git.oblomov.eu Git - linux-2.6/blob - drivers/staging/epl/EplDlluCal.c

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   6   Project:      openPOWERLINK
   7
   8   Description:  source file for DLL Communication Abstraction Layer module in EPL user part
   9
  10   License:
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  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
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  48            any other provision of this License.
  49
  50   -------------------------------------------------------------------------
  51
  52                 $RCSfile: EplDlluCal.c,v $
  53
  54                 $Author: D.Krueger $
  55
  56                 $Revision: 1.7 $  $Date: 2008/10/17 15:32:32 $
  57
  58                 $State: Exp $
  59
  60                 Build Environment:
  61                     GCC V3.4
  62
  63   -------------------------------------------------------------------------
  64
  65   Revision History:
  66
  67   2006/06/20 d.k.:   start of the implementation, version 1.00
  68
  69 ****************************************************************************/
  70
  71 #include "user/EplDlluCal.h"
  72 #include "user/EplEventu.h"
  73
  74 #include "EplDllCal.h"
  75
  76 // include only if direct call between user- and kernelspace is enabled
  77 #if(((EPL_MODULE_INTEGRATION) & (EPL_MODULE_DLLK)) != 0)
  78 #include "kernel/EplDllkCal.h"
  79 #endif
  80
  81 #if(((EPL_MODULE_INTEGRATION) & (EPL_MODULE_DLLU)) != 0)
  82
  83 /***************************************************************************/
  84 /*                                                                         */
  85 /*                                                                         */
  86 /*          G L O B A L   D E F I N I T I O N S                            */
  87 /*                                                                         */
  88 /*                                                                         */
  89 /***************************************************************************/
  90
  91 //---------------------------------------------------------------------------
  92 // const defines
  93 //---------------------------------------------------------------------------
  94
  95 //---------------------------------------------------------------------------
  96 // local types
  97 //---------------------------------------------------------------------------
  98
  99 //---------------------------------------------------------------------------
 100 // modul globale vars
 101 //---------------------------------------------------------------------------
 102
 103 //---------------------------------------------------------------------------
 104 // local function prototypes
 105 //---------------------------------------------------------------------------
 106
 107 /***************************************************************************/
 108 /*                                                                         */
 109 /*                                                                         */
 110 /*          C L A S S  EplDlluCal                                          */
 111 /*                                                                         */
 112 /*                                                                         */
 113 /***************************************************************************/
 114 //
 115 // Description:
 116 //
 117 //
 118 /***************************************************************************/
 119
 120 //=========================================================================//
 121 //                                                                         //
 122 //          P R I V A T E   D E F I N I T I O N S                          //
 123 //                                                                         //
 124 //=========================================================================//
 125
 126 //---------------------------------------------------------------------------
 127 // const defines
 128 //---------------------------------------------------------------------------
 129
 130 //---------------------------------------------------------------------------
 131 // local types
 132 //---------------------------------------------------------------------------
 133
 134 typedef struct {
 135         tEplDlluCbAsnd m_apfnDlluCbAsnd[EPL_DLL_MAX_ASND_SERVICE_ID];
 136
 137 } tEplDlluCalInstance;
 138
 139 //---------------------------------------------------------------------------
 140 // local vars
 141 //---------------------------------------------------------------------------
 142
 143 // if no dynamic memory allocation shall be used
 144 // define structures statically
 145 static tEplDlluCalInstance EplDlluCalInstance_g;
 146
 147 //---------------------------------------------------------------------------
 148 // local function prototypes
 149 //---------------------------------------------------------------------------
 150
 151 static tEplKernel EplDlluCalSetAsndServiceIdFilter(tEplDllAsndServiceId
 152                                                    ServiceId_p,
 153                                                    tEplDllAsndFilter Filter_p);
 154
 155 //=========================================================================//
 156 //                                                                         //
 157 //          P U B L I C   F U N C T I O N S                                //
 158 //                                                                         //
 159 //=========================================================================//
 160
 161 //---------------------------------------------------------------------------
 162 //
 163 // Function:    EplDlluCalAddInstance()
 164 //
 165 // Description: add and initialize new instance of DLL CAL module
 166 //
 167 // Parameters:  none
 168 //
 169 // Returns:     tEplKernel              = error code
 170 //
 171 //
 172 // State:
 173 //
 174 //---------------------------------------------------------------------------
 175
 176 tEplKernel EplDlluCalAddInstance(void)
 177 {
 178         tEplKernel Ret = kEplSuccessful;
 179
 180         // reset instance structure
 181         EPL_MEMSET(&EplDlluCalInstance_g, 0, sizeof(EplDlluCalInstance_g));
 182
 183         return Ret;
 184 }
 185
 186 //---------------------------------------------------------------------------
 187 //
 188 // Function:    EplDlluCalDelInstance()
 189 //
 190 // Description: deletes an instance of DLL CAL module
 191 //
 192 // Parameters:  none
 193 //
 194 // Returns:     tEplKernel              = error code
 195 //
 196 //
 197 // State:
 198 //
 199 //---------------------------------------------------------------------------
 200
 201 tEplKernel EplDlluCalDelInstance(void)
 202 {
 203         tEplKernel Ret = kEplSuccessful;
 204
 205         // reset instance structure
 206         EPL_MEMSET(&EplDlluCalInstance_g, 0, sizeof(EplDlluCalInstance_g));
 207
 208         return Ret;
 209 }
 210
 211 //---------------------------------------------------------------------------
 212 //
 213 // Function:    EplDlluCalProcess
 214 //
 215 // Description: process the passed asynch frame
 216 //
 217 // Parameters:  pEvent_p                = event containing frame to be processed
 218 //
 219 // Returns:     tEplKernel              = error code
 220 //
 221 //
 222 // State:
 223 //
 224 //---------------------------------------------------------------------------
 225
 226 tEplKernel EplDlluCalProcess(tEplEvent * pEvent_p)
 227 {
 228         tEplKernel Ret = kEplSuccessful;
 229         tEplMsgType MsgType;
 230         unsigned int uiAsndServiceId;
 231         tEplFrameInfo FrameInfo;
 232
 233         if (pEvent_p->m_EventType == kEplEventTypeAsndRx) {
 234                 FrameInfo.m_pFrame = (tEplFrame *) pEvent_p->m_pArg;
 235                 FrameInfo.m_uiFrameSize = pEvent_p->m_uiSize;
 236                 // extract NetTime
 237                 FrameInfo.m_NetTime = pEvent_p->m_NetTime;
 238
 239                 MsgType =
 240                     (tEplMsgType) AmiGetByteFromLe(&FrameInfo.m_pFrame->
 241                                                    m_le_bMessageType);
 242                 if (MsgType != kEplMsgTypeAsnd) {
 243                         Ret = kEplInvalidOperation;
 244                         goto Exit;
 245                 }
 246
 247                 uiAsndServiceId =
 248                     (unsigned int)AmiGetByteFromLe(&FrameInfo.m_pFrame->m_Data.
 249                                                    m_Asnd.m_le_bServiceId);
 250                 if (uiAsndServiceId < EPL_DLL_MAX_ASND_SERVICE_ID) {    // ASnd service ID is valid
 251                         if (EplDlluCalInstance_g.m_apfnDlluCbAsnd[uiAsndServiceId] != NULL) {   // handler was registered
 252                                 Ret =
 253                                     EplDlluCalInstance_g.
 254                                     m_apfnDlluCbAsnd[uiAsndServiceId]
 255                                     (&FrameInfo);
 256                         }
 257                 }
 258         }
 259
 260       Exit:
 261         return Ret;
 262 }
 263
 264 //---------------------------------------------------------------------------
 265 //
 266 // Function:    EplDlluCalRegAsndService()
 267 //
 268 // Description: registers the specified handler for the specified
 269 //              AsndServiceId with the specified node ID filter.
 270 //
 271 // Parameters:  ServiceId_p             = ASnd Service ID
 272 //              pfnDlluCbAsnd_p         = callback function
 273 //              Filter_p                = node ID filter
 274 //
 275 // Returns:     tEplKernel              = error code
 276 //
 277 //
 278 // State:
 279 //
 280 //---------------------------------------------------------------------------
 281
 282 tEplKernel EplDlluCalRegAsndService(tEplDllAsndServiceId ServiceId_p,
 283                                     tEplDlluCbAsnd pfnDlluCbAsnd_p,
 284                                     tEplDllAsndFilter Filter_p)
 285 {
 286         tEplKernel Ret = kEplSuccessful;
 287
 288         if (ServiceId_p < tabentries(EplDlluCalInstance_g.m_apfnDlluCbAsnd)) {
 289                 // memorize function pointer
 290                 EplDlluCalInstance_g.m_apfnDlluCbAsnd[ServiceId_p] =
 291                     pfnDlluCbAsnd_p;
 292
 293                 if (pfnDlluCbAsnd_p == NULL) {  // close filter
 294                         Filter_p = kEplDllAsndFilterNone;
 295                 }
 296                 // set filter in DLL module in kernel part
 297                 Ret = EplDlluCalSetAsndServiceIdFilter(ServiceId_p, Filter_p);
 298
 299         }
 300
 301         return Ret;
 302 }
 303
 304 //---------------------------------------------------------------------------
 305 //
 306 // Function:    EplDlluCalAsyncSend()
 307 //
 308 // Description: sends the frame with the specified priority.
 309 //
 310 // Parameters:  pFrameInfo_p            = frame
 311 //                                        m_uiFrameSize does not include the
 312 //                                        ethernet header (14 bytes)
 313 //              Priority_p              = priority
 314 //
 315 // Returns:     tEplKernel              = error code
 316 //
 317 //
 318 // State:
 319 //
 320 //---------------------------------------------------------------------------
 321
 322 tEplKernel EplDlluCalAsyncSend(tEplFrameInfo * pFrameInfo_p,
 323                                tEplDllAsyncReqPriority Priority_p)
 324 {
 325         tEplKernel Ret = kEplSuccessful;
 326
 327 #if(((EPL_MODULE_INTEGRATION) & (EPL_MODULE_DLLK)) != 0)
 328         pFrameInfo_p->m_uiFrameSize += 14;      // add size of ethernet header
 329         Ret = EplDllkCalAsyncSend(pFrameInfo_p, Priority_p);
 330 #else
 331         Ret = kEplSuccessful;
 332 #endif
 333
 334         return Ret;
 335 }
 336
 337 #if(((EPL_MODULE_INTEGRATION) & (EPL_MODULE_NMT_MN)) != 0)
 338
 339 //---------------------------------------------------------------------------
 340 //
 341 // Function:    EplDlluCalIssueRequest()
 342 //
 343 // Description: issues a StatusRequest or a IdentRequest to the specified node.
 344 //
 345 // Parameters:  Service_p               = request service ID
 346 //              uiNodeId_p              = node ID
 347 //              bSoaFlag1_p             = flag1 for this node (transmit in SoA and PReq)
 348 //                                        If 0xFF this flag is ignored.
 349 //
 350 // Returns:     tEplKernel              = error code
 351 //
 352 //
 353 // State:
 354 //
 355 //---------------------------------------------------------------------------
 356
 357 tEplKernel EplDlluCalIssueRequest(tEplDllReqServiceId Service_p,
 358                                   unsigned int uiNodeId_p, u8 bSoaFlag1_p)
 359 {
 360         tEplKernel Ret = kEplSuccessful;
 361
 362         // add node to appropriate request queue
 363         switch (Service_p) {
 364         case kEplDllReqServiceIdent:
 365         case kEplDllReqServiceStatus:
 366                 {
 367                         tEplEvent Event;
 368                         tEplDllCalIssueRequest IssueReq;
 369
 370                         Event.m_EventSink = kEplEventSinkDllkCal;
 371                         Event.m_EventType = kEplEventTypeDllkIssueReq;
 372                         IssueReq.m_Service = Service_p;
 373                         IssueReq.m_uiNodeId = uiNodeId_p;
 374                         IssueReq.m_bSoaFlag1 = bSoaFlag1_p;
 375                         Event.m_pArg = &IssueReq;
 376                         Event.m_uiSize = sizeof(IssueReq);
 377
 378                         Ret = EplEventuPost(&Event);
 379                         break;
 380                 }
 381
 382         default:
 383                 {
 384                         Ret = kEplDllInvalidParam;
 385                         goto Exit;
 386                 }
 387         }
 388
 389       Exit:
 390         return Ret;
 391 }
 392
 393 //---------------------------------------------------------------------------
 394 //
 395 // Function:    EplDlluCalAddNode()
 396 //
 397 // Description: adds the specified node to the isochronous phase.
 398 //
 399 // Parameters:  pNodeInfo_p             = pointer of node info structure
 400 //
 401 // Returns:     tEplKernel              = error code
 402 //
 403 //
 404 // State:
 405 //
 406 //---------------------------------------------------------------------------
 407
 408 tEplKernel EplDlluCalAddNode(tEplDllNodeInfo * pNodeInfo_p)
 409 {
 410         tEplKernel Ret = kEplSuccessful;
 411         tEplEvent Event;
 412
 413         Event.m_EventSink = kEplEventSinkDllkCal;
 414         Event.m_EventType = kEplEventTypeDllkAddNode;
 415         Event.m_pArg = pNodeInfo_p;
 416         Event.m_uiSize = sizeof(tEplDllNodeInfo);
 417
 418         Ret = EplEventuPost(&Event);
 419
 420         return Ret;
 421 }
 422
 423 //---------------------------------------------------------------------------
 424 //
 425 // Function:    EplDlluCalDeleteNode()
 426 //
 427 // Description: removes the specified node from the isochronous phase.
 428 //
 429 // Parameters:  uiNodeId_p              = node ID
 430 //
 431 // Returns:     tEplKernel              = error code
 432 //
 433 //
 434 // State:
 435 //
 436 //---------------------------------------------------------------------------
 437
 438 tEplKernel EplDlluCalDeleteNode(unsigned int uiNodeId_p)
 439 {
 440         tEplKernel Ret = kEplSuccessful;
 441         tEplEvent Event;
 442
 443         Event.m_EventSink = kEplEventSinkDllkCal;
 444         Event.m_EventType = kEplEventTypeDllkDelNode;
 445         Event.m_pArg = &uiNodeId_p;
 446         Event.m_uiSize = sizeof(uiNodeId_p);
 447
 448         Ret = EplEventuPost(&Event);
 449
 450         return Ret;
 451 }
 452
 453 //---------------------------------------------------------------------------
 454 //
 455 // Function:    EplDlluCalSoftDeleteNode()
 456 //
 457 // Description: removes the specified node softly from the isochronous phase.
 458 //
 459 // Parameters:  uiNodeId_p              = node ID
 460 //
 461 // Returns:     tEplKernel              = error code
 462 //
 463 //
 464 // State:
 465 //
 466 //---------------------------------------------------------------------------
 467
 468 tEplKernel EplDlluCalSoftDeleteNode(unsigned int uiNodeId_p)
 469 {
 470         tEplKernel Ret = kEplSuccessful;
 471         tEplEvent Event;
 472
 473         Event.m_EventSink = kEplEventSinkDllkCal;
 474         Event.m_EventType = kEplEventTypeDllkSoftDelNode;
 475         Event.m_pArg = &uiNodeId_p;
 476         Event.m_uiSize = sizeof(uiNodeId_p);
 477
 478         Ret = EplEventuPost(&Event);
 479
 480         return Ret;
 481 }
 482
 483 #endif // (((EPL_MODULE_INTEGRATION) & (EPL_MODULE_NMT_MN)) != 0)
 484
 485 //=========================================================================//
 486 //                                                                         //
 487 //          P R I V A T E   F U N C T I O N S                              //
 488 //                                                                         //
 489 //=========================================================================//
 490
 491 //---------------------------------------------------------------------------
 492 //
 493 // Function:    EplDlluCalSetAsndServiceIdFilter()
 494 //
 495 // Description: forwards call to EplDllkSetAsndServiceIdFilter() in kernel part
 496 //
 497 // Parameters:  ServiceId_p             = ASnd Service ID
 498 //              Filter_p                = node ID filter
 499 //
 500 // Returns:     tEplKernel              = error code
 501 //
 502 //
 503 // State:
 504 //
 505 //---------------------------------------------------------------------------
 506
 507 static tEplKernel EplDlluCalSetAsndServiceIdFilter(tEplDllAsndServiceId
 508                                                    ServiceId_p,
 509                                                    tEplDllAsndFilter Filter_p)
 510 {
 511         tEplKernel Ret = kEplSuccessful;
 512         tEplEvent Event;
 513         tEplDllCalAsndServiceIdFilter ServFilter;
 514
 515         Event.m_EventSink = kEplEventSinkDllkCal;
 516         Event.m_EventType = kEplEventTypeDllkServFilter;
 517         ServFilter.m_ServiceId = ServiceId_p;
 518         ServFilter.m_Filter = Filter_p;
 519         Event.m_pArg = &ServFilter;
 520         Event.m_uiSize = sizeof(ServFilter);
 521
 522         Ret = EplEventuPost(&Event);
 523
 524         return Ret;
 525 }
 526
 527 #endif // (((EPL_MODULE_INTEGRATION) & (EPL_MODULE_DLLU)) != 0)
 528
 529 // EOF