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/*
FreeRTOS V7.4.0 - Copyright (C) 2013 Real Time Engineers Ltd.
FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
***************************************************************************
* *
* FreeRTOS tutorial books are available in pdf and paperback. *
* Complete, revised, and edited pdf reference manuals are also *
* available. *
* *
* Purchasing FreeRTOS documentation will not only help you, by *
* ensuring you get running as quickly as possible and with an *
* in-depth knowledge of how to use FreeRTOS, it will also help *
* the FreeRTOS project to continue with its mission of providing *
* professional grade, cross platform, de facto standard solutions *
* for microcontrollers - completely free of charge! *
* *
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
* *
* Thank you for using FreeRTOS, and thank you for your support! *
* *
***************************************************************************
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. See the GNU General Public License for more
details. You should have received a copy of the GNU General Public License
and the FreeRTOS license exception along with FreeRTOS; if not itcan be
viewed here: http://www.freertos.org/a00114.html and also obtained by
writing to Real Time Engineers Ltd., contact details for whom are available
on the FreeRTOS WEB site.
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, and our new
fully thread aware and reentrant UDP/IP stack.
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
Integrity Systems, who sell the code with commercial support,
indemnification and middleware, under the OpenRTOS brand.
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.
*/
#ifndef PORTMACRO_H
#define PORTMACRO_H
#ifdef __cplusplus
extern "C" {
#endif
#include <machine/ic.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
#define portKERNEL_INTERRUPT_PRIORITY_LEVEL 0
#define portSYSTEM_INTERRUPT_PRIORITY_LEVEL 0
/*-----------------------------------------------------------*/
/* 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() ic->cpl = ( portSYSTEM_INTERRUPT_PRIORITY_LEVEL + 1 )
#define portENABLE_INTERRUPTS() ic->cpl = portKERNEL_INTERRUPT_PRIORITY_LEVEL
/*---------------------------------------------------------------------------*/
#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 */
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