| /* |
| * FreeRTOS Kernel V202110.00 |
| * Copyright (C) 2020 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. |
| * |
| * https://www.FreeRTOS.org |
| * https://github.com/FreeRTOS |
| * |
| * 1 tab == 4 spaces! |
| */ |
| |
| #ifndef PORTMACRO_H |
| #define PORTMACRO_H |
| |
| #include <intrinsics.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; |
| |
| 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 |
| |
| /*-----------------------------------------------------------*/ |
| |
| /* Hardware specifics. */ |
| #define portSTACK_GROWTH ( -1 ) |
| #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) |
| #define portBYTE_ALIGNMENT 8 |
| |
| /*-----------------------------------------------------------*/ |
| |
| /* Task utilities. */ |
| |
| /* Called at the end of an ISR that can cause a context switch. */ |
| #define portEND_SWITCHING_ISR( xSwitchRequired )\ |
| { \ |
| extern volatile uint32_t ulPortYieldRequired; \ |
| \ |
| if( xSwitchRequired != pdFALSE ) \ |
| { \ |
| ulPortYieldRequired = pdTRUE; \ |
| } \ |
| } |
| |
| #define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x ) |
| #define portYIELD() __asm volatile ( "SWI 0 \n" \ |
| "ISB " ); |
| |
| |
| /*----------------------------------------------------------- |
| * Critical section control |
| *----------------------------------------------------------*/ |
| |
| extern void vPortEnterCritical( void ); |
| extern void vPortExitCritical( void ); |
| extern uint32_t ulPortSetInterruptMask( void ); |
| extern void vPortClearInterruptMask( uint32_t ulNewMaskValue ); |
| extern void vPortInstallFreeRTOSVectorTable( void ); |
| |
| /* The I bit within the CPSR. */ |
| #define portINTERRUPT_ENABLE_BIT ( 1 << 7 ) |
| |
| /* In the absence of a priority mask register, these functions and macros |
| globally enable and disable interrupts. */ |
| #define portENTER_CRITICAL() vPortEnterCritical(); |
| #define portEXIT_CRITICAL() vPortExitCritical(); |
| #define portENABLE_INTERRUPTS() __asm volatile ( "CPSIE i \n" ); |
| #define portDISABLE_INTERRUPTS() __asm volatile ( "CPSID i \n" \ |
| "DSB \n" \ |
| "ISB " ); |
| #pragma inline |
| static inline uint32_t portINLINE_SET_INTERRUPT_MASK_FROM_ISR( void ) |
| { |
| volatile uint32_t ulCPSR; |
| |
| __asm volatile ( "MRS %0, CPSR" : "=r" (ulCPSR) ); |
| ulCPSR &= portINTERRUPT_ENABLE_BIT; |
| portDISABLE_INTERRUPTS(); |
| return ulCPSR; |
| } |
| |
| #define portSET_INTERRUPT_MASK_FROM_ISR() portINLINE_SET_INTERRUPT_MASK_FROM_ISR() |
| #define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) if( x == 0 ) portENABLE_INTERRUPTS() |
| |
| /*-----------------------------------------------------------*/ |
| |
| /* Task function macros as described on the FreeRTOS.org WEB site. These are |
| not required for this port but included in case common demo code that uses these |
| macros is used. */ |
| #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters ) |
| #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters ) |
| |
| /* Prototype of the FreeRTOS tick handler. This must be installed as the |
| handler for whichever peripheral is used to generate the RTOS tick. */ |
| void FreeRTOS_Tick_Handler( void ); |
| |
| /* Any task that uses the floating point unit MUST call vPortTaskUsesFPU() |
| before any floating point instructions are executed. */ |
| void vPortTaskUsesFPU( void ); |
| #define portTASK_USES_FLOATING_POINT() vPortTaskUsesFPU() |
| |
| #define portLOWEST_INTERRUPT_PRIORITY ( ( ( uint32_t ) configUNIQUE_INTERRUPT_PRIORITIES ) - 1UL ) |
| #define portLOWEST_USABLE_INTERRUPT_PRIORITY ( portLOWEST_INTERRUPT_PRIORITY - 1UL ) |
| |
| /* Architecture specific optimisations. */ |
| #ifndef configUSE_PORT_OPTIMISED_TASK_SELECTION |
| #define configUSE_PORT_OPTIMISED_TASK_SELECTION 1 |
| #endif |
| |
| #if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1 |
| |
| /* 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 /* configUSE_PORT_OPTIMISED_TASK_SELECTION */ |
| |
| #define portNOP() __asm volatile( "NOP" ) |
| #define portINLINE inline |
| |
| /* Suppress warnings that are generated by the IAR tools, but cannot be fixed in |
| the source code because to do so would cause other compilers to generate |
| warnings. */ |
| #pragma diag_suppress=Pe191 |
| #pragma diag_suppress=Pa082 |
| |
| #ifdef __cplusplus |
| } /* extern C */ |
| #endif |
| |
| |
| #endif /* PORTMACRO_H */ |
| |