diff options
Diffstat (limited to 'freertos/src/portable/GCC/ARM_CM3/portmacro.h')
-rw-r--r-- | freertos/src/portable/GCC/ARM_CM3/portmacro.h | 526 |
1 files changed, 242 insertions, 284 deletions
diff --git a/freertos/src/portable/GCC/ARM_CM3/portmacro.h b/freertos/src/portable/GCC/ARM_CM3/portmacro.h index d44fc92..fd1d340 100644 --- a/freertos/src/portable/GCC/ARM_CM3/portmacro.h +++ b/freertos/src/portable/GCC/ARM_CM3/portmacro.h @@ -1,284 +1,242 @@ -/* - 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 */ - +/*
+ * FreeRTOS Kernel V10.1.1
+ * Copyright (C) 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * http://www.FreeRTOS.org
+ * http://aws.amazon.com/freertos
+ *
+ * 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" ::: "memory" ); \
+ __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 ) : "memory" );
+ 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 ) :: "memory" );
+
+ 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 ) : "memory"
+ );
+}
+
+/*-----------------------------------------------------------*/
+
+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 ) : "memory"
+ );
+
+ /* 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 ) : "memory"
+ );
+}
+/*-----------------------------------------------------------*/
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PORTMACRO_H */
+
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