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

   1 /*\r
   2  * FreeRTOS Kernel V10.0.0\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. If you wish to use our Amazon\r
  14  * FreeRTOS name, please do so in a fair use way that does not cause confusion.\r
  15  *\r
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
  18  * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
  19  * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
  20  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
  22  *\r
  23  * http://www.FreeRTOS.org\r
  24  * http://aws.amazon.com/freertos\r
  25  *\r
  26  * 1 tab == 4 spaces!\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               int\r
  52 #define portSTACK_TYPE  uint16_t\r
  53 #define portBASE_TYPE   short\r
  54 \r
  55 typedef portSTACK_TYPE StackType_t;\r
  56 typedef short BaseType_t;\r
  57 typedef unsigned short UBaseType_t;\r
  58 \r
  59 #if( configUSE_16_BIT_TICKS == 1 )\r
  60         typedef uint16_t TickType_t;\r
  61         #define portMAX_DELAY ( TickType_t ) 0xffff\r
  62 #else\r
  63         typedef uint32_t TickType_t;\r
  64         #define portMAX_DELAY ( TickType_t ) 0xffffffffUL\r
  65 #endif\r
  66 /*-----------------------------------------------------------*/\r
  67 \r
  68 /* Interrupt control macros. */\r
  69 #define portDISABLE_INTERRUPTS()        asm volatile ( "DINT" ); asm volatile ( "NOP" )\r
  70 #define portENABLE_INTERRUPTS()         asm volatile ( "EINT" ); asm volatile ( "NOP" )\r
  71 /*-----------------------------------------------------------*/\r
  72 \r
  73 /* Critical section control macros. */\r
  74 #define portNO_CRITICAL_SECTION_NESTING         ( ( uint16_t ) 0 )\r
  75 \r
  76 #define portENTER_CRITICAL()                                                                                                    \\r
  77 {                                                                                                                                                               \\r
  78 extern volatile uint16_t usCriticalNesting;                                                     \\r
  79                                                                                                                                                                 \\r
  80         portDISABLE_INTERRUPTS();                                                                                                       \\r
  81                                                                                                                                                                 \\r
  82         /* Now interrupts are disabled ulCriticalNesting can be accessed */                     \\r
  83         /* directly.  Increment ulCriticalNesting to keep a count of how many */        \\r
  84         /* times portENTER_CRITICAL() has been called. */                                                       \\r
  85         usCriticalNesting++;                                                                                                            \\r
  86 }\r
  87 \r
  88 #define portEXIT_CRITICAL()                                                                                                             \\r
  89 {                                                                                                                                                               \\r
  90 extern volatile uint16_t usCriticalNesting;                                                     \\r
  91                                                                                                                                                                 \\r
  92         if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING )                                       \\r
  93         {                                                                                                                                                       \\r
  94                 /* Decrement the nesting count as we are leaving a critical section. */ \\r
  95                 usCriticalNesting--;                                                                                                    \\r
  96                                                                                                                                                                 \\r
  97                 /* If the nesting level has reached zero then interrupts should be */   \\r
  98                 /* re-enabled. */                                                                                                               \\r
  99                 if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING )                              \\r
 100                 {                                                                                                                                               \\r
 101                         portENABLE_INTERRUPTS();                                                                                        \\r
 102                 }                                                                                                                                               \\r
 103         }                                                                                                                                                       \\r
 104 }\r
 105 /*-----------------------------------------------------------*/\r
 106 \r
 107 /* Task utilities. */\r
 108 extern void vPortYield( void ) __attribute__ ( ( naked ) );\r
 109 #define portYIELD()                     vPortYield()\r
 110 #define portNOP()                       asm volatile ( "NOP" )\r
 111 /*-----------------------------------------------------------*/\r
 112 \r
 113 /* Hardwware specifics. */\r
 114 #define portBYTE_ALIGNMENT                      2\r
 115 #define portSTACK_GROWTH                        ( -1 )\r
 116 #define portTICK_PERIOD_MS                      ( ( TickType_t ) 1000 / configTICK_RATE_HZ )\r
 117 /*-----------------------------------------------------------*/\r
 118 \r
 119 /* Task function macros as described on the FreeRTOS.org WEB site. */\r
 120 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 121 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 122 \r
 123 #ifdef __cplusplus\r
 124 }\r
 125 #endif\r
 126 \r
 127 #endif /* PORTMACRO_H */\r
 128 \r