/* * 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 #ifdef __IAR_SYSTEMS_ICC__ #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. *----------------------------------------------------------- */ #if __DATA_MODEL__ == __DATA_MODEL_FAR__ && __CODE_MODEL__ == __CODE_MODEL_NEAR__ #warning This port has not been tested with your selected memory model combination. If a far data model is required it is recommended to also use a far code model. #endif #if __DATA_MODEL__ == __DATA_MODEL_NEAR__ && __CODE_MODEL__ == __CODE_MODEL_FAR__ #warning This port has not been tested with your selected memory model combination. If a far code model is required it is recommended to also use a far data model. #endif /* Type definitions. */ #define portCHAR char #define portFLOAT float #define portDOUBLE double #define portLONG long #define portSHORT short #define portSTACK_TYPE uint16_t #define portBASE_TYPE short typedef portSTACK_TYPE StackType_t; typedef short BaseType_t; typedef unsigned short UBaseType_t; #if __DATA_MODEL__ == __DATA_MODEL_FAR__ #define portPOINTER_SIZE_TYPE uint32_t #else #define portPOINTER_SIZE_TYPE uint16_t #endif #if ( configUSE_16_BIT_TICKS == 1 ) typedef unsigned int TickType_t; #define portMAX_DELAY ( TickType_t ) 0xffff #else typedef uint32_t TickType_t; #define portMAX_DELAY ( TickType_t ) 0xffffffffUL #endif /*-----------------------------------------------------------*/ /* Interrupt control macros. */ #define portDISABLE_INTERRUPTS() __asm ( "DI" ) #define portENABLE_INTERRUPTS() __asm ( "EI" ) /*-----------------------------------------------------------*/ /* Critical section control macros. */ #define portNO_CRITICAL_SECTION_NESTING ( ( uint16_t ) 0 ) #define portENTER_CRITICAL() \ { \ extern volatile uint16_t usCriticalNesting; \ \ portDISABLE_INTERRUPTS(); \ \ /* Now interrupts are disabled ulCriticalNesting can be accessed */ \ /* directly. Increment ulCriticalNesting to keep a count of how many */ \ /* times portENTER_CRITICAL() has been called. */ \ usCriticalNesting++; \ } #define portEXIT_CRITICAL() \ { \ extern volatile uint16_t usCriticalNesting; \ \ if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING ) \ { \ /* Decrement the nesting count when leaving a critical section. */ \ usCriticalNesting--; \ \ /* If the nesting level has reached zero then interrupts should be */ \ /* re-enabled. */ \ if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING ) \ { \ portENABLE_INTERRUPTS(); \ } \ } \ } /*-----------------------------------------------------------*/ /* Task utilities. */ #define portNOP() __asm( "NOP" ) #define portYIELD() __asm( "BRK" ) #define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) do { if( xHigherPriorityTaskWoken ) vTaskSwitchContext(); } while( 0 ) /*-----------------------------------------------------------*/ /* Hardwware specifics. */ #define portBYTE_ALIGNMENT 2 #define portSTACK_GROWTH ( -1 ) #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) /*-----------------------------------------------------------*/ /* Task function macros as described on the FreeRTOS.org WEB site. */ #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters ) #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters ) #ifdef __cplusplus } #endif /* __cplusplus */ #endif /* __IAR_SYSTEMS_ICC__ */ ;//----------------------------------------------------------------------------- ;// The macros below are processed for asm sources which include portmacro.h. ;//----------------------------------------------------------------------------- #ifdef __IAR_SYSTEMS_ASM__ ;/* Functions and variables used by this file. */ ;//----------------------------------------------------------------------------- EXTERN _pxCurrentTCB EXTERN _usCriticalNesting ;/* Macro used to declutter calls, depends on the selected code model. */ ;//----------------------------------------------------------------------------- #if __CODE_MODEL__ == __CODE_MODEL_FAR__ #define RCALL(X) CALL F:X #else #define RCALL(X) CALL X #endif ;/*----------------------------------------------------------------------------- ; * portSAVE_CONTEXT MACRO ; * Saves the context of the general purpose registers, CS and ES (only in __far ; * memory mode) registers the _usCriticalNesting value and the Stack Pointer ; * of the active Task onto the task stack. ; *---------------------------------------------------------------------------*/ portSAVE_CONTEXT MACRO PUSH AX ; // Save AX Register to stack. PUSH HL #if __CODE_MODEL__ == __CODE_MODEL_FAR__ MOV A, CS ; // Save CS register. XCH A, X MOV A, ES ; // Save ES register. PUSH AX #else MOV A, CS ; // Save CS register. PUSH AX #endif PUSH DE ; // Save the remaining general purpose registers. PUSH BC MOVW AX, _usCriticalNesting ; // Save the _usCriticalNesting value. PUSH AX MOVW AX, _pxCurrentTCB ; // Save the Task stack pointer. MOVW HL, AX MOVW AX, SP MOVW [HL], AX ENDM ;//----------------------------------------------------------------------------- ;/*----------------------------------------------------------------------------- ; * portRESTORE_CONTEXT MACRO ; * Restores the task Stack Pointer then use this to restore _usCriticalNesting, ; * general purpose registers and the CS and ES (only in __far memory mode) ; * of the selected task from the task stack. ; *---------------------------------------------------------------------------*/ portRESTORE_CONTEXT MACRO MOVW AX, _pxCurrentTCB ; // Restore the Task stack pointer. MOVW HL, AX MOVW AX, [HL] MOVW SP, AX POP AX ; // Restore _usCriticalNesting value. MOVW _usCriticalNesting, AX POP BC ; // Restore the necessary general purpose registers. POP DE #if __CODE_MODEL__ == __CODE_MODEL_FAR__ POP AX ; // Restore the ES register. MOV ES, A XCH A, X ; // Restore the CS register. MOV CS, A #else POP AX MOV CS, A ; // Restore CS register. #endif POP HL ; // Restore general purpose register HL. POP AX ; // Restore AX. ENDM ;//----------------------------------------------------------------------------- #endif /* __IAR_SYSTEMS_ASM__ */ #endif /* PORTMACRO_H */