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All related to RL78 GCC demos (which are still a work in progress):

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- Abstract out the IO port handling for the LED output so the same code can be used on multiple eval boards.
- Add in the RESTORE_CONTEXT macros.
- Swap to use heap_1.c instead of heap_4.c.
- Add data model macros to FreeRTOSConfig.h (may be removed if only one data model is supported by the compiler).
- Install interrupt handlers.
This commit is contained in:
Richard Barry 2013-03-04 13:23:48 +00:00
parent 37d302b8ee
commit fba04057ec
16 changed files with 1852 additions and 842 deletions
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35
FreeRTOS/Demo/RL78_E2Studio_GCC/src/FreeRTOS_Source/portable/GCC/RL78/portasm.S
View file

@ -72,6 +72,7 @@
mission critical applications that require provable dependability.
*/
#include "FreeRTOSConfig.h"
#include "ISR_Support.h"
#define CS 0xFFFFC
@ -93,40 +94,34 @@ _vPortYield:
portSAVE_CONTEXT
/* Call the scheduler to select the next task. */
call !!_vTaskSwitchContext
/*portRESTORE_CONTEXT ; Restore the context of the next task to run.*/
/* Restore the context of the next task to run. */
portRESTORE_CONTEXT
retb
/* Starts the scheduler by restoring the context of the task that will execute
first. */
_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. */
/* Restore the context of whichever task will execute first. */
portRESTORE_CONTEXT
/* An interrupt stack frame is used so the task is started using RETI. */
reti
/* FreeRTOS tick handler. This is installed as the interval timer interrupt
handler. */
_vPortTickISR:
/* portSAVE_CONTEXT ; Save the context of the current task. */
call !!_vTaskIncrementTick /* Call the timer tick function. */
/* Save the context of the currently executing task. */
portSAVE_CONTEXT
/* Call the RTOS tick function. */
call !!_vTaskIncrementTick
#if configUSE_PREEMPTION == 1
call !!_vTaskSwitchContext /* Call the scheduler to select the next task. */
/* Select the next task to run. */
call !!_vTaskSwitchContext
#endif
/* portRESTORE_CONTEXT ; Restore the context of the next task to run. */
/* Retore the context of whichever task will run next. */
portRESTORE_CONTEXT
reti
/* Install the interrupt handlers
COMMON INTVEC:CODE:ROOT(1)
ORG 56
DW vPortTickISR
COMMON INTVEC:CODE:ROOT(1)
ORG 126
DW vPortYield */
.end

177
FreeRTOS/Demo/RL78_E2Studio_GCC/src/FreeRTOS_Source/portable/MemMang/heap_1.c Normal file
View file

@ -0,0 +1,177 @@
/*
FreeRTOS V7.4.0 - Copyright (C) 2013 Real Time Engineers Ltd.
FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
***************************************************************************
* *
* FreeRTOS tutorial books are available in pdf and paperback. *
* Complete, revised, and edited pdf reference manuals are also *
* available. *
* *
* Purchasing FreeRTOS documentation will not only help you, by *
* ensuring you get running as quickly as possible and with an *
* in-depth knowledge of how to use FreeRTOS, it will also help *
* the FreeRTOS project to continue with its mission of providing *
* professional grade, cross platform, de facto standard solutions *
* for microcontrollers - completely free of charge! *
* *
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
* *
* Thank you for using FreeRTOS, and thank you for your support! *
* *
***************************************************************************
This file is part of the FreeRTOS distribution.
FreeRTOS is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License (version 2) as published by the
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
>>>>>>NOTE<<<<<< The modification to the GPL is included to allow you to
distribute a combined work that includes FreeRTOS without being obliged to
provide the source code for proprietary components outside of the FreeRTOS
kernel.
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details. You should have received a copy of the GNU General Public License
and the FreeRTOS license exception along with FreeRTOS; if not itcan be
viewed here: http://www.freertos.org/a00114.html and also obtained by
writing to Real Time Engineers Ltd., contact details for whom are available
on the FreeRTOS WEB site.
1 tab == 4 spaces!
***************************************************************************
* *
* Having a problem? Start by reading the FAQ "My application does *
* not run, what could be wrong?" *
* *
* http://www.FreeRTOS.org/FAQHelp.html *
* *
***************************************************************************
http://www.FreeRTOS.org - Documentation, books, training, latest versions,
license and Real Time Engineers Ltd. contact details.
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
including FreeRTOS+Trace - an indispensable productivity tool, and our new
fully thread aware and reentrant UDP/IP stack.
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
Integrity Systems, who sell the code with commercial support,
indemnification and middleware, under the OpenRTOS brand.
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
engineered and independently SIL3 certified version for use in safety and
mission critical applications that require provable dependability.
*/
/*
* The simplest possible implementation of pvPortMalloc(). Note that this
* implementation does NOT allow allocated memory to be freed again.
*
* See heap_2.c, heap_3.c and heap_4.c for alternative implementations, and the
* memory management pages of http://www.FreeRTOS.org for more information.
*/
#include <stdlib.h>
/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining
all the API functions to use the MPU wrappers. That should only be done when
task.h is included from an application file. */
#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
#include "FreeRTOS.h"
#include "task.h"
#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
/* A few bytes might be lost to byte aligning the heap start address. */
#define configADJUSTED_HEAP_SIZE ( configTOTAL_HEAP_SIZE - portBYTE_ALIGNMENT )
/* Allocate the memory for the heap. */
static unsigned char ucHeap[ configTOTAL_HEAP_SIZE ];
static size_t xNextFreeByte = ( size_t ) 0;
/*-----------------------------------------------------------*/
void *pvPortMalloc( size_t xWantedSize )
{
void *pvReturn = NULL;
static unsigned char *pucAlignedHeap = NULL;
/* Ensure that blocks are always aligned to the required number of bytes. */
#if portBYTE_ALIGNMENT != 1
if( xWantedSize & portBYTE_ALIGNMENT_MASK )
{
/* Byte alignment required. */
xWantedSize += ( portBYTE_ALIGNMENT - ( xWantedSize & portBYTE_ALIGNMENT_MASK ) );
}
#endif
vTaskSuspendAll();
{
if( pucAlignedHeap == NULL )
{
/* Ensure the heap starts on a correctly aligned boundary. */
pucAlignedHeap = ( unsigned char * ) ( ( ( portPOINTER_SIZE_TYPE ) &ucHeap[ portBYTE_ALIGNMENT ] ) & ( ( portPOINTER_SIZE_TYPE ) ~portBYTE_ALIGNMENT_MASK ) );
}
/* Check there is enough room left for the allocation. */
if( ( ( xNextFreeByte + xWantedSize ) < configADJUSTED_HEAP_SIZE ) &&
( ( xNextFreeByte + xWantedSize ) > xNextFreeByte ) )/* Check for overflow. */
{
/* Return the next free byte then increment the index past this
block. */
pvReturn = pucAlignedHeap + xNextFreeByte;
xNextFreeByte += xWantedSize;
}
}
xTaskResumeAll();
#if( configUSE_MALLOC_FAILED_HOOK == 1 )
{
if( pvReturn == NULL )
{
extern void vApplicationMallocFailedHook( void );
vApplicationMallocFailedHook();
}
}
#endif
return pvReturn;
}
/*-----------------------------------------------------------*/
void vPortFree( void *pv )
{
/* Memory cannot be freed using this scheme. See heap_2.c, heap_3.c and
heap_4.c for alternative implementations, and the memory management pages of
http://www.FreeRTOS.org for more information. */
( void ) pv;
/* Force an assert as it is invalid to call this function. */
configASSERT( pv == NULL );
}
/*-----------------------------------------------------------*/
void vPortInitialiseBlocks( void )
{
/* Only required when static memory is not cleared. */
xNextFreeByte = ( size_t ) 0;
}
/*-----------------------------------------------------------*/
size_t xPortGetFreeHeapSize( void )
{
return ( configADJUSTED_HEAP_SIZE - xNextFreeByte );
}

359
FreeRTOS/Demo/RL78_E2Studio_GCC/src/FreeRTOS_Source/portable/MemMang/heap_4.c
View file

@ -1,359 +0,0 @@
/*
FreeRTOS V7.4.0 - Copyright (C) 2013 Real Time Engineers Ltd.
FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
***************************************************************************
* *
* FreeRTOS tutorial books are available in pdf and paperback. *
* Complete, revised, and edited pdf reference manuals are also *
* available. *
* *
* Purchasing FreeRTOS documentation will not only help you, by *
* ensuring you get running as quickly as possible and with an *
* in-depth knowledge of how to use FreeRTOS, it will also help *
* the FreeRTOS project to continue with its mission of providing *
* professional grade, cross platform, de facto standard solutions *
* for microcontrollers - completely free of charge! *
* *
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
* *
* Thank you for using FreeRTOS, and thank you for your support! *
* *
***************************************************************************
This file is part of the FreeRTOS distribution.
FreeRTOS is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License (version 2) as published by the
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
>>>>>>NOTE<<<<<< The modification to the GPL is included to allow you to
distribute a combined work that includes FreeRTOS without being obliged to
provide the source code for proprietary components outside of the FreeRTOS
kernel.
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details. You should have received a copy of the GNU General Public License
and the FreeRTOS license exception along with FreeRTOS; if not itcan be
viewed here: http://www.freertos.org/a00114.html and also obtained by
writing to Real Time Engineers Ltd., contact details for whom are available
on the FreeRTOS WEB site.
1 tab == 4 spaces!
***************************************************************************
* *
* Having a problem? Start by reading the FAQ "My application does *
* not run, what could be wrong?" *
* *
* http://www.FreeRTOS.org/FAQHelp.html *
* *
***************************************************************************
http://www.FreeRTOS.org - Documentation, books, training, latest versions,
license and Real Time Engineers Ltd. contact details.
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
including FreeRTOS+Trace - an indispensable productivity tool, and our new
fully thread aware and reentrant UDP/IP stack.
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
Integrity Systems, who sell the code with commercial support,
indemnification and middleware, under the OpenRTOS brand.
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
engineered and independently SIL3 certified version for use in safety and
mission critical applications that require provable dependability.
*/
/*
* A sample implementation of pvPortMalloc() and vPortFree() that combines
* (coalescences) adjacent memory blocks as they are freed, and in so doing
* limits memory fragmentation.
*
* See heap_1.c, heap_2.c and heap_3.c for alternative implementations, and the
* memory management pages of http://www.FreeRTOS.org for more information.
*/
#include <stdlib.h>
/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining
all the API functions to use the MPU wrappers. That should only be done when
task.h is included from an application file. */
#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
#include "FreeRTOS.h"
#include "task.h"
#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
/* Block sizes must not get too small. */
#define heapMINIMUM_BLOCK_SIZE ( ( size_t ) ( heapSTRUCT_SIZE * 2 ) )
/* A few bytes might be lost to byte aligning the heap start address. */
#define configADJUSTED_HEAP_SIZE ( configTOTAL_HEAP_SIZE - portBYTE_ALIGNMENT )
/* Allocate the memory for the heap. */
static unsigned char ucHeap[ configTOTAL_HEAP_SIZE ];
/* Define the linked list structure. This is used to link free blocks in order
of their memory address. */
typedef struct A_BLOCK_LINK
{
struct A_BLOCK_LINK *pxNextFreeBlock; /*<< The next free block in the list. */
size_t xBlockSize; /*<< The size of the free block. */
} xBlockLink;
/*-----------------------------------------------------------*/
/*
* Inserts a block of memory that is being freed into the correct position in
* the list of free memory blocks. The block being freed will be merged with
* the block in front it and/or the block behind it if the memory blocks are
* adjacent to each other.
*/
static void prvInsertBlockIntoFreeList( xBlockLink *pxBlockToInsert );
/*
* Called automatically to setup the required heap structures the first time
* pvPortMalloc() is called.
*/
static void prvHeapInit( void );
/*-----------------------------------------------------------*/
/* The size of the structure placed at the beginning of each allocated memory
block must by correctly byte aligned. */
static const unsigned short heapSTRUCT_SIZE = ( sizeof( xBlockLink ) + portBYTE_ALIGNMENT - ( sizeof( xBlockLink ) % portBYTE_ALIGNMENT ) );
/* Ensure the pxEnd pointer will end up on the correct byte alignment. */
static const size_t xTotalHeapSize = ( ( size_t ) configADJUSTED_HEAP_SIZE ) & ( ( size_t ) ~portBYTE_ALIGNMENT_MASK );
/* Create a couple of list links to mark the start and end of the list. */
static xBlockLink xStart, *pxEnd = NULL;
/* Keeps track of the number of free bytes remaining, but says nothing about
fragmentation. */
static size_t xFreeBytesRemaining = ( ( size_t ) configADJUSTED_HEAP_SIZE ) & ( ( size_t ) ~portBYTE_ALIGNMENT_MASK );
/* STATIC FUNCTIONS ARE DEFINED AS MACROS TO MINIMIZE THE FUNCTION CALL DEPTH. */
/*-----------------------------------------------------------*/
void *pvPortMalloc( size_t xWantedSize )
{
xBlockLink *pxBlock, *pxPreviousBlock, *pxNewBlockLink;
void *pvReturn = NULL;
vTaskSuspendAll();
{
/* If this is the first call to malloc then the heap will require
initialisation to setup the list of free blocks. */
if( pxEnd == NULL )
{
prvHeapInit();
}
/* The wanted size is increased so it can contain a xBlockLink
structure in addition to the requested amount of bytes. */
if( xWantedSize > 0 )
{
xWantedSize += heapSTRUCT_SIZE;
/* Ensure that blocks are always aligned to the required number of
bytes. */
if( xWantedSize & portBYTE_ALIGNMENT_MASK )
{
/* Byte alignment required. */
xWantedSize += ( portBYTE_ALIGNMENT - ( xWantedSize & portBYTE_ALIGNMENT_MASK ) );
}
}
if( ( xWantedSize > 0 ) && ( xWantedSize < xTotalHeapSize ) )
{
/* Traverse the list from the start (lowest address) block until one
of adequate size is found. */
pxPreviousBlock = &xStart;
pxBlock = xStart.pxNextFreeBlock;
while( ( pxBlock->xBlockSize < xWantedSize ) && ( pxBlock->pxNextFreeBlock != NULL ) )
{
pxPreviousBlock = pxBlock;
pxBlock = pxBlock->pxNextFreeBlock;
}
/* If the end marker was reached then a block of adequate size was
not found. */
if( pxBlock != pxEnd )
{
/* Return the memory space - jumping over the xBlockLink structure
at its start. */
pvReturn = ( void * ) ( ( ( unsigned char * ) pxPreviousBlock->pxNextFreeBlock ) + heapSTRUCT_SIZE );
/* This block is being returned for use so must be taken out of
the list of free blocks. */
pxPreviousBlock->pxNextFreeBlock = pxBlock->pxNextFreeBlock;
/* If the block is larger than required it can be split into two. */
if( ( pxBlock->xBlockSize - xWantedSize ) > heapMINIMUM_BLOCK_SIZE )
{
/* This block is to be split into two. Create a new block
following the number of bytes requested. The void cast is
used to prevent byte alignment warnings from the compiler. */
pxNewBlockLink = ( void * ) ( ( ( unsigned char * ) pxBlock ) + xWantedSize );
/* Calculate the sizes of two blocks split from the single
block. */
pxNewBlockLink->xBlockSize = pxBlock->xBlockSize - xWantedSize;
pxBlock->xBlockSize = xWantedSize;
/* Insert the new block into the list of free blocks. */
prvInsertBlockIntoFreeList( ( pxNewBlockLink ) );
}
xFreeBytesRemaining -= pxBlock->xBlockSize;
}
}
}
xTaskResumeAll();
#if( configUSE_MALLOC_FAILED_HOOK == 1 )
{
if( pvReturn == NULL )
{
extern void vApplicationMallocFailedHook( void );
vApplicationMallocFailedHook();
}
}
#endif
return pvReturn;
}
/*-----------------------------------------------------------*/
void vPortFree( void *pv )
{
unsigned char *puc = ( unsigned char * ) pv;
xBlockLink *pxLink;
if( pv != NULL )
{
/* The memory being freed will have an xBlockLink structure immediately
before it. */
puc -= heapSTRUCT_SIZE;
/* This casting is to keep the compiler from issuing warnings. */
pxLink = ( void * ) puc;
vTaskSuspendAll();
{
/* Add this block to the list of free blocks. */
xFreeBytesRemaining += pxLink->xBlockSize;
prvInsertBlockIntoFreeList( ( ( xBlockLink * ) pxLink ) );
}
xTaskResumeAll();
}
}
/*-----------------------------------------------------------*/
size_t xPortGetFreeHeapSize( void )
{
return xFreeBytesRemaining;
}
/*-----------------------------------------------------------*/
void vPortInitialiseBlocks( void )
{
/* This just exists to keep the linker quiet. */
}
/*-----------------------------------------------------------*/
static void prvHeapInit( void )
{
xBlockLink *pxFirstFreeBlock;
unsigned char *pucHeapEnd, *pucAlignedHeap;
/* Ensure the heap starts on a correctly aligned boundary. */
pucAlignedHeap = ( unsigned char * ) ( ( ( portPOINTER_SIZE_TYPE ) &ucHeap[ portBYTE_ALIGNMENT ] ) & ( ( portPOINTER_SIZE_TYPE ) ~portBYTE_ALIGNMENT_MASK ) );
/* xStart is used to hold a pointer to the first item in the list of free
blocks. The void cast is used to prevent compiler warnings. */
xStart.pxNextFreeBlock = ( void * ) pucAlignedHeap;
xStart.xBlockSize = ( size_t ) 0;
/* pxEnd is used to mark the end of the list of free blocks and is inserted
at the end of the heap space. */
pucHeapEnd = pucAlignedHeap + xTotalHeapSize;
pucHeapEnd -= heapSTRUCT_SIZE;
pxEnd = ( void * ) pucHeapEnd;
configASSERT( ( ( ( unsigned long ) pxEnd ) & ( ( unsigned long ) portBYTE_ALIGNMENT_MASK ) ) == 0UL );
pxEnd->xBlockSize = 0;
pxEnd->pxNextFreeBlock = NULL;
/* To start with there is a single free block that is sized to take up the
entire heap space, minus the space taken by pxEnd. */
pxFirstFreeBlock = ( void * ) pucAlignedHeap;
pxFirstFreeBlock->xBlockSize = xTotalHeapSize - heapSTRUCT_SIZE;
pxFirstFreeBlock->pxNextFreeBlock = pxEnd;
/* The heap now contains pxEnd. */
xFreeBytesRemaining -= heapSTRUCT_SIZE;
}
/*-----------------------------------------------------------*/
static void prvInsertBlockIntoFreeList( xBlockLink *pxBlockToInsert )
{
xBlockLink *pxIterator;
unsigned char *puc;
/* Iterate through the list until a block is found that has a higher address
than the block being inserted. */
for( pxIterator = &xStart; pxIterator->pxNextFreeBlock < pxBlockToInsert; pxIterator = pxIterator->pxNextFreeBlock )
{
/* Nothing to do here, just iterate to the right position. */
}
/* Do the block being inserted, and the block it is being inserted after
make a contiguous block of memory? */
puc = ( unsigned char * ) pxIterator;
if( ( puc + pxIterator->xBlockSize ) == ( unsigned char * ) pxBlockToInsert )
{
pxIterator->xBlockSize += pxBlockToInsert->xBlockSize;
pxBlockToInsert = pxIterator;
}
/* Do the block being inserted, and the block it is being inserted before
make a contiguous block of memory? */
puc = ( unsigned char * ) pxBlockToInsert;
if( ( puc + pxBlockToInsert->xBlockSize ) == ( unsigned char * ) pxIterator->pxNextFreeBlock )
{
if( pxIterator->pxNextFreeBlock != pxEnd )
{
/* Form one big block from the two blocks. */
pxBlockToInsert->xBlockSize += pxIterator->pxNextFreeBlock->xBlockSize;
pxBlockToInsert->pxNextFreeBlock = pxIterator->pxNextFreeBlock->pxNextFreeBlock;
}
else
{
pxBlockToInsert->pxNextFreeBlock = pxEnd;
}
}
else
{
pxBlockToInsert->pxNextFreeBlock = pxIterator->pxNextFreeBlock;
}
/* If the block being inserted plugged a gab, so was merged with the block
before and the block after, then it's pxNextFreeBlock pointer will have
already been set, and should not be set here as that would make it point
to itself. */
if( pxIterator != pxBlockToInsert )
{
pxIterator->pxNextFreeBlock = pxBlockToInsert;
}
}