drivers/staging/epl/EplEventu.c

   1 /****************************************************************************
   2
   3   (c) SYSTEC electronic GmbH, D-07973 Greiz, August-Bebel-Str. 29
   4       www.systec-electronic.com
   5
   6   Project:      openPOWERLINK
   7
   8   Description:  source file for Epl-Userspace-Event-Modul
   9
  10   License:
  11
  12     Redistribution and use in source and binary forms, with or without
  13     modification, are permitted provided that the following conditions
  14     are met:
  15
  16     1. Redistributions of source code must retain the above copyright
  17        notice, this list of conditions and the following disclaimer.
  18
  19     2. Redistributions in binary form must reproduce the above copyright
  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
  24        contributors may be used to endorse or promote products derived
  25        from this software without prior written permission. For written
  26        permission, please contact info@systec-electronic.com.
  27
  28     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  29     "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  30     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  31     FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  32     COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  33     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  34     BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  35     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  36     CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  37     LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  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