294 lines
12 KiB
C
294 lines
12 KiB
C
/*********************************************************************
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* SEGGER Microcontroller GmbH *
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* The Embedded Experts *
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**********************************************************************
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* *
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* (c) 1995 - 2021 SEGGER Microcontroller GmbH *
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* *
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* www.segger.com Support: support@segger.com *
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* *
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**********************************************************************
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* *
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* SEGGER SystemView * Real-time application analysis *
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* *
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**********************************************************************
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* *
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* All rights reserved. *
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* *
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* SEGGER strongly recommends to not make any changes *
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* to or modify the source code of this software in order to stay *
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* compatible with the SystemView and RTT protocol, and J-Link. *
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* *
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* Redistribution and use in source and binary forms, with or *
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* without modification, are permitted provided that the following *
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* condition is met: *
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* *
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* o Redistributions of source code must retain the above copyright *
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* notice, this condition and the following disclaimer. *
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* *
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND *
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, *
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF *
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE *
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* DISCLAIMED. IN NO EVENT SHALL SEGGER Microcontroller BE LIABLE FOR *
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR *
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT *
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; *
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT *
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE *
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH *
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* DAMAGE. *
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* *
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**********************************************************************
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* *
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* SystemView version: 3.30 *
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* *
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**********************************************************************
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-------------------------- END-OF-HEADER -----------------------------
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File : SEGGER_SYSVIEW_FreeRTOS.c
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Purpose : Interface between FreeRTOS and SystemView.
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Revision: $Rev: 7947 $
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*/
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#include "FreeRTOS.h"
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#include "task.h"
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#include "SEGGER_SYSVIEW.h"
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#include "SEGGER_SYSVIEW_FreeRTOS.h"
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#include "string.h" // Required for memset
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typedef struct SYSVIEW_FREERTOS_TASK_STATUS SYSVIEW_FREERTOS_TASK_STATUS;
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struct SYSVIEW_FREERTOS_TASK_STATUS {
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U32 xHandle;
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const char* pcTaskName;
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unsigned uxCurrentPriority;
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U32 pxStack;
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unsigned uStackHighWaterMark;
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};
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static SYSVIEW_FREERTOS_TASK_STATUS _aTasks[SYSVIEW_FREERTOS_MAX_NOF_TASKS];
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static unsigned _NumTasks;
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/*********************************************************************
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*
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* _cbSendTaskList()
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*
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* Function description
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* This function is part of the link between FreeRTOS and SYSVIEW.
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* Called from SystemView when asked by the host, it uses SYSVIEW
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* functions to send the entire task list to the host.
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*/
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static void _cbSendTaskList(void) {
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unsigned n;
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for (n = 0; n < _NumTasks; n++) {
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#if INCLUDE_uxTaskGetStackHighWaterMark // Report Task Stack High Watermark
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_aTasks[n].uStackHighWaterMark = uxTaskGetStackHighWaterMark((TaskHandle_t)_aTasks[n].xHandle);
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#endif
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SYSVIEW_SendTaskInfo((U32)_aTasks[n].xHandle, _aTasks[n].pcTaskName, (unsigned)_aTasks[n].uxCurrentPriority, (U32)_aTasks[n].pxStack, (unsigned)_aTasks[n].uStackHighWaterMark);
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}
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}
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/*********************************************************************
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*
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* _cbGetTime()
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*
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* Function description
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* This function is part of the link between FreeRTOS and SYSVIEW.
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* Called from SystemView when asked by the host, returns the
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* current system time in micro seconds.
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*/
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static U64 _cbGetTime(void) {
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U64 Time;
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Time = xTaskGetTickCountFromISR();
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Time *= portTICK_PERIOD_MS;
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Time *= 1000;
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return Time;
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}
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/*********************************************************************
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*
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* Global functions
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* SYSVIEW_AddTask()
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*
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* Function description
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* Add a task to the internal list and record its information.
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*/
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void SYSVIEW_AddTask(U32 xHandle, const char* pcTaskName, unsigned uxCurrentPriority, U32 pxStack, unsigned uStackHighWaterMark) {
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if (memcmp(pcTaskName, "IDLE", 5) == 0) {
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return;
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}
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if (_NumTasks >= SYSVIEW_FREERTOS_MAX_NOF_TASKS) {
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SEGGER_SYSVIEW_Warn("SYSTEMVIEW: Could not record task information. Maximum number of tasks reached.");
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return;
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}
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_aTasks[_NumTasks].xHandle = xHandle;
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_aTasks[_NumTasks].pcTaskName = pcTaskName;
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_aTasks[_NumTasks].uxCurrentPriority = uxCurrentPriority;
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_aTasks[_NumTasks].pxStack = pxStack;
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_aTasks[_NumTasks].uStackHighWaterMark = uStackHighWaterMark;
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_NumTasks++;
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SYSVIEW_SendTaskInfo(xHandle, pcTaskName,uxCurrentPriority, pxStack, uStackHighWaterMark);
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}
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/*********************************************************************
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*
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* SYSVIEW_UpdateTask()
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*
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* Function description
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* Update a task in the internal list and record its information.
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*/
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void SYSVIEW_UpdateTask(U32 xHandle, const char* pcTaskName, unsigned uxCurrentPriority, U32 pxStack, unsigned uStackHighWaterMark) {
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unsigned n;
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if (memcmp(pcTaskName, "IDLE", 5) == 0) {
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return;
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}
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for (n = 0; n < _NumTasks; n++) {
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if (_aTasks[n].xHandle == xHandle) {
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break;
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}
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}
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if (n < _NumTasks) {
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_aTasks[n].pcTaskName = pcTaskName;
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_aTasks[n].uxCurrentPriority = uxCurrentPriority;
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_aTasks[n].pxStack = pxStack;
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_aTasks[n].uStackHighWaterMark = uStackHighWaterMark;
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SYSVIEW_SendTaskInfo(xHandle, pcTaskName, uxCurrentPriority, pxStack, uStackHighWaterMark);
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} else {
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SYSVIEW_AddTask(xHandle, pcTaskName, uxCurrentPriority, pxStack, uStackHighWaterMark);
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}
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}
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/*********************************************************************
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*
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* SYSVIEW_DeleteTask()
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*
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* Function description
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* Delete a task from the internal list.
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*/
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void SYSVIEW_DeleteTask(U32 xHandle) {
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unsigned n;
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if (_NumTasks == 0) {
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return; // Early out
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}
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for (n = 0; n < _NumTasks; n++) {
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if (_aTasks[n].xHandle == xHandle) {
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break;
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}
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}
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if (n == (_NumTasks - 1)) {
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//
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// Task is last item in list.
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// Simply zero the item and decrement number of tasks.
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//
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memset(&_aTasks[n], 0, sizeof(_aTasks[n]));
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_NumTasks--;
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} else if (n < _NumTasks) {
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//
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// Task is in the middle of the list.
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// Move last item to current position and decrement number of tasks.
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// Order of tasks does not really matter, so no need to move all following items.
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//
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_aTasks[n].xHandle = _aTasks[_NumTasks - 1].xHandle;
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_aTasks[n].pcTaskName = _aTasks[_NumTasks - 1].pcTaskName;
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_aTasks[n].uxCurrentPriority = _aTasks[_NumTasks - 1].uxCurrentPriority;
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_aTasks[n].pxStack = _aTasks[_NumTasks - 1].pxStack;
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_aTasks[n].uStackHighWaterMark = _aTasks[_NumTasks - 1].uStackHighWaterMark;
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memset(&_aTasks[_NumTasks - 1], 0, sizeof(_aTasks[_NumTasks - 1]));
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_NumTasks--;
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}
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}
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/*********************************************************************
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*
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* SYSVIEW_SendTaskInfo()
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*
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* Function description
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* Record task information.
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*/
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void SYSVIEW_SendTaskInfo(U32 TaskID, const char* sName, unsigned Prio, U32 StackBase, unsigned StackSize) {
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SEGGER_SYSVIEW_TASKINFO TaskInfo;
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memset(&TaskInfo, 0, sizeof(TaskInfo)); // Fill all elements with 0 to allow extending the structure in future version without breaking the code
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TaskInfo.TaskID = TaskID;
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TaskInfo.sName = sName;
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TaskInfo.Prio = Prio;
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TaskInfo.StackBase = StackBase;
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TaskInfo.StackSize = StackSize;
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SEGGER_SYSVIEW_SendTaskInfo(&TaskInfo);
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}
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/*********************************************************************
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*
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* SYSVIEW_RecordU32x4()
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*
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* Function description
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* Record an event with 4 parameters
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*/
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void SYSVIEW_RecordU32x4(unsigned Id, U32 Para0, U32 Para1, U32 Para2, U32 Para3) {
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U8 aPacket[SEGGER_SYSVIEW_INFO_SIZE + 4 * SEGGER_SYSVIEW_QUANTA_U32];
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U8* pPayload;
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//
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pPayload = SEGGER_SYSVIEW_PREPARE_PACKET(aPacket); // Prepare the packet for SystemView
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pPayload = SEGGER_SYSVIEW_EncodeU32(pPayload, Para0); // Add the first parameter to the packet
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pPayload = SEGGER_SYSVIEW_EncodeU32(pPayload, Para1); // Add the second parameter to the packet
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pPayload = SEGGER_SYSVIEW_EncodeU32(pPayload, Para2); // Add the third parameter to the packet
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pPayload = SEGGER_SYSVIEW_EncodeU32(pPayload, Para3); // Add the fourth parameter to the packet
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//
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SEGGER_SYSVIEW_SendPacket(&aPacket[0], pPayload, Id); // Send the packet
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}
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/*********************************************************************
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*
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* SYSVIEW_RecordU32x5()
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*
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* Function description
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* Record an event with 5 parameters
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*/
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void SYSVIEW_RecordU32x5(unsigned Id, U32 Para0, U32 Para1, U32 Para2, U32 Para3, U32 Para4) {
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U8 aPacket[SEGGER_SYSVIEW_INFO_SIZE + 5 * SEGGER_SYSVIEW_QUANTA_U32];
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U8* pPayload;
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//
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pPayload = SEGGER_SYSVIEW_PREPARE_PACKET(aPacket); // Prepare the packet for SystemView
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pPayload = SEGGER_SYSVIEW_EncodeU32(pPayload, Para0); // Add the first parameter to the packet
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pPayload = SEGGER_SYSVIEW_EncodeU32(pPayload, Para1); // Add the second parameter to the packet
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pPayload = SEGGER_SYSVIEW_EncodeU32(pPayload, Para2); // Add the third parameter to the packet
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pPayload = SEGGER_SYSVIEW_EncodeU32(pPayload, Para3); // Add the fourth parameter to the packet
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pPayload = SEGGER_SYSVIEW_EncodeU32(pPayload, Para4); // Add the fifth parameter to the packet
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//
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SEGGER_SYSVIEW_SendPacket(&aPacket[0], pPayload, Id); // Send the packet
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}
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/*********************************************************************
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*
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* Public API structures
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*
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**********************************************************************
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*/
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// Callbacks provided to SYSTEMVIEW by FreeRTOS
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const SEGGER_SYSVIEW_OS_API SYSVIEW_X_OS_TraceAPI = {
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_cbGetTime,
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_cbSendTaskList,
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};
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/*************************** End of file ****************************/
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