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Merge remote-tracking branch 'upstream/master' into vTaskStepTick-improvement

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Jeff Tenney 2020-08-21 10:37:28 -07:00
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27
History.txt
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@ -1,8 +1,8 @@
Documentation and download available at http://www.FreeRTOS.org/ Documentation and download available at https://www.FreeRTOS.org/
Changes between FreeRTOS V10.3.0 and FreeRTOS V10.3.1 released February 18 2020 Changes between FreeRTOS V10.3.0 and FreeRTOS V10.3.1 released February 18 2020
See http://www.FreeRTOS.org/FreeRTOS-V10.3.x.html See https://www.FreeRTOS.org/FreeRTOS-V10.3.x.html
+ ./FreeRTOS-Labs directory was removed from this file. The libraries it + ./FreeRTOS-Labs directory was removed from this file. The libraries it
contained are now available as a separate download. contained are now available as a separate download.
@ -11,7 +11,7 @@ Changes between FreeRTOS V10.3.0 and FreeRTOS V10.3.1 released February 18 2020
Changes between FreeRTOS V10.2.1 and FreeRTOS V10.3.0 released February 7 2020 Changes between FreeRTOS V10.2.1 and FreeRTOS V10.3.0 released February 7 2020
See http://www.FreeRTOS.org/FreeRTOS-V10.3.x.html See https://www.FreeRTOS.org/FreeRTOS-V10.3.x.html
New and updated kernel ports: New and updated kernel ports:
@ -205,8 +205,8 @@ Changes between FreeRTOS V9.0.1 and FreeRTOS V10.0.0:
New Features and components: New Features and components:
+ Stream Buffers - see http://www.FreeRTOS.org/RTOS-stream-buffer-example.html + Stream Buffers - see https://www.FreeRTOS.org/RTOS-stream-buffer-example.html
+ Message Buffers - see http://www.FreeRTOS.org//RTOS-message-buffer-example.html + Message Buffers - see https://www.FreeRTOS.org//RTOS-message-buffer-example.html
+ Move FreeRTOS+TCP into the main repository, along with the basic Win32 + Move FreeRTOS+TCP into the main repository, along with the basic Win32
TCP demo FreeRTOS_Plus_TCP_Minimal_Windows_Simulator. TCP demo FreeRTOS_Plus_TCP_Minimal_Windows_Simulator.
@ -308,7 +308,7 @@ Changes since FreeRTOS V9.0.0:
Changes between FreeRTOS V9.0.0 and FreeRTOS V9.0.0rc2 released May 25 2016: Changes between FreeRTOS V9.0.0 and FreeRTOS V9.0.0rc2 released May 25 2016:
See http://www.FreeRTOS.org/FreeRTOS-V9.html See https://www.FreeRTOS.org/FreeRTOS-V9.html
RTOS kernel updates: RTOS kernel updates:
@ -366,7 +366,7 @@ Changes between FreeRTOS V9.0.0 and FreeRTOS V9.0.0rc2 released May 25 2016:
Changes between FreeRTOS V9.0.0rc1 and FreeRTOS V9.0.0rc2 (release candidate 2) Changes between FreeRTOS V9.0.0rc1 and FreeRTOS V9.0.0rc2 (release candidate 2)
released March 30 2016: released March 30 2016:
NOTE - See http://www.FreeRTOS.org/FreeRTOS-V9.html for details NOTE - See https://www.FreeRTOS.org/FreeRTOS-V9.html for details
+ The functions that create RTOS objects using static memory allocation have + The functions that create RTOS objects using static memory allocation have
been simplified and will not revert to using dynamic allocation if a been simplified and will not revert to using dynamic allocation if a
@ -579,7 +579,7 @@ Changes between V8.1.2 and V8.2.0 released 16th January 2015
Significant RTOS kernel updates: Significant RTOS kernel updates:
+ MAJOR NEW FEATURE! Task notifications. Please see the following URL for + MAJOR NEW FEATURE! Task notifications. Please see the following URL for
details: http://www.FreeRTOS.org/RTOS-task-notifications.html details: https://www.FreeRTOS.org/RTOS-task-notifications.html
+ NEW HEADER FILE REQUIRED! Obsolete definitions have been separated into + NEW HEADER FILE REQUIRED! Obsolete definitions have been separated into
a new header file called FreeRTOS/Source/include/deprecated_definitions.h. a new header file called FreeRTOS/Source/include/deprecated_definitions.h.
This header file must be present to build. Note some of the obsolete This header file must be present to build. Note some of the obsolete
@ -969,7 +969,7 @@ Changes between V7.4.1 and V7.4.2 released May 1 2013
+ Added FreeRTOS+FAT SL source code and demo project. The demo project + Added FreeRTOS+FAT SL source code and demo project. The demo project
runs in the FreeRTOS Windows simulator for easy and hardware independent runs in the FreeRTOS Windows simulator for easy and hardware independent
experimentation and evaluation. See http://www.FreeRTOS.org/fat_sl experimentation and evaluation. See https://www.FreeRTOS.org/fat_sl
Changes between V7.4.0 and V7.4.1 released April 18 2013 Changes between V7.4.0 and V7.4.1 released April 18 2013
@ -998,7 +998,7 @@ Changes between V7.4.0 and V7.4.1 released April 18 2013
Changes between V7.3.0 and V7.4.0 released February 20 2013 Changes between V7.3.0 and V7.4.0 released February 20 2013
+ New feature: Queue sets. See: + New feature: Queue sets. See:
http://www.FreeRTOS.org/Pend-on-multiple-rtos-objects.html https://www.FreeRTOS.org/Pend-on-multiple-rtos-objects.html
+ Overhauled the default tickless idle mode implementation provided with the + Overhauled the default tickless idle mode implementation provided with the
ARM Cortex-M3 port layers. ARM Cortex-M3 port layers.
+ Enhanced tickless support in the core kernel code with the introduction of + Enhanced tickless support in the core kernel code with the introduction of
@ -1145,7 +1145,7 @@ Changes between V7.1.0 and V7.1.1 released May 1 2012
+ Introduced the portSETUP_TCB() macro to remove the requirement for the + Introduced the portSETUP_TCB() macro to remove the requirement for the
Windows simulator to use the traceTASK_CREATE() macro, leaving the trace Windows simulator to use the traceTASK_CREATE() macro, leaving the trace
macro available for use by FreeRTOS+Trace (http://www.FreeRTOS.org/trace). macro available for use by FreeRTOS+Trace (https://www.FreeRTOS.org/trace).
+ Added a new trace macro, traceMOVE_TASK_TO_READY_STATE(), to allow future + Added a new trace macro, traceMOVE_TASK_TO_READY_STATE(), to allow future
FreeRTOS+Trace versions to provide even more information to users. FreeRTOS+Trace versions to provide even more information to users.
+ Updated the FreeRTOS MPU port to be correct for changes that were + Updated the FreeRTOS MPU port to be correct for changes that were
@ -1173,7 +1173,7 @@ Changes between V7.1.0 and V7.1.1 released May 1 2012
+ The command interpreter has now been formally released as FreeRTOS+CLI, + The command interpreter has now been formally released as FreeRTOS+CLI,
and been moved out of the main FreeRTOS download, to instead be available and been moved out of the main FreeRTOS download, to instead be available
from the FreeRTOS+ Ecosystem site http://www.FreeRTOS.org/plus. from the FreeRTOS+ Ecosystem site https://www.FreeRTOS.org/plus.
+ flash_timer.c/h has been added to the list of standard demo tasks. This + flash_timer.c/h has been added to the list of standard demo tasks. This
performs the same functionality as the flash.c tasks, but using software performs the same functionality as the flash.c tasks, but using software
timers in place of tasks. timers in place of tasks.
@ -1748,9 +1748,6 @@ Changes between V4.8.0 and V5.0.0 released April 15, 2008
compiler might not issue any type mismatch warnings! compiler might not issue any type mismatch warnings!
See http://www.FreeRTOS.org/upgrading.html for full information.
Other changes: Other changes:
+ Support added for the new Luminary Micro LM3S3768 and LM3S3748 Cortex-M3 + Support added for the new Luminary Micro LM3S3768 and LM3S3748 Cortex-M3

4
README.md
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@ -29,3 +29,7 @@ is normally only used on very memory limited systems.
See the readme file in the ```./portable``` directory for more information. See the readme file in the ```./portable``` directory for more information.
- The ```./include``` directory contains the real time kernel header files. - The ```./include``` directory contains the real time kernel header files.
### Code Formatting
FreeRTOS files are formatted using the "uncrustify" tool. The configuration file used by uncrustify can be found in the [FreeRTOS/FreeRTOS repository](https://github.com/FreeRTOS/FreeRTOS/blob/master/tools/uncrustify.cfg).

9
croutine.c
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@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
#include "FreeRTOS.h" #include "FreeRTOS.h"
@ -202,7 +201,7 @@
{ {
/* Are there any co-routines waiting to get moved to the ready list? These /* Are there any co-routines waiting to get moved to the ready list? These
* are co-routines that have been readied by an ISR. The ISR cannot access * are co-routines that have been readied by an ISR. The ISR cannot access
* the ready lists itself. */ * the ready lists itself. */
while( listLIST_IS_EMPTY( &xPendingReadyCoRoutineList ) == pdFALSE ) while( listLIST_IS_EMPTY( &xPendingReadyCoRoutineList ) == pdFALSE )
{ {
CRCB_t * pxUnblockedCRCB; CRCB_t * pxUnblockedCRCB;
@ -306,7 +305,7 @@
} }
/* listGET_OWNER_OF_NEXT_ENTRY walks through the list, so the co-routines /* listGET_OWNER_OF_NEXT_ENTRY walks through the list, so the co-routines
* of the same priority get an equal share of the processor time. */ * of the same priority get an equal share of the processor time. */
listGET_OWNER_OF_NEXT_ENTRY( pxCurrentCoRoutine, &( pxReadyCoRoutineLists[ uxTopCoRoutineReadyPriority ] ) ); listGET_OWNER_OF_NEXT_ENTRY( pxCurrentCoRoutine, &( pxReadyCoRoutineLists[ uxTopCoRoutineReadyPriority ] ) );
/* Call the co-routine. */ /* Call the co-routine. */

5
event_groups.c
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@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
/* Standard includes. */ /* Standard includes. */

1625
include/FreeRTOS.h
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File diff suppressed because it is too large Load diff

106
include/StackMacros.h
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@ -19,114 +19,14 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
#ifndef STACK_MACROS_H
#define STACK_MACROS_H
#ifndef _MSC_VER /* Visual Studio doesn't support #warning. */ #ifndef _MSC_VER /* Visual Studio doesn't support #warning. */
#warning The name of this file has changed to stack_macros.h. Please update your code accordingly. This source file (which has the original name) will be removed in future released. #warning The name of this file has changed to stack_macros.h. Please update your code accordingly. This source file (which has the original name) will be removed in future released.
#endif #endif
/* #include "stack_macros.h"
* Call the stack overflow hook function if the stack of the task being swapped
* out is currently overflowed, or looks like it might have overflowed in the
* past.
*
* Setting configCHECK_FOR_STACK_OVERFLOW to 1 will cause the macro to check
* the current stack state only - comparing the current top of stack value to
* the stack limit. Setting configCHECK_FOR_STACK_OVERFLOW to greater than 1
* will also cause the last few stack bytes to be checked to ensure the value
* to which the bytes were set when the task was created have not been
* overwritten. Note this second test does not guarantee that an overflowed
* stack will always be recognised.
*/
/*-----------------------------------------------------------*/
#if ( ( configCHECK_FOR_STACK_OVERFLOW == 1 ) && ( portSTACK_GROWTH < 0 ) )
/* Only the current stack state is to be checked. */
#define taskCHECK_FOR_STACK_OVERFLOW() \
{ \
/* Is the currently saved stack pointer within the stack limit? */ \
if( pxCurrentTCB->pxTopOfStack <= pxCurrentTCB->pxStack ) \
{ \
vApplicationStackOverflowHook( ( TaskHandle_t ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
} \
}
#endif /* configCHECK_FOR_STACK_OVERFLOW == 1 */
/*-----------------------------------------------------------*/
#if ( ( configCHECK_FOR_STACK_OVERFLOW == 1 ) && ( portSTACK_GROWTH > 0 ) )
/* Only the current stack state is to be checked. */
#define taskCHECK_FOR_STACK_OVERFLOW() \
{ \
\
/* Is the currently saved stack pointer within the stack limit? */ \
if( pxCurrentTCB->pxTopOfStack >= pxCurrentTCB->pxEndOfStack ) \
{ \
vApplicationStackOverflowHook( ( TaskHandle_t ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
} \
}
#endif /* configCHECK_FOR_STACK_OVERFLOW == 1 */
/*-----------------------------------------------------------*/
#if ( ( configCHECK_FOR_STACK_OVERFLOW > 1 ) && ( portSTACK_GROWTH < 0 ) )
#define taskCHECK_FOR_STACK_OVERFLOW() \
{ \
const uint32_t * const pulStack = ( uint32_t * ) pxCurrentTCB->pxStack; \
const uint32_t ulCheckValue = ( uint32_t ) 0xa5a5a5a5; \
\
if( ( pulStack[ 0 ] != ulCheckValue ) || \
( pulStack[ 1 ] != ulCheckValue ) || \
( pulStack[ 2 ] != ulCheckValue ) || \
( pulStack[ 3 ] != ulCheckValue ) ) \
{ \
vApplicationStackOverflowHook( ( TaskHandle_t ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
} \
}
#endif /* #if( configCHECK_FOR_STACK_OVERFLOW > 1 ) */
/*-----------------------------------------------------------*/
#if ( ( configCHECK_FOR_STACK_OVERFLOW > 1 ) && ( portSTACK_GROWTH > 0 ) )
#define taskCHECK_FOR_STACK_OVERFLOW() \
{ \
int8_t * pcEndOfStack = ( int8_t * ) pxCurrentTCB->pxEndOfStack; \
static const uint8_t ucExpectedStackBytes[] = { tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE }; \
\
\
pcEndOfStack -= sizeof( ucExpectedStackBytes ); \
\
/* Has the extremity of the task stack ever been written over? */ \
if( memcmp( ( void * ) pcEndOfStack, ( void * ) ucExpectedStackBytes, sizeof( ucExpectedStackBytes ) ) != 0 ) \
{ \
vApplicationStackOverflowHook( ( TaskHandle_t ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
} \
}
#endif /* #if( configCHECK_FOR_STACK_OVERFLOW > 1 ) */
/*-----------------------------------------------------------*/
/* Remove stack overflow macro if not being used. */
#ifndef taskCHECK_FOR_STACK_OVERFLOW
#define taskCHECK_FOR_STACK_OVERFLOW()
#endif
#endif /* STACK_MACROS_H */

331
include/atomic.h
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@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
/** /**
@ -35,18 +34,20 @@
*/ */
#ifndef ATOMIC_H #ifndef ATOMIC_H
#define ATOMIC_H #define ATOMIC_H
#ifndef INC_FREERTOS_H #ifndef INC_FREERTOS_H
#error "include FreeRTOS.h must appear in source files before include atomic.h" #error "include FreeRTOS.h must appear in source files before include atomic.h"
#endif #endif
/* Standard includes. */ /* Standard includes. */
#include <stdint.h> #include <stdint.h>
#ifdef __cplusplus /* *INDENT-OFF* */
extern "C" { #ifdef __cplusplus
#endif extern "C" {
#endif
/* *INDENT-ON* */
/* /*
* Port specific definitions -- entering/exiting critical section. * Port specific definitions -- entering/exiting critical section.
@ -56,22 +57,22 @@
* ATOMIC_ENTER_CRITICAL(). * ATOMIC_ENTER_CRITICAL().
* *
*/ */
#if defined( portSET_INTERRUPT_MASK_FROM_ISR ) #if defined( portSET_INTERRUPT_MASK_FROM_ISR )
/* Nested interrupt scheme is supported in this port. */ /* Nested interrupt scheme is supported in this port. */
#define ATOMIC_ENTER_CRITICAL() \ #define ATOMIC_ENTER_CRITICAL() \
UBaseType_t uxCriticalSectionType = portSET_INTERRUPT_MASK_FROM_ISR() UBaseType_t uxCriticalSectionType = portSET_INTERRUPT_MASK_FROM_ISR()
#define ATOMIC_EXIT_CRITICAL() \ #define ATOMIC_EXIT_CRITICAL() \
portCLEAR_INTERRUPT_MASK_FROM_ISR( uxCriticalSectionType ) portCLEAR_INTERRUPT_MASK_FROM_ISR( uxCriticalSectionType )
#else #else
/* Nested interrupt scheme is NOT supported in this port. */ /* Nested interrupt scheme is NOT supported in this port. */
#define ATOMIC_ENTER_CRITICAL() portENTER_CRITICAL() #define ATOMIC_ENTER_CRITICAL() portENTER_CRITICAL()
#define ATOMIC_EXIT_CRITICAL() portEXIT_CRITICAL() #define ATOMIC_EXIT_CRITICAL() portEXIT_CRITICAL()
#endif /* portSET_INTERRUPT_MASK_FROM_ISR() */ #endif /* portSET_INTERRUPT_MASK_FROM_ISR() */
/* /*
* Port specific definition -- "always inline". * Port specific definition -- "always inline".
@ -80,12 +81,12 @@
* for atomic. Thus, if portFORCE_INLINE is not provided by portmacro.h, * for atomic. Thus, if portFORCE_INLINE is not provided by portmacro.h,
* instead of resulting error, simply define it away. * instead of resulting error, simply define it away.
*/ */
#ifndef portFORCE_INLINE #ifndef portFORCE_INLINE
#define portFORCE_INLINE #define portFORCE_INLINE
#endif #endif
#define ATOMIC_COMPARE_AND_SWAP_SUCCESS 0x1U /**< Compare and swap succeeded, swapped. */ #define ATOMIC_COMPARE_AND_SWAP_SUCCESS 0x1U /**< Compare and swap succeeded, swapped. */
#define ATOMIC_COMPARE_AND_SWAP_FAILURE 0x0U /**< Compare and swap failed, did not swap. */ #define ATOMIC_COMPARE_AND_SWAP_FAILURE 0x0U /**< Compare and swap failed, did not swap. */
/*----------------------------- Swap && CAS ------------------------------*/ /*----------------------------- Swap && CAS ------------------------------*/
@ -104,28 +105,28 @@
* @note This function only swaps *pulDestination with ulExchange, if previous * @note This function only swaps *pulDestination with ulExchange, if previous
* *pulDestination value equals ulComparand. * *pulDestination value equals ulComparand.
*/ */
static portFORCE_INLINE uint32_t Atomic_CompareAndSwap_u32( uint32_t volatile * pulDestination, static portFORCE_INLINE uint32_t Atomic_CompareAndSwap_u32( uint32_t volatile * pulDestination,
uint32_t ulExchange, uint32_t ulExchange,
uint32_t ulComparand ) uint32_t ulComparand )
{
uint32_t ulReturnValue;
ATOMIC_ENTER_CRITICAL();
{ {
uint32_t ulReturnValue; if( *pulDestination == ulComparand )
ATOMIC_ENTER_CRITICAL();
{ {
if( *pulDestination == ulComparand ) *pulDestination = ulExchange;
{ ulReturnValue = ATOMIC_COMPARE_AND_SWAP_SUCCESS;
*pulDestination = ulExchange; }
ulReturnValue = ATOMIC_COMPARE_AND_SWAP_SUCCESS; else
} {
else ulReturnValue = ATOMIC_COMPARE_AND_SWAP_FAILURE;
{
ulReturnValue = ATOMIC_COMPARE_AND_SWAP_FAILURE;
}
} }
ATOMIC_EXIT_CRITICAL();
return ulReturnValue;
} }
ATOMIC_EXIT_CRITICAL();
return ulReturnValue;
}
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/** /**
@ -140,20 +141,20 @@
* *
* @return The initial value of *ppvDestination. * @return The initial value of *ppvDestination.
*/ */
static portFORCE_INLINE void * Atomic_SwapPointers_p32( void * volatile * ppvDestination, static portFORCE_INLINE void * Atomic_SwapPointers_p32( void * volatile * ppvDestination,
void * pvExchange ) void * pvExchange )
{
void * pReturnValue;
ATOMIC_ENTER_CRITICAL();
{ {
void * pReturnValue; pReturnValue = *ppvDestination;
*ppvDestination = pvExchange;
ATOMIC_ENTER_CRITICAL();
{
pReturnValue = *ppvDestination;
*ppvDestination = pvExchange;
}
ATOMIC_EXIT_CRITICAL();
return pReturnValue;
} }
ATOMIC_EXIT_CRITICAL();
return pReturnValue;
}
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/** /**
@ -172,24 +173,24 @@
* @note This function only swaps *ppvDestination with pvExchange, if previous * @note This function only swaps *ppvDestination with pvExchange, if previous
* *ppvDestination value equals pvComparand. * *ppvDestination value equals pvComparand.
*/ */
static portFORCE_INLINE uint32_t Atomic_CompareAndSwapPointers_p32( void * volatile * ppvDestination, static portFORCE_INLINE uint32_t Atomic_CompareAndSwapPointers_p32( void * volatile * ppvDestination,
void * pvExchange, void * pvExchange,
void * pvComparand ) void * pvComparand )
{
uint32_t ulReturnValue = ATOMIC_COMPARE_AND_SWAP_FAILURE;
ATOMIC_ENTER_CRITICAL();
{ {
uint32_t ulReturnValue = ATOMIC_COMPARE_AND_SWAP_FAILURE; if( *ppvDestination == pvComparand )
ATOMIC_ENTER_CRITICAL();
{ {
if( *ppvDestination == pvComparand ) *ppvDestination = pvExchange;
{ ulReturnValue = ATOMIC_COMPARE_AND_SWAP_SUCCESS;
*ppvDestination = pvExchange;
ulReturnValue = ATOMIC_COMPARE_AND_SWAP_SUCCESS;
}
} }
ATOMIC_EXIT_CRITICAL();
return ulReturnValue;
} }
ATOMIC_EXIT_CRITICAL();
return ulReturnValue;
}
/*----------------------------- Arithmetic ------------------------------*/ /*----------------------------- Arithmetic ------------------------------*/
@ -205,20 +206,20 @@
* *
* @return previous *pulAddend value. * @return previous *pulAddend value.
*/ */
static portFORCE_INLINE uint32_t Atomic_Add_u32( uint32_t volatile * pulAddend, static portFORCE_INLINE uint32_t Atomic_Add_u32( uint32_t volatile * pulAddend,
uint32_t ulCount ) uint32_t ulCount )
{
uint32_t ulCurrent;
ATOMIC_ENTER_CRITICAL();
{ {
uint32_t ulCurrent; ulCurrent = *pulAddend;
*pulAddend += ulCount;
ATOMIC_ENTER_CRITICAL();
{
ulCurrent = *pulAddend;
*pulAddend += ulCount;
}
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
} }
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
}
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/** /**
@ -233,20 +234,20 @@
* *
* @return previous *pulAddend value. * @return previous *pulAddend value.
*/ */
static portFORCE_INLINE uint32_t Atomic_Subtract_u32( uint32_t volatile * pulAddend, static portFORCE_INLINE uint32_t Atomic_Subtract_u32( uint32_t volatile * pulAddend,
uint32_t ulCount ) uint32_t ulCount )
{
uint32_t ulCurrent;
ATOMIC_ENTER_CRITICAL();
{ {
uint32_t ulCurrent; ulCurrent = *pulAddend;
*pulAddend -= ulCount;
ATOMIC_ENTER_CRITICAL();
{
ulCurrent = *pulAddend;
*pulAddend -= ulCount;
}
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
} }
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
}
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/** /**
@ -259,19 +260,19 @@
* *
* @return *pulAddend value before increment. * @return *pulAddend value before increment.
*/ */
static portFORCE_INLINE uint32_t Atomic_Increment_u32( uint32_t volatile * pulAddend ) static portFORCE_INLINE uint32_t Atomic_Increment_u32( uint32_t volatile * pulAddend )
{
uint32_t ulCurrent;
ATOMIC_ENTER_CRITICAL();
{ {
uint32_t ulCurrent; ulCurrent = *pulAddend;
*pulAddend += 1;
ATOMIC_ENTER_CRITICAL();
{
ulCurrent = *pulAddend;
*pulAddend += 1;
}
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
} }
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
}
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/** /**
@ -284,19 +285,19 @@
* *
* @return *pulAddend value before decrement. * @return *pulAddend value before decrement.
*/ */
static portFORCE_INLINE uint32_t Atomic_Decrement_u32( uint32_t volatile * pulAddend ) static portFORCE_INLINE uint32_t Atomic_Decrement_u32( uint32_t volatile * pulAddend )
{
uint32_t ulCurrent;
ATOMIC_ENTER_CRITICAL();
{ {
uint32_t ulCurrent; ulCurrent = *pulAddend;
*pulAddend -= 1;
ATOMIC_ENTER_CRITICAL();
{
ulCurrent = *pulAddend;
*pulAddend -= 1;
}
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
} }
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
}
/*----------------------------- Bitwise Logical ------------------------------*/ /*----------------------------- Bitwise Logical ------------------------------*/
@ -311,20 +312,20 @@
* *
* @return The original value of *pulDestination. * @return The original value of *pulDestination.
*/ */
static portFORCE_INLINE uint32_t Atomic_OR_u32( uint32_t volatile * pulDestination, static portFORCE_INLINE uint32_t Atomic_OR_u32( uint32_t volatile * pulDestination,
uint32_t ulValue ) uint32_t ulValue )
{
uint32_t ulCurrent;
ATOMIC_ENTER_CRITICAL();
{ {
uint32_t ulCurrent; ulCurrent = *pulDestination;
*pulDestination |= ulValue;
ATOMIC_ENTER_CRITICAL();
{
ulCurrent = *pulDestination;
*pulDestination |= ulValue;
}
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
} }
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
}
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/** /**
@ -338,20 +339,20 @@
* *
* @return The original value of *pulDestination. * @return The original value of *pulDestination.
*/ */
static portFORCE_INLINE uint32_t Atomic_AND_u32( uint32_t volatile * pulDestination, static portFORCE_INLINE uint32_t Atomic_AND_u32( uint32_t volatile * pulDestination,
uint32_t ulValue ) uint32_t ulValue )
{
uint32_t ulCurrent;
ATOMIC_ENTER_CRITICAL();
{ {
uint32_t ulCurrent; ulCurrent = *pulDestination;
*pulDestination &= ulValue;
ATOMIC_ENTER_CRITICAL();
{
ulCurrent = *pulDestination;
*pulDestination &= ulValue;
}
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
} }
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
}
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/** /**
@ -365,20 +366,20 @@
* *
* @return The original value of *pulDestination. * @return The original value of *pulDestination.
*/ */
static portFORCE_INLINE uint32_t Atomic_NAND_u32( uint32_t volatile * pulDestination, static portFORCE_INLINE uint32_t Atomic_NAND_u32( uint32_t volatile * pulDestination,
uint32_t ulValue ) uint32_t ulValue )
{
uint32_t ulCurrent;
ATOMIC_ENTER_CRITICAL();
{ {
uint32_t ulCurrent; ulCurrent = *pulDestination;
*pulDestination = ~( ulCurrent & ulValue );
ATOMIC_ENTER_CRITICAL();
{
ulCurrent = *pulDestination;
*pulDestination = ~( ulCurrent & ulValue );
}
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
} }
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
}
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/** /**
@ -392,23 +393,25 @@
* *
* @return The original value of *pulDestination. * @return The original value of *pulDestination.
*/ */
static portFORCE_INLINE uint32_t Atomic_XOR_u32( uint32_t volatile * pulDestination, static portFORCE_INLINE uint32_t Atomic_XOR_u32( uint32_t volatile * pulDestination,
uint32_t ulValue ) uint32_t ulValue )
{
uint32_t ulCurrent;
ATOMIC_ENTER_CRITICAL();
{ {
uint32_t ulCurrent; ulCurrent = *pulDestination;
*pulDestination ^= ulValue;
ATOMIC_ENTER_CRITICAL();
{
ulCurrent = *pulDestination;
*pulDestination ^= ulValue;
}
ATOMIC_EXIT_CRITICAL();
return ulCurrent;
} }
ATOMIC_EXIT_CRITICAL();
#ifdef __cplusplus return ulCurrent;
} }
#endif
/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif /* ATOMIC_H */ #endif /* ATOMIC_H */

143
include/croutine.h
View file

@ -19,52 +19,54 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
#ifndef CO_ROUTINE_H #ifndef CO_ROUTINE_H
#define CO_ROUTINE_H #define CO_ROUTINE_H
#ifndef INC_FREERTOS_H #ifndef INC_FREERTOS_H
#error "include FreeRTOS.h must appear in source files before include croutine.h" #error "include FreeRTOS.h must appear in source files before include croutine.h"
#endif #endif
#include "list.h" #include "list.h"
#ifdef __cplusplus /* *INDENT-OFF* */
extern "C" { #ifdef __cplusplus
#endif extern "C" {
#endif
/* *INDENT-ON* */
/* Used to hide the implementation of the co-routine control block. The /* Used to hide the implementation of the co-routine control block. The
* control block structure however has to be included in the header due to * control block structure however has to be included in the header due to
* the macro implementation of the co-routine functionality. */ * the macro implementation of the co-routine functionality. */
typedef void * CoRoutineHandle_t; typedef void * CoRoutineHandle_t;
/* Defines the prototype to which co-routine functions must conform. */ /* Defines the prototype to which co-routine functions must conform. */
typedef void (* crCOROUTINE_CODE)( CoRoutineHandle_t, typedef void (* crCOROUTINE_CODE)( CoRoutineHandle_t,
UBaseType_t ); UBaseType_t );
typedef struct corCoRoutineControlBlock typedef struct corCoRoutineControlBlock
{ {
crCOROUTINE_CODE pxCoRoutineFunction; crCOROUTINE_CODE pxCoRoutineFunction;
ListItem_t xGenericListItem; /*< List item used to place the CRCB in ready and blocked queues. */ ListItem_t xGenericListItem; /*< List item used to place the CRCB in ready and blocked queues. */
ListItem_t xEventListItem; /*< List item used to place the CRCB in event lists. */ ListItem_t xEventListItem; /*< List item used to place the CRCB in event lists. */
UBaseType_t uxPriority; /*< The priority of the co-routine in relation to other co-routines. */ UBaseType_t uxPriority; /*< The priority of the co-routine in relation to other co-routines. */
UBaseType_t uxIndex; /*< Used to distinguish between co-routines when multiple co-routines use the same co-routine function. */ UBaseType_t uxIndex; /*< Used to distinguish between co-routines when multiple co-routines use the same co-routine function. */
uint16_t uxState; /*< Used internally by the co-routine implementation. */ uint16_t uxState; /*< Used internally by the co-routine implementation. */
} CRCB_t; /* Co-routine control block. Note must be identical in size down to uxPriority with TCB_t. */ } CRCB_t; /* Co-routine control block. Note must be identical in size down to uxPriority with TCB_t. */
/** /**
* croutine. h * croutine. h
*<pre> * <pre>
* BaseType_t xCoRoutineCreate( * BaseType_t xCoRoutineCreate(
* crCOROUTINE_CODE pxCoRoutineCode, * crCOROUTINE_CODE pxCoRoutineCode,
* UBaseType_t uxPriority, * UBaseType_t uxPriority,
* UBaseType_t uxIndex * UBaseType_t uxIndex
* );</pre> * );
* </pre>
* *
* Create a new co-routine and add it to the list of co-routines that are * Create a new co-routine and add it to the list of co-routines that are
* ready to run. * ready to run.
@ -129,15 +131,16 @@
* \defgroup xCoRoutineCreate xCoRoutineCreate * \defgroup xCoRoutineCreate xCoRoutineCreate
* \ingroup Tasks * \ingroup Tasks
*/ */
BaseType_t xCoRoutineCreate( crCOROUTINE_CODE pxCoRoutineCode, BaseType_t xCoRoutineCreate( crCOROUTINE_CODE pxCoRoutineCode,
UBaseType_t uxPriority, UBaseType_t uxPriority,
UBaseType_t uxIndex ); UBaseType_t uxIndex );
/** /**
* croutine. h * croutine. h
*<pre> * <pre>
* void vCoRoutineSchedule( void );</pre> * void vCoRoutineSchedule( void );
* </pre>
* *
* Run a co-routine. * Run a co-routine.
* *
@ -173,12 +176,13 @@
* \defgroup vCoRoutineSchedule vCoRoutineSchedule * \defgroup vCoRoutineSchedule vCoRoutineSchedule
* \ingroup Tasks * \ingroup Tasks
*/ */
void vCoRoutineSchedule( void ); void vCoRoutineSchedule( void );
/** /**
* croutine. h * croutine. h
* <pre> * <pre>
* crSTART( CoRoutineHandle_t xHandle );</pre> * crSTART( CoRoutineHandle_t xHandle );
* </pre>
* *
* This macro MUST always be called at the start of a co-routine function. * This macro MUST always be called at the start of a co-routine function.
* *
@ -200,18 +204,20 @@
* *
* // Must end every co-routine with a call to crEND(); * // Must end every co-routine with a call to crEND();
* crEND(); * crEND();
* }</pre> * }
* </pre>
* \defgroup crSTART crSTART * \defgroup crSTART crSTART
* \ingroup Tasks * \ingroup Tasks
*/ */
#define crSTART( pxCRCB ) \ #define crSTART( pxCRCB ) \
switch( ( ( CRCB_t * ) ( pxCRCB ) )->uxState ) { \ switch( ( ( CRCB_t * ) ( pxCRCB ) )->uxState ) { \
case 0: case 0:
/** /**
* croutine. h * croutine. h
* <pre> * <pre>
* crEND();</pre> * crEND();
* </pre>
* *
* This macro MUST always be called at the end of a co-routine function. * This macro MUST always be called at the end of a co-routine function.
* *
@ -233,27 +239,29 @@
* *
* // Must end every co-routine with a call to crEND(); * // Must end every co-routine with a call to crEND();
* crEND(); * crEND();
* }</pre> * }
* </pre>
* \defgroup crSTART crSTART * \defgroup crSTART crSTART
* \ingroup Tasks * \ingroup Tasks
*/ */
#define crEND() } #define crEND() }
/* /*
* These macros are intended for internal use by the co-routine implementation * These macros are intended for internal use by the co-routine implementation
* only. The macros should not be used directly by application writers. * only. The macros should not be used directly by application writers.
*/ */
#define crSET_STATE0( xHandle ) \ #define crSET_STATE0( xHandle ) \
( ( CRCB_t * ) ( xHandle ) )->uxState = ( __LINE__ * 2 ); return; \ ( ( CRCB_t * ) ( xHandle ) )->uxState = ( __LINE__ * 2 ); return; \
case ( __LINE__ * 2 ): case ( __LINE__ * 2 ):
#define crSET_STATE1( xHandle ) \ #define crSET_STATE1( xHandle ) \
( ( CRCB_t * ) ( xHandle ) )->uxState = ( ( __LINE__ * 2 ) + 1 ); return; \ ( ( CRCB_t * ) ( xHandle ) )->uxState = ( ( __LINE__ * 2 ) + 1 ); return; \
case ( ( __LINE__ * 2 ) + 1 ): case ( ( __LINE__ * 2 ) + 1 ):
/** /**
* croutine. h * croutine. h
*<pre> * <pre>
* crDELAY( CoRoutineHandle_t xHandle, TickType_t xTicksToDelay );</pre> * crDELAY( CoRoutineHandle_t xHandle, TickType_t xTicksToDelay );
* </pre>
* *
* Delay a co-routine for a fixed period of time. * Delay a co-routine for a fixed period of time.
* *
@ -292,11 +300,12 @@
* *
* // Must end every co-routine with a call to crEND(); * // Must end every co-routine with a call to crEND();
* crEND(); * crEND();
* }</pre> * }
* </pre>
* \defgroup crDELAY crDELAY * \defgroup crDELAY crDELAY
* \ingroup Tasks * \ingroup Tasks
*/ */
#define crDELAY( xHandle, xTicksToDelay ) \ #define crDELAY( xHandle, xTicksToDelay ) \
if( ( xTicksToDelay ) > 0 ) \ if( ( xTicksToDelay ) > 0 ) \
{ \ { \
vCoRoutineAddToDelayedList( ( xTicksToDelay ), NULL ); \ vCoRoutineAddToDelayedList( ( xTicksToDelay ), NULL ); \
@ -311,7 +320,8 @@
* void *pvItemToQueue, * void *pvItemToQueue,
* TickType_t xTicksToWait, * TickType_t xTicksToWait,
* BaseType_t *pxResult * BaseType_t *pxResult
* )</pre> * )
* </pre>
* *
* The macro's crQUEUE_SEND() and crQUEUE_RECEIVE() are the co-routine * The macro's crQUEUE_SEND() and crQUEUE_RECEIVE() are the co-routine
* equivalent to the xQueueSend() and xQueueReceive() functions used by tasks. * equivalent to the xQueueSend() and xQueueReceive() functions used by tasks.
@ -382,11 +392,12 @@
* *
* // Co-routines must end with a call to crEND(). * // Co-routines must end with a call to crEND().
* crEND(); * crEND();
* }</pre> * }
* </pre>
* \defgroup crQUEUE_SEND crQUEUE_SEND * \defgroup crQUEUE_SEND crQUEUE_SEND
* \ingroup Tasks * \ingroup Tasks
*/ */
#define crQUEUE_SEND( xHandle, pxQueue, pvItemToQueue, xTicksToWait, pxResult ) \ #define crQUEUE_SEND( xHandle, pxQueue, pvItemToQueue, xTicksToWait, pxResult ) \
{ \ { \
*( pxResult ) = xQueueCRSend( ( pxQueue ), ( pvItemToQueue ), ( xTicksToWait ) ); \ *( pxResult ) = xQueueCRSend( ( pxQueue ), ( pvItemToQueue ), ( xTicksToWait ) ); \
if( *( pxResult ) == errQUEUE_BLOCKED ) \ if( *( pxResult ) == errQUEUE_BLOCKED ) \
@ -410,7 +421,8 @@
* void *pvBuffer, * void *pvBuffer,
* TickType_t xTicksToWait, * TickType_t xTicksToWait,
* BaseType_t *pxResult * BaseType_t *pxResult
* )</pre> * )
* </pre>
* *
* The macro's crQUEUE_SEND() and crQUEUE_RECEIVE() are the co-routine * The macro's crQUEUE_SEND() and crQUEUE_RECEIVE() are the co-routine
* equivalent to the xQueueSend() and xQueueReceive() functions used by tasks. * equivalent to the xQueueSend() and xQueueReceive() functions used by tasks.
@ -474,11 +486,12 @@
* } * }
* *
* crEND(); * crEND();
* }</pre> * }
* </pre>
* \defgroup crQUEUE_RECEIVE crQUEUE_RECEIVE * \defgroup crQUEUE_RECEIVE crQUEUE_RECEIVE
* \ingroup Tasks * \ingroup Tasks
*/ */
#define crQUEUE_RECEIVE( xHandle, pxQueue, pvBuffer, xTicksToWait, pxResult ) \ #define crQUEUE_RECEIVE( xHandle, pxQueue, pvBuffer, xTicksToWait, pxResult ) \
{ \ { \
*( pxResult ) = xQueueCRReceive( ( pxQueue ), ( pvBuffer ), ( xTicksToWait ) ); \ *( pxResult ) = xQueueCRReceive( ( pxQueue ), ( pvBuffer ), ( xTicksToWait ) ); \
if( *( pxResult ) == errQUEUE_BLOCKED ) \ if( *( pxResult ) == errQUEUE_BLOCKED ) \
@ -500,7 +513,8 @@
* QueueHandle_t pxQueue, * QueueHandle_t pxQueue,
* void *pvItemToQueue, * void *pvItemToQueue,
* BaseType_t xCoRoutinePreviouslyWoken * BaseType_t xCoRoutinePreviouslyWoken
* )</pre> * )
* </pre>
* *
* The macro's crQUEUE_SEND_FROM_ISR() and crQUEUE_RECEIVE_FROM_ISR() are the * The macro's crQUEUE_SEND_FROM_ISR() and crQUEUE_RECEIVE_FROM_ISR() are the
* co-routine equivalent to the xQueueSendFromISR() and xQueueReceiveFromISR() * co-routine equivalent to the xQueueSendFromISR() and xQueueReceiveFromISR()
@ -583,11 +597,13 @@
* // many characters are posted to the queue. * // many characters are posted to the queue.
* xCRWokenByPost = crQUEUE_SEND_FROM_ISR( xCommsRxQueue, &cRxedChar, xCRWokenByPost ); * xCRWokenByPost = crQUEUE_SEND_FROM_ISR( xCommsRxQueue, &cRxedChar, xCRWokenByPost );
* } * }
* }</pre> * }
* </pre>
* \defgroup crQUEUE_SEND_FROM_ISR crQUEUE_SEND_FROM_ISR * \defgroup crQUEUE_SEND_FROM_ISR crQUEUE_SEND_FROM_ISR
* \ingroup Tasks * \ingroup Tasks
*/ */
#define crQUEUE_SEND_FROM_ISR( pxQueue, pvItemToQueue, xCoRoutinePreviouslyWoken ) xQueueCRSendFromISR( ( pxQueue ), ( pvItemToQueue ), ( xCoRoutinePreviouslyWoken ) ) #define crQUEUE_SEND_FROM_ISR( pxQueue, pvItemToQueue, xCoRoutinePreviouslyWoken ) \
xQueueCRSendFromISR( ( pxQueue ), ( pvItemToQueue ), ( xCoRoutinePreviouslyWoken ) )
/** /**
@ -597,7 +613,8 @@
* QueueHandle_t pxQueue, * QueueHandle_t pxQueue,
* void *pvBuffer, * void *pvBuffer,
* BaseType_t * pxCoRoutineWoken * BaseType_t * pxCoRoutineWoken
* )</pre> * )
* </pre>
* *
* The macro's crQUEUE_SEND_FROM_ISR() and crQUEUE_RECEIVE_FROM_ISR() are the * The macro's crQUEUE_SEND_FROM_ISR() and crQUEUE_RECEIVE_FROM_ISR() are the
* co-routine equivalent to the xQueueSendFromISR() and xQueueReceiveFromISR() * co-routine equivalent to the xQueueSendFromISR() and xQueueReceiveFromISR()
@ -696,11 +713,13 @@
* SEND_CHARACTER( cCharToTx ); * SEND_CHARACTER( cCharToTx );
* } * }
* } * }
* }</pre> * }
* </pre>
* \defgroup crQUEUE_RECEIVE_FROM_ISR crQUEUE_RECEIVE_FROM_ISR * \defgroup crQUEUE_RECEIVE_FROM_ISR crQUEUE_RECEIVE_FROM_ISR
* \ingroup Tasks * \ingroup Tasks
*/ */
#define crQUEUE_RECEIVE_FROM_ISR( pxQueue, pvBuffer, pxCoRoutineWoken ) xQueueCRReceiveFromISR( ( pxQueue ), ( pvBuffer ), ( pxCoRoutineWoken ) ) #define crQUEUE_RECEIVE_FROM_ISR( pxQueue, pvBuffer, pxCoRoutineWoken ) \
xQueueCRReceiveFromISR( ( pxQueue ), ( pvBuffer ), ( pxCoRoutineWoken ) )
/* /*
* This function is intended for internal use by the co-routine macros only. * This function is intended for internal use by the co-routine macros only.
@ -711,8 +730,8 @@
* Removes the current co-routine from its ready list and places it in the * Removes the current co-routine from its ready list and places it in the
* appropriate delayed list. * appropriate delayed list.
*/ */
void vCoRoutineAddToDelayedList( TickType_t xTicksToDelay, void vCoRoutineAddToDelayedList( TickType_t xTicksToDelay,
List_t * pxEventList ); List_t * pxEventList );
/* /*
* This function is intended for internal use by the queue implementation only. * This function is intended for internal use by the queue implementation only.
@ -721,10 +740,12 @@
* Removes the highest priority co-routine from the event list and places it in * Removes the highest priority co-routine from the event list and places it in
* the pending ready list. * the pending ready list.
*/ */
BaseType_t xCoRoutineRemoveFromEventList( const List_t * pxEventList ); BaseType_t xCoRoutineRemoveFromEventList( const List_t * pxEventList );
#ifdef __cplusplus /* *INDENT-OFF* */
} #ifdef __cplusplus
#endif }
#endif
/* *INDENT-ON* */
#endif /* CO_ROUTINE_H */ #endif /* CO_ROUTINE_H */

5
include/deprecated_definitions.h
View file

@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
#ifndef DEPRECATED_DEFINITIONS_H #ifndef DEPRECATED_DEFINITIONS_H

195
include/event_groups.h
View file

@ -19,25 +19,26 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
#ifndef EVENT_GROUPS_H #ifndef EVENT_GROUPS_H
#define EVENT_GROUPS_H #define EVENT_GROUPS_H
#ifndef INC_FREERTOS_H #ifndef INC_FREERTOS_H
#error "include FreeRTOS.h" must appear in source files before "include event_groups.h" #error "include FreeRTOS.h" must appear in source files before "include event_groups.h"
#endif #endif
/* FreeRTOS includes. */ /* FreeRTOS includes. */
#include "timers.h" #include "timers.h"
#ifdef __cplusplus /* *INDENT-OFF* */
extern "C" { #ifdef __cplusplus
#endif extern "C" {
#endif
/* *INDENT-ON* */
/** /**
* An event group is a collection of bits to which an application can assign a * An event group is a collection of bits to which an application can assign a
@ -78,8 +79,8 @@
* \defgroup EventGroupHandle_t EventGroupHandle_t * \defgroup EventGroupHandle_t EventGroupHandle_t
* \ingroup EventGroup * \ingroup EventGroup
*/ */
struct EventGroupDef_t; struct EventGroupDef_t;
typedef struct EventGroupDef_t * EventGroupHandle_t; typedef struct EventGroupDef_t * EventGroupHandle_t;
/* /*
* The type that holds event bits always matches TickType_t - therefore the * The type that holds event bits always matches TickType_t - therefore the
@ -89,11 +90,11 @@
* \defgroup EventBits_t EventBits_t * \defgroup EventBits_t EventBits_t
* \ingroup EventGroup * \ingroup EventGroup
*/ */
typedef TickType_t EventBits_t; typedef TickType_t EventBits_t;
/** /**
* event_groups.h * event_groups.h
*<pre> * <pre>
* EventGroupHandle_t xEventGroupCreate( void ); * EventGroupHandle_t xEventGroupCreate( void );
* </pre> * </pre>
* *
@ -143,13 +144,13 @@
* \defgroup xEventGroupCreate xEventGroupCreate * \defgroup xEventGroupCreate xEventGroupCreate
* \ingroup EventGroup * \ingroup EventGroup
*/ */
#if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) #if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
EventGroupHandle_t xEventGroupCreate( void ) PRIVILEGED_FUNCTION; EventGroupHandle_t xEventGroupCreate( void ) PRIVILEGED_FUNCTION;
#endif #endif
/** /**
* event_groups.h * event_groups.h
*<pre> * <pre>
* EventGroupHandle_t xEventGroupCreateStatic( EventGroupHandle_t * pxEventGroupBuffer ); * EventGroupHandle_t xEventGroupCreateStatic( EventGroupHandle_t * pxEventGroupBuffer );
* </pre> * </pre>
* *
@ -196,13 +197,13 @@
* xEventGroup = xEventGroupCreateStatic( &xEventGroupBuffer ); * xEventGroup = xEventGroupCreateStatic( &xEventGroupBuffer );
* </pre> * </pre>
*/ */
#if ( configSUPPORT_STATIC_ALLOCATION == 1 ) #if ( configSUPPORT_STATIC_ALLOCATION == 1 )
EventGroupHandle_t xEventGroupCreateStatic( StaticEventGroup_t * pxEventGroupBuffer ) PRIVILEGED_FUNCTION; EventGroupHandle_t xEventGroupCreateStatic( StaticEventGroup_t * pxEventGroupBuffer ) PRIVILEGED_FUNCTION;
#endif #endif
/** /**
* event_groups.h * event_groups.h
*<pre> * <pre>
* EventBits_t xEventGroupWaitBits( EventGroupHandle_t xEventGroup, * EventBits_t xEventGroupWaitBits( EventGroupHandle_t xEventGroup,
* const EventBits_t uxBitsToWaitFor, * const EventBits_t uxBitsToWaitFor,
* const BaseType_t xClearOnExit, * const BaseType_t xClearOnExit,
@ -253,8 +254,8 @@
* *
* Example usage: * Example usage:
* <pre> * <pre>
#define BIT_0 ( 1 << 0 ) #define BIT_0 ( 1 << 0 )
#define BIT_4 ( 1 << 4 ) #define BIT_4 ( 1 << 4 )
* *
* void aFunction( EventGroupHandle_t xEventGroup ) * void aFunction( EventGroupHandle_t xEventGroup )
* { * {
@ -264,11 +265,11 @@
* // Wait a maximum of 100ms for either bit 0 or bit 4 to be set within * // Wait a maximum of 100ms for either bit 0 or bit 4 to be set within
* // the event group. Clear the bits before exiting. * // the event group. Clear the bits before exiting.
* uxBits = xEventGroupWaitBits( * uxBits = xEventGroupWaitBits(
* xEventGroup, // The event group being tested. * xEventGroup, // The event group being tested.
* BIT_0 | BIT_4, // The bits within the event group to wait for. * BIT_0 | BIT_4, // The bits within the event group to wait for.
* pdTRUE, // BIT_0 and BIT_4 should be cleared before returning. * pdTRUE, // BIT_0 and BIT_4 should be cleared before returning.
* pdFALSE, // Don't wait for both bits, either bit will do. * pdFALSE, // Don't wait for both bits, either bit will do.
* xTicksToWait ); // Wait a maximum of 100ms for either bit to be set. * xTicksToWait ); // Wait a maximum of 100ms for either bit to be set.
* *
* if( ( uxBits & ( BIT_0 | BIT_4 ) ) == ( BIT_0 | BIT_4 ) ) * if( ( uxBits & ( BIT_0 | BIT_4 ) ) == ( BIT_0 | BIT_4 ) )
* { * {
@ -292,15 +293,15 @@
* \defgroup xEventGroupWaitBits xEventGroupWaitBits * \defgroup xEventGroupWaitBits xEventGroupWaitBits
* \ingroup EventGroup * \ingroup EventGroup
*/ */
EventBits_t xEventGroupWaitBits( EventGroupHandle_t xEventGroup, EventBits_t xEventGroupWaitBits( EventGroupHandle_t xEventGroup,
const EventBits_t uxBitsToWaitFor, const EventBits_t uxBitsToWaitFor,
const BaseType_t xClearOnExit, const BaseType_t xClearOnExit,
const BaseType_t xWaitForAllBits, const BaseType_t xWaitForAllBits,
TickType_t xTicksToWait ) PRIVILEGED_FUNCTION; TickType_t xTicksToWait ) PRIVILEGED_FUNCTION;
/** /**
* event_groups.h * event_groups.h
*<pre> * <pre>
* EventBits_t xEventGroupClearBits( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToClear ); * EventBits_t xEventGroupClearBits( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToClear );
* </pre> * </pre>
* *
@ -317,8 +318,8 @@
* *
* Example usage: * Example usage:
* <pre> * <pre>
#define BIT_0 ( 1 << 0 ) #define BIT_0 ( 1 << 0 )
#define BIT_4 ( 1 << 4 ) #define BIT_4 ( 1 << 4 )
* *
* void aFunction( EventGroupHandle_t xEventGroup ) * void aFunction( EventGroupHandle_t xEventGroup )
* { * {
@ -326,7 +327,7 @@
* *
* // Clear bit 0 and bit 4 in xEventGroup. * // Clear bit 0 and bit 4 in xEventGroup.
* uxBits = xEventGroupClearBits( * uxBits = xEventGroupClearBits(
* xEventGroup, // The event group being updated. * xEventGroup, // The event group being updated.
* BIT_0 | BIT_4 );// The bits being cleared. * BIT_0 | BIT_4 );// The bits being cleared.
* *
* if( ( uxBits & ( BIT_0 | BIT_4 ) ) == ( BIT_0 | BIT_4 ) ) * if( ( uxBits & ( BIT_0 | BIT_4 ) ) == ( BIT_0 | BIT_4 ) )
@ -353,12 +354,12 @@
* \defgroup xEventGroupClearBits xEventGroupClearBits * \defgroup xEventGroupClearBits xEventGroupClearBits
* \ingroup EventGroup * \ingroup EventGroup
*/ */
EventBits_t xEventGroupClearBits( EventGroupHandle_t xEventGroup, EventBits_t xEventGroupClearBits( EventGroupHandle_t xEventGroup,
const EventBits_t uxBitsToClear ) PRIVILEGED_FUNCTION; const EventBits_t uxBitsToClear ) PRIVILEGED_FUNCTION;
/** /**
* event_groups.h * event_groups.h
*<pre> * <pre>
* BaseType_t xEventGroupClearBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet ); * BaseType_t xEventGroupClearBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet );
* </pre> * </pre>
* *
@ -386,8 +387,8 @@
* *
* Example usage: * Example usage:
* <pre> * <pre>
#define BIT_0 ( 1 << 0 ) #define BIT_0 ( 1 << 0 )
#define BIT_4 ( 1 << 4 ) #define BIT_4 ( 1 << 4 )
* *
* // An event group which it is assumed has already been created by a call to * // An event group which it is assumed has already been created by a call to
* // xEventGroupCreate(). * // xEventGroupCreate().
@ -397,7 +398,7 @@
* { * {
* // Clear bit 0 and bit 4 in xEventGroup. * // Clear bit 0 and bit 4 in xEventGroup.
* xResult = xEventGroupClearBitsFromISR( * xResult = xEventGroupClearBitsFromISR(
* xEventGroup, // The event group being updated. * xEventGroup, // The event group being updated.
* BIT_0 | BIT_4 ); // The bits being set. * BIT_0 | BIT_4 ); // The bits being set.
* *
* if( xResult == pdPASS ) * if( xResult == pdPASS )
@ -409,16 +410,17 @@
* \defgroup xEventGroupClearBitsFromISR xEventGroupClearBitsFromISR * \defgroup xEventGroupClearBitsFromISR xEventGroupClearBitsFromISR
* \ingroup EventGroup * \ingroup EventGroup
*/ */
#if ( configUSE_TRACE_FACILITY == 1 ) #if ( configUSE_TRACE_FACILITY == 1 )
BaseType_t xEventGroupClearBitsFromISR( EventGroupHandle_t xEventGroup, BaseType_t xEventGroupClearBitsFromISR( EventGroupHandle_t xEventGroup,
const EventBits_t uxBitsToClear ) PRIVILEGED_FUNCTION; const EventBits_t uxBitsToClear ) PRIVILEGED_FUNCTION;
#else #else
#define xEventGroupClearBitsFromISR( xEventGroup, uxBitsToClear ) xTimerPendFunctionCallFromISR( vEventGroupClearBitsCallback, ( void * ) xEventGroup, ( uint32_t ) uxBitsToClear, NULL ) #define xEventGroupClearBitsFromISR( xEventGroup, uxBitsToClear ) \
#endif xTimerPendFunctionCallFromISR( vEventGroupClearBitsCallback, ( void * ) xEventGroup, ( uint32_t ) uxBitsToClear, NULL )
#endif
/** /**
* event_groups.h * event_groups.h
*<pre> * <pre>
* EventBits_t xEventGroupSetBits( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet ); * EventBits_t xEventGroupSetBits( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet );
* </pre> * </pre>
* *
@ -447,8 +449,8 @@
* *
* Example usage: * Example usage:
* <pre> * <pre>
#define BIT_0 ( 1 << 0 ) #define BIT_0 ( 1 << 0 )
#define BIT_4 ( 1 << 4 ) #define BIT_4 ( 1 << 4 )
* *
* void aFunction( EventGroupHandle_t xEventGroup ) * void aFunction( EventGroupHandle_t xEventGroup )
* { * {
@ -456,7 +458,7 @@
* *
* // Set bit 0 and bit 4 in xEventGroup. * // Set bit 0 and bit 4 in xEventGroup.
* uxBits = xEventGroupSetBits( * uxBits = xEventGroupSetBits(
* xEventGroup, // The event group being updated. * xEventGroup, // The event group being updated.
* BIT_0 | BIT_4 );// The bits being set. * BIT_0 | BIT_4 );// The bits being set.
* *
* if( ( uxBits & ( BIT_0 | BIT_4 ) ) == ( BIT_0 | BIT_4 ) ) * if( ( uxBits & ( BIT_0 | BIT_4 ) ) == ( BIT_0 | BIT_4 ) )
@ -488,12 +490,12 @@
* \defgroup xEventGroupSetBits xEventGroupSetBits * \defgroup xEventGroupSetBits xEventGroupSetBits
* \ingroup EventGroup * \ingroup EventGroup
*/ */
EventBits_t xEventGroupSetBits( EventGroupHandle_t xEventGroup, EventBits_t xEventGroupSetBits( EventGroupHandle_t xEventGroup,
const EventBits_t uxBitsToSet ) PRIVILEGED_FUNCTION; const EventBits_t uxBitsToSet ) PRIVILEGED_FUNCTION;
/** /**
* event_groups.h * event_groups.h
*<pre> * <pre>
* BaseType_t xEventGroupSetBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet, BaseType_t *pxHigherPriorityTaskWoken ); * BaseType_t xEventGroupSetBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet, BaseType_t *pxHigherPriorityTaskWoken );
* </pre> * </pre>
* *
@ -529,8 +531,8 @@
* *
* Example usage: * Example usage:
* <pre> * <pre>
#define BIT_0 ( 1 << 0 ) #define BIT_0 ( 1 << 0 )
#define BIT_4 ( 1 << 4 ) #define BIT_4 ( 1 << 4 )
* *
* // An event group which it is assumed has already been created by a call to * // An event group which it is assumed has already been created by a call to
* // xEventGroupCreate(). * // xEventGroupCreate().
@ -545,7 +547,7 @@
* *
* // Set bit 0 and bit 4 in xEventGroup. * // Set bit 0 and bit 4 in xEventGroup.
* xResult = xEventGroupSetBitsFromISR( * xResult = xEventGroupSetBitsFromISR(
* xEventGroup, // The event group being updated. * xEventGroup, // The event group being updated.
* BIT_0 | BIT_4 // The bits being set. * BIT_0 | BIT_4 // The bits being set.
* &xHigherPriorityTaskWoken ); * &xHigherPriorityTaskWoken );
* *
@ -563,18 +565,19 @@
* \defgroup xEventGroupSetBitsFromISR xEventGroupSetBitsFromISR * \defgroup xEventGroupSetBitsFromISR xEventGroupSetBitsFromISR
* \ingroup EventGroup * \ingroup EventGroup
*/ */
#if ( configUSE_TRACE_FACILITY == 1 ) #if ( configUSE_TRACE_FACILITY == 1 )
BaseType_t xEventGroupSetBitsFromISR( EventGroupHandle_t xEventGroup, BaseType_t xEventGroupSetBitsFromISR( EventGroupHandle_t xEventGroup,
const EventBits_t uxBitsToSet, const EventBits_t uxBitsToSet,
BaseType_t * pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION; BaseType_t * pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION;
#else #else
#define xEventGroupSetBitsFromISR( xEventGroup, uxBitsToSet, pxHigherPriorityTaskWoken ) xTimerPendFunctionCallFromISR( vEventGroupSetBitsCallback, ( void * ) xEventGroup, ( uint32_t ) uxBitsToSet, pxHigherPriorityTaskWoken ) #define xEventGroupSetBitsFromISR( xEventGroup, uxBitsToSet, pxHigherPriorityTaskWoken ) \
#endif xTimerPendFunctionCallFromISR( vEventGroupSetBitsCallback, ( void * ) xEventGroup, ( uint32_t ) uxBitsToSet, pxHigherPriorityTaskWoken )
#endif
/** /**
* event_groups.h * event_groups.h
*<pre> * <pre>
* EventBits_t xEventGroupSync( EventGroupHandle_t xEventGroup, * EventBits_t xEventGroupSync( EventGroupHandle_t xEventGroup,
* const EventBits_t uxBitsToSet, * const EventBits_t uxBitsToSet,
* const EventBits_t uxBitsToWaitFor, * const EventBits_t uxBitsToWaitFor,
* TickType_t xTicksToWait ); * TickType_t xTicksToWait );
@ -619,9 +622,9 @@
* Example usage: * Example usage:
* <pre> * <pre>
* // Bits used by the three tasks. * // Bits used by the three tasks.
#define TASK_0_BIT ( 1 << 0 ) #define TASK_0_BIT ( 1 << 0 )
#define TASK_1_BIT ( 1 << 1 ) #define TASK_1_BIT ( 1 << 1 )
#define TASK_2_BIT ( 1 << 2 ) #define TASK_2_BIT ( 1 << 2 )
* *
#define ALL_SYNC_BITS ( TASK_0_BIT | TASK_1_BIT | TASK_2_BIT ) #define ALL_SYNC_BITS ( TASK_0_BIT | TASK_1_BIT | TASK_2_BIT )
* *
@ -695,15 +698,15 @@
* \defgroup xEventGroupSync xEventGroupSync * \defgroup xEventGroupSync xEventGroupSync
* \ingroup EventGroup * \ingroup EventGroup
*/ */
EventBits_t xEventGroupSync( EventGroupHandle_t xEventGroup, EventBits_t xEventGroupSync( EventGroupHandle_t xEventGroup,
const EventBits_t uxBitsToSet, const EventBits_t uxBitsToSet,
const EventBits_t uxBitsToWaitFor, const EventBits_t uxBitsToWaitFor,
TickType_t xTicksToWait ) PRIVILEGED_FUNCTION; TickType_t xTicksToWait ) PRIVILEGED_FUNCTION;
/** /**
* event_groups.h * event_groups.h
*<pre> * <pre>
* EventBits_t xEventGroupGetBits( EventGroupHandle_t xEventGroup ); * EventBits_t xEventGroupGetBits( EventGroupHandle_t xEventGroup );
* </pre> * </pre>
* *
@ -717,11 +720,11 @@
* \defgroup xEventGroupGetBits xEventGroupGetBits * \defgroup xEventGroupGetBits xEventGroupGetBits
* \ingroup EventGroup * \ingroup EventGroup
*/ */
#define xEventGroupGetBits( xEventGroup ) xEventGroupClearBits( xEventGroup, 0 ) #define xEventGroupGetBits( xEventGroup ) xEventGroupClearBits( xEventGroup, 0 )
/** /**
* event_groups.h * event_groups.h
*<pre> * <pre>
* EventBits_t xEventGroupGetBitsFromISR( EventGroupHandle_t xEventGroup ); * EventBits_t xEventGroupGetBitsFromISR( EventGroupHandle_t xEventGroup );
* </pre> * </pre>
* *
@ -734,11 +737,11 @@
* \defgroup xEventGroupGetBitsFromISR xEventGroupGetBitsFromISR * \defgroup xEventGroupGetBitsFromISR xEventGroupGetBitsFromISR
* \ingroup EventGroup * \ingroup EventGroup
*/ */
EventBits_t xEventGroupGetBitsFromISR( EventGroupHandle_t xEventGroup ) PRIVILEGED_FUNCTION; EventBits_t xEventGroupGetBitsFromISR( EventGroupHandle_t xEventGroup ) PRIVILEGED_FUNCTION;
/** /**
* event_groups.h * event_groups.h
*<pre> * <pre>
* void xEventGroupDelete( EventGroupHandle_t xEventGroup ); * void xEventGroupDelete( EventGroupHandle_t xEventGroup );
* </pre> * </pre>
* *
@ -748,23 +751,25 @@
* *
* @param xEventGroup The event group being deleted. * @param xEventGroup The event group being deleted.
*/ */
void vEventGroupDelete( EventGroupHandle_t xEventGroup ) PRIVILEGED_FUNCTION; void vEventGroupDelete( EventGroupHandle_t xEventGroup ) PRIVILEGED_FUNCTION;
/* For internal use only. */ /* For internal use only. */
void vEventGroupSetBitsCallback( void * pvEventGroup, void vEventGroupSetBitsCallback( void * pvEventGroup,
const uint32_t ulBitsToSet ) PRIVILEGED_FUNCTION; const uint32_t ulBitsToSet ) PRIVILEGED_FUNCTION;
void vEventGroupClearBitsCallback( void * pvEventGroup, void vEventGroupClearBitsCallback( void * pvEventGroup,
const uint32_t ulBitsToClear ) PRIVILEGED_FUNCTION; const uint32_t ulBitsToClear ) PRIVILEGED_FUNCTION;
#if ( configUSE_TRACE_FACILITY == 1 ) #if ( configUSE_TRACE_FACILITY == 1 )
UBaseType_t uxEventGroupGetNumber( void * xEventGroup ) PRIVILEGED_FUNCTION; UBaseType_t uxEventGroupGetNumber( void * xEventGroup ) PRIVILEGED_FUNCTION;
void vEventGroupSetNumber( void * xEventGroup, void vEventGroupSetNumber( void * xEventGroup,
UBaseType_t uxEventGroupNumber ) PRIVILEGED_FUNCTION; UBaseType_t uxEventGroupNumber ) PRIVILEGED_FUNCTION;
#endif #endif
#ifdef __cplusplus /* *INDENT-OFF* */
} #ifdef __cplusplus
#endif }
#endif
/* *INDENT-ON* */
#endif /* EVENT_GROUPS_H */ #endif /* EVENT_GROUPS_H */

186
include/list.h
View file

@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
/* /*
@ -53,12 +52,13 @@
* \ingroup FreeRTOSIntro * \ingroup FreeRTOSIntro
*/ */
#ifndef INC_FREERTOS_H
#error FreeRTOS.h must be included before list.h
#endif
#ifndef LIST_H #ifndef LIST_H
#define LIST_H #define LIST_H
#ifndef INC_FREERTOS_H
#error "FreeRTOS.h must be included before list.h"
#endif
/* /*
* The list structure members are modified from within interrupts, and therefore * The list structure members are modified from within interrupts, and therefore
@ -88,87 +88,89 @@
* FreeRTOSConfig.h (without the quotes): * FreeRTOSConfig.h (without the quotes):
* "#define configLIST_VOLATILE volatile" * "#define configLIST_VOLATILE volatile"
*/ */
#ifndef configLIST_VOLATILE #ifndef configLIST_VOLATILE
#define configLIST_VOLATILE #define configLIST_VOLATILE
#endif /* configSUPPORT_CROSS_MODULE_OPTIMISATION */ #endif /* configSUPPORT_CROSS_MODULE_OPTIMISATION */
#ifdef __cplusplus /* *INDENT-OFF* */
extern "C" { #ifdef __cplusplus
#endif extern "C" {
#endif
/* *INDENT-ON* */
/* Macros that can be used to place known values within the list structures, /* Macros that can be used to place known values within the list structures,
* then check that the known values do not get corrupted during the execution of * then check that the known values do not get corrupted during the execution of
* the application. These may catch the list data structures being overwritten in * the application. These may catch the list data structures being overwritten in
* memory. They will not catch data errors caused by incorrect configuration or * memory. They will not catch data errors caused by incorrect configuration or
* use of FreeRTOS.*/ * use of FreeRTOS.*/
#if ( configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES == 0 ) #if ( configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES == 0 )
/* Define the macros to do nothing. */ /* Define the macros to do nothing. */
#define listFIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE #define listFIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE
#define listSECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE #define listSECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE
#define listFIRST_LIST_INTEGRITY_CHECK_VALUE #define listFIRST_LIST_INTEGRITY_CHECK_VALUE
#define listSECOND_LIST_INTEGRITY_CHECK_VALUE #define listSECOND_LIST_INTEGRITY_CHECK_VALUE
#define listSET_FIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE( pxItem ) #define listSET_FIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE( pxItem )
#define listSET_SECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE( pxItem ) #define listSET_SECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE( pxItem )
#define listSET_LIST_INTEGRITY_CHECK_1_VALUE( pxList ) #define listSET_LIST_INTEGRITY_CHECK_1_VALUE( pxList )
#define listSET_LIST_INTEGRITY_CHECK_2_VALUE( pxList ) #define listSET_LIST_INTEGRITY_CHECK_2_VALUE( pxList )
#define listTEST_LIST_ITEM_INTEGRITY( pxItem ) #define listTEST_LIST_ITEM_INTEGRITY( pxItem )
#define listTEST_LIST_INTEGRITY( pxList ) #define listTEST_LIST_INTEGRITY( pxList )
#else /* if ( configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES == 0 ) */ #else /* if ( configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES == 0 ) */
/* Define macros that add new members into the list structures. */ /* Define macros that add new members into the list structures. */
#define listFIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE TickType_t xListItemIntegrityValue1; #define listFIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE TickType_t xListItemIntegrityValue1;
#define listSECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE TickType_t xListItemIntegrityValue2; #define listSECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE TickType_t xListItemIntegrityValue2;
#define listFIRST_LIST_INTEGRITY_CHECK_VALUE TickType_t xListIntegrityValue1; #define listFIRST_LIST_INTEGRITY_CHECK_VALUE TickType_t xListIntegrityValue1;
#define listSECOND_LIST_INTEGRITY_CHECK_VALUE TickType_t xListIntegrityValue2; #define listSECOND_LIST_INTEGRITY_CHECK_VALUE TickType_t xListIntegrityValue2;
/* Define macros that set the new structure members to known values. */ /* Define macros that set the new structure members to known values. */
#define listSET_FIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE( pxItem ) ( pxItem )->xListItemIntegrityValue1 = pdINTEGRITY_CHECK_VALUE #define listSET_FIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE( pxItem ) ( pxItem )->xListItemIntegrityValue1 = pdINTEGRITY_CHECK_VALUE
#define listSET_SECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE( pxItem ) ( pxItem )->xListItemIntegrityValue2 = pdINTEGRITY_CHECK_VALUE #define listSET_SECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE( pxItem ) ( pxItem )->xListItemIntegrityValue2 = pdINTEGRITY_CHECK_VALUE
#define listSET_LIST_INTEGRITY_CHECK_1_VALUE( pxList ) ( pxList )->xListIntegrityValue1 = pdINTEGRITY_CHECK_VALUE #define listSET_LIST_INTEGRITY_CHECK_1_VALUE( pxList ) ( pxList )->xListIntegrityValue1 = pdINTEGRITY_CHECK_VALUE
#define listSET_LIST_INTEGRITY_CHECK_2_VALUE( pxList ) ( pxList )->xListIntegrityValue2 = pdINTEGRITY_CHECK_VALUE #define listSET_LIST_INTEGRITY_CHECK_2_VALUE( pxList ) ( pxList )->xListIntegrityValue2 = pdINTEGRITY_CHECK_VALUE
/* Define macros that will assert if one of the structure members does not /* Define macros that will assert if one of the structure members does not
* contain its expected value. */ * contain its expected value. */
#define listTEST_LIST_ITEM_INTEGRITY( pxItem ) configASSERT( ( ( pxItem )->xListItemIntegrityValue1 == pdINTEGRITY_CHECK_VALUE ) && ( ( pxItem )->xListItemIntegrityValue2 == pdINTEGRITY_CHECK_VALUE ) ) #define listTEST_LIST_ITEM_INTEGRITY( pxItem ) configASSERT( ( ( pxItem )->xListItemIntegrityValue1 == pdINTEGRITY_CHECK_VALUE ) && ( ( pxItem )->xListItemIntegrityValue2 == pdINTEGRITY_CHECK_VALUE ) )
#define listTEST_LIST_INTEGRITY( pxList ) configASSERT( ( ( pxList )->xListIntegrityValue1 == pdINTEGRITY_CHECK_VALUE ) && ( ( pxList )->xListIntegrityValue2 == pdINTEGRITY_CHECK_VALUE ) ) #define listTEST_LIST_INTEGRITY( pxList ) configASSERT( ( ( pxList )->xListIntegrityValue1 == pdINTEGRITY_CHECK_VALUE ) && ( ( pxList )->xListIntegrityValue2 == pdINTEGRITY_CHECK_VALUE ) )
#endif /* configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES */ #endif /* configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES */
/* /*
* Definition of the only type of object that a list can contain. * Definition of the only type of object that a list can contain.
*/ */
struct xLIST; struct xLIST;
struct xLIST_ITEM struct xLIST_ITEM
{ {
listFIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */ listFIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
configLIST_VOLATILE TickType_t xItemValue; /*< The value being listed. In most cases this is used to sort the list in descending order. */ configLIST_VOLATILE TickType_t xItemValue; /*< The value being listed. In most cases this is used to sort the list in descending order. */
struct xLIST_ITEM * configLIST_VOLATILE pxNext; /*< Pointer to the next ListItem_t in the list. */ struct xLIST_ITEM * configLIST_VOLATILE pxNext; /*< Pointer to the next ListItem_t in the list. */
struct xLIST_ITEM * configLIST_VOLATILE pxPrevious; /*< Pointer to the previous ListItem_t in the list. */ struct xLIST_ITEM * configLIST_VOLATILE pxPrevious; /*< Pointer to the previous ListItem_t in the list. */
void * pvOwner; /*< Pointer to the object (normally a TCB) that contains the list item. There is therefore a two way link between the object containing the list item and the list item itself. */ void * pvOwner; /*< Pointer to the object (normally a TCB) that contains the list item. There is therefore a two way link between the object containing the list item and the list item itself. */
struct xLIST * configLIST_VOLATILE pxContainer; /*< Pointer to the list in which this list item is placed (if any). */ struct xLIST * configLIST_VOLATILE pxContainer; /*< Pointer to the list in which this list item is placed (if any). */
listSECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */ listSECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
}; };
typedef struct xLIST_ITEM ListItem_t; /* For some reason lint wants this as two separate definitions. */ typedef struct xLIST_ITEM ListItem_t; /* For some reason lint wants this as two separate definitions. */
struct xMINI_LIST_ITEM struct xMINI_LIST_ITEM
{ {
listFIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */ listFIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
configLIST_VOLATILE TickType_t xItemValue; configLIST_VOLATILE TickType_t xItemValue;
struct xLIST_ITEM * configLIST_VOLATILE pxNext; struct xLIST_ITEM * configLIST_VOLATILE pxNext;
struct xLIST_ITEM * configLIST_VOLATILE pxPrevious; struct xLIST_ITEM * configLIST_VOLATILE pxPrevious;
}; };
typedef struct xMINI_LIST_ITEM MiniListItem_t; typedef struct xMINI_LIST_ITEM MiniListItem_t;
/* /*
* Definition of the type of queue used by the scheduler. * Definition of the type of queue used by the scheduler.
*/ */
typedef struct xLIST typedef struct xLIST
{ {
listFIRST_LIST_INTEGRITY_CHECK_VALUE /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */ listFIRST_LIST_INTEGRITY_CHECK_VALUE /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
volatile UBaseType_t uxNumberOfItems; volatile UBaseType_t uxNumberOfItems;
ListItem_t * configLIST_VOLATILE pxIndex; /*< Used to walk through the list. Points to the last item returned by a call to listGET_OWNER_OF_NEXT_ENTRY (). */ ListItem_t * configLIST_VOLATILE pxIndex; /*< Used to walk through the list. Points to the last item returned by a call to listGET_OWNER_OF_NEXT_ENTRY (). */
MiniListItem_t xListEnd; /*< List item that contains the maximum possible item value meaning it is always at the end of the list and is therefore used as a marker. */ MiniListItem_t xListEnd; /*< List item that contains the maximum possible item value meaning it is always at the end of the list and is therefore used as a marker. */
listSECOND_LIST_INTEGRITY_CHECK_VALUE /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */ listSECOND_LIST_INTEGRITY_CHECK_VALUE /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
} List_t; } List_t;
/* /*
* Access macro to set the owner of a list item. The owner of a list item * Access macro to set the owner of a list item. The owner of a list item
@ -177,7 +179,7 @@
* \page listSET_LIST_ITEM_OWNER listSET_LIST_ITEM_OWNER * \page listSET_LIST_ITEM_OWNER listSET_LIST_ITEM_OWNER
* \ingroup LinkedList * \ingroup LinkedList
*/ */
#define listSET_LIST_ITEM_OWNER( pxListItem, pxOwner ) ( ( pxListItem )->pvOwner = ( void * ) ( pxOwner ) ) #define listSET_LIST_ITEM_OWNER( pxListItem, pxOwner ) ( ( pxListItem )->pvOwner = ( void * ) ( pxOwner ) )
/* /*
* Access macro to get the owner of a list item. The owner of a list item * Access macro to get the owner of a list item. The owner of a list item
@ -186,7 +188,7 @@
* \page listGET_LIST_ITEM_OWNER listSET_LIST_ITEM_OWNER * \page listGET_LIST_ITEM_OWNER listSET_LIST_ITEM_OWNER
* \ingroup LinkedList * \ingroup LinkedList
*/ */
#define listGET_LIST_ITEM_OWNER( pxListItem ) ( ( pxListItem )->pvOwner ) #define listGET_LIST_ITEM_OWNER( pxListItem ) ( ( pxListItem )->pvOwner )
/* /*
* Access macro to set the value of the list item. In most cases the value is * Access macro to set the value of the list item. In most cases the value is
@ -195,7 +197,7 @@
* \page listSET_LIST_ITEM_VALUE listSET_LIST_ITEM_VALUE * \page listSET_LIST_ITEM_VALUE listSET_LIST_ITEM_VALUE
* \ingroup LinkedList * \ingroup LinkedList
*/ */
#define listSET_LIST_ITEM_VALUE( pxListItem, xValue ) ( ( pxListItem )->xItemValue = ( xValue ) ) #define listSET_LIST_ITEM_VALUE( pxListItem, xValue ) ( ( pxListItem )->xItemValue = ( xValue ) )
/* /*
* Access macro to retrieve the value of the list item. The value can * Access macro to retrieve the value of the list item. The value can
@ -205,7 +207,7 @@
* \page listGET_LIST_ITEM_VALUE listGET_LIST_ITEM_VALUE * \page listGET_LIST_ITEM_VALUE listGET_LIST_ITEM_VALUE
* \ingroup LinkedList * \ingroup LinkedList
*/ */
#define listGET_LIST_ITEM_VALUE( pxListItem ) ( ( pxListItem )->xItemValue ) #define listGET_LIST_ITEM_VALUE( pxListItem ) ( ( pxListItem )->xItemValue )
/* /*
* Access macro to retrieve the value of the list item at the head of a given * Access macro to retrieve the value of the list item at the head of a given
@ -214,7 +216,7 @@
* \page listGET_LIST_ITEM_VALUE listGET_LIST_ITEM_VALUE * \page listGET_LIST_ITEM_VALUE listGET_LIST_ITEM_VALUE
* \ingroup LinkedList * \ingroup LinkedList
*/ */
#define listGET_ITEM_VALUE_OF_HEAD_ENTRY( pxList ) ( ( ( pxList )->xListEnd ).pxNext->xItemValue ) #define listGET_ITEM_VALUE_OF_HEAD_ENTRY( pxList ) ( ( ( pxList )->xListEnd ).pxNext->xItemValue )
/* /*
* Return the list item at the head of the list. * Return the list item at the head of the list.
@ -222,7 +224,7 @@
* \page listGET_HEAD_ENTRY listGET_HEAD_ENTRY * \page listGET_HEAD_ENTRY listGET_HEAD_ENTRY
* \ingroup LinkedList * \ingroup LinkedList
*/ */
#define listGET_HEAD_ENTRY( pxList ) ( ( ( pxList )->xListEnd ).pxNext ) #define listGET_HEAD_ENTRY( pxList ) ( ( ( pxList )->xListEnd ).pxNext )
/* /*
* Return the next list item. * Return the next list item.
@ -230,7 +232,7 @@
* \page listGET_NEXT listGET_NEXT * \page listGET_NEXT listGET_NEXT
* \ingroup LinkedList * \ingroup LinkedList
*/ */
#define listGET_NEXT( pxListItem ) ( ( pxListItem )->pxNext ) #define listGET_NEXT( pxListItem ) ( ( pxListItem )->pxNext )
/* /*
* Return the list item that marks the end of the list * Return the list item that marks the end of the list
@ -238,7 +240,7 @@
* \page listGET_END_MARKER listGET_END_MARKER * \page listGET_END_MARKER listGET_END_MARKER
* \ingroup LinkedList * \ingroup LinkedList
*/ */
#define listGET_END_MARKER( pxList ) ( ( ListItem_t const * ) ( &( ( pxList )->xListEnd ) ) ) #define listGET_END_MARKER( pxList ) ( ( ListItem_t const * ) ( &( ( pxList )->xListEnd ) ) )
/* /*
* Access macro to determine if a list contains any items. The macro will * Access macro to determine if a list contains any items. The macro will
@ -247,12 +249,12 @@
* \page listLIST_IS_EMPTY listLIST_IS_EMPTY * \page listLIST_IS_EMPTY listLIST_IS_EMPTY
* \ingroup LinkedList * \ingroup LinkedList
*/ */
#define listLIST_IS_EMPTY( pxList ) ( ( ( pxList )->uxNumberOfItems == ( UBaseType_t ) 0 ) ? pdTRUE : pdFALSE ) #define listLIST_IS_EMPTY( pxList ) ( ( ( pxList )->uxNumberOfItems == ( UBaseType_t ) 0 ) ? pdTRUE : pdFALSE )
/* /*
* Access macro to return the number of items in the list. * Access macro to return the number of items in the list.
*/ */
#define listCURRENT_LIST_LENGTH( pxList ) ( ( pxList )->uxNumberOfItems ) #define listCURRENT_LIST_LENGTH( pxList ) ( ( pxList )->uxNumberOfItems )
/* /*
* Access function to obtain the owner of the next entry in a list. * Access function to obtain the owner of the next entry in a list.
@ -274,7 +276,7 @@
* \page listGET_OWNER_OF_NEXT_ENTRY listGET_OWNER_OF_NEXT_ENTRY * \page listGET_OWNER_OF_NEXT_ENTRY listGET_OWNER_OF_NEXT_ENTRY
* \ingroup LinkedList * \ingroup LinkedList
*/ */
#define listGET_OWNER_OF_NEXT_ENTRY( pxTCB, pxList ) \ #define listGET_OWNER_OF_NEXT_ENTRY( pxTCB, pxList ) \
{ \ { \
List_t * const pxConstList = ( pxList ); \ List_t * const pxConstList = ( pxList ); \
/* Increment the index to the next item and return the item, ensuring */ \ /* Increment the index to the next item and return the item, ensuring */ \
@ -304,7 +306,7 @@
* \page listGET_OWNER_OF_HEAD_ENTRY listGET_OWNER_OF_HEAD_ENTRY * \page listGET_OWNER_OF_HEAD_ENTRY listGET_OWNER_OF_HEAD_ENTRY
* \ingroup LinkedList * \ingroup LinkedList
*/ */
#define listGET_OWNER_OF_HEAD_ENTRY( pxList ) ( ( &( ( pxList )->xListEnd ) )->pxNext->pvOwner ) #define listGET_OWNER_OF_HEAD_ENTRY( pxList ) ( ( &( ( pxList )->xListEnd ) )->pxNext->pvOwner )
/* /*
* Check to see if a list item is within a list. The list item maintains a * Check to see if a list item is within a list. The list item maintains a
@ -315,7 +317,7 @@
* @param pxListItem The list item we want to know if is in the list. * @param pxListItem The list item we want to know if is in the list.
* @return pdTRUE if the list item is in the list, otherwise pdFALSE. * @return pdTRUE if the list item is in the list, otherwise pdFALSE.
*/ */
#define listIS_CONTAINED_WITHIN( pxList, pxListItem ) ( ( ( pxListItem )->pxContainer == ( pxList ) ) ? ( pdTRUE ) : ( pdFALSE ) ) #define listIS_CONTAINED_WITHIN( pxList, pxListItem ) ( ( ( pxListItem )->pxContainer == ( pxList ) ) ? ( pdTRUE ) : ( pdFALSE ) )
/* /*
* Return the list a list item is contained within (referenced from). * Return the list a list item is contained within (referenced from).
@ -323,14 +325,14 @@
* @param pxListItem The list item being queried. * @param pxListItem The list item being queried.
* @return A pointer to the List_t object that references the pxListItem * @return A pointer to the List_t object that references the pxListItem
*/ */
#define listLIST_ITEM_CONTAINER( pxListItem ) ( ( pxListItem )->pxContainer ) #define listLIST_ITEM_CONTAINER( pxListItem ) ( ( pxListItem )->pxContainer )
/* /*
* This provides a crude means of knowing if a list has been initialised, as * This provides a crude means of knowing if a list has been initialised, as
* pxList->xListEnd.xItemValue is set to portMAX_DELAY by the vListInitialise() * pxList->xListEnd.xItemValue is set to portMAX_DELAY by the vListInitialise()
* function. * function.
*/ */
#define listLIST_IS_INITIALISED( pxList ) ( ( pxList )->xListEnd.xItemValue == portMAX_DELAY ) #define listLIST_IS_INITIALISED( pxList ) ( ( pxList )->xListEnd.xItemValue == portMAX_DELAY )
/* /*
* Must be called before a list is used! This initialises all the members * Must be called before a list is used! This initialises all the members
@ -342,7 +344,7 @@
* \page vListInitialise vListInitialise * \page vListInitialise vListInitialise
* \ingroup LinkedList * \ingroup LinkedList
*/ */
void vListInitialise( List_t * const pxList ) PRIVILEGED_FUNCTION; void vListInitialise( List_t * const pxList ) PRIVILEGED_FUNCTION;
/* /*
* Must be called before a list item is used. This sets the list container to * Must be called before a list item is used. This sets the list container to
@ -353,7 +355,7 @@
* \page vListInitialiseItem vListInitialiseItem * \page vListInitialiseItem vListInitialiseItem
* \ingroup LinkedList * \ingroup LinkedList
*/ */
void vListInitialiseItem( ListItem_t * const pxItem ) PRIVILEGED_FUNCTION; void vListInitialiseItem( ListItem_t * const pxItem ) PRIVILEGED_FUNCTION;
/* /*
* Insert a list item into a list. The item will be inserted into the list in * Insert a list item into a list. The item will be inserted into the list in
@ -366,8 +368,8 @@
* \page vListInsert vListInsert * \page vListInsert vListInsert
* \ingroup LinkedList * \ingroup LinkedList
*/ */
void vListInsert( List_t * const pxList, void vListInsert( List_t * const pxList,
ListItem_t * const pxNewListItem ) PRIVILEGED_FUNCTION; ListItem_t * const pxNewListItem ) PRIVILEGED_FUNCTION;
/* /*
* Insert a list item into a list. The item will be inserted in a position * Insert a list item into a list. The item will be inserted in a position
@ -388,8 +390,8 @@
* \page vListInsertEnd vListInsertEnd * \page vListInsertEnd vListInsertEnd
* \ingroup LinkedList * \ingroup LinkedList
*/ */
void vListInsertEnd( List_t * const pxList, void vListInsertEnd( List_t * const pxList,
ListItem_t * const pxNewListItem ) PRIVILEGED_FUNCTION; ListItem_t * const pxNewListItem ) PRIVILEGED_FUNCTION;
/* /*
* Remove an item from a list. The list item has a pointer to the list that * Remove an item from a list. The list item has a pointer to the list that
@ -404,10 +406,12 @@
* \page uxListRemove uxListRemove * \page uxListRemove uxListRemove
* \ingroup LinkedList * \ingroup LinkedList
*/ */
UBaseType_t uxListRemove( ListItem_t * const pxItemToRemove ) PRIVILEGED_FUNCTION; UBaseType_t uxListRemove( ListItem_t * const pxItemToRemove ) PRIVILEGED_FUNCTION;
#ifdef __cplusplus /* *INDENT-OFF* */
} #ifdef __cplusplus
#endif }
#endif
/* *INDENT-ON* */
#endif /* ifndef LIST_H */ #endif /* ifndef LIST_H */

82
include/message_buffer.h
View file

@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
@ -60,18 +59,20 @@
*/ */
#ifndef FREERTOS_MESSAGE_BUFFER_H #ifndef FREERTOS_MESSAGE_BUFFER_H
#define FREERTOS_MESSAGE_BUFFER_H #define FREERTOS_MESSAGE_BUFFER_H
#ifndef INC_FREERTOS_H #ifndef INC_FREERTOS_H
#error "include FreeRTOS.h must appear in source files before include message_buffer.h" #error "include FreeRTOS.h must appear in source files before include message_buffer.h"
#endif #endif
/* Message buffers are built onto of stream buffers. */ /* Message buffers are built onto of stream buffers. */
#include "stream_buffer.h" #include "stream_buffer.h"
#if defined( __cplusplus ) /* *INDENT-OFF* */
extern "C" { #if defined( __cplusplus )
#endif extern "C" {
#endif
/* *INDENT-ON* */
/** /**
* Type by which message buffers are referenced. For example, a call to * Type by which message buffers are referenced. For example, a call to
@ -79,7 +80,7 @@
* then be used as a parameter to xMessageBufferSend(), xMessageBufferReceive(), * then be used as a parameter to xMessageBufferSend(), xMessageBufferReceive(),
* etc. * etc.
*/ */
typedef void * MessageBufferHandle_t; typedef void * MessageBufferHandle_t;
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -139,7 +140,8 @@
* \defgroup xMessageBufferCreate xMessageBufferCreate * \defgroup xMessageBufferCreate xMessageBufferCreate
* \ingroup MessageBufferManagement * \ingroup MessageBufferManagement
*/ */
#define xMessageBufferCreate( xBufferSizeBytes ) ( MessageBufferHandle_t ) xStreamBufferGenericCreate( xBufferSizeBytes, ( size_t ) 0, pdTRUE ) #define xMessageBufferCreate( xBufferSizeBytes ) \
( MessageBufferHandle_t ) xStreamBufferGenericCreate( xBufferSizeBytes, ( size_t ) 0, pdTRUE )
/** /**
* message_buffer.h * message_buffer.h
@ -205,7 +207,8 @@
* \defgroup xMessageBufferCreateStatic xMessageBufferCreateStatic * \defgroup xMessageBufferCreateStatic xMessageBufferCreateStatic
* \ingroup MessageBufferManagement * \ingroup MessageBufferManagement
*/ */
#define xMessageBufferCreateStatic( xBufferSizeBytes, pucMessageBufferStorageArea, pxStaticMessageBuffer ) ( MessageBufferHandle_t ) xStreamBufferGenericCreateStatic( xBufferSizeBytes, 0, pdTRUE, pucMessageBufferStorageArea, pxStaticMessageBuffer ) #define xMessageBufferCreateStatic( xBufferSizeBytes, pucMessageBufferStorageArea, pxStaticMessageBuffer ) \
( MessageBufferHandle_t ) xStreamBufferGenericCreateStatic( xBufferSizeBytes, 0, pdTRUE, pucMessageBufferStorageArea, pxStaticMessageBuffer )
/** /**
* message_buffer.h * message_buffer.h
@ -215,7 +218,7 @@
* const void *pvTxData, * const void *pvTxData,
* size_t xDataLengthBytes, * size_t xDataLengthBytes,
* TickType_t xTicksToWait ); * TickType_t xTicksToWait );
* <pre> * </pre>
* *
* Sends a discrete message to the message buffer. The message can be any * Sends a discrete message to the message buffer. The message can be any
* length that fits within the buffer's free space, and is copied into the * length that fits within the buffer's free space, and is copied into the
@ -304,7 +307,8 @@
* \defgroup xMessageBufferSend xMessageBufferSend * \defgroup xMessageBufferSend xMessageBufferSend
* \ingroup MessageBufferManagement * \ingroup MessageBufferManagement
*/ */
#define xMessageBufferSend( xMessageBuffer, pvTxData, xDataLengthBytes, xTicksToWait ) xStreamBufferSend( ( StreamBufferHandle_t ) xMessageBuffer, pvTxData, xDataLengthBytes, xTicksToWait ) #define xMessageBufferSend( xMessageBuffer, pvTxData, xDataLengthBytes, xTicksToWait ) \
xStreamBufferSend( ( StreamBufferHandle_t ) xMessageBuffer, pvTxData, xDataLengthBytes, xTicksToWait )
/** /**
* message_buffer.h * message_buffer.h
@ -314,7 +318,7 @@
* const void *pvTxData, * const void *pvTxData,
* size_t xDataLengthBytes, * size_t xDataLengthBytes,
* BaseType_t *pxHigherPriorityTaskWoken ); * BaseType_t *pxHigherPriorityTaskWoken );
* <pre> * </pre>
* *
* Interrupt safe version of the API function that sends a discrete message to * Interrupt safe version of the API function that sends a discrete message to
* the message buffer. The message can be any length that fits within the * the message buffer. The message can be any length that fits within the
@ -408,7 +412,8 @@
* \defgroup xMessageBufferSendFromISR xMessageBufferSendFromISR * \defgroup xMessageBufferSendFromISR xMessageBufferSendFromISR
* \ingroup MessageBufferManagement * \ingroup MessageBufferManagement
*/ */
#define xMessageBufferSendFromISR( xMessageBuffer, pvTxData, xDataLengthBytes, pxHigherPriorityTaskWoken ) xStreamBufferSendFromISR( ( StreamBufferHandle_t ) xMessageBuffer, pvTxData, xDataLengthBytes, pxHigherPriorityTaskWoken ) #define xMessageBufferSendFromISR( xMessageBuffer, pvTxData, xDataLengthBytes, pxHigherPriorityTaskWoken ) \
xStreamBufferSendFromISR( ( StreamBufferHandle_t ) xMessageBuffer, pvTxData, xDataLengthBytes, pxHigherPriorityTaskWoken )
/** /**
* message_buffer.h * message_buffer.h
@ -496,7 +501,8 @@
* \defgroup xMessageBufferReceive xMessageBufferReceive * \defgroup xMessageBufferReceive xMessageBufferReceive
* \ingroup MessageBufferManagement * \ingroup MessageBufferManagement
*/ */
#define xMessageBufferReceive( xMessageBuffer, pvRxData, xBufferLengthBytes, xTicksToWait ) xStreamBufferReceive( ( StreamBufferHandle_t ) xMessageBuffer, pvRxData, xBufferLengthBytes, xTicksToWait ) #define xMessageBufferReceive( xMessageBuffer, pvRxData, xBufferLengthBytes, xTicksToWait ) \
xStreamBufferReceive( ( StreamBufferHandle_t ) xMessageBuffer, pvRxData, xBufferLengthBytes, xTicksToWait )
/** /**
@ -597,7 +603,8 @@
* \defgroup xMessageBufferReceiveFromISR xMessageBufferReceiveFromISR * \defgroup xMessageBufferReceiveFromISR xMessageBufferReceiveFromISR
* \ingroup MessageBufferManagement * \ingroup MessageBufferManagement
*/ */
#define xMessageBufferReceiveFromISR( xMessageBuffer, pvRxData, xBufferLengthBytes, pxHigherPriorityTaskWoken ) xStreamBufferReceiveFromISR( ( StreamBufferHandle_t ) xMessageBuffer, pvRxData, xBufferLengthBytes, pxHigherPriorityTaskWoken ) #define xMessageBufferReceiveFromISR( xMessageBuffer, pvRxData, xBufferLengthBytes, pxHigherPriorityTaskWoken ) \
xStreamBufferReceiveFromISR( ( StreamBufferHandle_t ) xMessageBuffer, pvRxData, xBufferLengthBytes, pxHigherPriorityTaskWoken )
/** /**
* message_buffer.h * message_buffer.h
@ -617,7 +624,8 @@
* @param xMessageBuffer The handle of the message buffer to be deleted. * @param xMessageBuffer The handle of the message buffer to be deleted.
* *
*/ */
#define vMessageBufferDelete( xMessageBuffer ) vStreamBufferDelete( ( StreamBufferHandle_t ) xMessageBuffer ) #define vMessageBufferDelete( xMessageBuffer ) \
vStreamBufferDelete( ( StreamBufferHandle_t ) xMessageBuffer )
/** /**
* message_buffer.h * message_buffer.h
@ -634,7 +642,8 @@
* @return If the message buffer referenced by xMessageBuffer is full then * @return If the message buffer referenced by xMessageBuffer is full then
* pdTRUE is returned. Otherwise pdFALSE is returned. * pdTRUE is returned. Otherwise pdFALSE is returned.
*/ */
#define xMessageBufferIsFull( xMessageBuffer ) xStreamBufferIsFull( ( StreamBufferHandle_t ) xMessageBuffer ) #define xMessageBufferIsFull( xMessageBuffer ) \
xStreamBufferIsFull( ( StreamBufferHandle_t ) xMessageBuffer )
/** /**
* message_buffer.h * message_buffer.h
@ -650,7 +659,8 @@
* pdTRUE is returned. Otherwise pdFALSE is returned. * pdTRUE is returned. Otherwise pdFALSE is returned.
* *
*/ */
#define xMessageBufferIsEmpty( xMessageBuffer ) xStreamBufferIsEmpty( ( StreamBufferHandle_t ) xMessageBuffer ) #define xMessageBufferIsEmpty( xMessageBuffer ) \
xStreamBufferIsEmpty( ( StreamBufferHandle_t ) xMessageBuffer )
/** /**
* message_buffer.h * message_buffer.h
@ -673,7 +683,8 @@
* \defgroup xMessageBufferReset xMessageBufferReset * \defgroup xMessageBufferReset xMessageBufferReset
* \ingroup MessageBufferManagement * \ingroup MessageBufferManagement
*/ */
#define xMessageBufferReset( xMessageBuffer ) xStreamBufferReset( ( StreamBufferHandle_t ) xMessageBuffer ) #define xMessageBufferReset( xMessageBuffer ) \
xStreamBufferReset( ( StreamBufferHandle_t ) xMessageBuffer )
/** /**
@ -695,8 +706,10 @@
* \defgroup xMessageBufferSpaceAvailable xMessageBufferSpaceAvailable * \defgroup xMessageBufferSpaceAvailable xMessageBufferSpaceAvailable
* \ingroup MessageBufferManagement * \ingroup MessageBufferManagement
*/ */
#define xMessageBufferSpaceAvailable( xMessageBuffer ) xStreamBufferSpacesAvailable( ( StreamBufferHandle_t ) xMessageBuffer ) #define xMessageBufferSpaceAvailable( xMessageBuffer ) \
#define xMessageBufferSpacesAvailable( xMessageBuffer ) xStreamBufferSpacesAvailable( ( StreamBufferHandle_t ) xMessageBuffer ) /* Corrects typo in original macro name. */ xStreamBufferSpacesAvailable( ( StreamBufferHandle_t ) xMessageBuffer )
#define xMessageBufferSpacesAvailable( xMessageBuffer ) \
xStreamBufferSpacesAvailable( ( StreamBufferHandle_t ) xMessageBuffer ) /* Corrects typo in original macro name. */
/** /**
* message_buffer.h * message_buffer.h
@ -715,7 +728,8 @@
* \defgroup xMessageBufferNextLengthBytes xMessageBufferNextLengthBytes * \defgroup xMessageBufferNextLengthBytes xMessageBufferNextLengthBytes
* \ingroup MessageBufferManagement * \ingroup MessageBufferManagement
*/ */
#define xMessageBufferNextLengthBytes( xMessageBuffer ) xStreamBufferNextMessageLengthBytes( ( StreamBufferHandle_t ) xMessageBuffer ) PRIVILEGED_FUNCTION; #define xMessageBufferNextLengthBytes( xMessageBuffer ) \
xStreamBufferNextMessageLengthBytes( ( StreamBufferHandle_t ) xMessageBuffer ) PRIVILEGED_FUNCTION;
/** /**
* message_buffer.h * message_buffer.h
@ -754,7 +768,8 @@
* \defgroup xMessageBufferSendCompletedFromISR xMessageBufferSendCompletedFromISR * \defgroup xMessageBufferSendCompletedFromISR xMessageBufferSendCompletedFromISR
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
#define xMessageBufferSendCompletedFromISR( xMessageBuffer, pxHigherPriorityTaskWoken ) xStreamBufferSendCompletedFromISR( ( StreamBufferHandle_t ) xMessageBuffer, pxHigherPriorityTaskWoken ) #define xMessageBufferSendCompletedFromISR( xMessageBuffer, pxHigherPriorityTaskWoken ) \
xStreamBufferSendCompletedFromISR( ( StreamBufferHandle_t ) xMessageBuffer, pxHigherPriorityTaskWoken )
/** /**
* message_buffer.h * message_buffer.h
@ -794,10 +809,13 @@
* \defgroup xMessageBufferReceiveCompletedFromISR xMessageBufferReceiveCompletedFromISR * \defgroup xMessageBufferReceiveCompletedFromISR xMessageBufferReceiveCompletedFromISR
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
#define xMessageBufferReceiveCompletedFromISR( xMessageBuffer, pxHigherPriorityTaskWoken ) xStreamBufferReceiveCompletedFromISR( ( StreamBufferHandle_t ) xMessageBuffer, pxHigherPriorityTaskWoken ) #define xMessageBufferReceiveCompletedFromISR( xMessageBuffer, pxHigherPriorityTaskWoken ) \
xStreamBufferReceiveCompletedFromISR( ( StreamBufferHandle_t ) xMessageBuffer, pxHigherPriorityTaskWoken )
#if defined( __cplusplus ) /* *INDENT-OFF* */
} /* extern "C" */ #if defined( __cplusplus )
#endif } /* extern "C" */
#endif
/* *INDENT-ON* */
#endif /* !defined( FREERTOS_MESSAGE_BUFFER_H ) */ #endif /* !defined( FREERTOS_MESSAGE_BUFFER_H ) */

5
include/mpu_prototypes.h
View file

@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
/* /*

5
include/mpu_wrappers.h
View file

@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
#ifndef MPU_WRAPPERS_H #ifndef MPU_WRAPPERS_H

205
include/portable.h
View file

@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
/*----------------------------------------------------------- /*-----------------------------------------------------------
@ -30,7 +29,7 @@
*----------------------------------------------------------*/ *----------------------------------------------------------*/
#ifndef PORTABLE_H #ifndef PORTABLE_H
#define PORTABLE_H #define PORTABLE_H
/* Each FreeRTOS port has a unique portmacro.h header file. Originally a /* Each FreeRTOS port has a unique portmacro.h header file. Originally a
* pre-processor definition was used to ensure the pre-processor found the correct * pre-processor definition was used to ensure the pre-processor found the correct
@ -42,61 +41,63 @@
* to make it clear that new projects should not use it, support for the port * to make it clear that new projects should not use it, support for the port
* specific constants has been moved into the deprecated_definitions.h header * specific constants has been moved into the deprecated_definitions.h header
* file. */ * file. */
#include "deprecated_definitions.h" #include "deprecated_definitions.h"
/* If portENTER_CRITICAL is not defined then including deprecated_definitions.h /* If portENTER_CRITICAL is not defined then including deprecated_definitions.h
* did not result in a portmacro.h header file being included - and it should be * did not result in a portmacro.h header file being included - and it should be
* included here. In this case the path to the correct portmacro.h header file * included here. In this case the path to the correct portmacro.h header file
* must be set in the compiler's include path. */ * must be set in the compiler's include path. */
#ifndef portENTER_CRITICAL #ifndef portENTER_CRITICAL
#include "portmacro.h" #include "portmacro.h"
#endif #endif
#if portBYTE_ALIGNMENT == 32 #if portBYTE_ALIGNMENT == 32
#define portBYTE_ALIGNMENT_MASK ( 0x001f ) #define portBYTE_ALIGNMENT_MASK ( 0x001f )
#endif #endif
#if portBYTE_ALIGNMENT == 16 #if portBYTE_ALIGNMENT == 16
#define portBYTE_ALIGNMENT_MASK ( 0x000f ) #define portBYTE_ALIGNMENT_MASK ( 0x000f )
#endif #endif
#if portBYTE_ALIGNMENT == 8 #if portBYTE_ALIGNMENT == 8
#define portBYTE_ALIGNMENT_MASK ( 0x0007 ) #define portBYTE_ALIGNMENT_MASK ( 0x0007 )
#endif #endif
#if portBYTE_ALIGNMENT == 4 #if portBYTE_ALIGNMENT == 4
#define portBYTE_ALIGNMENT_MASK ( 0x0003 ) #define portBYTE_ALIGNMENT_MASK ( 0x0003 )
#endif #endif
#if portBYTE_ALIGNMENT == 2 #if portBYTE_ALIGNMENT == 2
#define portBYTE_ALIGNMENT_MASK ( 0x0001 ) #define portBYTE_ALIGNMENT_MASK ( 0x0001 )
#endif #endif
#if portBYTE_ALIGNMENT == 1 #if portBYTE_ALIGNMENT == 1
#define portBYTE_ALIGNMENT_MASK ( 0x0000 ) #define portBYTE_ALIGNMENT_MASK ( 0x0000 )
#endif #endif
#ifndef portBYTE_ALIGNMENT_MASK #ifndef portBYTE_ALIGNMENT_MASK
#error "Invalid portBYTE_ALIGNMENT definition" #error "Invalid portBYTE_ALIGNMENT definition"
#endif #endif
#ifndef portNUM_CONFIGURABLE_REGIONS #ifndef portNUM_CONFIGURABLE_REGIONS
#define portNUM_CONFIGURABLE_REGIONS 1 #define portNUM_CONFIGURABLE_REGIONS 1
#endif #endif
#ifndef portHAS_STACK_OVERFLOW_CHECKING #ifndef portHAS_STACK_OVERFLOW_CHECKING
#define portHAS_STACK_OVERFLOW_CHECKING 0 #define portHAS_STACK_OVERFLOW_CHECKING 0
#endif #endif
#ifndef portARCH_NAME #ifndef portARCH_NAME
#define portARCH_NAME NULL #define portARCH_NAME NULL
#endif #endif
#ifdef __cplusplus /* *INDENT-OFF* */
extern "C" { #ifdef __cplusplus
#endif extern "C" {
#endif
/* *INDENT-ON* */
#include "mpu_wrappers.h" #include "mpu_wrappers.h"
/* /*
* Setup the stack of a new task so it is ready to be placed under the * Setup the stack of a new task so it is ready to be placed under the
@ -104,51 +105,51 @@
* the order that the port expects to find them. * the order that the port expects to find them.
* *
*/ */
#if ( portUSING_MPU_WRAPPERS == 1 ) #if ( portUSING_MPU_WRAPPERS == 1 )
#if ( portHAS_STACK_OVERFLOW_CHECKING == 1 ) #if ( portHAS_STACK_OVERFLOW_CHECKING == 1 )
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
StackType_t * pxEndOfStack, StackType_t * pxEndOfStack,
TaskFunction_t pxCode, TaskFunction_t pxCode,
void * pvParameters, void * pvParameters,
BaseType_t xRunPrivileged ) PRIVILEGED_FUNCTION; BaseType_t xRunPrivileged ) PRIVILEGED_FUNCTION;
#else #else
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
TaskFunction_t pxCode, TaskFunction_t pxCode,
void * pvParameters, void * pvParameters,
BaseType_t xRunPrivileged ) PRIVILEGED_FUNCTION; BaseType_t xRunPrivileged ) PRIVILEGED_FUNCTION;
#endif #endif
#else /* if ( portUSING_MPU_WRAPPERS == 1 ) */ #else /* if ( portUSING_MPU_WRAPPERS == 1 ) */
#if ( portHAS_STACK_OVERFLOW_CHECKING == 1 ) #if ( portHAS_STACK_OVERFLOW_CHECKING == 1 )
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
StackType_t * pxEndOfStack, StackType_t * pxEndOfStack,
TaskFunction_t pxCode, TaskFunction_t pxCode,
void * pvParameters ) PRIVILEGED_FUNCTION; void * pvParameters ) PRIVILEGED_FUNCTION;
#else #else
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
TaskFunction_t pxCode, TaskFunction_t pxCode,
void * pvParameters ) PRIVILEGED_FUNCTION; void * pvParameters ) PRIVILEGED_FUNCTION;
#endif #endif
#endif /* if ( portUSING_MPU_WRAPPERS == 1 ) */ #endif /* if ( portUSING_MPU_WRAPPERS == 1 ) */
/* Used by heap_5.c to define the start address and size of each memory region /* Used by heap_5.c to define the start address and size of each memory region
* that together comprise the total FreeRTOS heap space. */ * that together comprise the total FreeRTOS heap space. */
typedef struct HeapRegion typedef struct HeapRegion
{ {
uint8_t * pucStartAddress; uint8_t * pucStartAddress;
size_t xSizeInBytes; size_t xSizeInBytes;
} HeapRegion_t; } HeapRegion_t;
/* Used to pass information about the heap out of vPortGetHeapStats(). */ /* Used to pass information about the heap out of vPortGetHeapStats(). */
typedef struct xHeapStats typedef struct xHeapStats
{ {
size_t xAvailableHeapSpaceInBytes; /* The total heap size currently available - this is the sum of all the free blocks, not the largest block that can be allocated. */ size_t xAvailableHeapSpaceInBytes; /* The total heap size currently available - this is the sum of all the free blocks, not the largest block that can be allocated. */
size_t xSizeOfLargestFreeBlockInBytes; /* The maximum size, in bytes, of all the free blocks within the heap at the time vPortGetHeapStats() is called. */ size_t xSizeOfLargestFreeBlockInBytes; /* The maximum size, in bytes, of all the free blocks within the heap at the time vPortGetHeapStats() is called. */
size_t xSizeOfSmallestFreeBlockInBytes; /* The minimum size, in bytes, of all the free blocks within the heap at the time vPortGetHeapStats() is called. */ size_t xSizeOfSmallestFreeBlockInBytes; /* The minimum size, in bytes, of all the free blocks within the heap at the time vPortGetHeapStats() is called. */
size_t xNumberOfFreeBlocks; /* The number of free memory blocks within the heap at the time vPortGetHeapStats() is called. */ size_t xNumberOfFreeBlocks; /* The number of free memory blocks within the heap at the time vPortGetHeapStats() is called. */
size_t xMinimumEverFreeBytesRemaining; /* The minimum amount of total free memory (sum of all free blocks) there has been in the heap since the system booted. */ size_t xMinimumEverFreeBytesRemaining; /* The minimum amount of total free memory (sum of all free blocks) there has been in the heap since the system booted. */
size_t xNumberOfSuccessfulAllocations; /* The number of calls to pvPortMalloc() that have returned a valid memory block. */ size_t xNumberOfSuccessfulAllocations; /* The number of calls to pvPortMalloc() that have returned a valid memory block. */
size_t xNumberOfSuccessfulFrees; /* The number of calls to vPortFree() that has successfully freed a block of memory. */ size_t xNumberOfSuccessfulFrees; /* The number of calls to vPortFree() that has successfully freed a block of memory. */
} HeapStats_t; } HeapStats_t;
/* /*
* Used to define multiple heap regions for use by heap_5.c. This function * Used to define multiple heap regions for use by heap_5.c. This function
@ -161,35 +162,35 @@
* terminated by a HeapRegions_t structure that has a size of 0. The region * terminated by a HeapRegions_t structure that has a size of 0. The region
* with the lowest start address must appear first in the array. * with the lowest start address must appear first in the array.
*/ */
void vPortDefineHeapRegions( const HeapRegion_t * const pxHeapRegions ) PRIVILEGED_FUNCTION; void vPortDefineHeapRegions( const HeapRegion_t * const pxHeapRegions ) PRIVILEGED_FUNCTION;
/* /*
* Returns a HeapStats_t structure filled with information about the current * Returns a HeapStats_t structure filled with information about the current
* heap state. * heap state.
*/ */
void vPortGetHeapStats( HeapStats_t * pxHeapStats ); void vPortGetHeapStats( HeapStats_t * pxHeapStats );
/* /*
* Map to the memory management routines required for the port. * Map to the memory management routines required for the port.
*/ */
void * pvPortMalloc( size_t xSize ) PRIVILEGED_FUNCTION; void * pvPortMalloc( size_t xSize ) PRIVILEGED_FUNCTION;
void vPortFree( void * pv ) PRIVILEGED_FUNCTION; void vPortFree( void * pv ) PRIVILEGED_FUNCTION;
void vPortInitialiseBlocks( void ) PRIVILEGED_FUNCTION; void vPortInitialiseBlocks( void ) PRIVILEGED_FUNCTION;
size_t xPortGetFreeHeapSize( void ) PRIVILEGED_FUNCTION; size_t xPortGetFreeHeapSize( void ) PRIVILEGED_FUNCTION;
size_t xPortGetMinimumEverFreeHeapSize( void ) PRIVILEGED_FUNCTION; size_t xPortGetMinimumEverFreeHeapSize( void ) PRIVILEGED_FUNCTION;
/* /*
* Setup the hardware ready for the scheduler to take control. This generally * Setup the hardware ready for the scheduler to take control. This generally
* sets up a tick interrupt and sets timers for the correct tick frequency. * sets up a tick interrupt and sets timers for the correct tick frequency.
*/ */
BaseType_t xPortStartScheduler( void ) PRIVILEGED_FUNCTION; BaseType_t xPortStartScheduler( void ) PRIVILEGED_FUNCTION;
/* /*
* Undo any hardware/ISR setup that was performed by xPortStartScheduler() so * Undo any hardware/ISR setup that was performed by xPortStartScheduler() so
* the hardware is left in its original condition after the scheduler stops * the hardware is left in its original condition after the scheduler stops
* executing. * executing.
*/ */
void vPortEndScheduler( void ) PRIVILEGED_FUNCTION; void vPortEndScheduler( void ) PRIVILEGED_FUNCTION;
/* /*
* The structures and methods of manipulating the MPU are contained within the * The structures and methods of manipulating the MPU are contained within the
@ -198,16 +199,18 @@
* Fills the xMPUSettings structure with the memory region information * Fills the xMPUSettings structure with the memory region information
* contained in xRegions. * contained in xRegions.
*/ */
#if ( portUSING_MPU_WRAPPERS == 1 ) #if ( portUSING_MPU_WRAPPERS == 1 )
struct xMEMORY_REGION; struct xMEMORY_REGION;
void vPortStoreTaskMPUSettings( xMPU_SETTINGS * xMPUSettings, void vPortStoreTaskMPUSettings( xMPU_SETTINGS * xMPUSettings,
const struct xMEMORY_REGION * const xRegions, const struct xMEMORY_REGION * const xRegions,
StackType_t * pxBottomOfStack, StackType_t * pxBottomOfStack,
uint32_t ulStackDepth ) PRIVILEGED_FUNCTION; uint32_t ulStackDepth ) PRIVILEGED_FUNCTION;
#endif #endif
#ifdef __cplusplus /* *INDENT-OFF* */
} #ifdef __cplusplus
#endif }
#endif
/* *INDENT-ON* */
#endif /* PORTABLE_H */ #endif /* PORTABLE_H */

5
include/projdefs.h
View file

@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
#ifndef PROJDEFS_H #ifndef PROJDEFS_H

338
include/queue.h
View file

@ -19,60 +19,61 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
#ifndef QUEUE_H #ifndef QUEUE_H
#define QUEUE_H #define QUEUE_H
#ifndef INC_FREERTOS_H #ifndef INC_FREERTOS_H
#error "include FreeRTOS.h" must appear in source files before "include queue.h" #error "include FreeRTOS.h" must appear in source files before "include queue.h"
#endif #endif
#ifdef __cplusplus /* *INDENT-OFF* */
extern "C" { #ifdef __cplusplus
#endif extern "C" {
#endif
/* *INDENT-ON* */
#include "task.h" #include "task.h"
/** /**
* Type by which queues are referenced. For example, a call to xQueueCreate() * Type by which queues are referenced. For example, a call to xQueueCreate()
* returns an QueueHandle_t variable that can then be used as a parameter to * returns an QueueHandle_t variable that can then be used as a parameter to
* xQueueSend(), xQueueReceive(), etc. * xQueueSend(), xQueueReceive(), etc.
*/ */
struct QueueDefinition; /* Using old naming convention so as not to break kernel aware debuggers. */ struct QueueDefinition; /* Using old naming convention so as not to break kernel aware debuggers. */
typedef struct QueueDefinition * QueueHandle_t; typedef struct QueueDefinition * QueueHandle_t;
/** /**
* Type by which queue sets are referenced. For example, a call to * Type by which queue sets are referenced. For example, a call to
* xQueueCreateSet() returns an xQueueSet variable that can then be used as a * xQueueCreateSet() returns an xQueueSet variable that can then be used as a
* parameter to xQueueSelectFromSet(), xQueueAddToSet(), etc. * parameter to xQueueSelectFromSet(), xQueueAddToSet(), etc.
*/ */
typedef struct QueueDefinition * QueueSetHandle_t; typedef struct QueueDefinition * QueueSetHandle_t;
/** /**
* Queue sets can contain both queues and semaphores, so the * Queue sets can contain both queues and semaphores, so the
* QueueSetMemberHandle_t is defined as a type to be used where a parameter or * QueueSetMemberHandle_t is defined as a type to be used where a parameter or
* return value can be either an QueueHandle_t or an SemaphoreHandle_t. * return value can be either an QueueHandle_t or an SemaphoreHandle_t.
*/ */
typedef struct QueueDefinition * QueueSetMemberHandle_t; typedef struct QueueDefinition * QueueSetMemberHandle_t;
/* For internal use only. */ /* For internal use only. */
#define queueSEND_TO_BACK ( ( BaseType_t ) 0 ) #define queueSEND_TO_BACK ( ( BaseType_t ) 0 )
#define queueSEND_TO_FRONT ( ( BaseType_t ) 1 ) #define queueSEND_TO_FRONT ( ( BaseType_t ) 1 )
#define queueOVERWRITE ( ( BaseType_t ) 2 ) #define queueOVERWRITE ( ( BaseType_t ) 2 )
/* For internal use only. These definitions *must* match those in queue.c. */ /* For internal use only. These definitions *must* match those in queue.c. */
#define queueQUEUE_TYPE_BASE ( ( uint8_t ) 0U ) #define queueQUEUE_TYPE_BASE ( ( uint8_t ) 0U )
#define queueQUEUE_TYPE_SET ( ( uint8_t ) 0U ) #define queueQUEUE_TYPE_SET ( ( uint8_t ) 0U )
#define queueQUEUE_TYPE_MUTEX ( ( uint8_t ) 1U ) #define queueQUEUE_TYPE_MUTEX ( ( uint8_t ) 1U )
#define queueQUEUE_TYPE_COUNTING_SEMAPHORE ( ( uint8_t ) 2U ) #define queueQUEUE_TYPE_COUNTING_SEMAPHORE ( ( uint8_t ) 2U )
#define queueQUEUE_TYPE_BINARY_SEMAPHORE ( ( uint8_t ) 3U ) #define queueQUEUE_TYPE_BINARY_SEMAPHORE ( ( uint8_t ) 3U )
#define queueQUEUE_TYPE_RECURSIVE_MUTEX ( ( uint8_t ) 4U ) #define queueQUEUE_TYPE_RECURSIVE_MUTEX ( ( uint8_t ) 4U )
/** /**
* queue. h * queue. h
@ -96,7 +97,7 @@
* will get used by the queue. xQueueCreateStatic() therefore allows a queue to * will get used by the queue. xQueueCreateStatic() therefore allows a queue to
* be created without using any dynamic memory allocation. * be created without using any dynamic memory allocation.
* *
* http://www.FreeRTOS.org/Embedded-RTOS-Queues.html * https://www.FreeRTOS.org/Embedded-RTOS-Queues.html
* *
* @param uxQueueLength The maximum number of items that the queue can contain. * @param uxQueueLength The maximum number of items that the queue can contain.
* *
@ -142,9 +143,9 @@
* \defgroup xQueueCreate xQueueCreate * \defgroup xQueueCreate xQueueCreate
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
#if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) #if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
#define xQueueCreate( uxQueueLength, uxItemSize ) xQueueGenericCreate( ( uxQueueLength ), ( uxItemSize ), ( queueQUEUE_TYPE_BASE ) ) #define xQueueCreate( uxQueueLength, uxItemSize ) xQueueGenericCreate( ( uxQueueLength ), ( uxItemSize ), ( queueQUEUE_TYPE_BASE ) )
#endif #endif
/** /**
* queue. h * queue. h
@ -170,7 +171,7 @@
* will get used by the queue. xQueueCreateStatic() therefore allows a queue to * will get used by the queue. xQueueCreateStatic() therefore allows a queue to
* be created without using any dynamic memory allocation. * be created without using any dynamic memory allocation.
* *
* http://www.FreeRTOS.org/Embedded-RTOS-Queues.html * https://www.FreeRTOS.org/Embedded-RTOS-Queues.html
* *
* @param uxQueueLength The maximum number of items that the queue can contain. * @param uxQueueLength The maximum number of items that the queue can contain.
* *
@ -215,7 +216,7 @@
* *
* // Create a queue capable of containing 10 uint32_t values. * // Create a queue capable of containing 10 uint32_t values.
* xQueue1 = xQueueCreate( QUEUE_LENGTH, // The number of items the queue can hold. * xQueue1 = xQueueCreate( QUEUE_LENGTH, // The number of items the queue can hold.
* ITEM_SIZE // The size of each item in the queue * ITEM_SIZE // The size of each item in the queue
* &( ucQueueStorage[ 0 ] ), // The buffer that will hold the items in the queue. * &( ucQueueStorage[ 0 ] ), // The buffer that will hold the items in the queue.
* &xQueueBuffer ); // The buffer that will hold the queue structure. * &xQueueBuffer ); // The buffer that will hold the queue structure.
* *
@ -228,17 +229,17 @@
* \defgroup xQueueCreateStatic xQueueCreateStatic * \defgroup xQueueCreateStatic xQueueCreateStatic
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
#if ( configSUPPORT_STATIC_ALLOCATION == 1 ) #if ( configSUPPORT_STATIC_ALLOCATION == 1 )
#define xQueueCreateStatic( uxQueueLength, uxItemSize, pucQueueStorage, pxQueueBuffer ) xQueueGenericCreateStatic( ( uxQueueLength ), ( uxItemSize ), ( pucQueueStorage ), ( pxQueueBuffer ), ( queueQUEUE_TYPE_BASE ) ) #define xQueueCreateStatic( uxQueueLength, uxItemSize, pucQueueStorage, pxQueueBuffer ) xQueueGenericCreateStatic( ( uxQueueLength ), ( uxItemSize ), ( pucQueueStorage ), ( pxQueueBuffer ), ( queueQUEUE_TYPE_BASE ) )
#endif /* configSUPPORT_STATIC_ALLOCATION */ #endif /* configSUPPORT_STATIC_ALLOCATION */
/** /**
* queue. h * queue. h
* <pre> * <pre>
* BaseType_t xQueueSendToToFront( * BaseType_t xQueueSendToToFront(
* QueueHandle_t xQueue, * QueueHandle_t xQueue,
* const void *pvItemToQueue, * const void *pvItemToQueue,
* TickType_t xTicksToWait * TickType_t xTicksToWait
* ); * );
* </pre> * </pre>
* *
@ -310,15 +311,16 @@
* \defgroup xQueueSend xQueueSend * \defgroup xQueueSend xQueueSend
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
#define xQueueSendToFront( xQueue, pvItemToQueue, xTicksToWait ) xQueueGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_FRONT ) #define xQueueSendToFront( xQueue, pvItemToQueue, xTicksToWait ) \
xQueueGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_FRONT )
/** /**
* queue. h * queue. h
* <pre> * <pre>
* BaseType_t xQueueSendToBack( * BaseType_t xQueueSendToBack(
* QueueHandle_t xQueue, * QueueHandle_t xQueue,
* const void *pvItemToQueue, * const void *pvItemToQueue,
* TickType_t xTicksToWait * TickType_t xTicksToWait
* ); * );
* </pre> * </pre>
* *
@ -392,7 +394,8 @@
* \defgroup xQueueSend xQueueSend * \defgroup xQueueSend xQueueSend
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
#define xQueueSendToBack( xQueue, pvItemToQueue, xTicksToWait ) xQueueGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_BACK ) #define xQueueSendToBack( xQueue, pvItemToQueue, xTicksToWait ) \
xQueueGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_BACK )
/** /**
* queue. h * queue. h
@ -476,7 +479,8 @@
* \defgroup xQueueSend xQueueSend * \defgroup xQueueSend xQueueSend
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
#define xQueueSend( xQueue, pvItemToQueue, xTicksToWait ) xQueueGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_BACK ) #define xQueueSend( xQueue, pvItemToQueue, xTicksToWait ) \
xQueueGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_BACK )
/** /**
* queue. h * queue. h
@ -559,7 +563,8 @@
* \defgroup xQueueOverwrite xQueueOverwrite * \defgroup xQueueOverwrite xQueueOverwrite
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
#define xQueueOverwrite( xQueue, pvItemToQueue ) xQueueGenericSend( ( xQueue ), ( pvItemToQueue ), 0, queueOVERWRITE ) #define xQueueOverwrite( xQueue, pvItemToQueue ) \
xQueueGenericSend( ( xQueue ), ( pvItemToQueue ), 0, queueOVERWRITE )
/** /**
@ -647,10 +652,10 @@
* \defgroup xQueueSend xQueueSend * \defgroup xQueueSend xQueueSend
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
BaseType_t xQueueGenericSend( QueueHandle_t xQueue, BaseType_t xQueueGenericSend( QueueHandle_t xQueue,
const void * const pvItemToQueue, const void * const pvItemToQueue,
TickType_t xTicksToWait, TickType_t xTicksToWait,
const BaseType_t xCopyPosition ) PRIVILEGED_FUNCTION; const BaseType_t xCopyPosition ) PRIVILEGED_FUNCTION;
/** /**
* queue. h * queue. h
@ -659,7 +664,8 @@
* QueueHandle_t xQueue, * QueueHandle_t xQueue,
* void * const pvBuffer, * void * const pvBuffer,
* TickType_t xTicksToWait * TickType_t xTicksToWait
* );</pre> * );
* </pre>
* *
* Receive an item from a queue without removing the item from the queue. * Receive an item from a queue without removing the item from the queue.
* The item is received by copy so a buffer of adequate size must be * The item is received by copy so a buffer of adequate size must be
@ -681,7 +687,7 @@
* *
* @param xTicksToWait The maximum amount of time the task should block * @param xTicksToWait The maximum amount of time the task should block
* waiting for an item to receive should the queue be empty at the time * waiting for an item to receive should the queue be empty at the time
* of the call. The time is defined in tick periods so the constant * of the call. The time is defined in tick periods so the constant
* portTICK_PERIOD_MS should be used to convert to real time if this is required. * portTICK_PERIOD_MS should be used to convert to real time if this is required.
* xQueuePeek() will return immediately if xTicksToWait is 0 and the queue * xQueuePeek() will return immediately if xTicksToWait is 0 and the queue
* is empty. * is empty.
@ -744,9 +750,9 @@
* \defgroup xQueuePeek xQueuePeek * \defgroup xQueuePeek xQueuePeek
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
BaseType_t xQueuePeek( QueueHandle_t xQueue, BaseType_t xQueuePeek( QueueHandle_t xQueue,
void * const pvBuffer, void * const pvBuffer,
TickType_t xTicksToWait ) PRIVILEGED_FUNCTION; TickType_t xTicksToWait ) PRIVILEGED_FUNCTION;
/** /**
* queue. h * queue. h
@ -754,7 +760,8 @@
* BaseType_t xQueuePeekFromISR( * BaseType_t xQueuePeekFromISR(
* QueueHandle_t xQueue, * QueueHandle_t xQueue,
* void *pvBuffer, * void *pvBuffer,
* );</pre> * );
* </pre>
* *
* A version of xQueuePeek() that can be called from an interrupt service * A version of xQueuePeek() that can be called from an interrupt service
* routine (ISR). * routine (ISR).
@ -779,8 +786,8 @@
* \defgroup xQueuePeekFromISR xQueuePeekFromISR * \defgroup xQueuePeekFromISR xQueuePeekFromISR
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
BaseType_t xQueuePeekFromISR( QueueHandle_t xQueue, BaseType_t xQueuePeekFromISR( QueueHandle_t xQueue,
void * const pvBuffer ) PRIVILEGED_FUNCTION; void * const pvBuffer ) PRIVILEGED_FUNCTION;
/** /**
* queue. h * queue. h
@ -789,7 +796,8 @@
* QueueHandle_t xQueue, * QueueHandle_t xQueue,
* void *pvBuffer, * void *pvBuffer,
* TickType_t xTicksToWait * TickType_t xTicksToWait
* );</pre> * );
* </pre>
* *
* Receive an item from a queue. The item is received by copy so a buffer of * Receive an item from a queue. The item is received by copy so a buffer of
* adequate size must be provided. The number of bytes copied into the buffer * adequate size must be provided. The number of bytes copied into the buffer
@ -808,7 +816,7 @@
* *
* @param xTicksToWait The maximum amount of time the task should block * @param xTicksToWait The maximum amount of time the task should block
* waiting for an item to receive should the queue be empty at the time * waiting for an item to receive should the queue be empty at the time
* of the call. xQueueReceive() will return immediately if xTicksToWait * of the call. xQueueReceive() will return immediately if xTicksToWait
* is zero and the queue is empty. The time is defined in tick periods so the * is zero and the queue is empty. The time is defined in tick periods so the
* constant portTICK_PERIOD_MS should be used to convert to real time if this is * constant portTICK_PERIOD_MS should be used to convert to real time if this is
* required. * required.
@ -871,13 +879,15 @@
* \defgroup xQueueReceive xQueueReceive * \defgroup xQueueReceive xQueueReceive
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
BaseType_t xQueueReceive( QueueHandle_t xQueue, BaseType_t xQueueReceive( QueueHandle_t xQueue,
void * const pvBuffer, void * const pvBuffer,
TickType_t xTicksToWait ) PRIVILEGED_FUNCTION; TickType_t xTicksToWait ) PRIVILEGED_FUNCTION;
/** /**
* queue. h * queue. h
* <pre>UBaseType_t uxQueueMessagesWaiting( const QueueHandle_t xQueue );</pre> * <pre>
* UBaseType_t uxQueueMessagesWaiting( const QueueHandle_t xQueue );
* </pre>
* *
* Return the number of messages stored in a queue. * Return the number of messages stored in a queue.
* *
@ -888,11 +898,13 @@
* \defgroup uxQueueMessagesWaiting uxQueueMessagesWaiting * \defgroup uxQueueMessagesWaiting uxQueueMessagesWaiting
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
UBaseType_t uxQueueMessagesWaiting( const QueueHandle_t xQueue ) PRIVILEGED_FUNCTION; UBaseType_t uxQueueMessagesWaiting( const QueueHandle_t xQueue ) PRIVILEGED_FUNCTION;
/** /**
* queue. h * queue. h
* <pre>UBaseType_t uxQueueSpacesAvailable( const QueueHandle_t xQueue );</pre> * <pre>
* UBaseType_t uxQueueSpacesAvailable( const QueueHandle_t xQueue );
* </pre>
* *
* Return the number of free spaces available in a queue. This is equal to the * Return the number of free spaces available in a queue. This is equal to the
* number of items that can be sent to the queue before the queue becomes full * number of items that can be sent to the queue before the queue becomes full
@ -905,11 +917,13 @@
* \defgroup uxQueueMessagesWaiting uxQueueMessagesWaiting * \defgroup uxQueueMessagesWaiting uxQueueMessagesWaiting
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
UBaseType_t uxQueueSpacesAvailable( const QueueHandle_t xQueue ) PRIVILEGED_FUNCTION; UBaseType_t uxQueueSpacesAvailable( const QueueHandle_t xQueue ) PRIVILEGED_FUNCTION;
/** /**
* queue. h * queue. h
* <pre>void vQueueDelete( QueueHandle_t xQueue );</pre> * <pre>
* void vQueueDelete( QueueHandle_t xQueue );
* </pre>
* *
* Delete a queue - freeing all the memory allocated for storing of items * Delete a queue - freeing all the memory allocated for storing of items
* placed on the queue. * placed on the queue.
@ -919,7 +933,7 @@
* \defgroup vQueueDelete vQueueDelete * \defgroup vQueueDelete vQueueDelete
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
void vQueueDelete( QueueHandle_t xQueue ) PRIVILEGED_FUNCTION; void vQueueDelete( QueueHandle_t xQueue ) PRIVILEGED_FUNCTION;
/** /**
* queue. h * queue. h
@ -989,7 +1003,8 @@
* \defgroup xQueueSendFromISR xQueueSendFromISR * \defgroup xQueueSendFromISR xQueueSendFromISR
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
#define xQueueSendToFrontFromISR( xQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( ( xQueue ), ( pvItemToQueue ), ( pxHigherPriorityTaskWoken ), queueSEND_TO_FRONT ) #define xQueueSendToFrontFromISR( xQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) \
xQueueGenericSendFromISR( ( xQueue ), ( pvItemToQueue ), ( pxHigherPriorityTaskWoken ), queueSEND_TO_FRONT )
/** /**
@ -1060,7 +1075,8 @@
* \defgroup xQueueSendFromISR xQueueSendFromISR * \defgroup xQueueSendFromISR xQueueSendFromISR
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
#define xQueueSendToBackFromISR( xQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( ( xQueue ), ( pvItemToQueue ), ( pxHigherPriorityTaskWoken ), queueSEND_TO_BACK ) #define xQueueSendToBackFromISR( xQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) \
xQueueGenericSendFromISR( ( xQueue ), ( pvItemToQueue ), ( pxHigherPriorityTaskWoken ), queueSEND_TO_BACK )
/** /**
* queue. h * queue. h
@ -1147,7 +1163,8 @@
* \defgroup xQueueOverwriteFromISR xQueueOverwriteFromISR * \defgroup xQueueOverwriteFromISR xQueueOverwriteFromISR
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
#define xQueueOverwriteFromISR( xQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( ( xQueue ), ( pvItemToQueue ), ( pxHigherPriorityTaskWoken ), queueOVERWRITE ) #define xQueueOverwriteFromISR( xQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) \
xQueueGenericSendFromISR( ( xQueue ), ( pvItemToQueue ), ( pxHigherPriorityTaskWoken ), queueOVERWRITE )
/** /**
* queue. h * queue. h
@ -1221,16 +1238,17 @@
* \defgroup xQueueSendFromISR xQueueSendFromISR * \defgroup xQueueSendFromISR xQueueSendFromISR
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
#define xQueueSendFromISR( xQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( ( xQueue ), ( pvItemToQueue ), ( pxHigherPriorityTaskWoken ), queueSEND_TO_BACK ) #define xQueueSendFromISR( xQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) \
xQueueGenericSendFromISR( ( xQueue ), ( pvItemToQueue ), ( pxHigherPriorityTaskWoken ), queueSEND_TO_BACK )
/** /**
* queue. h * queue. h
* <pre> * <pre>
* BaseType_t xQueueGenericSendFromISR( * BaseType_t xQueueGenericSendFromISR(
* QueueHandle_t xQueue, * QueueHandle_t xQueue,
* const void *pvItemToQueue, * const void *pvItemToQueue,
* BaseType_t *pxHigherPriorityTaskWoken, * BaseType_t *pxHigherPriorityTaskWoken,
* BaseType_t xCopyPosition * BaseType_t xCopyPosition
* ); * );
* </pre> * </pre>
* *
@ -1300,20 +1318,20 @@
* \defgroup xQueueSendFromISR xQueueSendFromISR * \defgroup xQueueSendFromISR xQueueSendFromISR
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
BaseType_t xQueueGenericSendFromISR( QueueHandle_t xQueue, BaseType_t xQueueGenericSendFromISR( QueueHandle_t xQueue,
const void * const pvItemToQueue, const void * const pvItemToQueue,
BaseType_t * const pxHigherPriorityTaskWoken, BaseType_t * const pxHigherPriorityTaskWoken,
const BaseType_t xCopyPosition ) PRIVILEGED_FUNCTION; const BaseType_t xCopyPosition ) PRIVILEGED_FUNCTION;
BaseType_t xQueueGiveFromISR( QueueHandle_t xQueue, BaseType_t xQueueGiveFromISR( QueueHandle_t xQueue,
BaseType_t * const pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION; BaseType_t * const pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION;
/** /**
* queue. h * queue. h
* <pre> * <pre>
* BaseType_t xQueueReceiveFromISR( * BaseType_t xQueueReceiveFromISR(
* QueueHandle_t xQueue, * QueueHandle_t xQueue,
* void *pvBuffer, * void *pvBuffer,
* BaseType_t *pxTaskWoken * BaseType_t *pxTaskWoken
* ); * );
* </pre> * </pre>
* *
@ -1394,17 +1412,17 @@
* \defgroup xQueueReceiveFromISR xQueueReceiveFromISR * \defgroup xQueueReceiveFromISR xQueueReceiveFromISR
* \ingroup QueueManagement * \ingroup QueueManagement
*/ */
BaseType_t xQueueReceiveFromISR( QueueHandle_t xQueue, BaseType_t xQueueReceiveFromISR( QueueHandle_t xQueue,
void * const pvBuffer, void * const pvBuffer,
BaseType_t * const pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION; BaseType_t * const pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION;
/* /*
* Utilities to query queues that are safe to use from an ISR. These utilities * Utilities to query queues that are safe to use from an ISR. These utilities
* should be used only from witin an ISR, or within a critical section. * should be used only from witin an ISR, or within a critical section.
*/ */
BaseType_t xQueueIsQueueEmptyFromISR( const QueueHandle_t xQueue ) PRIVILEGED_FUNCTION; BaseType_t xQueueIsQueueEmptyFromISR( const QueueHandle_t xQueue ) PRIVILEGED_FUNCTION;
BaseType_t xQueueIsQueueFullFromISR( const QueueHandle_t xQueue ) PRIVILEGED_FUNCTION; BaseType_t xQueueIsQueueFullFromISR( const QueueHandle_t xQueue ) PRIVILEGED_FUNCTION;
UBaseType_t uxQueueMessagesWaitingFromISR( const QueueHandle_t xQueue ) PRIVILEGED_FUNCTION; UBaseType_t uxQueueMessagesWaitingFromISR( const QueueHandle_t xQueue ) PRIVILEGED_FUNCTION;
/* /*
* The functions defined above are for passing data to and from tasks. The * The functions defined above are for passing data to and from tasks. The
@ -1415,50 +1433,50 @@
* should not be called directly from application code. Instead use the macro * should not be called directly from application code. Instead use the macro
* wrappers defined within croutine.h. * wrappers defined within croutine.h.
*/ */
BaseType_t xQueueCRSendFromISR( QueueHandle_t xQueue, BaseType_t xQueueCRSendFromISR( QueueHandle_t xQueue,
const void * pvItemToQueue, const void * pvItemToQueue,
BaseType_t xCoRoutinePreviouslyWoken ); BaseType_t xCoRoutinePreviouslyWoken );
BaseType_t xQueueCRReceiveFromISR( QueueHandle_t xQueue, BaseType_t xQueueCRReceiveFromISR( QueueHandle_t xQueue,
void * pvBuffer, void * pvBuffer,
BaseType_t * pxTaskWoken ); BaseType_t * pxTaskWoken );
BaseType_t xQueueCRSend( QueueHandle_t xQueue, BaseType_t xQueueCRSend( QueueHandle_t xQueue,
const void * pvItemToQueue, const void * pvItemToQueue,
TickType_t xTicksToWait ); TickType_t xTicksToWait );
BaseType_t xQueueCRReceive( QueueHandle_t xQueue, BaseType_t xQueueCRReceive( QueueHandle_t xQueue,
void * pvBuffer, void * pvBuffer,
TickType_t xTicksToWait ); TickType_t xTicksToWait );
/* /*
* For internal use only. Use xSemaphoreCreateMutex(), * For internal use only. Use xSemaphoreCreateMutex(),
* xSemaphoreCreateCounting() or xSemaphoreGetMutexHolder() instead of calling * xSemaphoreCreateCounting() or xSemaphoreGetMutexHolder() instead of calling
* these functions directly. * these functions directly.
*/ */
QueueHandle_t xQueueCreateMutex( const uint8_t ucQueueType ) PRIVILEGED_FUNCTION; QueueHandle_t xQueueCreateMutex( const uint8_t ucQueueType ) PRIVILEGED_FUNCTION;
QueueHandle_t xQueueCreateMutexStatic( const uint8_t ucQueueType, QueueHandle_t xQueueCreateMutexStatic( const uint8_t ucQueueType,
StaticQueue_t * pxStaticQueue ) PRIVILEGED_FUNCTION; StaticQueue_t * pxStaticQueue ) PRIVILEGED_FUNCTION;
QueueHandle_t xQueueCreateCountingSemaphore( const UBaseType_t uxMaxCount, QueueHandle_t xQueueCreateCountingSemaphore( const UBaseType_t uxMaxCount,
const UBaseType_t uxInitialCount ) PRIVILEGED_FUNCTION; const UBaseType_t uxInitialCount ) PRIVILEGED_FUNCTION;
QueueHandle_t xQueueCreateCountingSemaphoreStatic( const UBaseType_t uxMaxCount, QueueHandle_t xQueueCreateCountingSemaphoreStatic( const UBaseType_t uxMaxCount,
const UBaseType_t uxInitialCount, const UBaseType_t uxInitialCount,
StaticQueue_t * pxStaticQueue ) PRIVILEGED_FUNCTION; StaticQueue_t * pxStaticQueue ) PRIVILEGED_FUNCTION;
BaseType_t xQueueSemaphoreTake( QueueHandle_t xQueue, BaseType_t xQueueSemaphoreTake( QueueHandle_t xQueue,
TickType_t xTicksToWait ) PRIVILEGED_FUNCTION; TickType_t xTicksToWait ) PRIVILEGED_FUNCTION;
TaskHandle_t xQueueGetMutexHolder( QueueHandle_t xSemaphore ) PRIVILEGED_FUNCTION; TaskHandle_t xQueueGetMutexHolder( QueueHandle_t xSemaphore ) PRIVILEGED_FUNCTION;
TaskHandle_t xQueueGetMutexHolderFromISR( QueueHandle_t xSemaphore ) PRIVILEGED_FUNCTION; TaskHandle_t xQueueGetMutexHolderFromISR( QueueHandle_t xSemaphore ) PRIVILEGED_FUNCTION;
/* /*
* For internal use only. Use xSemaphoreTakeMutexRecursive() or * For internal use only. Use xSemaphoreTakeMutexRecursive() or
* xSemaphoreGiveMutexRecursive() instead of calling these functions directly. * xSemaphoreGiveMutexRecursive() instead of calling these functions directly.
*/ */
BaseType_t xQueueTakeMutexRecursive( QueueHandle_t xMutex, BaseType_t xQueueTakeMutexRecursive( QueueHandle_t xMutex,
TickType_t xTicksToWait ) PRIVILEGED_FUNCTION; TickType_t xTicksToWait ) PRIVILEGED_FUNCTION;
BaseType_t xQueueGiveMutexRecursive( QueueHandle_t xMutex ) PRIVILEGED_FUNCTION; BaseType_t xQueueGiveMutexRecursive( QueueHandle_t xMutex ) PRIVILEGED_FUNCTION;
/* /*
* Reset a queue back to its original empty state. The return value is now * Reset a queue back to its original empty state. The return value is now
* obsolete and is always set to pdPASS. * obsolete and is always set to pdPASS.
*/ */
#define xQueueReset( xQueue ) xQueueGenericReset( xQueue, pdFALSE ) #define xQueueReset( xQueue ) xQueueGenericReset( xQueue, pdFALSE )
/* /*
* The registry is provided as a means for kernel aware debuggers to * The registry is provided as a means for kernel aware debuggers to
@ -1482,10 +1500,10 @@
* stores a pointer to the string - so the string must be persistent (global or * stores a pointer to the string - so the string must be persistent (global or
* preferably in ROM/Flash), not on the stack. * preferably in ROM/Flash), not on the stack.
*/ */
#if ( configQUEUE_REGISTRY_SIZE > 0 ) #if ( configQUEUE_REGISTRY_SIZE > 0 )
void vQueueAddToRegistry( QueueHandle_t xQueue, void vQueueAddToRegistry( QueueHandle_t xQueue,
const char * pcQueueName ) PRIVILEGED_FUNCTION; /*lint !e971 Unqualified char types are allowed for strings and single characters only. */ const char * pcQueueName ) PRIVILEGED_FUNCTION; /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
#endif #endif
/* /*
* The registry is provided as a means for kernel aware debuggers to * The registry is provided as a means for kernel aware debuggers to
@ -1497,9 +1515,9 @@
* *
* @param xQueue The handle of the queue being removed from the registry. * @param xQueue The handle of the queue being removed from the registry.
*/ */
#if ( configQUEUE_REGISTRY_SIZE > 0 ) #if ( configQUEUE_REGISTRY_SIZE > 0 )
void vQueueUnregisterQueue( QueueHandle_t xQueue ) PRIVILEGED_FUNCTION; void vQueueUnregisterQueue( QueueHandle_t xQueue ) PRIVILEGED_FUNCTION;
#endif #endif
/* /*
* The queue registry is provided as a means for kernel aware debuggers to * The queue registry is provided as a means for kernel aware debuggers to
@ -1512,33 +1530,33 @@
* queue is returned. If the queue is not in the registry then NULL is * queue is returned. If the queue is not in the registry then NULL is
* returned. * returned.
*/ */
#if ( configQUEUE_REGISTRY_SIZE > 0 ) #if ( configQUEUE_REGISTRY_SIZE > 0 )
const char * pcQueueGetName( QueueHandle_t xQueue ) PRIVILEGED_FUNCTION; /*lint !e971 Unqualified char types are allowed for strings and single characters only. */ const char * pcQueueGetName( QueueHandle_t xQueue ) PRIVILEGED_FUNCTION; /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
#endif #endif
/* /*
* Generic version of the function used to creaet a queue using dynamic memory * Generic version of the function used to creaet a queue using dynamic memory
* allocation. This is called by other functions and macros that create other * allocation. This is called by other functions and macros that create other
* RTOS objects that use the queue structure as their base. * RTOS objects that use the queue structure as their base.
*/ */
#if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) #if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
QueueHandle_t xQueueGenericCreate( const UBaseType_t uxQueueLength, QueueHandle_t xQueueGenericCreate( const UBaseType_t uxQueueLength,
const UBaseType_t uxItemSize, const UBaseType_t uxItemSize,
const uint8_t ucQueueType ) PRIVILEGED_FUNCTION; const uint8_t ucQueueType ) PRIVILEGED_FUNCTION;
#endif #endif
/* /*
* Generic version of the function used to creaet a queue using dynamic memory * Generic version of the function used to creaet a queue using dynamic memory
* allocation. This is called by other functions and macros that create other * allocation. This is called by other functions and macros that create other
* RTOS objects that use the queue structure as their base. * RTOS objects that use the queue structure as their base.
*/ */
#if ( configSUPPORT_STATIC_ALLOCATION == 1 ) #if ( configSUPPORT_STATIC_ALLOCATION == 1 )
QueueHandle_t xQueueGenericCreateStatic( const UBaseType_t uxQueueLength, QueueHandle_t xQueueGenericCreateStatic( const UBaseType_t uxQueueLength,
const UBaseType_t uxItemSize, const UBaseType_t uxItemSize,
uint8_t * pucQueueStorage, uint8_t * pucQueueStorage,
StaticQueue_t * pxStaticQueue, StaticQueue_t * pxStaticQueue,
const uint8_t ucQueueType ) PRIVILEGED_FUNCTION; const uint8_t ucQueueType ) PRIVILEGED_FUNCTION;
#endif #endif
/* /*
* Queue sets provide a mechanism to allow a task to block (pend) on a read * Queue sets provide a mechanism to allow a task to block (pend) on a read
@ -1588,7 +1606,7 @@
* @return If the queue set is created successfully then a handle to the created * @return If the queue set is created successfully then a handle to the created
* queue set is returned. Otherwise NULL is returned. * queue set is returned. Otherwise NULL is returned.
*/ */
QueueSetHandle_t xQueueCreateSet( const UBaseType_t uxEventQueueLength ) PRIVILEGED_FUNCTION; QueueSetHandle_t xQueueCreateSet( const UBaseType_t uxEventQueueLength ) PRIVILEGED_FUNCTION;
/* /*
* Adds a queue or semaphore to a queue set that was previously created by a * Adds a queue or semaphore to a queue set that was previously created by a
@ -1612,8 +1630,8 @@
* queue set because it is already a member of a different queue set then pdFAIL * queue set because it is already a member of a different queue set then pdFAIL
* is returned. * is returned.
*/ */
BaseType_t xQueueAddToSet( QueueSetMemberHandle_t xQueueOrSemaphore, BaseType_t xQueueAddToSet( QueueSetMemberHandle_t xQueueOrSemaphore,
QueueSetHandle_t xQueueSet ) PRIVILEGED_FUNCTION; QueueSetHandle_t xQueueSet ) PRIVILEGED_FUNCTION;
/* /*
* Removes a queue or semaphore from a queue set. A queue or semaphore can only * Removes a queue or semaphore from a queue set. A queue or semaphore can only
@ -1632,8 +1650,8 @@
* then pdPASS is returned. If the queue was not in the queue set, or the * then pdPASS is returned. If the queue was not in the queue set, or the
* queue (or semaphore) was not empty, then pdFAIL is returned. * queue (or semaphore) was not empty, then pdFAIL is returned.
*/ */
BaseType_t xQueueRemoveFromSet( QueueSetMemberHandle_t xQueueOrSemaphore, BaseType_t xQueueRemoveFromSet( QueueSetMemberHandle_t xQueueOrSemaphore,
QueueSetHandle_t xQueueSet ) PRIVILEGED_FUNCTION; QueueSetHandle_t xQueueSet ) PRIVILEGED_FUNCTION;
/* /*
* xQueueSelectFromSet() selects from the members of a queue set a queue or * xQueueSelectFromSet() selects from the members of a queue set a queue or
@ -1669,28 +1687,30 @@
* in the queue set that is available, or NULL if no such queue or semaphore * in the queue set that is available, or NULL if no such queue or semaphore
* exists before before the specified block time expires. * exists before before the specified block time expires.
*/ */
QueueSetMemberHandle_t xQueueSelectFromSet( QueueSetHandle_t xQueueSet, QueueSetMemberHandle_t xQueueSelectFromSet( QueueSetHandle_t xQueueSet,
const TickType_t xTicksToWait ) PRIVILEGED_FUNCTION; const TickType_t xTicksToWait ) PRIVILEGED_FUNCTION;
/* /*
* A version of xQueueSelectFromSet() that can be used from an ISR. * A version of xQueueSelectFromSet() that can be used from an ISR.
*/ */
QueueSetMemberHandle_t xQueueSelectFromSetFromISR( QueueSetHandle_t xQueueSet ) PRIVILEGED_FUNCTION; QueueSetMemberHandle_t xQueueSelectFromSetFromISR( QueueSetHandle_t xQueueSet ) PRIVILEGED_FUNCTION;
/* Not public API functions. */ /* Not public API functions. */
void vQueueWaitForMessageRestricted( QueueHandle_t xQueue, void vQueueWaitForMessageRestricted( QueueHandle_t xQueue,
TickType_t xTicksToWait, TickType_t xTicksToWait,
const BaseType_t xWaitIndefinitely ) PRIVILEGED_FUNCTION; const BaseType_t xWaitIndefinitely ) PRIVILEGED_FUNCTION;
BaseType_t xQueueGenericReset( QueueHandle_t xQueue, BaseType_t xQueueGenericReset( QueueHandle_t xQueue,
BaseType_t xNewQueue ) PRIVILEGED_FUNCTION; BaseType_t xNewQueue ) PRIVILEGED_FUNCTION;
void vQueueSetQueueNumber( QueueHandle_t xQueue, void vQueueSetQueueNumber( QueueHandle_t xQueue,
UBaseType_t uxQueueNumber ) PRIVILEGED_FUNCTION; UBaseType_t uxQueueNumber ) PRIVILEGED_FUNCTION;
UBaseType_t uxQueueGetQueueNumber( QueueHandle_t xQueue ) PRIVILEGED_FUNCTION; UBaseType_t uxQueueGetQueueNumber( QueueHandle_t xQueue ) PRIVILEGED_FUNCTION;
uint8_t ucQueueGetQueueType( QueueHandle_t xQueue ) PRIVILEGED_FUNCTION; uint8_t ucQueueGetQueueType( QueueHandle_t xQueue ) PRIVILEGED_FUNCTION;
#ifdef __cplusplus /* *INDENT-OFF* */
} #ifdef __cplusplus
#endif }
#endif
/* *INDENT-ON* */
#endif /* QUEUE_H */ #endif /* QUEUE_H */

83
include/semphr.h
View file

@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
#ifndef SEMAPHORE_H #ifndef SEMAPHORE_H
@ -43,7 +42,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr. h * semphr. h
* <pre>vSemaphoreCreateBinary( SemaphoreHandle_t xSemaphore )</pre> * <pre>
* vSemaphoreCreateBinary( SemaphoreHandle_t xSemaphore );
* </pre>
* *
* In many usage scenarios it is faster and more memory efficient to use a * In many usage scenarios it is faster and more memory efficient to use a
* direct to task notification in place of a binary semaphore! * direct to task notification in place of a binary semaphore!
@ -103,7 +104,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr. h * semphr. h
* <pre>SemaphoreHandle_t xSemaphoreCreateBinary( void )</pre> * <pre>
* SemaphoreHandle_t xSemaphoreCreateBinary( void );
* </pre>
* *
* Creates a new binary semaphore instance, and returns a handle by which the * Creates a new binary semaphore instance, and returns a handle by which the
* new semaphore can be referenced. * new semaphore can be referenced.
@ -164,7 +167,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr. h * semphr. h
* <pre>SemaphoreHandle_t xSemaphoreCreateBinaryStatic( StaticSemaphore_t *pxSemaphoreBuffer )</pre> * <pre>
* SemaphoreHandle_t xSemaphoreCreateBinaryStatic( StaticSemaphore_t *pxSemaphoreBuffer );
* </pre>
* *
* Creates a new binary semaphore instance, and returns a handle by which the * Creates a new binary semaphore instance, and returns a handle by which the
* new semaphore can be referenced. * new semaphore can be referenced.
@ -223,10 +228,12 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr. h * semphr. h
* <pre>xSemaphoreTake( * <pre>
* xSemaphoreTake(
* SemaphoreHandle_t xSemaphore, * SemaphoreHandle_t xSemaphore,
* TickType_t xBlockTime * TickType_t xBlockTime
* )</pre> * );
* </pre>
* *
* <i>Macro</i> to obtain a semaphore. The semaphore must have previously been * <i>Macro</i> to obtain a semaphore. The semaphore must have previously been
* created with a call to xSemaphoreCreateBinary(), xSemaphoreCreateMutex() or * created with a call to xSemaphoreCreateBinary(), xSemaphoreCreateMutex() or
@ -290,10 +297,12 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr. h * semphr. h
* <pre>
* xSemaphoreTakeRecursive( * xSemaphoreTakeRecursive(
* SemaphoreHandle_t xMutex, * SemaphoreHandle_t xMutex,
* TickType_t xBlockTime * TickType_t xBlockTime
* ) * );
* </pre>
* *
* <i>Macro</i> to recursively obtain, or 'take', a mutex type semaphore. * <i>Macro</i> to recursively obtain, or 'take', a mutex type semaphore.
* The mutex must have previously been created using a call to * The mutex must have previously been created using a call to
@ -385,7 +394,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr. h * semphr. h
* <pre>xSemaphoreGive( SemaphoreHandle_t xSemaphore )</pre> * <pre>
* xSemaphoreGive( SemaphoreHandle_t xSemaphore );
* </pre>
* *
* <i>Macro</i> to release a semaphore. The semaphore must have previously been * <i>Macro</i> to release a semaphore. The semaphore must have previously been
* created with a call to xSemaphoreCreateBinary(), xSemaphoreCreateMutex() or * created with a call to xSemaphoreCreateBinary(), xSemaphoreCreateMutex() or
@ -448,7 +459,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr. h * semphr. h
* <pre>xSemaphoreGiveRecursive( SemaphoreHandle_t xMutex )</pre> * <pre>
* xSemaphoreGiveRecursive( SemaphoreHandle_t xMutex );
* </pre>
* *
* <i>Macro</i> to recursively release, or 'give', a mutex type semaphore. * <i>Macro</i> to recursively release, or 'give', a mutex type semaphore.
* The mutex must have previously been created using a call to * The mutex must have previously been created using a call to
@ -538,7 +551,8 @@ typedef QueueHandle_t SemaphoreHandle_t;
* xSemaphoreGiveFromISR( * xSemaphoreGiveFromISR(
* SemaphoreHandle_t xSemaphore, * SemaphoreHandle_t xSemaphore,
* BaseType_t *pxHigherPriorityTaskWoken * BaseType_t *pxHigherPriorityTaskWoken
* )</pre> * );
* </pre>
* *
* <i>Macro</i> to release a semaphore. The semaphore must have previously been * <i>Macro</i> to release a semaphore. The semaphore must have previously been
* created with a call to xSemaphoreCreateBinary() or xSemaphoreCreateCounting(). * created with a call to xSemaphoreCreateBinary() or xSemaphoreCreateCounting().
@ -562,7 +576,7 @@ typedef QueueHandle_t SemaphoreHandle_t;
* Example usage: * Example usage:
* <pre> * <pre>
\#define LONG_TIME 0xffff \#define LONG_TIME 0xffff
\#define TICKS_TO_WAIT 10 \#define TICKS_TO_WAIT 10
* SemaphoreHandle_t xSemaphore = NULL; * SemaphoreHandle_t xSemaphore = NULL;
* *
* // Repetitive task. * // Repetitive task.
@ -629,7 +643,8 @@ typedef QueueHandle_t SemaphoreHandle_t;
* xSemaphoreTakeFromISR( * xSemaphoreTakeFromISR(
* SemaphoreHandle_t xSemaphore, * SemaphoreHandle_t xSemaphore,
* BaseType_t *pxHigherPriorityTaskWoken * BaseType_t *pxHigherPriorityTaskWoken
* )</pre> * );
* </pre>
* *
* <i>Macro</i> to take a semaphore from an ISR. The semaphore must have * <i>Macro</i> to take a semaphore from an ISR. The semaphore must have
* previously been created with a call to xSemaphoreCreateBinary() or * previously been created with a call to xSemaphoreCreateBinary() or
@ -659,7 +674,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr. h * semphr. h
* <pre>SemaphoreHandle_t xSemaphoreCreateMutex( void )</pre> * <pre>
* SemaphoreHandle_t xSemaphoreCreateMutex( void );
* </pre>
* *
* Creates a new mutex type semaphore instance, and returns a handle by which * Creates a new mutex type semaphore instance, and returns a handle by which
* the new mutex can be referenced. * the new mutex can be referenced.
@ -718,7 +735,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr. h * semphr. h
* <pre>SemaphoreHandle_t xSemaphoreCreateMutexStatic( StaticSemaphore_t *pxMutexBuffer )</pre> * <pre>
* SemaphoreHandle_t xSemaphoreCreateMutexStatic( StaticSemaphore_t *pxMutexBuffer );
* </pre>
* *
* Creates a new mutex type semaphore instance, and returns a handle by which * Creates a new mutex type semaphore instance, and returns a handle by which
* the new mutex can be referenced. * the new mutex can be referenced.
@ -780,7 +799,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr. h * semphr. h
* <pre>SemaphoreHandle_t xSemaphoreCreateRecursiveMutex( void )</pre> * <pre>
* SemaphoreHandle_t xSemaphoreCreateRecursiveMutex( void );
* </pre>
* *
* Creates a new recursive mutex type semaphore instance, and returns a handle * Creates a new recursive mutex type semaphore instance, and returns a handle
* by which the new recursive mutex can be referenced. * by which the new recursive mutex can be referenced.
@ -847,7 +868,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr. h * semphr. h
* <pre>SemaphoreHandle_t xSemaphoreCreateRecursiveMutexStatic( StaticSemaphore_t *pxMutexBuffer )</pre> * <pre>
* SemaphoreHandle_t xSemaphoreCreateRecursiveMutexStatic( StaticSemaphore_t *pxMutexBuffer );
* </pre>
* *
* Creates a new recursive mutex type semaphore instance, and returns a handle * Creates a new recursive mutex type semaphore instance, and returns a handle
* by which the new recursive mutex can be referenced. * by which the new recursive mutex can be referenced.
@ -920,7 +943,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr. h * semphr. h
* <pre>SemaphoreHandle_t xSemaphoreCreateCounting( UBaseType_t uxMaxCount, UBaseType_t uxInitialCount )</pre> * <pre>
* SemaphoreHandle_t xSemaphoreCreateCounting( UBaseType_t uxMaxCount, UBaseType_t uxInitialCount );
* </pre>
* *
* Creates a new counting semaphore instance, and returns a handle by which the * Creates a new counting semaphore instance, and returns a handle by which the
* new counting semaphore can be referenced. * new counting semaphore can be referenced.
@ -1000,7 +1025,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr. h * semphr. h
* <pre>SemaphoreHandle_t xSemaphoreCreateCountingStatic( UBaseType_t uxMaxCount, UBaseType_t uxInitialCount, StaticSemaphore_t *pxSemaphoreBuffer )</pre> * <pre>
* SemaphoreHandle_t xSemaphoreCreateCountingStatic( UBaseType_t uxMaxCount, UBaseType_t uxInitialCount, StaticSemaphore_t *pxSemaphoreBuffer );
* </pre>
* *
* Creates a new counting semaphore instance, and returns a handle by which the * Creates a new counting semaphore instance, and returns a handle by which the
* new counting semaphore can be referenced. * new counting semaphore can be referenced.
@ -1085,7 +1112,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr. h * semphr. h
* <pre>void vSemaphoreDelete( SemaphoreHandle_t xSemaphore );</pre> * <pre>
* void vSemaphoreDelete( SemaphoreHandle_t xSemaphore );
* </pre>
* *
* Delete a semaphore. This function must be used with care. For example, * Delete a semaphore. This function must be used with care. For example,
* do not delete a mutex type semaphore if the mutex is held by a task. * do not delete a mutex type semaphore if the mutex is held by a task.
@ -1099,7 +1128,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr.h * semphr.h
* <pre>TaskHandle_t xSemaphoreGetMutexHolder( SemaphoreHandle_t xMutex );</pre> * <pre>
* TaskHandle_t xSemaphoreGetMutexHolder( SemaphoreHandle_t xMutex );
* </pre>
* *
* If xMutex is indeed a mutex type semaphore, return the current mutex holder. * If xMutex is indeed a mutex type semaphore, return the current mutex holder.
* If xMutex is not a mutex type semaphore, or the mutex is available (not held * If xMutex is not a mutex type semaphore, or the mutex is available (not held
@ -1114,7 +1145,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr.h * semphr.h
* <pre>TaskHandle_t xSemaphoreGetMutexHolderFromISR( SemaphoreHandle_t xMutex );</pre> * <pre>
* TaskHandle_t xSemaphoreGetMutexHolderFromISR( SemaphoreHandle_t xMutex );
* </pre>
* *
* If xMutex is indeed a mutex type semaphore, return the current mutex holder. * If xMutex is indeed a mutex type semaphore, return the current mutex holder.
* If xMutex is not a mutex type semaphore, or the mutex is available (not held * If xMutex is not a mutex type semaphore, or the mutex is available (not held
@ -1125,7 +1158,9 @@ typedef QueueHandle_t SemaphoreHandle_t;
/** /**
* semphr.h * semphr.h
* <pre>UBaseType_t uxSemaphoreGetCount( SemaphoreHandle_t xSemaphore );</pre> * <pre>
* UBaseType_t uxSemaphoreGetCount( SemaphoreHandle_t xSemaphore );
* </pre>
* *
* If the semaphore is a counting semaphore then uxSemaphoreGetCount() returns * If the semaphore is a counting semaphore then uxSemaphoreGetCount() returns
* its current count value. If the semaphore is a binary semaphore then * its current count value. If the semaphore is a binary semaphore then

5
include/stack_macros.h
View file

@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
#ifndef STACK_MACROS_H #ifndef STACK_MACROS_H

124
include/stream_buffer.h
View file

@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
/* /*
@ -49,15 +48,17 @@
*/ */
#ifndef STREAM_BUFFER_H #ifndef STREAM_BUFFER_H
#define STREAM_BUFFER_H #define STREAM_BUFFER_H
#ifndef INC_FREERTOS_H #ifndef INC_FREERTOS_H
#error "include FreeRTOS.h must appear in source files before include stream_buffer.h" #error "include FreeRTOS.h must appear in source files before include stream_buffer.h"
#endif #endif
#if defined( __cplusplus ) /* *INDENT-OFF* */
extern "C" { #if defined( __cplusplus )
#endif extern "C" {
#endif
/* *INDENT-ON* */
/** /**
* Type by which stream buffers are referenced. For example, a call to * Type by which stream buffers are referenced. For example, a call to
@ -65,8 +66,8 @@
* then be used as a parameter to xStreamBufferSend(), xStreamBufferReceive(), * then be used as a parameter to xStreamBufferSend(), xStreamBufferReceive(),
* etc. * etc.
*/ */
struct StreamBufferDef_t; struct StreamBufferDef_t;
typedef struct StreamBufferDef_t * StreamBufferHandle_t; typedef struct StreamBufferDef_t * StreamBufferHandle_t;
/** /**
@ -134,7 +135,7 @@
* \defgroup xStreamBufferCreate xStreamBufferCreate * \defgroup xStreamBufferCreate xStreamBufferCreate
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
#define xStreamBufferCreate( xBufferSizeBytes, xTriggerLevelBytes ) xStreamBufferGenericCreate( xBufferSizeBytes, xTriggerLevelBytes, pdFALSE ) #define xStreamBufferCreate( xBufferSizeBytes, xTriggerLevelBytes ) xStreamBufferGenericCreate( xBufferSizeBytes, xTriggerLevelBytes, pdFALSE )
/** /**
* stream_buffer.h * stream_buffer.h
@ -215,7 +216,8 @@
* \defgroup xStreamBufferCreateStatic xStreamBufferCreateStatic * \defgroup xStreamBufferCreateStatic xStreamBufferCreateStatic
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
#define xStreamBufferCreateStatic( xBufferSizeBytes, xTriggerLevelBytes, pucStreamBufferStorageArea, pxStaticStreamBuffer ) xStreamBufferGenericCreateStatic( xBufferSizeBytes, xTriggerLevelBytes, pdFALSE, pucStreamBufferStorageArea, pxStaticStreamBuffer ) #define xStreamBufferCreateStatic( xBufferSizeBytes, xTriggerLevelBytes, pucStreamBufferStorageArea, pxStaticStreamBuffer ) \
xStreamBufferGenericCreateStatic( xBufferSizeBytes, xTriggerLevelBytes, pdFALSE, pucStreamBufferStorageArea, pxStaticStreamBuffer )
/** /**
* stream_buffer.h * stream_buffer.h
@ -309,10 +311,10 @@
* \defgroup xStreamBufferSend xStreamBufferSend * \defgroup xStreamBufferSend xStreamBufferSend
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
size_t xStreamBufferSend( StreamBufferHandle_t xStreamBuffer, size_t xStreamBufferSend( StreamBufferHandle_t xStreamBuffer,
const void * pvTxData, const void * pvTxData,
size_t xDataLengthBytes, size_t xDataLengthBytes,
TickType_t xTicksToWait ) PRIVILEGED_FUNCTION; TickType_t xTicksToWait ) PRIVILEGED_FUNCTION;
/** /**
* stream_buffer.h * stream_buffer.h
@ -410,10 +412,10 @@
* \defgroup xStreamBufferSendFromISR xStreamBufferSendFromISR * \defgroup xStreamBufferSendFromISR xStreamBufferSendFromISR
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
size_t xStreamBufferSendFromISR( StreamBufferHandle_t xStreamBuffer, size_t xStreamBufferSendFromISR( StreamBufferHandle_t xStreamBuffer,
const void * pvTxData, const void * pvTxData,
size_t xDataLengthBytes, size_t xDataLengthBytes,
BaseType_t * const pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION; BaseType_t * const pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION;
/** /**
* stream_buffer.h * stream_buffer.h
@ -499,10 +501,10 @@
* \defgroup xStreamBufferReceive xStreamBufferReceive * \defgroup xStreamBufferReceive xStreamBufferReceive
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
size_t xStreamBufferReceive( StreamBufferHandle_t xStreamBuffer, size_t xStreamBufferReceive( StreamBufferHandle_t xStreamBuffer,
void * pvRxData, void * pvRxData,
size_t xBufferLengthBytes, size_t xBufferLengthBytes,
TickType_t xTicksToWait ) PRIVILEGED_FUNCTION; TickType_t xTicksToWait ) PRIVILEGED_FUNCTION;
/** /**
* stream_buffer.h * stream_buffer.h
@ -585,10 +587,10 @@
* \defgroup xStreamBufferReceiveFromISR xStreamBufferReceiveFromISR * \defgroup xStreamBufferReceiveFromISR xStreamBufferReceiveFromISR
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
size_t xStreamBufferReceiveFromISR( StreamBufferHandle_t xStreamBuffer, size_t xStreamBufferReceiveFromISR( StreamBufferHandle_t xStreamBuffer,
void * pvRxData, void * pvRxData,
size_t xBufferLengthBytes, size_t xBufferLengthBytes,
BaseType_t * const pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION; BaseType_t * const pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION;
/** /**
* stream_buffer.h * stream_buffer.h
@ -610,7 +612,7 @@
* \defgroup vStreamBufferDelete vStreamBufferDelete * \defgroup vStreamBufferDelete vStreamBufferDelete
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
void vStreamBufferDelete( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION; void vStreamBufferDelete( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION;
/** /**
* stream_buffer.h * stream_buffer.h
@ -630,7 +632,7 @@
* \defgroup xStreamBufferIsFull xStreamBufferIsFull * \defgroup xStreamBufferIsFull xStreamBufferIsFull
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
BaseType_t xStreamBufferIsFull( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION; BaseType_t xStreamBufferIsFull( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION;
/** /**
* stream_buffer.h * stream_buffer.h
@ -650,7 +652,7 @@
* \defgroup xStreamBufferIsEmpty xStreamBufferIsEmpty * \defgroup xStreamBufferIsEmpty xStreamBufferIsEmpty
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
BaseType_t xStreamBufferIsEmpty( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION; BaseType_t xStreamBufferIsEmpty( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION;
/** /**
* stream_buffer.h * stream_buffer.h
@ -673,7 +675,7 @@
* \defgroup xStreamBufferReset xStreamBufferReset * \defgroup xStreamBufferReset xStreamBufferReset
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
BaseType_t xStreamBufferReset( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION; BaseType_t xStreamBufferReset( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION;
/** /**
* stream_buffer.h * stream_buffer.h
@ -694,7 +696,7 @@
* \defgroup xStreamBufferSpacesAvailable xStreamBufferSpacesAvailable * \defgroup xStreamBufferSpacesAvailable xStreamBufferSpacesAvailable
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
size_t xStreamBufferSpacesAvailable( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION; size_t xStreamBufferSpacesAvailable( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION;
/** /**
* stream_buffer.h * stream_buffer.h
@ -715,7 +717,7 @@
* \defgroup xStreamBufferBytesAvailable xStreamBufferBytesAvailable * \defgroup xStreamBufferBytesAvailable xStreamBufferBytesAvailable
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
size_t xStreamBufferBytesAvailable( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION; size_t xStreamBufferBytesAvailable( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION;
/** /**
* stream_buffer.h * stream_buffer.h
@ -752,8 +754,8 @@
* \defgroup xStreamBufferSetTriggerLevel xStreamBufferSetTriggerLevel * \defgroup xStreamBufferSetTriggerLevel xStreamBufferSetTriggerLevel
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
BaseType_t xStreamBufferSetTriggerLevel( StreamBufferHandle_t xStreamBuffer, BaseType_t xStreamBufferSetTriggerLevel( StreamBufferHandle_t xStreamBuffer,
size_t xTriggerLevel ) PRIVILEGED_FUNCTION; size_t xTriggerLevel ) PRIVILEGED_FUNCTION;
/** /**
* stream_buffer.h * stream_buffer.h
@ -792,8 +794,8 @@
* \defgroup xStreamBufferSendCompletedFromISR xStreamBufferSendCompletedFromISR * \defgroup xStreamBufferSendCompletedFromISR xStreamBufferSendCompletedFromISR
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
BaseType_t xStreamBufferSendCompletedFromISR( StreamBufferHandle_t xStreamBuffer, BaseType_t xStreamBufferSendCompletedFromISR( StreamBufferHandle_t xStreamBuffer,
BaseType_t * pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION; BaseType_t * pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION;
/** /**
* stream_buffer.h * stream_buffer.h
@ -833,31 +835,33 @@
* \defgroup xStreamBufferReceiveCompletedFromISR xStreamBufferReceiveCompletedFromISR * \defgroup xStreamBufferReceiveCompletedFromISR xStreamBufferReceiveCompletedFromISR
* \ingroup StreamBufferManagement * \ingroup StreamBufferManagement
*/ */
BaseType_t xStreamBufferReceiveCompletedFromISR( StreamBufferHandle_t xStreamBuffer, BaseType_t xStreamBufferReceiveCompletedFromISR( StreamBufferHandle_t xStreamBuffer,
BaseType_t * pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION; BaseType_t * pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION;
/* Functions below here are not part of the public API. */ /* Functions below here are not part of the public API. */
StreamBufferHandle_t xStreamBufferGenericCreate( size_t xBufferSizeBytes, StreamBufferHandle_t xStreamBufferGenericCreate( size_t xBufferSizeBytes,
size_t xTriggerLevelBytes, size_t xTriggerLevelBytes,
BaseType_t xIsMessageBuffer ) PRIVILEGED_FUNCTION; BaseType_t xIsMessageBuffer ) PRIVILEGED_FUNCTION;
StreamBufferHandle_t xStreamBufferGenericCreateStatic( size_t xBufferSizeBytes, StreamBufferHandle_t xStreamBufferGenericCreateStatic( size_t xBufferSizeBytes,
size_t xTriggerLevelBytes, size_t xTriggerLevelBytes,
BaseType_t xIsMessageBuffer, BaseType_t xIsMessageBuffer,
uint8_t * const pucStreamBufferStorageArea, uint8_t * const pucStreamBufferStorageArea,
StaticStreamBuffer_t * const pxStaticStreamBuffer ) PRIVILEGED_FUNCTION; StaticStreamBuffer_t * const pxStaticStreamBuffer ) PRIVILEGED_FUNCTION;
size_t xStreamBufferNextMessageLengthBytes( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION; size_t xStreamBufferNextMessageLengthBytes( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION;
#if ( configUSE_TRACE_FACILITY == 1 ) #if ( configUSE_TRACE_FACILITY == 1 )
void vStreamBufferSetStreamBufferNumber( StreamBufferHandle_t xStreamBuffer, void vStreamBufferSetStreamBufferNumber( StreamBufferHandle_t xStreamBuffer,
UBaseType_t uxStreamBufferNumber ) PRIVILEGED_FUNCTION; UBaseType_t uxStreamBufferNumber ) PRIVILEGED_FUNCTION;
UBaseType_t uxStreamBufferGetStreamBufferNumber( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION; UBaseType_t uxStreamBufferGetStreamBufferNumber( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION;
uint8_t ucStreamBufferGetStreamBufferType( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION; uint8_t ucStreamBufferGetStreamBufferType( StreamBufferHandle_t xStreamBuffer ) PRIVILEGED_FUNCTION;
#endif #endif
#if defined( __cplusplus ) /* *INDENT-OFF* */
} #if defined( __cplusplus )
#endif }
#endif
/* *INDENT-ON* */
#endif /* !defined( STREAM_BUFFER_H ) */ #endif /* !defined( STREAM_BUFFER_H ) */

790
include/task.h
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File diff suppressed because it is too large Load diff

267
include/timers.h
View file

@ -19,28 +19,29 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
#ifndef TIMERS_H #ifndef TIMERS_H
#define TIMERS_H #define TIMERS_H
#ifndef INC_FREERTOS_H #ifndef INC_FREERTOS_H
#error "include FreeRTOS.h must appear in source files before include timers.h" #error "include FreeRTOS.h must appear in source files before include timers.h"
#endif #endif
/*lint -save -e537 This headers are only multiply included if the application code /*lint -save -e537 This headers are only multiply included if the application code
* happens to also be including task.h. */ * happens to also be including task.h. */
#include "task.h" #include "task.h"
/*lint -restore */ /*lint -restore */
#ifdef __cplusplus /* *INDENT-OFF* */
extern "C" { #ifdef __cplusplus
#endif extern "C" {
#endif
/* *INDENT-ON* */
/*----------------------------------------------------------- /*-----------------------------------------------------------
* MACROS AND DEFINITIONS * MACROS AND DEFINITIONS
@ -51,20 +52,20 @@
* as defined below. The commands that are sent from interrupts must use the * as defined below. The commands that are sent from interrupts must use the
* highest numbers as tmrFIRST_FROM_ISR_COMMAND is used to determine if the task * highest numbers as tmrFIRST_FROM_ISR_COMMAND is used to determine if the task
* or interrupt version of the queue send function should be used. */ * or interrupt version of the queue send function should be used. */
#define tmrCOMMAND_EXECUTE_CALLBACK_FROM_ISR ( ( BaseType_t ) -2 ) #define tmrCOMMAND_EXECUTE_CALLBACK_FROM_ISR ( ( BaseType_t ) -2 )
#define tmrCOMMAND_EXECUTE_CALLBACK ( ( BaseType_t ) -1 ) #define tmrCOMMAND_EXECUTE_CALLBACK ( ( BaseType_t ) -1 )
#define tmrCOMMAND_START_DONT_TRACE ( ( BaseType_t ) 0 ) #define tmrCOMMAND_START_DONT_TRACE ( ( BaseType_t ) 0 )
#define tmrCOMMAND_START ( ( BaseType_t ) 1 ) #define tmrCOMMAND_START ( ( BaseType_t ) 1 )
#define tmrCOMMAND_RESET ( ( BaseType_t ) 2 ) #define tmrCOMMAND_RESET ( ( BaseType_t ) 2 )
#define tmrCOMMAND_STOP ( ( BaseType_t ) 3 ) #define tmrCOMMAND_STOP ( ( BaseType_t ) 3 )
#define tmrCOMMAND_CHANGE_PERIOD ( ( BaseType_t ) 4 ) #define tmrCOMMAND_CHANGE_PERIOD ( ( BaseType_t ) 4 )
#define tmrCOMMAND_DELETE ( ( BaseType_t ) 5 ) #define tmrCOMMAND_DELETE ( ( BaseType_t ) 5 )
#define tmrFIRST_FROM_ISR_COMMAND ( ( BaseType_t ) 6 ) #define tmrFIRST_FROM_ISR_COMMAND ( ( BaseType_t ) 6 )
#define tmrCOMMAND_START_FROM_ISR ( ( BaseType_t ) 6 ) #define tmrCOMMAND_START_FROM_ISR ( ( BaseType_t ) 6 )
#define tmrCOMMAND_RESET_FROM_ISR ( ( BaseType_t ) 7 ) #define tmrCOMMAND_RESET_FROM_ISR ( ( BaseType_t ) 7 )
#define tmrCOMMAND_STOP_FROM_ISR ( ( BaseType_t ) 8 ) #define tmrCOMMAND_STOP_FROM_ISR ( ( BaseType_t ) 8 )
#define tmrCOMMAND_CHANGE_PERIOD_FROM_ISR ( ( BaseType_t ) 9 ) #define tmrCOMMAND_CHANGE_PERIOD_FROM_ISR ( ( BaseType_t ) 9 )
/** /**
@ -73,20 +74,20 @@
* reference the subject timer in calls to other software timer API functions * reference the subject timer in calls to other software timer API functions
* (for example, xTimerStart(), xTimerReset(), etc.). * (for example, xTimerStart(), xTimerReset(), etc.).
*/ */
struct tmrTimerControl; /* The old naming convention is used to prevent breaking kernel aware debuggers. */ struct tmrTimerControl; /* The old naming convention is used to prevent breaking kernel aware debuggers. */
typedef struct tmrTimerControl * TimerHandle_t; typedef struct tmrTimerControl * TimerHandle_t;
/* /*
* Defines the prototype to which timer callback functions must conform. * Defines the prototype to which timer callback functions must conform.
*/ */
typedef void (* TimerCallbackFunction_t)( TimerHandle_t xTimer ); typedef void (* TimerCallbackFunction_t)( TimerHandle_t xTimer );
/* /*
* Defines the prototype to which functions used with the * Defines the prototype to which functions used with the
* xTimerPendFunctionCallFromISR() function must conform. * xTimerPendFunctionCallFromISR() function must conform.
*/ */
typedef void (* PendedFunction_t)( void *, typedef void (* PendedFunction_t)( void *,
uint32_t ); uint32_t );
/** /**
* TimerHandle_t xTimerCreate( const char * const pcTimerName, * TimerHandle_t xTimerCreate( const char * const pcTimerName,
@ -136,7 +137,7 @@
* *
* @param pxCallbackFunction The function to call when the timer expires. * @param pxCallbackFunction The function to call when the timer expires.
* Callback functions must have the prototype defined by TimerCallbackFunction_t, * Callback functions must have the prototype defined by TimerCallbackFunction_t,
* which is "void vCallbackFunction( TimerHandle_t xTimer );". * which is "void vCallbackFunction( TimerHandle_t xTimer );".
* *
* @return If the timer is successfully created then a handle to the newly * @return If the timer is successfully created then a handle to the newly
* created timer is returned. If the timer cannot be created because there is * created timer is returned. If the timer cannot be created because there is
@ -225,13 +226,13 @@
* } * }
* @endverbatim * @endverbatim
*/ */
#if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) #if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
TimerHandle_t xTimerCreate( const char * const pcTimerName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */ TimerHandle_t xTimerCreate( const char * const pcTimerName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
const TickType_t xTimerPeriodInTicks, const TickType_t xTimerPeriodInTicks,
const UBaseType_t uxAutoReload, const UBaseType_t uxAutoReload,
void * const pvTimerID, void * const pvTimerID,
TimerCallbackFunction_t pxCallbackFunction ) PRIVILEGED_FUNCTION; TimerCallbackFunction_t pxCallbackFunction ) PRIVILEGED_FUNCTION;
#endif #endif
/** /**
* TimerHandle_t xTimerCreateStatic(const char * const pcTimerName, * TimerHandle_t xTimerCreateStatic(const char * const pcTimerName,
@ -239,7 +240,7 @@
* UBaseType_t uxAutoReload, * UBaseType_t uxAutoReload,
* void * pvTimerID, * void * pvTimerID,
* TimerCallbackFunction_t pxCallbackFunction, * TimerCallbackFunction_t pxCallbackFunction,
* StaticTimer_t *pxTimerBuffer ); * StaticTimer_t *pxTimerBuffer );
* *
* Creates a new software timer instance, and returns a handle by which the * Creates a new software timer instance, and returns a handle by which the
* created software timer can be referenced. * created software timer can be referenced.
@ -355,14 +356,14 @@
* } * }
* @endverbatim * @endverbatim
*/ */
#if ( configSUPPORT_STATIC_ALLOCATION == 1 ) #if ( configSUPPORT_STATIC_ALLOCATION == 1 )
TimerHandle_t xTimerCreateStatic( const char * const pcTimerName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */ TimerHandle_t xTimerCreateStatic( const char * const pcTimerName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
const TickType_t xTimerPeriodInTicks, const TickType_t xTimerPeriodInTicks,
const UBaseType_t uxAutoReload, const UBaseType_t uxAutoReload,
void * const pvTimerID, void * const pvTimerID,
TimerCallbackFunction_t pxCallbackFunction, TimerCallbackFunction_t pxCallbackFunction,
StaticTimer_t * pxTimerBuffer ) PRIVILEGED_FUNCTION; StaticTimer_t * pxTimerBuffer ) PRIVILEGED_FUNCTION;
#endif /* configSUPPORT_STATIC_ALLOCATION */ #endif /* configSUPPORT_STATIC_ALLOCATION */
/** /**
* void *pvTimerGetTimerID( TimerHandle_t xTimer ); * void *pvTimerGetTimerID( TimerHandle_t xTimer );
@ -384,7 +385,7 @@
* *
* See the xTimerCreate() API function example usage scenario. * See the xTimerCreate() API function example usage scenario.
*/ */
void * pvTimerGetTimerID( const TimerHandle_t xTimer ) PRIVILEGED_FUNCTION; void * pvTimerGetTimerID( const TimerHandle_t xTimer ) PRIVILEGED_FUNCTION;
/** /**
* void vTimerSetTimerID( TimerHandle_t xTimer, void *pvNewID ); * void vTimerSetTimerID( TimerHandle_t xTimer, void *pvNewID );
@ -405,8 +406,8 @@
* *
* See the xTimerCreate() API function example usage scenario. * See the xTimerCreate() API function example usage scenario.
*/ */
void vTimerSetTimerID( TimerHandle_t xTimer, void vTimerSetTimerID( TimerHandle_t xTimer,
void * pvNewID ) PRIVILEGED_FUNCTION; void * pvNewID ) PRIVILEGED_FUNCTION;
/** /**
* BaseType_t xTimerIsTimerActive( TimerHandle_t xTimer ); * BaseType_t xTimerIsTimerActive( TimerHandle_t xTimer );
@ -443,7 +444,7 @@
* } * }
* @endverbatim * @endverbatim
*/ */
BaseType_t xTimerIsTimerActive( TimerHandle_t xTimer ) PRIVILEGED_FUNCTION; BaseType_t xTimerIsTimerActive( TimerHandle_t xTimer ) PRIVILEGED_FUNCTION;
/** /**
* TaskHandle_t xTimerGetTimerDaemonTaskHandle( void ); * TaskHandle_t xTimerGetTimerDaemonTaskHandle( void );
@ -451,7 +452,7 @@
* Simply returns the handle of the timer service/daemon task. It it not valid * Simply returns the handle of the timer service/daemon task. It it not valid
* to call xTimerGetTimerDaemonTaskHandle() before the scheduler has been started. * to call xTimerGetTimerDaemonTaskHandle() before the scheduler has been started.
*/ */
TaskHandle_t xTimerGetTimerDaemonTaskHandle( void ) PRIVILEGED_FUNCTION; TaskHandle_t xTimerGetTimerDaemonTaskHandle( void ) PRIVILEGED_FUNCTION;
/** /**
* BaseType_t xTimerStart( TimerHandle_t xTimer, TickType_t xTicksToWait ); * BaseType_t xTimerStart( TimerHandle_t xTimer, TickType_t xTicksToWait );
@ -503,7 +504,8 @@
* See the xTimerCreate() API function example usage scenario. * See the xTimerCreate() API function example usage scenario.
* *
*/ */
#define xTimerStart( xTimer, xTicksToWait ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_START, ( xTaskGetTickCount() ), NULL, ( xTicksToWait ) ) #define xTimerStart( xTimer, xTicksToWait ) \
xTimerGenericCommand( ( xTimer ), tmrCOMMAND_START, ( xTaskGetTickCount() ), NULL, ( xTicksToWait ) )
/** /**
* BaseType_t xTimerStop( TimerHandle_t xTimer, TickType_t xTicksToWait ); * BaseType_t xTimerStop( TimerHandle_t xTimer, TickType_t xTicksToWait );
@ -545,12 +547,13 @@
* See the xTimerCreate() API function example usage scenario. * See the xTimerCreate() API function example usage scenario.
* *
*/ */
#define xTimerStop( xTimer, xTicksToWait ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_STOP, 0U, NULL, ( xTicksToWait ) ) #define xTimerStop( xTimer, xTicksToWait ) \
xTimerGenericCommand( ( xTimer ), tmrCOMMAND_STOP, 0U, NULL, ( xTicksToWait ) )
/** /**
* BaseType_t xTimerChangePeriod( TimerHandle_t xTimer, * BaseType_t xTimerChangePeriod( TimerHandle_t xTimer,
* TickType_t xNewPeriod, * TickType_t xNewPeriod,
* TickType_t xTicksToWait ); * TickType_t xTicksToWait );
* *
* Timer functionality is provided by a timer service/daemon task. Many of the * Timer functionality is provided by a timer service/daemon task. Many of the
* public FreeRTOS timer API functions send commands to the timer service task * public FreeRTOS timer API functions send commands to the timer service task
@ -625,7 +628,8 @@
* } * }
* @endverbatim * @endverbatim
*/ */
#define xTimerChangePeriod( xTimer, xNewPeriod, xTicksToWait ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_CHANGE_PERIOD, ( xNewPeriod ), NULL, ( xTicksToWait ) ) #define xTimerChangePeriod( xTimer, xNewPeriod, xTicksToWait ) \
xTimerGenericCommand( ( xTimer ), tmrCOMMAND_CHANGE_PERIOD, ( xNewPeriod ), NULL, ( xTicksToWait ) )
/** /**
* BaseType_t xTimerDelete( TimerHandle_t xTimer, TickType_t xTicksToWait ); * BaseType_t xTimerDelete( TimerHandle_t xTimer, TickType_t xTicksToWait );
@ -663,7 +667,8 @@
* *
* See the xTimerChangePeriod() API function example usage scenario. * See the xTimerChangePeriod() API function example usage scenario.
*/ */
#define xTimerDelete( xTimer, xTicksToWait ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_DELETE, 0U, NULL, ( xTicksToWait ) ) #define xTimerDelete( xTimer, xTicksToWait ) \
xTimerGenericCommand( ( xTimer ), tmrCOMMAND_DELETE, 0U, NULL, ( xTicksToWait ) )
/** /**
* BaseType_t xTimerReset( TimerHandle_t xTimer, TickType_t xTicksToWait ); * BaseType_t xTimerReset( TimerHandle_t xTimer, TickType_t xTicksToWait );
@ -787,11 +792,12 @@
* } * }
* @endverbatim * @endverbatim
*/ */
#define xTimerReset( xTimer, xTicksToWait ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_RESET, ( xTaskGetTickCount() ), NULL, ( xTicksToWait ) ) #define xTimerReset( xTimer, xTicksToWait ) \
xTimerGenericCommand( ( xTimer ), tmrCOMMAND_RESET, ( xTaskGetTickCount() ), NULL, ( xTicksToWait ) )
/** /**
* BaseType_t xTimerStartFromISR( TimerHandle_t xTimer, * BaseType_t xTimerStartFromISR( TimerHandle_t xTimer,
* BaseType_t *pxHigherPriorityTaskWoken ); * BaseType_t *pxHigherPriorityTaskWoken );
* *
* A version of xTimerStart() that can be called from an interrupt service * A version of xTimerStart() that can be called from an interrupt service
* routine. * routine.
@ -873,11 +879,12 @@
* } * }
* @endverbatim * @endverbatim
*/ */
#define xTimerStartFromISR( xTimer, pxHigherPriorityTaskWoken ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_START_FROM_ISR, ( xTaskGetTickCountFromISR() ), ( pxHigherPriorityTaskWoken ), 0U ) #define xTimerStartFromISR( xTimer, pxHigherPriorityTaskWoken ) \
xTimerGenericCommand( ( xTimer ), tmrCOMMAND_START_FROM_ISR, ( xTaskGetTickCountFromISR() ), ( pxHigherPriorityTaskWoken ), 0U )
/** /**
* BaseType_t xTimerStopFromISR( TimerHandle_t xTimer, * BaseType_t xTimerStopFromISR( TimerHandle_t xTimer,
* BaseType_t *pxHigherPriorityTaskWoken ); * BaseType_t *pxHigherPriorityTaskWoken );
* *
* A version of xTimerStop() that can be called from an interrupt service * A version of xTimerStop() that can be called from an interrupt service
* routine. * routine.
@ -936,12 +943,13 @@
* } * }
* @endverbatim * @endverbatim
*/ */
#define xTimerStopFromISR( xTimer, pxHigherPriorityTaskWoken ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_STOP_FROM_ISR, 0, ( pxHigherPriorityTaskWoken ), 0U ) #define xTimerStopFromISR( xTimer, pxHigherPriorityTaskWoken ) \
xTimerGenericCommand( ( xTimer ), tmrCOMMAND_STOP_FROM_ISR, 0, ( pxHigherPriorityTaskWoken ), 0U )
/** /**
* BaseType_t xTimerChangePeriodFromISR( TimerHandle_t xTimer, * BaseType_t xTimerChangePeriodFromISR( TimerHandle_t xTimer,
* TickType_t xNewPeriod, * TickType_t xNewPeriod,
* BaseType_t *pxHigherPriorityTaskWoken ); * BaseType_t *pxHigherPriorityTaskWoken );
* *
* A version of xTimerChangePeriod() that can be called from an interrupt * A version of xTimerChangePeriod() that can be called from an interrupt
* service routine. * service routine.
@ -1009,11 +1017,12 @@
* } * }
* @endverbatim * @endverbatim
*/ */
#define xTimerChangePeriodFromISR( xTimer, xNewPeriod, pxHigherPriorityTaskWoken ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_CHANGE_PERIOD_FROM_ISR, ( xNewPeriod ), ( pxHigherPriorityTaskWoken ), 0U ) #define xTimerChangePeriodFromISR( xTimer, xNewPeriod, pxHigherPriorityTaskWoken ) \
xTimerGenericCommand( ( xTimer ), tmrCOMMAND_CHANGE_PERIOD_FROM_ISR, ( xNewPeriod ), ( pxHigherPriorityTaskWoken ), 0U )
/** /**
* BaseType_t xTimerResetFromISR( TimerHandle_t xTimer, * BaseType_t xTimerResetFromISR( TimerHandle_t xTimer,
* BaseType_t *pxHigherPriorityTaskWoken ); * BaseType_t *pxHigherPriorityTaskWoken );
* *
* A version of xTimerReset() that can be called from an interrupt service * A version of xTimerReset() that can be called from an interrupt service
* routine. * routine.
@ -1095,7 +1104,8 @@
* } * }
* @endverbatim * @endverbatim
*/ */
#define xTimerResetFromISR( xTimer, pxHigherPriorityTaskWoken ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_RESET_FROM_ISR, ( xTaskGetTickCountFromISR() ), ( pxHigherPriorityTaskWoken ), 0U ) #define xTimerResetFromISR( xTimer, pxHigherPriorityTaskWoken ) \
xTimerGenericCommand( ( xTimer ), tmrCOMMAND_RESET_FROM_ISR, ( xTaskGetTickCountFromISR() ), ( pxHigherPriorityTaskWoken ), 0U )
/** /**
@ -1148,48 +1158,48 @@
* Example usage: * Example usage:
* @verbatim * @verbatim
* *
* // The callback function that will execute in the context of the daemon task. * // The callback function that will execute in the context of the daemon task.
* // Note callback functions must all use this same prototype. * // Note callback functions must all use this same prototype.
* void vProcessInterface( void *pvParameter1, uint32_t ulParameter2 ) * void vProcessInterface( void *pvParameter1, uint32_t ulParameter2 )
* { * {
* BaseType_t xInterfaceToService; * BaseType_t xInterfaceToService;
* *
* // The interface that requires servicing is passed in the second * // The interface that requires servicing is passed in the second
* // parameter. The first parameter is not used in this case. * // parameter. The first parameter is not used in this case.
* xInterfaceToService = ( BaseType_t ) ulParameter2; * xInterfaceToService = ( BaseType_t ) ulParameter2;
* *
* // ...Perform the processing here... * // ...Perform the processing here...
* } * }
* *
* // An ISR that receives data packets from multiple interfaces * // An ISR that receives data packets from multiple interfaces
* void vAnISR( void ) * void vAnISR( void )
* { * {
* BaseType_t xInterfaceToService, xHigherPriorityTaskWoken; * BaseType_t xInterfaceToService, xHigherPriorityTaskWoken;
* *
* // Query the hardware to determine which interface needs processing. * // Query the hardware to determine which interface needs processing.
* xInterfaceToService = prvCheckInterfaces(); * xInterfaceToService = prvCheckInterfaces();
* *
* // The actual processing is to be deferred to a task. Request the * // The actual processing is to be deferred to a task. Request the
* // vProcessInterface() callback function is executed, passing in the * // vProcessInterface() callback function is executed, passing in the
* // number of the interface that needs processing. The interface to * // number of the interface that needs processing. The interface to
* // service is passed in the second parameter. The first parameter is * // service is passed in the second parameter. The first parameter is
* // not used in this case. * // not used in this case.
* xHigherPriorityTaskWoken = pdFALSE; * xHigherPriorityTaskWoken = pdFALSE;
* xTimerPendFunctionCallFromISR( vProcessInterface, NULL, ( uint32_t ) xInterfaceToService, &xHigherPriorityTaskWoken ); * xTimerPendFunctionCallFromISR( vProcessInterface, NULL, ( uint32_t ) xInterfaceToService, &xHigherPriorityTaskWoken );
* *
* // If xHigherPriorityTaskWoken is now set to pdTRUE then a context * // If xHigherPriorityTaskWoken is now set to pdTRUE then a context
* // switch should be requested. The macro used is port specific and will * // switch should be requested. The macro used is port specific and will
* // be either portYIELD_FROM_ISR() or portEND_SWITCHING_ISR() - refer to * // be either portYIELD_FROM_ISR() or portEND_SWITCHING_ISR() - refer to
* // the documentation page for the port being used. * // the documentation page for the port being used.
* portYIELD_FROM_ISR( xHigherPriorityTaskWoken ); * portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
* *
* } * }
* @endverbatim * @endverbatim
*/ */
BaseType_t xTimerPendFunctionCallFromISR( PendedFunction_t xFunctionToPend, BaseType_t xTimerPendFunctionCallFromISR( PendedFunction_t xFunctionToPend,
void * pvParameter1, void * pvParameter1,
uint32_t ulParameter2, uint32_t ulParameter2,
BaseType_t * pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION; BaseType_t * pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION;
/** /**
* BaseType_t xTimerPendFunctionCall( PendedFunction_t xFunctionToPend, * BaseType_t xTimerPendFunctionCall( PendedFunction_t xFunctionToPend,
@ -1223,10 +1233,10 @@
* timer daemon task, otherwise pdFALSE is returned. * timer daemon task, otherwise pdFALSE is returned.
* *
*/ */
BaseType_t xTimerPendFunctionCall( PendedFunction_t xFunctionToPend, BaseType_t xTimerPendFunctionCall( PendedFunction_t xFunctionToPend,
void * pvParameter1, void * pvParameter1,
uint32_t ulParameter2, uint32_t ulParameter2,
TickType_t xTicksToWait ) PRIVILEGED_FUNCTION; TickType_t xTicksToWait ) PRIVILEGED_FUNCTION;
/** /**
* const char * const pcTimerGetName( TimerHandle_t xTimer ); * const char * const pcTimerGetName( TimerHandle_t xTimer );
@ -1237,7 +1247,7 @@
* *
* @return The name assigned to the timer specified by the xTimer parameter. * @return The name assigned to the timer specified by the xTimer parameter.
*/ */
const char * pcTimerGetName( TimerHandle_t xTimer ) PRIVILEGED_FUNCTION; /*lint !e971 Unqualified char types are allowed for strings and single characters only. */ const char * pcTimerGetName( TimerHandle_t xTimer ) PRIVILEGED_FUNCTION; /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
/** /**
* void vTimerSetReloadMode( TimerHandle_t xTimer, const UBaseType_t uxAutoReload ); * void vTimerSetReloadMode( TimerHandle_t xTimer, const UBaseType_t uxAutoReload );
@ -1254,8 +1264,8 @@
* uxAutoReload is set to pdFALSE then the timer will be a one-shot timer and * uxAutoReload is set to pdFALSE then the timer will be a one-shot timer and
* enter the dormant state after it expires. * enter the dormant state after it expires.
*/ */
void vTimerSetReloadMode( TimerHandle_t xTimer, void vTimerSetReloadMode( TimerHandle_t xTimer,
const UBaseType_t uxAutoReload ) PRIVILEGED_FUNCTION; const UBaseType_t uxAutoReload ) PRIVILEGED_FUNCTION;
/** /**
* UBaseType_t uxTimerGetReloadMode( TimerHandle_t xTimer ); * UBaseType_t uxTimerGetReloadMode( TimerHandle_t xTimer );
@ -1269,7 +1279,7 @@
* @return If the timer is an auto-reload timer then pdTRUE is returned, otherwise * @return If the timer is an auto-reload timer then pdTRUE is returned, otherwise
* pdFALSE is returned. * pdFALSE is returned.
*/ */
UBaseType_t uxTimerGetReloadMode( TimerHandle_t xTimer ) PRIVILEGED_FUNCTION; UBaseType_t uxTimerGetReloadMode( TimerHandle_t xTimer ) PRIVILEGED_FUNCTION;
/** /**
* TickType_t xTimerGetPeriod( TimerHandle_t xTimer ); * TickType_t xTimerGetPeriod( TimerHandle_t xTimer );
@ -1280,7 +1290,7 @@
* *
* @return The period of the timer in ticks. * @return The period of the timer in ticks.
*/ */
TickType_t xTimerGetPeriod( TimerHandle_t xTimer ) PRIVILEGED_FUNCTION; TickType_t xTimerGetPeriod( TimerHandle_t xTimer ) PRIVILEGED_FUNCTION;
/** /**
* TickType_t xTimerGetExpiryTime( TimerHandle_t xTimer ); * TickType_t xTimerGetExpiryTime( TimerHandle_t xTimer );
@ -1295,26 +1305,47 @@
* will next expire is returned. If the timer is not running then the return * will next expire is returned. If the timer is not running then the return
* value is undefined. * value is undefined.
*/ */
TickType_t xTimerGetExpiryTime( TimerHandle_t xTimer ) PRIVILEGED_FUNCTION; TickType_t xTimerGetExpiryTime( TimerHandle_t xTimer ) PRIVILEGED_FUNCTION;
/* /*
* Functions beyond this part are not part of the public API and are intended * Functions beyond this part are not part of the public API and are intended
* for use by the kernel only. * for use by the kernel only.
*/ */
BaseType_t xTimerCreateTimerTask( void ) PRIVILEGED_FUNCTION; BaseType_t xTimerCreateTimerTask( void ) PRIVILEGED_FUNCTION;
BaseType_t xTimerGenericCommand( TimerHandle_t xTimer, BaseType_t xTimerGenericCommand( TimerHandle_t xTimer,
const BaseType_t xCommandID, const BaseType_t xCommandID,
const TickType_t xOptionalValue, const TickType_t xOptionalValue,
BaseType_t * const pxHigherPriorityTaskWoken, BaseType_t * const pxHigherPriorityTaskWoken,
const TickType_t xTicksToWait ) PRIVILEGED_FUNCTION; const TickType_t xTicksToWait ) PRIVILEGED_FUNCTION;
#if ( configUSE_TRACE_FACILITY == 1 ) #if ( configUSE_TRACE_FACILITY == 1 )
void vTimerSetTimerNumber( TimerHandle_t xTimer, void vTimerSetTimerNumber( TimerHandle_t xTimer,
UBaseType_t uxTimerNumber ) PRIVILEGED_FUNCTION; UBaseType_t uxTimerNumber ) PRIVILEGED_FUNCTION;
UBaseType_t uxTimerGetTimerNumber( TimerHandle_t xTimer ) PRIVILEGED_FUNCTION; UBaseType_t uxTimerGetTimerNumber( TimerHandle_t xTimer ) PRIVILEGED_FUNCTION;
#endif #endif
#ifdef __cplusplus #if ( configSUPPORT_STATIC_ALLOCATION == 1 )
}
#endif /**
* task.h
* <pre>void vApplicationGetTimerTaskMemory( StaticTask_t ** ppxTimerTaskTCBBuffer, StackType_t ** ppxTimerTaskStackBuffer, uint32_t *pulTimerTaskStackSize ) </pre>
*
* This function is used to provide a statically allocated block of memory to FreeRTOS to hold the Timer Task TCB. This function is required when
* configSUPPORT_STATIC_ALLOCATION is set. For more information see this URI: https://www.freertos.org/a00110.html#configSUPPORT_STATIC_ALLOCATION
*
* @param ppxTimerTaskTCBBuffer A handle to a statically allocated TCB buffer
* @param ppxTimerTaskStackBuffer A handle to a statically allocated Stack buffer for thie idle task
* @param pulTimerTaskStackSize A pointer to the number of elements that will fit in the allocated stack buffer
*/
void vApplicationGetTimerTaskMemory( StaticTask_t ** ppxTimerTaskTCBBuffer,
StackType_t ** ppxTimerTaskStackBuffer,
uint32_t * pulTimerTaskStackSize );
#endif
/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif /* TIMERS_H */ #endif /* TIMERS_H */

17
list.c
View file

@ -19,17 +19,28 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
#include <stdlib.h> #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 "FreeRTOS.h"
#include "list.h" #include "list.h"
/* Lint e9021, e961 and e750 are suppressed as a MISRA exception justified
* because the MPU ports require MPU_WRAPPERS_INCLUDED_FROM_API_FILE to be
* defined for the header files above, but not in this file, in order to
* generate the correct privileged Vs unprivileged linkage and placement. */
#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE /*lint !e961 !e750 !e9021. */
/*----------------------------------------------------------- /*-----------------------------------------------------------
* PUBLIC LIST API documented in list.h * PUBLIC LIST API documented in list.h
*----------------------------------------------------------*/ *----------------------------------------------------------*/

4
portable/ARMv8M/copy_files.py
View file

@ -19,8 +19,8 @@
# * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN # * 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. # * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
# * # *
# * http://www.FreeRTOS.org # * https://www.FreeRTOS.org
# * http://aws.amazon.com/freertos # * https://github.com/FreeRTOS
# * # *
# * 1 tab == 4 spaces! # * 1 tab == 4 spaces!
# */ # */

135
portable/ARMv8M/non_secure/port.c
View file

@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining /* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining
@ -55,13 +54,13 @@
* on the secure side. The following are the valid configuration seetings: * on the secure side. The following are the valid configuration seetings:
* *
* 1. Run FreeRTOS on the Secure Side: * 1. Run FreeRTOS on the Secure Side:
* configRUN_FREERTOS_SECURE_ONLY = 1 and configENABLE_TRUSTZONE = 0 * configRUN_FREERTOS_SECURE_ONLY = 1 and configENABLE_TRUSTZONE = 0
* *
* 2. Run FreeRTOS on the Non-Secure Side with Secure Side function call support: * 2. Run FreeRTOS on the Non-Secure Side with Secure Side function call support:
* configRUN_FREERTOS_SECURE_ONLY = 0 and configENABLE_TRUSTZONE = 1 * configRUN_FREERTOS_SECURE_ONLY = 0 and configENABLE_TRUSTZONE = 1
* *
* 3. Run FreeRTOS on the Non-Secure Side only i.e. no Secure Side function call support: * 3. Run FreeRTOS on the Non-Secure Side only i.e. no Secure Side function call support:
* configRUN_FREERTOS_SECURE_ONLY = 0 and configENABLE_TRUSTZONE = 0 * configRUN_FREERTOS_SECURE_ONLY = 0 and configENABLE_TRUSTZONE = 0
*/ */
#if ( ( configRUN_FREERTOS_SECURE_ONLY == 1 ) && ( configENABLE_TRUSTZONE == 1 ) ) #if ( ( configRUN_FREERTOS_SECURE_ONLY == 1 ) && ( configENABLE_TRUSTZONE == 1 ) )
#error TrustZone needs to be disabled in order to run FreeRTOS on the Secure Side. #error TrustZone needs to be disabled in order to run FreeRTOS on the Secure Side.
@ -74,7 +73,7 @@
#define portNVIC_SYSTICK_CTRL_REG ( *( ( volatile uint32_t * ) 0xe000e010 ) ) #define portNVIC_SYSTICK_CTRL_REG ( *( ( volatile uint32_t * ) 0xe000e010 ) )
#define portNVIC_SYSTICK_LOAD_REG ( *( ( volatile uint32_t * ) 0xe000e014 ) ) #define portNVIC_SYSTICK_LOAD_REG ( *( ( volatile uint32_t * ) 0xe000e014 ) )
#define portNVIC_SYSTICK_CURRENT_VALUE_REG ( *( ( volatile uint32_t * ) 0xe000e018 ) ) #define portNVIC_SYSTICK_CURRENT_VALUE_REG ( *( ( volatile uint32_t * ) 0xe000e018 ) )
#define portNVIC_SYSPRI2_REG ( *( ( volatile uint32_t * ) 0xe000ed20 ) ) #define portNVIC_SHPR3_REG ( *( ( volatile uint32_t * ) 0xe000ed20 ) )
#define portNVIC_SYSTICK_ENABLE_BIT ( 1UL << 0UL ) #define portNVIC_SYSTICK_ENABLE_BIT ( 1UL << 0UL )
#define portNVIC_SYSTICK_INT_BIT ( 1UL << 1UL ) #define portNVIC_SYSTICK_INT_BIT ( 1UL << 1UL )
#define portNVIC_SYSTICK_COUNT_FLAG_BIT ( 1UL << 16UL ) #define portNVIC_SYSTICK_COUNT_FLAG_BIT ( 1UL << 16UL )
@ -350,7 +349,7 @@ portDONT_DISCARD void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) PRIV
* @brief Each task maintains its own interrupt status in the critical nesting * @brief Each task maintains its own interrupt status in the critical nesting
* variable. * variable.
*/ */
static volatile uint32_t ulCriticalNesting = 0xaaaaaaaaUL; PRIVILEGED_DATA static volatile uint32_t ulCriticalNesting = 0xaaaaaaaaUL;
#if ( configENABLE_TRUSTZONE == 1 ) #if ( configENABLE_TRUSTZONE == 1 )
@ -358,7 +357,7 @@ static volatile uint32_t ulCriticalNesting = 0xaaaaaaaaUL;
* @brief Saved as part of the task context to indicate which context the * @brief Saved as part of the task context to indicate which context the
* task is using on the secure side. * task is using on the secure side.
*/ */
portDONT_DISCARD volatile SecureContextHandle_t xSecureContext = portNO_SECURE_CONTEXT; PRIVILEGED_DATA portDONT_DISCARD volatile SecureContextHandle_t xSecureContext = portNO_SECURE_CONTEXT;
#endif /* configENABLE_TRUSTZONE */ #endif /* configENABLE_TRUSTZONE */
#if ( configUSE_TICKLESS_IDLE == 1 ) #if ( configUSE_TICKLESS_IDLE == 1 )
@ -366,19 +365,19 @@ static volatile uint32_t ulCriticalNesting = 0xaaaaaaaaUL;
/** /**
* @brief The number of SysTick increments that make up one tick period. * @brief The number of SysTick increments that make up one tick period.
*/ */
static uint32_t ulTimerCountsForOneTick = 0; PRIVILEGED_DATA static uint32_t ulTimerCountsForOneTick = 0;
/** /**
* @brief The maximum number of tick periods that can be suppressed is * @brief The maximum number of tick periods that can be suppressed is
* limited by the 24 bit resolution of the SysTick timer. * limited by the 24 bit resolution of the SysTick timer.
*/ */
static uint32_t xMaximumPossibleSuppressedTicks = 0; PRIVILEGED_DATA static uint32_t xMaximumPossibleSuppressedTicks = 0;
/** /**
* @brief Compensate for the CPU cycles that pass while the SysTick is * @brief Compensate for the CPU cycles that pass while the SysTick is
* stopped (low power functionality only). * stopped (low power functionality only).
*/ */
static uint32_t ulStoppedTimerCompensation = 0; PRIVILEGED_DATA static uint32_t ulStoppedTimerCompensation = 0;
#endif /* configUSE_TICKLESS_IDLE */ #endif /* configUSE_TICKLESS_IDLE */
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -567,7 +566,7 @@ __attribute__( ( weak ) ) void vPortSetupTimerInterrupt( void ) /* PRIVILEGED_FU
portNVIC_SYSTICK_CURRENT_VALUE_REG = 0UL; portNVIC_SYSTICK_CURRENT_VALUE_REG = 0UL;
/* Configure SysTick to interrupt at the requested rate. */ /* Configure SysTick to interrupt at the requested rate. */
portNVIC_SYSTICK_LOAD_REG = ( configCPU_CLOCK_HZ / configTICK_RATE_HZ ) - 1UL; portNVIC_SYSTICK_LOAD_REG = ( configSYSTICK_CLOCK_HZ / configTICK_RATE_HZ ) - 1UL;
portNVIC_SYSTICK_CTRL_REG = portNVIC_SYSTICK_CLK_BIT | portNVIC_SYSTICK_INT_BIT | portNVIC_SYSTICK_ENABLE_BIT; portNVIC_SYSTICK_CTRL_REG = portNVIC_SYSTICK_CLK_BIT | portNVIC_SYSTICK_INT_BIT | portNVIC_SYSTICK_ENABLE_BIT;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -612,7 +611,7 @@ static void prvTaskExitError( void )
extern uint32_t * __unprivileged_flash_end__; extern uint32_t * __unprivileged_flash_end__;
extern uint32_t * __privileged_sram_start__; extern uint32_t * __privileged_sram_start__;
extern uint32_t * __privileged_sram_end__; extern uint32_t * __privileged_sram_end__;
#else /* if defined( __ARMCC_VERSION ) */ #else /* if defined( __ARMCC_VERSION ) */
/* Declaration when these variable are exported from linker scripts. */ /* Declaration when these variable are exported from linker scripts. */
extern uint32_t __privileged_functions_start__[]; extern uint32_t __privileged_functions_start__[];
extern uint32_t __privileged_functions_end__[]; extern uint32_t __privileged_functions_end__[];
@ -802,22 +801,22 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
ulR0 = pulCallerStackAddress[ 0 ]; ulR0 = pulCallerStackAddress[ 0 ];
#if ( configENABLE_MPU == 1 ) #if ( configENABLE_MPU == 1 )
{ {
/* Read the CONTROL register value. */ /* Read the CONTROL register value. */
__asm volatile ( "mrs %0, control" : "=r" ( ulControl ) ); __asm volatile ( "mrs %0, control" : "=r" ( ulControl ) );
/* The task that raised the SVC is privileged if Bit[0] /* The task that raised the SVC is privileged if Bit[0]
* in the CONTROL register is 0. */ * in the CONTROL register is 0. */
ulIsTaskPrivileged = ( ( ulControl & portCONTROL_PRIVILEGED_MASK ) == 0 ); ulIsTaskPrivileged = ( ( ulControl & portCONTROL_PRIVILEGED_MASK ) == 0 );
/* Allocate and load a context for the secure task. */ /* Allocate and load a context for the secure task. */
xSecureContext = SecureContext_AllocateContext( ulR0, ulIsTaskPrivileged ); xSecureContext = SecureContext_AllocateContext( ulR0, ulIsTaskPrivileged );
} }
#else /* if ( configENABLE_MPU == 1 ) */ #else /* if ( configENABLE_MPU == 1 ) */
{ {
/* Allocate and load a context for the secure task. */ /* Allocate and load a context for the secure task. */
xSecureContext = SecureContext_AllocateContext( ulR0 ); xSecureContext = SecureContext_AllocateContext( ulR0 );
} }
#endif /* configENABLE_MPU */ #endif /* configENABLE_MPU */
configASSERT( xSecureContext != NULL ); configASSERT( xSecureContext != NULL );
@ -835,21 +834,21 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
case portSVC_START_SCHEDULER: case portSVC_START_SCHEDULER:
#if ( configENABLE_TRUSTZONE == 1 ) #if ( configENABLE_TRUSTZONE == 1 )
{ {
/* De-prioritize the non-secure exceptions so that the /* De-prioritize the non-secure exceptions so that the
* non-secure pendSV runs at the lowest priority. */ * non-secure pendSV runs at the lowest priority. */
SecureInit_DePrioritizeNSExceptions(); SecureInit_DePrioritizeNSExceptions();
/* Initialize the secure context management system. */ /* Initialize the secure context management system. */
SecureContext_Init(); SecureContext_Init();
} }
#endif /* configENABLE_TRUSTZONE */ #endif /* configENABLE_TRUSTZONE */
#if ( configENABLE_FPU == 1 ) #if ( configENABLE_FPU == 1 )
{ {
/* Setup the Floating Point Unit (FPU). */ /* Setup the Floating Point Unit (FPU). */
prvSetupFPU(); prvSetupFPU();
} }
#endif /* configENABLE_FPU */ #endif /* configENABLE_FPU */
/* Setup the context of the first task so that the first task starts /* Setup the context of the first task so that the first task starts
@ -876,19 +875,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
} }
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* *INDENT-OFF* */
#if ( configENABLE_MPU == 1 ) #if ( configENABLE_MPU == 1 )
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
StackType_t * pxEndOfStack, StackType_t * pxEndOfStack,
TaskFunction_t pxCode, TaskFunction_t pxCode,
void * pvParameters, void * pvParameters,
BaseType_t xRunPrivileged ) /* PRIVILEGED_FUNCTION */ BaseType_t xRunPrivileged ) /* PRIVILEGED_FUNCTION */
#else #else
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
StackType_t * pxEndOfStack, StackType_t * pxEndOfStack,
TaskFunction_t pxCode, TaskFunction_t pxCode,
void * pvParameters ) /* PRIVILEGED_FUNCTION */ void * pvParameters ) /* PRIVILEGED_FUNCTION */
#endif /* configENABLE_MPU */ #endif /* configENABLE_MPU */
/* *INDENT-ON* */
{ {
/* Simulate the stack frame as it would be created by a context switch /* Simulate the stack frame as it would be created by a context switch
* interrupt. */ * interrupt. */
@ -1001,8 +1001,8 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
BaseType_t xPortStartScheduler( void ) /* PRIVILEGED_FUNCTION */ BaseType_t xPortStartScheduler( void ) /* PRIVILEGED_FUNCTION */
{ {
/* Make PendSV, CallSV and SysTick the same priority as the kernel. */ /* Make PendSV, CallSV and SysTick the same priority as the kernel. */
portNVIC_SYSPRI2_REG |= portNVIC_PENDSV_PRI; portNVIC_SHPR3_REG |= portNVIC_PENDSV_PRI;
portNVIC_SYSPRI2_REG |= portNVIC_SYSTICK_PRI; portNVIC_SHPR3_REG |= portNVIC_SYSTICK_PRI;
#if ( configENABLE_MPU == 1 ) #if ( configENABLE_MPU == 1 )
{ {
@ -1052,6 +1052,18 @@ void vPortEndScheduler( void ) /* PRIVILEGED_FUNCTION */
uint32_t ulRegionStartAddress, ulRegionEndAddress, ulRegionNumber; uint32_t ulRegionStartAddress, ulRegionEndAddress, ulRegionNumber;
int32_t lIndex = 0; int32_t lIndex = 0;
#if defined( __ARMCC_VERSION )
/* Declaration when these variable are defined in code instead of being
* exported from linker scripts. */
extern uint32_t * __privileged_sram_start__;
extern uint32_t * __privileged_sram_end__;
#else
/* Declaration when these variable are exported from linker scripts. */
extern uint32_t __privileged_sram_start__[];
extern uint32_t __privileged_sram_end__[];
#endif /* defined( __ARMCC_VERSION ) */
/* Setup MAIR0. */ /* Setup MAIR0. */
xMPUSettings->ulMAIR0 = ( ( portMPU_NORMAL_MEMORY_BUFFERABLE_CACHEABLE << portMPU_MAIR_ATTR0_POS ) & portMPU_MAIR_ATTR0_MASK ); xMPUSettings->ulMAIR0 = ( ( portMPU_NORMAL_MEMORY_BUFFERABLE_CACHEABLE << portMPU_MAIR_ATTR0_POS ) & portMPU_MAIR_ATTR0_MASK );
xMPUSettings->ulMAIR0 |= ( ( portMPU_DEVICE_MEMORY_nGnRE << portMPU_MAIR_ATTR1_POS ) & portMPU_MAIR_ATTR1_MASK ); xMPUSettings->ulMAIR0 |= ( ( portMPU_DEVICE_MEMORY_nGnRE << portMPU_MAIR_ATTR1_POS ) & portMPU_MAIR_ATTR1_MASK );
@ -1062,19 +1074,34 @@ void vPortEndScheduler( void ) /* PRIVILEGED_FUNCTION */
* the stack region has already been configured. */ * the stack region has already been configured. */
if( ulStackDepth > 0 ) if( ulStackDepth > 0 )
{ {
/* Define the region that allows access to the stack. */ ulRegionStartAddress = ( uint32_t ) pxBottomOfStack;
ulRegionStartAddress = ( ( uint32_t ) pxBottomOfStack ) & portMPU_RBAR_ADDRESS_MASK;
ulRegionEndAddress = ( uint32_t ) pxBottomOfStack + ( ulStackDepth * ( uint32_t ) sizeof( StackType_t ) ) - 1; ulRegionEndAddress = ( uint32_t ) pxBottomOfStack + ( ulStackDepth * ( uint32_t ) sizeof( StackType_t ) ) - 1;
ulRegionEndAddress &= portMPU_RLAR_ADDRESS_MASK;
xMPUSettings->xRegionsSettings[ 0 ].ulRBAR = ( ulRegionStartAddress ) | /* If the stack is within the privileged SRAM, do not protect it
( portMPU_REGION_NON_SHAREABLE ) | * using a separate MPU region. This is needed because privileged
( portMPU_REGION_READ_WRITE ) | * SRAM is already protected using an MPU region and ARMv8-M does
( portMPU_REGION_EXECUTE_NEVER ); * not allow overlapping MPU regions. */
if( ( ulRegionStartAddress >= ( uint32_t ) __privileged_sram_start__ ) &&
( ulRegionEndAddress <= ( uint32_t ) __privileged_sram_end__ ) )
{
xMPUSettings->xRegionsSettings[ 0 ].ulRBAR = 0;
xMPUSettings->xRegionsSettings[ 0 ].ulRLAR = 0;
}
else
{
/* Define the region that allows access to the stack. */
ulRegionStartAddress &= portMPU_RBAR_ADDRESS_MASK;
ulRegionEndAddress &= portMPU_RLAR_ADDRESS_MASK;
xMPUSettings->xRegionsSettings[ 0 ].ulRLAR = ( ulRegionEndAddress ) | xMPUSettings->xRegionsSettings[ 0 ].ulRBAR = ( ulRegionStartAddress ) |
( portMPU_RLAR_ATTR_INDEX0 ) | ( portMPU_REGION_NON_SHAREABLE ) |
( portMPU_RLAR_REGION_ENABLE ); ( portMPU_REGION_READ_WRITE ) |
( portMPU_REGION_EXECUTE_NEVER );
xMPUSettings->xRegionsSettings[ 0 ].ulRLAR = ( ulRegionEndAddress ) |
( portMPU_RLAR_ATTR_INDEX0 ) |
( portMPU_RLAR_REGION_ENABLE );
}
} }
/* User supplied configurable regions. */ /* User supplied configurable regions. */

4
portable/ARMv8M/non_secure/portable/GCC/ARM_CM23/portasm.c
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@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/GCC/ARM_CM23/portmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/GCC/ARM_CM23_NTZ/portasm.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/GCC/ARM_CM23_NTZ/portmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/GCC/ARM_CM33/portasm.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/GCC/ARM_CM33/portmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/GCC/ARM_CM33_NTZ/portasm.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/GCC/ARM_CM33_NTZ/portmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/IAR/ARM_CM23/portasm.s
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/IAR/ARM_CM23/portmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/IAR/ARM_CM23_NTZ/portasm.s
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/IAR/ARM_CM23_NTZ/portmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/IAR/ARM_CM33/portasm.s
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/IAR/ARM_CM33/portmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/IAR/ARM_CM33_NTZ/portasm.s
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portable/IAR/ARM_CM33_NTZ/portmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/non_secure/portasm.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/secure/context/portable/GCC/ARM_CM23/secure_context_port.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/secure/context/portable/GCC/ARM_CM33/secure_context_port.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/secure/context/portable/IAR/ARM_CM23/secure_context_port.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/secure/context/portable/IAR/ARM_CM23/secure_context_port_asm.s
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/secure/context/portable/IAR/ARM_CM33/secure_context_port.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/secure/context/portable/IAR/ARM_CM33/secure_context_port_asm.s
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/secure/context/secure_context.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/secure/context/secure_context.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/secure/heap/secure_heap.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/secure/heap/secure_heap.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/secure/init/secure_init.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/secure/init/secure_init.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

4
portable/ARMv8M/secure/macros/secure_port_macros.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

260
portable/BCC/16BitDOS/Flsh186/port.c
View file

@ -19,29 +19,29 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
/* /*
* Changes from V1.00: Changes from V1.00:
*
+ Call to taskYIELD() from within tick ISR has been replaced by the more + Call to taskYIELD() from within tick ISR has been replaced by the more
+ efficient portSWITCH_CONTEXT(). efficient portSWITCH_CONTEXT().
+ ISR function definitions renamed to include the prv prefix. + ISR function definitions renamed to include the prv prefix.
+
+ Changes from V2.6.1 Changes from V2.6.1
+
+ Replaced the sUsingPreemption variable with the configUSE_PREEMPTION + Replaced the sUsingPreemption variable with the configUSE_PREEMPTION
+ macro to be consistent with the later ports. macro to be consistent with the later ports.
*/ */
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Implementation of functions defined in portable.h for the Flashlite 186 * Implementation of functions defined in portable.h for the Flashlite 186
* port. * port.
*----------------------------------------------------------*/ *----------------------------------------------------------*/
#include <dos.h> #include <dos.h>
#include <stdlib.h> #include <stdlib.h>
@ -53,13 +53,13 @@
/*lint -e950 Non ANSI reserved words okay in this file only. */ /*lint -e950 Non ANSI reserved words okay in this file only. */
#define portTIMER_EOI_TYPE ( 8 ) #define portTIMER_EOI_TYPE ( 8 )
#define portRESET_PIC() portOUTPUT_WORD( ( uint16_t ) 0xff22, portTIMER_EOI_TYPE ) #define portRESET_PIC() portOUTPUT_WORD( ( uint16_t ) 0xff22, portTIMER_EOI_TYPE )
#define portTIMER_INT_NUMBER 0x12 #define portTIMER_INT_NUMBER 0x12
#define portTIMER_1_CONTROL_REGISTER ( ( uint16_t ) 0xff5e ) #define portTIMER_1_CONTROL_REGISTER ( ( uint16_t ) 0xff5e )
#define portTIMER_0_CONTROL_REGISTER ( ( uint16_t ) 0xff56 ) #define portTIMER_0_CONTROL_REGISTER ( ( uint16_t ) 0xff56 )
#define portTIMER_INTERRUPT_ENABLE ( ( uint16_t ) 0x2000 ) #define portTIMER_INTERRUPT_ENABLE ( ( uint16_t ) 0x2000 )
/* Setup the hardware to generate the required tick frequency. */ /* Setup the hardware to generate the required tick frequency. */
static void prvSetTickFrequency( uint32_t ulTickRateHz ); static void prvSetTickFrequency( uint32_t ulTickRateHz );
@ -68,17 +68,15 @@ static void prvSetTickFrequency( uint32_t ulTickRateHz );
static void prvExitFunction( void ); static void prvExitFunction( void );
/* The ISR used depends on whether the preemptive or cooperative scheduler /* The ISR used depends on whether the preemptive or cooperative scheduler
* is being used. */ is being used. */
#if ( configUSE_PREEMPTION == 1 ) #if( configUSE_PREEMPTION == 1 )
/* Tick service routine used by the scheduler when preemptive scheduling is
/* Tick service routine used by the scheduler when preemptive scheduling is being used. */
* being used. */ static void __interrupt __far prvPreemptiveTick( void );
static void __interrupt __far prvPreemptiveTick( void );
#else #else
/* Tick service routine used by the scheduler when cooperative scheduling is
/* Tick service routine used by the scheduler when cooperative scheduling is being used. */
* being used. */ static void __interrupt __far prvNonPreemptiveTick( void );
static void __interrupt __far prvNonPreemptiveTick( void );
#endif #endif
/* Trap routine used by taskYIELD() to manually cause a context switch. */ /* Trap routine used by taskYIELD() to manually cause a context switch. */
@ -90,9 +88,9 @@ static void __interrupt __far prvYieldProcessor( void );
static BaseType_t xSchedulerRunning = pdFALSE; static BaseType_t xSchedulerRunning = pdFALSE;
/* Points to the original routine installed on the vector we use for manual /* Points to the original routine installed on the vector we use for manual
* context switches. This is then used to restore the original routine during context switches. This is then used to restore the original routine during
* prvExitFunction(). */ prvExitFunction(). */
static void( __interrupt __far * pxOldSwitchISR )(); static void ( __interrupt __far *pxOldSwitchISR )();
/* Used to restore the original DOS context when the scheduler is ended. */ /* Used to restore the original DOS context when the scheduler is ended. */
static jmp_buf xJumpBuf; static jmp_buf xJumpBuf;
@ -102,145 +100,145 @@ static jmp_buf xJumpBuf;
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
BaseType_t xPortStartScheduler( void ) BaseType_t xPortStartScheduler( void )
{ {
/* This is called with interrupts already disabled. */ /* This is called with interrupts already disabled. */
/* Remember what was on the interrupts we are going to use /* Remember what was on the interrupts we are going to use
* so we can put them back later if required. */ so we can put them back later if required. */
pxOldSwitchISR = _dos_getvect( portSWITCH_INT_NUMBER ); pxOldSwitchISR = _dos_getvect( portSWITCH_INT_NUMBER );
/* Put our manual switch (yield) function on a known /* Put our manual switch (yield) function on a known
* vector. */ vector. */
_dos_setvect( portSWITCH_INT_NUMBER, prvYieldProcessor ); _dos_setvect( portSWITCH_INT_NUMBER, prvYieldProcessor );
#if ( configUSE_PREEMPTION == 1 ) #if( configUSE_PREEMPTION == 1 )
{ {
/* Put our tick switch function on the timer interrupt. */ /* Put our tick switch function on the timer interrupt. */
_dos_setvect( portTIMER_INT_NUMBER, prvPreemptiveTick ); _dos_setvect( portTIMER_INT_NUMBER, prvPreemptiveTick );
} }
#else #else
{ {
/* We want the timer interrupt to just increment the tick count. */ /* We want the timer interrupt to just increment the tick count. */
_dos_setvect( portTIMER_INT_NUMBER, prvNonPreemptiveTick ); _dos_setvect( portTIMER_INT_NUMBER, prvNonPreemptiveTick );
} }
#endif #endif
prvSetTickFrequency( configTICK_RATE_HZ ); prvSetTickFrequency( configTICK_RATE_HZ );
/* Clean up function if we want to return to DOS. */ /* Clean up function if we want to return to DOS. */
if( setjmp( xJumpBuf ) != 0 ) if( setjmp( xJumpBuf ) != 0 )
{ {
prvExitFunction(); prvExitFunction();
xSchedulerRunning = pdFALSE; xSchedulerRunning = pdFALSE;
} }
else else
{ {
xSchedulerRunning = pdTRUE; xSchedulerRunning = pdTRUE;
/* Kick off the scheduler by setting up the context of the first task. */ /* Kick off the scheduler by setting up the context of the first task. */
portFIRST_CONTEXT(); portFIRST_CONTEXT();
} }
return xSchedulerRunning; return xSchedulerRunning;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* The ISR used depends on whether the preemptive or cooperative scheduler /* The ISR used depends on whether the preemptive or cooperative scheduler
* is being used. */ is being used. */
#if ( configUSE_PREEMPTION == 1 ) #if( configUSE_PREEMPTION == 1 )
static void __interrupt __far prvPreemptiveTick( void ) static void __interrupt __far prvPreemptiveTick( void )
{ {
/* Get the scheduler to update the task states following the tick. */ /* Get the scheduler to update the task states following the tick. */
if( xTaskIncrementTick() != pdFALSE ) if( xTaskIncrementTick() != pdFALSE )
{ {
/* Switch in the context of the next task to be run. */ /* Switch in the context of the next task to be run. */
portSWITCH_CONTEXT(); portSWITCH_CONTEXT();
} }
/* Reset the PIC ready for the next time. */ /* Reset the PIC ready for the next time. */
portRESET_PIC(); portRESET_PIC();
} }
#else /* if ( configUSE_PREEMPTION == 1 ) */ #else
static void __interrupt __far prvNonPreemptiveTick( void ) static void __interrupt __far prvNonPreemptiveTick( void )
{ {
/* Same as preemptive tick, but the cooperative scheduler is being used /* Same as preemptive tick, but the cooperative scheduler is being used
* so we don't have to switch in the context of the next task. */ so we don't have to switch in the context of the next task. */
xTaskIncrementTick(); xTaskIncrementTick();
portRESET_PIC(); portRESET_PIC();
} }
#endif /* if ( configUSE_PREEMPTION == 1 ) */ #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
static void __interrupt __far prvYieldProcessor( void ) static void __interrupt __far prvYieldProcessor( void )
{ {
/* Switch in the context of the next task to be run. */ /* Switch in the context of the next task to be run. */
portSWITCH_CONTEXT(); portSWITCH_CONTEXT();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortEndScheduler( void ) void vPortEndScheduler( void )
{ {
/* Jump back to the processor state prior to starting the /* Jump back to the processor state prior to starting the
* scheduler. This means we are not going to be using a scheduler. This means we are not going to be using a
* task stack frame so the task can be deleted. */ task stack frame so the task can be deleted. */
longjmp( xJumpBuf, 1 ); longjmp( xJumpBuf, 1 );
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
static void prvExitFunction( void ) static void prvExitFunction( void )
{ {
const uint16_t usTimerDisable = 0x0000; const uint16_t usTimerDisable = 0x0000;
uint16_t usTimer0Control; uint16_t usTimer0Control;
/* Interrupts should be disabled here anyway - but no /* Interrupts should be disabled here anyway - but no
* harm in making sure. */ harm in making sure. */
portDISABLE_INTERRUPTS(); portDISABLE_INTERRUPTS();
if( xSchedulerRunning == pdTRUE )
{
/* Put back the switch interrupt routines that was in place
before the scheduler started. */
_dos_setvect( portSWITCH_INT_NUMBER, pxOldSwitchISR );
}
if( xSchedulerRunning == pdTRUE ) /* Disable the timer used for the tick to ensure the scheduler is
{ not called before restoring interrupts. There was previously nothing
/* Put back the switch interrupt routines that was in place on this timer so there is no old ISR to restore. */
* before the scheduler started. */ portOUTPUT_WORD( portTIMER_1_CONTROL_REGISTER, usTimerDisable );
_dos_setvect( portSWITCH_INT_NUMBER, pxOldSwitchISR );
}
/* Disable the timer used for the tick to ensure the scheduler is /* Restart the DOS tick. */
* not called before restoring interrupts. There was previously nothing usTimer0Control = portINPUT_WORD( portTIMER_0_CONTROL_REGISTER );
* on this timer so there is no old ISR to restore. */ usTimer0Control |= portTIMER_INTERRUPT_ENABLE;
portOUTPUT_WORD( portTIMER_1_CONTROL_REGISTER, usTimerDisable ); portOUTPUT_WORD( portTIMER_0_CONTROL_REGISTER, usTimer0Control );
/* Restart the DOS tick. */
usTimer0Control = portINPUT_WORD( portTIMER_0_CONTROL_REGISTER );
usTimer0Control |= portTIMER_INTERRUPT_ENABLE;
portOUTPUT_WORD( portTIMER_0_CONTROL_REGISTER, usTimer0Control );
portENABLE_INTERRUPTS(); portENABLE_INTERRUPTS();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
static void prvSetTickFrequency( uint32_t ulTickRateHz ) static void prvSetTickFrequency( uint32_t ulTickRateHz )
{ {
const uint16_t usMaxCountRegister = 0xff5a; const uint16_t usMaxCountRegister = 0xff5a;
const uint16_t usTimerPriorityRegister = 0xff32; const uint16_t usTimerPriorityRegister = 0xff32;
const uint16_t usTimerEnable = 0xC000; const uint16_t usTimerEnable = 0xC000;
const uint16_t usRetrigger = 0x0001; const uint16_t usRetrigger = 0x0001;
const uint16_t usTimerHighPriority = 0x0000; const uint16_t usTimerHighPriority = 0x0000;
uint16_t usTimer0Control; uint16_t usTimer0Control;
/* ( CPU frequency / 4 ) / clock 2 max count [inpw( 0xff62 ) = 7] */ /* ( CPU frequency / 4 ) / clock 2 max count [inpw( 0xff62 ) = 7] */
const uint32_t ulClockFrequency = ( uint32_t ) 0x7f31a0UL; const uint32_t ulClockFrequency = ( uint32_t ) 0x7f31a0UL;
uint32_t ulTimerCount = ulClockFrequency / ulTickRateHz; uint32_t ulTimerCount = ulClockFrequency / ulTickRateHz;
portOUTPUT_WORD( portTIMER_1_CONTROL_REGISTER, usTimerEnable | portTIMER_INTERRUPT_ENABLE | usRetrigger ); portOUTPUT_WORD( portTIMER_1_CONTROL_REGISTER, usTimerEnable | portTIMER_INTERRUPT_ENABLE | usRetrigger );
portOUTPUT_WORD( usMaxCountRegister, ( uint16_t ) ulTimerCount ); portOUTPUT_WORD( usMaxCountRegister, ( uint16_t ) ulTimerCount );
portOUTPUT_WORD( usTimerPriorityRegister, usTimerHighPriority ); portOUTPUT_WORD( usTimerPriorityRegister, usTimerHighPriority );
/* Stop the DOS tick - don't do this if you want to maintain a TOD clock. */ /* Stop the DOS tick - don't do this if you want to maintain a TOD clock. */
usTimer0Control = portINPUT_WORD( portTIMER_0_CONTROL_REGISTER ); usTimer0Control = portINPUT_WORD( portTIMER_0_CONTROL_REGISTER );
usTimer0Control &= ~portTIMER_INTERRUPT_ENABLE; usTimer0Control &= ~portTIMER_INTERRUPT_ENABLE;
portOUTPUT_WORD( portTIMER_0_CONTROL_REGISTER, usTimer0Control ); portOUTPUT_WORD( portTIMER_0_CONTROL_REGISTER, usTimer0Control );
} }
/*lint +e950 */ /*lint +e950 */

72
portable/BCC/16BitDOS/Flsh186/prtmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
@ -39,59 +39,59 @@
*/ */
/* Type definitions. */ /* Type definitions. */
#define portCHAR char #define portCHAR char
#define portFLOAT float #define portFLOAT float
#define portDOUBLE long #define portDOUBLE long
#define portLONG long #define portLONG long
#define portSHORT int #define portSHORT int
#define portSTACK_TYPE uint16_t #define portSTACK_TYPE uint16_t
#define portBASE_TYPE portSHORT #define portBASE_TYPE portSHORT
typedef portSTACK_TYPE StackType_t; typedef portSTACK_TYPE StackType_t;
typedef short BaseType_t; typedef short BaseType_t;
typedef unsigned short UBaseType_t; typedef unsigned short UBaseType_t;
#if ( configUSE_16_BIT_TICKS == 1 ) #if( configUSE_16_BIT_TICKS == 1 )
typedef uint16_t TickType_t; typedef uint16_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffff #define portMAX_DELAY ( TickType_t ) 0xffff
#else #else
typedef uint32_t TickType_t; typedef uint32_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
#endif #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Critical section handling. */ /* Critical section handling. */
#define portENTER_CRITICAL() \ #define portENTER_CRITICAL() __asm{ pushf } \
__asm{ pushf } \ __asm{ cli } \
__asm{ cli } \
#define portEXIT_CRITICAL() __asm{ popf } #define portEXIT_CRITICAL() __asm{ popf }
#define portDISABLE_INTERRUPTS() __asm{ cli } #define portDISABLE_INTERRUPTS() __asm{ cli }
#define portENABLE_INTERRUPTS() __asm{ sti } #define portENABLE_INTERRUPTS() __asm{ sti }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Hardware specifics. */ /* Hardware specifics. */
#define portNOP() __asm{ nop } #define portNOP() __asm{ nop }
#define portSTACK_GROWTH ( -1 ) #define portSTACK_GROWTH ( -1 )
#define portSWITCH_INT_NUMBER 0x80 #define portSWITCH_INT_NUMBER 0x80
#define portYIELD() __asm{ int portSWITCH_INT_NUMBER } #define portYIELD() __asm{ int portSWITCH_INT_NUMBER }
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
#define portBYTE_ALIGNMENT 2 #define portBYTE_ALIGNMENT 2
#define portINITIAL_SW ( ( portSTACK_TYPE ) 0x0202 ) /* Start the tasks with interrupts enabled. */ #define portINITIAL_SW ( ( portSTACK_TYPE ) 0x0202 ) /* Start the tasks with interrupts enabled. */
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Compiler specifics. */ /* Compiler specifics. */
#define portINPUT_BYTE( xAddr ) inp( xAddr ) #define portINPUT_BYTE( xAddr ) inp( xAddr )
#define portOUTPUT_BYTE( xAddr, ucValue ) outp( xAddr, ucValue ) #define portOUTPUT_BYTE( xAddr, ucValue ) outp( xAddr, ucValue )
#define portINPUT_WORD( xAddr ) inpw( xAddr ) #define portINPUT_WORD( xAddr ) inpw( xAddr )
#define portOUTPUT_WORD( xAddr, usValue ) outpw( xAddr, usValue ) #define portOUTPUT_WORD( xAddr, usValue ) outpw( xAddr, usValue )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Task function macros as described on the FreeRTOS.org WEB site. */ /* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vTaskFunction, vParameters ) void vTaskFunction( void * pvParameters ) #define portTASK_FUNCTION_PROTO( vTaskFunction, vParameters ) void vTaskFunction( void *pvParameters )
#define portTASK_FUNCTION( vTaskFunction, vParameters ) void vTaskFunction( void * pvParameters ) #define portTASK_FUNCTION( vTaskFunction, vParameters ) void vTaskFunction( void *pvParameters )
#endif /* PORTMACRO_H */ #endif /* PORTMACRO_H */

316
portable/BCC/16BitDOS/PC/port.c
View file

@ -19,23 +19,23 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
/* /*
* Changes from V2.6.1 Changes from V2.6.1
*
+ Replaced the sUsingPreemption variable with the configUSE_PREEMPTION + Replaced the sUsingPreemption variable with the configUSE_PREEMPTION
+ macro to be consistent with the later ports. macro to be consistent with the later ports.
+
+ Changes from V4.0.1 Changes from V4.0.1
+
+ Add function prvSetTickFrequencyDefault() to set the DOS tick back to + Add function prvSetTickFrequencyDefault() to set the DOS tick back to
+ its proper value when the scheduler exits. its proper value when the scheduler exits.
*/ */
#include <stdlib.h> #include <stdlib.h>
#include <dos.h> #include <dos.h>
@ -46,13 +46,13 @@
#include "portasm.h" #include "portasm.h"
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Implementation of functions defined in portable.h for the industrial * Implementation of functions defined in portable.h for the industrial
* PC port. * PC port.
*----------------------------------------------------------*/ *----------------------------------------------------------*/
/*lint -e950 Non ANSI reserved words okay in this file only. */ /*lint -e950 Non ANSI reserved words okay in this file only. */
#define portTIMER_INT_NUMBER 0x08 #define portTIMER_INT_NUMBER 0x08
/* Setup hardware for required tick interrupt rate. */ /* Setup hardware for required tick interrupt rate. */
static void prvSetTickFrequency( uint32_t ulTickRateHz ); static void prvSetTickFrequency( uint32_t ulTickRateHz );
@ -61,29 +61,27 @@ static void prvSetTickFrequency( uint32_t ulTickRateHz );
static void prvExitFunction( void ); static void prvExitFunction( void );
/* Either chain to the DOS tick (which itself clears the PIC) or clear the PIC /* Either chain to the DOS tick (which itself clears the PIC) or clear the PIC
* directly. We chain to the DOS tick as close as possible to the standard DOS directly. We chain to the DOS tick as close as possible to the standard DOS
* tick rate. */ tick rate. */
static void prvPortResetPIC( void ); static void prvPortResetPIC( void );
/* The ISR used depends on whether the preemptive or cooperative /* The ISR used depends on whether the preemptive or cooperative
* scheduler is being used. */ scheduler is being used. */
#if ( configUSE_PREEMPTION == 1 ) #if( configUSE_PREEMPTION == 1 )
/* Tick service routine used by the scheduler when preemptive scheduling is
/* Tick service routine used by the scheduler when preemptive scheduling is being used. */
* being used. */ static void __interrupt __far prvPreemptiveTick( void );
static void __interrupt __far prvPreemptiveTick( void );
#else #else
/* Tick service routine used by the scheduler when cooperative scheduling is
/* Tick service routine used by the scheduler when cooperative scheduling is being used. */
* being used. */ static void __interrupt __far prvNonPreemptiveTick( void );
static void __interrupt __far prvNonPreemptiveTick( void );
#endif #endif
/* Trap routine used by taskYIELD() to manually cause a context switch. */ /* Trap routine used by taskYIELD() to manually cause a context switch. */
static void __interrupt __far prvYieldProcessor( void ); static void __interrupt __far prvYieldProcessor( void );
/* Set the tick frequency back so the floppy drive works correctly when the /* Set the tick frequency back so the floppy drive works correctly when the
* scheduler exits. */ scheduler exits. */
static void prvSetTickFrequencyDefault( void ); static void prvSetTickFrequencyDefault( void );
/*lint -e956 File scopes necessary here. */ /*lint -e956 File scopes necessary here. */
@ -95,10 +93,10 @@ static int16_t sDOSTickCounter;
static BaseType_t xSchedulerRunning = pdFALSE; static BaseType_t xSchedulerRunning = pdFALSE;
/* Points to the original routine installed on the vector we use for manual context switches. This is then used to restore the original routine during prvExitFunction(). */ /* Points to the original routine installed on the vector we use for manual context switches. This is then used to restore the original routine during prvExitFunction(). */
static void( __interrupt __far * pxOldSwitchISR )(); static void ( __interrupt __far *pxOldSwitchISR )();
/* Points to the original routine installed on the vector we use to chain to the DOS tick. This is then used to restore the original routine during prvExitFunction(). */ /* Points to the original routine installed on the vector we use to chain to the DOS tick. This is then used to restore the original routine during prvExitFunction(). */
static void( __interrupt __far * pxOldSwitchISRPlus1 )(); static void ( __interrupt __far *pxOldSwitchISRPlus1 )();
/* Used to restore the original DOS context when the scheduler is ended. */ /* Used to restore the original DOS context when the scheduler is ended. */
static jmp_buf xJumpBuf; static jmp_buf xJumpBuf;
@ -108,187 +106,183 @@ static jmp_buf xJumpBuf;
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
BaseType_t xPortStartScheduler( void ) BaseType_t xPortStartScheduler( void )
{ {
pxISR pxOriginalTickISR; pxISR pxOriginalTickISR;
/* This is called with interrupts already disabled. */ /* This is called with interrupts already disabled. */
/* Remember what was on the interrupts we are going to use /* Remember what was on the interrupts we are going to use
* so we can put them back later if required. */ so we can put them back later if required. */
pxOldSwitchISR = _dos_getvect( portSWITCH_INT_NUMBER ); pxOldSwitchISR = _dos_getvect( portSWITCH_INT_NUMBER );
pxOriginalTickISR = _dos_getvect( portTIMER_INT_NUMBER ); pxOriginalTickISR = _dos_getvect( portTIMER_INT_NUMBER );
pxOldSwitchISRPlus1 = _dos_getvect( portSWITCH_INT_NUMBER + 1 ); pxOldSwitchISRPlus1 = _dos_getvect( portSWITCH_INT_NUMBER + 1 );
prvSetTickFrequency( configTICK_RATE_HZ ); prvSetTickFrequency( configTICK_RATE_HZ );
/* Put our manual switch (yield) function on a known /* Put our manual switch (yield) function on a known
* vector. */ vector. */
_dos_setvect( portSWITCH_INT_NUMBER, prvYieldProcessor ); _dos_setvect( portSWITCH_INT_NUMBER, prvYieldProcessor );
/* Put the old tick on a different interrupt number so we can /* Put the old tick on a different interrupt number so we can
* call it when we want. */ call it when we want. */
_dos_setvect( portSWITCH_INT_NUMBER + 1, pxOriginalTickISR ); _dos_setvect( portSWITCH_INT_NUMBER + 1, pxOriginalTickISR );
/* The ISR used depends on whether the preemptive or cooperative /* The ISR used depends on whether the preemptive or cooperative
* scheduler is being used. */ scheduler is being used. */
#if ( configUSE_PREEMPTION == 1 ) #if( configUSE_PREEMPTION == 1 )
{ {
/* Put our tick switch function on the timer interrupt. */ /* Put our tick switch function on the timer interrupt. */
_dos_setvect( portTIMER_INT_NUMBER, prvPreemptiveTick ); _dos_setvect( portTIMER_INT_NUMBER, prvPreemptiveTick );
} }
#else #else
{ {
/* We want the timer interrupt to just increment the tick count. */ /* We want the timer interrupt to just increment the tick count. */
_dos_setvect( portTIMER_INT_NUMBER, prvNonPreemptiveTick ); _dos_setvect( portTIMER_INT_NUMBER, prvNonPreemptiveTick );
} }
#endif #endif
/* Setup a counter that is used to call the DOS interrupt as close /* Setup a counter that is used to call the DOS interrupt as close
* to it's original frequency as can be achieved given our chosen tick to it's original frequency as can be achieved given our chosen tick
* frequency. */ frequency. */
sDOSTickCounter = portTICKS_PER_DOS_TICK; sDOSTickCounter = portTICKS_PER_DOS_TICK;
/* Clean up function if we want to return to DOS. */ /* Clean up function if we want to return to DOS. */
if( setjmp( xJumpBuf ) != 0 ) if( setjmp( xJumpBuf ) != 0 )
{ {
prvExitFunction(); prvExitFunction();
xSchedulerRunning = pdFALSE; xSchedulerRunning = pdFALSE;
} }
else else
{ {
xSchedulerRunning = pdTRUE; xSchedulerRunning = pdTRUE;
/* Kick off the scheduler by setting up the context of the first task. */ /* Kick off the scheduler by setting up the context of the first task. */
portFIRST_CONTEXT(); portFIRST_CONTEXT();
} }
return xSchedulerRunning; return xSchedulerRunning;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* The ISR used depends on whether the preemptive or cooperative /* The ISR used depends on whether the preemptive or cooperative
* scheduler is being used. */ scheduler is being used. */
#if ( configUSE_PREEMPTION == 1 ) #if( configUSE_PREEMPTION == 1 )
static void __interrupt __far prvPreemptiveTick( void ) static void __interrupt __far prvPreemptiveTick( void )
{ {
/* Get the scheduler to update the task states following the tick. */ /* Get the scheduler to update the task states following the tick. */
if( xTaskIncrementTick() != pdFALSE ) if( xTaskIncrementTick() != pdFALSE )
{ {
/* Switch in the context of the next task to be run. */ /* Switch in the context of the next task to be run. */
portSWITCH_CONTEXT(); portSWITCH_CONTEXT();
} }
/* Reset the PIC ready for the next time. */ /* Reset the PIC ready for the next time. */
prvPortResetPIC(); prvPortResetPIC();
} }
#else /* if ( configUSE_PREEMPTION == 1 ) */ #else
static void __interrupt __far prvNonPreemptiveTick( void ) static void __interrupt __far prvNonPreemptiveTick( void )
{ {
/* Same as preemptive tick, but the cooperative scheduler is being used /* Same as preemptive tick, but the cooperative scheduler is being used
* so we don't have to switch in the context of the next task. */ so we don't have to switch in the context of the next task. */
xTaskIncrementTick(); xTaskIncrementTick();
prvPortResetPIC(); prvPortResetPIC();
} }
#endif /* if ( configUSE_PREEMPTION == 1 ) */ #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
static void __interrupt __far prvYieldProcessor( void ) static void __interrupt __far prvYieldProcessor( void )
{ {
/* Switch in the context of the next task to be run. */ /* Switch in the context of the next task to be run. */
portSWITCH_CONTEXT(); portSWITCH_CONTEXT();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
static void prvPortResetPIC( void ) static void prvPortResetPIC( void )
{ {
/* We are going to call the DOS tick interrupt at as close a /* We are going to call the DOS tick interrupt at as close a
* frequency to the normal DOS tick as possible. */ frequency to the normal DOS tick as possible. */
/* WE SHOULD NOT DO THIS IF YIELD WAS CALLED. */ /* WE SHOULD NOT DO THIS IF YIELD WAS CALLED. */
--sDOSTickCounter; --sDOSTickCounter;
if( sDOSTickCounter <= 0 )
if( sDOSTickCounter <= 0 ) {
{ sDOSTickCounter = ( int16_t ) portTICKS_PER_DOS_TICK;
sDOSTickCounter = ( int16_t ) portTICKS_PER_DOS_TICK; __asm{ int portSWITCH_INT_NUMBER + 1 };
__asm { }
int portSWITCH_INT_NUMBER + 1 else
}; {
} /* Reset the PIC as the DOS tick is not being called to
else do it. */
{ __asm
/* Reset the PIC as the DOS tick is not being called to {
* do it. */ mov al, 20H
__asm out 20H, al
{ };
mov al, 20H }
out 20H, al
};
}
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortEndScheduler( void ) void vPortEndScheduler( void )
{ {
/* Jump back to the processor state prior to starting the /* Jump back to the processor state prior to starting the
* scheduler. This means we are not going to be using a scheduler. This means we are not going to be using a
* task stack frame so the task can be deleted. */ task stack frame so the task can be deleted. */
longjmp( xJumpBuf, 1 ); longjmp( xJumpBuf, 1 );
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
static void prvExitFunction( void ) static void prvExitFunction( void )
{ {
void( __interrupt __far * pxOriginalTickISR )(); void ( __interrupt __far *pxOriginalTickISR )();
/* Interrupts should be disabled here anyway - but no /* Interrupts should be disabled here anyway - but no
* harm in making sure. */ harm in making sure. */
portDISABLE_INTERRUPTS(); portDISABLE_INTERRUPTS();
if( xSchedulerRunning == pdTRUE )
{
/* Set the DOS tick back onto the timer ticker. */
pxOriginalTickISR = _dos_getvect( portSWITCH_INT_NUMBER + 1 );
_dos_setvect( portTIMER_INT_NUMBER, pxOriginalTickISR );
prvSetTickFrequencyDefault();
if( xSchedulerRunning == pdTRUE ) /* Put back the switch interrupt routines that was in place
{ before the scheduler started. */
/* Set the DOS tick back onto the timer ticker. */ _dos_setvect( portSWITCH_INT_NUMBER, pxOldSwitchISR );
pxOriginalTickISR = _dos_getvect( portSWITCH_INT_NUMBER + 1 ); _dos_setvect( portSWITCH_INT_NUMBER + 1, pxOldSwitchISRPlus1 );
_dos_setvect( portTIMER_INT_NUMBER, pxOriginalTickISR ); }
prvSetTickFrequencyDefault(); /* The tick timer is back how DOS wants it. We can re-enable
interrupts without the scheduler being called. */
/* Put back the switch interrupt routines that was in place portENABLE_INTERRUPTS();
* before the scheduler started. */
_dos_setvect( portSWITCH_INT_NUMBER, pxOldSwitchISR );
_dos_setvect( portSWITCH_INT_NUMBER + 1, pxOldSwitchISRPlus1 );
}
/* The tick timer is back how DOS wants it. We can re-enable
* interrupts without the scheduler being called. */
portENABLE_INTERRUPTS();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
static void prvSetTickFrequency( uint32_t ulTickRateHz ) static void prvSetTickFrequency( uint32_t ulTickRateHz )
{ {
const uint16_t usPIT_MODE = ( uint16_t ) 0x43; const uint16_t usPIT_MODE = ( uint16_t ) 0x43;
const uint16_t usPIT0 = ( uint16_t ) 0x40; const uint16_t usPIT0 = ( uint16_t ) 0x40;
const uint32_t ulPIT_CONST = ( uint32_t ) 1193180UL; const uint32_t ulPIT_CONST = ( uint32_t ) 1193180UL;
const uint16_t us8254_CTR0_MODE3 = ( uint16_t ) 0x36; const uint16_t us8254_CTR0_MODE3 = ( uint16_t ) 0x36;
uint32_t ulOutput; uint32_t ulOutput;
/* Setup the 8245 to tick at the wanted frequency. */ /* Setup the 8245 to tick at the wanted frequency. */
portOUTPUT_BYTE( usPIT_MODE, us8254_CTR0_MODE3 ); portOUTPUT_BYTE( usPIT_MODE, us8254_CTR0_MODE3 );
ulOutput = ulPIT_CONST / ulTickRateHz; ulOutput = ulPIT_CONST / ulTickRateHz;
portOUTPUT_BYTE( usPIT0, ( uint16_t ) ( ulOutput & ( uint32_t ) 0xff ) ); portOUTPUT_BYTE( usPIT0, ( uint16_t )( ulOutput & ( uint32_t ) 0xff ) );
ulOutput >>= 8; ulOutput >>= 8;
portOUTPUT_BYTE( usPIT0, ( uint16_t ) ( ulOutput & ( uint32_t ) 0xff ) ); portOUTPUT_BYTE( usPIT0, ( uint16_t ) ( ulOutput & ( uint32_t ) 0xff ) );
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
static void prvSetTickFrequencyDefault( void ) static void prvSetTickFrequencyDefault( void )
{ {
const uint16_t usPIT_MODE = ( uint16_t ) 0x43; const uint16_t usPIT_MODE = ( uint16_t ) 0x43;
const uint16_t usPIT0 = ( uint16_t ) 0x40; const uint16_t usPIT0 = ( uint16_t ) 0x40;
const uint16_t us8254_CTR0_MODE3 = ( uint16_t ) 0x36; const uint16_t us8254_CTR0_MODE3 = ( uint16_t ) 0x36;
portOUTPUT_BYTE( usPIT_MODE, us8254_CTR0_MODE3 ); portOUTPUT_BYTE( usPIT_MODE, us8254_CTR0_MODE3 );
portOUTPUT_BYTE( usPIT0, 0 ); portOUTPUT_BYTE( usPIT0,0 );
portOUTPUT_BYTE( usPIT0, 0 ); portOUTPUT_BYTE( usPIT0,0 );
} }
/*lint +e950 */ /*lint +e950 */

72
portable/BCC/16BitDOS/PC/prtmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
@ -39,59 +39,59 @@
*/ */
/* Type definitions. */ /* Type definitions. */
#define portCHAR char #define portCHAR char
#define portFLOAT long #define portFLOAT long
#define portDOUBLE long #define portDOUBLE long
#define portLONG long #define portLONG long
#define portSHORT int #define portSHORT int
#define portSTACK_TYPE uint16_t #define portSTACK_TYPE uint16_t
#define portBASE_TYPE portSHORT #define portBASE_TYPE portSHORT
typedef portSTACK_TYPE StackType_t; typedef portSTACK_TYPE StackType_t;
typedef short BaseType_t; typedef short BaseType_t;
typedef unsigned short UBaseType_t; typedef unsigned short UBaseType_t;
#if ( configUSE_16_BIT_TICKS == 1 ) #if( configUSE_16_BIT_TICKS == 1 )
typedef uint16_t TickType_t; typedef uint16_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffff #define portMAX_DELAY ( TickType_t ) 0xffff
#else #else
typedef uint32_t TickType_t; typedef uint32_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
#endif #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Critical section management. */ /* Critical section management. */
#define portENTER_CRITICAL() \ #define portENTER_CRITICAL() __asm{ pushf } \
__asm{ pushf } \ __asm{ cli } \
__asm{ cli } \
#define portEXIT_CRITICAL() __asm{ popf } #define portEXIT_CRITICAL() __asm{ popf }
#define portDISABLE_INTERRUPTS() __asm{ cli } #define portDISABLE_INTERRUPTS() __asm{ cli }
#define portENABLE_INTERRUPTS() __asm{ sti } #define portENABLE_INTERRUPTS() __asm{ sti }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Hardware specifics. */ /* Hardware specifics. */
#define portNOP() __asm{ nop } #define portNOP() __asm{ nop }
#define portSTACK_GROWTH ( -1 ) #define portSTACK_GROWTH ( -1 )
#define portSWITCH_INT_NUMBER 0x80 #define portSWITCH_INT_NUMBER 0x80
#define portYIELD() __asm{ int portSWITCH_INT_NUMBER } #define portYIELD() __asm{ int portSWITCH_INT_NUMBER }
#define portDOS_TICK_RATE ( 18.20648 ) #define portDOS_TICK_RATE ( 18.20648 )
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
#define portTICKS_PER_DOS_TICK ( ( uint16_t ) ( ( ( portDOUBLE ) configTICK_RATE_HZ / portDOS_TICK_RATE ) + 0.5 ) ) #define portTICKS_PER_DOS_TICK ( ( uint16_t ) ( ( ( portDOUBLE ) configTICK_RATE_HZ / portDOS_TICK_RATE ) + 0.5 ) )
#define portINITIAL_SW ( ( portSTACK_TYPE ) 0x0202 ) /* Start the tasks with interrupts enabled. */ #define portINITIAL_SW ( ( portSTACK_TYPE ) 0x0202 ) /* Start the tasks with interrupts enabled. */
#define portBYTE_ALIGNMENT ( 2 ) #define portBYTE_ALIGNMENT ( 2 )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Compiler specifics. */ /* Compiler specifics. */
#define portINPUT_BYTE( xAddr ) inp( xAddr ) #define portINPUT_BYTE( xAddr ) inp( xAddr )
#define portOUTPUT_BYTE( xAddr, ucValue ) outp( xAddr, ucValue ) #define portOUTPUT_BYTE( xAddr, ucValue ) outp( xAddr, ucValue )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Task function macros as described on the FreeRTOS.org WEB site. */ /* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vTaskFunction, pvParameters ) void vTaskFunction( void * pvParameters ) #define portTASK_FUNCTION_PROTO( vTaskFunction, pvParameters ) void vTaskFunction( void *pvParameters )
#define portTASK_FUNCTION( vTaskFunction, pvParameters ) void vTaskFunction( void * pvParameters ) #define portTASK_FUNCTION( vTaskFunction, pvParameters ) void vTaskFunction( void *pvParameters )
#endif /* PORTMACRO_H */ #endif /* PORTMACRO_H */

71
portable/BCC/16BitDOS/common/portasm.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
@ -47,40 +47,41 @@ void portSWITCH_CONTEXT( void );
void portFIRST_CONTEXT( void ); void portFIRST_CONTEXT( void );
/* There are slightly different versions depending on whether you are building /* There are slightly different versions depending on whether you are building
* to include debugger information. If debugger information is used then there to include debugger information. If debugger information is used then there
* are a couple of extra bytes left of the ISR stack (presumably for use by the are a couple of extra bytes left of the ISR stack (presumably for use by the
* debugger). The true stack pointer is then stored in the bp register. We add debugger). The true stack pointer is then stored in the bp register. We add
* 2 to the stack pointer to remove the extra bytes before we restore our context. */ 2 to the stack pointer to remove the extra bytes before we restore our context. */
#define portSWITCH_CONTEXT() \ #define portSWITCH_CONTEXT() \
asm { mov ax, seg pxCurrentTCB } \ asm { mov ax, seg pxCurrentTCB } \
asm { mov ds, ax } \ asm { mov ds, ax } \
asm { les bx, pxCurrentTCB } /* Save the stack pointer into the TCB. */ \ asm { les bx, pxCurrentTCB } /* Save the stack pointer into the TCB. */ \
asm { mov es : 0x2[ bx ], ss } \ asm { mov es:0x2[ bx ], ss } \
asm { mov es:[ bx ], sp } \ asm { mov es:[ bx ], sp } \
asm { call far ptr vTaskSwitchContext } /* Perform the switch. */ \ asm { call far ptr vTaskSwitchContext } /* Perform the switch. */ \
asm { mov ax, seg pxCurrentTCB } /* Restore the stack pointer from the TCB. */ \ asm { mov ax, seg pxCurrentTCB } /* Restore the stack pointer from the TCB. */ \
asm { mov ds, ax } \ asm { mov ds, ax } \
asm { les bx, dword ptr pxCurrentTCB } \ asm { les bx, dword ptr pxCurrentTCB } \
asm { mov ss, es:[ bx + 2 ] } \ asm { mov ss, es:[ bx + 2 ] } \
asm { mov sp, es:[ bx ] } asm { mov sp, es:[ bx ] }
#define portFIRST_CONTEXT() \ #define portFIRST_CONTEXT() \
__asm { mov ax, seg pxCurrentTCB } \ __asm { mov ax, seg pxCurrentTCB } \
__asm { mov ds, ax } \ __asm { mov ds, ax } \
__asm { les bx, dword ptr pxCurrentTCB } \ __asm { les bx, dword ptr pxCurrentTCB } \
__asm { mov ss, es:[ bx + 2 ] } \ __asm { mov ss, es:[ bx + 2 ] } \
__asm { mov sp, es:[ bx ] } \ __asm { mov sp, es:[ bx ] } \
__asm { pop bp } \ __asm { pop bp } \
__asm { pop di } \ __asm { pop di } \
__asm { pop si } \ __asm { pop si } \
__asm { pop ds } \ __asm { pop ds } \
__asm { pop es } \ __asm { pop es } \
__asm { pop dx } \ __asm { pop dx } \
__asm { pop cx } \ __asm { pop cx } \
__asm { pop bx } \ __asm { pop bx } \
__asm { pop ax } \ __asm { pop ax } \
__asm { iret } __asm { iret }
#endif /* ifndef PORT_ASM_H */ #endif

143
portable/BCC/16BitDOS/common/portcomn.c
View file

@ -19,23 +19,23 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
/* /*
* Changes from V1.00: Changes from V1.00:
*
+ pxPortInitialiseStack() now initialises the stack of new tasks to the + pxPortInitialiseStack() now initialises the stack of new tasks to the
+ same format used by the compiler. This allows the compiler generated same format used by the compiler. This allows the compiler generated
+ interrupt mechanism to be used for context switches. interrupt mechanism to be used for context switches.
+
+ Changes from V2.6.1 Changes from V2.6.1
+
+ Move usPortCheckFreeStackSpace() to tasks.c. + Move usPortCheckFreeStackSpace() to tasks.c.
*/ */
#include <dos.h> #include <dos.h>
@ -45,79 +45,76 @@
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* See header file for description. */ /* See header file for description. */
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
TaskFunction_t pxCode,
void * pvParameters )
{ {
StackType_t DS_Reg = 0; StackType_t DS_Reg = 0;
/* Place a few bytes of known values on the bottom of the stack. /* Place a few bytes of known values on the bottom of the stack.
* This is just useful for debugging. */ This is just useful for debugging. */
*pxTopOfStack = 0x1111; *pxTopOfStack = 0x1111;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x2222; *pxTopOfStack = 0x2222;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x3333; *pxTopOfStack = 0x3333;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x4444; *pxTopOfStack = 0x4444;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x5555; *pxTopOfStack = 0x5555;
pxTopOfStack--; pxTopOfStack--;
/*lint -e950 -e611 -e923 Lint doesn't like this much - but nothing I can do about it. */ /*lint -e950 -e611 -e923 Lint doesn't like this much - but nothing I can do about it. */
/* We are going to start the scheduler using a return from interrupt /* We are going to start the scheduler using a return from interrupt
* instruction to load the program counter, so first there would be the instruction to load the program counter, so first there would be the
* function call with parameters preamble. */ function call with parameters preamble. */
*pxTopOfStack = FP_SEG( pvParameters ); *pxTopOfStack = FP_SEG( pvParameters );
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = FP_OFF( pvParameters ); *pxTopOfStack = FP_OFF( pvParameters );
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = FP_SEG( pxCode ); *pxTopOfStack = FP_SEG( pxCode );
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = FP_OFF( pxCode ); *pxTopOfStack = FP_OFF( pxCode );
pxTopOfStack--; pxTopOfStack--;
/* Next the status register and interrupt return address. */ /* Next the status register and interrupt return address. */
*pxTopOfStack = portINITIAL_SW; *pxTopOfStack = portINITIAL_SW;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = FP_SEG( pxCode ); *pxTopOfStack = FP_SEG( pxCode );
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = FP_OFF( pxCode ); *pxTopOfStack = FP_OFF( pxCode );
pxTopOfStack--; pxTopOfStack--;
/* The remaining registers would be pushed on the stack by our context /* The remaining registers would be pushed on the stack by our context
* switch function. These are loaded with values simply to make debugging switch function. These are loaded with values simply to make debugging
* easier. */ easier. */
*pxTopOfStack = ( StackType_t ) 0xAAAA; /* AX */ *pxTopOfStack = ( StackType_t ) 0xAAAA; /* AX */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xBBBB; /* BX */ *pxTopOfStack = ( StackType_t ) 0xBBBB; /* BX */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xCCCC; /* CX */ *pxTopOfStack = ( StackType_t ) 0xCCCC; /* CX */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xDDDD; /* DX */ *pxTopOfStack = ( StackType_t ) 0xDDDD; /* DX */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xEEEE; /* ES */ *pxTopOfStack = ( StackType_t ) 0xEEEE; /* ES */
pxTopOfStack--; pxTopOfStack--;
/* We need the true data segment. */ /* We need the true data segment. */
__asm { __asm{ MOV DS_Reg, DS };
MOV DS_Reg, DS
};
*pxTopOfStack = DS_Reg; /* DS */ *pxTopOfStack = DS_Reg; /* DS */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x0123; /* SI */ *pxTopOfStack = ( StackType_t ) 0x0123; /* SI */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xDDDD; /* DI */ *pxTopOfStack = ( StackType_t ) 0xDDDD; /* DI */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xBBBB; /* BP */ *pxTopOfStack = ( StackType_t ) 0xBBBB; /* BP */
/*lint +e950 +e611 +e923 */ /*lint +e950 +e611 +e923 */
return pxTopOfStack; return pxTopOfStack;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/

13
portable/CCS/ARM_CM3/port.c
View file

@ -19,14 +19,13 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Implementation of functions defined in portable.h for the ARM CM4F port. * Implementation of functions defined in portable.h for the ARM CM3 port.
*----------------------------------------------------------*/ *----------------------------------------------------------*/
/* Scheduler includes. */ /* Scheduler includes. */
@ -52,7 +51,7 @@
#define portNVIC_SYSTICK_CTRL_REG ( *( ( volatile uint32_t * ) 0xe000e010 ) ) #define portNVIC_SYSTICK_CTRL_REG ( *( ( volatile uint32_t * ) 0xe000e010 ) )
#define portNVIC_SYSTICK_LOAD_REG ( *( ( volatile uint32_t * ) 0xe000e014 ) ) #define portNVIC_SYSTICK_LOAD_REG ( *( ( volatile uint32_t * ) 0xe000e014 ) )
#define portNVIC_SYSTICK_CURRENT_VALUE_REG ( *( ( volatile uint32_t * ) 0xe000e018 ) ) #define portNVIC_SYSTICK_CURRENT_VALUE_REG ( *( ( volatile uint32_t * ) 0xe000e018 ) )
#define portNVIC_SYSPRI2_REG ( *( ( volatile uint32_t * ) 0xe000ed20 ) ) #define portNVIC_SHPR3_REG ( *( ( volatile uint32_t * ) 0xe000ed20 ) )
/* ...then bits in the registers. */ /* ...then bits in the registers. */
#define portNVIC_SYSTICK_INT_BIT ( 1UL << 1UL ) #define portNVIC_SYSTICK_INT_BIT ( 1UL << 1UL )
#define portNVIC_SYSTICK_ENABLE_BIT ( 1UL << 0UL ) #define portNVIC_SYSTICK_ENABLE_BIT ( 1UL << 0UL )
@ -275,8 +274,8 @@ BaseType_t xPortStartScheduler( void )
#endif /* conifgASSERT_DEFINED */ #endif /* conifgASSERT_DEFINED */
/* Make PendSV and SysTick the lowest priority interrupts. */ /* Make PendSV and SysTick the lowest priority interrupts. */
portNVIC_SYSPRI2_REG |= portNVIC_PENDSV_PRI; portNVIC_SHPR3_REG |= portNVIC_PENDSV_PRI;
portNVIC_SYSPRI2_REG |= portNVIC_SYSTICK_PRI; portNVIC_SHPR3_REG |= portNVIC_SYSTICK_PRI;
/* Start the timer that generates the tick ISR. Interrupts are disabled /* Start the timer that generates the tick ISR. Interrupts are disabled
* here already. */ * here already. */

4
portable/CCS/ARM_CM3/portasm.asm
View file

@ -19,8 +19,8 @@
; * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN ; * 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. ; * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
; * ; *
; * http://www.FreeRTOS.org ; * https://www.FreeRTOS.org
; * http://aws.amazon.com/freertos ; * https://github.com/FreeRTOS
; * ; *
; * 1 tab == 4 spaces! ; * 1 tab == 4 spaces!
; */ ; */

4
portable/CCS/ARM_CM3/portmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

11
portable/CCS/ARM_CM4F/port.c
View file

@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
/*----------------------------------------------------------- /*-----------------------------------------------------------
@ -56,7 +55,7 @@
#define portNVIC_SYSTICK_CTRL_REG ( *( ( volatile uint32_t * ) 0xe000e010 ) ) #define portNVIC_SYSTICK_CTRL_REG ( *( ( volatile uint32_t * ) 0xe000e010 ) )
#define portNVIC_SYSTICK_LOAD_REG ( *( ( volatile uint32_t * ) 0xe000e014 ) ) #define portNVIC_SYSTICK_LOAD_REG ( *( ( volatile uint32_t * ) 0xe000e014 ) )
#define portNVIC_SYSTICK_CURRENT_VALUE_REG ( *( ( volatile uint32_t * ) 0xe000e018 ) ) #define portNVIC_SYSTICK_CURRENT_VALUE_REG ( *( ( volatile uint32_t * ) 0xe000e018 ) )
#define portNVIC_SYSPRI2_REG ( *( ( volatile uint32_t * ) 0xe000ed20 ) ) #define portNVIC_SHPR3_REG ( *( ( volatile uint32_t * ) 0xe000ed20 ) )
/* ...then bits in the registers. */ /* ...then bits in the registers. */
#define portNVIC_SYSTICK_INT_BIT ( 1UL << 1UL ) #define portNVIC_SYSTICK_INT_BIT ( 1UL << 1UL )
#define portNVIC_SYSTICK_ENABLE_BIT ( 1UL << 0UL ) #define portNVIC_SYSTICK_ENABLE_BIT ( 1UL << 0UL )
@ -294,8 +293,8 @@ BaseType_t xPortStartScheduler( void )
#endif /* conifgASSERT_DEFINED */ #endif /* conifgASSERT_DEFINED */
/* Make PendSV and SysTick the lowest priority interrupts. */ /* Make PendSV and SysTick the lowest priority interrupts. */
portNVIC_SYSPRI2_REG |= portNVIC_PENDSV_PRI; portNVIC_SHPR3_REG |= portNVIC_PENDSV_PRI;
portNVIC_SYSPRI2_REG |= portNVIC_SYSTICK_PRI; portNVIC_SHPR3_REG |= portNVIC_SYSTICK_PRI;
/* Start the timer that generates the tick ISR. Interrupts are disabled /* Start the timer that generates the tick ISR. Interrupts are disabled
* here already. */ * here already. */

4
portable/CCS/ARM_CM4F/portasm.asm
View file

@ -19,8 +19,8 @@
; * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN ; * 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. ; * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
; * ; *
; * http://www.FreeRTOS.org ; * https://www.FreeRTOS.org
; * http://aws.amazon.com/freertos ; * https://github.com/FreeRTOS
; * ; *
; * 1 tab == 4 spaces! ; * 1 tab == 4 spaces!
; */ ; */

4
portable/CCS/ARM_CM4F/portmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

349
portable/CCS/ARM_Cortex-R4/port.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
@ -37,28 +37,28 @@ uint32_t ulCriticalNesting = 9999;
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Registers required to configure the RTI. */ /* Registers required to configure the RTI. */
#define portRTI_GCTRL_REG ( *( ( volatile uint32_t * ) 0xFFFFFC00 ) ) #define portRTI_GCTRL_REG ( * ( ( volatile uint32_t * ) 0xFFFFFC00 ) )
#define portRTI_TBCTRL_REG ( *( ( volatile uint32_t * ) 0xFFFFFC04 ) ) #define portRTI_TBCTRL_REG ( * ( ( volatile uint32_t * ) 0xFFFFFC04 ) )
#define portRTI_COMPCTRL_REG ( *( ( volatile uint32_t * ) 0xFFFFFC0C ) ) #define portRTI_COMPCTRL_REG ( * ( ( volatile uint32_t * ) 0xFFFFFC0C ) )
#define portRTI_CNT0_FRC0_REG ( *( ( volatile uint32_t * ) 0xFFFFFC10 ) ) #define portRTI_CNT0_FRC0_REG ( * ( ( volatile uint32_t * ) 0xFFFFFC10 ) )
#define portRTI_CNT0_UC0_REG ( *( ( volatile uint32_t * ) 0xFFFFFC14 ) ) #define portRTI_CNT0_UC0_REG ( * ( ( volatile uint32_t * ) 0xFFFFFC14 ) )
#define portRTI_CNT0_CPUC0_REG ( *( ( volatile uint32_t * ) 0xFFFFFC18 ) ) #define portRTI_CNT0_CPUC0_REG ( * ( ( volatile uint32_t * ) 0xFFFFFC18 ) )
#define portRTI_CNT0_COMP0_REG ( *( ( volatile uint32_t * ) 0xFFFFFC50 ) ) #define portRTI_CNT0_COMP0_REG ( * ( ( volatile uint32_t * ) 0xFFFFFC50 ) )
#define portRTI_CNT0_UDCP0_REG ( *( ( volatile uint32_t * ) 0xFFFFFC54 ) ) #define portRTI_CNT0_UDCP0_REG ( * ( ( volatile uint32_t * ) 0xFFFFFC54 ) )
#define portRTI_SETINTENA_REG ( *( ( volatile uint32_t * ) 0xFFFFFC80 ) ) #define portRTI_SETINTENA_REG ( * ( ( volatile uint32_t * ) 0xFFFFFC80 ) )
#define portRTI_CLEARINTENA_REG ( *( ( volatile uint32_t * ) 0xFFFFFC84 ) ) #define portRTI_CLEARINTENA_REG ( * ( ( volatile uint32_t * ) 0xFFFFFC84 ) )
#define portRTI_INTFLAG_REG ( *( ( volatile uint32_t * ) 0xFFFFFC88 ) ) #define portRTI_INTFLAG_REG ( * ( ( volatile uint32_t * ) 0xFFFFFC88 ) )
/* Constants required to set up the initial stack of each task. */ /* Constants required to set up the initial stack of each task. */
#define portINITIAL_SPSR ( ( StackType_t ) 0x1F ) #define portINITIAL_SPSR ( ( StackType_t ) 0x1F )
#define portINITIAL_FPSCR ( ( StackType_t ) 0x00 ) #define portINITIAL_FPSCR ( ( StackType_t ) 0x00 )
#define portINSTRUCTION_SIZE ( ( StackType_t ) 0x04 ) #define portINSTRUCTION_SIZE ( ( StackType_t ) 0x04 )
#define portTHUMB_MODE_BIT ( ( StackType_t ) 0x20 ) #define portTHUMB_MODE_BIT ( ( StackType_t ) 0x20 )
/* The number of words on the stack frame between the saved Top Of Stack and /* The number of words on the stack frame between the saved Top Of Stack and
* R0 (in which the parameters are passed. */ R0 (in which the parameters are passed. */
#define portSPACE_BETWEEN_TOS_AND_PARAMETERS ( 12 ) #define portSPACE_BETWEEN_TOS_AND_PARAMETERS ( 12 )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -68,7 +68,7 @@ extern void vPortStartFirstTask( void );
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Saved as part of the task context. Set to pdFALSE if the task does not /* Saved as part of the task context. Set to pdFALSE if the task does not
* require an FPU context. */ require an FPU context. */
uint32_t ulTaskHasFPUContext = 0; uint32_t ulTaskHasFPUContext = 0;
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -77,183 +77,181 @@ uint32_t ulTaskHasFPUContext = 0;
/* /*
* See header file for description. * See header file for description.
*/ */
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
TaskFunction_t pxCode,
void * pvParameters )
{ {
StackType_t * pxOriginalTOS; StackType_t *pxOriginalTOS;
pxOriginalTOS = pxTopOfStack; pxOriginalTOS = pxTopOfStack;
#if __TI_VFP_SUPPORT__ #if __TI_VFP_SUPPORT__
{ {
/* Ensure the stack is correctly aligned on exit. */ /* Ensure the stack is correctly aligned on exit. */
pxTopOfStack--; pxTopOfStack--;
} }
#endif #endif
/* Setup the initial stack of the task. The stack is set exactly as /* Setup the initial stack of the task. The stack is set exactly as
* expected by the portRESTORE_CONTEXT() macro. */ expected by the portRESTORE_CONTEXT() macro. */
/* First on the stack is the return address - which is the start of the as /* First on the stack is the return address - which is the start of the as
* the task has not executed yet. The offset is added to make the return the task has not executed yet. The offset is added to make the return
* address appear as it would within an IRQ ISR. */ address appear as it would within an IRQ ISR. */
*pxTopOfStack = ( StackType_t ) pxCode + portINSTRUCTION_SIZE; *pxTopOfStack = ( StackType_t ) pxCode + portINSTRUCTION_SIZE;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x00000000; /* R14 */ *pxTopOfStack = ( StackType_t ) 0x00000000; /* R14 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) pxOriginalTOS; /* Stack used when task starts goes in R13. */ *pxTopOfStack = ( StackType_t ) pxOriginalTOS; /* Stack used when task starts goes in R13. */
pxTopOfStack--; pxTopOfStack--;
#ifdef portPRELOAD_TASK_REGISTERS #ifdef portPRELOAD_TASK_REGISTERS
{ {
*pxTopOfStack = ( StackType_t ) 0x12121212; /* R12 */ *pxTopOfStack = ( StackType_t ) 0x12121212; /* R12 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x11111111; /* R11 */ *pxTopOfStack = ( StackType_t ) 0x11111111; /* R11 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x10101010; /* R10 */ *pxTopOfStack = ( StackType_t ) 0x10101010; /* R10 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x09090909; /* R9 */ *pxTopOfStack = ( StackType_t ) 0x09090909; /* R9 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x08080808; /* R8 */ *pxTopOfStack = ( StackType_t ) 0x08080808; /* R8 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x07070707; /* R7 */ *pxTopOfStack = ( StackType_t ) 0x07070707; /* R7 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x06060606; /* R6 */ *pxTopOfStack = ( StackType_t ) 0x06060606; /* R6 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x05050505; /* R5 */ *pxTopOfStack = ( StackType_t ) 0x05050505; /* R5 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x04040404; /* R4 */ *pxTopOfStack = ( StackType_t ) 0x04040404; /* R4 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x03030303; /* R3 */ *pxTopOfStack = ( StackType_t ) 0x03030303; /* R3 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x02020202; /* R2 */ *pxTopOfStack = ( StackType_t ) 0x02020202; /* R2 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x01010101; /* R1 */ *pxTopOfStack = ( StackType_t ) 0x01010101; /* R1 */
pxTopOfStack--; pxTopOfStack--;
} }
#else /* ifdef portPRELOAD_TASK_REGISTERS */ #else
{ {
pxTopOfStack -= portSPACE_BETWEEN_TOS_AND_PARAMETERS; pxTopOfStack -= portSPACE_BETWEEN_TOS_AND_PARAMETERS;
} }
#endif /* ifdef portPRELOAD_TASK_REGISTERS */ #endif
/* Function parameters are passed in R0. */ /* Function parameters are passed in R0. */
*pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */ *pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */
pxTopOfStack--; pxTopOfStack--;
/* Set the status register for system mode, with interrupts enabled. */ /* Set the status register for system mode, with interrupts enabled. */
*pxTopOfStack = ( StackType_t ) ( ( _get_CPSR() & ~0xFF ) | portINITIAL_SPSR ); *pxTopOfStack = ( StackType_t ) ( ( _get_CPSR() & ~0xFF ) | portINITIAL_SPSR );
if( ( ( uint32_t ) pxCode & 0x01UL ) != 0x00 ) if( ( ( uint32_t ) pxCode & 0x01UL ) != 0x00 )
{ {
/* The task will start in thumb mode. */ /* The task will start in thumb mode. */
*pxTopOfStack |= portTHUMB_MODE_BIT; *pxTopOfStack |= portTHUMB_MODE_BIT;
} }
#ifdef __TI_VFP_SUPPORT__ #ifdef __TI_VFP_SUPPORT__
{ {
pxTopOfStack--; pxTopOfStack--;
/* The last thing on the stack is the tasks ulUsingFPU value, which by /* The last thing on the stack is the tasks ulUsingFPU value, which by
* default is set to indicate that the stack frame does not include FPU default is set to indicate that the stack frame does not include FPU
* registers. */ registers. */
*pxTopOfStack = pdFALSE; *pxTopOfStack = pdFALSE;
} }
#endif #endif
return pxTopOfStack; return pxTopOfStack;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
static void prvSetupTimerInterrupt( void ) static void prvSetupTimerInterrupt(void)
{ {
/* Disable timer 0. */ /* Disable timer 0. */
portRTI_GCTRL_REG &= 0xFFFFFFFEUL; portRTI_GCTRL_REG &= 0xFFFFFFFEUL;
/* Use the internal counter. */ /* Use the internal counter. */
portRTI_TBCTRL_REG = 0x00000000U; portRTI_TBCTRL_REG = 0x00000000U;
/* COMPSEL0 will use the RTIFRC0 counter. */ /* COMPSEL0 will use the RTIFRC0 counter. */
portRTI_COMPCTRL_REG = 0x00000000U; portRTI_COMPCTRL_REG = 0x00000000U;
/* Initialise the counter and the prescale counter registers. */ /* Initialise the counter and the prescale counter registers. */
portRTI_CNT0_UC0_REG = 0x00000000U; portRTI_CNT0_UC0_REG = 0x00000000U;
portRTI_CNT0_FRC0_REG = 0x00000000U; portRTI_CNT0_FRC0_REG = 0x00000000U;
/* Set Prescalar for RTI clock. */ /* Set Prescalar for RTI clock. */
portRTI_CNT0_CPUC0_REG = 0x00000001U; portRTI_CNT0_CPUC0_REG = 0x00000001U;
portRTI_CNT0_COMP0_REG = ( configCPU_CLOCK_HZ / 2 ) / configTICK_RATE_HZ; portRTI_CNT0_COMP0_REG = ( configCPU_CLOCK_HZ / 2 ) / configTICK_RATE_HZ;
portRTI_CNT0_UDCP0_REG = ( configCPU_CLOCK_HZ / 2 ) / configTICK_RATE_HZ; portRTI_CNT0_UDCP0_REG = ( configCPU_CLOCK_HZ / 2 ) / configTICK_RATE_HZ;
/* Clear interrupts. */ /* Clear interrupts. */
portRTI_INTFLAG_REG = 0x0007000FU; portRTI_INTFLAG_REG = 0x0007000FU;
portRTI_CLEARINTENA_REG = 0x00070F0FU; portRTI_CLEARINTENA_REG = 0x00070F0FU;
/* Enable the compare 0 interrupt. */ /* Enable the compare 0 interrupt. */
portRTI_SETINTENA_REG = 0x00000001U; portRTI_SETINTENA_REG = 0x00000001U;
portRTI_GCTRL_REG |= 0x00000001U; portRTI_GCTRL_REG |= 0x00000001U;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* /*
* See header file for description. * See header file for description.
*/ */
BaseType_t xPortStartScheduler( void ) BaseType_t xPortStartScheduler(void)
{ {
/* Start the timer that generates the tick ISR. */ /* Start the timer that generates the tick ISR. */
prvSetupTimerInterrupt(); prvSetupTimerInterrupt();
/* Reset the critical section nesting count read to execute the first task. */ /* Reset the critical section nesting count read to execute the first task. */
ulCriticalNesting = 0; ulCriticalNesting = 0;
/* Start the first task. This is done from portASM.asm as ARM mode must be /* Start the first task. This is done from portASM.asm as ARM mode must be
* used. */ used. */
vPortStartFirstTask(); vPortStartFirstTask();
/* Should not get here! */ /* Should not get here! */
return pdFAIL; return pdFAIL;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* /*
* See header file for description. * See header file for description.
*/ */
void vPortEndScheduler( void ) void vPortEndScheduler(void)
{ {
/* Not implemented in ports where there is nothing to return to. /* Not implemented in ports where there is nothing to return to.
* Artificially force an assert. */ Artificially force an assert. */
configASSERT( ulCriticalNesting == 1000UL ); configASSERT( ulCriticalNesting == 1000UL );
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#if configUSE_PREEMPTION == 0 #if configUSE_PREEMPTION == 0
/* The cooperative scheduler requires a normal IRQ service routine to /* The cooperative scheduler requires a normal IRQ service routine to
* simply increment the system tick. */ * simply increment the system tick. */
__interrupt void vPortNonPreemptiveTick( void ) __interrupt void vPortNonPreemptiveTick( void )
{ {
/* clear clock interrupt flag */ /* clear clock interrupt flag */
portRTI_INTFLAG_REG = 0x00000001; portRTI_INTFLAG_REG = 0x00000001;
/* Increment the tick count - this may make a delaying task ready /* Increment the tick count - this may make a delaying task ready
* to run - but a context switch is not performed. */ to run - but a context switch is not performed. */
xTaskIncrementTick(); xTaskIncrementTick();
} }
#else /* if configUSE_PREEMPTION == 0 */ #else
/* /*
************************************************************************** **************************************************************************
* The preemptive scheduler ISR is written in assembler and can be found * The preemptive scheduler ISR is written in assembler and can be found
* in the portASM.asm file. This will only get used if portUSE_PREEMPTION * in the portASM.asm file. This will only get used if portUSE_PREEMPTION
* is set to 1 in portmacro.h * is set to 1 in portmacro.h
************************************************************************** **************************************************************************
*/ */
void vPortPreemptiveTick( void ); void vPortPreemptiveTick( void );
#endif /* if configUSE_PREEMPTION == 0 */ #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -262,13 +260,13 @@ void vPortEndScheduler( void )
*/ */
void vPortEnterCritical( void ) void vPortEnterCritical( void )
{ {
/* Disable interrupts as per portDISABLE_INTERRUPTS(); */ /* Disable interrupts as per portDISABLE_INTERRUPTS(); */
portDISABLE_INTERRUPTS(); portDISABLE_INTERRUPTS();
/* Now interrupts are disabled ulCriticalNesting can be accessed /* Now interrupts are disabled ulCriticalNesting can be accessed
* directly. Increment ulCriticalNesting to keep a count of how many times directly. Increment ulCriticalNesting to keep a count of how many times
* portENTER_CRITICAL() has been called. */ portENTER_CRITICAL() has been called. */
ulCriticalNesting++; ulCriticalNesting++;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -278,36 +276,37 @@ void vPortEnterCritical( void )
*/ */
void vPortExitCritical( void ) void vPortExitCritical( void )
{ {
if( ulCriticalNesting > 0 ) if( ulCriticalNesting > 0 )
{ {
/* Decrement the nesting count as we are leaving a critical section. */ /* Decrement the nesting count as we are leaving a critical section. */
ulCriticalNesting--; ulCriticalNesting--;
/* If the nesting level has reached zero then interrupts should be /* If the nesting level has reached zero then interrupts should be
* re-enabled. */ re-enabled. */
if( ulCriticalNesting == 0 ) if( ulCriticalNesting == 0 )
{ {
/* Enable interrupts as per portENABLE_INTERRUPTS(). */ /* Enable interrupts as per portENABLE_INTERRUPTS(). */
portENABLE_INTERRUPTS(); portENABLE_INTERRUPTS();
} }
} }
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#if __TI_VFP_SUPPORT__ #if __TI_VFP_SUPPORT__
void vPortTaskUsesFPU( void ) void vPortTaskUsesFPU( void )
{ {
extern void vPortInitialiseFPSCR( void ); extern void vPortInitialiseFPSCR( void );
/* A task is registering the fact that it needs an FPU context. Set the /* A task is registering the fact that it needs an FPU context. Set the
* FPU flag (saved as part of the task context. */ FPU flag (saved as part of the task context. */
ulTaskHasFPUContext = pdTRUE; ulTaskHasFPUContext = pdTRUE;
/* Initialise the floating point status register. */ /* Initialise the floating point status register. */
vPortInitialiseFPSCR(); vPortInitialiseFPSCR();
} }
#endif /* __TI_VFP_SUPPORT__ */ #endif /* __TI_VFP_SUPPORT__ */
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/

4
portable/CCS/ARM_Cortex-R4/portASM.asm
View file

@ -19,8 +19,8 @@
; * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN ; * 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. ; * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
; * ; *
; * http://www.FreeRTOS.org ; * https://www.FreeRTOS.org
; * http://aws.amazon.com/freertos ; * https://github.com/FreeRTOS
; * ; *
; * 1 tab == 4 spaces! ; * 1 tab == 4 spaces!
; */ ; */

93
portable/CCS/ARM_Cortex-R4/portmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
@ -39,78 +39,79 @@
*/ */
/* Type definitions. */ /* Type definitions. */
#define portCHAR char #define portCHAR char
#define portFLOAT float #define portFLOAT float
#define portDOUBLE double #define portDOUBLE double
#define portLONG long #define portLONG long
#define portSHORT short #define portSHORT short
#define portSTACK_TYPE uint32_t #define portSTACK_TYPE uint32_t
#define portBASE_TYPE long #define portBASE_TYPE long
typedef portSTACK_TYPE StackType_t; typedef portSTACK_TYPE StackType_t;
typedef long BaseType_t; typedef long BaseType_t;
typedef unsigned long UBaseType_t; typedef unsigned long UBaseType_t;
#if ( configUSE_16_BIT_TICKS == 1 ) #if (configUSE_16_BIT_TICKS == 1)
typedef uint16_t TickType_t; typedef uint16_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xFFFF #define portMAX_DELAY (TickType_t) 0xFFFF
#else #else
typedef uint32_t TickType_t; typedef uint32_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xFFFFFFFFF #define portMAX_DELAY (TickType_t) 0xFFFFFFFFF
/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do /* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
* not need to be guarded with a critical section. */ not need to be guarded with a critical section. */
#define portTICK_TYPE_IS_ATOMIC 1 #define portTICK_TYPE_IS_ATOMIC 1
#endif #endif
/* Architecture specifics. */ /* Architecture specifics. */
#define portSTACK_GROWTH ( -1 ) #define portSTACK_GROWTH (-1)
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #define portTICK_PERIOD_MS ((TickType_t) 1000 / configTICK_RATE_HZ)
#define portBYTE_ALIGNMENT 8 #define portBYTE_ALIGNMENT 8
/* Critical section handling. */ /* Critical section handling. */
extern void vPortEnterCritical( void ); extern void vPortEnterCritical(void);
extern void vPortExitCritical( void ); extern void vPortExitCritical(void);
#define portENTER_CRITICAL() vPortEnterCritical() #define portENTER_CRITICAL() vPortEnterCritical()
#define portEXIT_CRITICAL() vPortExitCritical() #define portEXIT_CRITICAL() vPortExitCritical()
#define portDISABLE_INTERRUPTS() asm ( " CPSID I" ) #define portDISABLE_INTERRUPTS() asm( " CPSID I" )
#define portENABLE_INTERRUPTS() asm ( " CPSIE I" ) #define portENABLE_INTERRUPTS() asm( " CPSIE I" )
/* Scheduler utilities. */ /* Scheduler utilities. */
#pragma SWI_ALIAS( vPortYield, 0 ) #pragma SWI_ALIAS( vPortYield, 0 )
extern void vPortYield( void ); extern void vPortYield( void );
#define portYIELD() vPortYield() #define portYIELD() vPortYield()
#define portSYS_SSIR1_REG ( *( ( volatile uint32_t * ) 0xFFFFFFB0 ) ) #define portSYS_SSIR1_REG ( * ( ( volatile uint32_t * ) 0xFFFFFFB0 ) )
#define portSYS_SSIR1_SSKEY ( 0x7500UL ) #define portSYS_SSIR1_SSKEY ( 0x7500UL )
#define portYIELD_WITHIN_API() { portSYS_SSIR1_REG = portSYS_SSIR1_SSKEY; asm ( " DSB " ); asm ( " ISB " ); } #define portYIELD_WITHIN_API() { portSYS_SSIR1_REG = portSYS_SSIR1_SSKEY; asm( " DSB " ); asm( " ISB " ); }
#define portYIELD_FROM_ISR( x ) if( x != pdFALSE ) { portSYS_SSIR1_REG = portSYS_SSIR1_SSKEY; ( void ) portSYS_SSIR1_REG; } #define portYIELD_FROM_ISR( x ) if( x != pdFALSE ){ portSYS_SSIR1_REG = portSYS_SSIR1_SSKEY; ( void ) portSYS_SSIR1_REG; }
#ifndef configUSE_PORT_OPTIMISED_TASK_SELECTION #ifndef configUSE_PORT_OPTIMISED_TASK_SELECTION
#define configUSE_PORT_OPTIMISED_TASK_SELECTION 1 #define configUSE_PORT_OPTIMISED_TASK_SELECTION 1
#endif #endif
/* Architecture specific optimisations. */ /* Architecture specific optimisations. */
#if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1 #if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1
/* Check the configuration. */ /* Check the configuration. */
#if ( configMAX_PRIORITIES > 32 ) #if( configMAX_PRIORITIES > 32 )
#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. #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.
#endif #endif
/* Store/clear the ready priorities in a bit map. */ /* Store/clear the ready priorities in a bit map. */
#define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( 1UL << ( uxPriority ) ) #define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( 1UL << ( uxPriority ) )
#define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( 1UL << ( uxPriority ) ) #define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( 1UL << ( uxPriority ) )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31 - __clz( ( uxReadyPriorities ) ) ) #define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31 - __clz( ( uxReadyPriorities ) ) )
#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */ #endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */
/* Task function macros as described on the FreeRTOS.org WEB site. */ /* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION(vFunction, pvParameters) void vFunction(void *pvParameters)
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION_PROTO(vFunction, pvParameters) void vFunction(void *pvParameters)
#endif /* __PORTMACRO_H__ */ #endif /* __PORTMACRO_H__ */

97
portable/CCS/MSP430X/data_model.h
View file

@ -1,48 +1,53 @@
; /* ;/*
* ; * FreeRTOS Kernel V10.3.1 ; * FreeRTOS Kernel V10.3.1
* ; * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved. ; * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
* ; * ; *
* ; * Permission is hereby granted, free of charge, to any person obtaining a copy of ; * 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 ; * this software and associated documentation files (the "Software"), to deal in
* ; * the Software without restriction, including without limitation the rights to ; * the Software without restriction, including without limitation the rights to
* ; * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of ; * 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, ; * the Software, and to permit persons to whom the Software is furnished to do so,
* ; * subject to the following conditions: ; * subject to the following conditions:
* ; * ; *
* ; * The above copyright notice and this permission notice shall be included in all ; * The above copyright notice and this permission notice shall be included in all
* ; * copies or substantial portions of the Software. ; * copies or substantial portions of the Software.
* ; * ; *
* ; * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR ; * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* ; * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS ; * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* ; * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR ; * 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 ; * 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 ; * 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. ; * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* ; * ; *
* ; * http://www.FreeRTOS.org ; * https://www.FreeRTOS.org
* ; * http://aws.amazon.com/freertos ; * https://github.com/FreeRTOS
* ; * ; *
* ; * 1 tab == 4 spaces! ; * 1 tab == 4 spaces!
* ; */ ; */
.if $DEFINED( __LARGE_DATA_MODEL__ )
.define "pushm.a", pushm_x
.define "popm.a", popm_x
.define "push.a", push_x
.define "pop.a", pop_x
.define "mov.a", mov_x
.else
.define "pushm.w", pushm_x
.define "popm.w", popm_x
.define "push.w", push_x
.define "pop.w", pop_x
.define "mov.w", mov_x
.endif
.if $DEFINED( __LARGE_CODE_MODEL__ )
.define "calla", call_x
.define "reta", ret_x
.else
.define "call", call_x
.define "ret", ret_x
.endif
.if $DEFINED( __LARGE_DATA_MODEL__ )
.define "pushm.a", pushm_x
.define "popm.a", popm_x
.define "push.a", push_x
.define "pop.a", pop_x
.define "mov.a", mov_x
.else
.define "pushm.w", pushm_x
.define "popm.w", popm_x
.define "push.w", push_x
.define "pop.w", pop_x
.define "mov.w", mov_x
.endif
.if $DEFINED( __LARGE_CODE_MODEL__ )
.define "calla", call_x
.define "reta", ret_x
.else
.define "call", call_x
.define "ret", ret_x
.endif

206
portable/CCS/MSP430X/port.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
@ -30,28 +30,28 @@
#include "task.h" #include "task.h"
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Implementation of functions defined in portable.h for the MSP430X port. * Implementation of functions defined in portable.h for the MSP430X port.
*----------------------------------------------------------*/ *----------------------------------------------------------*/
/* Constants required for hardware setup. The tick ISR runs off the ACLK, /* Constants required for hardware setup. The tick ISR runs off the ACLK,
* not the MCLK. */ not the MCLK. */
#define portACLK_FREQUENCY_HZ ( ( TickType_t ) 32768 ) #define portACLK_FREQUENCY_HZ ( ( TickType_t ) 32768 )
#define portINITIAL_CRITICAL_NESTING ( ( uint16_t ) 10 ) #define portINITIAL_CRITICAL_NESTING ( ( uint16_t ) 10 )
#define portFLAGS_INT_ENABLED ( ( StackType_t ) 0x08 ) #define portFLAGS_INT_ENABLED ( ( StackType_t ) 0x08 )
/* We require the address of the pxCurrentTCB variable, but don't want to know /* We require the address of the pxCurrentTCB variable, but don't want to know
* any details of its type. */ any details of its type. */
typedef void TCB_t; typedef void TCB_t;
extern volatile TCB_t * volatile pxCurrentTCB; extern volatile TCB_t * volatile pxCurrentTCB;
/* Each task maintains a count of the critical section nesting depth. Each /* 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 time a critical section is entered the count is incremented. Each time a
* critical section is exited the count is decremented - with interrupts only critical section is exited the count is decremented - with interrupts only
* being re-enabled if the count is zero. being re-enabled if the count is zero.
*
* usCriticalNesting will get set to zero when the scheduler starts, but must usCriticalNesting will get set to zero when the scheduler starts, but must
* not be initialised to zero as this will cause problems during the startup not be initialised to zero as this will cause problems during the startup
* sequence. */ sequence. */
volatile uint16_t usCriticalNesting = portINITIAL_CRITICAL_NESTING; volatile uint16_t usCriticalNesting = portINITIAL_CRITICAL_NESTING;
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -69,96 +69,94 @@ void vPortSetupTimerInterrupt( void );
* *
* See the header file portable.h. * See the header file portable.h.
*/ */
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
TaskFunction_t pxCode,
void * pvParameters )
{ {
uint16_t * pusTopOfStack; uint16_t *pusTopOfStack;
uint32_t * pulTopOfStack, ulTemp; uint32_t *pulTopOfStack, ulTemp;
/* /*
* Place a few bytes of known values on the bottom of the stack. Place a few bytes of known values on the bottom of the stack.
* This is just useful for debugging and can be included if required. This is just useful for debugging and can be included if required.
*
* pxTopOfStack = ( StackType_t ) 0x1111;
* pxTopOfStack--;
* pxTopOfStack = ( StackType_t ) 0x2222;
* pxTopOfStack--;
* pxTopOfStack = ( StackType_t ) 0x3333;
* pxTopOfStack--;
*/
/* Data types are need either 16 bits or 32 bits depending on the data *pxTopOfStack = ( StackType_t ) 0x1111;
* and code model used. */ pxTopOfStack--;
if( sizeof( pxCode ) == sizeof( uint16_t ) ) *pxTopOfStack = ( StackType_t ) 0x2222;
{ pxTopOfStack--;
pusTopOfStack = ( uint16_t * ) pxTopOfStack; *pxTopOfStack = ( StackType_t ) 0x3333;
ulTemp = ( uint32_t ) pxCode; pxTopOfStack--;
*pusTopOfStack = ( uint16_t ) ulTemp; */
}
else
{
/* Make room for a 20 bit value stored as a 32 bit value. */
pusTopOfStack = ( uint16_t * ) pxTopOfStack;
pusTopOfStack--;
pulTopOfStack = ( uint32_t * ) pusTopOfStack;
*pulTopOfStack = ( uint32_t ) pxCode;
}
pusTopOfStack--; /* Data types are need either 16 bits or 32 bits depending on the data
*pusTopOfStack = portFLAGS_INT_ENABLED; and code model used. */
pusTopOfStack -= ( sizeof( StackType_t ) / 2 ); if( sizeof( pxCode ) == sizeof( uint16_t ) )
{
pusTopOfStack = ( uint16_t * ) pxTopOfStack;
ulTemp = ( uint32_t ) pxCode;
*pusTopOfStack = ( uint16_t ) ulTemp;
}
else
{
/* Make room for a 20 bit value stored as a 32 bit value. */
pusTopOfStack = ( uint16_t * ) pxTopOfStack;
pusTopOfStack--;
pulTopOfStack = ( uint32_t * ) pusTopOfStack;
*pulTopOfStack = ( uint32_t ) pxCode;
}
/* From here on the size of stacked items depends on the memory model. */ pusTopOfStack--;
pxTopOfStack = ( StackType_t * ) pusTopOfStack; *pusTopOfStack = portFLAGS_INT_ENABLED;
pusTopOfStack -= ( sizeof( StackType_t ) / 2 );
/* Next the general purpose registers. */ /* From here on the size of stacked items depends on the memory model. */
#ifdef PRELOAD_REGISTER_VALUES pxTopOfStack = ( StackType_t * ) pusTopOfStack;
*pxTopOfStack = ( StackType_t ) 0xffff;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xeeee;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xdddd;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) pvParameters;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xbbbb;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xaaaa;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x9999;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x8888;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x5555;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x6666;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x5555;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x4444;
pxTopOfStack--;
#else /* ifdef PRELOAD_REGISTER_VALUES */
pxTopOfStack -= 3;
*pxTopOfStack = ( StackType_t ) pvParameters;
pxTopOfStack -= 9;
#endif /* ifdef PRELOAD_REGISTER_VALUES */
/* A variable is used to keep track of the critical section nesting. /* Next the general purpose registers. */
* This variable has to be stored as part of the task context and is #ifdef PRELOAD_REGISTER_VALUES
* initially set to zero. */ *pxTopOfStack = ( StackType_t ) 0xffff;
*pxTopOfStack = ( StackType_t ) portNO_CRITICAL_SECTION_NESTING; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xeeee;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xdddd;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) pvParameters;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xbbbb;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xaaaa;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x9999;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x8888;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x5555;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x6666;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x5555;
pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x4444;
pxTopOfStack--;
#else
pxTopOfStack -= 3;
*pxTopOfStack = ( StackType_t ) pvParameters;
pxTopOfStack -= 9;
#endif
/* Return a pointer to the top of the stack we have generated so this can /* A variable is used to keep track of the critical section nesting.
* be stored in the task control block for the task. */ This variable has to be stored as part of the task context and is
return pxTopOfStack; initially set to zero. */
*pxTopOfStack = ( StackType_t ) portNO_CRITICAL_SECTION_NESTING;
/* Return a pointer to the top of the stack we have generated so this can
be stored in the task control block for the task. */
return pxTopOfStack;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortEndScheduler( void ) void vPortEndScheduler( void )
{ {
/* It is unlikely that the MSP430 port will get stopped. If required simply /* It is unlikely that the MSP430 port will get stopped. If required simply
* disable the tick interrupt here. */ disable the tick interrupt here. */
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -167,21 +165,23 @@ void vPortEndScheduler( void )
*/ */
void vPortSetupTimerInterrupt( void ) void vPortSetupTimerInterrupt( void )
{ {
vApplicationSetupTimerInterrupt(); vApplicationSetupTimerInterrupt();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#pragma vector=configTICK_VECTOR #pragma vector=configTICK_VECTOR
interrupt void vTickISREntry( void ) interrupt void vTickISREntry( void )
{ {
extern void vPortTickISR( void ); extern void vPortTickISR( void );
__bic_SR_register_on_exit( SCG1 + SCG0 + OSCOFF + CPUOFF ); __bic_SR_register_on_exit( SCG1 + SCG0 + OSCOFF + CPUOFF );
#if configUSE_PREEMPTION == 1 #if configUSE_PREEMPTION == 1
extern void vPortPreemptiveTickISR( void ); extern void vPortPreemptiveTickISR( void );
vPortPreemptiveTickISR(); vPortPreemptiveTickISR();
#else #else
extern void vPortCooperativeTickISR( void ); extern void vPortCooperativeTickISR( void );
vPortCooperativeTickISR(); vPortCooperativeTickISR();
#endif #endif
} }

4
portable/CCS/MSP430X/portext.asm
View file

@ -19,8 +19,8 @@
; * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN ; * 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. ; * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
; * ; *
; * http://www.FreeRTOS.org ; * https://www.FreeRTOS.org
; * http://aws.amazon.com/freertos ; * https://github.com/FreeRTOS
; * ; *
; * 1 tab == 4 spaces! ; * 1 tab == 4 spaces!
; */ ; */

119
portable/CCS/MSP430X/portmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
@ -42,72 +42,72 @@
#include "msp430.h" #include "msp430.h"
/* Type definitions. */ /* Type definitions. */
#define portCHAR char #define portCHAR char
#define portFLOAT float #define portFLOAT float
#define portDOUBLE double #define portDOUBLE double
#define portLONG long #define portLONG long
#define portSHORT int #define portSHORT int
#define portBASE_TYPE portSHORT #define portBASE_TYPE portSHORT
/* The stack type changes depending on the data model. */ /* The stack type changes depending on the data model. */
#ifdef __LARGE_DATA_MODEL__ #ifdef __LARGE_DATA_MODEL__
#define portSTACK_TYPE uint32_t #define portSTACK_TYPE uint32_t
#else #else
#define portSTACK_TYPE uint16_t #define portSTACK_TYPE uint16_t
#define portPOINTER_SIZE_TYPE uint16_t #define portPOINTER_SIZE_TYPE uint16_t
#endif #endif
typedef portSTACK_TYPE StackType_t; typedef portSTACK_TYPE StackType_t;
typedef short BaseType_t; typedef short BaseType_t;
typedef unsigned short UBaseType_t; typedef unsigned short UBaseType_t;
#if ( configUSE_16_BIT_TICKS == 1 ) #if( configUSE_16_BIT_TICKS == 1 )
typedef uint16_t TickType_t; typedef uint16_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffff #define portMAX_DELAY ( TickType_t ) 0xffff
#else #else
typedef uint32_t TickType_t; typedef uint32_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
#endif #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Interrupt control macros. */ /* Interrupt control macros. */
#define portDISABLE_INTERRUPTS() _disable_interrupt(); _nop() #define portDISABLE_INTERRUPTS() _disable_interrupt(); _nop()
#define portENABLE_INTERRUPTS() _enable_interrupt(); _nop() #define portENABLE_INTERRUPTS() _enable_interrupt(); _nop()
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Critical section control macros. */ /* Critical section control macros. */
#define portNO_CRITICAL_SECTION_NESTING ( ( uint16_t ) 0 ) #define portNO_CRITICAL_SECTION_NESTING ( ( uint16_t ) 0 )
#define portENTER_CRITICAL() \ #define portENTER_CRITICAL() \
{ \ { \
extern volatile uint16_t usCriticalNesting; \ extern volatile uint16_t usCriticalNesting; \
\ \
portDISABLE_INTERRUPTS(); \ portDISABLE_INTERRUPTS(); \
\ \
/* Now interrupts are disabled usCriticalNesting can be accessed */ \ /* Now interrupts are disabled usCriticalNesting can be accessed */ \
/* directly. Increment ulCriticalNesting to keep a count of how many */ \ /* directly. Increment ulCriticalNesting to keep a count of how many */ \
/* times portENTER_CRITICAL() has been called. */ \ /* times portENTER_CRITICAL() has been called. */ \
usCriticalNesting++; \ usCriticalNesting++; \
} }
#define portEXIT_CRITICAL() \ #define portEXIT_CRITICAL() \
{ \ { \
extern volatile uint16_t usCriticalNesting; \ extern volatile uint16_t usCriticalNesting; \
\ \
if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING ) \ if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING ) \
{ \ { \
/* Decrement the nesting count as we are leaving a critical section. */ \ /* Decrement the nesting count as we are leaving a critical section. */ \
usCriticalNesting--; \ usCriticalNesting--; \
\ \
/* If the nesting level has reached zero then interrupts should be */ \ /* If the nesting level has reached zero then interrupts should be */ \
/* re-enabled. */ \ /* re-enabled. */ \
if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING ) \ if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING ) \
{ \ { \
portENABLE_INTERRUPTS(); \ portENABLE_INTERRUPTS(); \
} \ } \
} \ } \
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Task utilities. */ /* Task utilities. */
@ -116,27 +116,28 @@ typedef unsigned short UBaseType_t;
* Manual context switch called by portYIELD or taskYIELD. * Manual context switch called by portYIELD or taskYIELD.
*/ */
extern void vPortYield( void ); extern void vPortYield( void );
#define portYIELD() vPortYield() #define portYIELD() vPortYield()
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Hardware specifics. */ /* Hardware specifics. */
#define portBYTE_ALIGNMENT 2 #define portBYTE_ALIGNMENT 2
#define portSTACK_GROWTH ( -1 ) #define portSTACK_GROWTH ( -1 )
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
#define portNOP() __no_operation() #define portNOP() __no_operation()
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Task function macros as described on the FreeRTOS.org WEB site. */ /* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
extern void vTaskSwitchContext( void ); extern void vTaskSwitchContext( void );
#define portYIELD_FROM_ISR( x ) if( x ) vPortYield() #define portYIELD_FROM_ISR( x ) if( x ) vPortYield()
void vApplicationSetupTimerInterrupt( void ); void vApplicationSetupTimerInterrupt( void );
/* sizeof( int ) != sizeof( long ) so a full printf() library is required if /* sizeof( int ) != sizeof( long ) so a full printf() library is required if
* run time stats information is to be displayed. */ run time stats information is to be displayed. */
#define portLU_PRINTF_SPECIFIER_REQUIRED #define portLU_PRINTF_SPECIFIER_REQUIRED
#endif /* PORTMACRO_H */ #endif /* PORTMACRO_H */

166
portable/CodeWarrior/ColdFire_V1/port.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
@ -30,158 +30,154 @@
#include "task.h" #include "task.h"
#define portINITIAL_FORMAT_VECTOR ( ( StackType_t ) 0x4000 ) #define portINITIAL_FORMAT_VECTOR ( ( StackType_t ) 0x4000 )
/* Supervisor mode set. */ /* Supervisor mode set. */
#define portINITIAL_STATUS_REGISTER ( ( StackType_t ) 0x2000 ) #define portINITIAL_STATUS_REGISTER ( ( StackType_t ) 0x2000)
/* The clock prescale into the timer peripheral. */ /* The clock prescale into the timer peripheral. */
#define portPRESCALE_VALUE ( ( uint8_t ) 10 ) #define portPRESCALE_VALUE ( ( uint8_t ) 10 )
/* The clock frequency into the RTC. */ /* The clock frequency into the RTC. */
#define portRTC_CLOCK_HZ ( ( uint32_t ) 1000 ) #define portRTC_CLOCK_HZ ( ( uint32_t ) 1000 )
asm void interrupt VectorNumber_VL1swi vPortYieldISR( void ); asm void interrupt VectorNumber_VL1swi vPortYieldISR( void );
static void prvSetupTimerInterrupt( void ); static void prvSetupTimerInterrupt( void );
/* Used to keep track of the number of nested calls to taskENTER_CRITICAL(). This /* Used to keep track of the number of nested calls to taskENTER_CRITICAL(). This
* will be set to 0 prior to the first task being started. */ will be set to 0 prior to the first task being started. */
static uint32_t ulCriticalNesting = 0x9999UL; static uint32_t ulCriticalNesting = 0x9999UL;
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t *pxPortInitialiseStack( StackType_t * pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
TaskFunction_t pxCode,
void * pvParameters )
{ {
uint32_t ulOriginalA5;
__asm { uint32_t ulOriginalA5;
MOVE.L A5, ulOriginalA5
}; __asm{ MOVE.L A5, ulOriginalA5 };
*pxTopOfStack = ( StackType_t ) 0xDEADBEEF; *pxTopOfStack = (StackType_t) 0xDEADBEEF;
pxTopOfStack--; pxTopOfStack--;
/* Exception stack frame starts with the return address. */ /* Exception stack frame starts with the return address. */
*pxTopOfStack = ( StackType_t ) pxCode; *pxTopOfStack = ( StackType_t ) pxCode;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( portINITIAL_FORMAT_VECTOR << 16UL ) | ( portINITIAL_STATUS_REGISTER ); *pxTopOfStack = ( portINITIAL_FORMAT_VECTOR << 16UL ) | ( portINITIAL_STATUS_REGISTER );
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x0; /*FP*/ *pxTopOfStack = ( StackType_t ) 0x0; /*FP*/
pxTopOfStack -= 14; /* A5 to D0. */ pxTopOfStack -= 14; /* A5 to D0. */
/* Parameter in A0. */ /* Parameter in A0. */
*( pxTopOfStack + 8 ) = ( StackType_t ) pvParameters; *( pxTopOfStack + 8 ) = ( StackType_t ) pvParameters;
/* A5 must be maintained as it is resurved by the compiler. */ /* A5 must be maintained as it is resurved by the compiler. */
*( pxTopOfStack + 13 ) = ulOriginalA5; *( pxTopOfStack + 13 ) = ulOriginalA5;
return pxTopOfStack; return pxTopOfStack;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
BaseType_t xPortStartScheduler( void ) BaseType_t xPortStartScheduler( void )
{ {
extern void vPortStartFirstTask( void ); extern void vPortStartFirstTask( void );
ulCriticalNesting = 0UL; ulCriticalNesting = 0UL;
/* Configure a timer to generate the tick interrupt. */ /* Configure a timer to generate the tick interrupt. */
prvSetupTimerInterrupt(); prvSetupTimerInterrupt();
/* Start the first task executing. */ /* Start the first task executing. */
vPortStartFirstTask(); vPortStartFirstTask();
return pdFALSE; return pdFALSE;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
static void prvSetupTimerInterrupt( void ) static void prvSetupTimerInterrupt( void )
{ {
/* Prescale by 1 - ie no prescale. */ /* Prescale by 1 - ie no prescale. */
RTCSC |= 8; RTCSC |= 8;
/* Compare match value. */ /* Compare match value. */
RTCMOD = portRTC_CLOCK_HZ / configTICK_RATE_HZ; RTCMOD = portRTC_CLOCK_HZ / configTICK_RATE_HZ;
/* Enable the RTC to generate interrupts - interrupts are already disabled /* Enable the RTC to generate interrupts - interrupts are already disabled
* when this code executes. */ when this code executes. */
RTCSC_RTIE = 1; RTCSC_RTIE = 1;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortEndScheduler( void ) void vPortEndScheduler( void )
{ {
/* Not implemented as there is nothing to return to. */ /* Not implemented as there is nothing to return to. */
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortEnterCritical( void ) void vPortEnterCritical( void )
{ {
if( ulCriticalNesting == 0UL ) if( ulCriticalNesting == 0UL )
{ {
/* Guard against context switches being pended simultaneously with a /* Guard against context switches being pended simultaneously with a
* critical section being entered. */ critical section being entered. */
do do
{ {
portDISABLE_INTERRUPTS(); portDISABLE_INTERRUPTS();
if( INTC_FRC == 0UL )
{
break;
}
if( INTC_FRC == 0UL ) portENABLE_INTERRUPTS();
{
break;
}
portENABLE_INTERRUPTS(); } while( 1 );
} while( 1 ); }
} ulCriticalNesting++;
ulCriticalNesting++;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortExitCritical( void ) void vPortExitCritical( void )
{ {
ulCriticalNesting--; ulCriticalNesting--;
if( ulCriticalNesting == 0 )
if( ulCriticalNesting == 0 ) {
{ portENABLE_INTERRUPTS();
portENABLE_INTERRUPTS(); }
}
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortYieldHandler( void ) void vPortYieldHandler( void )
{ {
uint32_t ulSavedInterruptMask; uint32_t ulSavedInterruptMask;
ulSavedInterruptMask = portSET_INTERRUPT_MASK_FROM_ISR(); ulSavedInterruptMask = portSET_INTERRUPT_MASK_FROM_ISR();
{ {
/* Note this will clear all forced interrupts - this is done for speed. */ /* Note this will clear all forced interrupts - this is done for speed. */
INTC_CFRC = 0x3E; INTC_CFRC = 0x3E;
vTaskSwitchContext(); vTaskSwitchContext();
} }
portCLEAR_INTERRUPT_MASK_FROM_ISR( ulSavedInterruptMask ); portCLEAR_INTERRUPT_MASK_FROM_ISR( ulSavedInterruptMask );
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void interrupt VectorNumber_Vrtc vPortTickISR( void ) void interrupt VectorNumber_Vrtc vPortTickISR( void )
{ {
uint32_t ulSavedInterruptMask; uint32_t ulSavedInterruptMask;
/* Clear the interrupt. */ /* Clear the interrupt. */
RTCSC |= RTCSC_RTIF_MASK; RTCSC |= RTCSC_RTIF_MASK;
/* Increment the RTOS tick. */ /* Increment the RTOS tick. */
ulSavedInterruptMask = portSET_INTERRUPT_MASK_FROM_ISR(); ulSavedInterruptMask = portSET_INTERRUPT_MASK_FROM_ISR();
{ {
if( xTaskIncrementTick() != pdFALSE ) if( xTaskIncrementTick() != pdFALSE )
{ {
taskYIELD(); taskYIELD();
} }
} }
portCLEAR_INTERRUPT_MASK_FROM_ISR( ulSavedInterruptMask ); portCLEAR_INTERRUPT_MASK_FROM_ISR( ulSavedInterruptMask );
} }

4
portable/CodeWarrior/ColdFire_V1/portasm.S
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

98
portable/CodeWarrior/ColdFire_V1/portmacro.h
View file

@ -19,18 +19,18 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
#ifndef PORTMACRO_H #ifndef PORTMACRO_H
#define PORTMACRO_H #define PORTMACRO_H
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Port specific definitions. * Port specific definitions.
@ -43,73 +43,73 @@
*/ */
/* Type definitions. */ /* Type definitions. */
#define portCHAR char #define portCHAR char
#define portFLOAT float #define portFLOAT float
#define portDOUBLE double #define portDOUBLE double
#define portLONG long #define portLONG long
#define portSHORT short #define portSHORT short
#define portSTACK_TYPE uint32_t #define portSTACK_TYPE uint32_t
#define portBASE_TYPE long #define portBASE_TYPE long
typedef portSTACK_TYPE StackType_t; typedef portSTACK_TYPE StackType_t;
typedef long BaseType_t; typedef long BaseType_t;
typedef unsigned long UBaseType_t; typedef unsigned long UBaseType_t;
#if ( configUSE_16_BIT_TICKS == 1 ) #if( configUSE_16_BIT_TICKS == 1 )
typedef uint16_t TickType_t; typedef uint16_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffff #define portMAX_DELAY ( TickType_t ) 0xffff
#else #else
typedef uint32_t TickType_t; typedef uint32_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
#endif #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Hardware specifics. */ /* Hardware specifics. */
#define portBYTE_ALIGNMENT 4 #define portBYTE_ALIGNMENT 4
#define portSTACK_GROWTH -1 #define portSTACK_GROWTH -1
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
uint32_t ulPortSetIPL( uint32_t ); uint32_t ulPortSetIPL( uint32_t );
#define portDISABLE_INTERRUPTS() ulPortSetIPL( configMAX_SYSCALL_INTERRUPT_PRIORITY ) #define portDISABLE_INTERRUPTS() ulPortSetIPL( configMAX_SYSCALL_INTERRUPT_PRIORITY )
#define portENABLE_INTERRUPTS() ulPortSetIPL( 0 ) #define portENABLE_INTERRUPTS() ulPortSetIPL( 0 )
extern void vPortEnterCritical( void ); extern void vPortEnterCritical( void );
extern void vPortExitCritical( void ); extern void vPortExitCritical( void );
#define portENTER_CRITICAL() vPortEnterCritical() #define portENTER_CRITICAL() vPortEnterCritical()
#define portEXIT_CRITICAL() vPortExitCritical() #define portEXIT_CRITICAL() vPortExitCritical()
extern UBaseType_t uxPortSetInterruptMaskFromISR( void ); extern UBaseType_t uxPortSetInterruptMaskFromISR( void );
extern void vPortClearInterruptMaskFromISR( UBaseType_t ); extern void vPortClearInterruptMaskFromISR( UBaseType_t );
#define portSET_INTERRUPT_MASK_FROM_ISR() ulPortSetIPL( configMAX_SYSCALL_INTERRUPT_PRIORITY ) #define portSET_INTERRUPT_MASK_FROM_ISR() ulPortSetIPL( configMAX_SYSCALL_INTERRUPT_PRIORITY )
#define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedStatusRegister ) ulPortSetIPL( uxSavedStatusRegister ) #define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedStatusRegister ) ulPortSetIPL( uxSavedStatusRegister )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Task utilities. */ /* Task utilities. */
#define portNOP() asm volatile ( "nop" ) #define portNOP() asm volatile ( "nop" )
/* Context switches are requested using the force register. */ /* Context switches are requested using the force register. */
#define portYIELD() INTC_SFRC = 0x3E; portNOP(); portNOP(); portNOP(); portNOP(); portNOP() #define portYIELD() INTC_SFRC = 0x3E; portNOP(); portNOP(); portNOP(); portNOP(); portNOP()
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Task function macros as described on the FreeRTOS.org WEB site. */ /* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters ) __attribute__( ( noreturn ) ) #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters ) __attribute__((noreturn))
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#define portEND_SWITCHING_ISR( xSwitchRequired ) \ #define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired != pdFALSE ) \
if( xSwitchRequired != pdFALSE ) \ { \
{ \ portYIELD(); \
portYIELD(); \ }
}
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif
#endif /* PORTMACRO_H */ #endif /* PORTMACRO_H */

129
portable/CodeWarrior/ColdFire_V2/port.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
@ -30,52 +30,50 @@
#include "task.h" #include "task.h"
#define portINITIAL_FORMAT_VECTOR ( ( StackType_t ) 0x4000 ) #define portINITIAL_FORMAT_VECTOR ( ( StackType_t ) 0x4000 )
/* Supervisor mode set. */ /* Supervisor mode set. */
#define portINITIAL_STATUS_REGISTER ( ( StackType_t ) 0x2000 ) #define portINITIAL_STATUS_REGISTER ( ( StackType_t ) 0x2000)
/* Used to keep track of the number of nested calls to taskENTER_CRITICAL(). This /* Used to keep track of the number of nested calls to taskENTER_CRITICAL(). This
* will be set to 0 prior to the first task being started. */ will be set to 0 prior to the first task being started. */
static uint32_t ulCriticalNesting = 0x9999UL; static uint32_t ulCriticalNesting = 0x9999UL;
#define portSAVE_CONTEXT() \ #define portSAVE_CONTEXT() \
lea.l( -60, % sp ), % sp; \ lea.l (-60, %sp), %sp; \
movem.l % d0 - % fp, ( % sp ); \ movem.l %d0-%fp, (%sp); \
move.l pxCurrentTCB, % a0; \ move.l pxCurrentTCB, %a0; \
move.l % sp, ( % a0 ); move.l %sp, (%a0);
#define portRESTORE_CONTEXT() \ #define portRESTORE_CONTEXT() \
move.l pxCurrentTCB, % a0; \ move.l pxCurrentTCB, %a0; \
move.l( % a0 ), % sp; \ move.l (%a0), %sp; \
movem.l( % sp ), % d0 - % fp; \ movem.l (%sp), %d0-%fp; \
lea.l % sp@( 60 ), % sp; \ lea.l %sp@(60), %sp; \
rte rte
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t *pxPortInitialiseStack( StackType_t * pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
TaskFunction_t pxCode,
void * pvParameters )
{ {
*pxTopOfStack = ( StackType_t ) pvParameters; *pxTopOfStack = ( StackType_t ) pvParameters;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xDEADBEEF; *pxTopOfStack = (StackType_t) 0xDEADBEEF;
pxTopOfStack--; pxTopOfStack--;
/* Exception stack frame starts with the return address. */ /* Exception stack frame starts with the return address. */
*pxTopOfStack = ( StackType_t ) pxCode; *pxTopOfStack = ( StackType_t ) pxCode;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( portINITIAL_FORMAT_VECTOR << 16UL ) | ( portINITIAL_STATUS_REGISTER ); *pxTopOfStack = ( portINITIAL_FORMAT_VECTOR << 16UL ) | ( portINITIAL_STATUS_REGISTER );
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x0; /*FP*/ *pxTopOfStack = ( StackType_t ) 0x0; /*FP*/
pxTopOfStack -= 14; /* A5 to D0. */ pxTopOfStack -= 14; /* A5 to D0. */
return pxTopOfStack; return pxTopOfStack;
} }
@ -83,68 +81,67 @@ StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
BaseType_t xPortStartScheduler( void ) BaseType_t xPortStartScheduler( void )
{ {
extern void vPortStartFirstTask( void ); extern void vPortStartFirstTask( void );
ulCriticalNesting = 0UL; ulCriticalNesting = 0UL;
/* Configure the interrupts used by this port. */ /* Configure the interrupts used by this port. */
vApplicationSetupInterrupts(); vApplicationSetupInterrupts();
/* Start the first task executing. */ /* Start the first task executing. */
vPortStartFirstTask(); vPortStartFirstTask();
return pdFALSE; return pdFALSE;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortEndScheduler( void ) void vPortEndScheduler( void )
{ {
/* Not implemented as there is nothing to return to. */ /* Not implemented as there is nothing to return to. */
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortEnterCritical( void ) void vPortEnterCritical( void )
{ {
if( ulCriticalNesting == 0UL ) if( ulCriticalNesting == 0UL )
{ {
/* Guard against context switches being pended simultaneously with a /* Guard against context switches being pended simultaneously with a
* critical section being entered. */ critical section being entered. */
do do
{ {
portDISABLE_INTERRUPTS(); portDISABLE_INTERRUPTS();
if( MCF_INTC0_INTFRCH == 0UL )
{
break;
}
if( MCF_INTC0_INTFRCH == 0UL ) portENABLE_INTERRUPTS();
{
break;
}
portENABLE_INTERRUPTS(); } while( 1 );
} while( 1 ); }
} ulCriticalNesting++;
ulCriticalNesting++;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortExitCritical( void ) void vPortExitCritical( void )
{ {
ulCriticalNesting--; ulCriticalNesting--;
if( ulCriticalNesting == 0 )
if( ulCriticalNesting == 0 ) {
{ portENABLE_INTERRUPTS();
portENABLE_INTERRUPTS(); }
}
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortYieldHandler( void ) void vPortYieldHandler( void )
{ {
uint32_t ulSavedInterruptMask; uint32_t ulSavedInterruptMask;
ulSavedInterruptMask = portSET_INTERRUPT_MASK_FROM_ISR(); ulSavedInterruptMask = portSET_INTERRUPT_MASK_FROM_ISR();
/* Note this will clear all forced interrupts - this is done for speed. */ /* Note this will clear all forced interrupts - this is done for speed. */
MCF_INTC0_INTFRCL = 0; MCF_INTC0_INTFRCL = 0;
vTaskSwitchContext(); vTaskSwitchContext();
portCLEAR_INTERRUPT_MASK_FROM_ISR( ulSavedInterruptMask ); portCLEAR_INTERRUPT_MASK_FROM_ISR( ulSavedInterruptMask );
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/

4
portable/CodeWarrior/ColdFire_V2/portasm.S
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */

98
portable/CodeWarrior/ColdFire_V2/portmacro.h
View file

@ -19,18 +19,18 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
#ifndef PORTMACRO_H #ifndef PORTMACRO_H
#define PORTMACRO_H #define PORTMACRO_H
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Port specific definitions. * Port specific definitions.
@ -43,72 +43,72 @@
*/ */
/* Type definitions. */ /* Type definitions. */
#define portCHAR char #define portCHAR char
#define portFLOAT float #define portFLOAT float
#define portDOUBLE double #define portDOUBLE double
#define portLONG long #define portLONG long
#define portSHORT short #define portSHORT short
#define portSTACK_TYPE uint32_t #define portSTACK_TYPE uint32_t
#define portBASE_TYPE long #define portBASE_TYPE long
typedef portSTACK_TYPE StackType_t; typedef portSTACK_TYPE StackType_t;
typedef long BaseType_t; typedef long BaseType_t;
typedef unsigned long UBaseType_t; typedef unsigned long UBaseType_t;
#if ( configUSE_16_BIT_TICKS == 1 ) #if( configUSE_16_BIT_TICKS == 1 )
typedef uint16_t TickType_t; typedef uint16_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffff #define portMAX_DELAY ( TickType_t ) 0xffff
#else #else
typedef uint32_t TickType_t; typedef uint32_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
#endif #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Hardware specifics. */ /* Hardware specifics. */
#define portBYTE_ALIGNMENT 4 #define portBYTE_ALIGNMENT 4
#define portSTACK_GROWTH -1 #define portSTACK_GROWTH -1
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
uint32_t ulPortSetIPL( uint32_t ); uint32_t ulPortSetIPL( uint32_t );
#define portDISABLE_INTERRUPTS() ulPortSetIPL( configMAX_SYSCALL_INTERRUPT_PRIORITY ) #define portDISABLE_INTERRUPTS() ulPortSetIPL( configMAX_SYSCALL_INTERRUPT_PRIORITY )
#define portENABLE_INTERRUPTS() ulPortSetIPL( 0 ) #define portENABLE_INTERRUPTS() ulPortSetIPL( 0 )
extern void vPortEnterCritical( void ); extern void vPortEnterCritical( void );
extern void vPortExitCritical( void ); extern void vPortExitCritical( void );
#define portENTER_CRITICAL() vPortEnterCritical() #define portENTER_CRITICAL() vPortEnterCritical()
#define portEXIT_CRITICAL() vPortExitCritical() #define portEXIT_CRITICAL() vPortExitCritical()
extern UBaseType_t uxPortSetInterruptMaskFromISR( void ); extern UBaseType_t uxPortSetInterruptMaskFromISR( void );
extern void vPortClearInterruptMaskFromISR( UBaseType_t ); extern void vPortClearInterruptMaskFromISR( UBaseType_t );
#define portSET_INTERRUPT_MASK_FROM_ISR() ulPortSetIPL( configMAX_SYSCALL_INTERRUPT_PRIORITY ) #define portSET_INTERRUPT_MASK_FROM_ISR() ulPortSetIPL( configMAX_SYSCALL_INTERRUPT_PRIORITY )
#define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedStatusRegister ) ulPortSetIPL( uxSavedStatusRegister ) #define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedStatusRegister ) ulPortSetIPL( uxSavedStatusRegister )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Task utilities. */ /* Task utilities. */
#define portNOP() asm volatile ( "nop" ) #define portNOP() asm volatile ( "nop" )
/* Note this will overwrite all other bits in the force register, it is done this way for speed. */ /* Note this will overwrite all other bits in the force register, it is done this way for speed. */
#define portYIELD() MCF_INTC0_INTFRCL = ( 1UL << configYIELD_INTERRUPT_VECTOR ); portNOP(); portNOP() /* -32 as we are using the high word of the 64bit mask. */ #define portYIELD() MCF_INTC0_INTFRCL = ( 1UL << configYIELD_INTERRUPT_VECTOR ); portNOP(); portNOP() /* -32 as we are using the high word of the 64bit mask. */
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Task function macros as described on the FreeRTOS.org WEB site. */ /* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters ) __attribute__( ( noreturn ) ) #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters ) __attribute__((noreturn))
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#define portEND_SWITCHING_ISR( xSwitchRequired ) \ #define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired != pdFALSE ) \
if( xSwitchRequired != pdFALSE ) \ { \
{ \ portYIELD(); \
portYIELD(); \ }
}
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif
#endif /* PORTMACRO_H */ #endif /* PORTMACRO_H */

224
portable/CodeWarrior/HCS12/port.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
@ -31,8 +31,8 @@
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Implementation of functions defined in portable.h for the HCS12 port. * Implementation of functions defined in portable.h for the HCS12 port.
*----------------------------------------------------------*/ *----------------------------------------------------------*/
/* /*
@ -42,29 +42,29 @@
static void prvSetupTimerInterrupt( void ); static void prvSetupTimerInterrupt( void );
/* Interrupt service routines have to be in non-banked memory - as does the /* Interrupt service routines have to be in non-banked memory - as does the
* scheduler startup function. */ scheduler startup function. */
#pragma CODE_SEG __NEAR_SEG NON_BANKED #pragma CODE_SEG __NEAR_SEG NON_BANKED
/* Manual context switch function. This is the SWI ISR. */ /* Manual context switch function. This is the SWI ISR. */
void interrupt vPortYield( void ); void interrupt vPortYield( void );
/* Tick context switch function. This is the timer ISR. */ /* Tick context switch function. This is the timer ISR. */
void interrupt vPortTickInterrupt( void ); void interrupt vPortTickInterrupt( void );
/* Simply called by xPortStartScheduler(). xPortStartScheduler() does not /* Simply called by xPortStartScheduler(). xPortStartScheduler() does not
* start the scheduler directly because the header file containing the start the scheduler directly because the header file containing the
* xPortStartScheduler() prototype is part of the common kernel code, and xPortStartScheduler() prototype is part of the common kernel code, and
* therefore cannot use the CODE_SEG pragma. */ therefore cannot use the CODE_SEG pragma. */
static BaseType_t xBankedStartScheduler( void ); static BaseType_t xBankedStartScheduler( void );
#pragma CODE_SEG DEFAULT #pragma CODE_SEG DEFAULT
/* Calls to portENTER_CRITICAL() can be nested. When they are nested the /* Calls to portENTER_CRITICAL() can be nested. When they are nested the
* critical section should not be left (i.e. interrupts should not be re-enabled) critical section should not be left (i.e. interrupts should not be re-enabled)
* until the nesting depth reaches 0. This variable simply tracks the nesting until the nesting depth reaches 0. This variable simply tracks the nesting
* depth. Each task maintains it's own critical nesting depth variable so depth. Each task maintains it's own critical nesting depth variable so
* uxCriticalNesting is saved and restored from the task stack during a context uxCriticalNesting is saved and restored from the task stack during a context
* switch. */ switch. */
volatile UBaseType_t uxCriticalNesting = 0xff; volatile UBaseType_t uxCriticalNesting = 0xff;
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -72,98 +72,96 @@ volatile UBaseType_t uxCriticalNesting = 0xff;
/* /*
* See header file for description. * See header file for description.
*/ */
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
TaskFunction_t pxCode,
void * pvParameters )
{ {
/* /*
* Place a few bytes of known values on the bottom of the stack. Place a few bytes of known values on the bottom of the stack.
* This can be uncommented to provide useful stack markers when debugging. This can be uncommented to provide useful stack markers when debugging.
*
* pxTopOfStack = ( StackType_t ) 0x11; *pxTopOfStack = ( StackType_t ) 0x11;
* pxTopOfStack--; pxTopOfStack--;
* pxTopOfStack = ( StackType_t ) 0x22; *pxTopOfStack = ( StackType_t ) 0x22;
* pxTopOfStack--; pxTopOfStack--;
* pxTopOfStack = ( StackType_t ) 0x33; *pxTopOfStack = ( StackType_t ) 0x33;
* pxTopOfStack--; pxTopOfStack--;
*/ */
/* Setup the initial stack of the task. The stack is set exactly as /* Setup the initial stack of the task. The stack is set exactly as
* expected by the portRESTORE_CONTEXT() macro. In this case the stack as expected by the portRESTORE_CONTEXT() macro. In this case the stack as
* expected by the HCS12 RTI instruction. */ expected by the HCS12 RTI instruction. */
/* The address of the task function is placed in the stack byte at a time. */ /* The address of the task function is placed in the stack byte at a time. */
*pxTopOfStack = ( StackType_t ) *( ( ( StackType_t * ) ( &pxCode ) ) + 1 ); *pxTopOfStack = ( StackType_t ) *( ((StackType_t *) (&pxCode) ) + 1 );
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) *( ( ( StackType_t * ) ( &pxCode ) ) + 0 ); *pxTopOfStack = ( StackType_t ) *( ((StackType_t *) (&pxCode) ) + 0 );
pxTopOfStack--; pxTopOfStack--;
/* Next are all the registers that form part of the task context. */ /* Next are all the registers that form part of the task context. */
/* Y register */ /* Y register */
*pxTopOfStack = ( StackType_t ) 0xff; *pxTopOfStack = ( StackType_t ) 0xff;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xee; *pxTopOfStack = ( StackType_t ) 0xee;
pxTopOfStack--; pxTopOfStack--;
/* X register */ /* X register */
*pxTopOfStack = ( StackType_t ) 0xdd; *pxTopOfStack = ( StackType_t ) 0xdd;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xcc; *pxTopOfStack = ( StackType_t ) 0xcc;
pxTopOfStack--; pxTopOfStack--;
/* A register contains parameter high byte. */ /* A register contains parameter high byte. */
*pxTopOfStack = ( StackType_t ) *( ( ( StackType_t * ) ( &pvParameters ) ) + 0 ); *pxTopOfStack = ( StackType_t ) *( ((StackType_t *) (&pvParameters) ) + 0 );
pxTopOfStack--; pxTopOfStack--;
/* B register contains parameter low byte. */ /* B register contains parameter low byte. */
*pxTopOfStack = ( StackType_t ) *( ( ( StackType_t * ) ( &pvParameters ) ) + 1 ); *pxTopOfStack = ( StackType_t ) *( ((StackType_t *) (&pvParameters) ) + 1 );
pxTopOfStack--; pxTopOfStack--;
/* CCR: Note that when the task starts interrupts will be enabled since /* CCR: Note that when the task starts interrupts will be enabled since
* "I" bit of CCR is cleared */ "I" bit of CCR is cleared */
*pxTopOfStack = ( StackType_t ) 0x00; *pxTopOfStack = ( StackType_t ) 0x00;
pxTopOfStack--; pxTopOfStack--;
#ifdef BANKED_MODEL #ifdef BANKED_MODEL
/* The page of the task. */ /* The page of the task. */
*pxTopOfStack = ( StackType_t ) ( ( int ) pxCode ); *pxTopOfStack = ( StackType_t ) ( ( int ) pxCode );
pxTopOfStack--; pxTopOfStack--;
#endif #endif
/* Finally the critical nesting depth is initialised with 0 (not within /* Finally the critical nesting depth is initialised with 0 (not within
* a critical section). */ a critical section). */
*pxTopOfStack = ( StackType_t ) 0x00; *pxTopOfStack = ( StackType_t ) 0x00;
return pxTopOfStack; return pxTopOfStack;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortEndScheduler( void ) void vPortEndScheduler( void )
{ {
/* It is unlikely that the HCS12 port will get stopped. */ /* It is unlikely that the HCS12 port will get stopped. */
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
static void prvSetupTimerInterrupt( void ) static void prvSetupTimerInterrupt( void )
{ {
TickTimer_SetFreqHz( configTICK_RATE_HZ ); TickTimer_SetFreqHz( configTICK_RATE_HZ );
TickTimer_Enable(); TickTimer_Enable();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
BaseType_t xPortStartScheduler( void ) BaseType_t xPortStartScheduler( void )
{ {
/* xPortStartScheduler() does not start the scheduler directly because /* xPortStartScheduler() does not start the scheduler directly because
* the header file containing the xPortStartScheduler() prototype is part the header file containing the xPortStartScheduler() prototype is part
* of the common kernel code, and therefore cannot use the CODE_SEG pragma. of the common kernel code, and therefore cannot use the CODE_SEG pragma.
* Instead it simply calls the locally defined xBankedStartScheduler() - Instead it simply calls the locally defined xBankedStartScheduler() -
* which does use the CODE_SEG pragma. */ which does use the CODE_SEG pragma. */
return xBankedStartScheduler(); return xBankedStartScheduler();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -171,18 +169,18 @@ BaseType_t xPortStartScheduler( void )
static BaseType_t xBankedStartScheduler( void ) static BaseType_t xBankedStartScheduler( void )
{ {
/* Configure the timer that will generate the RTOS tick. Interrupts are /* Configure the timer that will generate the RTOS tick. Interrupts are
* disabled when this function is called. */ disabled when this function is called. */
prvSetupTimerInterrupt(); prvSetupTimerInterrupt();
/* Restore the context of the first task. */ /* Restore the context of the first task. */
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
/* Simulate the end of an interrupt to start the scheduler off. */ /* Simulate the end of an interrupt to start the scheduler off. */
__asm( "rti" ); __asm( "rti" );
/* Should not get here! */ /* Should not get here! */
return pdFALSE; return pdFALSE;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -196,9 +194,9 @@ static BaseType_t xBankedStartScheduler( void )
*/ */
void interrupt vPortYield( void ) void interrupt vPortYield( void )
{ {
portSAVE_CONTEXT(); portSAVE_CONTEXT();
vTaskSwitchContext(); vTaskSwitchContext();
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -209,29 +207,31 @@ void interrupt vPortYield( void )
*/ */
void interrupt vPortTickInterrupt( void ) void interrupt vPortTickInterrupt( void )
{ {
#if configUSE_PREEMPTION == 1 #if configUSE_PREEMPTION == 1
{ {
/* A context switch might happen so save the context. */ /* A context switch might happen so save the context. */
portSAVE_CONTEXT(); portSAVE_CONTEXT();
/* Increment the tick ... */ /* Increment the tick ... */
if( xTaskIncrementTick() != pdFALSE ) if( xTaskIncrementTick() != pdFALSE )
{ {
vTaskSwitchContext(); vTaskSwitchContext();
} }
TFLG1 = 1; TFLG1 = 1;
/* Restore the context of a task - which may be a different task /* Restore the context of a task - which may be a different task
* to that interrupted. */ to that interrupted. */
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
} }
#else /* if configUSE_PREEMPTION == 1 */ #else
{ {
xTaskIncrementTick(); xTaskIncrementTick();
TFLG1 = 1; TFLG1 = 1;
} }
#endif /* if configUSE_PREEMPTION == 1 */ #endif
} }
#pragma CODE_SEG DEFAULT #pragma CODE_SEG DEFAULT

216
portable/CodeWarrior/HCS12/portmacro.h
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
@ -40,38 +40,38 @@
*/ */
/* Type definitions. */ /* Type definitions. */
#define portCHAR char #define portCHAR char
#define portFLOAT float #define portFLOAT float
#define portDOUBLE double #define portDOUBLE double
#define portLONG long #define portLONG long
#define portSHORT short #define portSHORT short
#define portSTACK_TYPE uint8_t #define portSTACK_TYPE uint8_t
#define portBASE_TYPE char #define portBASE_TYPE char
typedef portSTACK_TYPE StackType_t; typedef portSTACK_TYPE StackType_t;
typedef signed char BaseType_t; typedef signed char BaseType_t;
typedef unsigned char UBaseType_t; typedef unsigned char UBaseType_t;
#if ( configUSE_16_BIT_TICKS == 1 ) #if( configUSE_16_BIT_TICKS == 1 )
typedef uint16_t TickType_t; typedef uint16_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffff #define portMAX_DELAY ( TickType_t ) 0xffff
#else #else
typedef uint32_t TickType_t; typedef uint32_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
#endif #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Hardware specifics. */ /* Hardware specifics. */
#define portBYTE_ALIGNMENT 1 #define portBYTE_ALIGNMENT 1
#define portSTACK_GROWTH ( -1 ) #define portSTACK_GROWTH ( -1 )
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
#define portYIELD() __asm( "swi" ); #define portYIELD() __asm( "swi" );
#define portNOP() __asm( "nop" ); #define portNOP() __asm( "nop" );
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Critical section handling. */ /* Critical section handling. */
#define portENABLE_INTERRUPTS() __asm( "cli" ) #define portENABLE_INTERRUPTS() __asm( "cli" )
#define portDISABLE_INTERRUPTS() __asm( "sei" ) #define portDISABLE_INTERRUPTS() __asm( "sei" )
/* /*
* Disable interrupts before incrementing the count of critical section nesting. * Disable interrupts before incrementing the count of critical section nesting.
@ -79,29 +79,29 @@ typedef unsigned char UBaseType_t;
* re-enabled. Once interrupts are disabled the nesting count can be accessed * re-enabled. Once interrupts are disabled the nesting count can be accessed
* directly. Each task maintains its own nesting count. * directly. Each task maintains its own nesting count.
*/ */
#define portENTER_CRITICAL() \ #define portENTER_CRITICAL() \
{ \ { \
extern volatile UBaseType_t uxCriticalNesting; \ extern volatile UBaseType_t uxCriticalNesting; \
\ \
portDISABLE_INTERRUPTS(); \ portDISABLE_INTERRUPTS(); \
uxCriticalNesting++; \ uxCriticalNesting++; \
} }
/* /*
* Interrupts are disabled so we can access the nesting count directly. If the * Interrupts are disabled so we can access the nesting count directly. If the
* nesting is found to be 0 (no nesting) then we are leaving the critical * nesting is found to be 0 (no nesting) then we are leaving the critical
* section and interrupts can be re-enabled. * section and interrupts can be re-enabled.
*/ */
#define portEXIT_CRITICAL() \ #define portEXIT_CRITICAL() \
{ \ { \
extern volatile UBaseType_t uxCriticalNesting; \ extern volatile UBaseType_t uxCriticalNesting; \
\ \
uxCriticalNesting--; \ uxCriticalNesting--; \
if( uxCriticalNesting == 0 ) \ if( uxCriticalNesting == 0 ) \
{ \ { \
portENABLE_INTERRUPTS(); \ portENABLE_INTERRUPTS(); \
} \ } \
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Task utilities. */ /* Task utilities. */
@ -117,71 +117,70 @@ typedef unsigned char UBaseType_t;
*/ */
#ifdef BANKED_MODEL #ifdef BANKED_MODEL
/*
* Load the stack pointer for the task, then pull the critical nesting
* count and PPAGE register from the stack. The remains of the
* context are restored by the RTI instruction.
*/
#define portRESTORE_CONTEXT() \
{ \
extern volatile void * pxCurrentTCB; \
extern volatile UBaseType_t uxCriticalNesting; \
\
__asm( "ldx pxCurrentTCB" ); \
__asm( "lds 0, x" ); \
__asm( "pula" ); \
__asm( "staa uxCriticalNesting" ); \
__asm( "pula" ); \
__asm( "staa 0x30" ); /* 0x30 = PPAGE */ \
}
/* /*
* Load the stack pointer for the task, then pull the critical nesting * By the time this macro is called the processor has already stacked the
* count and PPAGE register from the stack. The remains of the * registers. Simply stack the nesting count and PPAGE value, then save
* context are restored by the RTI instruction. * the task stack pointer.
*/ */
#define portRESTORE_CONTEXT() \ #define portSAVE_CONTEXT() \
{ \ { \
extern volatile void * pxCurrentTCB; \ extern volatile void * pxCurrentTCB; \
extern volatile UBaseType_t uxCriticalNesting; \ extern volatile UBaseType_t uxCriticalNesting; \
\ \
__asm( "ldx pxCurrentTCB" ); \ __asm( "ldaa 0x30" ); /* 0x30 = PPAGE */ \
__asm( "lds 0, x" ); \ __asm( "psha" ); \
__asm( "pula" ); \ __asm( "ldaa uxCriticalNesting" ); \
__asm( "staa uxCriticalNesting" ); \ __asm( "psha" ); \
__asm( "pula" ); \ __asm( "ldx pxCurrentTCB" ); \
__asm( "staa 0x30" ); /* 0x30 = PPAGE */ \ __asm( "sts 0, x" ); \
} }
#else
/* /*
* By the time this macro is called the processor has already stacked the * These macros are as per the BANKED versions above, but without saving
* registers. Simply stack the nesting count and PPAGE value, then save * and restoring the PPAGE register.
* the task stack pointer. */
*/
#define portSAVE_CONTEXT() \
{ \
extern volatile void * pxCurrentTCB; \
extern volatile UBaseType_t uxCriticalNesting; \
\
__asm( "ldaa 0x30" ); /* 0x30 = PPAGE */ \
__asm( "psha" ); \
__asm( "ldaa uxCriticalNesting" ); \
__asm( "psha" ); \
__asm( "ldx pxCurrentTCB" ); \
__asm( "sts 0, x" ); \
}
#else /* ifdef BANKED_MODEL */
/* #define portRESTORE_CONTEXT() \
* These macros are as per the BANKED versions above, but without saving { \
* and restoring the PPAGE register. extern volatile void * pxCurrentTCB; \
*/ extern volatile UBaseType_t uxCriticalNesting; \
\
__asm( "ldx pxCurrentTCB" ); \
__asm( "lds 0, x" ); \
__asm( "pula" ); \
__asm( "staa uxCriticalNesting" ); \
}
#define portRESTORE_CONTEXT() \ #define portSAVE_CONTEXT() \
{ \ { \
extern volatile void * pxCurrentTCB; \ extern volatile void * pxCurrentTCB; \
extern volatile UBaseType_t uxCriticalNesting; \ extern volatile UBaseType_t uxCriticalNesting; \
\ \
__asm( "ldx pxCurrentTCB" ); \ __asm( "ldaa uxCriticalNesting" ); \
__asm( "lds 0, x" ); \ __asm( "psha" ); \
__asm( "pula" ); \ __asm( "ldx pxCurrentTCB" ); \
__asm( "staa uxCriticalNesting" ); \ __asm( "sts 0, x" ); \
} }
#endif
#define portSAVE_CONTEXT() \
{ \
extern volatile void * pxCurrentTCB; \
extern volatile UBaseType_t uxCriticalNesting; \
\
__asm( "ldaa uxCriticalNesting" ); \
__asm( "psha" ); \
__asm( "ldx pxCurrentTCB" ); \
__asm( "sts 0, x" ); \
}
#endif /* ifdef BANKED_MODEL */
/* /*
* Utility macro to call macros above in correct order in order to perform a * Utility macro to call macros above in correct order in order to perform a
@ -189,14 +188,15 @@ typedef unsigned char UBaseType_t;
* the ISR does not use any local (stack) variables. If the ISR uses stack * the ISR does not use any local (stack) variables. If the ISR uses stack
* variables portYIELD() should be used in it's place. * variables portYIELD() should be used in it's place.
*/ */
#define portTASK_SWITCH_FROM_ISR() \ #define portTASK_SWITCH_FROM_ISR() \
portSAVE_CONTEXT(); \ portSAVE_CONTEXT(); \
vTaskSwitchContext(); \ vTaskSwitchContext(); \
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
/* Task function macros as described on the FreeRTOS.org WEB site. */ /* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
#endif /* PORTMACRO_H */ #endif /* PORTMACRO_H */

36
portable/Common/mpu_wrappers.c
View file

@ -19,10 +19,9 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces!
*/ */
/* /*
@ -68,7 +67,7 @@ BaseType_t xPortRaisePrivilege( void ) /* FREERTOS_SYSTEM_CALL */
xRunningPrivileged = portIS_PRIVILEGED(); xRunningPrivileged = portIS_PRIVILEGED();
/* If the processor is not already privileged, raise privilege. */ /* If the processor is not already privileged, raise privilege. */
if( xRunningPrivileged != pdTRUE ) if( xRunningPrivileged == pdFALSE )
{ {
portRAISE_PRIVILEGE(); portRAISE_PRIVILEGE();
} }
@ -79,7 +78,7 @@ BaseType_t xPortRaisePrivilege( void ) /* FREERTOS_SYSTEM_CALL */
void vPortResetPrivilege( BaseType_t xRunningPrivileged ) void vPortResetPrivilege( BaseType_t xRunningPrivileged )
{ {
if( xRunningPrivileged != pdTRUE ) if( xRunningPrivileged == pdFALSE )
{ {
portRESET_PRIVILEGE(); portRESET_PRIVILEGE();
} }
@ -958,33 +957,6 @@ void MPU_vQueueDelete( QueueHandle_t xQueue ) /* FREERTOS_SYSTEM_CALL */
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
void * MPU_pvPortMalloc( size_t xSize ) /* FREERTOS_SYSTEM_CALL */
{
void * pvReturn;
BaseType_t xRunningPrivileged = xPortRaisePrivilege();
pvReturn = pvPortMalloc( xSize );
vPortResetPrivilege( xRunningPrivileged );
return pvReturn;
}
#endif /* configSUPPORT_DYNAMIC_ALLOCATION */
/*-----------------------------------------------------------*/
#if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
void MPU_vPortFree( void * pv ) /* FREERTOS_SYSTEM_CALL */
{
BaseType_t xRunningPrivileged = xPortRaisePrivilege();
vPortFree( pv );
vPortResetPrivilege( xRunningPrivileged );
}
#endif /* configSUPPORT_DYNAMIC_ALLOCATION */
/*-----------------------------------------------------------*/
#if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) #if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
void MPU_vPortInitialiseBlocks( void ) /* FREERTOS_SYSTEM_CALL */ void MPU_vPortInitialiseBlocks( void ) /* FREERTOS_SYSTEM_CALL */
{ {

267
portable/GCC/ARM7_AT91FR40008/port.c
View file

@ -19,21 +19,21 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Implementation of functions defined in portable.h for the Atmel AT91R40008 * Implementation of functions defined in portable.h for the Atmel AT91R40008
* port. * port.
* *
* Components that can be compiled to either ARM or THUMB mode are * Components that can be compiled to either ARM or THUMB mode are
* contained in this file. The ISR routines, which can only be compiled * contained in this file. The ISR routines, which can only be compiled
* to ARM mode are contained in portISR.c. * to ARM mode are contained in portISR.c.
*----------------------------------------------------------*/ *----------------------------------------------------------*/
/* Standard includes. */ /* Standard includes. */
#include <stdlib.h> #include <stdlib.h>
@ -49,11 +49,11 @@
#include "tc.h" #include "tc.h"
/* Constants required to setup the task context. */ /* Constants required to setup the task context. */
#define portINITIAL_SPSR ( ( StackType_t ) 0x1f ) /* System mode, ARM mode, interrupts enabled. */ #define portINITIAL_SPSR ( ( StackType_t ) 0x1f ) /* System mode, ARM mode, interrupts enabled. */
#define portTHUMB_MODE_BIT ( ( StackType_t ) 0x20 ) #define portTHUMB_MODE_BIT ( ( StackType_t ) 0x20 )
#define portINSTRUCTION_SIZE ( ( StackType_t ) 4 ) #define portINSTRUCTION_SIZE ( ( StackType_t ) 4 )
#define portNO_CRITICAL_SECTION_NESTING ( ( StackType_t ) 0 ) #define portNO_CRITICAL_SECTION_NESTING ( ( StackType_t ) 0 )
#define portTICK_PRIORITY_6 ( 6 ) #define portTICK_PRIORITY_6 ( 6 )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Setup the timer to generate the tick interrupts. */ /* Setup the timer to generate the tick interrupts. */
@ -73,102 +73,100 @@ extern void vPortISRStartFirstTask( void );
* *
* See header file for description. * See header file for description.
*/ */
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
TaskFunction_t pxCode,
void * pvParameters )
{ {
StackType_t * pxOriginalTOS; StackType_t *pxOriginalTOS;
pxOriginalTOS = pxTopOfStack; pxOriginalTOS = pxTopOfStack;
/* To ensure asserts in tasks.c don't fail, although in this case the assert /* To ensure asserts in tasks.c don't fail, although in this case the assert
* is not really required. */ is not really required. */
pxTopOfStack--; pxTopOfStack--;
/* Setup the initial stack of the task. The stack is set exactly as /* Setup the initial stack of the task. The stack is set exactly as
* expected by the portRESTORE_CONTEXT() macro. */ expected by the portRESTORE_CONTEXT() macro. */
/* First on the stack is the return address - which in this case is the /* First on the stack is the return address - which in this case is the
* start of the task. The offset is added to make the return address appear start of the task. The offset is added to make the return address appear
* as it would within an IRQ ISR. */ as it would within an IRQ ISR. */
*pxTopOfStack = ( StackType_t ) pxCode + portINSTRUCTION_SIZE; *pxTopOfStack = ( StackType_t ) pxCode + portINSTRUCTION_SIZE;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xaaaaaaaa; /* R14 */ *pxTopOfStack = ( StackType_t ) 0xaaaaaaaa; /* R14 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) pxOriginalTOS; /* Stack used when task starts goes in R13. */ *pxTopOfStack = ( StackType_t ) pxOriginalTOS; /* Stack used when task starts goes in R13. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x12121212; /* R12 */ *pxTopOfStack = ( StackType_t ) 0x12121212; /* R12 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x11111111; /* R11 */ *pxTopOfStack = ( StackType_t ) 0x11111111; /* R11 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x10101010; /* R10 */ *pxTopOfStack = ( StackType_t ) 0x10101010; /* R10 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x09090909; /* R9 */ *pxTopOfStack = ( StackType_t ) 0x09090909; /* R9 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x08080808; /* R8 */ *pxTopOfStack = ( StackType_t ) 0x08080808; /* R8 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x07070707; /* R7 */ *pxTopOfStack = ( StackType_t ) 0x07070707; /* R7 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x06060606; /* R6 */ *pxTopOfStack = ( StackType_t ) 0x06060606; /* R6 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x05050505; /* R5 */ *pxTopOfStack = ( StackType_t ) 0x05050505; /* R5 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x04040404; /* R4 */ *pxTopOfStack = ( StackType_t ) 0x04040404; /* R4 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x03030303; /* R3 */ *pxTopOfStack = ( StackType_t ) 0x03030303; /* R3 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x02020202; /* R2 */ *pxTopOfStack = ( StackType_t ) 0x02020202; /* R2 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x01010101; /* R1 */ *pxTopOfStack = ( StackType_t ) 0x01010101; /* R1 */
pxTopOfStack--; pxTopOfStack--;
/* When the task starts is will expect to find the function parameter in /* When the task starts is will expect to find the function parameter in
* R0. */ R0. */
*pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */ *pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */
pxTopOfStack--; pxTopOfStack--;
/* The last thing onto the stack is the status register, which is set for /* The last thing onto the stack is the status register, which is set for
* system mode, with interrupts enabled. */ system mode, with interrupts enabled. */
*pxTopOfStack = ( StackType_t ) portINITIAL_SPSR; *pxTopOfStack = ( StackType_t ) portINITIAL_SPSR;
#ifdef THUMB_INTERWORK #ifdef THUMB_INTERWORK
{ {
/* We want the task to start in thumb mode. */ /* We want the task to start in thumb mode. */
*pxTopOfStack |= portTHUMB_MODE_BIT; *pxTopOfStack |= portTHUMB_MODE_BIT;
} }
#endif #endif
pxTopOfStack--; pxTopOfStack--;
/* Some optimisation levels use the stack differently to others. This /* Some optimisation levels use the stack differently to others. This
* means the interrupt flags cannot always be stored on the stack and will means the interrupt flags cannot always be stored on the stack and will
* instead be stored in a variable, which is then saved as part of the instead be stored in a variable, which is then saved as part of the
* tasks context. */ tasks context. */
*pxTopOfStack = portNO_CRITICAL_SECTION_NESTING; *pxTopOfStack = portNO_CRITICAL_SECTION_NESTING;
return pxTopOfStack; return pxTopOfStack;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
BaseType_t xPortStartScheduler( void ) BaseType_t xPortStartScheduler( void )
{ {
/* Start the timer that generates the tick ISR. Interrupts are disabled /* Start the timer that generates the tick ISR. Interrupts are disabled
* here already. */ here already. */
prvSetupTimerInterrupt(); prvSetupTimerInterrupt();
/* Start the first task. */ /* Start the first task. */
vPortISRStartFirstTask(); vPortISRStartFirstTask();
/* Should not get here! */ /* Should not get here! */
return 0; return 0;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortEndScheduler( void ) void vPortEndScheduler( void )
{ {
/* It is unlikely that the ARM port will require this function as there /* It is unlikely that the ARM port will require this function as there
* is nothing to return to. */ is nothing to return to. */
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -177,63 +175,64 @@ void vPortEndScheduler( void )
*/ */
static void prvSetupTimerInterrupt( void ) static void prvSetupTimerInterrupt( void )
{ {
volatile uint32_t ulDummy; volatile uint32_t ulDummy;
/* Enable clock to the tick timer... */ /* Enable clock to the tick timer... */
AT91C_BASE_PS->PS_PCER = portTIMER_CLK_ENABLE_BIT; AT91C_BASE_PS->PS_PCER = portTIMER_CLK_ENABLE_BIT;
/* Stop the tick timer... */ /* Stop the tick timer... */
portTIMER_REG_BASE_PTR->TC_CCR = TC_CLKDIS; portTIMER_REG_BASE_PTR->TC_CCR = TC_CLKDIS;
/* Start with tick timer interrupts disabled... */ /* Start with tick timer interrupts disabled... */
portTIMER_REG_BASE_PTR->TC_IDR = 0xFFFFFFFF; portTIMER_REG_BASE_PTR->TC_IDR = 0xFFFFFFFF;
/* Clear any pending tick timer interrupts... */ /* Clear any pending tick timer interrupts... */
ulDummy = portTIMER_REG_BASE_PTR->TC_SR; ulDummy = portTIMER_REG_BASE_PTR->TC_SR;
/* Store interrupt handler function address in tick timer vector register... /* Store interrupt handler function address in tick timer vector register...
* The ISR installed depends on whether the preemptive or cooperative The ISR installed depends on whether the preemptive or cooperative
* scheduler is being used. */ scheduler is being used. */
#if configUSE_PREEMPTION == 1 #if configUSE_PREEMPTION == 1
{ {
extern void( vPreemptiveTick )( void ); extern void ( vPreemptiveTick )( void );
AT91C_BASE_AIC->AIC_SVR[ portTIMER_AIC_CHANNEL ] = ( uint32_t ) vPreemptiveTick; AT91C_BASE_AIC->AIC_SVR[portTIMER_AIC_CHANNEL] = ( uint32_t ) vPreemptiveTick;
} }
#else // else use cooperative scheduler #else // else use cooperative scheduler
{ {
extern void( vNonPreemptiveTick )( void ); extern void ( vNonPreemptiveTick )( void );
AT91C_BASE_AIC->AIC_SVR[ portTIMER_AIC_CHANNEL ] = ( uint32_t ) vNonPreemptiveTick; AT91C_BASE_AIC->AIC_SVR[portTIMER_AIC_CHANNEL] = ( uint32_t ) vNonPreemptiveTick;
} }
#endif #endif
/* Tick timer interrupt level-sensitive, priority 6... */ /* Tick timer interrupt level-sensitive, priority 6... */
AT91C_BASE_AIC->AIC_SMR[ portTIMER_AIC_CHANNEL ] = AIC_SRCTYPE_INT_LEVEL_SENSITIVE | portTICK_PRIORITY_6; AT91C_BASE_AIC->AIC_SMR[ portTIMER_AIC_CHANNEL ] = AIC_SRCTYPE_INT_LEVEL_SENSITIVE | portTICK_PRIORITY_6;
/* Enable the tick timer interrupt... /* Enable the tick timer interrupt...
*
* First at timer level */
portTIMER_REG_BASE_PTR->TC_IER = TC_CPCS;
/* Then at the AIC level. */ First at timer level */
AT91C_BASE_AIC->AIC_IECR = ( 1 << portTIMER_AIC_CHANNEL ); portTIMER_REG_BASE_PTR->TC_IER = TC_CPCS;
/* Calculate timer compare value to achieve the desired tick rate... */ /* Then at the AIC level. */
if( ( configCPU_CLOCK_HZ / ( configTICK_RATE_HZ * 2 ) ) <= 0xFFFF ) AT91C_BASE_AIC->AIC_IECR = (1 << portTIMER_AIC_CHANNEL);
{
/* The tick rate is fast enough for us to use the faster timer input
* clock (main clock / 2). */
portTIMER_REG_BASE_PTR->TC_CMR = TC_WAVE | TC_CLKS_MCK2 | TC_BURST_NONE | TC_CPCTRG;
portTIMER_REG_BASE_PTR->TC_RC = configCPU_CLOCK_HZ / ( configTICK_RATE_HZ * 2 );
}
else
{
/* We must use a slower timer input clock (main clock / 8) because the
* tick rate is too slow for the faster input clock. */
portTIMER_REG_BASE_PTR->TC_CMR = TC_WAVE | TC_CLKS_MCK8 | TC_BURST_NONE | TC_CPCTRG;
portTIMER_REG_BASE_PTR->TC_RC = configCPU_CLOCK_HZ / ( configTICK_RATE_HZ * 8 );
}
/* Start tick timer... */ /* Calculate timer compare value to achieve the desired tick rate... */
portTIMER_REG_BASE_PTR->TC_CCR = TC_SWTRG | TC_CLKEN; if( (configCPU_CLOCK_HZ / (configTICK_RATE_HZ * 2) ) <= 0xFFFF )
{
/* The tick rate is fast enough for us to use the faster timer input
clock (main clock / 2). */
portTIMER_REG_BASE_PTR->TC_CMR = TC_WAVE | TC_CLKS_MCK2 | TC_BURST_NONE | TC_CPCTRG;
portTIMER_REG_BASE_PTR->TC_RC = configCPU_CLOCK_HZ / (configTICK_RATE_HZ * 2);
}
else
{
/* We must use a slower timer input clock (main clock / 8) because the
tick rate is too slow for the faster input clock. */
portTIMER_REG_BASE_PTR->TC_CMR = TC_WAVE | TC_CLKS_MCK8 | TC_BURST_NONE | TC_CPCTRG;
portTIMER_REG_BASE_PTR->TC_RC = configCPU_CLOCK_HZ / (configTICK_RATE_HZ * 8);
}
/* Start tick timer... */
portTIMER_REG_BASE_PTR->TC_CCR = TC_SWTRG | TC_CLKEN;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/

235
portable/GCC/ARM7_AT91FR40008/portISR.c
View file

@ -19,25 +19,25 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Components that can be compiled to either ARM or THUMB mode are * Components that can be compiled to either ARM or THUMB mode are
* contained in port.c The ISR routines, which can only be compiled * contained in port.c The ISR routines, which can only be compiled
* to ARM mode, are contained in this file. * to ARM mode, are contained in this file.
*----------------------------------------------------------*/ *----------------------------------------------------------*/
/* /*
* Changes from V3.2.4 Changes from V3.2.4
*
+ The assembler statements are now included in a single asm block rather + The assembler statements are now included in a single asm block rather
+ than each line having its own asm block. than each line having its own asm block.
*/ */
/* Scheduler includes. */ /* Scheduler includes. */
@ -45,16 +45,16 @@
#include "task.h" #include "task.h"
/* Constants required to handle interrupts. */ /* Constants required to handle interrupts. */
#define portCLEAR_AIC_INTERRUPT ( ( uint32_t ) 0 ) #define portCLEAR_AIC_INTERRUPT ( ( uint32_t ) 0 )
/* Constants required to handle critical sections. */ /* Constants required to handle critical sections. */
#define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 ) #define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 )
volatile uint32_t ulCriticalNesting = 9999UL; volatile uint32_t ulCriticalNesting = 9999UL;
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* ISR to handle manual context switches (from a call to taskYIELD()). */ /* ISR to handle manual context switches (from a call to taskYIELD()). */
void vPortYieldProcessor( void ) __attribute__( ( interrupt( "SWI" ), naked ) ); void vPortYieldProcessor( void ) __attribute__((interrupt("SWI"), naked));
/* /*
* The scheduler can only be started from ARM mode, hence the inclusion of this * The scheduler can only be started from ARM mode, hence the inclusion of this
@ -65,9 +65,9 @@ void vPortISRStartFirstTask( void );
void vPortISRStartFirstTask( void ) void vPortISRStartFirstTask( void )
{ {
/* Simply start the scheduler. This is included here as it can only be /* Simply start the scheduler. This is included here as it can only be
* called from ARM mode. */ called from ARM mode. */
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -81,19 +81,19 @@ void vPortISRStartFirstTask( void )
*/ */
void vPortYieldProcessor( void ) void vPortYieldProcessor( void )
{ {
/* Within an IRQ ISR the link register has an offset from the true return /* Within an IRQ ISR the link register has an offset from the true return
* address, but an SWI ISR does not. Add the offset manually so the same address, but an SWI ISR does not. Add the offset manually so the same
* ISR return code can be used in both cases. */ ISR return code can be used in both cases. */
asm volatile ( "ADD LR, LR, #4"); asm volatile ( "ADD LR, LR, #4" );
/* Perform the context switch. First save the context of the current task. */ /* Perform the context switch. First save the context of the current task. */
portSAVE_CONTEXT(); portSAVE_CONTEXT();
/* Find the highest priority task that is ready to run. */ /* Find the highest priority task that is ready to run. */
vTaskSwitchContext(); vTaskSwitchContext();
/* Restore the context of the new task. */ /* Restore the context of the new task. */
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -104,54 +104,54 @@ void vPortYieldProcessor( void )
#if configUSE_PREEMPTION == 0 #if configUSE_PREEMPTION == 0
/* The cooperative scheduler requires a normal IRQ service routine to /* The cooperative scheduler requires a normal IRQ service routine to
* simply increment the system tick. */ simply increment the system tick. */
void vNonPreemptiveTick( void ) __attribute__( ( interrupt( "IRQ" ) ) ); void vNonPreemptiveTick( void ) __attribute__ ((interrupt ("IRQ")));
void vNonPreemptiveTick( void ) void vNonPreemptiveTick( void )
{ {
static volatile uint32_t ulDummy; static volatile uint32_t ulDummy;
/* Clear tick timer interrupt indication. */ /* Clear tick timer interrupt indication. */
ulDummy = portTIMER_REG_BASE_PTR->TC_SR; ulDummy = portTIMER_REG_BASE_PTR->TC_SR;
xTaskIncrementTick(); xTaskIncrementTick();
/* Acknowledge the interrupt at AIC level... */ /* Acknowledge the interrupt at AIC level... */
AT91C_BASE_AIC->AIC_EOICR = portCLEAR_AIC_INTERRUPT; AT91C_BASE_AIC->AIC_EOICR = portCLEAR_AIC_INTERRUPT;
} }
#else /* else preemption is turned on */ #else /* else preemption is turned on */
/* The preemptive scheduler is defined as "naked" as the full context is /* The preemptive scheduler is defined as "naked" as the full context is
* saved on entry as part of the context switch. */ saved on entry as part of the context switch. */
void vPreemptiveTick( void ) __attribute__( ( naked ) ); void vPreemptiveTick( void ) __attribute__((naked));
void vPreemptiveTick( void ) void vPreemptiveTick( void )
{ {
/* Save the context of the interrupted task. */ /* Save the context of the interrupted task. */
portSAVE_CONTEXT(); portSAVE_CONTEXT();
/* WARNING - Do not use local (stack) variables here. Use globals /* WARNING - Do not use local (stack) variables here. Use globals
* if you must! */ if you must! */
static volatile uint32_t ulDummy; static volatile uint32_t ulDummy;
/* Clear tick timer interrupt indication. */ /* Clear tick timer interrupt indication. */
ulDummy = portTIMER_REG_BASE_PTR->TC_SR; ulDummy = portTIMER_REG_BASE_PTR->TC_SR;
/* Increment the RTOS tick count, then look for the highest priority /* Increment the RTOS tick count, then look for the highest priority
* task that is ready to run. */ task that is ready to run. */
if( xTaskIncrementTick() != pdFALSE ) if( xTaskIncrementTick() != pdFALSE )
{ {
vTaskSwitchContext(); vTaskSwitchContext();
} }
/* Acknowledge the interrupt at AIC level... */ /* Acknowledge the interrupt at AIC level... */
AT91C_BASE_AIC->AIC_EOICR = portCLEAR_AIC_INTERRUPT; AT91C_BASE_AIC->AIC_EOICR = portCLEAR_AIC_INTERRUPT;
/* Restore the context of the new task. */ /* Restore the context of the new task. */
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
} }
#endif /* if configUSE_PREEMPTION == 0 */ #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* /*
@ -162,71 +162,72 @@ void vPortYieldProcessor( void )
*/ */
#ifdef THUMB_INTERWORK #ifdef THUMB_INTERWORK
void vPortDisableInterruptsFromThumb( void ) __attribute__( ( naked ) ); void vPortDisableInterruptsFromThumb( void ) __attribute__ ((naked));
void vPortEnableInterruptsFromThumb( void ) __attribute__( ( naked ) ); void vPortEnableInterruptsFromThumb( void ) __attribute__ ((naked));
void vPortDisableInterruptsFromThumb( void ) void vPortDisableInterruptsFromThumb( void )
{ {
asm volatile ( asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"ORR R0, R0, #0xC0 \n\t"/* Disable IRQ, FIQ. */ "ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0} \n\t"/* Pop R0. */ "LDMIA SP!, {R0} \n\t" /* Pop R0. */
"BX R14"); /* Return back to thumb. */ "BX R14" ); /* Return back to thumb. */
} }
void vPortEnableInterruptsFromThumb( void ) void vPortEnableInterruptsFromThumb( void )
{ {
asm volatile ( asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"BIC R0, R0, #0xC0 \n\t"/* Enable IRQ, FIQ. */ "BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0} \n\t"/* Pop R0. */ "LDMIA SP!, {R0} \n\t" /* Pop R0. */
"BX R14"); /* Return back to thumb. */ "BX R14" ); /* Return back to thumb. */
} }
#endif /* THUMB_INTERWORK */ #endif /* THUMB_INTERWORK */
/* The code generated by the GCC compiler uses the stack in different ways at /* The code generated by the GCC compiler uses the stack in different ways at
* different optimisation levels. The interrupt flags can therefore not always different optimisation levels. The interrupt flags can therefore not always
* be saved to the stack. Instead the critical section nesting level is stored be saved to the stack. Instead the critical section nesting level is stored
* in a variable, which is then saved as part of the stack context. */ in a variable, which is then saved as part of the stack context. */
void vPortEnterCritical( void ) void vPortEnterCritical( void )
{ {
/* Disable interrupts as per portDISABLE_INTERRUPTS(); */ /* Disable interrupts as per portDISABLE_INTERRUPTS(); */
asm volatile ( asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"ORR R0, R0, #0xC0 \n\t"/* Disable IRQ, FIQ. */ "ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0}"); /* Pop R0. */ "LDMIA SP!, {R0}" ); /* Pop R0. */
/* Now interrupts are disabled ulCriticalNesting can be accessed /* Now interrupts are disabled ulCriticalNesting can be accessed
* directly. Increment ulCriticalNesting to keep a count of how many times directly. Increment ulCriticalNesting to keep a count of how many times
* portENTER_CRITICAL() has been called. */ portENTER_CRITICAL() has been called. */
ulCriticalNesting++; ulCriticalNesting++;
} }
void vPortExitCritical( void ) void vPortExitCritical( void )
{ {
if( ulCriticalNesting > portNO_CRITICAL_NESTING ) if( ulCriticalNesting > portNO_CRITICAL_NESTING )
{ {
/* Decrement the nesting count as we are leaving a critical section. */ /* Decrement the nesting count as we are leaving a critical section. */
ulCriticalNesting--; ulCriticalNesting--;
/* If the nesting level has reached zero then interrupts should be /* If the nesting level has reached zero then interrupts should be
* re-enabled. */ re-enabled. */
if( ulCriticalNesting == portNO_CRITICAL_NESTING ) if( ulCriticalNesting == portNO_CRITICAL_NESTING )
{ {
/* Enable interrupts as per portEXIT_CRITICAL(). */ /* Enable interrupts as per portEXIT_CRITICAL(). */
asm volatile ( asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"BIC R0, R0, #0xC0 \n\t"/* Enable IRQ, FIQ. */ "BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0}"); /* Pop R0. */ "LDMIA SP!, {R0}" ); /* Pop R0. */
} }
} }
} }

327
portable/GCC/ARM7_AT91FR40008/portmacro.h
View file

@ -19,41 +19,41 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
/* /*
* Changes from V3.2.3 Changes from V3.2.3
*
+ Modified portENTER_SWITCHING_ISR() to allow use with GCC V4.0.1. + Modified portENTER_SWITCHING_ISR() to allow use with GCC V4.0.1.
+
+ Changes from V3.2.4 Changes from V3.2.4
+
+ Removed the use of the %0 parameter within the assembler macros and + Removed the use of the %0 parameter within the assembler macros and
+ replaced them with hard coded registers. This will ensure the replaced them with hard coded registers. This will ensure the
+ assembler does not select the link register as the temp register as assembler does not select the link register as the temp register as
+ was occasionally happening previously. was occasionally happening previously.
+
+ The assembler statements are now included in a single asm block rather + The assembler statements are now included in a single asm block rather
+ than each line having its own asm block. than each line having its own asm block.
+
+ Changes from V4.5.0 Changes from V4.5.0
+
+ Removed the portENTER_SWITCHING_ISR() and portEXIT_SWITCHING_ISR() macros + Removed the portENTER_SWITCHING_ISR() and portEXIT_SWITCHING_ISR() macros
+ and replaced them with portYIELD_FROM_ISR() macro. Application code and replaced them with portYIELD_FROM_ISR() macro. Application code
+ should now make use of the portSAVE_CONTEXT() and portRESTORE_CONTEXT() should now make use of the portSAVE_CONTEXT() and portRESTORE_CONTEXT()
+ macros as per the V4.5.1 demo code. macros as per the V4.5.1 demo code.
*/ */
#ifndef PORTMACRO_H #ifndef PORTMACRO_H
#define PORTMACRO_H #define PORTMACRO_H
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Port specific definitions. * Port specific definitions.
@ -66,42 +66,42 @@
*/ */
/* Type definitions. */ /* Type definitions. */
#define portCHAR char #define portCHAR char
#define portFLOAT float #define portFLOAT float
#define portDOUBLE double #define portDOUBLE double
#define portLONG long #define portLONG long
#define portSHORT short #define portSHORT short
#define portSTACK_TYPE uint32_t #define portSTACK_TYPE uint32_t
#define portBASE_TYPE long #define portBASE_TYPE long
typedef portSTACK_TYPE StackType_t; typedef portSTACK_TYPE StackType_t;
typedef long BaseType_t; typedef long BaseType_t;
typedef unsigned long UBaseType_t; typedef unsigned long UBaseType_t;
#if ( configUSE_16_BIT_TICKS == 1 ) #if( configUSE_16_BIT_TICKS == 1 )
typedef uint16_t TickType_t; typedef uint16_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffff #define portMAX_DELAY ( TickType_t ) 0xffff
#else #else
typedef uint32_t TickType_t; typedef uint32_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
#endif #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Hardware specifics. */ /* Hardware specifics. */
#define portSTACK_GROWTH ( -1 ) #define portSTACK_GROWTH ( -1 )
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
#define portBYTE_ALIGNMENT 8 #define portBYTE_ALIGNMENT 8
#define portYIELD() asm volatile ( "SWI 0" ) #define portYIELD() asm volatile ( "SWI 0" )
#define portNOP() asm volatile ( "NOP" ) #define portNOP() asm volatile ( "NOP" )
/* /*
* These define the timer to use for generating the tick interrupt. * These define the timer to use for generating the tick interrupt.
* They are put in this file so they can be shared between "port.c" * They are put in this file so they can be shared between "port.c"
* and "portisr.c". * and "portisr.c".
*/ */
#define portTIMER_REG_BASE_PTR AT91C_BASE_TC0 #define portTIMER_REG_BASE_PTR AT91C_BASE_TC0
#define portTIMER_CLK_ENABLE_BIT AT91C_PS_TC0 #define portTIMER_CLK_ENABLE_BIT AT91C_PS_TC0
#define portTIMER_AIC_CHANNEL ( ( uint32_t ) 4 ) #define portTIMER_AIC_CHANNEL ( ( uint32_t ) 4 )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Task utilities. */ /* Task utilities. */
@ -113,90 +113,90 @@
* THUMB mode code will result in a compile time error. * THUMB mode code will result in a compile time error.
*/ */
#define portRESTORE_CONTEXT() \ #define portRESTORE_CONTEXT() \
{ \ { \
extern volatile void * volatile pxCurrentTCB; \ extern volatile void * volatile pxCurrentTCB; \
extern volatile uint32_t ulCriticalNesting; \ extern volatile uint32_t ulCriticalNesting; \
\ \
/* Set the LR to the task stack. */ \ /* Set the LR to the task stack. */ \
asm volatile ( \ asm volatile ( \
"LDR R0, =pxCurrentTCB \n\t"\ "LDR R0, =pxCurrentTCB \n\t" \
"LDR R0, [R0] \n\t"\ "LDR R0, [R0] \n\t" \
"LDR LR, [R0] \n\t"\ "LDR LR, [R0] \n\t" \
\ \
/* The critical nesting depth is the first item on the stack. */ \ /* The critical nesting depth is the first item on the stack. */ \
/* Load it into the ulCriticalNesting variable. */ \ /* Load it into the ulCriticalNesting variable. */ \
"LDR R0, =ulCriticalNesting \n\t"\ "LDR R0, =ulCriticalNesting \n\t" \
"LDMFD LR!, {R1} \n\t"\ "LDMFD LR!, {R1} \n\t" \
"STR R1, [R0] \n\t"\ "STR R1, [R0] \n\t" \
\ \
/* Get the SPSR from the stack. */ \ /* Get the SPSR from the stack. */ \
"LDMFD LR!, {R0} \n\t"\ "LDMFD LR!, {R0} \n\t" \
"MSR SPSR, R0 \n\t"\ "MSR SPSR, R0 \n\t" \
\ \
/* Restore all system mode registers for the task. */ \ /* Restore all system mode registers for the task. */ \
"LDMFD LR, {R0-R14}^ \n\t"\ "LDMFD LR, {R0-R14}^ \n\t" \
"NOP \n\t"\ "NOP \n\t" \
\ \
/* Restore the return address. */ \ /* Restore the return address. */ \
"LDR LR, [LR, #+60] \n\t"\ "LDR LR, [LR, #+60] \n\t" \
\ \
/* And return - correcting the offset in the LR to obtain the */ \ /* And return - correcting the offset in the LR to obtain the */ \
/* correct address. */ \ /* correct address. */ \
"SUBS PC, LR, #4 \n\t"\ "SUBS PC, LR, #4 \n\t" \
); \ ); \
( void ) ulCriticalNesting; \ ( void ) ulCriticalNesting; \
( void ) pxCurrentTCB; \ ( void ) pxCurrentTCB; \
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#define portSAVE_CONTEXT() \ #define portSAVE_CONTEXT() \
{ \ { \
extern volatile void * volatile pxCurrentTCB; \ extern volatile void * volatile pxCurrentTCB; \
extern volatile uint32_t ulCriticalNesting; \ extern volatile uint32_t ulCriticalNesting; \
\ \
/* Push R0 as we are going to use the register. */ \ /* Push R0 as we are going to use the register. */ \
asm volatile ( \ asm volatile ( \
"STMDB SP!, {R0} \n\t"\ "STMDB SP!, {R0} \n\t" \
\ \
/* Set R0 to point to the task stack pointer. */ \ /* Set R0 to point to the task stack pointer. */ \
"STMDB SP,{SP}^ \n\t"\ "STMDB SP,{SP}^ \n\t" \
"NOP \n\t"\ "NOP \n\t" \
"SUB SP, SP, #4 \n\t"\ "SUB SP, SP, #4 \n\t" \
"LDMIA SP!,{R0} \n\t"\ "LDMIA SP!,{R0} \n\t" \
\ \
/* Push the return address onto the stack. */ \ /* Push the return address onto the stack. */ \
"STMDB R0!, {LR} \n\t"\ "STMDB R0!, {LR} \n\t" \
\ \
/* Now we have saved LR we can use it instead of R0. */ \ /* Now we have saved LR we can use it instead of R0. */ \
"MOV LR, R0 \n\t"\ "MOV LR, R0 \n\t" \
\ \
/* Pop R0 so we can save it onto the system mode stack. */ \ /* Pop R0 so we can save it onto the system mode stack. */ \
"LDMIA SP!, {R0} \n\t"\ "LDMIA SP!, {R0} \n\t" \
\ \
/* Push all the system mode registers onto the task stack. */ \ /* Push all the system mode registers onto the task stack. */ \
"STMDB LR,{R0-LR}^ \n\t"\ "STMDB LR,{R0-LR}^ \n\t" \
"NOP \n\t"\ "NOP \n\t" \
"SUB LR, LR, #60 \n\t"\ "SUB LR, LR, #60 \n\t" \
\ \
/* Push the SPSR onto the task stack. */ \ /* Push the SPSR onto the task stack. */ \
"MRS R0, SPSR \n\t"\ "MRS R0, SPSR \n\t" \
"STMDB LR!, {R0} \n\t"\ "STMDB LR!, {R0} \n\t" \
\ \
"LDR R0, =ulCriticalNesting \n\t"\ "LDR R0, =ulCriticalNesting \n\t" \
"LDR R0, [R0] \n\t"\ "LDR R0, [R0] \n\t" \
"STMDB LR!, {R0} \n\t"\ "STMDB LR!, {R0} \n\t" \
\ \
/* Store the new top of stack for the task. */ \ /* Store the new top of stack for the task. */ \
"LDR R0, =pxCurrentTCB \n\t"\ "LDR R0, =pxCurrentTCB \n\t" \
"LDR R0, [R0] \n\t"\ "LDR R0, [R0] \n\t" \
"STR LR, [R0] \n\t"\ "STR LR, [R0] \n\t" \
); \ ); \
( void ) ulCriticalNesting; \ ( void ) ulCriticalNesting; \
( void ) pxCurrentTCB; \ ( void ) pxCurrentTCB; \
} }
#define portYIELD_FROM_ISR() vTaskSwitchContext() #define portYIELD_FROM_ISR() vTaskSwitchContext()
/* Critical section handling. */ /* Critical section handling. */
@ -207,48 +207,49 @@
* defined then the utilities are defined as macros here - as per other ports. * defined then the utilities are defined as macros here - as per other ports.
*/ */
#ifdef THUMB_INTERWORK #ifdef THUMB_INTERWORK
extern void vPortDisableInterruptsFromThumb( void ) __attribute__( ( naked ) ); extern void vPortDisableInterruptsFromThumb( void ) __attribute__ ((naked));
extern void vPortEnableInterruptsFromThumb( void ) __attribute__( ( naked ) ); extern void vPortEnableInterruptsFromThumb( void ) __attribute__ ((naked));
#define portDISABLE_INTERRUPTS() vPortDisableInterruptsFromThumb() #define portDISABLE_INTERRUPTS() vPortDisableInterruptsFromThumb()
#define portENABLE_INTERRUPTS() vPortEnableInterruptsFromThumb() #define portENABLE_INTERRUPTS() vPortEnableInterruptsFromThumb()
#else #else
#define portDISABLE_INTERRUPTS() \ #define portDISABLE_INTERRUPTS() \
asm volatile ( \ asm volatile ( \
"STMDB SP!, {R0} \n\t"/* Push R0. */\ "STMDB SP!, {R0} \n\t" /* Push R0. */ \
"MRS R0, CPSR \n\t"/* Get CPSR. */\ "MRS R0, CPSR \n\t" /* Get CPSR. */ \
"ORR R0, R0, #0xC0 \n\t"/* Disable IRQ, FIQ. */\ "ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */ \
"MSR CPSR, R0 \n\t"/* Write back modified value. */\ "MSR CPSR, R0 \n\t" /* Write back modified value. */ \
"LDMIA SP!, {R0} ") /* Pop R0. */ "LDMIA SP!, {R0} " ) /* Pop R0. */
#define portENABLE_INTERRUPTS() \ #define portENABLE_INTERRUPTS() \
asm volatile ( \ asm volatile ( \
"STMDB SP!, {R0} \n\t"/* Push R0. */\ "STMDB SP!, {R0} \n\t" /* Push R0. */ \
"MRS R0, CPSR \n\t"/* Get CPSR. */\ "MRS R0, CPSR \n\t" /* Get CPSR. */ \
"BIC R0, R0, #0xC0 \n\t"/* Enable IRQ, FIQ. */\ "BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */ \
"MSR CPSR, R0 \n\t"/* Write back modified value. */\ "MSR CPSR, R0 \n\t" /* Write back modified value. */ \
"LDMIA SP!, {R0} ") /* Pop R0. */ "LDMIA SP!, {R0} " ) /* Pop R0. */
#endif /* THUMB_INTERWORK */ #endif /* THUMB_INTERWORK */
extern void vPortEnterCritical( void ); extern void vPortEnterCritical( void );
extern void vPortExitCritical( void ); extern void vPortExitCritical( void );
#define portENTER_CRITICAL() vPortEnterCritical(); #define portENTER_CRITICAL() vPortEnterCritical();
#define portEXIT_CRITICAL() vPortExitCritical(); #define portEXIT_CRITICAL() vPortExitCritical();
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Task function macros as described on the FreeRTOS.org WEB site. */ /* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif
#endif /* PORTMACRO_H */ #endif /* PORTMACRO_H */

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@ -1,50 +1,51 @@
/** ---------------------------------------------------------------------------- */ //* ----------------------------------------------------------------------------
/** ATMEL Microcontroller Software Support - ROUSSET - */ //* ATMEL Microcontroller Software Support - ROUSSET -
/** ---------------------------------------------------------------------------- */ //* ----------------------------------------------------------------------------
/** DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */ //* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
/** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ //* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
/** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */ //* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
/** DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */ //* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
/** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */ //* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
/** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */ //* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
/** OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */ //* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
/** LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */ //* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
/** NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */ //* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
/** EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ //* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
/** ---------------------------------------------------------------------------- */ //* ----------------------------------------------------------------------------
/** File Name : lib_AT91SAM7X256.h */ //* File Name : lib_AT91SAM7X256.h
/** Object : AT91SAM7X256 inlined functions */ //* Object : AT91SAM7X256 inlined functions
/** Generated : AT91 SW Application Group 05/20/2005 (16:22:29) */ //* Generated : AT91 SW Application Group 05/20/2005 (16:22:29)
/** */ //*
/** CVS Reference : /lib_dbgu.h/1.1/Fri Jan 31 12:18:40 2003// */ //* CVS Reference : /lib_dbgu.h/1.1/Fri Jan 31 12:18:40 2003//
/** CVS Reference : /lib_pmc_SAM7X.h/1.1/Tue Feb 1 08:32:10 2005// */ //* CVS Reference : /lib_pmc_SAM7X.h/1.1/Tue Feb 1 08:32:10 2005//
/** CVS Reference : /lib_VREG_6085B.h/1.1/Tue Feb 1 16:20:47 2005// */ //* CVS Reference : /lib_VREG_6085B.h/1.1/Tue Feb 1 16:20:47 2005//
/** CVS Reference : /lib_rstc_6098A.h/1.1/Wed Oct 6 10:39:20 2004// */ //* CVS Reference : /lib_rstc_6098A.h/1.1/Wed Oct 6 10:39:20 2004//
/** CVS Reference : /lib_ssc.h/1.4/Fri Jan 31 12:19:20 2003// */ //* CVS Reference : /lib_ssc.h/1.4/Fri Jan 31 12:19:20 2003//
/** CVS Reference : /lib_wdtc_6080A.h/1.1/Wed Oct 6 10:38:30 2004// */ //* CVS Reference : /lib_wdtc_6080A.h/1.1/Wed Oct 6 10:38:30 2004//
/** CVS Reference : /lib_usart.h/1.5/Thu Nov 21 16:01:54 2002// */ //* CVS Reference : /lib_usart.h/1.5/Thu Nov 21 16:01:54 2002//
/** CVS Reference : /lib_spi2.h/1.1/Mon Aug 25 14:23:52 2003// */ //* CVS Reference : /lib_spi2.h/1.1/Mon Aug 25 14:23:52 2003//
/** CVS Reference : /lib_pitc_6079A.h/1.2/Tue Nov 9 14:43:56 2004// */ //* CVS Reference : /lib_pitc_6079A.h/1.2/Tue Nov 9 14:43:56 2004//
/** CVS Reference : /lib_aic_6075b.h/1.1/Fri May 20 14:01:19 2005// */ //* CVS Reference : /lib_aic_6075b.h/1.1/Fri May 20 14:01:19 2005//
/** CVS Reference : /lib_aes_6149a.h/1.1/Mon Jan 17 07:43:09 2005// */ //* CVS Reference : /lib_aes_6149a.h/1.1/Mon Jan 17 07:43:09 2005//
/** CVS Reference : /lib_twi.h/1.3/Mon Jul 19 14:27:58 2004// */ //* CVS Reference : /lib_twi.h/1.3/Mon Jul 19 14:27:58 2004//
/** CVS Reference : /lib_adc.h/1.6/Fri Oct 17 09:12:38 2003// */ //* CVS Reference : /lib_adc.h/1.6/Fri Oct 17 09:12:38 2003//
/** CVS Reference : /lib_rttc_6081A.h/1.1/Wed Oct 6 10:39:38 2004// */ //* CVS Reference : /lib_rttc_6081A.h/1.1/Wed Oct 6 10:39:38 2004//
/** CVS Reference : /lib_udp.h/1.4/Wed Feb 16 08:39:34 2005// */ //* CVS Reference : /lib_udp.h/1.4/Wed Feb 16 08:39:34 2005//
/** CVS Reference : /lib_des3_6150a.h/1.1/Mon Jan 17 09:19:19 2005// */ //* CVS Reference : /lib_des3_6150a.h/1.1/Mon Jan 17 09:19:19 2005//
/** CVS Reference : /lib_tc_1753b.h/1.1/Fri Jan 31 12:20:02 2003// */ //* CVS Reference : /lib_tc_1753b.h/1.1/Fri Jan 31 12:20:02 2003//
/** CVS Reference : /lib_MC_SAM7X.h/1.1/Thu Mar 25 15:19:14 2004// */ //* CVS Reference : /lib_MC_SAM7X.h/1.1/Thu Mar 25 15:19:14 2004//
/** CVS Reference : /lib_pio.h/1.3/Fri Jan 31 12:18:56 2003// */ //* CVS Reference : /lib_pio.h/1.3/Fri Jan 31 12:18:56 2003//
/** CVS Reference : /lib_can_AT91.h/1.4/Fri Oct 17 09:12:50 2003// */ //* CVS Reference : /lib_can_AT91.h/1.4/Fri Oct 17 09:12:50 2003//
/** CVS Reference : /lib_PWM_SAM.h/1.3/Thu Jan 22 10:10:50 2004// */ //* CVS Reference : /lib_PWM_SAM.h/1.3/Thu Jan 22 10:10:50 2004//
/** CVS Reference : /lib_pdc.h/1.2/Tue Jul 2 13:29:40 2002// */ //* CVS Reference : /lib_pdc.h/1.2/Tue Jul 2 13:29:40 2002//
/** ---------------------------------------------------------------------------- */ //* ----------------------------------------------------------------------------
#include "AT91SAM7X256.h" #include "AT91SAM7X256.h"
/**---------------------------------------------------------------------------- */ //*----------------------------------------------------------------------------
/** \fn AT91F_AIC_ConfigureIt */ //* \fn AT91F_AIC_ConfigureIt
/** \brief Interrupt Handler Initialization */ //* \brief Interrupt Handler Initialization
/**---------------------------------------------------------------------------- */ //*----------------------------------------------------------------------------

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@ -19,20 +19,20 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Implementation of functions defined in portable.h for the ARM7 port. * Implementation of functions defined in portable.h for the ARM7 port.
* *
* Components that can be compiled to either ARM or THUMB mode are * Components that can be compiled to either ARM or THUMB mode are
* contained in this file. The ISR routines, which can only be compiled * contained in this file. The ISR routines, which can only be compiled
* to ARM mode are contained in portISR.c. * to ARM mode are contained in portISR.c.
*----------------------------------------------------------*/ *----------------------------------------------------------*/
/* Standard includes. */ /* Standard includes. */
#include <stdlib.h> #include <stdlib.h>
@ -45,24 +45,24 @@
#include "AT91SAM7X256.h" #include "AT91SAM7X256.h"
/* Constants required to setup the task context. */ /* Constants required to setup the task context. */
#define portINITIAL_SPSR ( ( StackType_t ) 0x1f ) /* System mode, ARM mode, interrupts enabled. */ #define portINITIAL_SPSR ( ( StackType_t ) 0x1f ) /* System mode, ARM mode, interrupts enabled. */
#define portTHUMB_MODE_BIT ( ( StackType_t ) 0x20 ) #define portTHUMB_MODE_BIT ( ( StackType_t ) 0x20 )
#define portINSTRUCTION_SIZE ( ( StackType_t ) 4 ) #define portINSTRUCTION_SIZE ( ( StackType_t ) 4 )
#define portNO_CRITICAL_SECTION_NESTING ( ( StackType_t ) 0 ) #define portNO_CRITICAL_SECTION_NESTING ( ( StackType_t ) 0 )
/* Constants required to setup the tick ISR. */ /* Constants required to setup the tick ISR. */
#define portENABLE_TIMER ( ( uint8_t ) 0x01 ) #define portENABLE_TIMER ( ( uint8_t ) 0x01 )
#define portPRESCALE_VALUE 0x00 #define portPRESCALE_VALUE 0x00
#define portINTERRUPT_ON_MATCH ( ( uint32_t ) 0x01 ) #define portINTERRUPT_ON_MATCH ( ( uint32_t ) 0x01 )
#define portRESET_COUNT_ON_MATCH ( ( uint32_t ) 0x02 ) #define portRESET_COUNT_ON_MATCH ( ( uint32_t ) 0x02 )
/* Constants required to setup the PIT. */ /* Constants required to setup the PIT. */
#define portPIT_CLOCK_DIVISOR ( ( uint32_t ) 16 ) #define portPIT_CLOCK_DIVISOR ( ( uint32_t ) 16 )
#define portPIT_COUNTER_VALUE ( ( ( configCPU_CLOCK_HZ / portPIT_CLOCK_DIVISOR ) / 1000UL ) * portTICK_PERIOD_MS ) #define portPIT_COUNTER_VALUE ( ( ( configCPU_CLOCK_HZ / portPIT_CLOCK_DIVISOR ) / 1000UL ) * portTICK_PERIOD_MS )
#define portINT_LEVEL_SENSITIVE 0 #define portINT_LEVEL_SENSITIVE 0
#define portPIT_ENABLE ( ( uint16_t ) 0x1 << 24 ) #define portPIT_ENABLE ( ( uint16_t ) 0x1 << 24 )
#define portPIT_INT_ENABLE ( ( uint16_t ) 0x1 << 25 ) #define portPIT_INT_ENABLE ( ( uint16_t ) 0x1 << 25 )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Setup the timer to generate the tick interrupts. */ /* Setup the timer to generate the tick interrupts. */
@ -82,102 +82,100 @@ extern void vPortISRStartFirstTask( void );
* *
* See header file for description. * See header file for description.
*/ */
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
TaskFunction_t pxCode,
void * pvParameters )
{ {
StackType_t * pxOriginalTOS; StackType_t *pxOriginalTOS;
pxOriginalTOS = pxTopOfStack; pxOriginalTOS = pxTopOfStack;
/* To ensure asserts in tasks.c don't fail, although in this case the assert /* To ensure asserts in tasks.c don't fail, although in this case the assert
* is not really required. */ is not really required. */
pxTopOfStack--; pxTopOfStack--;
/* Setup the initial stack of the task. The stack is set exactly as /* Setup the initial stack of the task. The stack is set exactly as
* expected by the portRESTORE_CONTEXT() macro. */ expected by the portRESTORE_CONTEXT() macro. */
/* First on the stack is the return address - which in this case is the /* First on the stack is the return address - which in this case is the
* start of the task. The offset is added to make the return address appear start of the task. The offset is added to make the return address appear
* as it would within an IRQ ISR. */ as it would within an IRQ ISR. */
*pxTopOfStack = ( StackType_t ) pxCode + portINSTRUCTION_SIZE; *pxTopOfStack = ( StackType_t ) pxCode + portINSTRUCTION_SIZE;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x00000000; /* R14 */ *pxTopOfStack = ( StackType_t ) 0x00000000; /* R14 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) pxOriginalTOS; /* Stack used when task starts goes in R13. */ *pxTopOfStack = ( StackType_t ) pxOriginalTOS; /* Stack used when task starts goes in R13. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x12121212; /* R12 */ *pxTopOfStack = ( StackType_t ) 0x12121212; /* R12 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x11111111; /* R11 */ *pxTopOfStack = ( StackType_t ) 0x11111111; /* R11 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x10101010; /* R10 */ *pxTopOfStack = ( StackType_t ) 0x10101010; /* R10 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x09090909; /* R9 */ *pxTopOfStack = ( StackType_t ) 0x09090909; /* R9 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x08080808; /* R8 */ *pxTopOfStack = ( StackType_t ) 0x08080808; /* R8 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x07070707; /* R7 */ *pxTopOfStack = ( StackType_t ) 0x07070707; /* R7 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x06060606; /* R6 */ *pxTopOfStack = ( StackType_t ) 0x06060606; /* R6 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x05050505; /* R5 */ *pxTopOfStack = ( StackType_t ) 0x05050505; /* R5 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x04040404; /* R4 */ *pxTopOfStack = ( StackType_t ) 0x04040404; /* R4 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x03030303; /* R3 */ *pxTopOfStack = ( StackType_t ) 0x03030303; /* R3 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x02020202; /* R2 */ *pxTopOfStack = ( StackType_t ) 0x02020202; /* R2 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x01010101; /* R1 */ *pxTopOfStack = ( StackType_t ) 0x01010101; /* R1 */
pxTopOfStack--; pxTopOfStack--;
/* When the task starts is will expect to find the function parameter in /* When the task starts is will expect to find the function parameter in
* R0. */ R0. */
*pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */ *pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */
pxTopOfStack--; pxTopOfStack--;
/* The last thing onto the stack is the status register, which is set for /* The last thing onto the stack is the status register, which is set for
* system mode, with interrupts enabled. */ system mode, with interrupts enabled. */
*pxTopOfStack = ( StackType_t ) portINITIAL_SPSR; *pxTopOfStack = ( StackType_t ) portINITIAL_SPSR;
#ifdef THUMB_INTERWORK #ifdef THUMB_INTERWORK
{ {
/* We want the task to start in thumb mode. */ /* We want the task to start in thumb mode. */
*pxTopOfStack |= portTHUMB_MODE_BIT; *pxTopOfStack |= portTHUMB_MODE_BIT;
} }
#endif #endif
pxTopOfStack--; pxTopOfStack--;
/* Some optimisation levels use the stack differently to others. This /* Some optimisation levels use the stack differently to others. This
* means the interrupt flags cannot always be stored on the stack and will means the interrupt flags cannot always be stored on the stack and will
* instead be stored in a variable, which is then saved as part of the instead be stored in a variable, which is then saved as part of the
* tasks context. */ tasks context. */
*pxTopOfStack = portNO_CRITICAL_SECTION_NESTING; *pxTopOfStack = portNO_CRITICAL_SECTION_NESTING;
return pxTopOfStack; return pxTopOfStack;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
BaseType_t xPortStartScheduler( void ) BaseType_t xPortStartScheduler( void )
{ {
/* Start the timer that generates the tick ISR. Interrupts are disabled /* Start the timer that generates the tick ISR. Interrupts are disabled
* here already. */ here already. */
prvSetupTimerInterrupt(); prvSetupTimerInterrupt();
/* Start the first task. */ /* Start the first task. */
vPortISRStartFirstTask(); vPortISRStartFirstTask();
/* Should not get here! */ /* Should not get here! */
return 0; return 0;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortEndScheduler( void ) void vPortEndScheduler( void )
{ {
/* It is unlikely that the ARM port will require this function as there /* It is unlikely that the ARM port will require this function as there
* is nothing to return to. */ is nothing to return to. */
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -186,23 +184,30 @@ void vPortEndScheduler( void )
*/ */
static void prvSetupTimerInterrupt( void ) static void prvSetupTimerInterrupt( void )
{ {
AT91PS_PITC pxPIT = AT91C_BASE_PITC; AT91PS_PITC pxPIT = AT91C_BASE_PITC;
/* Setup the AIC for PIT interrupts. The interrupt routine chosen depends /* Setup the AIC for PIT interrupts. The interrupt routine chosen depends
* on whether the preemptive or cooperative scheduler is being used. */ on whether the preemptive or cooperative scheduler is being used. */
#if configUSE_PREEMPTION == 0 #if configUSE_PREEMPTION == 0
extern void( vNonPreemptiveTick ) ( void );
AT91F_AIC_ConfigureIt( AT91C_ID_SYS, AT91C_AIC_PRIOR_HIGHEST, portINT_LEVEL_SENSITIVE, ( void ( * )( void ) )vNonPreemptiveTick );
#else
extern void( vPreemptiveTick )( void );
AT91F_AIC_ConfigureIt( AT91C_ID_SYS, AT91C_AIC_PRIOR_HIGHEST, portINT_LEVEL_SENSITIVE, ( void ( * )( void ) )vPreemptiveTick );
#endif
/* Configure the PIT period. */ extern void ( vNonPreemptiveTick ) ( void );
pxPIT->PITC_PIMR = portPIT_ENABLE | portPIT_INT_ENABLE | portPIT_COUNTER_VALUE; AT91F_AIC_ConfigureIt( AT91C_ID_SYS, AT91C_AIC_PRIOR_HIGHEST, portINT_LEVEL_SENSITIVE, ( void (*)(void) ) vNonPreemptiveTick );
/* Enable the interrupt. Global interrupts are disables at this point so #else
* this is safe. */
extern void ( vPreemptiveTick )( void );
AT91F_AIC_ConfigureIt( AT91C_ID_SYS, AT91C_AIC_PRIOR_HIGHEST, portINT_LEVEL_SENSITIVE, ( void (*)(void) ) vPreemptiveTick );
#endif
/* Configure the PIT period. */
pxPIT->PITC_PIMR = portPIT_ENABLE | portPIT_INT_ENABLE | portPIT_COUNTER_VALUE;
/* Enable the interrupt. Global interrupts are disables at this point so
this is safe. */
AT91C_BASE_AIC->AIC_IECR = 0x1 << AT91C_ID_SYS; AT91C_BASE_AIC->AIC_IECR = 0x1 << AT91C_ID_SYS;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/

219
portable/GCC/ARM7_AT91SAM7S/portISR.c
View file

@ -19,25 +19,25 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Components that can be compiled to either ARM or THUMB mode are * Components that can be compiled to either ARM or THUMB mode are
* contained in port.c The ISR routines, which can only be compiled * contained in port.c The ISR routines, which can only be compiled
* to ARM mode, are contained in this file. * to ARM mode, are contained in this file.
*----------------------------------------------------------*/ *----------------------------------------------------------*/
/* /*
* Changes from V3.2.4 Changes from V3.2.4
*
+ The assembler statements are now included in a single asm block rather + The assembler statements are now included in a single asm block rather
+ than each line having its own asm block. than each line having its own asm block.
*/ */
/* Scheduler includes. */ /* Scheduler includes. */
#include "FreeRTOS.h" #include "FreeRTOS.h"
@ -46,17 +46,17 @@
#include "AT91SAM7X256.h" #include "AT91SAM7X256.h"
/* Constants required to handle interrupts. */ /* Constants required to handle interrupts. */
#define portTIMER_MATCH_ISR_BIT ( ( uint8_t ) 0x01 ) #define portTIMER_MATCH_ISR_BIT ( ( uint8_t ) 0x01 )
#define portCLEAR_VIC_INTERRUPT ( ( uint32_t ) 0 ) #define portCLEAR_VIC_INTERRUPT ( ( uint32_t ) 0 )
/* Constants required to handle critical sections. */ /* Constants required to handle critical sections. */
#define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 ) #define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 )
volatile uint32_t ulCriticalNesting = 9999UL; volatile uint32_t ulCriticalNesting = 9999UL;
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* ISR to handle manual context switches (from a call to taskYIELD()). */ /* ISR to handle manual context switches (from a call to taskYIELD()). */
void vPortYieldProcessor( void ) __attribute__( ( interrupt( "SWI" ), naked ) ); void vPortYieldProcessor( void ) __attribute__((interrupt("SWI"), naked));
/* /*
* The scheduler can only be started from ARM mode, hence the inclusion of this * The scheduler can only be started from ARM mode, hence the inclusion of this
@ -67,9 +67,9 @@ void vPortISRStartFirstTask( void );
void vPortISRStartFirstTask( void ) void vPortISRStartFirstTask( void )
{ {
/* Simply start the scheduler. This is included here as it can only be /* Simply start the scheduler. This is included here as it can only be
* called from ARM mode. */ called from ARM mode. */
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -83,19 +83,19 @@ void vPortISRStartFirstTask( void )
*/ */
void vPortYieldProcessor( void ) void vPortYieldProcessor( void )
{ {
/* Within an IRQ ISR the link register has an offset from the true return /* Within an IRQ ISR the link register has an offset from the true return
* address, but an SWI ISR does not. Add the offset manually so the same address, but an SWI ISR does not. Add the offset manually so the same
* ISR return code can be used in both cases. */ ISR return code can be used in both cases. */
__asm volatile ( "ADD LR, LR, #4"); __asm volatile ( "ADD LR, LR, #4" );
/* Perform the context switch. First save the context of the current task. */ /* Perform the context switch. First save the context of the current task. */
portSAVE_CONTEXT(); portSAVE_CONTEXT();
/* Find the highest priority task that is ready to run. */ /* Find the highest priority task that is ready to run. */
vTaskSwitchContext(); vTaskSwitchContext();
/* Restore the context of the new task. */ /* Restore the context of the new task. */
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -106,49 +106,49 @@ void vPortYieldProcessor( void )
#if configUSE_PREEMPTION == 0 #if configUSE_PREEMPTION == 0
/* The cooperative scheduler requires a normal IRQ service routine to /* The cooperative scheduler requires a normal IRQ service routine to
* simply increment the system tick. */ simply increment the system tick. */
void vNonPreemptiveTick( void ) __attribute__( ( interrupt( "IRQ" ) ) ); void vNonPreemptiveTick( void ) __attribute__ ((interrupt ("IRQ")));
void vNonPreemptiveTick( void ) void vNonPreemptiveTick( void )
{ {
uint32_t ulDummy; uint32_t ulDummy;
/* Increment the tick count - which may wake some tasks but as the /* Increment the tick count - which may wake some tasks but as the
* preemptive scheduler is not being used any woken task is not given preemptive scheduler is not being used any woken task is not given
* processor time no matter what its priority. */ processor time no matter what its priority. */
xTaskIncrementTick(); xTaskIncrementTick();
/* Clear the PIT interrupt. */ /* Clear the PIT interrupt. */
ulDummy = AT91C_BASE_PITC->PITC_PIVR; ulDummy = AT91C_BASE_PITC->PITC_PIVR;
/* End the interrupt in the AIC. */ /* End the interrupt in the AIC. */
AT91C_BASE_AIC->AIC_EOICR = ulDummy; AT91C_BASE_AIC->AIC_EOICR = ulDummy;
} }
#else /* if configUSE_PREEMPTION == 0 */ #else
/* The preemptive scheduler is defined as "naked" as the full context is /* The preemptive scheduler is defined as "naked" as the full context is
* saved on entry as part of the context switch. */ saved on entry as part of the context switch. */
void vPreemptiveTick( void ) __attribute__( ( naked ) ); void vPreemptiveTick( void ) __attribute__((naked));
void vPreemptiveTick( void ) void vPreemptiveTick( void )
{ {
/* Save the context of the current task. */ /* Save the context of the current task. */
portSAVE_CONTEXT(); portSAVE_CONTEXT();
/* Increment the tick count - this may wake a task. */ /* Increment the tick count - this may wake a task. */
if( xTaskIncrementTick() != pdFALSE ) if( xTaskIncrementTick() != pdFALSE )
{ {
/* Find the highest priority task that is ready to run. */ /* Find the highest priority task that is ready to run. */
vTaskSwitchContext(); vTaskSwitchContext();
} }
/* End the interrupt in the AIC. */ /* End the interrupt in the AIC. */
AT91C_BASE_AIC->AIC_EOICR = AT91C_BASE_PITC->PITC_PIVR; AT91C_BASE_AIC->AIC_EOICR = AT91C_BASE_PITC->PITC_PIVR;
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
} }
#endif /* if configUSE_PREEMPTION == 0 */ #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* /*
@ -157,70 +157,71 @@ void vPortYieldProcessor( void )
* ensure a switch to ARM mode. When THUMB_INTERWORK is not defined then * ensure a switch to ARM mode. When THUMB_INTERWORK is not defined then
* the utilities are defined as macros in portmacro.h - as per other ports. * the utilities are defined as macros in portmacro.h - as per other ports.
*/ */
void vPortDisableInterruptsFromThumb( void ) __attribute__( ( naked ) ); void vPortDisableInterruptsFromThumb( void ) __attribute__ ((naked));
void vPortEnableInterruptsFromThumb( void ) __attribute__( ( naked ) ); void vPortEnableInterruptsFromThumb( void ) __attribute__ ((naked));
void vPortDisableInterruptsFromThumb( void ) void vPortDisableInterruptsFromThumb( void )
{ {
__asm volatile ( __asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"ORR R0, R0, #0xC0 \n\t"/* Disable IRQ, FIQ. */ "ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0} \n\t"/* Pop R0. */ "LDMIA SP!, {R0} \n\t" /* Pop R0. */
"BX R14"); /* Return back to thumb. */ "BX R14" ); /* Return back to thumb. */
} }
void vPortEnableInterruptsFromThumb( void ) void vPortEnableInterruptsFromThumb( void )
{ {
__asm volatile ( __asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"BIC R0, R0, #0xC0 \n\t"/* Enable IRQ, FIQ. */ "BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0} \n\t"/* Pop R0. */ "LDMIA SP!, {R0} \n\t" /* Pop R0. */
"BX R14"); /* Return back to thumb. */ "BX R14" ); /* Return back to thumb. */
} }
/* The code generated by the GCC compiler uses the stack in different ways at /* The code generated by the GCC compiler uses the stack in different ways at
* different optimisation levels. The interrupt flags can therefore not always different optimisation levels. The interrupt flags can therefore not always
* be saved to the stack. Instead the critical section nesting level is stored be saved to the stack. Instead the critical section nesting level is stored
* in a variable, which is then saved as part of the stack context. */ in a variable, which is then saved as part of the stack context. */
void vPortEnterCritical( void ) void vPortEnterCritical( void )
{ {
/* Disable interrupts as per portDISABLE_INTERRUPTS(); */ /* Disable interrupts as per portDISABLE_INTERRUPTS(); */
__asm volatile ( __asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"ORR R0, R0, #0xC0 \n\t"/* Disable IRQ, FIQ. */ "ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0}"); /* Pop R0. */ "LDMIA SP!, {R0}" ); /* Pop R0. */
/* Now interrupts are disabled ulCriticalNesting can be accessed /* Now interrupts are disabled ulCriticalNesting can be accessed
* directly. Increment ulCriticalNesting to keep a count of how many times directly. Increment ulCriticalNesting to keep a count of how many times
* portENTER_CRITICAL() has been called. */ portENTER_CRITICAL() has been called. */
ulCriticalNesting++; ulCriticalNesting++;
} }
void vPortExitCritical( void ) void vPortExitCritical( void )
{ {
if( ulCriticalNesting > portNO_CRITICAL_NESTING ) if( ulCriticalNesting > portNO_CRITICAL_NESTING )
{ {
/* Decrement the nesting count as we are leaving a critical section. */ /* Decrement the nesting count as we are leaving a critical section. */
ulCriticalNesting--; ulCriticalNesting--;
/* If the nesting level has reached zero then interrupts should be /* If the nesting level has reached zero then interrupts should be
* re-enabled. */ re-enabled. */
if( ulCriticalNesting == portNO_CRITICAL_NESTING ) if( ulCriticalNesting == portNO_CRITICAL_NESTING )
{ {
/* Enable interrupts as per portEXIT_CRITICAL(). */ /* Enable interrupts as per portEXIT_CRITICAL(). */
__asm volatile ( __asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"BIC R0, R0, #0xC0 \n\t"/* Enable IRQ, FIQ. */ "BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0}"); /* Pop R0. */ "LDMIA SP!, {R0}" ); /* Pop R0. */
} }
} }
} }

321
portable/GCC/ARM7_AT91SAM7S/portmacro.h
View file

@ -19,41 +19,41 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
/* /*
* Changes from V3.2.3 Changes from V3.2.3
*
+ Modified portENTER_SWITCHING_ISR() to allow use with GCC V4.0.1. + Modified portENTER_SWITCHING_ISR() to allow use with GCC V4.0.1.
+
+ Changes from V3.2.4 Changes from V3.2.4
+
+ Removed the use of the %0 parameter within the assembler macros and + Removed the use of the %0 parameter within the assembler macros and
+ replaced them with hard coded registers. This will ensure the replaced them with hard coded registers. This will ensure the
+ assembler does not select the link register as the temp register as assembler does not select the link register as the temp register as
+ was occasionally happening previously. was occasionally happening previously.
+
+ The assembler statements are now included in a single asm block rather + The assembler statements are now included in a single asm block rather
+ than each line having its own asm block. than each line having its own asm block.
+
+ Changes from V4.5.0 Changes from V4.5.0
+
+ Removed the portENTER_SWITCHING_ISR() and portEXIT_SWITCHING_ISR() macros + Removed the portENTER_SWITCHING_ISR() and portEXIT_SWITCHING_ISR() macros
+ and replaced them with portYIELD_FROM_ISR() macro. Application code and replaced them with portYIELD_FROM_ISR() macro. Application code
+ should now make use of the portSAVE_CONTEXT() and portRESTORE_CONTEXT() should now make use of the portSAVE_CONTEXT() and portRESTORE_CONTEXT()
+ macros as per the V4.5.1 demo code. macros as per the V4.5.1 demo code.
*/ */
#ifndef PORTMACRO_H #ifndef PORTMACRO_H
#define PORTMACRO_H #define PORTMACRO_H
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Port specific definitions. * Port specific definitions.
@ -66,32 +66,32 @@
*/ */
/* Type definitions. */ /* Type definitions. */
#define portCHAR char #define portCHAR char
#define portFLOAT float #define portFLOAT float
#define portDOUBLE double #define portDOUBLE double
#define portLONG long #define portLONG long
#define portSHORT short #define portSHORT short
#define portSTACK_TYPE uint32_t #define portSTACK_TYPE uint32_t
#define portBASE_TYPE portLONG #define portBASE_TYPE portLONG
typedef portSTACK_TYPE StackType_t; typedef portSTACK_TYPE StackType_t;
typedef long BaseType_t; typedef long BaseType_t;
typedef unsigned long UBaseType_t; typedef unsigned long UBaseType_t;
#if ( configUSE_16_BIT_TICKS == 1 ) #if( configUSE_16_BIT_TICKS == 1 )
typedef uint16_t TickType_t; typedef uint16_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffff #define portMAX_DELAY ( TickType_t ) 0xffff
#else #else
typedef uint32_t TickType_t; typedef uint32_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
#endif #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Architecture specifics. */ /* Architecture specifics. */
#define portSTACK_GROWTH ( -1 ) #define portSTACK_GROWTH ( -1 )
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
#define portBYTE_ALIGNMENT 8 #define portBYTE_ALIGNMENT 8
#define portNOP() __asm volatile ( "NOP" ); #define portNOP() __asm volatile ( "NOP" );
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -104,92 +104,92 @@
* THUMB mode code will result in a compile time error. * THUMB mode code will result in a compile time error.
*/ */
#define portRESTORE_CONTEXT() \ #define portRESTORE_CONTEXT() \
{ \ { \
extern volatile void * volatile pxCurrentTCB; \ extern volatile void * volatile pxCurrentTCB; \
extern volatile uint32_t ulCriticalNesting; \ extern volatile uint32_t ulCriticalNesting; \
\ \
/* Set the LR to the task stack. */ \ /* Set the LR to the task stack. */ \
__asm volatile ( \ __asm volatile ( \
"LDR R0, =pxCurrentTCB \n\t"\ "LDR R0, =pxCurrentTCB \n\t" \
"LDR R0, [R0] \n\t"\ "LDR R0, [R0] \n\t" \
"LDR LR, [R0] \n\t"\ "LDR LR, [R0] \n\t" \
\ \
/* The critical nesting depth is the first item on the stack. */ \ /* The critical nesting depth is the first item on the stack. */ \
/* Load it into the ulCriticalNesting variable. */ \ /* Load it into the ulCriticalNesting variable. */ \
"LDR R0, =ulCriticalNesting \n\t"\ "LDR R0, =ulCriticalNesting \n\t" \
"LDMFD LR!, {R1} \n\t"\ "LDMFD LR!, {R1} \n\t" \
"STR R1, [R0] \n\t"\ "STR R1, [R0] \n\t" \
\ \
/* Get the SPSR from the stack. */ \ /* Get the SPSR from the stack. */ \
"LDMFD LR!, {R0} \n\t"\ "LDMFD LR!, {R0} \n\t" \
"MSR SPSR, R0 \n\t"\ "MSR SPSR, R0 \n\t" \
\ \
/* Restore all system mode registers for the task. */ \ /* Restore all system mode registers for the task. */ \
"LDMFD LR, {R0-R14}^ \n\t"\ "LDMFD LR, {R0-R14}^ \n\t" \
"NOP \n\t"\ "NOP \n\t" \
\ \
/* Restore the return address. */ \ /* Restore the return address. */ \
"LDR LR, [LR, #+60] \n\t"\ "LDR LR, [LR, #+60] \n\t" \
\ \
/* And return - correcting the offset in the LR to obtain the */ \ /* And return - correcting the offset in the LR to obtain the */ \
/* correct address. */ \ /* correct address. */ \
"SUBS PC, LR, #4 \n\t"\ "SUBS PC, LR, #4 \n\t" \
); \ ); \
( void ) ulCriticalNesting; \ ( void ) ulCriticalNesting; \
( void ) pxCurrentTCB; \ ( void ) pxCurrentTCB; \
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#define portSAVE_CONTEXT() \ #define portSAVE_CONTEXT() \
{ \ { \
extern volatile void * volatile pxCurrentTCB; \ extern volatile void * volatile pxCurrentTCB; \
extern volatile uint32_t ulCriticalNesting; \ extern volatile uint32_t ulCriticalNesting; \
\ \
/* Push R0 as we are going to use the register. */ \ /* Push R0 as we are going to use the register. */ \
__asm volatile ( \ __asm volatile ( \
"STMDB SP!, {R0} \n\t"\ "STMDB SP!, {R0} \n\t" \
\ \
/* Set R0 to point to the task stack pointer. */ \ /* Set R0 to point to the task stack pointer. */ \
"STMDB SP,{SP}^ \n\t"\ "STMDB SP,{SP}^ \n\t" \
"NOP \n\t"\ "NOP \n\t" \
"SUB SP, SP, #4 \n\t"\ "SUB SP, SP, #4 \n\t" \
"LDMIA SP!,{R0} \n\t"\ "LDMIA SP!,{R0} \n\t" \
\ \
/* Push the return address onto the stack. */ \ /* Push the return address onto the stack. */ \
"STMDB R0!, {LR} \n\t"\ "STMDB R0!, {LR} \n\t" \
\ \
/* Now we have saved LR we can use it instead of R0. */ \ /* Now we have saved LR we can use it instead of R0. */ \
"MOV LR, R0 \n\t"\ "MOV LR, R0 \n\t" \
\ \
/* Pop R0 so we can save it onto the system mode stack. */ \ /* Pop R0 so we can save it onto the system mode stack. */ \
"LDMIA SP!, {R0} \n\t"\ "LDMIA SP!, {R0} \n\t" \
\ \
/* Push all the system mode registers onto the task stack. */ \ /* Push all the system mode registers onto the task stack. */ \
"STMDB LR,{R0-LR}^ \n\t"\ "STMDB LR,{R0-LR}^ \n\t" \
"NOP \n\t"\ "NOP \n\t" \
"SUB LR, LR, #60 \n\t"\ "SUB LR, LR, #60 \n\t" \
\ \
/* Push the SPSR onto the task stack. */ \ /* Push the SPSR onto the task stack. */ \
"MRS R0, SPSR \n\t"\ "MRS R0, SPSR \n\t" \
"STMDB LR!, {R0} \n\t"\ "STMDB LR!, {R0} \n\t" \
\ \
"LDR R0, =ulCriticalNesting \n\t"\ "LDR R0, =ulCriticalNesting \n\t" \
"LDR R0, [R0] \n\t"\ "LDR R0, [R0] \n\t" \
"STMDB LR!, {R0} \n\t"\ "STMDB LR!, {R0} \n\t" \
\ \
/* Store the new top of stack for the task. */ \ /* Store the new top of stack for the task. */ \
"LDR R0, =pxCurrentTCB \n\t"\ "LDR R0, =pxCurrentTCB \n\t" \
"LDR R0, [R0] \n\t"\ "LDR R0, [R0] \n\t" \
"STR LR, [R0] \n\t"\ "STR LR, [R0] \n\t" \
); \ ); \
( void ) ulCriticalNesting; \ ( void ) ulCriticalNesting; \
( void ) pxCurrentTCB; \ ( void ) pxCurrentTCB; \
} }
#define portYIELD_FROM_ISR() vTaskSwitchContext() #define portYIELD_FROM_ISR() vTaskSwitchContext()
#define portYIELD() __asm volatile ( "SWI 0" ) #define portYIELD() __asm volatile ( "SWI 0" )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -202,47 +202,48 @@
* defined then the utilities are defined as macros here - as per other ports. * defined then the utilities are defined as macros here - as per other ports.
*/ */
#ifdef THUMB_INTERWORK #ifdef THUMB_INTERWORK
extern void vPortDisableInterruptsFromThumb( void ) __attribute__( ( naked ) ); extern void vPortDisableInterruptsFromThumb( void ) __attribute__ ((naked));
extern void vPortEnableInterruptsFromThumb( void ) __attribute__( ( naked ) ); extern void vPortEnableInterruptsFromThumb( void ) __attribute__ ((naked));
#define portDISABLE_INTERRUPTS() vPortDisableInterruptsFromThumb() #define portDISABLE_INTERRUPTS() vPortDisableInterruptsFromThumb()
#define portENABLE_INTERRUPTS() vPortEnableInterruptsFromThumb() #define portENABLE_INTERRUPTS() vPortEnableInterruptsFromThumb()
#else #else
#define portDISABLE_INTERRUPTS() \ #define portDISABLE_INTERRUPTS() \
__asm volatile ( \ __asm volatile ( \
"STMDB SP!, {R0} \n\t"/* Push R0. */\ "STMDB SP!, {R0} \n\t" /* Push R0. */ \
"MRS R0, CPSR \n\t"/* Get CPSR. */\ "MRS R0, CPSR \n\t" /* Get CPSR. */ \
"ORR R0, R0, #0xC0 \n\t"/* Disable IRQ, FIQ. */\ "ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */ \
"MSR CPSR, R0 \n\t"/* Write back modified value. */\ "MSR CPSR, R0 \n\t" /* Write back modified value. */ \
"LDMIA SP!, {R0} ") /* Pop R0. */ "LDMIA SP!, {R0} " ) /* Pop R0. */
#define portENABLE_INTERRUPTS() \ #define portENABLE_INTERRUPTS() \
__asm volatile ( \ __asm volatile ( \
"STMDB SP!, {R0} \n\t"/* Push R0. */\ "STMDB SP!, {R0} \n\t" /* Push R0. */ \
"MRS R0, CPSR \n\t"/* Get CPSR. */\ "MRS R0, CPSR \n\t" /* Get CPSR. */ \
"BIC R0, R0, #0xC0 \n\t"/* Enable IRQ, FIQ. */\ "BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */ \
"MSR CPSR, R0 \n\t"/* Write back modified value. */\ "MSR CPSR, R0 \n\t" /* Write back modified value. */ \
"LDMIA SP!, {R0} ") /* Pop R0. */ "LDMIA SP!, {R0} " ) /* Pop R0. */
#endif /* THUMB_INTERWORK */ #endif /* THUMB_INTERWORK */
extern void vPortEnterCritical( void ); extern void vPortEnterCritical( void );
extern void vPortExitCritical( void ); extern void vPortExitCritical( void );
#define portENTER_CRITICAL() vPortEnterCritical(); #define portENTER_CRITICAL() vPortEnterCritical();
#define portEXIT_CRITICAL() vPortExitCritical(); #define portEXIT_CRITICAL() vPortExitCritical();
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Task function macros as described on the FreeRTOS.org WEB site. */ /* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif
#endif /* PORTMACRO_H */ #endif /* PORTMACRO_H */

236
portable/GCC/ARM7_LPC2000/port.c
View file

@ -19,20 +19,20 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Implementation of functions defined in portable.h for the ARM7 port. * Implementation of functions defined in portable.h for the ARM7 port.
* *
* Components that can be compiled to either ARM or THUMB mode are * Components that can be compiled to either ARM or THUMB mode are
* contained in this file. The ISR routines, which can only be compiled * contained in this file. The ISR routines, which can only be compiled
* to ARM mode are contained in portISR.c. * to ARM mode are contained in portISR.c.
*----------------------------------------------------------*/ *----------------------------------------------------------*/
/* Standard includes. */ /* Standard includes. */
@ -43,21 +43,21 @@
#include "task.h" #include "task.h"
/* Constants required to setup the task context. */ /* Constants required to setup the task context. */
#define portINITIAL_SPSR ( ( StackType_t ) 0x1f ) /* System mode, ARM mode, interrupts enabled. */ #define portINITIAL_SPSR ( ( StackType_t ) 0x1f ) /* System mode, ARM mode, interrupts enabled. */
#define portTHUMB_MODE_BIT ( ( StackType_t ) 0x20 ) #define portTHUMB_MODE_BIT ( ( StackType_t ) 0x20 )
#define portINSTRUCTION_SIZE ( ( StackType_t ) 4 ) #define portINSTRUCTION_SIZE ( ( StackType_t ) 4 )
#define portNO_CRITICAL_SECTION_NESTING ( ( StackType_t ) 0 ) #define portNO_CRITICAL_SECTION_NESTING ( ( StackType_t ) 0 )
/* Constants required to setup the tick ISR. */ /* Constants required to setup the tick ISR. */
#define portENABLE_TIMER ( ( uint8_t ) 0x01 ) #define portENABLE_TIMER ( ( uint8_t ) 0x01 )
#define portPRESCALE_VALUE 0x00 #define portPRESCALE_VALUE 0x00
#define portINTERRUPT_ON_MATCH ( ( uint32_t ) 0x01 ) #define portINTERRUPT_ON_MATCH ( ( uint32_t ) 0x01 )
#define portRESET_COUNT_ON_MATCH ( ( uint32_t ) 0x02 ) #define portRESET_COUNT_ON_MATCH ( ( uint32_t ) 0x02 )
/* Constants required to setup the VIC for the tick ISR. */ /* Constants required to setup the VIC for the tick ISR. */
#define portTIMER_VIC_CHANNEL ( ( uint32_t ) 0x0004 ) #define portTIMER_VIC_CHANNEL ( ( uint32_t ) 0x0004 )
#define portTIMER_VIC_CHANNEL_BIT ( ( uint32_t ) 0x0010 ) #define portTIMER_VIC_CHANNEL_BIT ( ( uint32_t ) 0x0010 )
#define portTIMER_VIC_ENABLE ( ( uint32_t ) 0x0020 ) #define portTIMER_VIC_ENABLE ( ( uint32_t ) 0x0020 )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -78,101 +78,99 @@ extern void vPortISRStartFirstTask( void );
* *
* See header file for description. * See header file for description.
*/ */
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
TaskFunction_t pxCode,
void * pvParameters )
{ {
StackType_t * pxOriginalTOS; StackType_t *pxOriginalTOS;
pxOriginalTOS = pxTopOfStack; pxOriginalTOS = pxTopOfStack;
/* To ensure asserts in tasks.c don't fail, although in this case the assert /* To ensure asserts in tasks.c don't fail, although in this case the assert
* is not really required. */ is not really required. */
pxTopOfStack--; pxTopOfStack--;
/* Setup the initial stack of the task. The stack is set exactly as /* Setup the initial stack of the task. The stack is set exactly as
* expected by the portRESTORE_CONTEXT() macro. */ expected by the portRESTORE_CONTEXT() macro. */
/* First on the stack is the return address - which in this case is the /* First on the stack is the return address - which in this case is the
* start of the task. The offset is added to make the return address appear start of the task. The offset is added to make the return address appear
* as it would within an IRQ ISR. */ as it would within an IRQ ISR. */
*pxTopOfStack = ( StackType_t ) pxCode + portINSTRUCTION_SIZE; *pxTopOfStack = ( StackType_t ) pxCode + portINSTRUCTION_SIZE;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0xaaaaaaaa; /* R14 */ *pxTopOfStack = ( StackType_t ) 0xaaaaaaaa; /* R14 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) pxOriginalTOS; /* Stack used when task starts goes in R13. */ *pxTopOfStack = ( StackType_t ) pxOriginalTOS; /* Stack used when task starts goes in R13. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x12121212; /* R12 */ *pxTopOfStack = ( StackType_t ) 0x12121212; /* R12 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x11111111; /* R11 */ *pxTopOfStack = ( StackType_t ) 0x11111111; /* R11 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x10101010; /* R10 */ *pxTopOfStack = ( StackType_t ) 0x10101010; /* R10 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x09090909; /* R9 */ *pxTopOfStack = ( StackType_t ) 0x09090909; /* R9 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x08080808; /* R8 */ *pxTopOfStack = ( StackType_t ) 0x08080808; /* R8 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x07070707; /* R7 */ *pxTopOfStack = ( StackType_t ) 0x07070707; /* R7 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x06060606; /* R6 */ *pxTopOfStack = ( StackType_t ) 0x06060606; /* R6 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x05050505; /* R5 */ *pxTopOfStack = ( StackType_t ) 0x05050505; /* R5 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x04040404; /* R4 */ *pxTopOfStack = ( StackType_t ) 0x04040404; /* R4 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x03030303; /* R3 */ *pxTopOfStack = ( StackType_t ) 0x03030303; /* R3 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x02020202; /* R2 */ *pxTopOfStack = ( StackType_t ) 0x02020202; /* R2 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x01010101; /* R1 */ *pxTopOfStack = ( StackType_t ) 0x01010101; /* R1 */
pxTopOfStack--; pxTopOfStack--;
/* When the task starts is will expect to find the function parameter in /* When the task starts is will expect to find the function parameter in
* R0. */ R0. */
*pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */ *pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */
pxTopOfStack--; pxTopOfStack--;
/* The last thing onto the stack is the status register, which is set for /* The last thing onto the stack is the status register, which is set for
* system mode, with interrupts enabled. */ system mode, with interrupts enabled. */
*pxTopOfStack = ( StackType_t ) portINITIAL_SPSR; *pxTopOfStack = ( StackType_t ) portINITIAL_SPSR;
if( ( ( uint32_t ) pxCode & 0x01UL ) != 0x00 ) if( ( ( uint32_t ) pxCode & 0x01UL ) != 0x00 )
{ {
/* We want the task to start in thumb mode. */ /* We want the task to start in thumb mode. */
*pxTopOfStack |= portTHUMB_MODE_BIT; *pxTopOfStack |= portTHUMB_MODE_BIT;
} }
pxTopOfStack--; pxTopOfStack--;
/* Some optimisation levels use the stack differently to others. This /* Some optimisation levels use the stack differently to others. This
* means the interrupt flags cannot always be stored on the stack and will means the interrupt flags cannot always be stored on the stack and will
* instead be stored in a variable, which is then saved as part of the instead be stored in a variable, which is then saved as part of the
* tasks context. */ tasks context. */
*pxTopOfStack = portNO_CRITICAL_SECTION_NESTING; *pxTopOfStack = portNO_CRITICAL_SECTION_NESTING;
return pxTopOfStack; return pxTopOfStack;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
BaseType_t xPortStartScheduler( void ) BaseType_t xPortStartScheduler( void )
{ {
/* Start the timer that generates the tick ISR. Interrupts are disabled /* Start the timer that generates the tick ISR. Interrupts are disabled
* here already. */ here already. */
prvSetupTimerInterrupt(); prvSetupTimerInterrupt();
/* Start the first task. */ /* Start the first task. */
vPortISRStartFirstTask(); vPortISRStartFirstTask();
/* Should not get here! */ /* Should not get here! */
return 0; return 0;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortEndScheduler( void ) void vPortEndScheduler( void )
{ {
/* It is unlikely that the ARM port will require this function as there /* It is unlikely that the ARM port will require this function as there
* is nothing to return to. */ is nothing to return to. */
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -181,41 +179,43 @@ void vPortEndScheduler( void )
*/ */
static void prvSetupTimerInterrupt( void ) static void prvSetupTimerInterrupt( void )
{ {
uint32_t ulCompareMatch; uint32_t ulCompareMatch;
extern void ( vTickISR )( void );
extern void( vTickISR )( void ); /* A 1ms tick does not require the use of the timer prescale. This is
defaulted to zero but can be used if necessary. */
T0_PR = portPRESCALE_VALUE;
/* A 1ms tick does not require the use of the timer prescale. This is /* Calculate the match value required for our wanted tick rate. */
* defaulted to zero but can be used if necessary. */ ulCompareMatch = configCPU_CLOCK_HZ / configTICK_RATE_HZ;
T0_PR = portPRESCALE_VALUE;
/* Calculate the match value required for our wanted tick rate. */ /* Protect against divide by zero. Using an if() statement still results
ulCompareMatch = configCPU_CLOCK_HZ / configTICK_RATE_HZ; in a warning - hence the #if. */
#if portPRESCALE_VALUE != 0
{
ulCompareMatch /= ( portPRESCALE_VALUE + 1 );
}
#endif
T0_MR0 = ulCompareMatch;
/* Protect against divide by zero. Using an if() statement still results /* Generate tick with timer 0 compare match. */
* in a warning - hence the #if. */ T0_MCR = portRESET_COUNT_ON_MATCH | portINTERRUPT_ON_MATCH;
#if portPRESCALE_VALUE != 0
{
ulCompareMatch /= ( portPRESCALE_VALUE + 1 );
}
#endif
T0_MR0 = ulCompareMatch;
/* Generate tick with timer 0 compare match. */ /* Setup the VIC for the timer. */
T0_MCR = portRESET_COUNT_ON_MATCH | portINTERRUPT_ON_MATCH; VICIntSelect &= ~( portTIMER_VIC_CHANNEL_BIT );
VICIntEnable |= portTIMER_VIC_CHANNEL_BIT;
/* Setup the VIC for the timer. */ /* The ISR installed depends on whether the preemptive or cooperative
VICIntSelect &= ~( portTIMER_VIC_CHANNEL_BIT ); scheduler is being used. */
VICIntEnable |= portTIMER_VIC_CHANNEL_BIT;
/* The ISR installed depends on whether the preemptive or cooperative VICVectAddr0 = ( int32_t ) vTickISR;
* scheduler is being used. */ VICVectCntl0 = portTIMER_VIC_CHANNEL | portTIMER_VIC_ENABLE;
VICVectAddr0 = ( int32_t ) vTickISR; /* Start the timer - interrupts are disabled when this function is called
VICVectCntl0 = portTIMER_VIC_CHANNEL | portTIMER_VIC_ENABLE; so it is okay to do this here. */
T0_TCR = portENABLE_TIMER;
/* Start the timer - interrupts are disabled when this function is called
* so it is okay to do this here. */
T0_TCR = portENABLE_TIMER;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/

220
portable/GCC/ARM7_LPC2000/portISR.c
View file

@ -19,53 +19,53 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Components that can be compiled to either ARM or THUMB mode are * Components that can be compiled to either ARM or THUMB mode are
* contained in port.c The ISR routines, which can only be compiled * contained in port.c The ISR routines, which can only be compiled
* to ARM mode, are contained in this file. * to ARM mode, are contained in this file.
*----------------------------------------------------------*/ *----------------------------------------------------------*/
/* /*
* Changes from V2.5.2 Changes from V2.5.2
*
+ The critical section management functions have been changed. These no + The critical section management functions have been changed. These no
+ longer modify the stack and are safe to use at all optimisation levels. longer modify the stack and are safe to use at all optimisation levels.
+ The functions are now also the same for both ARM and THUMB modes. The functions are now also the same for both ARM and THUMB modes.
+
+ Changes from V2.6.0 Changes from V2.6.0
+
+ Removed the 'static' from the definition of vNonPreemptiveTick() to + Removed the 'static' from the definition of vNonPreemptiveTick() to
+ allow the demo to link when using the cooperative scheduler. allow the demo to link when using the cooperative scheduler.
+
+ Changes from V3.2.4 Changes from V3.2.4
+
+ The assembler statements are now included in a single asm block rather + The assembler statements are now included in a single asm block rather
+ than each line having its own asm block. than each line having its own asm block.
*/ */
/* Scheduler includes. */ /* Scheduler includes. */
#include "FreeRTOS.h" #include "FreeRTOS.h"
/* Constants required to handle interrupts. */ /* Constants required to handle interrupts. */
#define portTIMER_MATCH_ISR_BIT ( ( uint8_t ) 0x01 ) #define portTIMER_MATCH_ISR_BIT ( ( uint8_t ) 0x01 )
#define portCLEAR_VIC_INTERRUPT ( ( uint32_t ) 0 ) #define portCLEAR_VIC_INTERRUPT ( ( uint32_t ) 0 )
/* Constants required to handle critical sections. */ /* Constants required to handle critical sections. */
#define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 ) #define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 )
volatile uint32_t ulCriticalNesting = 9999UL; volatile uint32_t ulCriticalNesting = 9999UL;
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* ISR to handle manual context switches (from a call to taskYIELD()). */ /* ISR to handle manual context switches (from a call to taskYIELD()). */
void vPortYieldProcessor( void ) __attribute__( ( interrupt( "SWI" ), naked ) ); void vPortYieldProcessor( void ) __attribute__((interrupt("SWI"), naked));
/* /*
* The scheduler can only be started from ARM mode, hence the inclusion of this * The scheduler can only be started from ARM mode, hence the inclusion of this
@ -76,9 +76,9 @@ void vPortISRStartFirstTask( void );
void vPortISRStartFirstTask( void ) void vPortISRStartFirstTask( void )
{ {
/* Simply start the scheduler. This is included here as it can only be /* Simply start the scheduler. This is included here as it can only be
* called from ARM mode. */ called from ARM mode. */
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -92,48 +92,48 @@ void vPortISRStartFirstTask( void )
*/ */
void vPortYieldProcessor( void ) void vPortYieldProcessor( void )
{ {
/* Within an IRQ ISR the link register has an offset from the true return /* Within an IRQ ISR the link register has an offset from the true return
* address, but an SWI ISR does not. Add the offset manually so the same address, but an SWI ISR does not. Add the offset manually so the same
* ISR return code can be used in both cases. */ ISR return code can be used in both cases. */
__asm volatile ( "ADD LR, LR, #4"); __asm volatile ( "ADD LR, LR, #4" );
/* Perform the context switch. First save the context of the current task. */ /* Perform the context switch. First save the context of the current task. */
portSAVE_CONTEXT(); portSAVE_CONTEXT();
/* Find the highest priority task that is ready to run. */ /* Find the highest priority task that is ready to run. */
__asm volatile ( "bl vTaskSwitchContext" ); __asm volatile ( "bl vTaskSwitchContext" );
/* Restore the context of the new task. */ /* Restore the context of the new task. */
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* /*
* The ISR used for the scheduler tick. * The ISR used for the scheduler tick.
*/ */
void vTickISR( void ) __attribute__( ( naked ) ); void vTickISR( void ) __attribute__((naked));
void vTickISR( void ) void vTickISR( void )
{ {
/* Save the context of the interrupted task. */ /* Save the context of the interrupted task. */
portSAVE_CONTEXT(); portSAVE_CONTEXT();
/* Increment the RTOS tick count, then look for the highest priority /* Increment the RTOS tick count, then look for the highest priority
* task that is ready to run. */ task that is ready to run. */
__asm volatile __asm volatile
( (
" bl xTaskIncrementTick \t\n"\ " bl xTaskIncrementTick \t\n" \
" cmp r0, #0 \t\n"\ " cmp r0, #0 \t\n" \
" beq SkipContextSwitch \t\n"\ " beq SkipContextSwitch \t\n" \
" bl vTaskSwitchContext \t\n"\ " bl vTaskSwitchContext \t\n" \
"SkipContextSwitch: \t\n" "SkipContextSwitch: \t\n"
); );
/* Ready for the next interrupt. */ /* Ready for the next interrupt. */
T0_IR = portTIMER_MATCH_ISR_BIT; T0_IR = portTIMER_MATCH_ISR_BIT;
VICVectAddr = portCLEAR_VIC_INTERRUPT; VICVectAddr = portCLEAR_VIC_INTERRUPT;
/* Restore the context of the new task. */ /* Restore the context of the new task. */
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -145,71 +145,71 @@ void vTickISR( void )
*/ */
#ifdef THUMB_INTERWORK #ifdef THUMB_INTERWORK
void vPortDisableInterruptsFromThumb( void ) __attribute__( ( naked ) ); void vPortDisableInterruptsFromThumb( void ) __attribute__ ((naked));
void vPortEnableInterruptsFromThumb( void ) __attribute__( ( naked ) ); void vPortEnableInterruptsFromThumb( void ) __attribute__ ((naked));
void vPortDisableInterruptsFromThumb( void ) void vPortDisableInterruptsFromThumb( void )
{ {
__asm volatile ( __asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"ORR R0, R0, #0xC0 \n\t"/* Disable IRQ, FIQ. */ "ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0} \n\t"/* Pop R0. */ "LDMIA SP!, {R0} \n\t" /* Pop R0. */
"BX R14"); /* Return back to thumb. */ "BX R14" ); /* Return back to thumb. */
} }
void vPortEnableInterruptsFromThumb( void ) void vPortEnableInterruptsFromThumb( void )
{ {
__asm volatile ( __asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"BIC R0, R0, #0xC0 \n\t"/* Enable IRQ, FIQ. */ "BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0} \n\t"/* Pop R0. */ "LDMIA SP!, {R0} \n\t" /* Pop R0. */
"BX R14"); /* Return back to thumb. */ "BX R14" ); /* Return back to thumb. */
} }
#endif /* THUMB_INTERWORK */ #endif /* THUMB_INTERWORK */
/* The code generated by the GCC compiler uses the stack in different ways at /* The code generated by the GCC compiler uses the stack in different ways at
* different optimisation levels. The interrupt flags can therefore not always different optimisation levels. The interrupt flags can therefore not always
* be saved to the stack. Instead the critical section nesting level is stored be saved to the stack. Instead the critical section nesting level is stored
* in a variable, which is then saved as part of the stack context. */ in a variable, which is then saved as part of the stack context. */
void vPortEnterCritical( void ) void vPortEnterCritical( void )
{ {
/* Disable interrupts as per portDISABLE_INTERRUPTS(); */ /* Disable interrupts as per portDISABLE_INTERRUPTS(); */
__asm volatile ( __asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"ORR R0, R0, #0xC0 \n\t"/* Disable IRQ, FIQ. */ "ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0}"); /* Pop R0. */ "LDMIA SP!, {R0}" ); /* Pop R0. */
/* Now interrupts are disabled ulCriticalNesting can be accessed /* Now interrupts are disabled ulCriticalNesting can be accessed
* directly. Increment ulCriticalNesting to keep a count of how many times directly. Increment ulCriticalNesting to keep a count of how many times
* portENTER_CRITICAL() has been called. */ portENTER_CRITICAL() has been called. */
ulCriticalNesting++; ulCriticalNesting++;
} }
void vPortExitCritical( void ) void vPortExitCritical( void )
{ {
if( ulCriticalNesting > portNO_CRITICAL_NESTING ) if( ulCriticalNesting > portNO_CRITICAL_NESTING )
{ {
/* Decrement the nesting count as we are leaving a critical section. */ /* Decrement the nesting count as we are leaving a critical section. */
ulCriticalNesting--; ulCriticalNesting--;
/* If the nesting level has reached zero then interrupts should be /* If the nesting level has reached zero then interrupts should be
* re-enabled. */ re-enabled. */
if( ulCriticalNesting == portNO_CRITICAL_NESTING ) if( ulCriticalNesting == portNO_CRITICAL_NESTING )
{ {
/* Enable interrupts as per portEXIT_CRITICAL(). */ /* Enable interrupts as per portEXIT_CRITICAL(). */
__asm volatile ( __asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"BIC R0, R0, #0xC0 \n\t"/* Enable IRQ, FIQ. */ "BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0}"); /* Pop R0. */ "LDMIA SP!, {R0}" ); /* Pop R0. */
} }
} }
} }

281
portable/GCC/ARM7_LPC2000/portmacro.h
View file

@ -19,18 +19,18 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
#ifndef PORTMACRO_H #ifndef PORTMACRO_H
#define PORTMACRO_H #define PORTMACRO_H
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Port specific definitions. * Port specific definitions.
@ -43,32 +43,32 @@
*/ */
/* Type definitions. */ /* Type definitions. */
#define portCHAR char #define portCHAR char
#define portFLOAT float #define portFLOAT float
#define portDOUBLE double #define portDOUBLE double
#define portLONG long #define portLONG long
#define portSHORT short #define portSHORT short
#define portSTACK_TYPE uint32_t #define portSTACK_TYPE uint32_t
#define portBASE_TYPE portLONG #define portBASE_TYPE portLONG
typedef portSTACK_TYPE StackType_t; typedef portSTACK_TYPE StackType_t;
typedef long BaseType_t; typedef long BaseType_t;
typedef unsigned long UBaseType_t; typedef unsigned long UBaseType_t;
#if ( configUSE_16_BIT_TICKS == 1 ) #if( configUSE_16_BIT_TICKS == 1 )
typedef uint16_t TickType_t; typedef uint16_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffff #define portMAX_DELAY ( TickType_t ) 0xffff
#else #else
typedef uint32_t TickType_t; typedef uint32_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
#endif #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Architecture specifics. */ /* Architecture specifics. */
#define portSTACK_GROWTH ( -1 ) #define portSTACK_GROWTH ( -1 )
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
#define portBYTE_ALIGNMENT 8 #define portBYTE_ALIGNMENT 8
#define portNOP() __asm volatile ( "NOP" ); #define portNOP() __asm volatile ( "NOP" );
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -81,92 +81,92 @@
* THUMB mode code will result in a compile time error. * THUMB mode code will result in a compile time error.
*/ */
#define portRESTORE_CONTEXT() \ #define portRESTORE_CONTEXT() \
{ \ { \
extern volatile void * volatile pxCurrentTCB; \ extern volatile void * volatile pxCurrentTCB; \
extern volatile uint32_t ulCriticalNesting; \ extern volatile uint32_t ulCriticalNesting; \
\ \
/* Set the LR to the task stack. */ \ /* Set the LR to the task stack. */ \
__asm volatile ( \ __asm volatile ( \
"LDR R0, =pxCurrentTCB \n\t"\ "LDR R0, =pxCurrentTCB \n\t" \
"LDR R0, [R0] \n\t"\ "LDR R0, [R0] \n\t" \
"LDR LR, [R0] \n\t"\ "LDR LR, [R0] \n\t" \
\ \
/* The critical nesting depth is the first item on the stack. */ \ /* The critical nesting depth is the first item on the stack. */ \
/* Load it into the ulCriticalNesting variable. */ \ /* Load it into the ulCriticalNesting variable. */ \
"LDR R0, =ulCriticalNesting \n\t"\ "LDR R0, =ulCriticalNesting \n\t" \
"LDMFD LR!, {R1} \n\t"\ "LDMFD LR!, {R1} \n\t" \
"STR R1, [R0] \n\t"\ "STR R1, [R0] \n\t" \
\ \
/* Get the SPSR from the stack. */ \ /* Get the SPSR from the stack. */ \
"LDMFD LR!, {R0} \n\t"\ "LDMFD LR!, {R0} \n\t" \
"MSR SPSR, R0 \n\t"\ "MSR SPSR, R0 \n\t" \
\ \
/* Restore all system mode registers for the task. */ \ /* Restore all system mode registers for the task. */ \
"LDMFD LR, {R0-R14}^ \n\t"\ "LDMFD LR, {R0-R14}^ \n\t" \
"NOP \n\t"\ "NOP \n\t" \
\ \
/* Restore the return address. */ \ /* Restore the return address. */ \
"LDR LR, [LR, #+60] \n\t"\ "LDR LR, [LR, #+60] \n\t" \
\ \
/* And return - correcting the offset in the LR to obtain the */ \ /* And return - correcting the offset in the LR to obtain the */ \
/* correct address. */ \ /* correct address. */ \
"SUBS PC, LR, #4 \n\t"\ "SUBS PC, LR, #4 \n\t" \
); \ ); \
( void ) ulCriticalNesting; \ ( void ) ulCriticalNesting; \
( void ) pxCurrentTCB; \ ( void ) pxCurrentTCB; \
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#define portSAVE_CONTEXT() \ #define portSAVE_CONTEXT() \
{ \ { \
extern volatile void * volatile pxCurrentTCB; \ extern volatile void * volatile pxCurrentTCB; \
extern volatile uint32_t ulCriticalNesting; \ extern volatile uint32_t ulCriticalNesting; \
\ \
/* Push R0 as we are going to use the register. */ \ /* Push R0 as we are going to use the register. */ \
__asm volatile ( \ __asm volatile ( \
"STMDB SP!, {R0} \n\t"\ "STMDB SP!, {R0} \n\t" \
\ \
/* Set R0 to point to the task stack pointer. */ \ /* Set R0 to point to the task stack pointer. */ \
"STMDB SP,{SP}^ \n\t"\ "STMDB SP,{SP}^ \n\t" \
"NOP \n\t"\ "NOP \n\t" \
"SUB SP, SP, #4 \n\t"\ "SUB SP, SP, #4 \n\t" \
"LDMIA SP!,{R0} \n\t"\ "LDMIA SP!,{R0} \n\t" \
\ \
/* Push the return address onto the stack. */ \ /* Push the return address onto the stack. */ \
"STMDB R0!, {LR} \n\t"\ "STMDB R0!, {LR} \n\t" \
\ \
/* Now we have saved LR we can use it instead of R0. */ \ /* Now we have saved LR we can use it instead of R0. */ \
"MOV LR, R0 \n\t"\ "MOV LR, R0 \n\t" \
\ \
/* Pop R0 so we can save it onto the system mode stack. */ \ /* Pop R0 so we can save it onto the system mode stack. */ \
"LDMIA SP!, {R0} \n\t"\ "LDMIA SP!, {R0} \n\t" \
\ \
/* Push all the system mode registers onto the task stack. */ \ /* Push all the system mode registers onto the task stack. */ \
"STMDB LR,{R0-LR}^ \n\t"\ "STMDB LR,{R0-LR}^ \n\t" \
"NOP \n\t"\ "NOP \n\t" \
"SUB LR, LR, #60 \n\t"\ "SUB LR, LR, #60 \n\t" \
\ \
/* Push the SPSR onto the task stack. */ \ /* Push the SPSR onto the task stack. */ \
"MRS R0, SPSR \n\t"\ "MRS R0, SPSR \n\t" \
"STMDB LR!, {R0} \n\t"\ "STMDB LR!, {R0} \n\t" \
\ \
"LDR R0, =ulCriticalNesting \n\t"\ "LDR R0, =ulCriticalNesting \n\t" \
"LDR R0, [R0] \n\t"\ "LDR R0, [R0] \n\t" \
"STMDB LR!, {R0} \n\t"\ "STMDB LR!, {R0} \n\t" \
\ \
/* Store the new top of stack for the task. */ \ /* Store the new top of stack for the task. */ \
"LDR R0, =pxCurrentTCB \n\t"\ "LDR R0, =pxCurrentTCB \n\t" \
"LDR R0, [R0] \n\t"\ "LDR R0, [R0] \n\t" \
"STR LR, [R0] \n\t"\ "STR LR, [R0] \n\t" \
); \ ); \
( void ) ulCriticalNesting; \ ( void ) ulCriticalNesting; \
( void ) pxCurrentTCB; \ ( void ) pxCurrentTCB; \
} }
extern void vTaskSwitchContext( void ); extern void vTaskSwitchContext( void );
#define portYIELD_FROM_ISR() vTaskSwitchContext() #define portYIELD_FROM_ISR() vTaskSwitchContext()
#define portYIELD() __asm volatile ( "SWI 0" ) #define portYIELD() __asm volatile ( "SWI 0" )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -179,47 +179,48 @@
* defined then the utilities are defined as macros here - as per other ports. * defined then the utilities are defined as macros here - as per other ports.
*/ */
#ifdef THUMB_INTERWORK #ifdef THUMB_INTERWORK
extern void vPortDisableInterruptsFromThumb( void ) __attribute__( ( naked ) ); extern void vPortDisableInterruptsFromThumb( void ) __attribute__ ((naked));
extern void vPortEnableInterruptsFromThumb( void ) __attribute__( ( naked ) ); extern void vPortEnableInterruptsFromThumb( void ) __attribute__ ((naked));
#define portDISABLE_INTERRUPTS() vPortDisableInterruptsFromThumb() #define portDISABLE_INTERRUPTS() vPortDisableInterruptsFromThumb()
#define portENABLE_INTERRUPTS() vPortEnableInterruptsFromThumb() #define portENABLE_INTERRUPTS() vPortEnableInterruptsFromThumb()
#else #else
#define portDISABLE_INTERRUPTS() \ #define portDISABLE_INTERRUPTS() \
__asm volatile ( \ __asm volatile ( \
"STMDB SP!, {R0} \n\t"/* Push R0. */\ "STMDB SP!, {R0} \n\t" /* Push R0. */ \
"MRS R0, CPSR \n\t"/* Get CPSR. */\ "MRS R0, CPSR \n\t" /* Get CPSR. */ \
"ORR R0, R0, #0xC0 \n\t"/* Disable IRQ, FIQ. */\ "ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */ \
"MSR CPSR, R0 \n\t"/* Write back modified value. */\ "MSR CPSR, R0 \n\t" /* Write back modified value. */ \
"LDMIA SP!, {R0} ") /* Pop R0. */ "LDMIA SP!, {R0} " ) /* Pop R0. */
#define portENABLE_INTERRUPTS() \ #define portENABLE_INTERRUPTS() \
__asm volatile ( \ __asm volatile ( \
"STMDB SP!, {R0} \n\t"/* Push R0. */\ "STMDB SP!, {R0} \n\t" /* Push R0. */ \
"MRS R0, CPSR \n\t"/* Get CPSR. */\ "MRS R0, CPSR \n\t" /* Get CPSR. */ \
"BIC R0, R0, #0xC0 \n\t"/* Enable IRQ, FIQ. */\ "BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */ \
"MSR CPSR, R0 \n\t"/* Write back modified value. */\ "MSR CPSR, R0 \n\t" /* Write back modified value. */ \
"LDMIA SP!, {R0} ") /* Pop R0. */ "LDMIA SP!, {R0} " ) /* Pop R0. */
#endif /* THUMB_INTERWORK */ #endif /* THUMB_INTERWORK */
extern void vPortEnterCritical( void ); extern void vPortEnterCritical( void );
extern void vPortExitCritical( void ); extern void vPortExitCritical( void );
#define portENTER_CRITICAL() vPortEnterCritical(); #define portENTER_CRITICAL() vPortEnterCritical();
#define portEXIT_CRITICAL() vPortExitCritical(); #define portEXIT_CRITICAL() vPortExitCritical();
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Task function macros as described on the FreeRTOS.org WEB site. */ /* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif
#endif /* PORTMACRO_H */ #endif /* PORTMACRO_H */

257
portable/GCC/ARM7_LPC23xx/port.c
View file

@ -19,20 +19,20 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Implementation of functions defined in portable.h for the ARM7 port. * Implementation of functions defined in portable.h for the ARM7 port.
* *
* Components that can be compiled to either ARM or THUMB mode are * Components that can be compiled to either ARM or THUMB mode are
* contained in this file. The ISR routines, which can only be compiled * contained in this file. The ISR routines, which can only be compiled
* to ARM mode are contained in portISR.c. * to ARM mode are contained in portISR.c.
*----------------------------------------------------------*/ *----------------------------------------------------------*/
/* Standard includes. */ /* Standard includes. */
@ -43,21 +43,21 @@
#include "task.h" #include "task.h"
/* Constants required to setup the task context. */ /* Constants required to setup the task context. */
#define portINITIAL_SPSR ( ( StackType_t ) 0x1f ) /* System mode, ARM mode, interrupts enabled. */ #define portINITIAL_SPSR ( ( StackType_t ) 0x1f ) /* System mode, ARM mode, interrupts enabled. */
#define portTHUMB_MODE_BIT ( ( StackType_t ) 0x20 ) #define portTHUMB_MODE_BIT ( ( StackType_t ) 0x20 )
#define portINSTRUCTION_SIZE ( ( StackType_t ) 4 ) #define portINSTRUCTION_SIZE ( ( StackType_t ) 4 )
#define portNO_CRITICAL_SECTION_NESTING ( ( StackType_t ) 0 ) #define portNO_CRITICAL_SECTION_NESTING ( ( StackType_t ) 0 )
/* Constants required to setup the tick ISR. */ /* Constants required to setup the tick ISR. */
#define portENABLE_TIMER ( ( uint8_t ) 0x01 ) #define portENABLE_TIMER ( ( uint8_t ) 0x01 )
#define portPRESCALE_VALUE 0x00 #define portPRESCALE_VALUE 0x00
#define portINTERRUPT_ON_MATCH ( ( uint32_t ) 0x01 ) #define portINTERRUPT_ON_MATCH ( ( uint32_t ) 0x01 )
#define portRESET_COUNT_ON_MATCH ( ( uint32_t ) 0x02 ) #define portRESET_COUNT_ON_MATCH ( ( uint32_t ) 0x02 )
/* Constants required to setup the VIC for the tick ISR. */ /* Constants required to setup the VIC for the tick ISR. */
#define portTIMER_VIC_CHANNEL ( ( uint32_t ) 0x0004 ) #define portTIMER_VIC_CHANNEL ( ( uint32_t ) 0x0004 )
#define portTIMER_VIC_CHANNEL_BIT ( ( uint32_t ) 0x0010 ) #define portTIMER_VIC_CHANNEL_BIT ( ( uint32_t ) 0x0010 )
#define portTIMER_VIC_ENABLE ( ( uint32_t ) 0x0020 ) #define portTIMER_VIC_ENABLE ( ( uint32_t ) 0x0020 )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -78,101 +78,99 @@ extern void vPortISRStartFirstTask( void );
* *
* See header file for description. * See header file for description.
*/ */
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
TaskFunction_t pxCode,
void * pvParameters )
{ {
StackType_t * pxOriginalTOS; StackType_t *pxOriginalTOS;
pxOriginalTOS = pxTopOfStack; pxOriginalTOS = pxTopOfStack;
/* To ensure asserts in tasks.c don't fail, although in this case the assert /* To ensure asserts in tasks.c don't fail, although in this case the assert
* is not really required. */ is not really required. */
pxTopOfStack--; pxTopOfStack--;
/* Setup the initial stack of the task. The stack is set exactly as /* Setup the initial stack of the task. The stack is set exactly as
* expected by the portRESTORE_CONTEXT() macro. */ expected by the portRESTORE_CONTEXT() macro. */
/* First on the stack is the return address - which in this case is the /* First on the stack is the return address - which in this case is the
* start of the task. The offset is added to make the return address appear start of the task. The offset is added to make the return address appear
* as it would within an IRQ ISR. */ as it would within an IRQ ISR. */
*pxTopOfStack = ( StackType_t ) pxCode + portINSTRUCTION_SIZE; *pxTopOfStack = ( StackType_t ) pxCode + portINSTRUCTION_SIZE;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x00000000; /* R14 */ *pxTopOfStack = ( StackType_t ) 0x00000000; /* R14 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) pxOriginalTOS; /* Stack used when task starts goes in R13. */ *pxTopOfStack = ( StackType_t ) pxOriginalTOS; /* Stack used when task starts goes in R13. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x12121212; /* R12 */ *pxTopOfStack = ( StackType_t ) 0x12121212; /* R12 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x11111111; /* R11 */ *pxTopOfStack = ( StackType_t ) 0x11111111; /* R11 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x10101010; /* R10 */ *pxTopOfStack = ( StackType_t ) 0x10101010; /* R10 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x09090909; /* R9 */ *pxTopOfStack = ( StackType_t ) 0x09090909; /* R9 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x08080808; /* R8 */ *pxTopOfStack = ( StackType_t ) 0x08080808; /* R8 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x07070707; /* R7 */ *pxTopOfStack = ( StackType_t ) 0x07070707; /* R7 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x06060606; /* R6 */ *pxTopOfStack = ( StackType_t ) 0x06060606; /* R6 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x05050505; /* R5 */ *pxTopOfStack = ( StackType_t ) 0x05050505; /* R5 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x04040404; /* R4 */ *pxTopOfStack = ( StackType_t ) 0x04040404; /* R4 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x03030303; /* R3 */ *pxTopOfStack = ( StackType_t ) 0x03030303; /* R3 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x02020202; /* R2 */ *pxTopOfStack = ( StackType_t ) 0x02020202; /* R2 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x01010101; /* R1 */ *pxTopOfStack = ( StackType_t ) 0x01010101; /* R1 */
pxTopOfStack--; pxTopOfStack--;
/* When the task starts is will expect to find the function parameter in /* When the task starts is will expect to find the function parameter in
* R0. */ R0. */
*pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */ *pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */
pxTopOfStack--; pxTopOfStack--;
/* The last thing onto the stack is the status register, which is set for /* The last thing onto the stack is the status register, which is set for
* system mode, with interrupts enabled. */ system mode, with interrupts enabled. */
*pxTopOfStack = ( StackType_t ) portINITIAL_SPSR; *pxTopOfStack = ( StackType_t ) portINITIAL_SPSR;
if( ( ( uint32_t ) pxCode & 0x01UL ) != 0x00 ) if( ( ( uint32_t ) pxCode & 0x01UL ) != 0x00 )
{ {
/* We want the task to start in thumb mode. */ /* We want the task to start in thumb mode. */
*pxTopOfStack |= portTHUMB_MODE_BIT; *pxTopOfStack |= portTHUMB_MODE_BIT;
} }
pxTopOfStack--; pxTopOfStack--;
/* Some optimisation levels use the stack differently to others. This /* Some optimisation levels use the stack differently to others. This
* means the interrupt flags cannot always be stored on the stack and will means the interrupt flags cannot always be stored on the stack and will
* instead be stored in a variable, which is then saved as part of the instead be stored in a variable, which is then saved as part of the
* tasks context. */ tasks context. */
*pxTopOfStack = portNO_CRITICAL_SECTION_NESTING; *pxTopOfStack = portNO_CRITICAL_SECTION_NESTING;
return pxTopOfStack; return pxTopOfStack;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
BaseType_t xPortStartScheduler( void ) BaseType_t xPortStartScheduler( void )
{ {
/* Start the timer that generates the tick ISR. Interrupts are disabled /* Start the timer that generates the tick ISR. Interrupts are disabled
* here already. */ here already. */
prvSetupTimerInterrupt(); prvSetupTimerInterrupt();
/* Start the first task. */ /* Start the first task. */
vPortISRStartFirstTask(); vPortISRStartFirstTask();
/* Should not get here! */ /* Should not get here! */
return 0; return 0;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortEndScheduler( void ) void vPortEndScheduler( void )
{ {
/* It is unlikely that the ARM port will require this function as there /* It is unlikely that the ARM port will require this function as there
* is nothing to return to. */ is nothing to return to. */
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -181,52 +179,55 @@ void vPortEndScheduler( void )
*/ */
static void prvSetupTimerInterrupt( void ) static void prvSetupTimerInterrupt( void )
{ {
uint32_t ulCompareMatch; uint32_t ulCompareMatch;
PCLKSEL0 = ( PCLKSEL0 & ( ~( 0x3 << 2 ) ) ) | ( 0x01 << 2 ); PCLKSEL0 = (PCLKSEL0 & (~(0x3<<2))) | (0x01 << 2);
T0TCR = 2; /* Stop and reset the timer */ T0TCR = 2; /* Stop and reset the timer */
T0CTCR = 0; /* Timer mode */ T0CTCR = 0; /* Timer mode */
/* A 1ms tick does not require the use of the timer prescale. This is /* A 1ms tick does not require the use of the timer prescale. This is
* defaulted to zero but can be used if necessary. */ defaulted to zero but can be used if necessary. */
T0PR = portPRESCALE_VALUE; T0PR = portPRESCALE_VALUE;
/* Calculate the match value required for our wanted tick rate. */ /* Calculate the match value required for our wanted tick rate. */
ulCompareMatch = configCPU_CLOCK_HZ / configTICK_RATE_HZ; ulCompareMatch = configCPU_CLOCK_HZ / configTICK_RATE_HZ;
/* Protect against divide by zero. Using an if() statement still results /* Protect against divide by zero. Using an if() statement still results
* in a warning - hence the #if. */ in a warning - hence the #if. */
#if portPRESCALE_VALUE != 0 #if portPRESCALE_VALUE != 0
{ {
ulCompareMatch /= ( portPRESCALE_VALUE + 1 ); ulCompareMatch /= ( portPRESCALE_VALUE + 1 );
} }
#endif #endif
T0MR1 = ulCompareMatch; T0MR1 = ulCompareMatch;
/* Generate tick with timer 0 compare match. */ /* Generate tick with timer 0 compare match. */
T0MCR = ( 3 << 3 ); /* Reset timer on match and generate interrupt */ T0MCR = (3 << 3); /* Reset timer on match and generate interrupt */
/* Setup the VIC for the timer. */ /* Setup the VIC for the timer. */
VICIntEnable = 0x00000010; VICIntEnable = 0x00000010;
/* The ISR installed depends on whether the preemptive or cooperative /* The ISR installed depends on whether the preemptive or cooperative
* scheduler is being used. */ scheduler is being used. */
#if configUSE_PREEMPTION == 1 #if configUSE_PREEMPTION == 1
{ {
extern void( vPreemptiveTick )( void ); extern void ( vPreemptiveTick )( void );
VICVectAddr4 = ( int32_t ) vPreemptiveTick; VICVectAddr4 = ( int32_t ) vPreemptiveTick;
} }
#else #else
{ {
extern void( vNonPreemptiveTick )( void ); extern void ( vNonPreemptiveTick )( void );
VICVectAddr4 = ( int32_t ) vNonPreemptiveTick; VICVectAddr4 = ( int32_t ) vNonPreemptiveTick;
} }
#endif #endif
VICVectCntl4 = 1; VICVectCntl4 = 1;
/* Start the timer - interrupts are disabled when this function is called /* Start the timer - interrupts are disabled when this function is called
* so it is okay to do this here. */ so it is okay to do this here. */
T0TCR = portENABLE_TIMER; T0TCR = portENABLE_TIMER;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/

220
portable/GCC/ARM7_LPC23xx/portISR.c
View file

@ -19,35 +19,35 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Components that can be compiled to either ARM or THUMB mode are * Components that can be compiled to either ARM or THUMB mode are
* contained in port.c The ISR routines, which can only be compiled * contained in port.c The ISR routines, which can only be compiled
* to ARM mode, are contained in this file. * to ARM mode, are contained in this file.
*----------------------------------------------------------*/ *----------------------------------------------------------*/
/* Scheduler includes. */ /* Scheduler includes. */
#include "FreeRTOS.h" #include "FreeRTOS.h"
#include "task.h" #include "task.h"
/* Constants required to handle interrupts. */ /* Constants required to handle interrupts. */
#define portTIMER_MATCH_ISR_BIT ( ( uint8_t ) 0x01 ) #define portTIMER_MATCH_ISR_BIT ( ( uint8_t ) 0x01 )
#define portCLEAR_VIC_INTERRUPT ( ( uint32_t ) 0 ) #define portCLEAR_VIC_INTERRUPT ( ( uint32_t ) 0 )
/* Constants required to handle critical sections. */ /* Constants required to handle critical sections. */
#define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 ) #define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 )
volatile uint32_t ulCriticalNesting = 9999UL; volatile uint32_t ulCriticalNesting = 9999UL;
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* ISR to handle manual context switches (from a call to taskYIELD()). */ /* ISR to handle manual context switches (from a call to taskYIELD()). */
void vPortYieldProcessor( void ) __attribute__( ( interrupt( "SWI" ), naked ) ); void vPortYieldProcessor( void ) __attribute__((interrupt("SWI"), naked));
/* /*
* The scheduler can only be started from ARM mode, hence the inclusion of this * The scheduler can only be started from ARM mode, hence the inclusion of this
@ -58,9 +58,9 @@ void vPortISRStartFirstTask( void );
void vPortISRStartFirstTask( void ) void vPortISRStartFirstTask( void )
{ {
/* Simply start the scheduler. This is included here as it can only be /* Simply start the scheduler. This is included here as it can only be
* called from ARM mode. */ called from ARM mode. */
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -74,19 +74,19 @@ void vPortISRStartFirstTask( void )
*/ */
void vPortYieldProcessor( void ) void vPortYieldProcessor( void )
{ {
/* Within an IRQ ISR the link register has an offset from the true return /* Within an IRQ ISR the link register has an offset from the true return
* address, but an SWI ISR does not. Add the offset manually so the same address, but an SWI ISR does not. Add the offset manually so the same
* ISR return code can be used in both cases. */ ISR return code can be used in both cases. */
__asm volatile ( "ADD LR, LR, #4"); __asm volatile ( "ADD LR, LR, #4" );
/* Perform the context switch. First save the context of the current task. */ /* Perform the context switch. First save the context of the current task. */
portSAVE_CONTEXT(); portSAVE_CONTEXT();
/* Find the highest priority task that is ready to run. */ /* Find the highest priority task that is ready to run. */
__asm volatile ( "bl vTaskSwitchContext"); __asm volatile( "bl vTaskSwitchContext" );
/* Restore the context of the new task. */ /* Restore the context of the new task. */
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -98,46 +98,46 @@ void vPortYieldProcessor( void )
#if configUSE_PREEMPTION == 0 #if configUSE_PREEMPTION == 0
/* The cooperative scheduler requires a normal IRQ service routine to /* The cooperative scheduler requires a normal IRQ service routine to
* simply increment the system tick. */ simply increment the system tick. */
void vNonPreemptiveTick( void ) __attribute__( ( interrupt( "IRQ" ) ) ); void vNonPreemptiveTick( void ) __attribute__ ((interrupt ("IRQ")));
void vNonPreemptiveTick( void ) void vNonPreemptiveTick( void )
{ {
xTaskIncrementTick(); xTaskIncrementTick();
T0IR = 2; T0IR = 2;
VICVectAddr = portCLEAR_VIC_INTERRUPT; VICVectAddr = portCLEAR_VIC_INTERRUPT;
} }
#else /* if configUSE_PREEMPTION == 0 */ #else
/* The preemptive scheduler is defined as "naked" as the full context is /* The preemptive scheduler is defined as "naked" as the full context is
* saved on entry as part of the context switch. */ saved on entry as part of the context switch. */
void vPreemptiveTick( void ) __attribute__( ( naked ) ); void vPreemptiveTick( void ) __attribute__((naked));
void vPreemptiveTick( void ) void vPreemptiveTick( void )
{ {
/* Save the context of the interrupted task. */ /* Save the context of the interrupted task. */
portSAVE_CONTEXT(); portSAVE_CONTEXT();
/* Increment the RTOS tick count, then look for the highest priority /* Increment the RTOS tick count, then look for the highest priority
* task that is ready to run. */ task that is ready to run. */
__asm volatile __asm volatile
( (
" bl xTaskIncrementTick \t\n"\ " bl xTaskIncrementTick \t\n" \
" cmp r0, #0 \t\n"\ " cmp r0, #0 \t\n" \
" beq SkipContextSwitch \t\n"\ " beq SkipContextSwitch \t\n" \
" bl vTaskSwitchContext \t\n"\ " bl vTaskSwitchContext \t\n" \
"SkipContextSwitch: \t\n" "SkipContextSwitch: \t\n"
); );
/* Ready for the next interrupt. */ /* Ready for the next interrupt. */
T0IR = 2; T0IR = 2;
VICVectAddr = portCLEAR_VIC_INTERRUPT; VICVectAddr = portCLEAR_VIC_INTERRUPT;
/* Restore the context of the new task. */ /* Restore the context of the new task. */
portRESTORE_CONTEXT(); portRESTORE_CONTEXT();
} }
#endif /* if configUSE_PREEMPTION == 0 */ #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* /*
@ -148,71 +148,71 @@ void vPortYieldProcessor( void )
*/ */
#ifdef THUMB_INTERWORK #ifdef THUMB_INTERWORK
void vPortDisableInterruptsFromThumb( void ) __attribute__( ( naked ) ); void vPortDisableInterruptsFromThumb( void ) __attribute__ ((naked));
void vPortEnableInterruptsFromThumb( void ) __attribute__( ( naked ) ); void vPortEnableInterruptsFromThumb( void ) __attribute__ ((naked));
void vPortDisableInterruptsFromThumb( void ) void vPortDisableInterruptsFromThumb( void )
{ {
__asm volatile ( __asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"ORR R0, R0, #0xC0 \n\t"/* Disable IRQ, FIQ. */ "ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0} \n\t"/* Pop R0. */ "LDMIA SP!, {R0} \n\t" /* Pop R0. */
"BX R14"); /* Return back to thumb. */ "BX R14" ); /* Return back to thumb. */
} }
void vPortEnableInterruptsFromThumb( void ) void vPortEnableInterruptsFromThumb( void )
{ {
__asm volatile ( __asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"BIC R0, R0, #0xC0 \n\t"/* Enable IRQ, FIQ. */ "BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0} \n\t"/* Pop R0. */ "LDMIA SP!, {R0} \n\t" /* Pop R0. */
"BX R14"); /* Return back to thumb. */ "BX R14" ); /* Return back to thumb. */
} }
#endif /* THUMB_INTERWORK */ #endif /* THUMB_INTERWORK */
/* The code generated by the GCC compiler uses the stack in different ways at /* The code generated by the GCC compiler uses the stack in different ways at
* different optimisation levels. The interrupt flags can therefore not always different optimisation levels. The interrupt flags can therefore not always
* be saved to the stack. Instead the critical section nesting level is stored be saved to the stack. Instead the critical section nesting level is stored
* in a variable, which is then saved as part of the stack context. */ in a variable, which is then saved as part of the stack context. */
void vPortEnterCritical( void ) void vPortEnterCritical( void )
{ {
/* Disable interrupts as per portDISABLE_INTERRUPTS(); */ /* Disable interrupts as per portDISABLE_INTERRUPTS(); */
__asm volatile ( __asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"ORR R0, R0, #0xC0 \n\t"/* Disable IRQ, FIQ. */ "ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0}"); /* Pop R0. */ "LDMIA SP!, {R0}" ); /* Pop R0. */
/* Now interrupts are disabled ulCriticalNesting can be accessed /* Now interrupts are disabled ulCriticalNesting can be accessed
* directly. Increment ulCriticalNesting to keep a count of how many times directly. Increment ulCriticalNesting to keep a count of how many times
* portENTER_CRITICAL() has been called. */ portENTER_CRITICAL() has been called. */
ulCriticalNesting++; ulCriticalNesting++;
} }
void vPortExitCritical( void ) void vPortExitCritical( void )
{ {
if( ulCriticalNesting > portNO_CRITICAL_NESTING ) if( ulCriticalNesting > portNO_CRITICAL_NESTING )
{ {
/* Decrement the nesting count as we are leaving a critical section. */ /* Decrement the nesting count as we are leaving a critical section. */
ulCriticalNesting--; ulCriticalNesting--;
/* If the nesting level has reached zero then interrupts should be /* If the nesting level has reached zero then interrupts should be
* re-enabled. */ re-enabled. */
if( ulCriticalNesting == portNO_CRITICAL_NESTING ) if( ulCriticalNesting == portNO_CRITICAL_NESTING )
{ {
/* Enable interrupts as per portEXIT_CRITICAL(). */ /* Enable interrupts as per portEXIT_CRITICAL(). */
__asm volatile ( __asm volatile (
"STMDB SP!, {R0} \n\t"/* Push R0. */ "STMDB SP!, {R0} \n\t" /* Push R0. */
"MRS R0, CPSR \n\t"/* Get CPSR. */ "MRS R0, CPSR \n\t" /* Get CPSR. */
"BIC R0, R0, #0xC0 \n\t"/* Enable IRQ, FIQ. */ "BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */
"MSR CPSR, R0 \n\t"/* Write back modified value. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */
"LDMIA SP!, {R0}"); /* Pop R0. */ "LDMIA SP!, {R0}" ); /* Pop R0. */
} }
} }
} }

321
portable/GCC/ARM7_LPC23xx/portmacro.h
View file

@ -19,41 +19,41 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
/* /*
* Changes from V3.2.3 Changes from V3.2.3
*
+ Modified portENTER_SWITCHING_ISR() to allow use with GCC V4.0.1. + Modified portENTER_SWITCHING_ISR() to allow use with GCC V4.0.1.
+
+ Changes from V3.2.4 Changes from V3.2.4
+
+ Removed the use of the %0 parameter within the assembler macros and + Removed the use of the %0 parameter within the assembler macros and
+ replaced them with hard coded registers. This will ensure the replaced them with hard coded registers. This will ensure the
+ assembler does not select the link register as the temp register as assembler does not select the link register as the temp register as
+ was occasionally happening previously. was occasionally happening previously.
+
+ The assembler statements are now included in a single asm block rather + The assembler statements are now included in a single asm block rather
+ than each line having its own asm block. than each line having its own asm block.
+
+ Changes from V4.5.0 Changes from V4.5.0
+
+ Removed the portENTER_SWITCHING_ISR() and portEXIT_SWITCHING_ISR() macros + Removed the portENTER_SWITCHING_ISR() and portEXIT_SWITCHING_ISR() macros
+ and replaced them with portYIELD_FROM_ISR() macro. Application code and replaced them with portYIELD_FROM_ISR() macro. Application code
+ should now make use of the portSAVE_CONTEXT() and portRESTORE_CONTEXT() should now make use of the portSAVE_CONTEXT() and portRESTORE_CONTEXT()
+ macros as per the V4.5.1 demo code. macros as per the V4.5.1 demo code.
*/ */
#ifndef PORTMACRO_H #ifndef PORTMACRO_H
#define PORTMACRO_H #define PORTMACRO_H
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Port specific definitions. * Port specific definitions.
@ -66,32 +66,32 @@
*/ */
/* Type definitions. */ /* Type definitions. */
#define portCHAR char #define portCHAR char
#define portFLOAT float #define portFLOAT float
#define portDOUBLE double #define portDOUBLE double
#define portLONG long #define portLONG long
#define portSHORT short #define portSHORT short
#define portSTACK_TYPE uint32_t #define portSTACK_TYPE uint32_t
#define portBASE_TYPE portLONG #define portBASE_TYPE portLONG
typedef portSTACK_TYPE StackType_t; typedef portSTACK_TYPE StackType_t;
typedef long BaseType_t; typedef long BaseType_t;
typedef unsigned long UBaseType_t; typedef unsigned long UBaseType_t;
#if ( configUSE_16_BIT_TICKS == 1 ) #if( configUSE_16_BIT_TICKS == 1 )
typedef uint16_t TickType_t; typedef uint16_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffff #define portMAX_DELAY ( TickType_t ) 0xffff
#else #else
typedef uint32_t TickType_t; typedef uint32_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
#endif #endif
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Architecture specifics. */ /* Architecture specifics. */
#define portSTACK_GROWTH ( -1 ) #define portSTACK_GROWTH ( -1 )
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
#define portBYTE_ALIGNMENT 8 #define portBYTE_ALIGNMENT 8
#define portNOP() __asm volatile ( "NOP" ); #define portNOP() __asm volatile ( "NOP" );
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -104,92 +104,92 @@
* THUMB mode code will result in a compile time error. * THUMB mode code will result in a compile time error.
*/ */
#define portRESTORE_CONTEXT() \ #define portRESTORE_CONTEXT() \
{ \ { \
extern volatile void * volatile pxCurrentTCB; \ extern volatile void * volatile pxCurrentTCB; \
extern volatile uint32_t ulCriticalNesting; \ extern volatile uint32_t ulCriticalNesting; \
\ \
/* Set the LR to the task stack. */ \ /* Set the LR to the task stack. */ \
__asm volatile ( \ __asm volatile ( \
"LDR R0, =pxCurrentTCB \n\t"\ "LDR R0, =pxCurrentTCB \n\t" \
"LDR R0, [R0] \n\t"\ "LDR R0, [R0] \n\t" \
"LDR LR, [R0] \n\t"\ "LDR LR, [R0] \n\t" \
\ \
/* The critical nesting depth is the first item on the stack. */ \ /* The critical nesting depth is the first item on the stack. */ \
/* Load it into the ulCriticalNesting variable. */ \ /* Load it into the ulCriticalNesting variable. */ \
"LDR R0, =ulCriticalNesting \n\t"\ "LDR R0, =ulCriticalNesting \n\t" \
"LDMFD LR!, {R1} \n\t"\ "LDMFD LR!, {R1} \n\t" \
"STR R1, [R0] \n\t"\ "STR R1, [R0] \n\t" \
\ \
/* Get the SPSR from the stack. */ \ /* Get the SPSR from the stack. */ \
"LDMFD LR!, {R0} \n\t"\ "LDMFD LR!, {R0} \n\t" \
"MSR SPSR, R0 \n\t"\ "MSR SPSR, R0 \n\t" \
\ \
/* Restore all system mode registers for the task. */ \ /* Restore all system mode registers for the task. */ \
"LDMFD LR, {R0-R14}^ \n\t"\ "LDMFD LR, {R0-R14}^ \n\t" \
"NOP \n\t"\ "NOP \n\t" \
\ \
/* Restore the return address. */ \ /* Restore the return address. */ \
"LDR LR, [LR, #+60] \n\t"\ "LDR LR, [LR, #+60] \n\t" \
\ \
/* And return - correcting the offset in the LR to obtain the */ \ /* And return - correcting the offset in the LR to obtain the */ \
/* correct address. */ \ /* correct address. */ \
"SUBS PC, LR, #4 \n\t"\ "SUBS PC, LR, #4 \n\t" \
); \ ); \
( void ) ulCriticalNesting; \ ( void ) ulCriticalNesting; \
( void ) pxCurrentTCB; \ ( void ) pxCurrentTCB; \
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#define portSAVE_CONTEXT() \ #define portSAVE_CONTEXT() \
{ \ { \
extern volatile void * volatile pxCurrentTCB; \ extern volatile void * volatile pxCurrentTCB; \
extern volatile uint32_t ulCriticalNesting; \ extern volatile uint32_t ulCriticalNesting; \
\ \
/* Push R0 as we are going to use the register. */ \ /* Push R0 as we are going to use the register. */ \
__asm volatile ( \ __asm volatile ( \
"STMDB SP!, {R0} \n\t"\ "STMDB SP!, {R0} \n\t" \
\ \
/* Set R0 to point to the task stack pointer. */ \ /* Set R0 to point to the task stack pointer. */ \
"STMDB SP,{SP}^ \n\t"\ "STMDB SP,{SP}^ \n\t" \
"NOP \n\t"\ "NOP \n\t" \
"SUB SP, SP, #4 \n\t"\ "SUB SP, SP, #4 \n\t" \
"LDMIA SP!,{R0} \n\t"\ "LDMIA SP!,{R0} \n\t" \
\ \
/* Push the return address onto the stack. */ \ /* Push the return address onto the stack. */ \
"STMDB R0!, {LR} \n\t"\ "STMDB R0!, {LR} \n\t" \
\ \
/* Now we have saved LR we can use it instead of R0. */ \ /* Now we have saved LR we can use it instead of R0. */ \
"MOV LR, R0 \n\t"\ "MOV LR, R0 \n\t" \
\ \
/* Pop R0 so we can save it onto the system mode stack. */ \ /* Pop R0 so we can save it onto the system mode stack. */ \
"LDMIA SP!, {R0} \n\t"\ "LDMIA SP!, {R0} \n\t" \
\ \
/* Push all the system mode registers onto the task stack. */ \ /* Push all the system mode registers onto the task stack. */ \
"STMDB LR,{R0-LR}^ \n\t"\ "STMDB LR,{R0-LR}^ \n\t" \
"NOP \n\t"\ "NOP \n\t" \
"SUB LR, LR, #60 \n\t"\ "SUB LR, LR, #60 \n\t" \
\ \
/* Push the SPSR onto the task stack. */ \ /* Push the SPSR onto the task stack. */ \
"MRS R0, SPSR \n\t"\ "MRS R0, SPSR \n\t" \
"STMDB LR!, {R0} \n\t"\ "STMDB LR!, {R0} \n\t" \
\ \
"LDR R0, =ulCriticalNesting \n\t"\ "LDR R0, =ulCriticalNesting \n\t" \
"LDR R0, [R0] \n\t"\ "LDR R0, [R0] \n\t" \
"STMDB LR!, {R0} \n\t"\ "STMDB LR!, {R0} \n\t" \
\ \
/* Store the new top of stack for the task. */ \ /* Store the new top of stack for the task. */ \
"LDR R0, =pxCurrentTCB \n\t"\ "LDR R0, =pxCurrentTCB \n\t" \
"LDR R0, [R0] \n\t"\ "LDR R0, [R0] \n\t" \
"STR LR, [R0] \n\t"\ "STR LR, [R0] \n\t" \
); \ ); \
( void ) ulCriticalNesting; \ ( void ) ulCriticalNesting; \
( void ) pxCurrentTCB; \ ( void ) pxCurrentTCB; \
} }
#define portYIELD_FROM_ISR() vTaskSwitchContext() #define portYIELD_FROM_ISR() vTaskSwitchContext()
#define portYIELD() __asm volatile ( "SWI 0" ) #define portYIELD() __asm volatile ( "SWI 0" )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -202,47 +202,48 @@
* defined then the utilities are defined as macros here - as per other ports. * defined then the utilities are defined as macros here - as per other ports.
*/ */
#ifdef THUMB_INTERWORK #ifdef THUMB_INTERWORK
extern void vPortDisableInterruptsFromThumb( void ) __attribute__( ( naked ) ); extern void vPortDisableInterruptsFromThumb( void ) __attribute__ ((naked));
extern void vPortEnableInterruptsFromThumb( void ) __attribute__( ( naked ) ); extern void vPortEnableInterruptsFromThumb( void ) __attribute__ ((naked));
#define portDISABLE_INTERRUPTS() vPortDisableInterruptsFromThumb() #define portDISABLE_INTERRUPTS() vPortDisableInterruptsFromThumb()
#define portENABLE_INTERRUPTS() vPortEnableInterruptsFromThumb() #define portENABLE_INTERRUPTS() vPortEnableInterruptsFromThumb()
#else #else
#define portDISABLE_INTERRUPTS() \ #define portDISABLE_INTERRUPTS() \
__asm volatile ( \ __asm volatile ( \
"STMDB SP!, {R0} \n\t"/* Push R0. */\ "STMDB SP!, {R0} \n\t" /* Push R0. */ \
"MRS R0, CPSR \n\t"/* Get CPSR. */\ "MRS R0, CPSR \n\t" /* Get CPSR. */ \
"ORR R0, R0, #0xC0 \n\t"/* Disable IRQ, FIQ. */\ "ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */ \
"MSR CPSR, R0 \n\t"/* Write back modified value. */\ "MSR CPSR, R0 \n\t" /* Write back modified value. */ \
"LDMIA SP!, {R0} ") /* Pop R0. */ "LDMIA SP!, {R0} " ) /* Pop R0. */
#define portENABLE_INTERRUPTS() \ #define portENABLE_INTERRUPTS() \
__asm volatile ( \ __asm volatile ( \
"STMDB SP!, {R0} \n\t"/* Push R0. */\ "STMDB SP!, {R0} \n\t" /* Push R0. */ \
"MRS R0, CPSR \n\t"/* Get CPSR. */\ "MRS R0, CPSR \n\t" /* Get CPSR. */ \
"BIC R0, R0, #0xC0 \n\t"/* Enable IRQ, FIQ. */\ "BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */ \
"MSR CPSR, R0 \n\t"/* Write back modified value. */\ "MSR CPSR, R0 \n\t" /* Write back modified value. */ \
"LDMIA SP!, {R0} ") /* Pop R0. */ "LDMIA SP!, {R0} " ) /* Pop R0. */
#endif /* THUMB_INTERWORK */ #endif /* THUMB_INTERWORK */
extern void vPortEnterCritical( void ); extern void vPortEnterCritical( void );
extern void vPortExitCritical( void ); extern void vPortExitCritical( void );
#define portENTER_CRITICAL() vPortEnterCritical(); #define portENTER_CRITICAL() vPortEnterCritical();
#define portEXIT_CRITICAL() vPortExitCritical(); #define portEXIT_CRITICAL() vPortExitCritical();
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Task function macros as described on the FreeRTOS.org WEB site. */ /* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif
#endif /* PORTMACRO_H */ #endif /* PORTMACRO_H */

643
portable/GCC/ARM_CA53_64_BIT/port.c
View file

@ -19,8 +19,8 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * 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. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *
* http://www.FreeRTOS.org * https://www.FreeRTOS.org
* http://aws.amazon.com/freertos * https://github.com/FreeRTOS
* *
* 1 tab == 4 spaces! * 1 tab == 4 spaces!
*/ */
@ -33,104 +33,104 @@
#include "task.h" #include "task.h"
#ifndef configINTERRUPT_CONTROLLER_BASE_ADDRESS #ifndef configINTERRUPT_CONTROLLER_BASE_ADDRESS
#error configINTERRUPT_CONTROLLER_BASE_ADDRESS must be defined. See http: /*www.freertos.org/Using-FreeRTOS-on-Cortex-A-Embedded-Processors.html */ #error configINTERRUPT_CONTROLLER_BASE_ADDRESS must be defined. See http://www.freertos.org/Using-FreeRTOS-on-Cortex-A-Embedded-Processors.html
#endif #endif
#ifndef configINTERRUPT_CONTROLLER_CPU_INTERFACE_OFFSET #ifndef configINTERRUPT_CONTROLLER_CPU_INTERFACE_OFFSET
#error configINTERRUPT_CONTROLLER_CPU_INTERFACE_OFFSET must be defined. See http: /*www.freertos.org/Using-FreeRTOS-on-Cortex-A-Embedded-Processors.html */ #error configINTERRUPT_CONTROLLER_CPU_INTERFACE_OFFSET must be defined. See http://www.freertos.org/Using-FreeRTOS-on-Cortex-A-Embedded-Processors.html
#endif #endif
#ifndef configUNIQUE_INTERRUPT_PRIORITIES #ifndef configUNIQUE_INTERRUPT_PRIORITIES
#error configUNIQUE_INTERRUPT_PRIORITIES must be defined. See http: /*www.freertos.org/Using-FreeRTOS-on-Cortex-A-Embedded-Processors.html */ #error configUNIQUE_INTERRUPT_PRIORITIES must be defined. See http://www.freertos.org/Using-FreeRTOS-on-Cortex-A-Embedded-Processors.html
#endif #endif
#ifndef configSETUP_TICK_INTERRUPT #ifndef configSETUP_TICK_INTERRUPT
#error configSETUP_TICK_INTERRUPT() must be defined. See http: /*www.freertos.org/Using-FreeRTOS-on-Cortex-A-Embedded-Processors.html */ #error configSETUP_TICK_INTERRUPT() must be defined. See http://www.freertos.org/Using-FreeRTOS-on-Cortex-A-Embedded-Processors.html
#endif /* configSETUP_TICK_INTERRUPT */ #endif /* configSETUP_TICK_INTERRUPT */
#ifndef configMAX_API_CALL_INTERRUPT_PRIORITY #ifndef configMAX_API_CALL_INTERRUPT_PRIORITY
#error configMAX_API_CALL_INTERRUPT_PRIORITY must be defined. See http: /*www.freertos.org/Using-FreeRTOS-on-Cortex-A-Embedded-Processors.html */ #error configMAX_API_CALL_INTERRUPT_PRIORITY must be defined. See http://www.freertos.org/Using-FreeRTOS-on-Cortex-A-Embedded-Processors.html
#endif #endif
#if configMAX_API_CALL_INTERRUPT_PRIORITY == 0 #if configMAX_API_CALL_INTERRUPT_PRIORITY == 0
#error configMAX_API_CALL_INTERRUPT_PRIORITY must not be set to 0 #error configMAX_API_CALL_INTERRUPT_PRIORITY must not be set to 0
#endif #endif
#if configMAX_API_CALL_INTERRUPT_PRIORITY > configUNIQUE_INTERRUPT_PRIORITIES #if configMAX_API_CALL_INTERRUPT_PRIORITY > configUNIQUE_INTERRUPT_PRIORITIES
#error configMAX_API_CALL_INTERRUPT_PRIORITY must be less than or equal to configUNIQUE_INTERRUPT_PRIORITIES as the lower the numeric priority value the higher the logical interrupt priority #error configMAX_API_CALL_INTERRUPT_PRIORITY must be less than or equal to configUNIQUE_INTERRUPT_PRIORITIES as the lower the numeric priority value the higher the logical interrupt priority
#endif #endif
#if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1 #if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1
/* Check the configuration. */ /* Check the configuration. */
#if ( configMAX_PRIORITIES > 32 ) #if( configMAX_PRIORITIES > 32 )
#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. #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.
#endif #endif
#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */ #endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */
/* In case security extensions are implemented. */ /* In case security extensions are implemented. */
#if configMAX_API_CALL_INTERRUPT_PRIORITY <= ( configUNIQUE_INTERRUPT_PRIORITIES / 2 ) #if configMAX_API_CALL_INTERRUPT_PRIORITY <= ( configUNIQUE_INTERRUPT_PRIORITIES / 2 )
#error configMAX_API_CALL_INTERRUPT_PRIORITY must be greater than ( configUNIQUE_INTERRUPT_PRIORITIES / 2 ) #error configMAX_API_CALL_INTERRUPT_PRIORITY must be greater than ( configUNIQUE_INTERRUPT_PRIORITIES / 2 )
#endif #endif
/* Some vendor specific files default configCLEAR_TICK_INTERRUPT() in /* Some vendor specific files default configCLEAR_TICK_INTERRUPT() in
* portmacro.h. */ portmacro.h. */
#ifndef configCLEAR_TICK_INTERRUPT #ifndef configCLEAR_TICK_INTERRUPT
#define configCLEAR_TICK_INTERRUPT() #define configCLEAR_TICK_INTERRUPT()
#endif #endif
/* A critical section is exited when the critical section nesting count reaches /* A critical section is exited when the critical section nesting count reaches
* this value. */ this value. */
#define portNO_CRITICAL_NESTING ( ( size_t ) 0 ) #define portNO_CRITICAL_NESTING ( ( size_t ) 0 )
/* In all GICs 255 can be written to the priority mask register to unmask all /* In all GICs 255 can be written to the priority mask register to unmask all
* (but the lowest) interrupt priority. */ (but the lowest) interrupt priority. */
#define portUNMASK_VALUE ( 0xFFUL ) #define portUNMASK_VALUE ( 0xFFUL )
/* Tasks are not created with a floating point context, but can be given a /* Tasks are not created with a floating point context, but can be given a
* floating point context after they have been created. A variable is stored as floating point context after they have been created. A variable is stored as
* part of the tasks context that holds portNO_FLOATING_POINT_CONTEXT if the task part of the tasks context that holds portNO_FLOATING_POINT_CONTEXT if the task
* does not have an FPU context, or any other value if the task does have an FPU does not have an FPU context, or any other value if the task does have an FPU
* context. */ context. */
#define portNO_FLOATING_POINT_CONTEXT ( ( StackType_t ) 0 ) #define portNO_FLOATING_POINT_CONTEXT ( ( StackType_t ) 0 )
/* Constants required to setup the initial task context. */ /* Constants required to setup the initial task context. */
#define portSP_ELx ( ( StackType_t ) 0x01 ) #define portSP_ELx ( ( StackType_t ) 0x01 )
#define portSP_EL0 ( ( StackType_t ) 0x00 ) #define portSP_EL0 ( ( StackType_t ) 0x00 )
#if defined( GUEST ) #if defined( GUEST )
#define portEL1 ( ( StackType_t ) 0x04 ) #define portEL1 ( ( StackType_t ) 0x04 )
#define portINITIAL_PSTATE ( portEL1 | portSP_EL0 ) #define portINITIAL_PSTATE ( portEL1 | portSP_EL0 )
#else #else
#define portEL3 ( ( StackType_t ) 0x0c ) #define portEL3 ( ( StackType_t ) 0x0c )
/* At the time of writing, the BSP only supports EL3. */ /* At the time of writing, the BSP only supports EL3. */
#define portINITIAL_PSTATE ( portEL3 | portSP_EL0 ) #define portINITIAL_PSTATE ( portEL3 | portSP_EL0 )
#endif #endif
/* Used by portASSERT_IF_INTERRUPT_PRIORITY_INVALID() when ensuring the binary /* Used by portASSERT_IF_INTERRUPT_PRIORITY_INVALID() when ensuring the binary
* point is zero. */ point is zero. */
#define portBINARY_POINT_BITS ( ( uint8_t ) 0x03 ) #define portBINARY_POINT_BITS ( ( uint8_t ) 0x03 )
/* Masks all bits in the APSR other than the mode bits. */ /* Masks all bits in the APSR other than the mode bits. */
#define portAPSR_MODE_BITS_MASK ( 0x0C ) #define portAPSR_MODE_BITS_MASK ( 0x0C )
/* The I bit in the DAIF bits. */ /* The I bit in the DAIF bits. */
#define portDAIF_I ( 0x80 ) #define portDAIF_I ( 0x80 )
/* Macro to unmask all interrupt priorities. */ /* Macro to unmask all interrupt priorities. */
#define portCLEAR_INTERRUPT_MASK() \ #define portCLEAR_INTERRUPT_MASK() \
{ \ { \
portDISABLE_INTERRUPTS(); \ portDISABLE_INTERRUPTS(); \
portICCPMR_PRIORITY_MASK_REGISTER = portUNMASK_VALUE; \ portICCPMR_PRIORITY_MASK_REGISTER = portUNMASK_VALUE; \
__asm volatile ( "DSB SY \n" \ __asm volatile ( "DSB SY \n" \
"ISB SY \n"); \ "ISB SY \n" ); \
portENABLE_INTERRUPTS(); \ portENABLE_INTERRUPTS(); \
} }
/* Hardware specifics used when sanity checking the configuration. */ /* Hardware specifics used when sanity checking the configuration. */
#define portINTERRUPT_PRIORITY_REGISTER_OFFSET 0x400UL #define portINTERRUPT_PRIORITY_REGISTER_OFFSET 0x400UL
#define portMAX_8_BIT_VALUE ( ( uint8_t ) 0xff ) #define portMAX_8_BIT_VALUE ( ( uint8_t ) 0xff )
#define portBIT_0_SET ( ( uint8_t ) 0x01 ) #define portBIT_0_SET ( ( uint8_t ) 0x01 )
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@ -143,381 +143,376 @@ extern void vPortRestoreTaskContext( void );
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* A variable is used to keep track of the critical section nesting. This /* A variable is used to keep track of the critical section nesting. This
* variable has to be stored as part of the task context and must be initialised to variable has to be stored as part of the task context and must be initialised to
* a non zero value to ensure interrupts don't inadvertently become unmasked before a non zero value to ensure interrupts don't inadvertently become unmasked before
* the scheduler starts. As it is stored as part of the task context it will the scheduler starts. As it is stored as part of the task context it will
* automatically be set to 0 when the first task is started. */ automatically be set to 0 when the first task is started. */
volatile uint64_t ullCriticalNesting = 9999ULL; volatile uint64_t ullCriticalNesting = 9999ULL;
/* Saved as part of the task context. If ullPortTaskHasFPUContext is non-zero /* Saved as part of the task context. If ullPortTaskHasFPUContext is non-zero
* then floating point context must be saved and restored for the task. */ then floating point context must be saved and restored for the task. */
uint64_t ullPortTaskHasFPUContext = pdFALSE; uint64_t ullPortTaskHasFPUContext = pdFALSE;
/* Set to 1 to pend a context switch from an ISR. */ /* Set to 1 to pend a context switch from an ISR. */
uint64_t ullPortYieldRequired = pdFALSE; uint64_t ullPortYieldRequired = pdFALSE;
/* Counts the interrupt nesting depth. A context switch is only performed if /* Counts the interrupt nesting depth. A context switch is only performed if
* if the nesting depth is 0. */ if the nesting depth is 0. */
uint64_t ullPortInterruptNesting = 0; uint64_t ullPortInterruptNesting = 0;
/* Used in the ASM code. */ /* Used in the ASM code. */
__attribute__( ( used ) ) const uint64_t ullICCEOIR = portICCEOIR_END_OF_INTERRUPT_REGISTER_ADDRESS; __attribute__(( used )) const uint64_t ullICCEOIR = portICCEOIR_END_OF_INTERRUPT_REGISTER_ADDRESS;
__attribute__( ( used ) ) const uint64_t ullICCIAR = portICCIAR_INTERRUPT_ACKNOWLEDGE_REGISTER_ADDRESS; __attribute__(( used )) const uint64_t ullICCIAR = portICCIAR_INTERRUPT_ACKNOWLEDGE_REGISTER_ADDRESS;
__attribute__( ( used ) ) const uint64_t ullICCPMR = portICCPMR_PRIORITY_MASK_REGISTER_ADDRESS; __attribute__(( used )) const uint64_t ullICCPMR = portICCPMR_PRIORITY_MASK_REGISTER_ADDRESS;
__attribute__( ( used ) ) const uint64_t ullMaxAPIPriorityMask = ( configMAX_API_CALL_INTERRUPT_PRIORITY << portPRIORITY_SHIFT ); __attribute__(( used )) const uint64_t ullMaxAPIPriorityMask = ( configMAX_API_CALL_INTERRUPT_PRIORITY << portPRIORITY_SHIFT );
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* /*
* See header file for description. * See header file for description.
*/ */
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack, StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
TaskFunction_t pxCode,
void * pvParameters )
{ {
/* Setup the initial stack of the task. The stack is set exactly as /* Setup the initial stack of the task. The stack is set exactly as
* expected by the portRESTORE_CONTEXT() macro. */ expected by the portRESTORE_CONTEXT() macro. */
/* First all the general purpose registers. */ /* First all the general purpose registers. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x0101010101010101ULL; /* R1 */ *pxTopOfStack = 0x0101010101010101ULL; /* R1 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */ *pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x0303030303030303ULL; /* R3 */ *pxTopOfStack = 0x0303030303030303ULL; /* R3 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x0202020202020202ULL; /* R2 */ *pxTopOfStack = 0x0202020202020202ULL; /* R2 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x0505050505050505ULL; /* R5 */ *pxTopOfStack = 0x0505050505050505ULL; /* R5 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x0404040404040404ULL; /* R4 */ *pxTopOfStack = 0x0404040404040404ULL; /* R4 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x0707070707070707ULL; /* R7 */ *pxTopOfStack = 0x0707070707070707ULL; /* R7 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x0606060606060606ULL; /* R6 */ *pxTopOfStack = 0x0606060606060606ULL; /* R6 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x0909090909090909ULL; /* R9 */ *pxTopOfStack = 0x0909090909090909ULL; /* R9 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x0808080808080808ULL; /* R8 */ *pxTopOfStack = 0x0808080808080808ULL; /* R8 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x1111111111111111ULL; /* R11 */ *pxTopOfStack = 0x1111111111111111ULL; /* R11 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x1010101010101010ULL; /* R10 */ *pxTopOfStack = 0x1010101010101010ULL; /* R10 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x1313131313131313ULL; /* R13 */ *pxTopOfStack = 0x1313131313131313ULL; /* R13 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x1212121212121212ULL; /* R12 */ *pxTopOfStack = 0x1212121212121212ULL; /* R12 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x1515151515151515ULL; /* R15 */ *pxTopOfStack = 0x1515151515151515ULL; /* R15 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x1414141414141414ULL; /* R14 */ *pxTopOfStack = 0x1414141414141414ULL; /* R14 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x1717171717171717ULL; /* R17 */ *pxTopOfStack = 0x1717171717171717ULL; /* R17 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x1616161616161616ULL; /* R16 */ *pxTopOfStack = 0x1616161616161616ULL; /* R16 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x1919191919191919ULL; /* R19 */ *pxTopOfStack = 0x1919191919191919ULL; /* R19 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x1818181818181818ULL; /* R18 */ *pxTopOfStack = 0x1818181818181818ULL; /* R18 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x2121212121212121ULL; /* R21 */ *pxTopOfStack = 0x2121212121212121ULL; /* R21 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x2020202020202020ULL; /* R20 */ *pxTopOfStack = 0x2020202020202020ULL; /* R20 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x2323232323232323ULL; /* R23 */ *pxTopOfStack = 0x2323232323232323ULL; /* R23 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x2222222222222222ULL; /* R22 */ *pxTopOfStack = 0x2222222222222222ULL; /* R22 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x2525252525252525ULL; /* R25 */ *pxTopOfStack = 0x2525252525252525ULL; /* R25 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x2424242424242424ULL; /* R24 */ *pxTopOfStack = 0x2424242424242424ULL; /* R24 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x2727272727272727ULL; /* R27 */ *pxTopOfStack = 0x2727272727272727ULL; /* R27 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x2626262626262626ULL; /* R26 */ *pxTopOfStack = 0x2626262626262626ULL; /* R26 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x2929292929292929ULL; /* R29 */ *pxTopOfStack = 0x2929292929292929ULL; /* R29 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = 0x2828282828282828ULL; /* R28 */ *pxTopOfStack = 0x2828282828282828ULL; /* R28 */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x00; /* XZR - has no effect, used so there are an even number of registers. */ *pxTopOfStack = ( StackType_t ) 0x00; /* XZR - has no effect, used so there are an even number of registers. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) 0x00; /* R30 - procedure call link register. */ *pxTopOfStack = ( StackType_t ) 0x00; /* R30 - procedure call link register. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = portINITIAL_PSTATE; *pxTopOfStack = portINITIAL_PSTATE;
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = ( StackType_t ) pxCode; /* Exception return address. */ *pxTopOfStack = ( StackType_t ) pxCode; /* Exception return address. */
pxTopOfStack--; pxTopOfStack--;
/* The task will start with a critical nesting count of 0 as interrupts are /* The task will start with a critical nesting count of 0 as interrupts are
* enabled. */ enabled. */
*pxTopOfStack = portNO_CRITICAL_NESTING; *pxTopOfStack = portNO_CRITICAL_NESTING;
pxTopOfStack--; pxTopOfStack--;
/* The task will start without a floating point context. A task that uses /* The task will start without a floating point context. A task that uses
* the floating point hardware must call vPortTaskUsesFPU() before executing the floating point hardware must call vPortTaskUsesFPU() before executing
* any floating point instructions. */ any floating point instructions. */
*pxTopOfStack = portNO_FLOATING_POINT_CONTEXT; *pxTopOfStack = portNO_FLOATING_POINT_CONTEXT;
return pxTopOfStack; return pxTopOfStack;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
BaseType_t xPortStartScheduler( void ) BaseType_t xPortStartScheduler( void )
{ {
uint32_t ulAPSR; uint32_t ulAPSR;
#if ( configASSERT_DEFINED == 1 ) #if( configASSERT_DEFINED == 1 )
{ {
volatile uint32_t ulOriginalPriority; volatile uint32_t ulOriginalPriority;
volatile uint8_t * const pucFirstUserPriorityRegister = ( volatile uint8_t * const ) ( configINTERRUPT_CONTROLLER_BASE_ADDRESS + portINTERRUPT_PRIORITY_REGISTER_OFFSET ); volatile uint8_t * const pucFirstUserPriorityRegister = ( volatile uint8_t * const ) ( configINTERRUPT_CONTROLLER_BASE_ADDRESS + portINTERRUPT_PRIORITY_REGISTER_OFFSET );
volatile uint8_t ucMaxPriorityValue; volatile uint8_t ucMaxPriorityValue;
/* Determine how many priority bits are implemented in the GIC. /* Determine how many priority bits are implemented in the GIC.
*
* Save the interrupt priority value that is about to be clobbered. */
ulOriginalPriority = *pucFirstUserPriorityRegister;
/* Determine the number of priority bits available. First write to Save the interrupt priority value that is about to be clobbered. */
* all possible bits. */ ulOriginalPriority = *pucFirstUserPriorityRegister;
*pucFirstUserPriorityRegister = portMAX_8_BIT_VALUE;
/* Read the value back to see how many bits stuck. */ /* Determine the number of priority bits available. First write to
ucMaxPriorityValue = *pucFirstUserPriorityRegister; all possible bits. */
*pucFirstUserPriorityRegister = portMAX_8_BIT_VALUE;
/* Shift to the least significant bits. */ /* Read the value back to see how many bits stuck. */
while( ( ucMaxPriorityValue & portBIT_0_SET ) != portBIT_0_SET ) ucMaxPriorityValue = *pucFirstUserPriorityRegister;
{
ucMaxPriorityValue >>= ( uint8_t ) 0x01;
}
/* Sanity check configUNIQUE_INTERRUPT_PRIORITIES matches the read /* Shift to the least significant bits. */
* value. */ while( ( ucMaxPriorityValue & portBIT_0_SET ) != portBIT_0_SET )
{
ucMaxPriorityValue >>= ( uint8_t ) 0x01;
}
configASSERT( ucMaxPriorityValue >= portLOWEST_INTERRUPT_PRIORITY ); /* Sanity check configUNIQUE_INTERRUPT_PRIORITIES matches the read
value. */
configASSERT( ucMaxPriorityValue >= portLOWEST_INTERRUPT_PRIORITY );
/* Restore the clobbered interrupt priority register to its original /* Restore the clobbered interrupt priority register to its original
* value. */ value. */
*pucFirstUserPriorityRegister = ulOriginalPriority; *pucFirstUserPriorityRegister = ulOriginalPriority;
} }
#endif /* conifgASSERT_DEFINED */ #endif /* conifgASSERT_DEFINED */
/* At the time of writing, the BSP only supports EL3. */ /* At the time of writing, the BSP only supports EL3. */
__asm volatile ( "MRS %0, CurrentEL" : "=r" ( ulAPSR ) ); __asm volatile ( "MRS %0, CurrentEL" : "=r" ( ulAPSR ) );
ulAPSR &= portAPSR_MODE_BITS_MASK; ulAPSR &= portAPSR_MODE_BITS_MASK;
#if defined( GUEST ) #if defined( GUEST )
#warning Building for execution as a guest under XEN. THIS IS NOT A FULLY TESTED PATH. #warning Building for execution as a guest under XEN. THIS IS NOT A FULLY TESTED PATH.
configASSERT( ulAPSR == portEL1 ); configASSERT( ulAPSR == portEL1 );
if( ulAPSR == portEL1 )
#else
configASSERT( ulAPSR == portEL3 );
if( ulAPSR == portEL3 )
#endif
{
/* Only continue if the binary point value is set to its lowest possible
setting. See the comments in vPortValidateInterruptPriority() below for
more information. */
configASSERT( ( portICCBPR_BINARY_POINT_REGISTER & portBINARY_POINT_BITS ) <= portMAX_BINARY_POINT_VALUE );
if( ulAPSR == portEL1 ) if( ( portICCBPR_BINARY_POINT_REGISTER & portBINARY_POINT_BITS ) <= portMAX_BINARY_POINT_VALUE )
#else {
configASSERT( ulAPSR == portEL3 ); /* Interrupts are turned off in the CPU itself to ensure a tick does
not execute while the scheduler is being started. Interrupts are
automatically turned back on in the CPU when the first task starts
executing. */
portDISABLE_INTERRUPTS();
if( ulAPSR == portEL3 ) /* Start the timer that generates the tick ISR. */
#endif configSETUP_TICK_INTERRUPT();
{
/* Only continue if the binary point value is set to its lowest possible
* setting. See the comments in vPortValidateInterruptPriority() below for
* more information. */
configASSERT( ( portICCBPR_BINARY_POINT_REGISTER & portBINARY_POINT_BITS ) <= portMAX_BINARY_POINT_VALUE );
if( ( portICCBPR_BINARY_POINT_REGISTER & portBINARY_POINT_BITS ) <= portMAX_BINARY_POINT_VALUE ) /* Start the first task executing. */
{ vPortRestoreTaskContext();
/* Interrupts are turned off in the CPU itself to ensure a tick does }
* not execute while the scheduler is being started. Interrupts are }
* automatically turned back on in the CPU when the first task starts
* executing. */
portDISABLE_INTERRUPTS();
/* Start the timer that generates the tick ISR. */ return 0;
configSETUP_TICK_INTERRUPT();
/* Start the first task executing. */
vPortRestoreTaskContext();
}
}
return 0;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortEndScheduler( void ) void vPortEndScheduler( void )
{ {
/* Not implemented in ports where there is nothing to return to. /* Not implemented in ports where there is nothing to return to.
* Artificially force an assert. */ Artificially force an assert. */
configASSERT( ullCriticalNesting == 1000ULL ); configASSERT( ullCriticalNesting == 1000ULL );
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortEnterCritical( void ) void vPortEnterCritical( void )
{ {
/* Mask interrupts up to the max syscall interrupt priority. */ /* Mask interrupts up to the max syscall interrupt priority. */
uxPortSetInterruptMask(); uxPortSetInterruptMask();
/* Now interrupts are disabled ullCriticalNesting can be accessed /* Now interrupts are disabled ullCriticalNesting can be accessed
* directly. Increment ullCriticalNesting to keep a count of how many times directly. Increment ullCriticalNesting to keep a count of how many times
* portENTER_CRITICAL() has been called. */ portENTER_CRITICAL() has been called. */
ullCriticalNesting++; ullCriticalNesting++;
/* This is not the interrupt safe version of the enter critical function so /* This is not the interrupt safe version of the enter critical function so
* assert() if it is being called from an interrupt context. Only API assert() if it is being called from an interrupt context. Only API
* functions that end in "FromISR" can be used in an interrupt. Only assert if functions that end in "FromISR" can be used in an interrupt. Only assert if
* the critical nesting count is 1 to protect against recursive calls if the the critical nesting count is 1 to protect against recursive calls if the
* assert function also uses a critical section. */ assert function also uses a critical section. */
if( ullCriticalNesting == 1ULL ) if( ullCriticalNesting == 1ULL )
{ {
configASSERT( ullPortInterruptNesting == 0 ); configASSERT( ullPortInterruptNesting == 0 );
} }
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortExitCritical( void ) void vPortExitCritical( void )
{ {
if( ullCriticalNesting > portNO_CRITICAL_NESTING ) if( ullCriticalNesting > portNO_CRITICAL_NESTING )
{ {
/* Decrement the nesting count as the critical section is being /* Decrement the nesting count as the critical section is being
* exited. */ exited. */
ullCriticalNesting--; ullCriticalNesting--;
/* If the nesting level has reached zero then all interrupt /* If the nesting level has reached zero then all interrupt
* priorities must be re-enabled. */ priorities must be re-enabled. */
if( ullCriticalNesting == portNO_CRITICAL_NESTING ) if( ullCriticalNesting == portNO_CRITICAL_NESTING )
{ {
/* Critical nesting has reached zero so all interrupt priorities /* Critical nesting has reached zero so all interrupt priorities
* should be unmasked. */ should be unmasked. */
portCLEAR_INTERRUPT_MASK(); portCLEAR_INTERRUPT_MASK();
} }
} }
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void FreeRTOS_Tick_Handler( void ) void FreeRTOS_Tick_Handler( void )
{ {
/* Must be the lowest possible priority. */ /* Must be the lowest possible priority. */
#if !defined( QEMU ) #if !defined( QEMU )
{ {
configASSERT( portICCRPR_RUNNING_PRIORITY_REGISTER == ( uint32_t ) ( portLOWEST_USABLE_INTERRUPT_PRIORITY << portPRIORITY_SHIFT ) ); configASSERT( portICCRPR_RUNNING_PRIORITY_REGISTER == ( uint32_t ) ( portLOWEST_USABLE_INTERRUPT_PRIORITY << portPRIORITY_SHIFT ) );
} }
#endif #endif
/* Interrupts should not be enabled before this point. */ /* Interrupts should not be enabled before this point. */
#if ( configASSERT_DEFINED == 1 ) #if( configASSERT_DEFINED == 1 )
{ {
uint32_t ulMaskBits; uint32_t ulMaskBits;
__asm volatile ( "mrs %0, daif" : "=r" ( ulMaskBits )::"memory" ); __asm volatile( "mrs %0, daif" : "=r"( ulMaskBits ) :: "memory" );
configASSERT( ( ulMaskBits & portDAIF_I ) != 0 ); configASSERT( ( ulMaskBits & portDAIF_I ) != 0 );
} }
#endif /* configASSERT_DEFINED */ #endif /* configASSERT_DEFINED */
/* Set interrupt mask before altering scheduler structures. The tick /* Set interrupt mask before altering scheduler structures. The tick
* handler runs at the lowest priority, so interrupts cannot already be masked, handler runs at the lowest priority, so interrupts cannot already be masked,
* so there is no need to save and restore the current mask value. It is so there is no need to save and restore the current mask value. It is
* necessary to turn off interrupts in the CPU itself while the ICCPMR is being necessary to turn off interrupts in the CPU itself while the ICCPMR is being
* updated. */ updated. */
portICCPMR_PRIORITY_MASK_REGISTER = ( uint32_t ) ( configMAX_API_CALL_INTERRUPT_PRIORITY << portPRIORITY_SHIFT ); portICCPMR_PRIORITY_MASK_REGISTER = ( uint32_t ) ( configMAX_API_CALL_INTERRUPT_PRIORITY << portPRIORITY_SHIFT );
__asm volatile ( "dsb sy \n" __asm volatile ( "dsb sy \n"
"isb sy \n"::: "memory" ); "isb sy \n" ::: "memory" );
/* Ok to enable interrupts after the interrupt source has been cleared. */ /* Ok to enable interrupts after the interrupt source has been cleared. */
configCLEAR_TICK_INTERRUPT(); configCLEAR_TICK_INTERRUPT();
portENABLE_INTERRUPTS(); portENABLE_INTERRUPTS();
/* Increment the RTOS tick. */ /* Increment the RTOS tick. */
if( xTaskIncrementTick() != pdFALSE ) if( xTaskIncrementTick() != pdFALSE )
{ {
ullPortYieldRequired = pdTRUE; ullPortYieldRequired = pdTRUE;
} }
/* Ensure all interrupt priorities are active again. */ /* Ensure all interrupt priorities are active again. */
portCLEAR_INTERRUPT_MASK(); portCLEAR_INTERRUPT_MASK();
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortTaskUsesFPU( void ) void vPortTaskUsesFPU( void )
{ {
/* A task is registering the fact that it needs an FPU context. Set the /* A task is registering the fact that it needs an FPU context. Set the
* FPU flag (which is saved as part of the task context). */ FPU flag (which is saved as part of the task context). */
ullPortTaskHasFPUContext = pdTRUE; ullPortTaskHasFPUContext = pdTRUE;
/* Consider initialising the FPSR here - but probably not necessary in /* Consider initialising the FPSR here - but probably not necessary in
* AArch64. */ AArch64. */
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
void vPortClearInterruptMask( UBaseType_t uxNewMaskValue ) void vPortClearInterruptMask( UBaseType_t uxNewMaskValue )
{ {
if( uxNewMaskValue == pdFALSE ) if( uxNewMaskValue == pdFALSE )
{ {
portCLEAR_INTERRUPT_MASK(); portCLEAR_INTERRUPT_MASK();
} }
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
UBaseType_t uxPortSetInterruptMask( void ) UBaseType_t uxPortSetInterruptMask( void )
{ {
uint32_t ulReturn; uint32_t ulReturn;
/* Interrupt in the CPU must be turned off while the ICCPMR is being /* Interrupt in the CPU must be turned off while the ICCPMR is being
* updated. */ updated. */
portDISABLE_INTERRUPTS(); portDISABLE_INTERRUPTS();
if( portICCPMR_PRIORITY_MASK_REGISTER == ( uint32_t ) ( configMAX_API_CALL_INTERRUPT_PRIORITY << portPRIORITY_SHIFT ) )
{
/* Interrupts were already masked. */
ulReturn = pdTRUE;
}
else
{
ulReturn = pdFALSE;
portICCPMR_PRIORITY_MASK_REGISTER = ( uint32_t ) ( configMAX_API_CALL_INTERRUPT_PRIORITY << portPRIORITY_SHIFT );
__asm volatile ( "dsb sy \n"
"isb sy \n" ::: "memory" );
}
portENABLE_INTERRUPTS();
if( portICCPMR_PRIORITY_MASK_REGISTER == ( uint32_t ) ( configMAX_API_CALL_INTERRUPT_PRIORITY << portPRIORITY_SHIFT ) ) return ulReturn;
{
/* Interrupts were already masked. */
ulReturn = pdTRUE;
}
else
{
ulReturn = pdFALSE;
portICCPMR_PRIORITY_MASK_REGISTER = ( uint32_t ) ( configMAX_API_CALL_INTERRUPT_PRIORITY << portPRIORITY_SHIFT );
__asm volatile ( "dsb sy \n"
"isb sy \n"::: "memory" );
}
portENABLE_INTERRUPTS();
return ulReturn;
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#if ( configASSERT_DEFINED == 1 ) #if( configASSERT_DEFINED == 1 )
void vPortValidateInterruptPriority( void ) void vPortValidateInterruptPriority( void )
{ {
/* The following assertion will fail if a service routine (ISR) for /* The following assertion will fail if a service routine (ISR) for
* an interrupt that has been assigned a priority above an interrupt that has been assigned a priority above
* configMAX_SYSCALL_INTERRUPT_PRIORITY calls an ISR safe FreeRTOS API configMAX_SYSCALL_INTERRUPT_PRIORITY calls an ISR safe FreeRTOS API
* function. ISR safe FreeRTOS API functions must *only* be called function. ISR safe FreeRTOS API functions must *only* be called
* from interrupts that have been assigned a priority at or below from interrupts that have been assigned a priority at or below
* configMAX_SYSCALL_INTERRUPT_PRIORITY. configMAX_SYSCALL_INTERRUPT_PRIORITY.
*
* Numerically low interrupt priority numbers represent logically high
* interrupt priorities, therefore the priority of the interrupt must
* be set to a value equal to or numerically *higher* than
* configMAX_SYSCALL_INTERRUPT_PRIORITY.
*
* FreeRTOS maintains separate thread and ISR API functions to ensure
* interrupt entry is as fast and simple as possible. */
configASSERT( portICCRPR_RUNNING_PRIORITY_REGISTER >= ( uint32_t ) ( configMAX_API_CALL_INTERRUPT_PRIORITY << portPRIORITY_SHIFT ) );
/* Priority grouping: The interrupt controller (GIC) allows the bits Numerically low interrupt priority numbers represent logically high
* that define each interrupt's priority to be split between bits that interrupt priorities, therefore the priority of the interrupt must
* define the interrupt's pre-emption priority bits and bits that define be set to a value equal to or numerically *higher* than
* the interrupt's sub-priority. For simplicity all bits must be defined configMAX_SYSCALL_INTERRUPT_PRIORITY.
* to be pre-emption priority bits. The following assertion will fail if
* this is not the case (if some bits represent a sub-priority). FreeRTOS maintains separate thread and ISR API functions to ensure
* interrupt entry is as fast and simple as possible. */
* The priority grouping is configured by the GIC's binary point register configASSERT( portICCRPR_RUNNING_PRIORITY_REGISTER >= ( uint32_t ) ( configMAX_API_CALL_INTERRUPT_PRIORITY << portPRIORITY_SHIFT ) );
* (ICCBPR). Writting 0 to ICCBPR will ensure it is set to its lowest
* possible value (which may be above 0). */ /* Priority grouping: The interrupt controller (GIC) allows the bits
configASSERT( ( portICCBPR_BINARY_POINT_REGISTER & portBINARY_POINT_BITS ) <= portMAX_BINARY_POINT_VALUE ); that define each interrupt's priority to be split between bits that
} define the interrupt's pre-emption priority bits and bits that define
the interrupt's sub-priority. For simplicity all bits must be defined
to be pre-emption priority bits. The following assertion will fail if
this is not the case (if some bits represent a sub-priority).
The priority grouping is configured by the GIC's binary point register
(ICCBPR). Writting 0 to ICCBPR will ensure it is set to its lowest
possible value (which may be above 0). */
configASSERT( ( portICCBPR_BINARY_POINT_REGISTER & portBINARY_POINT_BITS ) <= portMAX_BINARY_POINT_VALUE );
}
#endif /* configASSERT_DEFINED */ #endif /* configASSERT_DEFINED */
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/

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