text: /*
   * FreeRTOS Kernel V10.4.1
   * Copyright (C) 2020 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 parallel port IO routines.
   *-----------------------------------------------------------*/
  
  /* Kernel includes. */
  #include "FreeRTOS.h"
  #include "task.h"
  
  /* Library includes. */
  #include "mss_gpio.h"
  
  #define partstMAX_LEDS		8
  
  static volatile unsigned long ulGPIOState = 0UL;
  
  /*-----------------------------------------------------------*/
  
  void vParTestInitialise( void )
  {
  long x;
  
  	/* Initialise the GPIO */
  	MSS_GPIO_init();
  
  	/* Set up GPIO for the LEDs. */
  	for( x = 0; x < partstMAX_LEDS; x++ )
  	{
  		MSS_GPIO_config( ( mss_gpio_id_t ) x , MSS_GPIO_OUTPUT_MODE );
  	}
  
  	/* All LEDs start off. */
  	ulGPIOState = 0xffffffffUL;
  	MSS_GPIO_set_outputs( ulGPIOState );
  }
  /*-----------------------------------------------------------*/
  
  void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
  {
  	if( uxLED < partstMAX_LEDS )
  	{
  		/* A critical section is used as the LEDs are also accessed from an
  		interrupt. */
  		taskENTER_CRITICAL();
  		{
  			if( xValue == pdTRUE )
  			{
  				ulGPIOState &= ~( 1UL << uxLED );
  			}
  			else
  			{
  				ulGPIOState |= ( 1UL << uxLED );
  			}
  			
  			MSS_GPIO_set_outputs( ulGPIOState );
  		}
  		taskEXIT_CRITICAL();
  	}
  }
  /*-----------------------------------------------------------*/
  
  void vParTestSetLEDFromISR( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
  {
  unsigned portBASE_TYPE uxInterruptFlags;
  
  	uxInterruptFlags = portSET_INTERRUPT_MASK_FROM_ISR();
  	{
  		if( uxLED < partstMAX_LEDS )
  		{
  			if( xValue == pdTRUE )
  			{
  				ulGPIOState &= ~( 1UL << uxLED );
  			}
  			else
  			{
  				ulGPIOState |= ( 1UL << uxLED );
  			}
  
  			MSS_GPIO_set_outputs( ulGPIOState );
  		}
  	}
  	portCLEAR_INTERRUPT_MASK_FROM_ISR( uxInterruptFlags );
  }
  /*-----------------------------------------------------------*/
  
  void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
  {
  	if( uxLED < partstMAX_LEDS )
  	{
  		/* A critical section is used as the LEDs are also accessed from an
  		interrupt. */
  		taskENTER_CRITICAL();
  		{
  			if( ( ulGPIOState & ( 1UL << uxLED ) ) != 0UL )
  			{
  				ulGPIOState &= ~( 1UL << uxLED );
  			}
  			else
  			{
  				ulGPIOState |= ( 1UL << uxLED );
  			}
  			
  			MSS_GPIO_set_outputs( ulGPIOState );
  		}
  		taskEXIT_CRITICAL();
  	}
  }
  /*-----------------------------------------------------------*/
  
  long lParTestGetLEDState( unsigned long ulLED )
  {
  long lReturn = pdFALSE;
  
  	if( ulLED < partstMAX_LEDS )
  	{
  		taskENTER_CRITICAL();
  		{
  			if( ( ulGPIOState & ( 1UL << ulLED ) ) == 0UL )
  			{
  				lReturn = pdTRUE;
  			}
  		}
  		taskEXIT_CRITICAL();
  	}
  
  	return lReturn;
  }
  /*-----------------------------------------------------------*/
  