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237 lines
9.0 KiB
C
237 lines
9.0 KiB
C
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/*
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* FreeRTOS Kernel V10.0.0
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* Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software. If you wish to use our Amazon
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* FreeRTOS name, please do so in a fair use way that does not cause confusion.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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* 1 tab == 4 spaces!
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*/
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/*
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* Copyright (c) 2015-2019 Cadence Design Systems, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef PORTMACRO_H
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#define PORTMACRO_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef __ASSEMBLER__
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#include <stdint.h>
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#include <xtensa/tie/xt_core.h>
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#include <xtensa/hal.h>
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#include <xtensa/config/core.h>
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#include <xtensa/config/system.h> /* required for XSHAL_CLIB */
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#include <xtensa/xtruntime.h>
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//#include "xtensa_context.h"
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/*-----------------------------------------------------------
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* Port specific definitions.
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*
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* The settings in this file configure FreeRTOS correctly for the
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* given hardware and compiler.
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*
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* These settings should not be altered.
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*-----------------------------------------------------------
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*/
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/* Type definitions. */
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#define portCHAR int8_t
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#define portFLOAT float
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#define portDOUBLE double
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#define portLONG int32_t
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#define portSHORT int16_t
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#define portSTACK_TYPE uint32_t
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#define portBASE_TYPE int
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typedef portSTACK_TYPE StackType_t;
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typedef portBASE_TYPE BaseType_t;
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typedef unsigned portBASE_TYPE UBaseType_t;
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#if( configUSE_16_BIT_TICKS == 1 )
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typedef uint16_t TickType_t;
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#define portMAX_DELAY ( TickType_t ) 0xffff
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#else
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typedef uint32_t TickType_t;
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#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
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#endif
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/*-----------------------------------------------------------*/
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// portbenchmark
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#include "portbenchmark.h"
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/* Critical section management. NW-TODO: replace XTOS_SET_INTLEVEL with more efficient version, if any? */
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// These cannot be nested. They should be used with a lot of care and cannot be called from interrupt level.
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#define portDISABLE_INTERRUPTS() do { XTOS_SET_INTLEVEL(XCHAL_EXCM_LEVEL); portbenchmarkINTERRUPT_DISABLE(); } while (0)
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#define portENABLE_INTERRUPTS() do { portbenchmarkINTERRUPT_RESTORE(0); XTOS_SET_INTLEVEL(0); } while (0)
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// These can be nested
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#define portCRITICAL_NESTING_IN_TCB 1 // For now, let FreeRTOS' (tasks.c) manage critical nesting
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void vTaskEnterCritical(void);
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void vTaskExitCritical(void);
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#define portENTER_CRITICAL() vTaskEnterCritical()
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#define portEXIT_CRITICAL() vTaskExitCritical()
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// Cleaner and preferred solution allows nested interrupts disabling and restoring via local registers or stack.
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// They can be called from interrupts too.
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static inline unsigned portENTER_CRITICAL_NESTED() { unsigned state = XTOS_SET_INTLEVEL(XCHAL_EXCM_LEVEL); portbenchmarkINTERRUPT_DISABLE(); return state; }
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#define portEXIT_CRITICAL_NESTED(state) do { portbenchmarkINTERRUPT_RESTORE(state); XTOS_RESTORE_JUST_INTLEVEL(state); } while (0)
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// These FreeRTOS versions are similar to the nested versions above
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#define portSET_INTERRUPT_MASK_FROM_ISR() portENTER_CRITICAL_NESTED()
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#define portCLEAR_INTERRUPT_MASK_FROM_ISR(state) portEXIT_CRITICAL_NESTED(state)
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/*-----------------------------------------------------------*/
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/* Architecture specifics. */
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#define portSTACK_GROWTH ( -1 )
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#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
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#define portBYTE_ALIGNMENT 4
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#define portNOP() XT_NOP()
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/*-----------------------------------------------------------*/
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/* Fine resolution time */
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#define portGET_RUN_TIME_COUNTER_VALUE() xthal_get_ccount()
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/* Kernel utilities. */
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void vPortYield( void );
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void _frxt_setup_switch( void );
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#define portYIELD() vPortYield()
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#define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) \
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if ( ( xHigherPriorityTaskWoken ) != 0 ) { \
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_frxt_setup_switch(); \
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}
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/*-----------------------------------------------------------*/
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/* Task function macros as described on the FreeRTOS.org WEB site. */
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#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
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#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
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// When coprocessors are defined, we to maintain a pointer to coprocessors area.
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// We currently use a hack: redefine field xMPU_SETTINGS in TCB block as a structure that can hold:
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// MPU wrappers, coprocessor area pointer, trace code structure, and more if needed.
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// The field is normally used for memory protection. FreeRTOS should create another general purpose field.
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typedef struct {
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#if XCHAL_CP_NUM > 0
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volatile StackType_t* coproc_area; // Pointer to coprocessor save area; MUST BE FIRST
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#endif
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#if portUSING_MPU_WRAPPERS
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// Define here mpu_settings, which is port dependent
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int mpu_setting; // Just a dummy example here; MPU not ported to Xtensa yet
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#endif
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#if configUSE_TRACE_FACILITY_2
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struct {
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// Cf. porttraceStamp()
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int taskstamp; /* Stamp from inside task to see where we are */
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int taskstampcount; /* A counter usually incremented when we restart the task's loop */
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} porttrace;
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#endif
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} xMPU_SETTINGS;
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// 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)
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#if (XCHAL_CP_NUM > 0 || configUSE_TRACE_FACILITY_2) && !portUSING_MPU_WRAPPERS // If MPU wrappers not used, we still need to allocate coproc area
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#undef portUSING_MPU_WRAPPERS
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#define portUSING_MPU_WRAPPERS 1 // Enable it to allocate coproc area
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#define MPU_WRAPPERS_H // Override mpu_wrapper.h to disable unwanted code
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#define PRIVILEGED_FUNCTION
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#define PRIVILEGED_DATA
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#endif
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// porttrace
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#if configUSE_TRACE_FACILITY_2
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#include "porttrace.h"
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#endif
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// configASSERT_2 if requested
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#if configASSERT_2
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#include <stdio.h>
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void exit(int);
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#define configASSERT( x ) if (!(x)) { porttracePrint(-1); printf("\nAssertion failed in %s:%d\n", __FILE__, __LINE__); exit(-1); }
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#endif
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/* C library support -- only XCLIB and NEWLIB are supported. */
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/* To enable thread-safe C library support, XT_USE_THREAD_SAFE_CLIB must be
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defined to be > 0 somewhere above or on the command line. */
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#if (XT_USE_THREAD_SAFE_CLIB > 0u) && (XSHAL_CLIB == XTHAL_CLIB_XCLIB)
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extern void vPortClibInit(void);
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// No cleanup necessary at this time.
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#define portCLEAN_UP_TCB(pxTCB)
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#endif // XCLIB support
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#if (XT_USE_THREAD_SAFE_CLIB > 0u) && (XSHAL_CLIB == XTHAL_CLIB_NEWLIB)
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extern void vPortClibInit(void);
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// This C library cleanup is not currently done by FreeRTOS when deleting a task
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#include <stdio.h>
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#define portCLEAN_UP_TCB(pxTCB) vPortCleanUpTcbClib(&((pxTCB)->xNewLib_reent))
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static inline void vPortCleanUpTcbClib(struct _reent *ptr)
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{
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FILE * fp = &(ptr->__sf[0]);
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int i;
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for (i = 0; i < 3; ++i, ++fp) {
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fp->_close = NULL;
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}
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}
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#endif // NEWLIB support
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#endif // __ASSEMBLER__
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#ifdef __cplusplus
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}
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#endif
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#endif /* PORTMACRO_H */
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