drivers/staging/epl/EplEventu.c

   1 /****************************************************************************
   2
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   4       www.systec-electronic.com
   5
   6   Project:      openPOWERLINK
   7
   8   Description:  source file for Epl-Userspace-Event-Modul
   9
  10   License:
  11
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  20        notice, this list of conditions and the following disclaimer in the
  21        documentation and/or other materials provided with the distribution.
  22
  23     3. Neither the name of SYSTEC electronic GmbH nor the names of its
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  25        from this software without prior written permission. For written
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  28     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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  30     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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  38     ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  39     POSSIBILITY OF SUCH DAMAGE.
  40
  41     Severability Clause:
  42
  43         If a provision of this License is or becomes illegal, invalid or
  44         unenforceable in any jurisdiction, that shall not affect:
  45         1. the validity or enforceability in that jurisdiction of any other
  46            provision of this License; or
  47         2. the validity or enforceability in other jurisdictions of that or
  48            any other provision of this License.
  49
  50   -------------------------------------------------------------------------
  51
  52                 $RCSfile: EplEventu.c,v $
  53
  54                 $Author: D.Krueger $
  55
  56                 $Revision: 1.8 $  $Date: 2008/11/17 16:40:39 $
  57
  58                 $State: Exp $
  59
  60                 Build Environment:
  61                     GCC V3.4
  62
  63   -------------------------------------------------------------------------
  64
  65   Revision History:
  66
  67   2006/06/20 k.t.:   start of the implementation
  68
  69 ****************************************************************************/
  70
  71 #include "user/EplEventu.h"
  72 #include "user/EplNmtu.h"
  73 #include "user/EplNmtMnu.h"
  74 #include "user/EplSdoAsySequ.h"
  75 #include "user/EplDlluCal.h"
  76 #include "user/EplLedu.h"
  77 #include "Benchmark.h"
  78
  79 #ifdef EPL_NO_FIFO
  80 #include "kernel/EplEventk.h"
  81 #else
  82 #include "SharedBuff.h"
  83 #endif
  84
  85 /***************************************************************************/
  86 /*                                                                         */
  87 /*                                                                         */
  88 /*          G L O B A L   D E F I N I T I O N S                            */
  89 /*                                                                         */
  90 /*                                                                         */
  91 /***************************************************************************/
  92
  93 //---------------------------------------------------------------------------
  94 // const defines
  95 //---------------------------------------------------------------------------
  96
  97 // TracePoint support for realtime-debugging
  98 #ifdef _DBG_TRACE_POINTS_
  99 void TgtDbgSignalTracePoint(u8 bTracePointNumber_p);
 100 void TgtDbgPostTraceValue(u32 dwTraceValue_p);
 101 #define TGT_DBG_SIGNAL_TRACE_POINT(p)   TgtDbgSignalTracePoint(p)
 102 #define TGT_DBG_POST_TRACE_VALUE(v)     TgtDbgPostTraceValue(v)
 103 #else
 104 #define TGT_DBG_SIGNAL_TRACE_POINT(p)
 105 #define TGT_DBG_POST_TRACE_VALUE(v)
 106 #endif
 107
 108 //---------------------------------------------------------------------------
 109 // local types
 110 //---------------------------------------------------------------------------
 111
 112 typedef struct {
 113 #ifndef EPL_NO_FIFO
 114         tShbInstance m_pShbKernelToUserInstance;
 115         tShbInstance m_pShbUserToKernelInstance;
 116 #endif
 117         tEplProcessEventCb m_pfnApiProcessEventCb;
 118
 119 } tEplEventuInstance;
 120
 121 //---------------------------------------------------------------------------
 122 // modul globale vars
 123 //---------------------------------------------------------------------------
 124
 125 //#ifndef EPL_NO_FIFO
 126 static tEplEventuInstance EplEventuInstance_g;
 127 //#endif
 128
 129 //---------------------------------------------------------------------------
 130 // local function prototypes
 131 //---------------------------------------------------------------------------
 132
 133 #ifndef EPL_NO_FIFO
 134 // callback function for incomming events
 135 static void EplEventuRxSignalHandlerCb(tShbInstance pShbRxInstance_p,
 136                                        unsigned long ulDataSize_p);
 137 #endif
 138
 139 /***************************************************************************/
 140 /*                                                                         */
 141 /*                                                                         */
 142 /*          C L A S S  <Epl-User-Event>                                    */
 143 /*                                                                         */
 144 /*                                                                         */
 145 /***************************************************************************/
 146 //
 147 // Description:
 148 //
 149 //
 150 /***************************************************************************/
 151
 152 //=========================================================================//
 153 //                                                                         //
 154 //          P U B L I C   F U N C T I O N S                                //
 155 //                                                                         //
 156 //=========================================================================//
 157
 158 //---------------------------------------------------------------------------
 159 //
 160 // Function:    EplEventuInit
 161 //
 162 // Description: function initialize the first instance
 163 //
 164 //
 165 //
 166 // Parameters:  pfnApiProcessEventCb_p  = function pointer for API event callback
 167 //
 168 //
 169 // Returns:      tEpKernel  = errorcode
 170 //
 171 //
 172 // State:
 173 //
 174 //---------------------------------------------------------------------------
 175 tEplKernel EplEventuInit(tEplProcessEventCb pfnApiProcessEventCb_p)
 176 {
 177         tEplKernel Ret;
 178
 179         Ret = EplEventuAddInstance(pfnApiProcessEventCb_p);
 180
 181         return Ret;
 182
 183 }
 184
 185 //---------------------------------------------------------------------------
 186 //
 187 // Function:    EplEventuAddInstance
 188 //
 189 // Description: function add one more instance
 190 //
 191 //
 192 //
 193 // Parameters:  pfnApiProcessEventCb_p  = function pointer for API event callback
 194 //
 195 //
 196 // Returns:      tEpKernel  = errorcode
 197 //
 198 //
 199 // State:
 200 //
 201 //---------------------------------------------------------------------------
 202 tEplKernel EplEventuAddInstance(tEplProcessEventCb pfnApiProcessEventCb_p)
 203 {
 204         tEplKernel Ret;
 205 #ifndef EPL_NO_FIFO
 206         tShbError ShbError;
 207         unsigned int fShbNewCreated;
 208 #endif
 209
 210         Ret = kEplSuccessful;
 211
 212         // init instance variables
 213         EplEventuInstance_g.m_pfnApiProcessEventCb = pfnApiProcessEventCb_p;
 214
 215 #ifndef EPL_NO_FIFO
 216         // init shared loop buffer
 217         // kernel -> user
 218         ShbError = ShbCirAllocBuffer(EPL_EVENT_SIZE_SHB_KERNEL_TO_USER,
 219                                      EPL_EVENT_NAME_SHB_KERNEL_TO_USER,
 220                                      &EplEventuInstance_g.
 221                                      m_pShbKernelToUserInstance,
 222                                      &fShbNewCreated);
 223         if (ShbError != kShbOk) {
 224                 EPL_DBGLVL_EVENTK_TRACE1
 225                     ("EplEventuAddInstance(): ShbCirAllocBuffer(K2U) -> 0x%X\n",
 226                      ShbError);
 227                 Ret = kEplNoResource;
 228                 goto Exit;
 229         }
 230
 231         // user -> kernel
 232         ShbError = ShbCirAllocBuffer(EPL_EVENT_SIZE_SHB_USER_TO_KERNEL,
 233                                      EPL_EVENT_NAME_SHB_USER_TO_KERNEL,
 234                                      &EplEventuInstance_g.
 235                                      m_pShbUserToKernelInstance,
 236                                      &fShbNewCreated);
 237         if (ShbError != kShbOk) {
 238                 EPL_DBGLVL_EVENTK_TRACE1
 239                     ("EplEventuAddInstance(): ShbCirAllocBuffer(U2K) -> 0x%X\n",
 240                      ShbError);
 241                 Ret = kEplNoResource;
 242                 goto Exit;
 243         }
 244         // register eventhandler
 245         ShbError =
 246             ShbCirSetSignalHandlerNewData(EplEventuInstance_g.
 247                                           m_pShbKernelToUserInstance,
 248                                           EplEventuRxSignalHandlerCb,
 249                                           kShbPriorityNormal);
 250         if (ShbError != kShbOk) {
 251                 EPL_DBGLVL_EVENTK_TRACE1
 252                     ("EplEventuAddInstance(): ShbCirSetSignalHandlerNewData(K2U) -> 0x%X\n",
 253                      ShbError);
 254                 Ret = kEplNoResource;
 255                 goto Exit;
 256         }
 257
 258       Exit:
 259 #endif
 260
 261         return Ret;
 262
 263 }
 264
 265 //---------------------------------------------------------------------------
 266 //
 267 // Function:    EplEventuDelInstance
 268 //
 269 // Description: function delete instance an free the bufferstructure
 270 //
 271 //
 272 //
 273 // Parameters:
 274 //
 275 //
 276 // Returns:      tEpKernel  = errorcode
 277 //
 278 //
 279 // State:
 280 //
 281 //---------------------------------------------------------------------------
 282 tEplKernel EplEventuDelInstance(void)
 283 {
 284         tEplKernel Ret;
 285 #ifndef EPL_NO_FIFO
 286         tShbError ShbError;
 287 #endif
 288
 289         Ret = kEplSuccessful;
 290
 291 #ifndef EPL_NO_FIFO
 292         // set eventhandler to NULL
 293         ShbError =
 294             ShbCirSetSignalHandlerNewData(EplEventuInstance_g.
 295                                           m_pShbKernelToUserInstance, NULL,
 296                                           kShbPriorityNormal);
 297         if (ShbError != kShbOk) {
 298                 EPL_DBGLVL_EVENTK_TRACE1
 299                     ("EplEventuDelInstance(): ShbCirSetSignalHandlerNewData(K2U) -> 0x%X\n",
 300                      ShbError);
 301                 Ret = kEplNoResource;
 302         }
 303         // free buffer User -> Kernel
 304         ShbError =
 305             ShbCirReleaseBuffer(EplEventuInstance_g.m_pShbUserToKernelInstance);
 306         if ((ShbError != kShbOk) && (ShbError != kShbMemUsedByOtherProcs)) {
 307                 EPL_DBGLVL_EVENTK_TRACE1
 308                     ("EplEventuDelInstance(): ShbCirReleaseBuffer(U2K) -> 0x%X\n",
 309                      ShbError);
 310                 Ret = kEplNoResource;
 311         } else {
 312                 EplEventuInstance_g.m_pShbUserToKernelInstance = NULL;
 313         }
 314
 315         // free buffer  Kernel -> User
 316         ShbError =
 317             ShbCirReleaseBuffer(EplEventuInstance_g.m_pShbKernelToUserInstance);
 318         if ((ShbError != kShbOk) && (ShbError != kShbMemUsedByOtherProcs)) {
 319                 EPL_DBGLVL_EVENTK_TRACE1
 320                     ("EplEventuDelInstance(): ShbCirReleaseBuffer(K2U) -> 0x%X\n",
 321                      ShbError);
 322                 Ret = kEplNoResource;
 323         } else {
 324                 EplEventuInstance_g.m_pShbKernelToUserInstance = NULL;
 325         }
 326
 327 #endif
 328
 329         return Ret;
 330
 331 }
 332
 333 //---------------------------------------------------------------------------
 334 //
 335 // Function:    EplEventuProcess
 336 //
 337 // Description: Kernelthread that dispatches events in kernelspace
 338 //
 339 //
 340 //
 341 // Parameters:  pEvent_p = pointer to event-structur from buffer
 342 //
 343 //
 344 // Returns:      tEpKernel  = errorcode
 345 //
 346 //
 347 // State:
 348 //
 349 //---------------------------------------------------------------------------
 350 tEplKernel EplEventuProcess(tEplEvent *pEvent_p)
 351 {
 352         tEplKernel Ret;
 353         tEplEventSource EventSource;
 354
 355         Ret = kEplSuccessful;
 356
 357         // check m_EventSink
 358         switch (pEvent_p->m_EventSink) {
 359                 // NMT-User-Module
 360         case kEplEventSinkNmtu:
 361                 {
 362 #if (((EPL_MODULE_INTEGRATION) & (EPL_MODULE_NMTU)) != 0)
 363                         Ret = EplNmtuProcessEvent(pEvent_p);
 364                         if ((Ret != kEplSuccessful) && (Ret != kEplShutdown)) {
 365                                 EventSource = kEplEventSourceNmtu;
 366
 367                                 // Error event for API layer
 368                                 EplEventuPostError(kEplEventSourceEventu,
 369                                                    Ret,
 370                                                    sizeof(EventSource),
 371                                                    &EventSource);
 372                         }
 373 #endif
 374                         break;
 375                 }
 376
 377 #if(((EPL_MODULE_INTEGRATION) & (EPL_MODULE_NMT_MN)) != 0)
 378                 // NMT-MN-User-Module
 379         case kEplEventSinkNmtMnu:
 380                 {
 381                         Ret = EplNmtMnuProcessEvent(pEvent_p);
 382                         if ((Ret != kEplSuccessful) && (Ret != kEplShutdown)) {
 383                                 EventSource = kEplEventSourceNmtMnu;
 384
 385                                 // Error event for API layer
 386                                 EplEventuPostError(kEplEventSourceEventu,
 387                                                    Ret,
 388                                                    sizeof(EventSource),
 389                                                    &EventSource);
 390                         }
 391                         break;
 392                 }
 393 #endif
 394
 395 #if ((((EPL_MODULE_INTEGRATION) & (EPL_MODULE_SDOC)) != 0)   \
 396      || (((EPL_MODULE_INTEGRATION) & (EPL_MODULE_SDOS)) != 0))
 397                 // events for asynchronus SDO Sequence Layer
 398         case kEplEventSinkSdoAsySeq:
 399                 {
 400                         Ret = EplSdoAsySeqProcessEvent(pEvent_p);
 401                         if ((Ret != kEplSuccessful) && (Ret != kEplShutdown)) {
 402                                 EventSource = kEplEventSourceSdoAsySeq;
 403
 404                                 // Error event for API layer
 405                                 EplEventuPostError(kEplEventSourceEventu,
 406                                                    Ret,
 407                                                    sizeof(EventSource),
 408                                                    &EventSource);
 409                         }
 410                         break;
 411                 }
 412 #endif
 413
 414                 // LED user part module
 415         case kEplEventSinkLedu:
 416                 {
 417 #if (((EPL_MODULE_INTEGRATION) & (EPL_MODULE_LEDU)) != 0)
 418                         Ret = EplLeduProcessEvent(pEvent_p);
 419                         if ((Ret != kEplSuccessful) && (Ret != kEplShutdown)) {
 420                                 EventSource = kEplEventSourceLedu;
 421
 422                                 // Error event for API layer
 423                                 EplEventuPostError(kEplEventSourceEventu,
 424                                                    Ret,
 425                                                    sizeof(EventSource),
 426                                                    &EventSource);
 427                         }
 428 #endif
 429                         break;
 430                 }
 431
 432                 // event for EPL api
 433         case kEplEventSinkApi:
 434                 {
 435                         if (EplEventuInstance_g.m_pfnApiProcessEventCb != NULL) {
 436                                 Ret =
 437                                     EplEventuInstance_g.
 438                                     m_pfnApiProcessEventCb(pEvent_p);
 439                                 if ((Ret != kEplSuccessful)
 440                                     && (Ret != kEplShutdown)) {
 441                                         EventSource = kEplEventSourceEplApi;
 442
 443                                         // Error event for API layer
 444                                         EplEventuPostError
 445                                             (kEplEventSourceEventu, Ret,
 446                                              sizeof(EventSource), &EventSource);
 447                                 }
 448                         }
 449                         break;
 450
 451                 }
 452
 453         case kEplEventSinkDlluCal:
 454                 {
 455                         Ret = EplDlluCalProcess(pEvent_p);
 456                         if ((Ret != kEplSuccessful) && (Ret != kEplShutdown)) {
 457                                 EventSource = kEplEventSourceDllu;
 458
 459                                 // Error event for API layer
 460                                 EplEventuPostError(kEplEventSourceEventu,
 461                                                    Ret,
 462                                                    sizeof(EventSource),
 463                                                    &EventSource);
 464                         }
 465                         break;
 466
 467                 }
 468
 469         case kEplEventSinkErru:
 470                 {
 471                         /*
 472                            Ret = EplErruProcess(pEvent_p);
 473                            if ((Ret != kEplSuccessful) && (Ret != kEplShutdown))
 474                            {
 475                            EventSource = kEplEventSourceErru;
 476
 477                            // Error event for API layer
 478                            EplEventuPostError(kEplEventSourceEventu,
 479                            Ret,
 480                            sizeof(EventSource),
 481                            &EventSource);
 482                            }
 483                          */
 484                         break;
 485
 486                 }
 487
 488                 // unknown sink
 489         default:
 490                 {
 491                         Ret = kEplEventUnknownSink;
 492                 }
 493
 494         }                       // end of switch(pEvent_p->m_EventSink)
 495
 496         return Ret;
 497
 498 }
 499
 500 //---------------------------------------------------------------------------
 501 //
 502 // Function:    EplEventuPost
 503 //
 504 // Description: post events from userspace
 505 //
 506 //
 507 //
 508 // Parameters:  pEvent_p = pointer to event-structur from buffer
 509 //
 510 //
 511 // Returns:      tEpKernel  = errorcode
 512 //
 513 //
 514 // State:
 515 //
 516 //---------------------------------------------------------------------------
 517 tEplKernel EplEventuPost(tEplEvent *pEvent_p)
 518 {
 519         tEplKernel Ret;
 520 #ifndef EPL_NO_FIFO
 521         tShbError ShbError;
 522         tShbCirChunk ShbCirChunk;
 523         unsigned long ulDataSize;
 524         unsigned int fBufferCompleted;
 525 #endif
 526
 527         Ret = kEplSuccessful;
 528
 529 #ifndef EPL_NO_FIFO
 530         // 2006/08/03 d.k.: Event and argument are posted as separate chunks to the event queue.
 531         ulDataSize =
 532             sizeof(tEplEvent) +
 533             ((pEvent_p->m_pArg != NULL) ? pEvent_p->m_uiSize : 0);
 534 #endif
 535
 536         // decide in which buffer the event have to write
 537         switch (pEvent_p->m_EventSink) {
 538                 // kernelspace modules
 539         case kEplEventSinkSync:
 540         case kEplEventSinkNmtk:
 541         case kEplEventSinkDllk:
 542         case kEplEventSinkDllkCal:
 543         case kEplEventSinkPdok:
 544         case kEplEventSinkErrk:
 545                 {
 546 #ifndef EPL_NO_FIFO
 547                         // post message
 548                         ShbError =
 549                             ShbCirAllocDataBlock(EplEventuInstance_g.
 550                                                  m_pShbUserToKernelInstance,
 551                                                  &ShbCirChunk, ulDataSize);
 552                         if (ShbError != kShbOk) {
 553                                 EPL_DBGLVL_EVENTK_TRACE1
 554                                     ("EplEventuPost(): ShbCirAllocDataBlock(U2K) -> 0x%X\n",
 555                                      ShbError);
 556                                 Ret = kEplEventPostError;
 557                                 goto Exit;
 558                         }
 559                         ShbError =
 560                             ShbCirWriteDataChunk(EplEventuInstance_g.
 561                                                  m_pShbUserToKernelInstance,
 562                                                  &ShbCirChunk, pEvent_p,
 563                                                  sizeof(tEplEvent),
 564                                                  &fBufferCompleted);
 565                         if (ShbError != kShbOk) {
 566                                 EPL_DBGLVL_EVENTK_TRACE1
 567                                     ("EplEventuPost(): ShbCirWriteDataChunk(U2K) -> 0x%X\n",
 568                                      ShbError);
 569                                 Ret = kEplEventPostError;
 570                                 goto Exit;
 571                         }
 572                         if (fBufferCompleted == FALSE) {
 573                                 ShbError =
 574                                     ShbCirWriteDataChunk(EplEventuInstance_g.
 575                                                          m_pShbUserToKernelInstance,
 576                                                          &ShbCirChunk,
 577                                                          pEvent_p->m_pArg,
 578                                                          (unsigned long)
 579                                                          pEvent_p->m_uiSize,
 580                                                          &fBufferCompleted);
 581                                 if ((ShbError != kShbOk)
 582                                     || (fBufferCompleted == FALSE)) {
 583                                         EPL_DBGLVL_EVENTK_TRACE1
 584                                             ("EplEventuPost(): ShbCirWriteDataChunk2(U2K) -> 0x%X\n",
 585                                              ShbError);
 586                                         Ret = kEplEventPostError;
 587                                         goto Exit;
 588                                 }
 589                         }
 590 #else
 591                         Ret = EplEventkProcess(pEvent_p);
 592 #endif
 593
 594                         break;
 595                 }
 596
 597                 // userspace modules
 598         case kEplEventSinkNmtMnu:
 599         case kEplEventSinkNmtu:
 600         case kEplEventSinkSdoAsySeq:
 601         case kEplEventSinkApi:
 602         case kEplEventSinkDlluCal:
 603         case kEplEventSinkErru:
 604         case kEplEventSinkLedu:
 605                 {
 606 #ifndef EPL_NO_FIFO
 607                         // post message
 608                         ShbError =
 609                             ShbCirAllocDataBlock(EplEventuInstance_g.
 610                                                  m_pShbKernelToUserInstance,
 611                                                  &ShbCirChunk, ulDataSize);
 612                         if (ShbError != kShbOk) {
 613                                 EPL_DBGLVL_EVENTK_TRACE1
 614                                     ("EplEventuPost(): ShbCirAllocDataBlock(K2U) -> 0x%X\n",
 615                                      ShbError);
 616                                 Ret = kEplEventPostError;
 617                                 goto Exit;
 618                         }
 619                         ShbError =
 620                             ShbCirWriteDataChunk(EplEventuInstance_g.
 621                                                  m_pShbKernelToUserInstance,
 622                                                  &ShbCirChunk, pEvent_p,
 623                                                  sizeof(tEplEvent),
 624                                                  &fBufferCompleted);
 625                         if (ShbError != kShbOk) {
 626                                 EPL_DBGLVL_EVENTK_TRACE1
 627                                     ("EplEventuPost(): ShbCirWriteDataChunk(K2U) -> 0x%X\n",
 628                                      ShbError);
 629                                 Ret = kEplEventPostError;
 630                                 goto Exit;
 631                         }
 632                         if (fBufferCompleted == FALSE) {
 633                                 ShbError =
 634                                     ShbCirWriteDataChunk(EplEventuInstance_g.
 635                                                          m_pShbKernelToUserInstance,
 636                                                          &ShbCirChunk,
 637                                                          pEvent_p->m_pArg,
 638                                                          (unsigned long)
 639                                                          pEvent_p->m_uiSize,
 640                                                          &fBufferCompleted);
 641                                 if ((ShbError != kShbOk)
 642                                     || (fBufferCompleted == FALSE)) {
 643                                         EPL_DBGLVL_EVENTK_TRACE1
 644                                             ("EplEventuPost(): ShbCirWriteDataChunk2(K2U) -> 0x%X\n",
 645                                              ShbError);
 646                                         Ret = kEplEventPostError;
 647                                         goto Exit;
 648                                 }
 649                         }
 650 #else
 651                         Ret = EplEventuProcess(pEvent_p);
 652 #endif
 653
 654                         break;
 655                 }
 656
 657         default:
 658                 {
 659                         Ret = kEplEventUnknownSink;
 660                 }
 661
 662         }                       // end of switch(pEvent_p->m_EventSink)
 663
 664 #ifndef EPL_NO_FIFO
 665       Exit:
 666 #endif
 667         return Ret;
 668
 669 }
 670
 671 //---------------------------------------------------------------------------
 672 //
 673 // Function:    EplEventuPostError
 674 //
 675 // Description: post errorevent from userspace
 676 //
 677 //
 678 //
 679 // Parameters:  EventSource_p   = source-module of the errorevent
 680 //              EplError_p     = code of occured error
 681 //              uiArgSize_p     = size of the argument
 682 //              pArg_p          = pointer to the argument
 683 //
 684 //
 685 // Returns:      tEpKernel  = errorcode
 686 //
 687 //
 688 // State:
 689 //
 690 //---------------------------------------------------------------------------
 691 tEplKernel EplEventuPostError(tEplEventSource EventSource_p,
 692                               tEplKernel EplError_p,
 693                               unsigned int uiArgSize_p, void *pArg_p)
 694 {
 695         tEplKernel Ret;
 696         u8 abBuffer[EPL_MAX_EVENT_ARG_SIZE];
 697         tEplEventError *pEventError = (tEplEventError *) abBuffer;
 698         tEplEvent EplEvent;
 699
 700         Ret = kEplSuccessful;
 701
 702         // create argument
 703         pEventError->m_EventSource = EventSource_p;
 704         pEventError->m_EplError = EplError_p;
 705         EPL_MEMCPY(&pEventError->m_Arg, pArg_p, uiArgSize_p);
 706
 707         // create event
 708         EplEvent.m_EventType = kEplEventTypeError;
 709         EplEvent.m_EventSink = kEplEventSinkApi;
 710         EPL_MEMSET(&EplEvent.m_NetTime, 0x00, sizeof(EplEvent.m_NetTime));
 711         EplEvent.m_uiSize =
 712             (sizeof(EventSource_p) + sizeof(EplError_p) + uiArgSize_p);
 713         EplEvent.m_pArg = &abBuffer[0];
 714
 715         // post errorevent
 716         Ret = EplEventuPost(&EplEvent);
 717
 718         return Ret;
 719 }
 720
 721 //=========================================================================//
 722 //                                                                         //
 723 //          P R I V A T E   F U N C T I O N S                              //
 724 //                                                                         //
 725 //=========================================================================//
 726
 727 //---------------------------------------------------------------------------
 728 //
 729 // Function:    EplEventuRxSignalHandlerCb()
 730 //
 731 // Description: Callback-function for evets from kernelspace
 732 //
 733 //
 734 //
 735 // Parameters:  pShbRxInstance_p    = Instance-pointer for buffer
 736 //              ulDataSize_p        = size of data
 737 //
 738 //
 739 // Returns: void
 740 //
 741 //
 742 // State:
 743 //
 744 //---------------------------------------------------------------------------
 745 #ifndef EPL_NO_FIFO
 746 static void EplEventuRxSignalHandlerCb(tShbInstance pShbRxInstance_p,
 747                                        unsigned long ulDataSize_p)
 748 {
 749         tEplEvent *pEplEvent;
 750         tShbError ShbError;
 751 //unsigned long   ulBlockCount;
 752 //unsigned long   ulDataSize;
 753         u8 abDataBuffer[sizeof(tEplEvent) + EPL_MAX_EVENT_ARG_SIZE];
 754         // d.k.: abDataBuffer contains the complete tEplEvent structure
 755         //       and behind this the argument
 756
 757         TGT_DBG_SIGNAL_TRACE_POINT(21);
 758
 759 // d.k. not needed because it is already done in SharedBuff
 760 /*    do
 761     {
 762         BENCHMARK_MOD_28_SET(1);    // 4 µs until reset
 763         // get messagesize
 764         ShbError = ShbCirGetReadDataSize (pShbRxInstance_p, &ulDataSize);
 765         if(ShbError != kShbOk)
 766         {
 767             // error goto exit
 768             goto Exit;
 769         }
 770
 771         BENCHMARK_MOD_28_RESET(1);  // 14 µs until set
 772 */
 773         // copy data from event queue
 774         ShbError = ShbCirReadDataBlock(pShbRxInstance_p,
 775                                        &abDataBuffer[0],
 776                                        sizeof(abDataBuffer), &ulDataSize_p);
 777         if (ShbError != kShbOk) {
 778                 // error goto exit
 779                 goto Exit;
 780         }
 781         // resolve the pointer to the event structure
 782         pEplEvent = (tEplEvent *) abDataBuffer;
 783         // set Datasize
 784         pEplEvent->m_uiSize = (ulDataSize_p - sizeof(tEplEvent));
 785         if (pEplEvent->m_uiSize > 0) {
 786                 // set pointer to argument
 787                 pEplEvent->m_pArg = &abDataBuffer[sizeof(tEplEvent)];
 788         } else {
 789                 //set pointer to NULL
 790                 pEplEvent->m_pArg = NULL;
 791         }
 792
 793         BENCHMARK_MOD_28_SET(1);
 794         // call processfunction
 795         EplEventuProcess(pEplEvent);
 796
 797         BENCHMARK_MOD_28_RESET(1);
 798         // read number of left messages to process
 799 // d.k. not needed because it is already done in SharedBuff
 800 /*        ShbError = ShbCirGetReadBlockCount (pShbRxInstance_p, &ulBlockCount);
 801         if (ShbError != kShbOk)
 802         {
 803             // error goto exit
 804             goto Exit;
 805         }
 806     } while (ulBlockCount > 0);
 807 */
 808       Exit:
 809         return;
 810 }
 811 #endif
 812
 813 // EOF