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Moved proj up

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This commit is contained in:
Timo Niemann
2026-06-04 10:21:56 +02:00
parent aea013305e
commit 99fb345151
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FreeRTOS/portable/IAR/RL78/port.c
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/*
* FreeRTOS Kernel V11.3.0
* 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
*
*/
/* Scheduler includes. */
#include "FreeRTOS.h"
#include "task.h"
/* The critical nesting value is initialised to a non zero value to ensure
* interrupts don't accidentally become enabled before the scheduler is started. */
#define portINITIAL_CRITICAL_NESTING ( ( uint16_t ) 10 )
/* Initial PSW value allocated to a newly created task.
* 1100011000000000
* ||||||||-------------- Fill byte
* |||||||--------------- Carry Flag cleared
* |||||----------------- In-service priority Flags set to low level
* ||||------------------ Register bank Select 0 Flag cleared
* |||------------------- Auxiliary Carry Flag cleared
* ||-------------------- Register bank Select 1 Flag cleared
* |--------------------- Zero Flag set
* ---------------------- Global Interrupt Flag set (enabled)
*/
#define portPSW ( 0xc6UL )
/* The address of the pxCurrentTCB variable, but don't know or need to know its
* type. */
typedef void TCB_t;
extern volatile TCB_t * volatile pxCurrentTCB;
/* Each task maintains a count of the critical section nesting depth. Each time
* a critical section is entered the count is incremented. Each time a critical
* section is exited the count is decremented - with interrupts only being
* re-enabled if the count is zero.
*
* usCriticalNesting will get set to zero when the scheduler starts, but must
* not be initialised to zero as that could cause problems during the startup
* sequence. */
volatile uint16_t usCriticalNesting = portINITIAL_CRITICAL_NESTING;
/*-----------------------------------------------------------*/
/*
* Sets up the periodic ISR used for the RTOS tick.
*/
extern void vApplicationSetupTimerInterrupt( void );
/*
* Starts the scheduler by loading the context of the first Task to run.
* (implemented in portasm.s).
*/
extern void vPortStartFirstTask( void );
/*
* Used to catch tasks that attempt to return from their implementing function.
*/
static void prvTaskExitError( void );
/*-----------------------------------------------------------*/
/*
* Initialise the stack of a task to look exactly as if a call to
* portSAVE_CONTEXT had been called.
*
* See the header file portable.h.
*/
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
TaskFunction_t pxCode,
void * pvParameters )
{
uint32_t * pulLocal;
/* With large data sizeof( StackType_t ) == 2, and
* sizeof( StackType_t * ) == 4. With small data
* sizeof( StackType_t ) == 2 and sizeof( StackType_t * ) == 2. */
#if __DATA_MODEL__ == __DATA_MODEL_FAR__
{
/* Far pointer parameters are passed using the A:DE registers (24-bit).
* Although they are stored in memory as a 32-bit value. Hence decrement
* the stack pointer, so 2 bytes are left for the contents of A, before
* storing the pvParameters value. */
pxTopOfStack--;
pulLocal = ( uint32_t * ) pxTopOfStack;
#if __CALLING_CONVENTION__ == __CC_V2__
/* V2: parameter via A:DE, do not push pvParameters on stack */
#else
/* V1 or unknown: keep stack write */
*pulLocal = ( uint32_t ) pvParameters;
pxTopOfStack--;
#endif
/* The return address is a 32-bit value. So decrement the stack pointer
* in order to make extra room needed to store the correct value. See the
* comments above the prvTaskExitError() prototype at the top of this file. */
pxTopOfStack--;
pulLocal = ( uint32_t * ) pxTopOfStack;
*pulLocal = ( uint32_t ) prvTaskExitError;
pxTopOfStack--;
/* The task function start address combined with the PSW is also stored
* as a 32-bit value. So leave a space for the second two bytes. */
pxTopOfStack--;
pulLocal = ( uint32_t * ) pxTopOfStack;
*pulLocal = ( ( ( uint32_t ) pxCode ) | ( portPSW << 24UL ) );
pxTopOfStack--;
/* Register image on task entry. */
#if __CALLING_CONVENTION__ == __CC_V2__
{
uint32_t p = ( uint32_t ) pvParameters;
uint16_t de_init = (uint16_t)( p & 0xFFFFU );
uint16_t ax_init = (uint16_t)( ((p >> 16) & 0xFFU) << 8 );
/* AX register image */
*pxTopOfStack = ( StackType_t ) ax_init;
pxTopOfStack--;
/* HL register image (dummy) */
*pxTopOfStack = ( StackType_t ) 0x2222;
pxTopOfStack--;
/* CS:ES register image */
*pxTopOfStack = ( StackType_t ) 0x0F00;
pxTopOfStack--;
/* DE register image */
*pxTopOfStack = ( StackType_t ) de_init;
pxTopOfStack--;
}
#else
/* An initial value for the AX register. */
*pxTopOfStack = ( StackType_t ) 0x1111;
pxTopOfStack--;
/* HL register image (dummy) */
*pxTopOfStack = ( StackType_t ) 0x2222;
pxTopOfStack--;
/* CS:ES register image */
*pxTopOfStack = ( StackType_t ) 0x0F00;
pxTopOfStack--;
/* DE register image (dummy) */
*pxTopOfStack = ( StackType_t ) 0xDEDE;
pxTopOfStack--;
#endif
/* BC remains a dummy value (not used for parameter passing). */
*pxTopOfStack = ( StackType_t ) 0xBCBC;
pxTopOfStack--;
}
#else /* if __DATA_MODEL__ == __DATA_MODEL_FAR__ */
{
/* The return address, leaving space for the first two bytes of the
* 32-bit value. See the comments above the prvTaskExitError() prototype
* at the top of this file. */
pxTopOfStack--;
pulLocal = ( uint32_t * ) pxTopOfStack;
*pulLocal = ( uint32_t ) prvTaskExitError;
pxTopOfStack--;
/* Task function. Again as it is written as a 32-bit value a space is
* left on the stack for the second two bytes. */
pxTopOfStack--;
/* Task function start address combined with the PSW. */
pulLocal = ( uint32_t * ) pxTopOfStack;
*pulLocal = ( ( ( uint32_t ) pxCode ) | ( portPSW << 24UL ) );
pxTopOfStack--;
/* The parameter is passed in AX. */
*pxTopOfStack = ( StackType_t ) pvParameters;
pxTopOfStack--;
/* An initial value for the HL register. */
*pxTopOfStack = ( StackType_t ) 0x2222;
pxTopOfStack--;
/* CS and ES registers. */
*pxTopOfStack = ( StackType_t ) 0x0F00;
pxTopOfStack--;
/* The remaining general purpose registers DE and BC */
*pxTopOfStack = ( StackType_t ) 0xDEDE;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xBCBC;
pxTopOfStack--;
}
#endif /* __DATA_MODEL__ */
/* Finally the critical section nesting count is set to zero when the task
* first starts. */
*pxTopOfStack = ( StackType_t ) portNO_CRITICAL_SECTION_NESTING;
/* Return a pointer to the top of the stack that has been generated so
* it can be stored in the task control block for the task. */
return pxTopOfStack;
}
/*-----------------------------------------------------------*/
static void prvTaskExitError( void )
{
/* A function that implements a task must not exit or attempt to return to
* its caller as there is nothing to return to. If a task wants to exit it
* should instead call vTaskDelete( NULL ).
*
* Artificially force an assert() to be triggered if configASSERT() is
* defined, then stop here so application writers can catch the error. */
configASSERT( usCriticalNesting == ~0U );
portDISABLE_INTERRUPTS();
for( ; ; )
{
}
}
/*-----------------------------------------------------------*/
BaseType_t xPortStartScheduler( void )
{
/* Setup the hardware to generate the tick. Interrupts are disabled when
* this function is called. */
vApplicationSetupTimerInterrupt();
/* Restore the context of the first task that is going to run. */
vPortStartFirstTask();
/* Execution should not reach here as the tasks are now running! */
return pdTRUE;
}
/*-----------------------------------------------------------*/
void vPortEndScheduler( void )
{
/* It is unlikely that the RL78 port will get stopped. */
}
/*-----------------------------------------------------------*/
FreeRTOS/portable/IAR/RL78/portasm.s
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;/*
; * FreeRTOS Kernel V11.3.0
; * 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
; *
; */
#include "portmacro.h"
EXTERN _vTaskSwitchContext
EXTERN _xTaskIncrementTick
EXTERN _interrupt_vector_table
PUBLIC _vPortYield
PUBLIC _vPortStartFirstTask
PUBLIC _vPortTickISR
#if !defined(__IASMRL78__) || (__VER__ < 310)
#error "This port requires the IAR Assembler for RL78 version 3.10 or later."
#endif
;-------------------------------------------------------------------------------
; FreeRTOS yield handler. This is installed as the BRK software interrupt
; handler.
;-------------------------------------------------------------------------------
SECTION `.text`:CODE:ROOT(1)
_vPortYield:
portSAVE_CONTEXT ; Save the context of the current task.
RCALL (_vTaskSwitchContext) ; Call the scheduler to select the next task.
portRESTORE_CONTEXT ; Restore the context of the next task to run.
RETB
;-------------------------------------------------------------------------------
;-------------------------------------------------------------------------------
; Starts the scheduler by restoring the context of the task that will execute
; first.
;-------------------------------------------------------------------------------
SECTION `.text`:CODE:ROOT(1)
_vPortStartFirstTask:
portRESTORE_CONTEXT ; Restore the context of whichever task the ...
RETI ; An interrupt stack frame is used so the
; task is started using a RETI instruction.
;-------------------------------------------------------------------------------
;-------------------------------------------------------------------------------
; FreeRTOS Timer Tick handler.
; This is installed as the interval timer interrupt handler.
;-------------------------------------------------------------------------------
SECTION `.text`:CODE:ROOT(1)
_vPortTickISR:
portSAVE_CONTEXT ; Save the context of the current task.
RCALL (_xTaskIncrementTick) ; Call the timer tick function.
CMPW AX, #0x00
SKZ
RCALL (_vTaskSwitchContext) ; Call the scheduler to select the next task.
portRESTORE_CONTEXT ; Restore the context of the next task to run.
RETI
;-------------------------------------------------------------------------------
END
FreeRTOS/portable/IAR/RL78/portmacro.h
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/*
* FreeRTOS Kernel V11.3.0
* 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__
/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */
/*-----------------------------------------------------------
* 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 ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS )
typedef unsigned int TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffff
#elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS )
typedef uint32_t TickType_t;
#define portMAX_DELAY ( TickType_t ) ( 0xFFFFFFFFUL )
#else
#error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width.
#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 that 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" )
#ifndef configREQUIRE_ASM_ISR_WRAPPER
#define configREQUIRE_ASM_ISR_WRAPPER 1
#endif
#if( configREQUIRE_ASM_ISR_WRAPPER == 1 )
/* You must implement an assembly ISR wrapper (see the below for details) if you need an ISR to cause a context switch.
* https://www.freertos.org/Documentation/02-Kernel/03-Supported-devices/04-Demos/Renesas/RTOS_RL78_IAR_Demos#writing-interrupt-service-routines */
#define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) do { if( xHigherPriorityTaskWoken != pdFALSE ) vTaskSwitchContext(); } while( 0 )
#else
/* You must not implement an assembly ISR wrapper even if you need an ISR to cause a context switch.
* The portYIELD, which is similar to role of an assembly ISR wrapper, runs only when a context switch is required. */
#define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) do { if( xHigherPriorityTaskWoken != pdFALSE ) portYIELD(); } while( 0 )
#endif
/*-----------------------------------------------------------*/
/* Hardware 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 )
/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#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 */