begriffs open source - freertos/blob - portable/IAR/MSP430X/portmacro.h

   1 /*
   2  * FreeRTOS SMP Kernel V202110.00
   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 /*-----------------------------------------------------------
  32  * Port specific definitions.
  33  *
  34  * The settings in this file configure FreeRTOS correctly for the
  35  * given hardware and compiler.
  36  *
  37  * These settings should not be altered.
  38  *-----------------------------------------------------------
  39  */
  40
  41 /* Hardware includes. */
  42 #include "msp430.h"
  43
  44 /* Type definitions. */
  45 #define portCHAR                char
  46 #define portFLOAT               float
  47 #define portDOUBLE              double
  48 #define portLONG                long
  49 #define portSHORT               int
  50 #define portBASE_TYPE   short
  51
  52 /* The stack type changes depending on the data model. */
  53 #if( __DATA_MODEL__ == __DATA_MODEL_SMALL__ )
  54         #define portSTACK_TYPE uint16_t
  55         #define portPOINTER_SIZE_TYPE uint16_t
  56 #else
  57         #define portSTACK_TYPE uint32_t
  58 #endif
  59
  60 typedef portSTACK_TYPE StackType_t;
  61 typedef short BaseType_t;
  62 typedef unsigned short UBaseType_t;
  63
  64 #if( configUSE_16_BIT_TICKS == 1 )
  65         typedef uint16_t TickType_t;
  66         #define portMAX_DELAY ( TickType_t ) 0xffff
  67 #else
  68         typedef uint32_t TickType_t;
  69         #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
  70 #endif
  71
  72 /*-----------------------------------------------------------*/
  73
  74 /* Interrupt control macros. */
  75 #define portDISABLE_INTERRUPTS()        _DINT(); _NOP()
  76 #define portENABLE_INTERRUPTS()         _EINT(); _NOP()
  77 /*-----------------------------------------------------------*/
  78
  79 /* Critical section control macros. */
  80 #define portNO_CRITICAL_SECTION_NESTING         ( ( uint16_t ) 0 )
  81
  82 #define portENTER_CRITICAL()                                                                                                    \
  83 {                                                                                                                                                               \
  84 extern volatile uint16_t usCriticalNesting;                                                                             \
  85                                                                                                                                                                 \
  86         portDISABLE_INTERRUPTS();                                                                                                       \
  87                                                                                                                                                                 \
  88         /* Now interrupts are disabled usCriticalNesting can be accessed */                     \
  89         /* directly.  Increment ulCriticalNesting to keep a count of how many */        \
  90         /* times portENTER_CRITICAL() has been called. */                                                       \
  91         usCriticalNesting++;                                                                                                            \
  92 }
  93
  94 #define portEXIT_CRITICAL()                                                                                                             \
  95 {                                                                                                                                                               \
  96 extern volatile uint16_t usCriticalNesting;                                                                             \
  97                                                                                                                                                                 \
  98         if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING )                                       \
  99         {                                                                                                                                                       \
 100                 /* Decrement the nesting count as we are leaving a critical section. */ \
 101                 usCriticalNesting--;                                                                                                    \
 102                                                                                                                                                                 \
 103                 /* If the nesting level has reached zero then interrupts should be */   \
 104                 /* re-enabled. */                                                                                                               \
 105                 if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING )                              \
 106                 {                                                                                                                                               \
 107                         portENABLE_INTERRUPTS();                                                                                        \
 108                 }                                                                                                                                               \
 109         }                                                                                                                                                       \
 110 }
 111 /*-----------------------------------------------------------*/
 112
 113 /* Task utilities. */
 114
 115 /*
 116  * Manual context switch called by portYIELD or taskYIELD.
 117  */
 118 extern void vPortYield( void );
 119 #define portYIELD() vPortYield()
 120 /*-----------------------------------------------------------*/
 121
 122 /* Hardware specifics. */
 123 #define portBYTE_ALIGNMENT                      2
 124 #define portSTACK_GROWTH                        ( -1 )
 125 #define portTICK_PERIOD_MS                      ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
 126 #define portNOP()                                       __no_operation()
 127 /*-----------------------------------------------------------*/
 128
 129 /* Task function macros as described on the FreeRTOS.org WEB site. */
 130 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
 131 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
 132
 133 #define portYIELD_FROM_ISR( x ) if( x ) vPortYield()
 134
 135 void vApplicationSetupTimerInterrupt( void );
 136
 137 /* sizeof( int ) != sizeof( long ) so a full printf() library is required if
 138 run time stats information is to be displayed. */
 139 #define portLU_PRINTF_SPECIFIER_REQUIRED
 140
 141 #endif /* PORTMACRO_H */
 142