mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
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153 lines
6.4 KiB
C
153 lines
6.4 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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/* *INDENT-OFF* */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* *INDENT-ON* */
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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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/* When the FIT configurator or the Smart Configurator is used, platform.h has to be
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* used. */
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#ifndef configINCLUDE_PLATFORM_H_INSTEAD_OF_IODEFINE_H
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#define configINCLUDE_PLATFORM_H_INSTEAD_OF_IODEFINE_H 0
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#endif
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/* Type definitions - these are a bit legacy and not really used now, other than
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* 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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#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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/* Hardware specifics. */
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#define portBYTE_ALIGNMENT 8 /* Could make four, according to manual. */
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#define portSTACK_GROWTH -1
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#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
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#define portNOP() __asm volatile ( "NOP" )
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/* Yield equivalent to "*portITU_SWINTR = 0x01; ( void ) *portITU_SWINTR;"
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* where portITU_SWINTR is the location of the software interrupt register
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* (0x000872E0). Don't rely on the assembler to select a register, so instead
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* save and restore clobbered registers manually. */
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#define portYIELD() \
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__asm volatile \
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( \
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"PUSH.L R10 \n" \
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"MOV.L #0x872E0, R10 \n" \
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"MOV.B #0x1, [R10] \n" \
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"MOV.L [R10], R10 \n" \
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"POP R10 \n" \
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)
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#define portYIELD_FROM_ISR( x ) if( x != pdFALSE ) portYIELD( )
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/* These macros should not be called directly, but through the
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* taskENTER_CRITICAL() and taskEXIT_CRITICAL() macros. An extra check is
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* performed if configASSERT() is defined to ensure an assertion handler does not
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* inadvertently attempt to lower the IPL when the call to assert was triggered
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* because the IPL value was found to be above configMAX_SYSCALL_INTERRUPT_PRIORITY
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* when an ISR safe FreeRTOS API function was executed. ISR safe FreeRTOS API
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* functions are those that end in FromISR. FreeRTOS maintains a separate
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* interrupt API to ensure API function and interrupt entry is as fast and as
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* simple as possible. */
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#define portENABLE_INTERRUPTS() __asm volatile ( "MVTIPL #0" )
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#if ( configASSERT_DEFINED == 1 )
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#define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() configASSERT( ( ulPortGetIPL() <= configMAX_SYSCALL_INTERRUPT_PRIORITY ) )
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#define portDISABLE_INTERRUPTS() if( ulPortGetIPL() < configMAX_SYSCALL_INTERRUPT_PRIORITY ) __asm volatile( "MVTIPL %0" ::"i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) )
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#else
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#define portDISABLE_INTERRUPTS() __asm volatile ( "MVTIPL %0" ::"i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) )
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#endif
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/* Critical nesting counts are stored in the TCB. */
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#define portCRITICAL_NESTING_IN_TCB ( 1 )
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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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#define portENTER_CRITICAL() vTaskEnterCritical()
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#define portEXIT_CRITICAL() vTaskExitCritical()
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/* As this port allows interrupt nesting... */
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uint32_t ulPortGetIPL( void ) __attribute__( ( naked ) );
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void vPortSetIPL( uint32_t ulNewIPL ) __attribute__( ( naked ) );
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#define portSET_INTERRUPT_MASK_FROM_ISR() ulPortGetIPL(); portDISABLE_INTERRUPTS()
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#define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus ) vPortSetIPL( uxSavedInterruptStatus )
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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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#define portMEMORY_BARRIER() __asm volatile ( "" ::: "memory" )
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/* *INDENT-OFF* */
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#ifdef __cplusplus
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}
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#endif
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/* *INDENT-ON* */
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#endif /* PORTMACRO_H */
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