/* | |
FreeRTOS V7.5.3 - Copyright (C) 2013 Real Time Engineers Ltd. | |
All rights reserved | |
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. | |
*************************************************************************** | |
* * | |
* FreeRTOS provides completely free yet professionally developed, * | |
* robust, strictly quality controlled, supported, and cross * | |
* platform software that has become a de facto standard. * | |
* * | |
* Help yourself get started quickly and support the FreeRTOS * | |
* project by purchasing a FreeRTOS tutorial book, reference * | |
* manual, or both from: http://www.FreeRTOS.org/Documentation * | |
* * | |
* Thank you! * | |
* * | |
*************************************************************************** | |
This file is part of the FreeRTOS distribution. | |
FreeRTOS is free software; you can redistribute it and/or modify it under | |
the terms of the GNU General Public License (version 2) as published by the | |
Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception. | |
>>! NOTE: The modification to the GPL is included to allow you to distribute | |
>>! a combined work that includes FreeRTOS without being obliged to provide | |
>>! the source code for proprietary components outside of the FreeRTOS | |
>>! kernel. | |
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY | |
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
FOR A PARTICULAR PURPOSE. Full license text is available from the following | |
link: http://www.freertos.org/a00114.html | |
1 tab == 4 spaces! | |
*************************************************************************** | |
* * | |
* Having a problem? Start by reading the FAQ "My application does * | |
* not run, what could be wrong?" * | |
* * | |
* http://www.FreeRTOS.org/FAQHelp.html * | |
* * | |
*************************************************************************** | |
http://www.FreeRTOS.org - Documentation, books, training, latest versions, | |
license and Real Time Engineers Ltd. contact details. | |
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, | |
including FreeRTOS+Trace - an indispensable productivity tool, a DOS | |
compatible FAT file system, and our tiny thread aware UDP/IP stack. | |
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High | |
Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS | |
licenses offer ticketed support, indemnification and middleware. | |
http://www.SafeRTOS.com - High Integrity Systems also provide a safety | |
engineered and independently SIL3 certified version for use in safety and | |
mission critical applications that require provable dependability. | |
1 tab == 4 spaces! | |
*/ | |
#ifndef PORTMACRO_H | |
#define PORTMACRO_H | |
#ifdef __cplusplus | |
extern "C" { | |
#endif | |
#include <machine/cpu.h> | |
/*----------------------------------------------------------- | |
* Port specific definitions. | |
* | |
* The settings in this file configure FreeRTOS correctly for the | |
* given hardware and compiler. | |
* | |
* These settings should not be altered. | |
*----------------------------------------------------------- | |
*/ | |
/* Type definitions. */ | |
#define portCHAR char | |
#define portFLOAT float | |
#define portDOUBLE double | |
#define portLONG long | |
#define portSHORT short | |
#define portSTACK_TYPE unsigned portLONG | |
#define portBASE_TYPE portLONG | |
#if( configUSE_16_BIT_TICKS == 1 ) | |
typedef unsigned portSHORT portTickType; | |
#define portMAX_DELAY ( portTickType ) 0xffff | |
#else | |
typedef unsigned portLONG portTickType; | |
#define portMAX_DELAY ( portTickType ) 0xffffffff | |
#endif | |
/*-----------------------------------------------------------*/ | |
/* Architecture specifics. */ | |
#define portSTACK_GROWTH ( -1 ) | |
#define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ ) | |
#define portBYTE_ALIGNMENT 4 | |
#define portNOP() __asm__ volatile ( "mov r0, r0" ) | |
#define portCRITICAL_NESTING_IN_TCB 1 | |
#define portIRQ_TRAP_YIELD 31 | |
/*-----------------------------------------------------------*/ | |
/* Task utilities. */ | |
extern void vPortYield( void ); | |
/*---------------------------------------------------------------------------*/ | |
#define portYIELD() asm __volatile__( " trap #%0 "::"i"(portIRQ_TRAP_YIELD):"memory") | |
/*---------------------------------------------------------------------------*/ | |
extern void vTaskEnterCritical( void ); | |
extern void vTaskExitCritical( void ); | |
#define portENTER_CRITICAL() vTaskEnterCritical() | |
#define portEXIT_CRITICAL() vTaskExitCritical() | |
/*---------------------------------------------------------------------------*/ | |
/* Critical section management. */ | |
#define portDISABLE_INTERRUPTS() cpu_int_disable() | |
#define portENABLE_INTERRUPTS() cpu_int_enable() | |
/*---------------------------------------------------------------------------*/ | |
#define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) if( xHigherPriorityTaskWoken != pdFALSE ) vTaskSwitchContext() | |
/*---------------------------------------------------------------------------*/ | |
#define portSAVE_CONTEXT() \ | |
asm __volatile__ \ | |
( \ | |
"sub r1, #68 \n" /* Make space on the stack for the context. */ \ | |
"std r2, [r1] + 0 \n" \ | |
"stq r4, [r1] + 8 \n" \ | |
"stq r8, [r1] + 24 \n" \ | |
"stq r12, [r1] + 40 \n" \ | |
"mov r6, rtt \n" \ | |
"mov r7, psr \n" \ | |
"std r6, [r1] + 56 \n" \ | |
"movhi r2, #16384 \n" /* Set the pointer to the IC. */ \ | |
"ldub r3, [r2] + 2 \n" /* Load the current interrupt mask. */ \ | |
"st r3, [r1]+ 64 \n" /* Store the interrupt mask on the stack. */ \ | |
"ld r2, [r0]+short(pxCurrentTCB) \n" /* Load the pointer to the TCB. */ \ | |
"st r1, [r2] \n" /* Save the stack pointer into the TCB. */ \ | |
"mov r14, r1 \n" /* Compiler expects r14 to be set to the function stack. */ \ | |
); | |
/*---------------------------------------------------------------------------*/ | |
#define portRESTORE_CONTEXT() \ | |
asm __volatile__( \ | |
"ld r2, [r0]+short(pxCurrentTCB) \n" /* Load the TCB to find the stack pointer and context. */ \ | |
"ld r1, [r2] \n" \ | |
"movhi r2, #16384 \n" /* Set the pointer to the IC. */ \ | |
"ld r3, [r1] + 64 \n" /* Load the previous interrupt mask. */ \ | |
"stb r3, [r2] + 2 \n" /* Set the current interrupt mask to be the previous. */ \ | |
"ldd r6, [r1] + 56 \n" /* Restore context. */ \ | |
"mov rtt, r6 \n" \ | |
"mov psr, r7 \n" \ | |
"ldd r2, [r1] + 0 \n" \ | |
"ldq r4, [r1] + 8 \n" \ | |
"ldq r8, [r1] + 24 \n" \ | |
"ldq r12, [r1] + 40 \n" \ | |
"add r1, #68 \n" \ | |
"rti \n" \ | |
); | |
/*---------------------------------------------------------------------------*/ | |
/* Task function macros as described on the FreeRTOS.org WEB site. */ | |
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters ) | |
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters ) | |
/*---------------------------------------------------------------------------*/ | |
#ifdef __cplusplus | |
} | |
#endif | |
#endif /* PORTMACRO_H */ |