/* | |
FreeRTOS V9.0.1 - Copyright (C) 2017 Real Time Engineers Ltd. | |
All rights reserved | |
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. | |
This file is part of the FreeRTOS distribution. | |
FreeRTOS is free software; you can redistribute it and/or modify it under | |
the terms of the GNU General Public License (version 2) as published by the | |
Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception. | |
*************************************************************************** | |
>>! NOTE: The modification to the GPL is included to allow you to !<< | |
>>! distribute a combined work that includes FreeRTOS without being !<< | |
>>! obliged to provide the source code for proprietary components !<< | |
>>! outside of the FreeRTOS kernel. !<< | |
*************************************************************************** | |
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY | |
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
FOR A PARTICULAR PURPOSE. Full license text is available on the following | |
link: http://www.freertos.org/a00114.html | |
*************************************************************************** | |
* * | |
* FreeRTOS provides completely free yet professionally developed, * | |
* robust, strictly quality controlled, supported, and cross * | |
* platform software that is more than just the market leader, it * | |
* is the industry's de facto standard. * | |
* * | |
* Help yourself get started quickly while simultaneously helping * | |
* to support the FreeRTOS project by purchasing a FreeRTOS * | |
* tutorial book, reference manual, or both: * | |
* http://www.FreeRTOS.org/Documentation * | |
* * | |
*************************************************************************** | |
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading | |
the FAQ page "My application does not run, what could be wrong?". Have you | |
defined configASSERT()? | |
http://www.FreeRTOS.org/support - In return for receiving this top quality | |
embedded software for free we request you assist our global community by | |
participating in the support forum. | |
http://www.FreeRTOS.org/training - Investing in training allows your team to | |
be as productive as possible as early as possible. Now you can receive | |
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers | |
Ltd, and the world's leading authority on the world's leading RTOS. | |
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, | |
including FreeRTOS+Trace - an indispensable productivity tool, a DOS | |
compatible FAT file system, and our tiny thread aware UDP/IP stack. | |
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. | |
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. | |
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High | |
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS | |
licenses offer ticketed support, indemnification and commercial middleware. | |
http://www.SafeRTOS.com - High Integrity Systems also provide a safety | |
engineered and independently SIL3 certified version for use in safety and | |
mission critical applications that require provable dependability. | |
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; | |
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 volatile uint32_t ulPortYieldRequired; \ | |
\ | |
if( xSwitchRequired != pdFALSE ) \ | |
{ \ | |
ulPortYieldRequired = pdTRUE; \ | |
} \ | |
} | |
#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x ) | |
#define portYIELD() __asm volatile ( "SWI 0 \n" \ | |
"ISB " ); | |
/*----------------------------------------------------------- | |
* Critical section control | |
*----------------------------------------------------------*/ | |
extern void vPortEnterCritical( void ); | |
extern void vPortExitCritical( void ); | |
extern uint32_t ulPortSetInterruptMask( void ); | |
extern void vPortClearInterruptMask( uint32_t ulNewMaskValue ); | |
extern void vPortInstallFreeRTOSVectorTable( void ); | |
/* The I bit within the CPSR. */ | |
#define portINTERRUPT_ENABLE_BIT ( 1 << 7 ) | |
/* In the absence of a priority mask register, these functions and macros | |
globally enable and disable interrupts. */ | |
#define portENTER_CRITICAL() vPortEnterCritical(); | |
#define portEXIT_CRITICAL() vPortExitCritical(); | |
#define portENABLE_INTERRUPTS() __asm volatile ( "CPSIE i \n" ); | |
#define portDISABLE_INTERRUPTS() __asm volatile ( "CPSID i \n" \ | |
"DSB \n" \ | |
"ISB " ); | |
__attribute__( ( always_inline ) ) static __inline uint32_t portINLINE_SET_INTERRUPT_MASK_FROM_ISR( void ) | |
{ | |
volatile uint32_t ulCPSR; | |
__asm volatile ( "MRS %0, CPSR" : "=r" (ulCPSR) ); | |
ulCPSR &= portINTERRUPT_ENABLE_BIT; | |
portDISABLE_INTERRUPTS(); | |
return ulCPSR; | |
} | |
#define portSET_INTERRUPT_MASK_FROM_ISR() portINLINE_SET_INTERRUPT_MASK_FROM_ISR() | |
#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) if( x == 0 ) portENABLE_INTERRUPTS() | |
/*-----------------------------------------------------------*/ | |
/* 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() | |
#define portLOWEST_INTERRUPT_PRIORITY ( ( ( uint32_t ) configUNIQUE_INTERRUPT_PRIORITIES ) - 1UL ) | |
#define portLOWEST_USABLE_INTERRUPT_PRIORITY ( portLOWEST_INTERRUPT_PRIORITY - 1UL ) | |
/* 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 = ( 31UL - ( uint32_t ) __builtin_clz( uxReadyPriorities ) ) | |
#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */ | |
#define portNOP() __asm volatile( "NOP" ) | |
#define portINLINE __inline | |
#ifdef __cplusplus | |
} /* extern C */ | |
#endif | |
#endif /* PORTMACRO_H */ | |