1 /*******************************************************************************
\r
2 * Tracealyzer v2.5.0 Recorder Library
\r
3 * Percepio AB, www.percepio.com
\r
6 * The public API of the trace recorder library.
\r
9 * This software is copyright Percepio AB. The recorder library is free for
\r
10 * use together with Percepio products. You may distribute the recorder library
\r
11 * in its original form, including modifications in trcHardwarePort.c/.h
\r
12 * given that these modification are clearly marked as your own modifications
\r
13 * and documented in the initial comment section of these source files.
\r
14 * This software is the intellectual property of Percepio AB and may not be
\r
15 * sold or in other ways commercially redistributed without explicit written
\r
16 * permission by Percepio AB.
\r
19 * The trace tool and recorder library is being delivered to you AS IS and
\r
20 * Percepio AB makes no warranty as to its use or performance. Percepio AB does
\r
21 * not and cannot warrant the performance or results you may obtain by using the
\r
22 * software or documentation. Percepio AB make no warranties, express or
\r
23 * implied, as to noninfringement of third party rights, merchantability, or
\r
24 * fitness for any particular purpose. In no event will Percepio AB, its
\r
25 * technology partners, or distributors be liable to you for any consequential,
\r
26 * incidental or special damages, including any lost profits or lost savings,
\r
27 * even if a representative of Percepio AB has been advised of the possibility
\r
28 * of such damages, or for any claim by any third party. Some jurisdictions do
\r
29 * not allow the exclusion or limitation of incidental, consequential or special
\r
30 * damages, or the exclusion of implied warranties or limitations on how long an
\r
31 * implied warranty may last, so the above limitations may not apply to you.
\r
33 * Copyright Percepio AB, 2013.
\r
35 ******************************************************************************/
\r
44 #include "trcKernelPort.h"
\r
46 #if (USE_TRACEALYZER_RECORDER == 1)
\r
48 #ifndef USE_SEPARATE_USER_EVENT_BUFFER
\r
49 #define USE_SEPARATE_USER_EVENT_BUFFER 0
\r
52 /*******************************************************************************
\r
53 * TRACE_STOP_HOOK - Hook Pointer Data Type
\r
55 * Declares a data type for a call back function that will be invoked whenever
\r
56 * the recorder is stopped.
\r
57 ******************************************************************************/
\r
58 typedef void (*TRACE_STOP_HOOK)(void);
\r
60 /*******************************************************************************
\r
63 * Points to a call back function that is called from vTraceStop().
\r
64 ******************************************************************************/
\r
65 extern TRACE_STOP_HOOK vTraceStopHookPtr;
\r
67 /*******************************************************************************
\r
68 * vTraceInitTraceData
\r
70 * Allocates, if necessary, and initializes the recorder data structure, based
\r
71 * on the constants in trcConfig.h.
\r
72 ******************************************************************************/
\r
73 void vTraceInitTraceData(void);
\r
75 /*******************************************************************************
\r
76 * vTraceSetRecorderData
\r
78 * If custom allocation is used, this function must be called so the recorder
\r
79 * library knows where to save the trace data.
\r
80 ******************************************************************************/
\r
81 #if (TRACE_DATA_ALLOCATION == TRACE_DATA_ALLOCATION_CUSTOM)
\r
82 void vTraceSetRecorderData(void* pRecorderData);
\r
85 /*******************************************************************************
\r
88 * Starts the recorder. The recorder will not be started if an error has been
\r
89 * indicated using vTraceError, e.g. if any of the Nx constants in trcConfig.h
\r
90 * has a too small value (NTASK, NQUEUE, etc).
\r
92 * Returns 1 if the recorder was started successfully.
\r
93 * Returns 0 if the recorder start was prevented due to a previous internal
\r
94 * error. In that case, check vTraceGetLastError to get the error message.
\r
95 * Any error message is also presented when opening a trace file.
\r
97 ******************************************************************************/
\r
98 uint32_t uiTraceStart(void);
\r
100 /*******************************************************************************
\r
103 * Starts the recorder. The recorder will not be started if an error has been
\r
104 * indicated using vTraceError, e.g. if any of the Nx constants in trcConfig.h
\r
105 * has a too small value (NTASK, NQUEUE, etc).
\r
107 * This function is obsolete, but has been saved for backwards compatibility.
\r
108 * We recommend using uiTraceStart instead.
\r
109 ******************************************************************************/
\r
110 void vTraceStart(void);
\r
112 /*******************************************************************************
\r
115 * Stops the recorder. The recording can be resumed by calling vTraceStart.
\r
116 * This does not reset the recorder. Use vTraceClear is that is desired.
\r
117 ******************************************************************************/
\r
118 void vTraceStop(void);
\r
120 /*******************************************************************************
\r
121 * xTraceGetLastError
\r
123 * Gives the last error message, if any. NULL if no error message is stored.
\r
124 * Any error message is also presented when opening a trace file.
\r
125 ******************************************************************************/
\r
126 char* xTraceGetLastError(void);
\r
128 /*******************************************************************************
\r
131 * Resets the recorder. Only necessary if a restart is desired - this is not
\r
132 * needed in the startup initialization.
\r
133 ******************************************************************************/
\r
134 void vTraceClear(void);
\r
136 /*******************************************************************************
\r
139 * Removes any previous error message generated by recorder calling vTraceError.
\r
140 * By calling this function, it may be possible to start/restart the trace
\r
141 * despite errors in the recorder, but there is no guarantee that the trace
\r
142 * recorder will work correctly in that case, depending on the type of error.
\r
143 ******************************************************************************/
\r
144 void vTraceClearError(int resetErrorMessage);
\r
146 #if (INCLUDE_ISR_TRACING == 1)
\r
148 /*******************************************************************************
\r
149 * vTraceSetISRProperties
\r
151 * Registers an Interrupt Service Routine in the recorder library, This must be
\r
152 * called before using vTraceStoreISRBegin to store ISR events. This is
\r
153 * typically called in the startup of the system, before the scheduler is
\r
157 * #define ID_ISR_TIMER1 1 // lowest valid ID is 1
\r
158 * #define PRIO_OF_ISR_TIMER1 3 // the hardware priority of the interrupt
\r
160 * vTraceSetISRProperties(ID_ISR_TIMER1, "ISRTimer1", PRIO_OF_ISR_TIMER1);
\r
162 * void ISR_handler()
\r
164 * portENTER_CRITICAL(); // Required if nested ISRs are allowed
\r
165 * vTraceStoreISRBegin(ID_OF_ISR_TIMER1);
\r
166 * portEXIT_CRITICAL();
\r
168 * portENTER_CRITICAL(); // Required if nested ISRs are allowed
\r
169 * vTraceStoreISREnd();
\r
170 * portEXIT_CRITICAL();
\r
172 ******************************************************************************/
\r
173 void vTraceSetISRProperties(objectHandleType handle, const char* name, char priority);
\r
175 /*******************************************************************************
\r
176 * vTraceStoreISRBegin
\r
178 * Registers the beginning of an Interrupt Service Routine.
\r
179 * If allowing nested ISRs, this must be called with interrupts disabled.
\r
182 * #define ID_ISR_TIMER1 1 // lowest valid ID is 1
\r
183 * #define PRIO_OF_ISR_TIMER1 3 // the hardware priority of the interrupt
\r
185 * vTraceSetISRProperties(ID_ISR_TIMER1, "ISRTimer1", PRIO_OF_ISR_TIMER1);
\r
187 * void ISR_handler()
\r
189 * portENTER_CRITICAL(); // Required if nested ISRs are allowed
\r
190 * vTraceStoreISRBegin(ID_OF_ISR_TIMER1);
\r
191 * portEXIT_CRITICAL();
\r
193 * portENTER_CRITICAL(); // Required if nested ISRs are allowed
\r
194 * vTraceStoreISREnd();
\r
195 * portEXIT_CRITICAL();
\r
198 ******************************************************************************/
\r
199 void vTraceStoreISRBegin(objectHandleType id);
\r
201 /*******************************************************************************
\r
202 * vTraceStoreISREnd
\r
204 * Registers the end of an Interrupt Service Routine.
\r
206 * If allowing nested ISRs, this must be called with interrupts disabled.
\r
209 * #define ID_ISR_TIMER1 1 // lowest valid ID is 1
\r
210 * #define PRIO_OF_ISR_TIMER1 3 // the hardware priority of the interrupt
\r
212 * vTraceSetISRProperties(ID_ISR_TIMER1, "ISRTimer1", PRIO_OF_ISR_TIMER1);
\r
214 * void ISR_handler()
\r
216 * portENTER_CRITICAL(); // Required if nested ISRs are allowed
\r
217 * vTraceStoreISRBegin(ID_OF_ISR_TIMER1);
\r
218 * portEXIT_CRITICAL();
\r
220 * portENTER_CRITICAL(); // Required if nested ISRs are allowed
\r
221 * vTraceStoreISREnd();
\r
222 * portEXIT_CRITICAL();
\r
225 ******************************************************************************/
\r
226 void vTraceStoreISREnd(void);
\r
229 /* If not including the ISR recording */
\r
231 void vTraceIncreaseISRActive(void);
\r
233 void vTraceDecreaseISRActive(void);
\r
235 #define vTraceSetISRProperties(handle, name, priority)
\r
236 #define vTraceStoreISRBegin(id) vTraceIncreaseISRActive()
\r
237 #define vTraceStoreISREnd() vTraceDecreaseISRActive()
\r
241 /*******************************************************************************
\r
242 * vvTraceTaskSkipDefaultInstanceFinishedEvents
\r
244 * This is useful if there are implicit Instance Finish Events, such as
\r
245 * vTaskDelayUntil or xQueueReceive, in a task where an explicit Instance Finish
\r
246 * Event has been defined. This function tells the recorder that only the
\r
247 * explicitly defined functions (using vTraceTaskInstanceIsFinished) should be
\r
248 * treated as Instance Finish Events for this task. The implicit Instance Finish
\r
249 * Events are thus disregarded for this task.
\r
250 ******************************************************************************/
\r
251 void vTraceTaskSkipDefaultInstanceFinishedEvents(void);
\r
253 /*******************************************************************************
\r
254 * vTraceTaskInstanceIsFinished
\r
256 * This defines an explicit Instance Finish Event for the current task. It tells
\r
257 * the recorder that the current instance of this task is finished at the next
\r
258 * kernel call of the task, e.g., a taskDelay or a queue receive. This function
\r
259 * should be called right before the api function call considered to be the end
\r
260 * of the task instamce, i.e., the Instance Finish Event.
\r
261 ******************************************************************************/
\r
262 void vTraceTaskInstanceIsFinished(void);
\r
264 /*******************************************************************************
\r
265 * vTraceGetTraceBuffer
\r
267 * Returns a pointer to the recorder data structure. Use this together with
\r
268 * uiTraceGetTraceBufferSize if you wish to implement an own store/upload
\r
269 * solution, e.g., in case a debugger connection is not available for uploading
\r
271 ******************************************************************************/
\r
272 void* vTraceGetTraceBuffer(void);
\r
274 /*******************************************************************************
\r
275 * uiTraceGetTraceBufferSize
\r
277 * Gets the size of the recorder data structure. For use together with
\r
278 * vTraceGetTraceBuffer if you wish to implement an own store/upload solution,
\r
279 * e.g., in case a debugger connection is not available for uploading the data.
\r
280 ******************************************************************************/
\r
281 uint32_t uiTraceGetTraceBufferSize(void);
\r
283 #if (INCLUDE_USER_EVENTS == 1)
\r
285 /*******************************************************************************
\r
288 * Creates user event labels for user event channels or for individual events.
\r
289 * User events can be used to log application events and data for display in
\r
290 * the visualization tool. A user event is identified by a label, i.e., a string,
\r
291 * which is stored in the recorder's symbol table.
\r
292 * When logging a user event, a numeric handle (reference) to this string is
\r
293 * used to identify the event. This is obtained by calling
\r
295 * xTraceOpenLabel()
\r
297 * whihc adds the string to the symbol table (if not already present)
\r
298 * and returns the corresponding handle.
\r
300 * This can be used in two ways:
\r
302 * 1. The handle is looked up every time, when storing the user event.
\r
305 * vTraceUserEvent(xTraceOpenLabel("MyUserEvent"));
\r
307 * 2. The label is registered just once, with the handle stored in an
\r
308 * application variable - much like using a file handle.
\r
311 * myEventHandle = xTraceOpenLabel("MyUserEvent");
\r
313 * vTraceUserEvent(myEventHandle);
\r
315 * The second option is faster since no lookup is required on each event, and
\r
316 * therefore recommended for user events that are frequently
\r
317 * executed and/or located in time-critical code. The lookup operation is
\r
318 * however fairly fast due to the design of the symbol table.
\r
319 ******************************************************************************/
\r
320 traceLabel xTraceOpenLabel(const char* label);
\r
322 /******************************************************************************
\r
325 * Basic user event (Standard and Professional Edition only)
\r
327 * Generates a User Event with a text label. The label is created/looked up
\r
328 * in the symbol table using xTraceOpenLabel.
\r
329 ******************************************************************************/
\r
330 void vTraceUserEvent(traceLabel eventLabel);
\r
332 /******************************************************************************
\r
335 * Advanced user events (Professional Edition only)
\r
337 * Generates User Event with formatted text and data, similar to a "printf".
\r
338 * It is very fast compared to a normal "printf" since this function only
\r
339 * stores the arguments. The actual formatting is done
\r
340 * on the host PC when the trace is displayed in the viewer tool.
\r
342 * User Event labels are created using xTraceOpenLabel.
\r
345 * traceLabel adc_uechannel = xTraceOpenLabel("ADC User Events");
\r
347 * vTracePrint(adc_uechannel,
\r
348 * "ADC channel %d: %lf volts",
\r
349 * ch, (double)adc_reading/(double)scale);
\r
351 * This can be combined into one line, if desired, but this is slower:
\r
353 * vTracePrint(xTraceOpenLabel("ADC User Events"),
\r
354 * "ADC channel %d: %lf volts",
\r
355 * ch, (double)adc_reading/(double)scale);
\r
357 * Calling xTraceOpenLabel multiple times will not create duplicate entries, but
\r
358 * it is of course faster to just do it once, and then keep the handle for later
\r
359 * use. If you don“t have any data arguments, only a text label/string, it is
\r
360 * better to use vTraceUserEvent - it is faster.
\r
362 * Format specifiers supported:
\r
363 * %d - 32 bit signed integer
\r
364 * %u - 32 bit unsigned integer
\r
365 * %f - 32 bit float
\r
366 * %s - string (is copied to the recorder symbol table)
\r
367 * %hd - 16 bit signed integer
\r
368 * %hu - 16 bit unsigned integer
\r
369 * %bd - 8 bit signed integer
\r
370 * %bu - 8 bit unsigned integer
\r
371 * %lf - double-precision float (Note! See below...)
\r
373 * Up to 15 data arguments are allowed, with a total size of maximum 32 byte.
\r
374 * In case this is exceeded, the user event is changed into an error message.
\r
376 * The data is stored in trace buffer, and is packed to allow storing multiple
\r
377 * smaller data entries in the same 4-byte record, e.g., four 8-bit values.
\r
378 * A string requires two bytes, as the symbol table is limited to 64K. Storing
\r
379 * a double (%lf) uses two records, so this is quite costly. Use float (%f)
\r
380 * unless the higher precision is really necessary.
\r
382 * Note that the double-precision float (%lf) assumes a 64 bit double
\r
383 * representation. This does not seem to be the case on e.g. PIC24F.
\r
384 * Before using a %lf argument on a 16-bit MCU, please verify that
\r
385 * "sizeof(double)" actually gives 8 as expected. If not, use %f instead.
\r
386 ******************************************************************************/
\r
387 void vTracePrintF(traceLabel eventLabel, const char* formatStr, ...);
\r
389 #if (USE_SEPARATE_USER_EVENT_BUFFER == 1)
\r
390 UserEventChannel xTraceRegisterChannelFormat(traceLabel channel, traceLabel formatStr);
\r
391 void vTraceChannelPrintF(UserEventChannel channel, ...);
\r
392 void vTraceChannelUserEvent(UserEventChannel channel);
\r
397 #define vTracePrintF(eventLabel, formatStr, ...);
\r
398 #define xTraceOpenLabel(label) 0
\r
399 #define vTraceUserEvent(eventLabel)
\r
405 /* Empty defines for user functions to avoid compiler errors if trace is not to be used */
\r
407 #define vTraceInitTraceData()
\r
408 #define uiTraceStart() (1) // Fake "success", if used when recorder is excluded from build
\r
409 #define vTraceStart()
\r
410 #define vTraceStop()
\r
411 #define vTraceClear()
\r
412 #define vTraceStartStatusMonitor()
\r
413 #define vTraceGetTraceBuffer() ((void*)0)
\r
414 #define uiTraceGetTraceBufferSize() 0
\r
415 #define xTraceOpenLabel(label) 0
\r
416 #define vTraceUserEvent(eventLabel)
\r
417 #define vTracePrintF(eventLabel,formatStr,...)
\r
418 #define vTraceExcludeTaskFromSchedulingTrace(name)
\r
420 #define vTraceTaskSkipDefaultInstanceFinishedEvents()
\r
421 #define vTraceSetISRProperties(handle, name, priority)
\r
422 #define vTraceStoreISRBegin(id)
\r
423 #define vTraceStoreISREnd()
\r