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

   1 /*\r
   2         FreeRTOS.org V4.0.2 - Copyright (C) 2003-2006 Richard Barry.\r
   3 \r
   4         This file is part of the FreeRTOS.org distribution.\r
   5 \r
   6         FreeRTOS.org is free software; you can redistribute it and/or modify\r
   7         it under the terms of the GNU General Public License as published by\r
   8         the Free Software Foundation; either version 2 of the License, or\r
   9         (at your option) any later version.\r
  10 \r
  11         FreeRTOS.org is distributed in the hope that it will be useful,\r
  12         but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14         GNU General Public License for more details.\r
  15 \r
  16         You should have received a copy of the GNU General Public License\r
  17         along with FreeRTOS.org; if not, write to the Free Software\r
  18         Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\r
  19 \r
  20         A special exception to the GPL can be applied should you wish to distribute\r
  21         a combined work that includes FreeRTOS.org, without being obliged to provide\r
  22         the source code for any proprietary components.  See the licensing section \r
  23         of http://www.FreeRTOS.org for full details of how and when the exception\r
  24         can be applied.\r
  25 \r
  26         ***************************************************************************\r
  27         See http://www.FreeRTOS.org for documentation, latest information, license \r
  28         and contact details.  Please ensure to read the configuration and relevant \r
  29         port sections of the online documentation.\r
  30         ***************************************************************************\r
  31 */\r
  32 \r
  33 #ifndef PORTMACRO_H\r
  34 #define PORTMACRO_H\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               short\r
  52 #define portSTACK_TYPE  unsigned portLONG\r
  53 #define portBASE_TYPE   portLONG\r
  54 \r
  55 #if( configUSE_16_BIT_TICKS == 1 )\r
  56         typedef unsigned portSHORT portTickType;\r
  57         #define portMAX_DELAY ( portTickType ) 0xffff\r
  58 #else\r
  59         typedef unsigned portLONG portTickType;\r
  60         #define portMAX_DELAY ( portTickType ) 0xffffffff\r
  61 #endif\r
  62 /*-----------------------------------------------------------*/ \r
  63 \r
  64 /* Interrupt control macros. */\r
  65 void microblaze_disable_interrupts( void );\r
  66 void microblaze_enable_interrupts( void );\r
  67 #define portDISABLE_INTERRUPTS()        microblaze_disable_interrupts()\r
  68 #define portENABLE_INTERRUPTS()         microblaze_enable_interrupts()\r
  69 /*-----------------------------------------------------------*/\r
  70 \r
  71 /* Critical section macros. */\r
  72 void vPortEnterCritical( void );\r
  73 void vPortExitCritical( void );\r
  74 #define portENTER_CRITICAL()            {                                                                                                               \\r
  75                                                                                 extern unsigned portBASE_TYPE uxCriticalNesting;        \\r
  76                                                                                 microblaze_disable_interrupts();                                        \\r
  77                                                                                 uxCriticalNesting++;                                                            \\r
  78                                                                         }\r
  79                                                                         \r
  80 #define portEXIT_CRITICAL()                     {                                                                                                               \\r
  81                                                                                 extern unsigned portBASE_TYPE uxCriticalNesting;        \\r
  82                                                                                 /* Interrupts are disabled, so we can */                        \\r
  83                                                                                 /* access the variable directly. */                                     \\r
  84                                                                                 uxCriticalNesting--;                                                            \\r
  85                                                                                 if( uxCriticalNesting == 0 )                    \\r
  86                                                                                 {                                                                                                       \\r
  87                                                                                         /* The nesting has unwound and we                               \\r
  88                                                                                         can enable interrupts again. */                                 \\r
  89                                                                                         portENABLE_INTERRUPTS();                                                \\r
  90                                                                                 }                                                                                                       \\r
  91                                                                         }\r
  92 \r
  93 /*-----------------------------------------------------------*/\r
  94 \r
  95 /* Task utilities. */\r
  96 void vPortYield( void );\r
  97 #define portYIELD() vPortYield()\r
  98 \r
  99 void vTaskSwitchContext();\r
 100 #define portYIELD_FROM_ISR() vTaskSwitchContext()\r
 101 /*-----------------------------------------------------------*/\r
 102 \r
 103 /* Hardware specifics. */\r
 104 #define portBYTE_ALIGNMENT                      4\r
 105 #define portSTACK_GROWTH                        ( -1 )\r
 106 #define portTICK_RATE_MS                        ( ( portTickType ) 1000 / configTICK_RATE_HZ )          \r
 107 #define portNOP()                                       asm volatile ( "NOP" )\r
 108 /*-----------------------------------------------------------*/\r
 109 \r
 110 /* Task function macros as described on the FreeRTOS.org WEB site. */\r
 111 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 112 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 113 \r
 114 #endif /* PORTMACRO_H */\r
 115 \r