164 lines
5.8 KiB
C
164 lines
5.8 KiB
C
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/*
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* FreeRTOS Kernel V10.3.1
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* Copyright (C) 2020 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.
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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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* http://www.FreeRTOS.org
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* http://aws.amazon.com/freertos
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*
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* 1 tab == 4 spaces!
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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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/*-----------------------------------------------------------
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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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#if __riscv_xlen == 64
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#define portSTACK_TYPE uint64_t
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#define portBASE_TYPE int64_t
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#define portUBASE_TYPE uint64_t
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#define portMAX_DELAY ( TickType_t ) 0xffffffffffffffffUL
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#define portPOINTER_SIZE_TYPE uint64_t
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#elif __riscv_xlen == 32
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#define portSTACK_TYPE uint32_t
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#define portBASE_TYPE int32_t
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#define portUBASE_TYPE uint32_t
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#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
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#else
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#error Assembler did not define __riscv_xlen
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#endif
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typedef portSTACK_TYPE StackType_t;
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typedef portBASE_TYPE BaseType_t;
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typedef portUBASE_TYPE UBaseType_t;
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typedef portUBASE_TYPE TickType_t;
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/* Legacy type definitions. */
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#define portCHAR char
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#define portFLOAT float
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#define portDOUBLE double
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#define portLONG long
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#define portSHORT short
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/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
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not need to be guarded with a critical section. */
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#define portTICK_TYPE_IS_ATOMIC 1
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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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#ifdef __riscv64
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#error This is the RV32 port that has not yet been adapted for 64.
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#define portBYTE_ALIGNMENT 16
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#else
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#define portBYTE_ALIGNMENT 16
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#endif
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/*-----------------------------------------------------------*/
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/* Scheduler utilities. */
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extern void vTaskSwitchContext( void );
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#define portYIELD() __asm volatile( "ecall" );
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#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) vTaskSwitchContext()
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#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
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/*-----------------------------------------------------------*/
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/* Critical section management. */
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#define portCRITICAL_NESTING_IN_TCB 1
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extern void vTaskEnterCritical( void );
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extern void vTaskExitCritical( void );
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#define portSET_INTERRUPT_MASK_FROM_ISR() 0
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#define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedStatusValue ) ( void ) uxSavedStatusValue
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#define portDISABLE_INTERRUPTS() __asm volatile( "csrc mstatus, 8" )
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#define portENABLE_INTERRUPTS() __asm volatile( "csrs mstatus, 8" )
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#define portENTER_CRITICAL() vTaskEnterCritical()
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#define portEXIT_CRITICAL() vTaskExitCritical()
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/*-----------------------------------------------------------*/
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/* Architecture specific optimisations. */
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#ifndef configUSE_PORT_OPTIMISED_TASK_SELECTION
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#define configUSE_PORT_OPTIMISED_TASK_SELECTION 1
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#endif
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#if( configUSE_PORT_OPTIMISED_TASK_SELECTION == 1 )
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/* Check the configuration. */
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#if( configMAX_PRIORITIES > 32 )
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#error configUSE_PORT_OPTIMISED_TASK_SELECTION can only be set to 1 when configMAX_PRIORITIES is less than or equal to 32. It is very rare that a system requires more than 10 to 15 difference priorities as tasks that share a priority will time slice.
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#endif
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/* Store/clear the ready priorities in a bit map. */
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#define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( 1UL << ( uxPriority ) )
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#define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( 1UL << ( uxPriority ) )
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/*-----------------------------------------------------------*/
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#define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31UL - __builtin_clz( uxReadyPriorities ) )
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#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */
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/*-----------------------------------------------------------*/
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/* Task function macros as described on the FreeRTOS.org WEB site. These are
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not necessary for to use this port. They are defined so the common demo files
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(which build with all the ports) will build. */
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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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/*-----------------------------------------------------------*/
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#define portNOP() __asm volatile ( " nop " )
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#define portINLINE __inline
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#ifndef portFORCE_INLINE
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#define portFORCE_INLINE inline __attribute__(( always_inline))
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#endif
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//#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" )
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#define portMEMORY_BARRIER()
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/*-----------------------------------------------------------*/
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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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