git.sur5r.net Git - freertos/blob - FreeRTOS/Source/portable/GCC/MSP430F449/portmacro.h

   1 /*\r
   2  * FreeRTOS Kernel V10.0.1\r
   3  * Copyright (C) 2017 Amazon.com, Inc. or its affiliates.  All Rights Reserved.\r
   4  *\r
   5  * Permission is hereby granted, free of charge, to any person obtaining a copy of\r
   6  * this software and associated documentation files (the "Software"), to deal in\r
   7  * the Software without restriction, including without limitation the rights to\r
   8  * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\r
   9  * the Software, and to permit persons to whom the Software is furnished to do so,\r
  10  * subject to the following conditions:\r
  11  *\r
  12  * The above copyright notice and this permission notice shall be included in all\r
  13  * copies or substantial portions of the Software.\r
  14  *\r
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
  17  * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
  18  * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
  19  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
  20  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
  21  *\r
  22  * http://www.FreeRTOS.org\r
  23  * http://aws.amazon.com/freertos\r
  24  *\r
  25  * 1 tab == 4 spaces!\r
  26  */\r
  27 \r
  28 #ifndef PORTMACRO_H\r
  29 #define PORTMACRO_H\r
  30 \r
  31 #ifdef __cplusplus\r
  32 extern "C" {\r
  33 #endif\r
  34 \r
  35 /*-----------------------------------------------------------\r
  36  * Port specific definitions.\r
  37  *\r
  38  * The settings in this file configure FreeRTOS correctly for the\r
  39  * given hardware and compiler.\r
  40  *\r
  41  * These settings should not be altered.\r
  42  *-----------------------------------------------------------\r
  43  */\r
  44 \r
  45 /* Type definitions. */\r
  46 #define portCHAR                char\r
  47 #define portFLOAT               float\r
  48 #define portDOUBLE              double\r
  49 #define portLONG                long\r
  50 #define portSHORT               int\r
  51 #define portSTACK_TYPE  uint16_t\r
  52 #define portBASE_TYPE   short\r
  53 \r
  54 typedef portSTACK_TYPE StackType_t;\r
  55 typedef short BaseType_t;\r
  56 typedef unsigned short UBaseType_t;\r
  57 \r
  58 #if( configUSE_16_BIT_TICKS == 1 )\r
  59         typedef uint16_t TickType_t;\r
  60         #define portMAX_DELAY ( TickType_t ) 0xffff\r
  61 #else\r
  62         typedef uint32_t TickType_t;\r
  63         #define portMAX_DELAY ( TickType_t ) 0xffffffffUL\r
  64 #endif\r
  65 /*-----------------------------------------------------------*/\r
  66 \r
  67 /* Interrupt control macros. */\r
  68 #define portDISABLE_INTERRUPTS()        asm volatile ( "DINT" ); asm volatile ( "NOP" )\r
  69 #define portENABLE_INTERRUPTS()         asm volatile ( "EINT" ); asm volatile ( "NOP" )\r
  70 /*-----------------------------------------------------------*/\r
  71 \r
  72 /* Critical section control macros. */\r
  73 #define portNO_CRITICAL_SECTION_NESTING         ( ( uint16_t ) 0 )\r
  74 \r
  75 #define portENTER_CRITICAL()                                                                                                    \\r
  76 {                                                                                                                                                               \\r
  77 extern volatile uint16_t usCriticalNesting;                                                     \\r
  78                                                                                                                                                                 \\r
  79         portDISABLE_INTERRUPTS();                                                                                                       \\r
  80                                                                                                                                                                 \\r
  81         /* Now interrupts are disabled ulCriticalNesting can be accessed */                     \\r
  82         /* directly.  Increment ulCriticalNesting to keep a count of how many */        \\r
  83         /* times portENTER_CRITICAL() has been called. */                                                       \\r
  84         usCriticalNesting++;                                                                                                            \\r
  85 }\r
  86 \r
  87 #define portEXIT_CRITICAL()                                                                                                             \\r
  88 {                                                                                                                                                               \\r
  89 extern volatile uint16_t usCriticalNesting;                                                     \\r
  90                                                                                                                                                                 \\r
  91         if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING )                                       \\r
  92         {                                                                                                                                                       \\r
  93                 /* Decrement the nesting count as we are leaving a critical section. */ \\r
  94                 usCriticalNesting--;                                                                                                    \\r
  95                                                                                                                                                                 \\r
  96                 /* If the nesting level has reached zero then interrupts should be */   \\r
  97                 /* re-enabled. */                                                                                                               \\r
  98                 if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING )                              \\r
  99                 {                                                                                                                                               \\r
 100                         portENABLE_INTERRUPTS();                                                                                        \\r
 101                 }                                                                                                                                               \\r
 102         }                                                                                                                                                       \\r
 103 }\r
 104 /*-----------------------------------------------------------*/\r
 105 \r
 106 /* Task utilities. */\r
 107 extern void vPortYield( void ) __attribute__ ( ( naked ) );\r
 108 #define portYIELD()                     vPortYield()\r
 109 #define portNOP()                       asm volatile ( "NOP" )\r
 110 /*-----------------------------------------------------------*/\r
 111 \r
 112 /* Hardwware specifics. */\r
 113 #define portBYTE_ALIGNMENT                      2\r
 114 #define portSTACK_GROWTH                        ( -1 )\r
 115 #define portTICK_PERIOD_MS                      ( ( TickType_t ) 1000 / configTICK_RATE_HZ )\r
 116 /*-----------------------------------------------------------*/\r
 117 \r
 118 /* Task function macros as described on the FreeRTOS.org WEB site. */\r
 119 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 120 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 121 \r
 122 #ifdef __cplusplus\r
 123 }\r
 124 #endif\r
 125 \r
 126 #endif /* PORTMACRO_H */\r
 127 \r