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

   1 /*\r
   2     FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd.\r
   3         \r
   4 \r
   5     ***************************************************************************\r
   6      *                                                                       *\r
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  14      *    the FreeRTOS project to continue with its mission of providing     *\r
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  17      *                                                                       *\r
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  22     ***************************************************************************\r
  23 \r
  24 \r
  25     This file is part of the FreeRTOS distribution.\r
  26 \r
  27     FreeRTOS is free software; you can redistribute it and/or modify it under\r
  28     the terms of the GNU General Public License (version 2) as published by the\r
  29     Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
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  32     provide the source code for proprietary components outside of the FreeRTOS\r
  33     kernel.  FreeRTOS is distributed in the hope that it will be useful, but\r
  34     WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
  35     or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for\r
  36     more details. You should have received a copy of the GNU General Public\r
  37     License and the FreeRTOS license exception along with FreeRTOS; if not it\r
  38     can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
  39     by writing to Richard Barry, contact details for whom are available on the\r
  40     FreeRTOS WEB site.\r
  41 \r
  42     1 tab == 4 spaces!\r
  43     \r
  44     ***************************************************************************\r
  45      *                                                                       *\r
  46      *    Having a problem?  Start by reading the FAQ "My application does   *\r
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  49      *    http://www.FreeRTOS.org/FAQHelp.html                               *\r
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  51     ***************************************************************************\r
  52 \r
  53     \r
  54     http://www.FreeRTOS.org - Documentation, training, latest information, \r
  55     license and contact details.\r
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  57     http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
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  60     Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
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  64     the SafeRTOS brand: http://www.SafeRTOS.com.\r
  65 */\r
  66 \r
  67 #ifndef PORTMACRO_H\r
  68 #define PORTMACRO_H\r
  69 \r
  70 #ifdef __cplusplus\r
  71 extern "C" {\r
  72 #endif\r
  73 \r
  74 /*-----------------------------------------------------------\r
  75  * Port specific definitions.  \r
  76  *\r
  77  * The settings in this file configure FreeRTOS correctly for the\r
  78  * given hardware and compiler.\r
  79  *\r
  80  * These settings should not be altered.\r
  81  *-----------------------------------------------------------\r
  82  */\r
  83 \r
  84 /* Type definitions. */\r
  85 #define portCHAR                char\r
  86 #define portFLOAT               float\r
  87 #define portDOUBLE              double\r
  88 #define portLONG                long\r
  89 #define portSHORT               short\r
  90 #define portSTACK_TYPE  unsigned portLONG\r
  91 #define portBASE_TYPE   portLONG\r
  92 \r
  93 #if( configUSE_16_BIT_TICKS == 1 )\r
  94         typedef unsigned portSHORT portTickType;\r
  95         #define portMAX_DELAY ( portTickType ) 0xffff\r
  96 #else\r
  97         typedef unsigned portLONG portTickType;\r
  98         #define portMAX_DELAY ( portTickType ) 0xffffffff\r
  99 #endif\r
 100 /*-----------------------------------------------------------*/ \r
 101 \r
 102 /* Interrupt control macros. */\r
 103 void microblaze_disable_interrupts( void );\r
 104 void microblaze_enable_interrupts( void );\r
 105 #define portDISABLE_INTERRUPTS()        microblaze_disable_interrupts()\r
 106 #define portENABLE_INTERRUPTS()         microblaze_enable_interrupts()\r
 107 /*-----------------------------------------------------------*/\r
 108 \r
 109 /* Critical section macros. */\r
 110 void vPortEnterCritical( void );\r
 111 void vPortExitCritical( void );\r
 112 #define portENTER_CRITICAL()            {                                                                                                               \\r
 113                                                                                 extern unsigned portBASE_TYPE uxCriticalNesting;        \\r
 114                                                                                 microblaze_disable_interrupts();                                        \\r
 115                                                                                 uxCriticalNesting++;                                                            \\r
 116                                                                         }\r
 117                                                                         \r
 118 #define portEXIT_CRITICAL()                     {                                                                                                               \\r
 119                                                                                 extern unsigned portBASE_TYPE uxCriticalNesting;        \\r
 120                                                                                 /* Interrupts are disabled, so we can */                        \\r
 121                                                                                 /* access the variable directly. */                                     \\r
 122                                                                                 uxCriticalNesting--;                                                            \\r
 123                                                                                 if( uxCriticalNesting == 0 )                    \\r
 124                                                                                 {                                                                                                       \\r
 125                                                                                         /* The nesting has unwound and we                               \\r
 126                                                                                         can enable interrupts again. */                                 \\r
 127                                                                                         portENABLE_INTERRUPTS();                                                \\r
 128                                                                                 }                                                                                                       \\r
 129                                                                         }\r
 130 \r
 131 /*-----------------------------------------------------------*/\r
 132 \r
 133 /* Task utilities. */\r
 134 void vPortYield( void );\r
 135 #define portYIELD() vPortYield()\r
 136 \r
 137 void vTaskSwitchContext();\r
 138 #define portYIELD_FROM_ISR() vTaskSwitchContext()\r
 139 /*-----------------------------------------------------------*/\r
 140 \r
 141 /* Hardware specifics. */\r
 142 #define portBYTE_ALIGNMENT                      4\r
 143 #define portSTACK_GROWTH                        ( -1 )\r
 144 #define portTICK_RATE_MS                        ( ( portTickType ) 1000 / configTICK_RATE_HZ )          \r
 145 #define portNOP()                                       asm volatile ( "NOP" )\r
 146 /*-----------------------------------------------------------*/\r
 147 \r
 148 /* Task function macros as described on the FreeRTOS.org WEB site. */\r
 149 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 150 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 151 \r
 152 #ifdef __cplusplus\r
 153 }\r
 154 #endif\r
 155 \r
 156 #endif /* PORTMACRO_H */\r
 157 \r