208 lines
8.3 KiB
C
208 lines
8.3 KiB
C
/*
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FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd.
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All rights reserved
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VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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This file is part of the FreeRTOS distribution.
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FreeRTOS is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License (version 2) as published by the
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Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.
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***************************************************************************
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>>! NOTE: The modification to the GPL is included to allow you to !<<
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>>! distribute a combined work that includes FreeRTOS without being !<<
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>>! obliged to provide the source code for proprietary components !<<
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>>! outside of the FreeRTOS kernel. !<<
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***************************************************************************
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FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. Full license text is available on the following
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link: http://www.freertos.org/a00114.html
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***************************************************************************
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* *
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* FreeRTOS provides completely free yet professionally developed, *
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* robust, strictly quality controlled, supported, and cross *
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* platform software that is more than just the market leader, it *
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* is the industry's de facto standard. *
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* *
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* Help yourself get started quickly while simultaneously helping *
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* to support the FreeRTOS project by purchasing a FreeRTOS *
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* tutorial book, reference manual, or both: *
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* http://www.FreeRTOS.org/Documentation *
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* *
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***************************************************************************
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http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
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the FAQ page "My application does not run, what could be wrong?". Have you
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defined configASSERT()?
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http://www.FreeRTOS.org/support - In return for receiving this top quality
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embedded software for free we request you assist our global community by
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participating in the support forum.
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http://www.FreeRTOS.org/training - Investing in training allows your team to
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be as productive as possible as early as possible. Now you can receive
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FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
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Ltd, and the world's leading authority on the world's leading RTOS.
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http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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compatible FAT file system, and our tiny thread aware UDP/IP stack.
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http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
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Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
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http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
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Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
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licenses offer ticketed support, indemnification and commercial middleware.
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http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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engineered and independently SIL3 certified version for use in safety and
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mission critical applications that require provable dependability.
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1 tab == 4 spaces!
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*/
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/*-----------------------------------------------------------
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* Portable layer API. Each function must be defined for each port.
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*----------------------------------------------------------*/
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#ifndef PORTABLE_H
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#define PORTABLE_H
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/* Each FreeRTOS port has a unique portmacro.h header file. Originally a
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pre-processor definition was used to ensure the pre-processor found the correct
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portmacro.h file for the port being used. That scheme was deprecated in favour
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of setting the compiler's include path such that it found the correct
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portmacro.h file - removing the need for the constant and allowing the
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portmacro.h file to be located anywhere in relation to the port being used.
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Purely for reasons of backward compatibility the old method is still valid, but
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to make it clear that new projects should not use it, support for the port
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specific constants has been moved into the deprecated_definitions.h header
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file. */
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#include "deprecated_definitions.h"
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/* If portENTER_CRITICAL is not defined then including deprecated_definitions.h
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did not result in a portmacro.h header file being included - and it should be
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included here. In this case the path to the correct portmacro.h header file
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must be set in the compiler's include path. */
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#ifndef portENTER_CRITICAL
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#include "portmacro.h"
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#endif
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#if portBYTE_ALIGNMENT == 32
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#define portBYTE_ALIGNMENT_MASK ( 0x001f )
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#endif
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#if portBYTE_ALIGNMENT == 16
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#define portBYTE_ALIGNMENT_MASK ( 0x000f )
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#endif
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#if portBYTE_ALIGNMENT == 8
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#define portBYTE_ALIGNMENT_MASK ( 0x0007 )
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#endif
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#if portBYTE_ALIGNMENT == 4
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#define portBYTE_ALIGNMENT_MASK ( 0x0003 )
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#endif
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#if portBYTE_ALIGNMENT == 2
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#define portBYTE_ALIGNMENT_MASK ( 0x0001 )
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#endif
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#if portBYTE_ALIGNMENT == 1
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#define portBYTE_ALIGNMENT_MASK ( 0x0000 )
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#endif
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#ifndef portBYTE_ALIGNMENT_MASK
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#error "Invalid portBYTE_ALIGNMENT definition"
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#endif
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#ifndef portNUM_CONFIGURABLE_REGIONS
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#define portNUM_CONFIGURABLE_REGIONS 1
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "mpu_wrappers.h"
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/*
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* Setup the stack of a new task so it is ready to be placed under the
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* scheduler control. The registers have to be placed on the stack in
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* the order that the port expects to find them.
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*
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*/
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#if( portUSING_MPU_WRAPPERS == 1 )
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StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters, BaseType_t xRunPrivileged ) PRIVILEGED_FUNCTION;
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#else
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StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters ) PRIVILEGED_FUNCTION;
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#endif
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/* Used by heap_5.c. */
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typedef struct HeapRegion
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{
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uint8_t *pucStartAddress;
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size_t xSizeInBytes;
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} HeapRegion_t;
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/*
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* Used to define multiple heap regions for use by heap_5.c. This function
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* must be called before any calls to pvPortMalloc() - not creating a task,
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* queue, semaphore, mutex, software timer, event group, etc. will result in
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* pvPortMalloc being called.
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*
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* pxHeapRegions passes in an array of HeapRegion_t structures - each of which
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* defines a region of memory that can be used as the heap. The array is
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* terminated by a HeapRegions_t structure that has a size of 0. The region
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* with the lowest start address must appear first in the array.
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*/
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void vPortDefineHeapRegions( const HeapRegion_t * const pxHeapRegions ) PRIVILEGED_FUNCTION;
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/*
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* Map to the memory management routines required for the port.
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*/
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void *pvPortMalloc( size_t xSize ) PRIVILEGED_FUNCTION;
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void vPortFree( void *pv ) PRIVILEGED_FUNCTION;
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void vPortInitialiseBlocks( void ) PRIVILEGED_FUNCTION;
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size_t xPortGetFreeHeapSize( void ) PRIVILEGED_FUNCTION;
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size_t xPortGetMinimumEverFreeHeapSize( void ) PRIVILEGED_FUNCTION;
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/*
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* Setup the hardware ready for the scheduler to take control. This generally
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* sets up a tick interrupt and sets timers for the correct tick frequency.
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*/
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BaseType_t xPortStartScheduler( void ) PRIVILEGED_FUNCTION;
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/*
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* Undo any hardware/ISR setup that was performed by xPortStartScheduler() so
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* the hardware is left in its original condition after the scheduler stops
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* executing.
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*/
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void vPortEndScheduler( void ) PRIVILEGED_FUNCTION;
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/*
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* The structures and methods of manipulating the MPU are contained within the
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* port layer.
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*
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* Fills the xMPUSettings structure with the memory region information
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* contained in xRegions.
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*/
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#if( portUSING_MPU_WRAPPERS == 1 )
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struct xMEMORY_REGION;
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void vPortStoreTaskMPUSettings( xMPU_SETTINGS *xMPUSettings, const struct xMEMORY_REGION * const xRegions, StackType_t *pxBottomOfStack, uint32_t ulStackDepth ) PRIVILEGED_FUNCTION;
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* PORTABLE_H */
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