git.sur5r.net Git - freertos/blob - FreeRTOS/Source/portable/GCC/CORTUS_APS3/portmacro.h

   1 /*\r
   2  * FreeRTOS Kernel V10.0.1\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.\r
  14  *\r
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
  17  * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
  18  * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
  19  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
  20  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
  21  *\r
  22  * http://www.FreeRTOS.org\r
  23  * http://aws.amazon.com/freertos\r
  24  *\r
  25  * 1 tab == 4 spaces!\r
  26  */\r
  27 \r
  28 #ifndef PORTMACRO_H\r
  29 #define PORTMACRO_H\r
  30 \r
  31 #ifdef __cplusplus\r
  32 extern "C" {\r
  33 #endif\r
  34 \r
  35 #include <machine/cpu.h>\r
  36 \r
  37 /*-----------------------------------------------------------\r
  38  * Port specific definitions.\r
  39  *\r
  40  * The settings in this file configure FreeRTOS correctly for the\r
  41  * given hardware and compiler.\r
  42  *\r
  43  * These settings should not be altered.\r
  44  *-----------------------------------------------------------\r
  45  */\r
  46 \r
  47 /* Type definitions. */\r
  48 #define portCHAR                char\r
  49 #define portFLOAT               float\r
  50 #define portDOUBLE              double\r
  51 #define portLONG                long\r
  52 #define portSHORT               short\r
  53 #define portSTACK_TYPE  uint32_t\r
  54 #define portBASE_TYPE   long\r
  55 \r
  56 typedef portSTACK_TYPE StackType_t;\r
  57 typedef long BaseType_t;\r
  58 typedef unsigned long UBaseType_t;\r
  59 \r
  60 #if( configUSE_16_BIT_TICKS == 1 )\r
  61         typedef uint16_t TickType_t;\r
  62         #define portMAX_DELAY ( TickType_t ) 0xffff\r
  63 #else\r
  64         typedef uint32_t TickType_t;\r
  65         #define portMAX_DELAY ( TickType_t ) 0xffffffffUL\r
  66 #endif\r
  67 /*-----------------------------------------------------------*/\r
  68 \r
  69 /* Architecture specifics. */\r
  70 #define portSTACK_GROWTH                                                        ( -1 )\r
  71 #define portTICK_PERIOD_MS                                                      ( ( TickType_t ) 1000 / configTICK_RATE_HZ )\r
  72 #define portBYTE_ALIGNMENT                                                      4\r
  73 #define portNOP()                                                                       __asm__ volatile ( "mov r0, r0" )\r
  74 #define portCRITICAL_NESTING_IN_TCB                                     1\r
  75 #define portIRQ_TRAP_YIELD                                                      31\r
  76 /*-----------------------------------------------------------*/\r
  77 \r
  78 /* Task utilities. */\r
  79 \r
  80 extern void vPortYield( void );\r
  81 \r
  82 /*---------------------------------------------------------------------------*/\r
  83 \r
  84 #define portYIELD()             asm __volatile__( " trap #%0 "::"i"(portIRQ_TRAP_YIELD):"memory")\r
  85 /*---------------------------------------------------------------------------*/\r
  86 \r
  87 extern void vTaskEnterCritical( void );\r
  88 extern void vTaskExitCritical( void );\r
  89 #define portENTER_CRITICAL()            vTaskEnterCritical()\r
  90 #define portEXIT_CRITICAL()                     vTaskExitCritical()\r
  91 /*---------------------------------------------------------------------------*/\r
  92 \r
  93 /* Critical section management. */\r
  94 #define portDISABLE_INTERRUPTS()        cpu_int_disable()\r
  95 #define portENABLE_INTERRUPTS()         cpu_int_enable()\r
  96 \r
  97 /*---------------------------------------------------------------------------*/\r
  98 \r
  99 #define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) if( xHigherPriorityTaskWoken != pdFALSE ) vTaskSwitchContext()\r
 100 \r
 101 /*---------------------------------------------------------------------------*/\r
 102 \r
 103 #define portSAVE_CONTEXT()                              \\r
 104         asm __volatile__                                                                                                                                                                                                \\r
 105         (                                                                                                                                                                                                                               \\r
 106                 "sub    r1, #68                                 \n" /* Make space on the stack for the context. */                                                      \\r
 107                 "std    r2, [r1] +      0                       \n"                                                                                                                                                     \\r
 108                 "stq    r4, [r1] +      8                       \n"                                                                                                                                                     \\r
 109                 "stq    r8, [r1] +      24                      \n"                                                                                                                                                     \\r
 110                 "stq    r12, [r1] +     40                      \n"                                                                                                                                                     \\r
 111                 "mov    r6, rtt                                 \n"                                                                                                                                                     \\r
 112                 "mov    r7, psr                                 \n"                                                                                                                                                     \\r
 113                 "std    r6, [r1] +      56                      \n"                                                                                                                                                     \\r
 114                 "movhi  r2, #16384                              \n"     /* Set the pointer to the IC. */                                                                                \\r
 115                 "ldub   r3, [r2] + 2                    \n"     /* Load the current interrupt mask. */                                                                  \\r
 116                 "st             r3, [r1]+ 64                    \n"     /* Store the interrupt mask on the stack. */                                                    \\r
 117                 "ld             r2, [r0]+short(pxCurrentTCB)    \n"     /* Load the pointer to the TCB. */                                                              \\r
 118                 "st             r1, [r2]                                \n"     /* Save the stack pointer into the TCB. */                                                              \\r
 119                 "mov    r14, r1                                 \n"     /* Compiler expects r14 to be set to the function stack. */                             \\r
 120         );\r
 121 /*---------------------------------------------------------------------------*/\r
 122 \r
 123 #define portRESTORE_CONTEXT()                                                                                                                                                                           \\r
 124         asm __volatile__(                                                                                                                                                                                               \\r
 125                 "ld             r2, [r0]+short(pxCurrentTCB)    \n"     /* Load the TCB to find the stack pointer and context. */               \\r
 126                 "ld             r1, [r2]                                \n"                                                                                                                                                     \\r
 127                 "movhi  r2, #16384                              \n"     /* Set the pointer to the IC. */                                                                                \\r
 128                 "ld             r3, [r1] + 64                   \n"     /* Load the previous interrupt mask. */                                                                 \\r
 129                 "stb    r3, [r2] + 2                    \n"     /* Set the current interrupt mask to be the previous. */                                \\r
 130                 "ldd    r6, [r1] + 56                   \n"     /* Restore context. */                                                                                                  \\r
 131                 "mov    rtt, r6                                 \n"                                                                                                                                                     \\r
 132                 "mov    psr, r7                                 \n"                                                                                                                                                     \\r
 133                 "ldd    r2, [r1] + 0                    \n"                                                                                                                                                     \\r
 134                 "ldq    r4, [r1] +      8                       \n"                                                                                                                                                     \\r
 135                 "ldq    r8, [r1] +      24                      \n"                                                                                                                                                     \\r
 136                 "ldq    r12, [r1] +     40                      \n"                                                                                                                                                     \\r
 137                 "add    r1, #68                                 \n"                                                                                                                                                     \\r
 138                 "rti                                                    \n"                                                                                                                                                     \\r
 139          );\r
 140 \r
 141 /*---------------------------------------------------------------------------*/\r
 142 \r
 143 /* Task function macros as described on the FreeRTOS.org WEB site. */\r
 144 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 145 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
 146 /*---------------------------------------------------------------------------*/\r
 147 \r
 148 #ifdef __cplusplus\r
 149 }\r
 150 #endif\r
 151 \r
 152 #endif /* PORTMACRO_H */\r