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.
   *
   * https://www.FreeRTOS.org
   * https://github.com/FreeRTOS
   *
   * 1 tab == 4 spaces!
   */
  
  #ifndef PORTMACRO_H
  #define PORTMACRO_H
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /*-----------------------------------------------------------
   * Port specific definitions.
   *
   * The settings in this file configure FreeRTOS correctly for the
   * given hardware and compiler.
   *
   * These settings should not be altered.
   *-----------------------------------------------------------
   */
  
  /* Type definitions. */
  #define portCHAR        char
  #define portFLOAT       float
  #define portDOUBLE      double
  #define portLONG        long
  #define portSHORT       short
  #define portSTACK_TYPE  unsigned int
  #define portBASE_TYPE   int
  
  typedef portSTACK_TYPE StackType_t;
  typedef long BaseType_t;
  typedef unsigned long UBaseType_t;
  
  
  #if (configUSE_16_BIT_TICKS==1)
  	typedef uint16_t TickType_t;
  	#define portMAX_DELAY ( TickType_t ) 0xffff
  #else
  	typedef uint32_t TickType_t;
  	#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
  #endif
  /*-----------------------------------------------------------*/
  
  /* Interrupt control macros. */
  //#define portDISABLE_INTERRUPTS() __asm ( "DI" )
  //#define portENABLE_INTERRUPTS()	 __asm ( "EI" )
  
  #define portDISABLE_INTERRUPTS() __DI()
  #define portENABLE_INTERRUPTS()     __EI()
  
  /*-----------------------------------------------------------*/
  
  /* Critical section control macros. */
  #define portNO_CRITICAL_SECTION_NESTING		( ( UBaseType_t ) 0 )
  
  #define portENTER_CRITICAL()														\
  {																					\
  extern volatile /*uint16_t*/ portSTACK_TYPE usCriticalNesting;						\
  																					\
  	portDISABLE_INTERRUPTS();														\
  																					\
  	/* Now interrupts are disabled ulCriticalNesting can be accessed */				\
  	/* directly.  Increment ulCriticalNesting to keep a count of how many */		\
  	/* times portENTER_CRITICAL() has been called. */								\
  	usCriticalNesting++;															\
  }
  
  #define portEXIT_CRITICAL()															\
  {																					\
  extern volatile /*uint16_t*/ portSTACK_TYPE usCriticalNesting;						\
  																					\
  	if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING )						\
  	{																				\
  		/* Decrement the nesting count as we are leaving a critical section. */		\
  		usCriticalNesting--;														\
  																					\
  		/* If the nesting level has reached zero then interrupts should be */		\
  		/* re-enabled. */															\
  		if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING )					\
  		{																			\
  			portENABLE_INTERRUPTS();												\
  		}																			\
  	}																				\
  }
  /*-----------------------------------------------------------*/
  
  /* Task utilities. */
  extern void vPortYield( void );
  extern void vPortStart( void );
  extern void portSAVE_CONTEXT( void );
  extern void portRESTORE_CONTEXT( void );
  #define portYIELD()	__asm ( "trap 0" )
  #define portNOP()	__NOP();//__asm ( "NOP" )
  //#define portYIELD()    trap_set()
  //#define portNOP()    (__nop())
  
  extern void vTaskSwitchContext( void );
  #define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) if( xHigherPriorityTaskWoken ) vTaskSwitchContext()
  
  /*-----------------------------------------------------------*/
  
  /* Hardwware specifics. */
  #define portBYTE_ALIGNMENT	4
  #define portSTACK_GROWTH	( -1 )
  #define portTICK_PERIOD_MS	( ( TickType_t ) 1000 / configTICK_RATE_HZ )
  /*-----------------------------------------------------------*/
  
  /* Task function macros as described on the FreeRTOS.org WEB site. */
  #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
  #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
  
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* PORTMACRO_H */
  
  