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Paul Bartell 2022-11-29 10:36:04 -08:00 • committed by Paul Bartell
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420
portable/IAR/RL78/port.c
View file

@ -1,210 +1,210 @@
/*
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
* 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 code and large data sizeof( StackType_t ) == 2, and
sizeof( StackType_t * ) == 4. With small code and 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;
*pulLocal = ( uint32_t ) pvParameters;
pxTopOfStack--;
/* 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--;
/* An initial value for the AX register. */
*pxTopOfStack = ( StackType_t ) 0x1111;
pxTopOfStack--;
}
#else
{
/* 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--;
}
#endif
/* 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--;
/* 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 Kernel <DEVELOPMENT BRANCH>
* 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 code and large data sizeof( StackType_t ) == 2, and
sizeof( StackType_t * ) == 4. With small code and 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;
*pulLocal = ( uint32_t ) pvParameters;
pxTopOfStack--;
/* 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--;
/* An initial value for the AX register. */
*pxTopOfStack = ( StackType_t ) 0x1111;
pxTopOfStack--;
}
#else
{
/* 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--;
}
#endif
/* 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--;
/* 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. */
}
/*-----------------------------------------------------------*/

456
portable/IAR/RL78/portmacro.h
View file

@ -1,228 +1,228 @@
/*
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
* 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 */
/*
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
* 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 */