| /* |
| * FreeRTOS Kernel <DEVELOPMENT BRANCH> |
| * 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* */ |
| |
| #include <machine/cpu.h> |
| |
| /*----------------------------------------------------------- |
| * 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( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS ) |
| typedef uint16_t TickType_t; |
| #define portMAX_DELAY ( TickType_t ) 0xffff |
| #elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS ) |
| typedef uint32_t TickType_t; |
| #define portMAX_DELAY ( TickType_t ) ( 0xFFFFFFFFUL ) |
| #else |
| #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width. |
| #endif |
| /*-----------------------------------------------------------*/ |
| |
| /* Architecture specifics. */ |
| #define portSTACK_GROWTH ( -1 ) |
| #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) |
| #define portBYTE_ALIGNMENT 4 |
| #define portNOP() __asm__ volatile ( "mov r0, r0" ) |
| #define portCRITICAL_NESTING_IN_TCB 1 |
| #define portIRQ_TRAP_YIELD 31 |
| /*-----------------------------------------------------------*/ |
| |
| /* Task utilities. */ |
| |
| extern void vPortYield( void ); |
| |
| /*---------------------------------------------------------------------------*/ |
| |
| #define portYIELD() asm __volatile__( " trap #%0 "::"i"(portIRQ_TRAP_YIELD):"memory") |
| /*---------------------------------------------------------------------------*/ |
| |
| extern void vTaskEnterCritical( void ); |
| extern void vTaskExitCritical( void ); |
| #define portENTER_CRITICAL() vTaskEnterCritical() |
| #define portEXIT_CRITICAL() vTaskExitCritical() |
| /*---------------------------------------------------------------------------*/ |
| |
| /* Critical section management. */ |
| #define portDISABLE_INTERRUPTS() cpu_int_disable() |
| #define portENABLE_INTERRUPTS() cpu_int_enable() |
| |
| /*---------------------------------------------------------------------------*/ |
| |
| #define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) do { if( xHigherPriorityTaskWoken != pdFALSE ) vTaskSwitchContext(); } while( 0 ) |
| |
| /*---------------------------------------------------------------------------*/ |
| |
| #define portSAVE_CONTEXT() \ |
| asm __volatile__ \ |
| ( \ |
| "sub r1, #68 \n" /* Make space on the stack for the context. */ \ |
| "std r2, [r1] + 0 \n" \ |
| "stq r4, [r1] + 8 \n" \ |
| "stq r8, [r1] + 24 \n" \ |
| "stq r12, [r1] + 40 \n" \ |
| "mov r6, rtt \n" \ |
| "mov r7, psr \n" \ |
| "std r6, [r1] + 56 \n" \ |
| "movhi r2, #16384 \n" /* Set the pointer to the IC. */ \ |
| "ldub r3, [r2] + 2 \n" /* Load the current interrupt mask. */ \ |
| "st r3, [r1]+ 64 \n" /* Store the interrupt mask on the stack. */ \ |
| "ld r2, [r0]+short(pxCurrentTCB) \n" /* Load the pointer to the TCB. */ \ |
| "st r1, [r2] \n" /* Save the stack pointer into the TCB. */ \ |
| "mov r14, r1 \n" /* Compiler expects r14 to be set to the function stack. */ \ |
| ); |
| /*---------------------------------------------------------------------------*/ |
| |
| #define portRESTORE_CONTEXT() \ |
| asm __volatile__( \ |
| "ld r2, [r0]+short(pxCurrentTCB) \n" /* Load the TCB to find the stack pointer and context. */ \ |
| "ld r1, [r2] \n" \ |
| "movhi r2, #16384 \n" /* Set the pointer to the IC. */ \ |
| "ld r3, [r1] + 64 \n" /* Load the previous interrupt mask. */ \ |
| "stb r3, [r2] + 2 \n" /* Set the current interrupt mask to be the previous. */ \ |
| "ldd r6, [r1] + 56 \n" /* Restore context. */ \ |
| "mov rtt, r6 \n" \ |
| "mov psr, r7 \n" \ |
| "ldd r2, [r1] + 0 \n" \ |
| "ldq r4, [r1] + 8 \n" \ |
| "ldq r8, [r1] + 24 \n" \ |
| "ldq r12, [r1] + 40 \n" \ |
| "add r1, #68 \n" \ |
| "rti \n" \ |
| ); |
| |
| /*---------------------------------------------------------------------------*/ |
| |
| /* 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 ) |
| /*---------------------------------------------------------------------------*/ |
| |
| /* *INDENT-OFF* */ |
| #ifdef __cplusplus |
| } |
| #endif |
| /* *INDENT-ON* */ |
| |
| #endif /* PORTMACRO_H */ |