| /* |
| * FreeRTOS Kernel V10.5.1 |
| * Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * 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. |
| * |
| * https://www.FreeRTOS.org |
| * https://github.com/FreeRTOS |
| * |
| */ |
| |
| |
| #ifndef PORTMACRO_H |
| #define PORTMACRO_H |
| |
| /* *INDENT-OFF* */ |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| /* *INDENT-ON* */ |
| |
| /*----------------------------------------------------------- |
| * 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 |
| |
| /* Constants used with memory barrier intrinsics. */ |
| #define portSY_FULL_READ_WRITE ( 15 ) |
| |
| /*-----------------------------------------------------------*/ |
| |
| /* 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. */ \ |
| __dsb( portSY_FULL_READ_WRITE ); \ |
| __isb( portSY_FULL_READ_WRITE ); \ |
| } |
| /*-----------------------------------------------------------*/ |
| |
| #define portNVIC_INT_CTRL_REG ( *( ( volatile uint32_t * ) 0xe000ed04 ) ) |
| #define portNVIC_PENDSVSET_BIT ( 1UL << 28UL ) |
| #define portEND_SWITCHING_ISR( xSwitchRequired ) do { if( xSwitchRequired != pdFALSE ) portYIELD(); } while( 0 ) |
| #define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x ) |
| /*-----------------------------------------------------------*/ |
| |
| /* Critical section management. */ |
| extern void vPortEnterCritical( void ); |
| extern void vPortExitCritical( void ); |
| |
| #define portDISABLE_INTERRUPTS() vPortRaiseBASEPRI() |
| #define portENABLE_INTERRUPTS() vPortSetBASEPRI( 0 ) |
| #define portENTER_CRITICAL() vPortEnterCritical() |
| #define portEXIT_CRITICAL() vPortExitCritical() |
| #define portSET_INTERRUPT_MASK_FROM_ISR() ulPortRaiseBASEPRI() |
| #define portCLEAR_INTERRUPT_MASK_FROM_ISR( x ) vPortSetBASEPRI( x ) |
| |
| /*-----------------------------------------------------------*/ |
| |
| /* 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 |
| /*-----------------------------------------------------------*/ |
| |
| /* Port specific optimisations. */ |
| #ifndef configUSE_PORT_OPTIMISED_TASK_SELECTION |
| #define configUSE_PORT_OPTIMISED_TASK_SELECTION 1 |
| #endif |
| |
| #if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1 |
| |
| /* 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 ) __clz( ( uxReadyPriorities ) ) ) |
| |
| #endif /* taskRECORD_READY_PRIORITY */ |
| /*-----------------------------------------------------------*/ |
| |
| /* 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 ) |
| /*-----------------------------------------------------------*/ |
| |
| #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 __forceinline |
| #endif |
| |
| /*-----------------------------------------------------------*/ |
| |
| static portFORCE_INLINE void vPortSetBASEPRI( uint32_t ulBASEPRI ) |
| { |
| __asm |
| { |
| /* Barrier instructions are not used as this function is only used to |
| * lower the BASEPRI value. */ |
| /* *INDENT-OFF* */ |
| msr basepri, ulBASEPRI |
| /* *INDENT-ON* */ |
| } |
| } |
| /*-----------------------------------------------------------*/ |
| |
| static portFORCE_INLINE void vPortRaiseBASEPRI( void ) |
| { |
| uint32_t ulNewBASEPRI = configMAX_SYSCALL_INTERRUPT_PRIORITY; |
| |
| __asm |
| { |
| /* Set BASEPRI to the max syscall priority to effect a critical |
| * section. */ |
| /* *INDENT-OFF* */ |
| msr basepri, ulNewBASEPRI |
| dsb |
| isb |
| /* *INDENT-ON* */ |
| } |
| } |
| /*-----------------------------------------------------------*/ |
| |
| static portFORCE_INLINE void vPortClearBASEPRIFromISR( void ) |
| { |
| __asm |
| { |
| /* Set BASEPRI to 0 so no interrupts are masked. This function is only |
| * used to lower the mask in an interrupt, so memory barriers are not |
| * used. */ |
| /* *INDENT-OFF* */ |
| msr basepri, # 0 |
| /* *INDENT-ON* */ |
| } |
| } |
| /*-----------------------------------------------------------*/ |
| |
| static portFORCE_INLINE uint32_t ulPortRaiseBASEPRI( void ) |
| { |
| uint32_t ulReturn, ulNewBASEPRI = configMAX_SYSCALL_INTERRUPT_PRIORITY; |
| |
| __asm |
| { |
| /* Set BASEPRI to the max syscall priority to effect a critical |
| * section. */ |
| /* *INDENT-OFF* */ |
| mrs ulReturn, basepri |
| msr basepri, ulNewBASEPRI |
| dsb |
| isb |
| /* *INDENT-ON* */ |
| } |
| |
| return ulReturn; |
| } |
| /*-----------------------------------------------------------*/ |
| |
| static portFORCE_INLINE BaseType_t xPortIsInsideInterrupt( void ) |
| { |
| uint32_t ulCurrentInterrupt; |
| BaseType_t xReturn; |
| |
| /* Obtain the number of the currently executing interrupt. */ |
| __asm |
| { |
| /* *INDENT-OFF* */ |
| mrs ulCurrentInterrupt, ipsr |
| /* *INDENT-ON* */ |
| } |
| |
| if( ulCurrentInterrupt == 0 ) |
| { |
| xReturn = pdFALSE; |
| } |
| else |
| { |
| xReturn = pdTRUE; |
| } |
| |
| return xReturn; |
| } |
| |
| /* *INDENT-OFF* */ |
| #ifdef __cplusplus |
| } |
| #endif |
| /* *INDENT-ON* */ |
| |
| #endif /* PORTMACRO_H */ |
