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The line 'Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.'
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114 lines
3.6 KiB
C
114 lines
3.6 KiB
C
/*
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* FreeRTOS V202212.00
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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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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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*/
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/* Scheduler includes. */
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#include "FreeRTOS.h"
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#include "portable.h"
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/* Demo app includes. */
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#include "partest.h"
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/* Hardware specific definitions. */
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#include "AT91R40008.h"
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#include "pio.h"
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#include "aic.h"
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#define partstNUM_LEDS ( 8 )
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#define partstALL_OUTPUTS_OFF ( ( unsigned long ) ~(0xFFFFFFFF << partstNUM_LEDS) )
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static unsigned long ulLEDReg;
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/*-----------------------------------------------------------
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* Simple parallel port IO routines.
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*-----------------------------------------------------------*/
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static void SetLeds (unsigned int leds)
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{
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unsigned long ulPIOSetReg, ulPIOClearReg;
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/* LEDs are grouped in different port bits: P3-P6 and P16-P19.
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A port bit set to '0' turns an LED on, '1' turns it off. */
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ulPIOSetReg = ( (leds & 0xF) << 16 ) | ( (leds & 0xF0) >> 1 );
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ulPIOClearReg = (~ulPIOSetReg) & 0x000F0078;
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AT91C_BASE_PIO->PIO_SODR = ulPIOSetReg;
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AT91C_BASE_PIO->PIO_CODR = ulPIOClearReg;
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}
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/*-----------------------------------------------------------*/
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void vParTestInitialise( void )
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{
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/* This is performed from main() as the io bits are shared with other setup
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functions. Ensure the outputs are off to start. */
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ulLEDReg = partstALL_OUTPUTS_OFF;
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/* Enable clock to PIO... */
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AT91C_BASE_PS->PS_PCER = AT91C_PS_PIO;
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/* Enable all 8 LEDs and the four switches to be controlled by PIO... */
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AT91C_BASE_PIO->PIO_PER = P3 | P4 | P5 | P6 | P16 | P17 | P18 | P19 | P1 | P2 | P9 | P12;
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/* Configure all LED PIO lines for output... */
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AT91C_BASE_PIO->PIO_OER = P3 | P4 | P5 | P6 | P16 | P17 | P18 | P19;
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/* Configure all switch PIO lines for input... */
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AT91C_BASE_PIO->PIO_ODR = P1 | P2 | P9 | P12;
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/* Set initial state of LEDs. */
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SetLeds( ulLEDReg );
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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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/* Switch an LED on or off as requested. */
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if (uxLED < partstNUM_LEDS)
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{
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if( xValue )
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{
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ulLEDReg &= ~(1 << uxLED);
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}
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else
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{
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ulLEDReg |= (1 << uxLED);
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}
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SetLeds( ulLEDReg );
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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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/* Toggle the state of the requested LED. */
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if (uxLED < partstNUM_LEDS)
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{
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ulLEDReg ^= ( 1 << uxLED );
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SetLeds( ulLEDReg );
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}
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}
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