text: /*
   * FreeRTOS Kernel V10.3.1
   * 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    uint32_t
      #define portBASE_TYPE     long
  
      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
  
  /* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
   * not need to be guarded with a critical section. */
          #define portTICK_TYPE_IS_ATOMIC    1
      #endif
  /*-----------------------------------------------------------*/
  
  /* Architecture specifics. */
      #define portSTACK_GROWTH      ( -1 )
      #define portTICK_PERIOD_MS    ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
  
  /* It can be a multiple of 4, otherwise it will cause MAE (Misaligned Exception)
   * according to the manual. */
      #define portBYTE_ALIGNMENT    4
  /*-----------------------------------------------------------*/
  
  
  /* Scheduler utilities. */
      extern void vPortYield( void );
  
  /* Called at the end of an ISR that can cause a context switch. */
      #define portEND_SWITCHING_ISR( xSwitchRequired )    \
      {                                                   \
          extern volatile BaseType_t xPortSwitchRequired; \
                                                          \
          if( xSwitchRequired != pdFALSE )                \
          {                                               \
              xPortSwitchRequired = pdTRUE;               \
          }                                               \
      }
  
      #define portYIELD_FROM_ISR( x )                     portEND_SWITCHING_ISR( x )
      #define portYIELD()                                 vPortYield()
  /*-----------------------------------------------------------*/
  
  
  /* Critical section management. */
      extern void vTaskEnterCritical( void );
      extern void vTaskExitCritical( void );
  
      #define portSET_INTERRUPT_MASK_FROM_ISR()           __stsr_rh(5, 0); __DI()
      #define portCLEAR_INTERRUPT_MASK_FROM_ISR( x )      __ldsr_rh(5, 0, x)
  
      #define portDISABLE_INTERRUPTS()                    __DI()
      #define portENABLE_INTERRUPTS()                     __EI()
      #define portCRITICAL_NESTING_IN_TCB                 1
      #define portENTER_CRITICAL()                        vTaskEnterCritical()
      #define portEXIT_CRITICAL()                         vTaskExitCritical()
  /*-----------------------------------------------------------*/
  
  /* 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 */
  