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Add FreeRTOS-Plus directory with new directory structure so it matches the FreeRTOS directory.
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Richard Barry
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528 changed files with 228252 additions and 0 deletions
208
FreeRTOS-Plus/Source/FreeRTOS-Plus-Trace/trcPort.c
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208
FreeRTOS-Plus/Source/FreeRTOS-Plus-Trace/trcPort.c
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/*******************************************************************************
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* FreeRTOS+Trace v2.3.0 Recorder Library
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* Percepio AB, www.percepio.com
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*
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* trcPort.c
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*
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* Contains all portability issues of the trace recorder library.
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* See also trcPort.h, where port-specific macros are defined.
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*
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* Terms of Use
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* This software is copyright Percepio AB. The recorder library is free for
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* use together with Percepio products. You may distribute the recorder library
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* in its original form, including modifications in trcPort.c and trcPort.h
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* given that these modification are clearly marked as your own modifications
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* and documented in the initial comment section of these source files.
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* This software is the intellectual property of Percepio AB and may not be
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* sold or in other ways commercially redistributed without explicit written
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* permission by Percepio AB.
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*
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* Disclaimer
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* The trace tool and recorder library is being delivered to you AS IS and
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* Percepio AB makes no warranty as to its use or performance. Percepio AB does
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* not and cannot warrant the performance or results you may obtain by using the
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* software or documentation. Percepio AB make no warranties, express or
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* implied, as to noninfringement of third party rights, merchantability, or
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* fitness for any particular purpose. In no event will Percepio AB, its
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* technology partners, or distributors be liable to you for any consequential,
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* incidental or special damages, including any lost profits or lost savings,
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* even if a representative of Percepio AB has been advised of the possibility
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* of such damages, or for any claim by any third party. Some jurisdictions do
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* not allow the exclusion or limitation of incidental, consequential or special
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* damages, or the exclusion of implied warranties or limitations on how long an
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* implied warranty may last, so the above limitations may not apply to you.
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*
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* OFFER FROM PERCEPIO:
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* For silicon companies and non-corporate FreeRTOS users (researchers, students
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* , hobbyists or early-phase startups) we have an attractive offer:
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* Provide a hardware timer port and get a FREE single-user licence for
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* FreeRTOS+Trace Professional Edition. Read more about this offer at
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* www.percepio.com or contact us directly at support@percepio.com.
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*
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* FreeRTOS+Trace is available as Free Edition and in two premium editions.
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* You may use the premium features during 30 days for evaluation.
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* Download FreeRTOS+Trace at http://www.percepio.com/products/downloads/
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*
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* Copyright Percepio AB, 2012.
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* www.percepio.com
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******************************************************************************/
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#include "trcUser.h"
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#if (configUSE_TRACE_FACILITY == 1)
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#if (INCLUDE_SAVE_TO_FILE == 1)
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static char* prvFileName = NULL;
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#endif
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/*******************************************************************************
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* uiTraceTickCount
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*
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* This variable is updated by the traceTASK_INCREMENT_TICK macro in the
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* FreeRTOS tick handler. This does not need to be modified when developing a
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* new timer port. It is prefered to keep any timer port changes in the HWTC
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* macro definitions, which typically give sufficient flexibility.
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******************************************************************************/
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uint32_t uiTraceTickCount = 0;
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/******************************************************************************
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* uiTracePortGetTimeStamp
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*
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* Returns the current time based on the HWTC macros which provide a hardware
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* isolation layer towards the hardware timer/counter.
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*
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* The HWTC macros and uiTracePortGetTimeStamp is the main porting issue
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* or the trace recorder library. Typically you should not need to change
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* the code of uiTracePortGetTimeStamp if using the HWTC macros.
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*
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* OFFER FROM PERCEPIO:
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* For silicon companies and non-corporate FreeRTOS users (researchers, students
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* , hobbyists or early-phase startups) we have an attractive offer:
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* Provide a hardware timer port and get a FREE single-user license for
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* FreeRTOS+Trace Professional Edition. Read more about this offer at
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* www.percepio.com or contact us directly at support@percepio.com.
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******************************************************************************/
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void uiTracePortGetTimeStamp(uint32_t *pTimestamp)
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{
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static uint32_t last_traceTickCount = 0;
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static uint32_t last_hwtc_count = 0;
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uint32_t traceTickCount = 0;
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uint32_t hwtc_count = 0;
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/* Retrieve HWTC_COUNT only once since the same value should be used all throughout this function. */
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#if (HWTC_COUNT_DIRECTION == DIRECTION_INCREMENTING)
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hwtc_count = HWTC_COUNT;
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#elif (HWTC_COUNT_DIRECTION == DIRECTION_DECREMENTING)
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hwtc_count = HWTC_PERIOD - HWTC_COUNT;
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#else
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Junk text to cause compiler error - HWTC_COUNT_DIRECTION is not set correctly!
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Should be DIRECTION_INCREMENTING or DIRECTION_DECREMENTING
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#endif
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if (last_traceTickCount - uiTraceTickCount - 1 < 0x80000000)
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{
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/* This means last_traceTickCount is higher than uiTraceTickCount,
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so we have previously compensated for a missed tick.
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Therefore we use the last stored value because that is more accurate. */
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traceTickCount = last_traceTickCount;
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}
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else
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{
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/* Business as usual */
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traceTickCount = uiTraceTickCount;
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}
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/* Check for overflow. May occur if the update of uiTraceTickCount has been
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delayed due to disabled interrupts. */
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if (traceTickCount == last_traceTickCount && hwtc_count < last_hwtc_count)
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{
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/* A trace tick has occurred but not been executed by the kernel, so we compensate manually. */
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traceTickCount++;
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}
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/* Check if the return address is OK, then we perform the calculation. */
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if (pTimestamp)
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{
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/* Get timestamp from trace ticks. Scale down the period to avoid unwanted overflows. */
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*pTimestamp = traceTickCount * (HWTC_PERIOD / HWTC_DIVISOR);
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/* Increase timestamp by (hwtc_count + "lost hardware ticks from scaling down period") / HWTC_DIVISOR. */
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*pTimestamp += (hwtc_count + traceTickCount * (HWTC_PERIOD % HWTC_DIVISOR)) / HWTC_DIVISOR;
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}
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/* Store the previous values. */
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last_traceTickCount = traceTickCount;
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last_hwtc_count = hwtc_count;
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}
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/*******************************************************************************
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* vTracePortEnd
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*
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* This function is called by the monitor when a recorder stop is detected.
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* This is used by the Win32 port to store the trace to a file. The file path is
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* set using vTracePortSetOutFile.
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******************************************************************************/
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void vTracePortEnd()
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{
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vTraceConsoleMessage("\n\r[FreeRTOS+Trace] Running vTracePortEnd.\n\r");
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#if (WIN32_PORT_SAVE_WHEN_STOPPED == 1)
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vTracePortSave();
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#endif
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#if (WIN32_PORT_EXIT_WHEN_STOPPED == 1)
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/* In the FreeRTOS/Win32 demo, this allows for killing the application
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when the recorder is stopped (e.g., when the buffer is full) */
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system("pause");
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exit(0);
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#endif
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}
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#if (INCLUDE_SAVE_TO_FILE == 1)
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/*******************************************************************************
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* vTracePortSetOutFile
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*
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* Sets the filename/path used in vTracePortSave.
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* This is set in a separate function, since the Win32 port calls vTracePortSave
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* in vTracePortEnd if WIN32_PORT_SAVE_WHEN_STOPPED is set.
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******************************************************************************/
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void vTracePortSetOutFile(char* path)
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{
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prvFileName = path;
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}
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/*******************************************************************************
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* vTracePortSave
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*
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* Saves the trace to a file on a local file system. The path is set in a
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* separate function, vTracePortSetOutFile, since the Win32 port calls
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* vTracePortSave in vTracePortEnd if WIN32_PORT_SAVE_WHEN_STOPPED is set.
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******************************************************************************/
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void vTracePortSave()
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{
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char buf[180];
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FILE* f;
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if (prvFileName == NULL)
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{
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prvFileName = "FreeRTOSPlusTrace.dump";
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sprintf(buf, "No filename specified, using default \"%s\".", prvFileName);
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vTraceConsoleMessage(buf);
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}
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fopen_s(&f, prvFileName, "wb");
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if (f)
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{
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fwrite(RecorderDataPtr, sizeof(RecorderDataType), 1, f);
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fclose(f);
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sprintf(buf, "\n\r[FreeRTOS+Trace] Saved in: %s\n\r", prvFileName);
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vTraceConsoleMessage(buf);
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}
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else
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{
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sprintf(buf, "\n\r[FreeRTOS+Trace] Failed to write to output file!\n\r");
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vTraceConsoleMessage(buf);
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}
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}
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#endif
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#endif
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