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187 lines
8.2 KiB
C
187 lines
8.2 KiB
C
/*
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FreeRTOS V8.2.1 - Copyright (C) 2015 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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#ifndef PORTMACRO_H
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#define PORTMACRO_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*-----------------------------------------------------------
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* Port specific definitions.
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*
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* The settings in this file configure FreeRTOS correctly for the
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* given hardware and compiler.
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*
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* These settings should not be altered.
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*-----------------------------------------------------------
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*/
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/* Type definitions - these are a bit legacy and not really used now, other than
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portSTACK_TYPE and portBASE_TYPE. */
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#define portCHAR char
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#define portFLOAT float
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#define portDOUBLE double
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#define portLONG long
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#define portSHORT short
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#define portSTACK_TYPE uint32_t
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#define portBASE_TYPE long
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typedef portSTACK_TYPE StackType_t;
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typedef long BaseType_t;
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typedef unsigned long UBaseType_t;
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#if( configUSE_16_BIT_TICKS == 1 )
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typedef uint16_t TickType_t;
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#define portMAX_DELAY ( TickType_t ) 0xffff
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#else
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typedef uint32_t TickType_t;
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#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
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/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
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not need to be guarded with a critical section. */
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#define portTICK_TYPE_IS_ATOMIC 1
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#endif
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/*-----------------------------------------------------------*/
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/* Hardware specifics. */
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#define portBYTE_ALIGNMENT 8 /* Could make four, according to manual. */
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#define portSTACK_GROWTH -1
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#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
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#define portNOP() __asm volatile( "NOP" )
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/* Save clobbered register, set ITU SWINR (at address 0x872E0), read the value
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back to ensure it is set before continuing, then restore the clobbered
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register. */
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#define portYIELD() \
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__asm volatile \
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( \
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"MOV.L #0x872E0, r5 \n\t" \
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"MOV.B #1, [r5] \n\t" \
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"MOV.L [r5], r5 \n\t" \
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::: "r5" \
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)
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#define portYIELD_FROM_ISR( x ) if( x != pdFALSE ) { portYIELD(); }
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/* These macros should not be called directly, but through the
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taskENTER_CRITICAL() and taskEXIT_CRITICAL() macros. An extra check is
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performed if configASSERT() is defined to ensure an assertion handler does not
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inadvertently attempt to lower the IPL when the call to assert was triggered
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because the IPL value was found to be above configMAX_SYSCALL_INTERRUPT_PRIORITY
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when an ISR safe FreeRTOS API function was executed. ISR safe FreeRTOS API
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functions are those that end in FromISR. FreeRTOS maintains a separate
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interrupt API to ensure API function and interrupt entry is as fast and as
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simple as possible. */
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#define portENABLE_INTERRUPTS() __asm volatile ( "MVTIPL #0" )
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#ifdef configASSERT
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#define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() configASSERT( ( ulPortGetIPL() <= configMAX_SYSCALL_INTERRUPT_PRIORITY ) )
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#define portDISABLE_INTERRUPTS() if( ulPortGetIPL() < configMAX_SYSCALL_INTERRUPT_PRIORITY ) __asm volatile ( "MVTIPL %0" ::"i"(configMAX_SYSCALL_INTERRUPT_PRIORITY) )
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#else
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#define portDISABLE_INTERRUPTS() __asm volatile ( "MVTIPL %0" ::"i"(configMAX_SYSCALL_INTERRUPT_PRIORITY) )
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#endif
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/* Critical nesting counts are stored in the TCB. */
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#define portCRITICAL_NESTING_IN_TCB ( 1 )
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/* The critical nesting functions defined within tasks.c. */
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extern void vTaskEnterCritical( void );
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extern void vTaskExitCritical( void );
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#define portENTER_CRITICAL() vTaskEnterCritical()
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#define portEXIT_CRITICAL() vTaskExitCritical()
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/* As this port allows interrupt nesting... */
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uint32_t ulPortGetIPL( void ) __attribute__((naked));
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void vPortSetIPL( uint32_t ulNewIPL ) __attribute__((naked));
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#define portSET_INTERRUPT_MASK_FROM_ISR() ulPortGetIPL(); portDISABLE_INTERRUPTS()
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#define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus ) vPortSetIPL( uxSavedInterruptStatus )
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/* Tickless idle/low power functionality. */
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#if configUSE_TICKLESS_IDLE == 1
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#ifndef portSUPPRESS_TICKS_AND_SLEEP
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extern void vPortSuppressTicksAndSleep( TickType_t xExpectedIdleTime );
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#define portSUPPRESS_TICKS_AND_SLEEP( xExpectedIdleTime ) vPortSuppressTicksAndSleep( xExpectedIdleTime )
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#endif
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#endif
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/*-----------------------------------------------------------*/
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/* Task function macros as described on the FreeRTOS.org WEB site. */
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#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
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#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
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#ifdef __cplusplus
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}
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#endif
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#endif /* PORTMACRO_H */
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