git.sur5r.net Git - freertos/blob - FreeRTOS/Source/portable/GCC/H8S2329/portmacro.h

   1 /*\r
   2     FreeRTOS V7.4.1 - Copyright (C) 2013 Real Time Engineers Ltd.\r
   3 \r
   4     FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME.  PLEASE VISIT\r
   5     http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
   6 \r
   7     ***************************************************************************\r
   8      *                                                                       *\r
   9      *    FreeRTOS tutorial books are available in pdf and paperback.        *\r
  10      *    Complete, revised, and edited pdf reference manuals are also       *\r
  11      *    available.                                                         *\r
  12      *                                                                       *\r
  13      *    Purchasing FreeRTOS documentation will not only help you, by       *\r
  14      *    ensuring you get running as quickly as possible and with an        *\r
  15      *    in-depth knowledge of how to use FreeRTOS, it will also help       *\r
  16      *    the FreeRTOS project to continue with its mission of providing     *\r
  17      *    professional grade, cross platform, de facto standard solutions    *\r
  18      *    for microcontrollers - completely free of charge!                  *\r
  19      *                                                                       *\r
  20      *    >>> See http://www.FreeRTOS.org/Documentation for details. <<<     *\r
  21      *                                                                       *\r
  22      *    Thank you for using FreeRTOS, and thank you for your support!      *\r
  23      *                                                                       *\r
  24     ***************************************************************************\r
  25 \r
  26 \r
  27     This file is part of the FreeRTOS distribution.\r
  28 \r
  29     FreeRTOS is free software; you can redistribute it and/or modify it under\r
  30     the terms of the GNU General Public License (version 2) as published by the\r
  31     Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
  32 \r
  33     >>>>>>NOTE<<<<<< The modification to the GPL is included to allow you to\r
  34     distribute a combined work that includes FreeRTOS without being obliged to\r
  35     provide the source code for proprietary components outside of the FreeRTOS\r
  36     kernel.\r
  37 \r
  38     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
  39     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
  40     FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more\r
  41     details. You should have received a copy of the GNU General Public License\r
  42     and the FreeRTOS license exception along with FreeRTOS; if not it can be\r
  43     viewed here: http://www.freertos.org/a00114.html and also obtained by\r
  44     writing to Real Time Engineers Ltd., contact details for whom are available\r
  45     on the FreeRTOS WEB site.\r
  46 \r
  47     1 tab == 4 spaces!\r
  48 \r
  49     ***************************************************************************\r
  50      *                                                                       *\r
  51      *    Having a problem?  Start by reading the FAQ "My application does   *\r
  52      *    not run, what could be wrong?"                                     *\r
  53      *                                                                       *\r
  54      *    http://www.FreeRTOS.org/FAQHelp.html                               *\r
  55      *                                                                       *\r
  56     ***************************************************************************\r
  57 \r
  58 \r
  59     http://www.FreeRTOS.org - Documentation, books, training, latest versions, \r
  60     license and Real Time Engineers Ltd. contact details.\r
  61 \r
  62     http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
  63     including FreeRTOS+Trace - an indispensable productivity tool, and our new\r
  64     fully thread aware and reentrant UDP/IP stack.\r
  65 \r
  66     http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High \r
  67     Integrity Systems, who sell the code with commercial support, \r
  68     indemnification and middleware, under the OpenRTOS brand.\r
  69     \r
  70     http://www.SafeRTOS.com - High Integrity Systems also provide a safety \r
  71     engineered and independently SIL3 certified version for use in safety and \r
  72     mission critical applications that require provable dependability.\r
  73 */\r
  74 \r
  75 \r
  76 #ifndef PORTMACRO_H\r
  77 #define PORTMACRO_H\r
  78 \r
  79 #ifdef __cplusplus\r
  80 extern "C" {\r
  81 #endif\r
  82 \r
  83 /*-----------------------------------------------------------\r
  84  * Port specific definitions.  \r
  85  *\r
  86  * The settings in this file configure FreeRTOS correctly for the\r
  87  * given hardware and compiler.\r
  88  *\r
  89  * These settings should not be altered.\r
  90  *-----------------------------------------------------------\r
  91  */\r
  92 \r
  93 /* Type definitions. */\r
  94 #define portCHAR                char\r
  95 #define portFLOAT               float\r
  96 #define portDOUBLE              double\r
  97 #define portLONG                long\r
  98 #define portSHORT               short\r
  99 #define portSTACK_TYPE  unsigned portCHAR\r
 100 #define portBASE_TYPE   char\r
 101 \r
 102 #if( configUSE_16_BIT_TICKS == 1 )\r
 103         typedef unsigned portSHORT portTickType;\r
 104         #define portMAX_DELAY ( portTickType ) 0xffff\r
 105 #else\r
 106         typedef unsigned portLONG portTickType;\r
 107         #define portMAX_DELAY ( portTickType ) 0xffffffff\r
 108 #endif\r
 109 /*-----------------------------------------------------------*/\r
 110 \r
 111 /* Hardware specifics. */\r
 112 #define portBYTE_ALIGNMENT                      2\r
 113 #define portSTACK_GROWTH                        ( -1 )\r
 114 #define portTICK_RATE_MS                        ( ( portTickType ) 1000 / configTICK_RATE_HZ )          \r
 115 #define portYIELD()                                     asm volatile( "TRAPA #0" )\r
 116 #define portNOP()                                       asm volatile( "NOP" )\r
 117 /*-----------------------------------------------------------*/\r
 118 \r
 119 /* Critical section handling. */\r
 120 #define portENABLE_INTERRUPTS()         asm volatile( "ANDC     #0x7F, CCR" );\r
 121 #define portDISABLE_INTERRUPTS()        asm volatile( "ORC  #0x80, CCR" );\r
 122 \r
 123 /* Push the CCR then disable interrupts. */\r
 124 #define portENTER_CRITICAL()            asm volatile( "STC      CCR, @-ER7" ); \\r
 125                                         portDISABLE_INTERRUPTS();\r
 126 \r
 127 /* Pop the CCR to set the interrupt masking back to its previous state. */\r
 128 #define  portEXIT_CRITICAL()            asm volatile( "LDC  @ER7+, CCR" );\r
 129 /*-----------------------------------------------------------*/\r
 130 \r
 131 /* Task utilities. */\r
 132 \r
 133 /* Context switch macros.  These macros are very simple as the context \r
 134 is saved simply by selecting the saveall attribute of the context switch \r
 135 interrupt service routines.  These macros save and restore the stack\r
 136 pointer to the TCB. */\r
 137 \r
 138 #define portSAVE_STACK_POINTER()                                                                \\r
 139 extern void* pxCurrentTCB;                                                                              \\r
 140                                                                                                                                 \\r
 141         asm volatile(                                                                                           \\r
 142                                         "MOV.L  @_pxCurrentTCB, ER5                     \n\t"   \\r
 143                                         "MOV.L  ER7, @ER5                                       \n\t"   \\r
 144                                 );                                                                                              \\r
 145         ( void ) pxCurrentTCB;\r
 146 \r
 147 \r
 148 #define portRESTORE_STACK_POINTER()                                                             \\r
 149 extern void* pxCurrentTCB;                                                                              \\r
 150                                                                                                                                 \\r
 151         asm volatile(                                                                                           \\r
 152                                         "MOV.L  @_pxCurrentTCB, ER5                     \n\t"   \\r
 153                                         "MOV.L  @ER5, ER7                                       \n\t"   \\r
 154                                 );                                                                                              \\r
 155         ( void ) pxCurrentTCB;\r
 156 \r
 157 /*-----------------------------------------------------------*/\r
 158 \r
 159 /* Macros to allow a context switch from within an application ISR. */\r
 160 \r
 161 #define portENTER_SWITCHING_ISR() portSAVE_STACK_POINTER(); {\r
 162 \r
 163 #define portEXIT_SWITCHING_ISR( x )                                                     \\r
 164         if( x )                                                                                                 \\r
 165         {                                                                                                               \\r
 166                 extern void vTaskSwitchContext( void );                         \\r
 167                 vTaskSwitchContext();                                                           \\r
 168         }                                                                                                               \\r
 169         } portRESTORE_STACK_POINTER();\r
 170 /*-----------------------------------------------------------*/\r
 171 \r
 172 /* Task function macros as described on the FreeRTOS.org WEB site. */\r
 173 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 174 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 175 \r
 176 #ifdef __cplusplus\r
 177 }\r
 178 #endif\r
 179 \r
 180 #endif /* PORTMACRO_H */\r
 181 \r