/* FreeRTOS V9.0.0 - Copyright (C) 2016 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 #ifndef __ASSEMBLER__ #include #include #include #include #include /* required for XSHAL_CLIB */ #include //#include "xtensa_context.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 int8_t #define portFLOAT float #define portDOUBLE double #define portLONG int32_t #define portSHORT int16_t #define portSTACK_TYPE uint32_t #define portBASE_TYPE int typedef portSTACK_TYPE StackType_t; typedef portBASE_TYPE BaseType_t; typedef unsigned portBASE_TYPE UBaseType_t; #if( configUSE_16_BIT_TICKS == 1 ) typedef uint16_t TickType_t; #define portMAX_DELAY ( TickType_t ) 0xffff #else typedef uint32_t TickType_t; #define portMAX_DELAY ( TickType_t ) 0xffffffffUL #endif /*-----------------------------------------------------------*/ // portbenchmark #include "portbenchmark.h" /* Critical section management. NW-TODO: replace XTOS_SET_INTLEVEL with more efficient version, if any? */ // These cannot be nested. They should be used with a lot of care and cannot be called from interrupt level. #define portDISABLE_INTERRUPTS() do { XTOS_SET_INTLEVEL(XCHAL_EXCM_LEVEL); portbenchmarkINTERRUPT_DISABLE(); } while (0) #define portENABLE_INTERRUPTS() do { portbenchmarkINTERRUPT_RESTORE(0); XTOS_SET_INTLEVEL(0); } while (0) // These can be nested #define portCRITICAL_NESTING_IN_TCB 1 // For now, let FreeRTOS' (tasks.c) manage critical nesting void vTaskEnterCritical(void); void vTaskExitCritical(void); #define portENTER_CRITICAL() vTaskEnterCritical() #define portEXIT_CRITICAL() vTaskExitCritical() // Cleaner and preferred solution allows nested interrupts disabling and restoring via local registers or stack. // They can be called from interrupts too. static inline unsigned portENTER_CRITICAL_NESTED() { unsigned state = XTOS_SET_INTLEVEL(XCHAL_EXCM_LEVEL); portbenchmarkINTERRUPT_DISABLE(); return state; } #define portEXIT_CRITICAL_NESTED(state) do { portbenchmarkINTERRUPT_RESTORE(state); XTOS_RESTORE_JUST_INTLEVEL(state); } while (0) // These FreeRTOS versions are similar to the nested versions above #define portSET_INTERRUPT_MASK_FROM_ISR() portENTER_CRITICAL_NESTED() #define portCLEAR_INTERRUPT_MASK_FROM_ISR(state) portEXIT_CRITICAL_NESTED(state) /*-----------------------------------------------------------*/ /* Architecture specifics. */ #define portSTACK_GROWTH ( -1 ) #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #define portBYTE_ALIGNMENT 4 #define portNOP() XT_NOP() /*-----------------------------------------------------------*/ /* Fine resolution time */ #define portGET_RUN_TIME_COUNTER_VALUE() xthal_get_ccount() /* Kernel utilities. */ void vPortYield( void ); void _frxt_setup_switch( void ); #define portYIELD() vPortYield() #define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) \ if ( ( xHigherPriorityTaskWoken ) != 0 ) { \ _frxt_setup_switch(); \ } /*-----------------------------------------------------------*/ /* 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 ) // When coprocessors are defined, we to maintain a pointer to coprocessors area. // We currently use a hack: redefine field xMPU_SETTINGS in TCB block as a structure that can hold: // MPU wrappers, coprocessor area pointer, trace code structure, and more if needed. // The field is normally used for memory protection. FreeRTOS should create another general purpose field. typedef struct { #if XCHAL_CP_NUM > 0 volatile StackType_t* coproc_area; // Pointer to coprocessor save area; MUST BE FIRST #endif #if portUSING_MPU_WRAPPERS // Define here mpu_settings, which is port dependent int mpu_setting; // Just a dummy example here; MPU not ported to Xtensa yet #endif #if configUSE_TRACE_FACILITY_2 struct { // Cf. porttraceStamp() int taskstamp; /* Stamp from inside task to see where we are */ int taskstampcount; /* A counter usually incremented when we restart the task's loop */ } porttrace; #endif } xMPU_SETTINGS; // Main hack to use MPU_wrappers even when no MPU is defined (warning: mpu_setting should not be accessed; otherwise move this above xMPU_SETTINGS) #if (XCHAL_CP_NUM > 0 || configUSE_TRACE_FACILITY_2) && !portUSING_MPU_WRAPPERS // If MPU wrappers not used, we still need to allocate coproc area #undef portUSING_MPU_WRAPPERS #define portUSING_MPU_WRAPPERS 1 // Enable it to allocate coproc area #define MPU_WRAPPERS_H // Override mpu_wrapper.h to disable unwanted code #define PRIVILEGED_FUNCTION #define PRIVILEGED_DATA #endif // porttrace #if configUSE_TRACE_FACILITY_2 #include "porttrace.h" #endif // configASSERT_2 if requested #if configASSERT_2 #include void exit(int); #define configASSERT( x ) if (!(x)) { porttracePrint(-1); printf("\nAssertion failed in %s:%d\n", __FILE__, __LINE__); exit(-1); } #endif /* C library support -- only XCLIB and NEWLIB are supported. */ /* To enable thread-safe C library support, XT_USE_THREAD_SAFE_CLIB must be defined to be > 0 somewhere above or on the command line. */ #if (XT_USE_THREAD_SAFE_CLIB > 0u) && (XSHAL_CLIB == XTHAL_CLIB_XCLIB) extern void vPortClibInit(void); // No cleanup necessary at this time. #define portCLEAN_UP_TCB(pxTCB) #endif // XCLIB support #if (XT_USE_THREAD_SAFE_CLIB > 0u) && (XSHAL_CLIB == XTHAL_CLIB_NEWLIB) extern void vPortClibInit(void); // This C library cleanup is not currently done by FreeRTOS when deleting a task #include #define portCLEAN_UP_TCB(pxTCB) vPortCleanUpTcbClib(&((pxTCB)->xNewLib_reent)) static inline void vPortCleanUpTcbClib(struct _reent *ptr) { FILE * fp = &(ptr->__sf[0]); int i; for (i = 0; i < 3; ++i, ++fp) { fp->_close = NULL; } } #endif // NEWLIB support #endif // __ASSEMBLER__ #ifdef __cplusplus } #endif #endif /* PORTMACRO_H */