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

   1 /*\r
   2     FreeRTOS V7.5.1 - Copyright (C) 2013 Real Time Engineers Ltd.\r
   3 \r
   4     VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
   5 \r
   6     ***************************************************************************\r
   7      *                                                                       *\r
   8      *    FreeRTOS provides completely free yet professionally developed,    *\r
   9      *    robust, strictly quality controlled, supported, and cross          *\r
  10      *    platform software that has become a de facto standard.             *\r
  11      *                                                                       *\r
  12      *    Help yourself get started quickly and support the FreeRTOS         *\r
  13      *    project by purchasing a FreeRTOS tutorial book, reference          *\r
  14      *    manual, or both from: http://www.FreeRTOS.org/Documentation        *\r
  15      *                                                                       *\r
  16      *    Thank you!                                                         *\r
  17      *                                                                       *\r
  18     ***************************************************************************\r
  19 \r
  20     This file is part of the FreeRTOS distribution.\r
  21 \r
  22     FreeRTOS is free software; you can redistribute it and/or modify it under\r
  23     the terms of the GNU General Public License (version 2) as published by the\r
  24     Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.\r
  25 \r
  26     >>! NOTE: The modification to the GPL is included to allow you to distribute\r
  27     >>! a combined work that includes FreeRTOS without being obliged to provide\r
  28     >>! the source code for proprietary components outside of the FreeRTOS\r
  29     >>! kernel.\r
  30 \r
  31     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
  32     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
  33     FOR A PARTICULAR PURPOSE.  Full license text is available from the following\r
  34     link: http://www.freertos.org/a00114.html\r
  35 \r
  36     1 tab == 4 spaces!\r
  37 \r
  38     ***************************************************************************\r
  39      *                                                                       *\r
  40      *    Having a problem?  Start by reading the FAQ "My application does   *\r
  41      *    not run, what could be wrong?"                                     *\r
  42      *                                                                       *\r
  43      *    http://www.FreeRTOS.org/FAQHelp.html                               *\r
  44      *                                                                       *\r
  45     ***************************************************************************\r
  46 \r
  47     http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
  48     license and Real Time Engineers Ltd. contact details.\r
  49 \r
  50     http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
  51     including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
  52     compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
  53 \r
  54     http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High\r
  55     Integrity Systems to sell under the OpenRTOS brand.  Low cost OpenRTOS\r
  56     licenses offer ticketed support, indemnification and middleware.\r
  57 \r
  58     http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
  59     engineered and independently SIL3 certified version for use in safety and\r
  60     mission critical applications that require provable dependability.\r
  61 \r
  62     1 tab == 4 spaces!\r
  63 */\r
  64 \r
  65 #ifndef PORTMACRO_H\r
  66 #define PORTMACRO_H\r
  67 \r
  68 #ifdef __cplusplus\r
  69 extern "C" {\r
  70 #endif\r
  71 \r
  72 /*-----------------------------------------------------------\r
  73  * Port specific definitions.  \r
  74  *\r
  75  * The settings in this file configure FreeRTOS correctly for the\r
  76  * given hardware and compiler.\r
  77  *\r
  78  * These settings should not be altered.\r
  79  *-----------------------------------------------------------\r
  80  */\r
  81 \r
  82 /* Type definitions. */\r
  83 #define portCHAR                char\r
  84 #define portFLOAT               float\r
  85 #define portDOUBLE              double\r
  86 #define portLONG                long\r
  87 #define portSHORT               short\r
  88 #define portSTACK_TYPE  unsigned portLONG\r
  89 #define portBASE_TYPE   portLONG\r
  90 \r
  91 #if( configUSE_16_BIT_TICKS == 1 )\r
  92         typedef unsigned portSHORT portTickType;\r
  93         #define portMAX_DELAY ( portTickType ) 0xffff\r
  94 #else\r
  95         typedef unsigned portLONG portTickType;\r
  96         #define portMAX_DELAY ( portTickType ) 0xffffffff\r
  97 #endif\r
  98 /*-----------------------------------------------------------*/ \r
  99 \r
 100 /* Interrupt control macros. */\r
 101 void microblaze_disable_interrupts( void );\r
 102 void microblaze_enable_interrupts( void );\r
 103 #define portDISABLE_INTERRUPTS()        microblaze_disable_interrupts()\r
 104 #define portENABLE_INTERRUPTS()         microblaze_enable_interrupts()\r
 105 /*-----------------------------------------------------------*/\r
 106 \r
 107 /* Critical section macros. */\r
 108 void vPortEnterCritical( void );\r
 109 void vPortExitCritical( void );\r
 110 #define portENTER_CRITICAL()            {                                                                                                               \\r
 111                                                                                 extern unsigned portBASE_TYPE uxCriticalNesting;        \\r
 112                                                                                 microblaze_disable_interrupts();                                        \\r
 113                                                                                 uxCriticalNesting++;                                                            \\r
 114                                                                         }\r
 115                                                                         \r
 116 #define portEXIT_CRITICAL()                     {                                                                                                               \\r
 117                                                                                 extern unsigned portBASE_TYPE uxCriticalNesting;        \\r
 118                                                                                 /* Interrupts are disabled, so we can */                        \\r
 119                                                                                 /* access the variable directly. */                                     \\r
 120                                                                                 uxCriticalNesting--;                                                            \\r
 121                                                                                 if( uxCriticalNesting == 0 )                    \\r
 122                                                                                 {                                                                                                       \\r
 123                                                                                         /* The nesting has unwound and we                               \\r
 124                                                                                         can enable interrupts again. */                                 \\r
 125                                                                                         portENABLE_INTERRUPTS();                                                \\r
 126                                                                                 }                                                                                                       \\r
 127                                                                         }\r
 128 \r
 129 /*-----------------------------------------------------------*/\r
 130 \r
 131 /* Task utilities. */\r
 132 void vPortYield( void );\r
 133 #define portYIELD() vPortYield()\r
 134 \r
 135 void vTaskSwitchContext();\r
 136 #define portYIELD_FROM_ISR() vTaskSwitchContext()\r
 137 /*-----------------------------------------------------------*/\r
 138 \r
 139 /* Hardware specifics. */\r
 140 #define portBYTE_ALIGNMENT                      4\r
 141 #define portSTACK_GROWTH                        ( -1 )\r
 142 #define portTICK_RATE_MS                        ( ( portTickType ) 1000 / configTICK_RATE_HZ )          \r
 143 #define portNOP()                                       asm volatile ( "NOP" )\r
 144 /*-----------------------------------------------------------*/\r
 145 \r
 146 /* Task function macros as described on the FreeRTOS.org WEB site. */\r
 147 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 148 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 149 \r
 150 #ifdef __cplusplus\r
 151 }\r
 152 #endif\r
 153 \r
 154 #endif /* PORTMACRO_H */\r
 155 \r