mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-04-19 21:11:57 -04:00
d0d55f3031
Fix FPU stack order issue and Improve FPU checking flow Fix Interrupt depth comparison logic Fix parameter mismatch in portmacro.h file Add comment to explain assembly code
194 lines
7.5 KiB
C
194 lines
7.5 KiB
C
/*
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* FreeRTOS Kernel <DEVELOPMENT BRANCH>
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* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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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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{
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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
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* than 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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/* Defines the maximum time when using a wait command in a task */
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#if ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS )
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typedef uint16_t TickType_t;
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#define portMAX_DELAY ( TickType_t ) 0xffff
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#elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS )
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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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#else
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#error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width.
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#endif
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/*-----------------------------------------------------------*/
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/* Architecture specifics */
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#define portSTSR( reg ) __stsr( ( reg ) )
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#define portLDSR( reg, val ) __ldsr( ( reg ), ( val ) )
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#define portSTSR_CCRH( reg, sel ) __stsr_rh( ( reg ), ( sel ) )
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#define portSYNCM() __syncm()
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/* Determine the descending of the stack from high address to address */
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#define portSTACK_GROWTH ( -1 )
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/* Determine the time (in milliseconds) corresponding to each tick */
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#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
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/* It is a multiple of 4 (the two lower-order bits of the address = 0),
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* otherwise it will cause MAE (Misaligned Exception) according to the manual */
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#define portBYTE_ALIGNMENT ( 4 )
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/* Interrupt control macros. */
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#define portENABLE_INTERRUPTS() __EI() /* Macro to enable all maskable interrupts. */
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#define portDISABLE_INTERRUPTS() __DI() /* Macro to disable all maskable interrupts. */
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#define taskENABLE_INTERRUPTS() portENABLE_INTERRUPTS()
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#define taskDISABLE_INTERRUPTS() portDISABLE_INTERRUPTS()
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/* SMP build which means configNUM_CORES is relevant */
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#define portSUPPORT_SMP 1
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#define portMAX_CORE_COUNT 2
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#ifndef configNUMBER_OF_CORES
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#define configNUMBER_OF_CORES 1
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#endif
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/*-----------------------------------------------------------*/
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/* Scheduler utilities */
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/* Called at the end of an ISR that can cause a context switch */
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extern void vPortSetSwitch( BaseType_t xSwitchRequired );
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#define portEND_SWITCHING_ISR( x ) vPortSetSwitch( x )
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#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
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/* Use to transfer control from one task to perform other tasks of
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* higher priority */
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extern void vPortYield( void );
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#define portYIELD() vPortYield()
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#if ( configNUMBER_OF_CORES > 1 )
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/* Return the core ID on which the code is running. */
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extern BaseType_t xPortGET_CORE_ID();
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#define portGET_CORE_ID() xPortGET_CORE_ID()
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#define coreid xPortGET_CORE_ID()
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/* Request the core ID x to yield. */
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extern void vPortYieldCore( uint32_t coreID );
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#define portYIELD_CORE( x ) vPortYieldCore( x )
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#define portENTER_CRITICAL_FROM_ISR() vTaskEnterCriticalFromISR()
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#define portEXIT_CRITICAL_FROM_ISR( x ) vTaskExitCriticalFromISR( x )
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#endif /* if ( configNUMBER_OF_CORES > 1 ) */
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#if ( configNUMBER_OF_CORES == 1 )
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#define portGET_ISR_LOCK()
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#define portRELEASE_ISR_LOCK()
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#define portGET_TASK_LOCK()
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#define portRELEASE_TASK_LOCK()
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#else
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extern void vPortRecursiveLockAcquire( BaseType_t xFromIsr );
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extern void vPortRecursiveLockRelease( BaseType_t xFromIsr );
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#define portGET_ISR_LOCK() vPortRecursiveLockAcquire( pdTRUE )
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#define portRELEASE_ISR_LOCK() vPortRecursiveLockRelease( pdTRUE )
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#define portGET_TASK_LOCK() vPortRecursiveLockAcquire( pdFALSE )
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#define portRELEASE_TASK_LOCK() vPortRecursiveLockRelease( pdFALSE )
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#endif /* if ( configNUMBER_OF_CORES == 1 ) */
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/*-----------------------------------------------------------*/
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/* Critical section management. */
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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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/* Macro to mark the start of a critical code region */
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#define portENTER_CRITICAL() vTaskEnterCritical()
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/* Macro to mark the end of a critical code region */
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#define portEXIT_CRITICAL() vTaskExitCritical()
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/*-----------------------------------------------------------*/
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/* Macros to set and clear the interrupt mask. */
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portLONG xPortSetInterruptMask();
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void vPortClearInterruptMask( portLONG );
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#define portSET_INTERRUPT_MASK() xPortSetInterruptMask()
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#define portCLEAR_INTERRUPT_MASK( x ) vPortClearInterruptMask( ( x ) )
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#define portSET_INTERRUPT_MASK_FROM_ISR() xPortSetInterruptMask()
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#define portCLEAR_INTERRUPT_MASK_FROM_ISR( x ) vPortClearInterruptMask( ( x ) )
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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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/*-----------------------------------------------------------*/
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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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