text: /*
   * FreeRTOS Kernel V10.4.3
   * 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
  
  /* IAR includes. */
  #ifdef __ICCARM__
  
  	#include <intrinsics.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;
  
  	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
  
  	/*-----------------------------------------------------------*/
  
  	/* Hardware specifics. */
  	#define portSTACK_GROWTH			( -1 )
  	#define portTICK_PERIOD_MS			( ( TickType_t ) 1000 / configTICK_RATE_HZ )
  	#define portBYTE_ALIGNMENT			8
  
  	/*-----------------------------------------------------------*/
  
  	/* Task utilities. */
  
  	/* Called at the end of an ISR that can cause a context switch. */
  	#define portEND_SWITCHING_ISR( xSwitchRequired )\
  	{												\
  	extern uint32_t ulPortYieldRequired;			\
  													\
  		if( xSwitchRequired != pdFALSE )			\
  		{											\
  			ulPortYieldRequired = pdTRUE;			\
  		}											\
  	}
  
  	#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
  	#define portYIELD() __asm volatile ( "SWI 0" ); __ISB()
  
  
  	/*-----------------------------------------------------------
  	 * Critical section control
  	 *----------------------------------------------------------*/
  
  	extern void vPortEnterCritical( void );
  	extern void vPortExitCritical( void );
  	extern uint32_t ulPortSetInterruptMask( void );
  	extern void vPortClearInterruptMask( uint32_t ulNewMaskValue );
  
  	#define portENTER_CRITICAL()		vPortEnterCritical();
  	#define portEXIT_CRITICAL()			vPortExitCritical();
  	#define portDISABLE_INTERRUPTS()	__disable_irq(); __DSB(); __ISB() /* No priority mask register so global disable is used. */
  	#define portENABLE_INTERRUPTS()		__enable_irq()
  	#define portSET_INTERRUPT_MASK_FROM_ISR()		__get_interrupt_state(); __disable_irq() /* No priority mask register so global disable is used. */
  	#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x)	__set_interrupt_state(x)
  
  	/*-----------------------------------------------------------*/
  
  	/* Task function macros as described on the FreeRTOS.org WEB site.  These are
  	not required for this port but included in case common demo code that uses these
  	macros is used. */
  	#define portTASK_FUNCTION_PROTO( vFunction, pvParameters )	void vFunction( void *pvParameters )
  	#define portTASK_FUNCTION( vFunction, pvParameters )	void vFunction( void *pvParameters )
  
  	/* Prototype of the FreeRTOS tick handler.  This must be installed as the
  	handler for whichever peripheral is used to generate the RTOS tick. */
  	void FreeRTOS_Tick_Handler( void );
  
  	/* Any task that uses the floating point unit MUST call vPortTaskUsesFPU()
  	before any floating point instructions are executed. */
  	void vPortTaskUsesFPU( void );
  	#define portTASK_USES_FLOATING_POINT() vPortTaskUsesFPU()
  
  	/* Architecture specific optimisations. */
  	#ifndef configUSE_PORT_OPTIMISED_TASK_SELECTION
  		#define configUSE_PORT_OPTIMISED_TASK_SELECTION 1
  	#endif
  
  	#if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1
  
  		/* Store/clear the ready priorities in a bit map. */
  		#define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( 1UL << ( uxPriority ) )
  		#define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( 1UL << ( uxPriority ) )
  
  		/*-----------------------------------------------------------*/
  
  		#define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31 - __CLZ( uxReadyPriorities ) )
  
  	#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */
  
  	#define portNOP() __asm volatile( "NOP" )
  
  
  	#ifdef __cplusplus
  		} /* extern C */
  	#endif
  
  	/* Suppress warnings that are generated by the IAR tools, but cannot be
  	fixed in the source code because to do so would cause other compilers to
  	generate warnings. */
  	#pragma diag_suppress=Pe191
  	#pragma diag_suppress=Pa082
  
  #endif /* __ICCARM__ */
  
  #endif /* PORTMACRO_H */
  
  