git.sur5r.net Git - freertos/blob - FreeRTOS/Source/portable/IAR/MSP430X/portmacro.h

   1 /*\r
   2     FreeRTOS V8.2.3 - Copyright (C) 2015 Real Time Engineers Ltd.\r
   3     All rights reserved\r
   4 \r
   5     VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
   6 \r
   7     This file is part of the FreeRTOS distribution.\r
   8 \r
   9     FreeRTOS is free software; you can redistribute it and/or modify it under\r
  10     the terms of the GNU General Public License (version 2) as published by the\r
  11     Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.\r
  12 \r
  13     ***************************************************************************\r
  14     >>!   NOTE: The modification to the GPL is included to allow you to     !<<\r
  15     >>!   distribute a combined work that includes FreeRTOS without being   !<<\r
  16     >>!   obliged to provide the source code for proprietary components     !<<\r
  17     >>!   outside of the FreeRTOS kernel.                                   !<<\r
  18     ***************************************************************************\r
  19 \r
  20     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
  21     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
  22     FOR A PARTICULAR PURPOSE.  Full license text is available on the following\r
  23     link: http://www.freertos.org/a00114.html\r
  24 \r
  25     ***************************************************************************\r
  26      *                                                                       *\r
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  36      *                                                                       *\r
  37     ***************************************************************************\r
  38 \r
  39     http://www.FreeRTOS.org/FAQHelp.html - Having a problem?  Start by reading\r
  40     the FAQ page "My application does not run, what could be wrong?".  Have you\r
  41     defined configASSERT()?\r
  42 \r
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  62 \r
  63     http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
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  65     mission critical applications that require provable dependability.\r
  66 \r
  67     1 tab == 4 spaces!\r
  68 */\r
  69 \r
  70 #ifndef PORTMACRO_H\r
  71 #define PORTMACRO_H\r
  72 \r
  73 /*-----------------------------------------------------------\r
  74  * Port specific definitions.\r
  75  *\r
  76  * The settings in this file configure FreeRTOS correctly for the\r
  77  * given hardware and compiler.\r
  78  *\r
  79  * These settings should not be altered.\r
  80  *-----------------------------------------------------------\r
  81  */\r
  82 \r
  83 /* Hardware includes. */\r
  84 #include "msp430.h"\r
  85 \r
  86 /* Type definitions. */\r
  87 #define portCHAR                char\r
  88 #define portFLOAT               float\r
  89 #define portDOUBLE              double\r
  90 #define portLONG                long\r
  91 #define portSHORT               int\r
  92 #define portBASE_TYPE   short\r
  93 \r
  94 /* The stack type changes depending on the data model. */\r
  95 #if( __DATA_MODEL__ == __DATA_MODEL_SMALL__ )\r
  96         #define portSTACK_TYPE uint16_t\r
  97         #define portPOINTER_SIZE_TYPE uint16_t\r
  98 #else\r
  99         #define portSTACK_TYPE uint32_t\r
 100 #endif\r
 101 \r
 102 typedef portSTACK_TYPE StackType_t;\r
 103 typedef short BaseType_t;\r
 104 typedef unsigned short UBaseType_t;\r
 105 \r
 106 #if( configUSE_16_BIT_TICKS == 1 )\r
 107         typedef uint16_t TickType_t;\r
 108         #define portMAX_DELAY ( TickType_t ) 0xffff\r
 109 #else\r
 110         typedef uint32_t TickType_t;\r
 111         #define portMAX_DELAY ( TickType_t ) 0xffffffffUL\r
 112 #endif\r
 113 \r
 114 /*-----------------------------------------------------------*/\r
 115 \r
 116 /* Interrupt control macros. */\r
 117 #define portDISABLE_INTERRUPTS()        _DINT(); _NOP()\r
 118 #define portENABLE_INTERRUPTS()         _EINT(); _NOP()\r
 119 /*-----------------------------------------------------------*/\r
 120 \r
 121 /* Critical section control macros. */\r
 122 #define portNO_CRITICAL_SECTION_NESTING         ( ( uint16_t ) 0 )\r
 123 \r
 124 #define portENTER_CRITICAL()                                                                                                    \\r
 125 {                                                                                                                                                               \\r
 126 extern volatile uint16_t usCriticalNesting;                                                                             \\r
 127                                                                                                                                                                 \\r
 128         portDISABLE_INTERRUPTS();                                                                                                       \\r
 129                                                                                                                                                                 \\r
 130         /* Now interrupts are disabled usCriticalNesting can be accessed */                     \\r
 131         /* directly.  Increment ulCriticalNesting to keep a count of how many */        \\r
 132         /* times portENTER_CRITICAL() has been called. */                                                       \\r
 133         usCriticalNesting++;                                                                                                            \\r
 134 }\r
 135 \r
 136 #define portEXIT_CRITICAL()                                                                                                             \\r
 137 {                                                                                                                                                               \\r
 138 extern volatile uint16_t usCriticalNesting;                                                                             \\r
 139                                                                                                                                                                 \\r
 140         if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING )                                       \\r
 141         {                                                                                                                                                       \\r
 142                 /* Decrement the nesting count as we are leaving a critical section. */ \\r
 143                 usCriticalNesting--;                                                                                                    \\r
 144                                                                                                                                                                 \\r
 145                 /* If the nesting level has reached zero then interrupts should be */   \\r
 146                 /* re-enabled. */                                                                                                               \\r
 147                 if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING )                              \\r
 148                 {                                                                                                                                               \\r
 149                         portENABLE_INTERRUPTS();                                                                                        \\r
 150                 }                                                                                                                                               \\r
 151         }                                                                                                                                                       \\r
 152 }\r
 153 /*-----------------------------------------------------------*/\r
 154 \r
 155 /* Task utilities. */\r
 156 \r
 157 /*\r
 158  * Manual context switch called by portYIELD or taskYIELD.\r
 159  */\r
 160 extern void vPortYield( void );\r
 161 #define portYIELD() vPortYield()\r
 162 /*-----------------------------------------------------------*/\r
 163 \r
 164 /* Hardware specifics. */\r
 165 #define portBYTE_ALIGNMENT                      2\r
 166 #define portSTACK_GROWTH                        ( -1 )\r
 167 #define portTICK_PERIOD_MS                      ( ( TickType_t ) 1000 / configTICK_RATE_HZ )\r
 168 #define portNOP()                                       __no_operation()\r
 169 /*-----------------------------------------------------------*/\r
 170 \r
 171 /* Task function macros as described on the FreeRTOS.org WEB site. */\r
 172 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 173 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 174 \r
 175 #define portYIELD_FROM_ISR( x ) if( x ) vPortYield()\r
 176 \r
 177 void vApplicationSetupTimerInterrupt( void );\r
 178 \r
 179 /* sizeof( int ) != sizeof( long ) so a full printf() library is required if\r
 180 run time stats information is to be displayed. */\r
 181 #define portLU_PRINTF_SPECIFIER_REQUIRED\r
 182 \r
 183 #endif /* PORTMACRO_H */\r
 184 \r