDS_8BIT_BASEADDR;
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puxCurrentValue = &uxCurrentOutput5Bit;
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}
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else
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{
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uxBaseAddress = XPAR_LEDS_POSITIONS_BASEADDR;
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puxCurrentValue = &uxCurrentOutput8Bit;
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uxLED -= partstMAX_8BIT_LED;
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}
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/* Setup the bit mask accordingly. */
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uxLED = 0x01 << uxLED;
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/* Maintain the current output value. */
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if( *puxCurrentValue & uxLED )
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{
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*puxCurrentValue &= ~uxLED;
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}
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else
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{
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*puxCurrentValue |= uxLED;
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}
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/* Write the value to the port. */
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XGpio_mSetDataReg(uxBaseAddress, partstCHANNEL_1, *puxCurrentValue );
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}
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portEXIT_CRITICAL();
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}
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