/*********************************************************************
*
* _cbSendTaskList()
*
* Function description
* This function is part of the link between FreeRTOS and SYSVIEW.
* Called from SystemView when asked by the host, it uses SYSVIEW
* functions to send the entire task list to the host.
*/
static void _cbSendTaskList(void) {
TaskStatus_t* pxTaskStatusArray;
UBaseType_t uxArraySize;
UBaseType_t x;
char cStatus;
#if INCLUDE_xTaskGetIdleTaskHandle
TaskHandle_t hIdle;
hIdle = xTaskGetIdleTaskHandle();
#endif
/* Take a snapshot of the number of tasks in case it changes while this
function is executing. */
uxArraySize = uxTaskGetNumberOfTasks();
/* Allocate an array index for each task. */
pxTaskStatusArray = pvPortMalloc( uxArraySize * sizeof( TaskStatus_t ) );
if( pxTaskStatusArray != NULL ) {
/* Generate the (binary) data. */
uxArraySize = uxTaskGetSystemState( pxTaskStatusArray, uxArraySize, NULL );
#if INCLUDE_xTaskGetIdleTaskHandle
/* only get Idle task handle if scheduler has been started */
if (xTaskGetSchedulerState()!=taskSCHEDULER_NOT_STARTED) {
hIdle = xTaskGetIdleTaskHandle();
} else {
hIdle = NULL;
}
#endif
/* Create a human readable table from the binary data. */
for( x = 0; x < uxArraySize; x++ ) {
uint8_t* pStack;
#if INCLUDE_pxTaskGetStackStart
pStack = pxTaskGetStackStart(pxTaskStatusArray[x].xHandle);
#else
pStack = (uint8_t*)0;
#endif
#if INCLUDE_xTaskGetIdleTaskHandle
if (pxTaskStatusArray[x].xHandle != hIdle) {
SYSVIEW_SendTaskInfo((unsigned)pxTaskStatusArray[x].xHandle, pxTaskStatusArray[x].pcTaskName, pxTaskStatusArray[x].uxCurrentPriority, (unsigned int)pStack, 0);
}
#else
if (memcmp(pxTaskStatusArray[x].pcTaskName, "IDLE", 5) != 0) {
SYSVIEW_SendTaskInfo((unsigned)pxTaskStatusArray[x].xHandle, pxTaskStatusArray[x].pcTaskName, pxTaskStatusArray[x].uxCurrentPriority, (unsigned int)pStack, 0);
}
#endif
}
/* Free the array again. */
vPortFree( pxTaskStatusArray );
}
}
/*********************************************************************
*
* _cbSendTaskList()
*
* Function description
* This function is part of the link between FreeRTOS and SYSVIEW.
* Called from SystemView when asked by the host, it uses SYSVIEW
* functions to send the entire task list to the host.
*/
static void _cbSendTaskList(void) {
unsigned n;
for (n = 0; n < _NumTasks; n++) {
#if INCLUDE_uxTaskGetStackHighWaterMark // Report Task Stack High Watermark
_aTasks[n].uStackHighWaterMark = uxTaskGetStackHighWaterMark((TaskHandle_t)_aTasks[n].xHandle);
#endif
SYSVIEW_SendTaskInfo((U32)_aTasks[n].xHandle, _aTasks[n].pcTaskName, (unsigned)_aTasks[n].uxCurrentPriority, (U32)_aTasks[n].pxStack, (unsigned)_aTasks[n].uStackHighWaterMark);
}
}
/*********************************************************************
*
* SYSVIEW_AddTask()
*
* Function description
* Add a task to the internal list and record its information.
*/
void SYSVIEW_AddTask(U32 xHandle, const char* pcTaskName, unsigned uxCurrentPriority, U32 pxStack, unsigned uStackHighWaterMark) {
if (memcmp(pcTaskName, "IDLE", 5) == 0) {
return;
}
if (_NumTasks >= SYSVIEW_FREERTOS_MAX_NOF_TASKS) {
SEGGER_SYSVIEW_Warn("SYSTEMVIEW: Could not record task information. Maximum number of tasks reached.");
return;
}
_aTasks[_NumTasks].xHandle = xHandle;
_aTasks[_NumTasks].pcTaskName = pcTaskName;
_aTasks[_NumTasks].uxCurrentPriority = uxCurrentPriority;
_aTasks[_NumTasks].pxStack = pxStack;
_aTasks[_NumTasks].uStackHighWaterMark = uStackHighWaterMark;
_NumTasks++;
SYSVIEW_SendTaskInfo(xHandle, pcTaskName,uxCurrentPriority, pxStack, uStackHighWaterMark);
}
/*********************************************************************
*
* SYSVIEW_UpdateTask()
*
* Function description
* Update a task in the internal list and record its information.
*/
void SYSVIEW_UpdateTask(U32 xHandle, const char* pcTaskName, unsigned uxCurrentPriority, U32 pxStack, unsigned uStackHighWaterMark) {
unsigned n;
if (memcmp(pcTaskName, "IDLE", 5) == 0) {
return;
}
for (n = 0; n < _NumTasks; n++) {
if (_aTasks[n].xHandle == xHandle) {
break;
}
}
if (n < _NumTasks) {
_aTasks[n].pcTaskName = pcTaskName;
_aTasks[n].uxCurrentPriority = uxCurrentPriority;
_aTasks[n].pxStack = pxStack;
_aTasks[n].uStackHighWaterMark = uStackHighWaterMark;
SYSVIEW_SendTaskInfo(xHandle, pcTaskName, uxCurrentPriority, pxStack, uStackHighWaterMark);
} else {
SYSVIEW_AddTask(xHandle, pcTaskName, uxCurrentPriority, pxStack, uStackHighWaterMark);
}
}