| /* | |
| FreeRTOS V7.5.2 - Copyright (C) 2013 Real Time Engineers Ltd. | |
| 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/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 */ |