begriffs open source - freertos/blob - portable/IAR/V850ES/portmacro.h

   1 /*\r
   2  * FreeRTOS Kernel <DEVELOPMENT BRANCH>\r
   3  * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.\r
   4  *\r
   5  * SPDX-License-Identifier: MIT
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy of\r
   8  * this software and associated documentation files (the "Software"), to deal in\r
   9  * the Software without restriction, including without limitation the rights to\r
  10  * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\r
  11  * the Software, and to permit persons to whom the Software is furnished to do so,\r
  12  * subject to the following conditions:\r
  13  *\r
  14  * The above copyright notice and this permission notice shall be included in all\r
  15  * copies or substantial portions of the Software.\r
  16  *\r
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
  19  * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
  20  * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
  21  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
  23  *\r
  24  * https://www.FreeRTOS.org\r
  25  * https://github.com/FreeRTOS\r
  26  *\r
  27  */\r
  28 \r
  29 #ifndef PORTMACRO_H\r
  30 #define PORTMACRO_H\r
  31 \r
  32 #ifdef __cplusplus\r
  33 extern "C" {\r
  34 #endif\r
  35 \r
  36 /*-----------------------------------------------------------\r
  37  * Port specific definitions.\r
  38  *\r
  39  * The settings in this file configure FreeRTOS correctly for the\r
  40  * given hardware and compiler.\r
  41  *\r
  42  * These settings should not be altered.\r
  43  *-----------------------------------------------------------\r
  44  */\r
  45 \r
  46 /* Type definitions. */\r
  47 #define portCHAR        char\r
  48 #define portFLOAT       float\r
  49 #define portDOUBLE      double\r
  50 #define portLONG        long\r
  51 #define portSHORT       short\r
  52 #define portSTACK_TYPE  unsigned int\r
  53 #define portBASE_TYPE   int\r
  54 \r
  55 typedef portSTACK_TYPE StackType_t;\r
  56 typedef long BaseType_t;\r
  57 typedef unsigned long UBaseType_t;\r
  58 \r
  59 \r
  60 #if (configUSE_16_BIT_TICKS==1)\r
  61         typedef uint16_t TickType_t;\r
  62         #define portMAX_DELAY ( TickType_t ) 0xffff\r
  63 #else\r
  64         typedef uint32_t TickType_t;\r
  65         #define portMAX_DELAY ( TickType_t ) 0xffffffffUL\r
  66 #endif\r
  67 /*-----------------------------------------------------------*/\r
  68 \r
  69 /* Interrupt control macros. */\r
  70 #define portDISABLE_INTERRUPTS() __asm ( "DI" )\r
  71 #define portENABLE_INTERRUPTS()  __asm ( "EI" )\r
  72 /*-----------------------------------------------------------*/\r
  73 \r
  74 /* Critical section control macros. */\r
  75 #define portNO_CRITICAL_SECTION_NESTING         ( ( UBaseType_t ) 0 )\r
  76 \r
  77 #define portENTER_CRITICAL()                                                                                                            \\r
  78 {                                                                                                                                                                       \\r
  79 extern volatile /*uint16_t*/ portSTACK_TYPE usCriticalNesting;                                          \\r
  80                                                                                                                                                                         \\r
  81         portDISABLE_INTERRUPTS();                                                                                                               \\r
  82                                                                                                                                                                         \\r
  83         /* Now interrupts are disabled ulCriticalNesting can be accessed */                             \\r
  84         /* directly.  Increment ulCriticalNesting to keep a count of how many */                \\r
  85         /* times portENTER_CRITICAL() has been called. */                                                               \\r
  86         usCriticalNesting++;                                                                                                                    \\r
  87 }\r
  88 \r
  89 #define portEXIT_CRITICAL()                                                                                                                     \\r
  90 {                                                                                                                                                                       \\r
  91 extern volatile /*uint16_t*/ portSTACK_TYPE usCriticalNesting;                                          \\r
  92                                                                                                                                                                         \\r
  93         if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING )                                               \\r
  94         {                                                                                                                                                               \\r
  95                 /* Decrement the nesting count as we are leaving a critical section. */         \\r
  96                 usCriticalNesting--;                                                                                                            \\r
  97                                                                                                                                                                         \\r
  98                 /* If the nesting level has reached zero then interrupts should be */           \\r
  99                 /* re-enabled. */                                                                                                                       \\r
 100                 if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING )                                      \\r
 101                 {                                                                                                                                                       \\r
 102                         portENABLE_INTERRUPTS();                                                                                                \\r
 103                 }                                                                                                                                                       \\r
 104         }                                                                                                                                                               \\r
 105 }\r
 106 /*-----------------------------------------------------------*/\r
 107 \r
 108 /* Task utilities. */\r
 109 extern void vPortYield( void );\r
 110 extern void vPortStart( void );\r
 111 extern void portSAVE_CONTEXT( void );\r
 112 extern void portRESTORE_CONTEXT( void );\r
 113 #define portYIELD()     __asm ( "trap 0" )\r
 114 #define portNOP()       __asm ( "NOP" )\r
 115 extern void vTaskSwitchContext( void );\r
 116 #define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) do { if( xHigherPriorityTaskWoken ) vTaskSwitchContext(); } while( 0 )\r
 117 \r
 118 /*-----------------------------------------------------------*/\r
 119 \r
 120 /* Hardwware specifics. */\r
 121 #define portBYTE_ALIGNMENT      4\r
 122 #define portSTACK_GROWTH        ( -1 )\r
 123 #define portTICK_PERIOD_MS      ( ( TickType_t ) 1000 / configTICK_RATE_HZ )\r
 124 /*-----------------------------------------------------------*/\r
 125 \r
 126 /* Task function macros as described on the FreeRTOS.org WEB site. */\r
 127 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 128 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 129 \r
 130 \r
 131 #ifdef __cplusplus\r
 132 }\r
 133 #endif\r
 134 \r
 135 #endif /* PORTMACRO_H */\r
 136 \r