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authorDominik Sliwa <dominik.sliwa@toradex.com>2018-10-30 16:31:29 +0100
committerDominik Sliwa <dominik.sliwa@toradex.com>2018-10-31 11:54:38 +0100
commit56e86c626df3dbf74c1021210636a7c5d92a49ce (patch)
tree54ba9581ad14d838d8926e4e6d673befad1f932c /freertos/Source/portable/GCC/ARM_CM3/portmacro.h
parent4dfc5493fec8f6290457446b0478695b153da60a (diff)
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
Diffstat (limited to 'freertos/Source/portable/GCC/ARM_CM3/portmacro.h')
-rw-r--r--freertos/Source/portable/GCC/ARM_CM3/portmacro.h284
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diff --git a/freertos/Source/portable/GCC/ARM_CM3/portmacro.h b/freertos/Source/portable/GCC/ARM_CM3/portmacro.h
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-/*
- FreeRTOS V9.0.0 - Copyright (C) 2016 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;
-
-#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 )
-#define portBYTE_ALIGNMENT 8
-/*-----------------------------------------------------------*/
-
-/* Scheduler utilities. */
-#define portYIELD() \
-{ \
- /* Set a PendSV to request a context switch. */ \
- portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT; \
- \
- /* Barriers are normally not required but do ensure the code is completely \
- within the specified behaviour for the architecture. */ \
- __asm volatile( "dsb" ); \
- __asm volatile( "isb" ); \
-}
-
-#define portNVIC_INT_CTRL_REG ( * ( ( volatile uint32_t * ) 0xe000ed04 ) )
-#define portNVIC_PENDSVSET_BIT ( 1UL << 28UL )
-#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired != pdFALSE ) portYIELD()
-#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
-/*-----------------------------------------------------------*/
-
-/* Critical section management. */
-extern void vPortEnterCritical( void );
-extern void vPortExitCritical( void );
-#define portSET_INTERRUPT_MASK_FROM_ISR() ulPortRaiseBASEPRI()
-#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vPortSetBASEPRI(x)
-#define portDISABLE_INTERRUPTS() vPortRaiseBASEPRI()
-#define portENABLE_INTERRUPTS() vPortSetBASEPRI(0)
-#define portENTER_CRITICAL() vPortEnterCritical()
-#define portEXIT_CRITICAL() vPortExitCritical()
-
-/*-----------------------------------------------------------*/
-
-/* Task function macros as described on the FreeRTOS.org WEB site. These are
-not necessary for to use this port. They are defined so the common demo files
-(which build with all the ports) will build. */
-#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
-#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
-/*-----------------------------------------------------------*/
-
-/* Tickless idle/low power functionality. */
-#ifndef portSUPPRESS_TICKS_AND_SLEEP
- extern void vPortSuppressTicksAndSleep( TickType_t xExpectedIdleTime );
- #define portSUPPRESS_TICKS_AND_SLEEP( xExpectedIdleTime ) vPortSuppressTicksAndSleep( xExpectedIdleTime )
-#endif
-/*-----------------------------------------------------------*/
-
-/* Architecture specific optimisations. */
-#ifndef configUSE_PORT_OPTIMISED_TASK_SELECTION
- #define configUSE_PORT_OPTIMISED_TASK_SELECTION 1
-#endif
-
-#if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1
-
- /* Generic helper function. */
- __attribute__( ( always_inline ) ) static inline uint8_t ucPortCountLeadingZeros( uint32_t ulBitmap )
- {
- uint8_t ucReturn;
-
- __asm volatile ( "clz %0, %1" : "=r" ( ucReturn ) : "r" ( ulBitmap ) );
- return ucReturn;
- }
-
- /* Check the configuration. */
- #if( configMAX_PRIORITIES > 32 )
- #error configUSE_PORT_OPTIMISED_TASK_SELECTION can only be set to 1 when configMAX_PRIORITIES is less than or equal to 32. It is very rare that a system requires more than 10 to 15 difference priorities as tasks that share a priority will time slice.
- #endif
-
- /* 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 ) ucPortCountLeadingZeros( ( uxReadyPriorities ) ) )
-
-#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */
-
-/*-----------------------------------------------------------*/
-
-#ifdef configASSERT
- void vPortValidateInterruptPriority( void );
- #define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() vPortValidateInterruptPriority()
-#endif
-
-/* portNOP() is not required by this port. */
-#define portNOP()
-
-#define portINLINE __inline
-
-#ifndef portFORCE_INLINE
- #define portFORCE_INLINE inline __attribute__(( always_inline))
-#endif
-
-portFORCE_INLINE static BaseType_t xPortIsInsideInterrupt( void )
-{
-uint32_t ulCurrentInterrupt;
-BaseType_t xReturn;
-
- /* Obtain the number of the currently executing interrupt. */
- __asm volatile( "mrs %0, ipsr" : "=r"( ulCurrentInterrupt ) );
-
- if( ulCurrentInterrupt == 0 )
- {
- xReturn = pdFALSE;
- }
- else
- {
- xReturn = pdTRUE;
- }
-
- return xReturn;
-}
-
-/*-----------------------------------------------------------*/
-
-portFORCE_INLINE static void vPortRaiseBASEPRI( void )
-{
-uint32_t ulNewBASEPRI;
-
- __asm volatile
- (
- " mov %0, %1 \n" \
- " msr basepri, %0 \n" \
- " isb \n" \
- " dsb \n" \
- :"=r" (ulNewBASEPRI) : "i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY )
- );
-}
-
-/*-----------------------------------------------------------*/
-
-portFORCE_INLINE static uint32_t ulPortRaiseBASEPRI( void )
-{
-uint32_t ulOriginalBASEPRI, ulNewBASEPRI;
-
- __asm volatile
- (
- " mrs %0, basepri \n" \
- " mov %1, %2 \n" \
- " msr basepri, %1 \n" \
- " isb \n" \
- " dsb \n" \
- :"=r" (ulOriginalBASEPRI), "=r" (ulNewBASEPRI) : "i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY )
- );
-
- /* This return will not be reached but is necessary to prevent compiler
- warnings. */
- return ulOriginalBASEPRI;
-}
-/*-----------------------------------------------------------*/
-
-portFORCE_INLINE static void vPortSetBASEPRI( uint32_t ulNewMaskValue )
-{
- __asm volatile
- (
- " msr basepri, %0 " :: "r" ( ulNewMaskValue )
- );
-}
-/*-----------------------------------------------------------*/
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* PORTMACRO_H */
-