1 /* 2 * FreeRTOS Kernel V11.0.1 3 * Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved. 4 * 5 * SPDX-License-Identifier: MIT 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy of 8 * this software and associated documentation files (the "Software"), to deal in 9 * the Software without restriction, including without limitation the rights to 10 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of 11 * the Software, and to permit persons to whom the Software is furnished to do so, 12 * subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in all 15 * copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS 19 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR 20 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 21 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * https://www.FreeRTOS.org 25 * https://github.com/FreeRTOS 26 * 27 */ 28 29 #ifndef PORTMACRO_H 30 #define PORTMACRO_H 31 32 /* *INDENT-OFF* */ 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 /* *INDENT-ON* */ 37 38 /*----------------------------------------------------------- 39 * Port specific definitions. 40 * 41 * The settings in this file configure FreeRTOS correctly for the 42 * given hardware and compiler. 43 * 44 * These settings should not be altered. 45 *----------------------------------------------------------- 46 */ 47 48 /* Type definitions. */ 49 #define portCHAR char 50 #define portFLOAT float 51 #define portDOUBLE double 52 #define portLONG long 53 #define portSHORT int 54 #define portSTACK_TYPE uint16_t 55 #define portBASE_TYPE short 56 57 typedef portSTACK_TYPE StackType_t; 58 typedef short BaseType_t; 59 typedef unsigned short UBaseType_t; 60 61 #if ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS ) 62 typedef uint16_t TickType_t; 63 #define portMAX_DELAY ( TickType_t ) 0xffff 64 #elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS ) 65 typedef uint32_t TickType_t; 66 #define portMAX_DELAY ( TickType_t ) ( 0xFFFFFFFFUL ) 67 #else 68 #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width. 69 #endif 70 /*-----------------------------------------------------------*/ 71 72 /* Interrupt control macros. */ 73 #define portDISABLE_INTERRUPTS() asm volatile ( "DINT" ); asm volatile ( "NOP" ) 74 #define portENABLE_INTERRUPTS() asm volatile ( "EINT" ); asm volatile ( "NOP" ) 75 /*-----------------------------------------------------------*/ 76 77 /* Critical section control macros. */ 78 #define portNO_CRITICAL_SECTION_NESTING ( ( uint16_t ) 0 ) 79 80 #define portENTER_CRITICAL() \ 81 { \ 82 extern volatile uint16_t usCriticalNesting; \ 83 \ 84 portDISABLE_INTERRUPTS(); \ 85 \ 86 /* Now that interrupts are disabled, ulCriticalNesting can be accessed */ \ 87 /* directly. Increment ulCriticalNesting to keep a count of how many */ \ 88 /* times portENTER_CRITICAL() has been called. */ \ 89 usCriticalNesting++; \ 90 } 91 92 #define portEXIT_CRITICAL() \ 93 { \ 94 extern volatile uint16_t usCriticalNesting; \ 95 \ 96 if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING ) \ 97 { \ 98 /* Decrement the nesting count as we are leaving a critical section. */ \ 99 usCriticalNesting--; \ 100 \ 101 /* If the nesting level has reached zero then interrupts should be */ \ 102 /* re-enabled. */ \ 103 if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING ) \ 104 { \ 105 portENABLE_INTERRUPTS(); \ 106 } \ 107 } \ 108 } 109 /*-----------------------------------------------------------*/ 110 111 /* Task utilities. */ 112 extern void vPortYield( void ) __attribute__( ( naked ) ); 113 #define portYIELD() vPortYield() 114 #define portNOP() asm volatile ( "NOP" ) 115 /*-----------------------------------------------------------*/ 116 117 /* Hardware specifics. */ 118 #define portBYTE_ALIGNMENT 2 119 #define portSTACK_GROWTH ( -1 ) 120 #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) 121 /*-----------------------------------------------------------*/ 122 123 /* Task function macros as described on the FreeRTOS.org WEB site. */ 124 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters ) 125 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters ) 126 127 /* *INDENT-OFF* */ 128 #ifdef __cplusplus 129 } 130 #endif 131 /* *INDENT-ON* */ 132 133 #endif /* PORTMACRO_H */ 134
