git.sur5r.net Git - freertos/blob - FreeRTOS/Source/portable/CCS/MSP430X/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 /*-----------------------------------------------------------\r
  33  * Port specific definitions.\r
  34  *\r
  35  * The settings in this file configure FreeRTOS correctly for the\r
  36  * given hardware and compiler.\r
  37  *\r
  38  * These settings should not be altered.\r
  39  *-----------------------------------------------------------\r
  40  */\r
  41 \r
  42 /* Hardware includes. */\r
  43 #include "msp430.h"\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 portBASE_TYPE   portSHORT\r
  52 \r
  53 /* The stack type changes depending on the data model. */\r
  54 #ifdef __LARGE_DATA_MODEL__\r
  55         #define portSTACK_TYPE uint32_t\r
  56 #else\r
  57         #define portSTACK_TYPE uint16_t\r
  58         #define portPOINTER_SIZE_TYPE uint16_t\r
  59 #endif\r
  60 \r
  61 typedef portSTACK_TYPE StackType_t;\r
  62 typedef short BaseType_t;\r
  63 typedef unsigned short UBaseType_t;\r
  64 \r
  65 #if( configUSE_16_BIT_TICKS == 1 )\r
  66         typedef uint16_t TickType_t;\r
  67         #define portMAX_DELAY ( TickType_t ) 0xffff\r
  68 #else\r
  69         typedef uint32_t TickType_t;\r
  70         #define portMAX_DELAY ( TickType_t ) 0xffffffffUL\r
  71 #endif\r
  72 \r
  73 /*-----------------------------------------------------------*/\r
  74 \r
  75 /* Interrupt control macros. */\r
  76 #define portDISABLE_INTERRUPTS()        _disable_interrupt(); _nop()\r
  77 #define portENABLE_INTERRUPTS()         _enable_interrupt(); _nop()\r
  78 /*-----------------------------------------------------------*/\r
  79 \r
  80 /* Critical section control macros. */\r
  81 #define portNO_CRITICAL_SECTION_NESTING         ( ( uint16_t ) 0 )\r
  82 \r
  83 #define portENTER_CRITICAL()                                                                                                    \\r
  84 {                                                                                                                                                               \\r
  85 extern volatile uint16_t usCriticalNesting;                                                                             \\r
  86                                                                                                                                                                 \\r
  87         portDISABLE_INTERRUPTS();                                                                                                       \\r
  88                                                                                                                                                                 \\r
  89         /* Now interrupts are disabled usCriticalNesting can be accessed */                     \\r
  90         /* directly.  Increment ulCriticalNesting to keep a count of how many */        \\r
  91         /* times portENTER_CRITICAL() has been called. */                                                       \\r
  92         usCriticalNesting++;                                                                                                            \\r
  93 }\r
  94 \r
  95 #define portEXIT_CRITICAL()                                                                                                             \\r
  96 {                                                                                                                                                               \\r
  97 extern volatile uint16_t usCriticalNesting;                                                                             \\r
  98                                                                                                                                                                 \\r
  99         if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING )                                       \\r
 100         {                                                                                                                                                       \\r
 101                 /* Decrement the nesting count as we are leaving a critical section. */ \\r
 102                 usCriticalNesting--;                                                                                                    \\r
 103                                                                                                                                                                 \\r
 104                 /* If the nesting level has reached zero then interrupts should be */   \\r
 105                 /* re-enabled. */                                                                                                               \\r
 106                 if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING )                              \\r
 107                 {                                                                                                                                               \\r
 108                         portENABLE_INTERRUPTS();                                                                                        \\r
 109                 }                                                                                                                                               \\r
 110         }                                                                                                                                                       \\r
 111 }\r
 112 /*-----------------------------------------------------------*/\r
 113 \r
 114 /* Task utilities. */\r
 115 \r
 116 /*\r
 117  * Manual context switch called by portYIELD or taskYIELD.\r
 118  */\r
 119 extern void vPortYield( void );\r
 120 #define portYIELD() vPortYield()\r
 121 /*-----------------------------------------------------------*/\r
 122 \r
 123 /* Hardware specifics. */\r
 124 #define portBYTE_ALIGNMENT                      2\r
 125 #define portSTACK_GROWTH                        ( -1 )\r
 126 #define portTICK_PERIOD_MS                      ( ( TickType_t ) 1000 / configTICK_RATE_HZ )\r
 127 #define portNOP()                                       __no_operation()\r
 128 /*-----------------------------------------------------------*/\r
 129 \r
 130 /* Task function macros as described on the FreeRTOS.org WEB site. */\r
 131 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 132 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 133 \r
 134 extern void vTaskSwitchContext( void );\r
 135 #define portYIELD_FROM_ISR( x ) if( x ) vPortYield()\r
 136 \r
 137 void vApplicationSetupTimerInterrupt( void );\r
 138 \r
 139 /* sizeof( int ) != sizeof( long ) so a full printf() library is required if\r
 140 run time stats information is to be displayed. */\r
 141 #define portLU_PRINTF_SPECIFIER_REQUIRED\r
 142 \r
 143 #endif /* PORTMACRO_H */\r
 144 \r