begriffs open source - freertos/blob - portable/GCC/MSP430F449/portmacro.h

   1 /*
   2  * FreeRTOS Kernel V10.4.3
   3  * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a copy of
   6  * this software and associated documentation files (the "Software"), to deal in
   7  * the Software without restriction, including without limitation the rights to
   8  * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
   9  * the Software, and to permit persons to whom the Software is furnished to do so,
  10  * subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in all
  13  * copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
  17  * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
  18  * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  19  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  20  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * https://www.FreeRTOS.org
  23  * https://github.com/FreeRTOS
  24  *
  25  * 1 tab == 4 spaces!
  26  */
  27
  28 #ifndef PORTMACRO_H
  29 #define PORTMACRO_H
  30
  31 #ifdef __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 /*-----------------------------------------------------------
  36  * Port specific definitions.
  37  *
  38  * The settings in this file configure FreeRTOS correctly for the
  39  * given hardware and compiler.
  40  *
  41  * These settings should not be altered.
  42  *-----------------------------------------------------------
  43  */
  44
  45 /* Type definitions. */
  46 #define portCHAR                char
  47 #define portFLOAT               float
  48 #define portDOUBLE              double
  49 #define portLONG                long
  50 #define portSHORT               int
  51 #define portSTACK_TYPE  uint16_t
  52 #define portBASE_TYPE   short
  53
  54 typedef portSTACK_TYPE StackType_t;
  55 typedef short BaseType_t;
  56 typedef unsigned short UBaseType_t;
  57
  58 #if( configUSE_16_BIT_TICKS == 1 )
  59         typedef uint16_t TickType_t;
  60         #define portMAX_DELAY ( TickType_t ) 0xffff
  61 #else
  62         typedef uint32_t TickType_t;
  63         #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
  64 #endif
  65 /*-----------------------------------------------------------*/
  66
  67 /* Interrupt control macros. */
  68 #define portDISABLE_INTERRUPTS()        asm volatile ( "DINT" ); asm volatile ( "NOP" )
  69 #define portENABLE_INTERRUPTS()         asm volatile ( "EINT" ); asm volatile ( "NOP" )
  70 /*-----------------------------------------------------------*/
  71
  72 /* Critical section control macros. */
  73 #define portNO_CRITICAL_SECTION_NESTING         ( ( uint16_t ) 0 )
  74
  75 #define portENTER_CRITICAL()                                                                                                    \
  76 {                                                                                                                                                               \
  77 extern volatile uint16_t usCriticalNesting;                                                     \
  78                                                                                                                                                                 \
  79         portDISABLE_INTERRUPTS();                                                                                                       \
  80                                                                                                                                                                 \
  81         /* Now interrupts are disabled ulCriticalNesting can be accessed */                     \
  82         /* directly.  Increment ulCriticalNesting to keep a count of how many */        \
  83         /* times portENTER_CRITICAL() has been called. */                                                       \
  84         usCriticalNesting++;                                                                                                            \
  85 }
  86
  87 #define portEXIT_CRITICAL()                                                                                                             \
  88 {                                                                                                                                                               \
  89 extern volatile uint16_t usCriticalNesting;                                                     \
  90                                                                                                                                                                 \
  91         if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING )                                       \
  92         {                                                                                                                                                       \
  93                 /* Decrement the nesting count as we are leaving a critical section. */ \
  94                 usCriticalNesting--;                                                                                                    \
  95                                                                                                                                                                 \
  96                 /* If the nesting level has reached zero then interrupts should be */   \
  97                 /* re-enabled. */                                                                                                               \
  98                 if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING )                              \
  99                 {                                                                                                                                               \
 100                         portENABLE_INTERRUPTS();                                                                                        \
 101                 }                                                                                                                                               \
 102         }                                                                                                                                                       \
 103 }
 104 /*-----------------------------------------------------------*/
 105
 106 /* Task utilities. */
 107 extern void vPortYield( void ) __attribute__ ( ( naked ) );
 108 #define portYIELD()                     vPortYield()
 109 #define portNOP()                       asm volatile ( "NOP" )
 110 /*-----------------------------------------------------------*/
 111
 112 /* Hardwware specifics. */
 113 #define portBYTE_ALIGNMENT                      2
 114 #define portSTACK_GROWTH                        ( -1 )
 115 #define portTICK_PERIOD_MS                      ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
 116 /*-----------------------------------------------------------*/
 117
 118 /* Task function macros as described on the FreeRTOS.org WEB site. */
 119 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
 120 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
 121
 122 #ifdef __cplusplus
 123 }
 124 #endif
 125
 126 #endif /* PORTMACRO_H */
 127