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/*
* FreeRTOS Kernel V10.5.0
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
#ifndef PORTMACRO_H
#define PORTMACRO_H
#ifdef __IAR_SYSTEMS_ICC__
#ifdef __cplusplus
extern "C" {
#endif
/*-----------------------------------------------------------
* Port specific definitions.
*
* The settings in this file configure FreeRTOS correctly for the
* given hardware and compiler.
*
* These settings should not be altered.
*-----------------------------------------------------------
*/
#if __DATA_MODEL__ == __DATA_MODEL_FAR__ && __CODE_MODEL__ == __CODE_MODEL_NEAR__
#warning This port has not been tested with your selected memory model combination. If a far data model is required it is recommended to also use a far code model.
#endif
#if __DATA_MODEL__ == __DATA_MODEL_NEAR__ && __CODE_MODEL__ == __CODE_MODEL_FAR__
#warning This port has not been tested with your selected memory model combination. If a far code model is required it is recommended to also use a far data model.
#endif
/* Type definitions. */
#define portCHAR char
#define portFLOAT float
#define portDOUBLE double
#define portLONG long
#define portSHORT short
#define portSTACK_TYPE uint16_t
#define portBASE_TYPE short
typedef portSTACK_TYPE StackType_t;
typedef short BaseType_t;
typedef unsigned short UBaseType_t;
#if __DATA_MODEL__ == __DATA_MODEL_FAR__
#define portPOINTER_SIZE_TYPE uint32_t
#else
#define portPOINTER_SIZE_TYPE uint16_t
#endif
#if ( configUSE_16_BIT_TICKS == 1 )
typedef unsigned int TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffff
#else
typedef uint32_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
#endif
/*-----------------------------------------------------------*/
/* Interrupt control macros. */
#define portDISABLE_INTERRUPTS() __asm ( "DI" )
#define portENABLE_INTERRUPTS() __asm ( "EI" )
/*-----------------------------------------------------------*/
/* Critical section control macros. */
#define portNO_CRITICAL_SECTION_NESTING ( ( uint16_t ) 0 )
#define portENTER_CRITICAL() \
{ \
extern volatile uint16_t usCriticalNesting; \
\
portDISABLE_INTERRUPTS(); \
\
/* Now interrupts are disabled ulCriticalNesting can be accessed */ \
/* directly. Increment ulCriticalNesting to keep a count of how many */ \
/* times portENTER_CRITICAL() has been called. */ \
usCriticalNesting++; \
}
#define portEXIT_CRITICAL() \
{ \
extern volatile uint16_t usCriticalNesting; \
\
if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING ) \
{ \
/* Decrement the nesting count when leaving a critical section. */ \
usCriticalNesting--; \
\
/* If the nesting level has reached zero then interrupts should be */ \
/* re-enabled. */ \
if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING ) \
{ \
portENABLE_INTERRUPTS(); \
} \
} \
}
/*-----------------------------------------------------------*/
/* Task utilities. */
#define portNOP() __asm( "NOP" )
#define portYIELD() __asm( "BRK" )
#define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) do { if( xHigherPriorityTaskWoken ) vTaskSwitchContext(); } while( 0 )
/*-----------------------------------------------------------*/
/* Hardwware specifics. */
#define portBYTE_ALIGNMENT 2
#define portSTACK_GROWTH ( -1 )
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
/*-----------------------------------------------------------*/
/* 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 /* __cplusplus */
#endif /* __IAR_SYSTEMS_ICC__ */
;//-----------------------------------------------------------------------------
;// The macros below are processed for asm sources which include portmacro.h.
;//-----------------------------------------------------------------------------
#ifdef __IAR_SYSTEMS_ASM__
;/* Functions and variables used by this file. */
;//-----------------------------------------------------------------------------
EXTERN _pxCurrentTCB
EXTERN _usCriticalNesting
;/* Macro used to declutter calls, depends on the selected code model. */
;//-----------------------------------------------------------------------------
#if __CODE_MODEL__ == __CODE_MODEL_FAR__
#define RCALL(X) CALL F:X
#else
#define RCALL(X) CALL X
#endif
;/*-----------------------------------------------------------------------------
; * portSAVE_CONTEXT MACRO
; * Saves the context of the general purpose registers, CS and ES (only in __far
; * memory mode) registers the _usCriticalNesting value and the Stack Pointer
; * of the active Task onto the task stack.
; *---------------------------------------------------------------------------*/
portSAVE_CONTEXT MACRO
PUSH AX ; // Save AX Register to stack.
PUSH HL
#if __CODE_MODEL__ == __CODE_MODEL_FAR__
MOV A, CS ; // Save CS register.
XCH A, X
MOV A, ES ; // Save ES register.
PUSH AX
#else
MOV A, CS ; // Save CS register.
PUSH AX
#endif
PUSH DE ; // Save the remaining general purpose registers.
PUSH BC
MOVW AX, _usCriticalNesting ; // Save the _usCriticalNesting value.
PUSH AX
MOVW AX, _pxCurrentTCB ; // Save the Task stack pointer.
MOVW HL, AX
MOVW AX, SP
MOVW [HL], AX
ENDM
;//-----------------------------------------------------------------------------
;/*-----------------------------------------------------------------------------
; * portRESTORE_CONTEXT MACRO
; * Restores the task Stack Pointer then use this to restore _usCriticalNesting,
; * general purpose registers and the CS and ES (only in __far memory mode)
; * of the selected task from the task stack.
; *---------------------------------------------------------------------------*/
portRESTORE_CONTEXT MACRO
MOVW AX, _pxCurrentTCB ; // Restore the Task stack pointer.
MOVW HL, AX
MOVW AX, [HL]
MOVW SP, AX
POP AX ; // Restore _usCriticalNesting value.
MOVW _usCriticalNesting, AX
POP BC ; // Restore the necessary general purpose registers.
POP DE
#if __CODE_MODEL__ == __CODE_MODEL_FAR__
POP AX ; // Restore the ES register.
MOV ES, A
XCH A, X ; // Restore the CS register.
MOV CS, A
#else
POP AX
MOV CS, A ; // Restore CS register.
#endif
POP HL ; // Restore general purpose register HL.
POP AX ; // Restore AX.
ENDM
;//-----------------------------------------------------------------------------
#endif /* __IAR_SYSTEMS_ASM__ */
#endif /* PORTMACRO_H */
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