X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=FreeRTOS%2FSource%2Fportable%2FGCC%2FARM_CM4F%2Fportmacro.h;h=41f1fbc7d22c976853400ad047e9203920f75466;hb=b473fddd0a6a35390132c46400b32af8c7ef36e9;hp=7d58e7b8244712c3090c74ee146ad588cb3664df;hpb=728f36ecb6111cf147aee41136405f98303a4209;p=freertos diff --git a/FreeRTOS/Source/portable/GCC/ARM_CM4F/portmacro.h b/FreeRTOS/Source/portable/GCC/ARM_CM4F/portmacro.h index 7d58e7b82..41f1fbc7d 100644 --- a/FreeRTOS/Source/portable/GCC/ARM_CM4F/portmacro.h +++ b/FreeRTOS/Source/portable/GCC/ARM_CM4F/portmacro.h @@ -1,48 +1,38 @@ /* - FreeRTOS V7.4.2 - Copyright (C) 2013 Real Time Engineers Ltd. + FreeRTOS V8.1.2 - Copyright (C) 2014 Real Time Engineers Ltd. + All rights reserved - FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT - http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. + VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. *************************************************************************** * * - * FreeRTOS tutorial books are available in pdf and paperback. * - * Complete, revised, and edited pdf reference manuals are also * - * available. * + * FreeRTOS provides completely free yet professionally developed, * + * robust, strictly quality controlled, supported, and cross * + * platform software that has become a de facto standard. * * * - * Purchasing FreeRTOS documentation will not only help you, by * - * ensuring you get running as quickly as possible and with an * - * in-depth knowledge of how to use FreeRTOS, it will also help * - * the FreeRTOS project to continue with its mission of providing * - * professional grade, cross platform, de facto standard solutions * - * for microcontrollers - completely free of charge! * + * Help yourself get started quickly and support the FreeRTOS * + * project by purchasing a FreeRTOS tutorial book, reference * + * manual, or both from: http://www.FreeRTOS.org/Documentation * * * - * >>> See http://www.FreeRTOS.org/Documentation for details. <<< * - * * - * Thank you for using FreeRTOS, and thank you for your support! * + * Thank you! * * * *************************************************************************** - 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. + 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. + >>! 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. See the GNU General Public License for more - details. You should have received a copy of the GNU General Public License - and the FreeRTOS license exception along with FreeRTOS; if not it can be - viewed here: http://www.freertos.org/a00114.html and also obtained by - writing to Real Time Engineers Ltd., contact details for whom are available - on the FreeRTOS WEB site. + FOR A PARTICULAR PURPOSE. Full license text is available from the following + link: http://www.freertos.org/a00114.html 1 tab == 4 spaces! @@ -55,21 +45,22 @@ * * *************************************************************************** - http://www.FreeRTOS.org - Documentation, books, training, latest versions, license and Real Time Engineers Ltd. contact details. http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, - including FreeRTOS+Trace - an indispensable productivity tool, and our new - fully thread aware and reentrant UDP/IP stack. + including FreeRTOS+Trace - an indispensable productivity tool, a DOS + compatible FAT file system, and our tiny thread aware UDP/IP stack. http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High - Integrity Systems, who sell the code with commercial support, - indemnification and middleware, under the OpenRTOS brand. + Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS + licenses offer ticketed support, indemnification and 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! */ @@ -96,43 +87,43 @@ extern "C" { #define portDOUBLE double #define portLONG long #define portSHORT short -#define portSTACK_TYPE unsigned portLONG +#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 unsigned portSHORT portTickType; - #define portMAX_DELAY ( portTickType ) 0xffff + typedef uint16_t TickType_t; + #define portMAX_DELAY ( TickType_t ) 0xffff #else - typedef unsigned portLONG portTickType; - #define portMAX_DELAY ( portTickType ) 0xffffffff + typedef uint32_t TickType_t; + #define portMAX_DELAY ( TickType_t ) 0xffffffffUL #endif /*-----------------------------------------------------------*/ /* Architecture specifics. */ #define portSTACK_GROWTH ( -1 ) -#define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ ) +#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #define portBYTE_ALIGNMENT 8 /*-----------------------------------------------------------*/ - /* Scheduler utilities. */ -extern void vPortYield( void ); -#define portNVIC_INT_CTRL_REG ( * ( ( volatile unsigned long * ) 0xe000ed04 ) ) +#define portNVIC_INT_CTRL_REG ( * ( ( volatile uint32_t * ) 0xe000ed04 ) ) #define portNVIC_PENDSVSET_BIT ( 1UL << 28UL ) -#define portYIELD() vPortYield() -#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT +#define portYIELD() vPortYield() +#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired != pdFALSE ) vPortYield() #define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x ) /*-----------------------------------------------------------*/ /* Critical section management. */ extern void vPortEnterCritical( void ); extern void vPortExitCritical( void ); -extern unsigned long ulPortSetInterruptMask( void ); -extern void vPortClearInterruptMask( unsigned long ulNewMaskValue ); -#define portSET_INTERRUPT_MASK_FROM_ISR() ulPortSetInterruptMask() -#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vPortClearInterruptMask(x) -#define portDISABLE_INTERRUPTS() ulPortSetInterruptMask() -#define portENABLE_INTERRUPTS() vPortClearInterruptMask(0) +#define portSET_INTERRUPT_MASK_FROM_ISR() ulPortRaiseBASEPRI() +#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vPortSetBASEPRI(x) +#define portDISABLE_INTERRUPTS() ulPortRaiseBASEPRI() +#define portENABLE_INTERRUPTS() vPortSetBASEPRI(0) #define portENTER_CRITICAL() vPortEnterCritical() #define portEXIT_CRITICAL() vPortExitCritical() @@ -147,18 +138,22 @@ not necessary for to use this port. They are defined so the common demo files /* Tickless idle/low power functionality. */ #ifndef portSUPPRESS_TICKS_AND_SLEEP - extern void vPortSuppressTicksAndSleep( portTickType xExpectedIdleTime ); + 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 unsigned char ucPortCountLeadingZeros( unsigned long ulBitmap ) + __attribute__( ( always_inline ) ) static inline uint8_t ucPortCountLeadingZeros( uint32_t ulBitmap ) { - unsigned char ucReturn; + uint8_t ucReturn; __asm volatile ( "clz %0, %1" : "=r" ( ucReturn ) : "r" ( ulBitmap ) ); return ucReturn; @@ -181,9 +176,61 @@ not necessary for to use this port. They are defined so the common demo files /*-----------------------------------------------------------*/ +#ifdef configASSERT + void vPortValidateInterruptPriority( void ); + #define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() vPortValidateInterruptPriority() +#endif + /* portNOP() is not required by this port. */ #define portNOP() +#ifndef portFORCE_INLINE + #define portFORCE_INLINE inline __attribute__(( always_inline)) +#endif + +/*-----------------------------------------------------------*/ + +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 ) + ); +} +/*-----------------------------------------------------------*/ + +portFORCE_INLINE static void vPortYield( void ) +{ + /* 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" ); +} + + #ifdef __cplusplus } #endif