diagnostic/Dcm/Dcm_Dsl.c

   1 /* -------------------------------- Arctic Core ------------------------------\r
   2  * Arctic Core - the open source AUTOSAR platform http://arccore.com\r
   3  *\r
   4  * Copyright (C) 2009  ArcCore AB <contact@arccore.com>\r
   5  *\r
   6  * This source code is free software; you can redistribute it and/or modify it\r
   7  * under the terms of the GNU General Public License version 2 as published by the\r
   8  * Free Software Foundation; See <http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt>.\r
   9  *\r
  10  * This program is distributed in the hope that it will be useful, but\r
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License\r
  13  * for more details.\r
  14  * -------------------------------- Arctic Core ------------------------------*/\r
  15 \r
  16 /*\r
  17  *  General requirements\r
  18  */\r
  19 /** @req DCM030 */\r
  20 \r
  21 \r
  22 #include <string.h>\r
  23 #include "Dcm.h"\r
  24 #include "Dcm_Internal.h"\r
  25 #include "MemMap.h"\r
  26 #if defined(USE_COMM)\r
  27 #include "ComM_Dcm.h"\r
  28 #endif\r
  29 #include "PduR_Dcm.h"\r
  30 #include "ComStack_Types.h"\r
  31 #include "Cpu.h"\r
  32 //#define USE_DEBUG_PRINTF\r
  33 #include "debug.h"\r
  34 \r
  35 #define DECREMENT(timer) { if (timer > 0){timer--;} }\r
  36 #define DCM_CONVERT_MS_TO_MAIN_CYCLES(x)  ((x)/DCM_MAIN_FUNCTION_PERIOD_TIME_MS)\r
  37 \r
  38 \r
  39 #if (DCM_PAGEDBUFFER_ENABLED)\r
  40 #error "DCM_PAGEDBUFFER_ENABLED is set to STD_ON, this is not supported by the code."\r
  41 #endif\r
  42 \r
  43 /*\r
  44  * Type definitions.\r
  45  */\r
  46 // #define MAX_PARALLEL_PROTOCOLS_ALLOWED               1\r
  47 \r
  48 typedef struct {\r
  49         boolean initRun;\r
  50         //boolean diagnosticRequestPending; // This is a "semaphore" because DSD and DCM can handle multiple/parallel request at the moment.\r
  51         const Dcm_DslProtocolRowType *activeProtocol; // Points to the currently active protocol.\r
  52 //      const Dcm_DslProtocolRowType *preemptedProtocol; // Points to the currently active protocol - reserved for future use\r
  53 //      Dcm_DslRunTimeProtocolParametersType protocolList[MAX_PARALLEL_PROTOCOLS_ALLOWED];      // Reserved for future use\r
  54 } DcmDsl_RunTimeDataType;\r
  55 \r
  56 static DcmDsl_RunTimeDataType DcmDslRunTimeData = {\r
  57                 .initRun = FALSE,\r
  58                 .activeProtocol = NULL\r
  59 //              .preemptedProtocol = NULL,\r
  60 //              .protocolList = {}\r
  61 };\r
  62 \r
  63 // ################# HELPER FUNCTIONS START #################\r
  64 \r
  65 //\r
  66 // This function reset/stars the session (S3) timer. See requirement\r
  67 // DCM141 when that action should be taken.\r
  68 //\r
  69 static inline void startS3SessionTimer(Dcm_DslRunTimeProtocolParametersType *runtime, const Dcm_DslProtocolRowType *protocolRow) {\r
  70         const Dcm_DslProtocolTimingRowType *timeParams;\r
  71         timeParams = protocolRow->DslProtocolTimeLimit;\r
  72         runtime->S3ServerTimeoutCount = DCM_CONVERT_MS_TO_MAIN_CYCLES(timeParams->TimStrS3Server);\r
  73 }\r
  74 \r
  75 // - - - - - - - - - - -\r
  76 \r
  77 //\r
  78 // This function reset/stars the session (S3) timer. See requirement\r
  79 // DCM141 when that action should be taken.\r
  80 //\r
  81 static inline void stopS3SessionTimer(Dcm_DslRunTimeProtocolParametersType *runtime) {\r
  82         runtime->S3ServerTimeoutCount = 0;\r
  83 }\r
  84 \r
  85 // - - - - - - - - - - -\r
  86 \r
  87 //\r
  88 //      This function implements the requirement DCM139 when\r
  89 //      transition from one session to another.\r
  90 //\r
  91 static void changeDiagnosticSession(Dcm_DslRunTimeProtocolParametersType *runtime, Dcm_SesCtrlType newSession) {\r
  92 \r
  93         /** @req DCM139 */\r
  94 \r
  95         switch (runtime->sessionControl) {\r
  96         case DCM_DEFAULT_SESSION: // "default".\r
  97                 break;\r
  98 \r
  99         case DCM_PROGRAMMING_SESSION:\r
 100         case DCM_EXTENDED_DIAGNOSTIC_SESSION:\r
 101         case DCM_SAFTEY_SYSTEM_DIAGNOSTIC_SESSION:\r
 102         case DCM_ALL_SESSION_LEVEL:\r
 103                 runtime->securityLevel = DCM_SEC_LEV_LOCKED; // "0x00".\r
 104                 break;\r
 105 \r
 106         default:\r
 107                 DET_REPORTERROR(MODULE_ID_DCM, 0, DCM_CHANGE_DIAGNOSTIC_SESSION_ID, DCM_E_PARAM);\r
 108                 DEBUG(DEBUG_MEDIUM, "Old session invalid");\r
 109                 break;\r
 110         }\r
 111 \r
 112         switch (newSession) {\r
 113         case DCM_DEFAULT_SESSION: // "default".\r
 114         case DCM_PROGRAMMING_SESSION:\r
 115         case DCM_EXTENDED_DIAGNOSTIC_SESSION:\r
 116         case DCM_SAFTEY_SYSTEM_DIAGNOSTIC_SESSION:\r
 117         case DCM_ALL_SESSION_LEVEL:\r
 118                 runtime->sessionControl = newSession;\r
 119                 break;\r
 120 \r
 121         default:\r
 122                 DET_REPORTERROR(MODULE_ID_DCM, 0, DCM_CHANGE_DIAGNOSTIC_SESSION_ID, DCM_E_PARAM);\r
 123                 DEBUG(DEBUG_MEDIUM, "New session invalid");\r
 124                 break;\r
 125         }\r
 126 }\r
 127 \r
 128 // - - - - - - - - - - -\r
 129 \r
 130 void DslResetSessionTimeoutTimer(void) {\r
 131         const Dcm_DslProtocolRowType *activeProtocol;\r
 132         Dcm_DslRunTimeProtocolParametersType *runtime;\r
 133 \r
 134         activeProtocol = DcmDslRunTimeData.activeProtocol;\r
 135         runtime = activeProtocol->DslRunTimeProtocolParameters;\r
 136         startS3SessionTimer(runtime, activeProtocol); /** @req DCM141 */\r
 137 }\r
 138 \r
 139 // - - - - - - - - - - -\r
 140 \r
 141 void DslGetCurrentServiceTable(const Dcm_DsdServiceTableType **currentServiceTable) { /** @req DCM195 */\r
 142         const Dcm_DslProtocolRowType *activeProtocol;\r
 143 \r
 144         activeProtocol = DcmDslRunTimeData.activeProtocol;\r
 145         if (activeProtocol != NULL) {\r
 146                 *currentServiceTable = activeProtocol->DslProtocolSIDTable;\r
 147         }\r
 148 }\r
 149 \r
 150 // - - - - - - - - - - -\r
 151 \r
 152 Std_ReturnType DslGetActiveProtocol(Dcm_ProtocolType *protocolId) { /** @req DCM340 */\r
 153         Std_ReturnType ret = E_NOT_OK;\r
 154         const Dcm_DslProtocolRowType *activeProtocol;\r
 155 \r
 156         activeProtocol = DcmDslRunTimeData.activeProtocol;\r
 157         if (activeProtocol != NULL) {\r
 158                 *protocolId = activeProtocol->DslProtocolID;\r
 159                 ret = E_OK;\r
 160         }\r
 161         return ret;\r
 162 }\r
 163 \r
 164 // - - - - - - - - - - -\r
 165 \r
 166 void DslSetSecurityLevel(Dcm_SecLevelType secLevel) { /** @req DCM020 */\r
 167         const Dcm_DslProtocolRowType *activeProtocol;\r
 168         Dcm_DslRunTimeProtocolParametersType *runtime;\r
 169 \r
 170         activeProtocol = DcmDslRunTimeData.activeProtocol;\r
 171         runtime = activeProtocol->DslRunTimeProtocolParameters;\r
 172         runtime->securityLevel = secLevel;\r
 173 }\r
 174 \r
 175 // - - - - - - - - - - -\r
 176 \r
 177 Std_ReturnType DslGetSecurityLevel(Dcm_SecLevelType *secLevel) {  /** @req DCM020 *//** @req DCM338 */\r
 178         Std_ReturnType ret = E_NOT_OK;\r
 179         const Dcm_DslProtocolRowType *activeProtocol;\r
 180         Dcm_DslRunTimeProtocolParametersType *runtime = NULL;\r
 181 \r
 182         activeProtocol = DcmDslRunTimeData.activeProtocol;\r
 183         if (activeProtocol != NULL) {\r
 184                 runtime = activeProtocol->DslRunTimeProtocolParameters;\r
 185                 *secLevel = runtime->securityLevel;\r
 186                 ret = E_OK;\r
 187         }\r
 188         return ret;\r
 189 }\r
 190 \r
 191 // - - - - - - - - - - -\r
 192 \r
 193 void DslSetSesCtrlType(Dcm_SesCtrlType sesCtrl) {  /** @req DCM022 */\r
 194         const Dcm_DslProtocolRowType *activeProtocol;\r
 195         Dcm_DslRunTimeProtocolParametersType *runtime = NULL;\r
 196 \r
 197         activeProtocol = DcmDslRunTimeData.activeProtocol;\r
 198         if (activeProtocol != NULL) {\r
 199                 runtime = activeProtocol->DslRunTimeProtocolParameters;\r
 200                 if (runtime->sessionControl != sesCtrl) {\r
 201                         changeDiagnosticSession(runtime, sesCtrl);\r
 202                         DslResetSessionTimeoutTimer();\r
 203                 }\r
 204         }\r
 205 }\r
 206 \r
 207 // - - - - - - - - - - -\r
 208 \r
 209 Std_ReturnType DslGetSesCtrlType(Dcm_SesCtrlType *sesCtrlType) { /** @req DCM022 *//** @req DCM339 */\r
 210         Std_ReturnType ret = E_NOT_OK;\r
 211         const Dcm_DslProtocolRowType *activeProtocol;\r
 212         Dcm_DslRunTimeProtocolParametersType *runtime = NULL;\r
 213 \r
 214         activeProtocol = DcmDslRunTimeData.activeProtocol;\r
 215         if (activeProtocol != NULL) {\r
 216                 runtime = activeProtocol->DslRunTimeProtocolParameters;\r
 217                 *sesCtrlType = runtime->sessionControl;\r
 218                 ret = E_OK;\r
 219         }\r
 220         return ret;\r
 221 }\r
 222 \r
 223 // - - - - - - - - - - -\r
 224 \r
 225 static boolean findRxPduIdParentConfigurationLeafs(PduIdType dcmRxPduId,\r
 226                 const Dcm_DslProtocolRxType **protocolRx,\r
 227                 const Dcm_DslMainConnectionType **mainConnection,\r
 228                 const Dcm_DslConnectionType **connection,\r
 229                 const Dcm_DslProtocolRowType **protocolRow,\r
 230                 Dcm_DslRunTimeProtocolParametersType **runtime) {\r
 231 \r
 232         boolean ret = FALSE;\r
 233         if (dcmRxPduId < DCM_DSL_RX_PDU_ID_LIST_LENGTH) {\r
 234                 *protocolRx = &DCM_Config.Dsl->DslProtocol->DslProtocolRxGlobalList[dcmRxPduId];\r
 235                 *mainConnection = (*protocolRx)->DslMainConnectionParent;\r
 236                 *connection = (*mainConnection)->DslConnectionParent;\r
 237                 *protocolRow = (*connection)->DslProtocolRow;\r
 238                 *runtime = (*protocolRow)->DslRunTimeProtocolParameters;\r
 239                 ret = TRUE;\r
 240         }\r
 241         return ret;\r
 242 }\r
 243 \r
 244 // - - - - - - - - - - -\r
 245 \r
 246 static boolean findTxPduIdParentConfigurationLeafs(PduIdType dcmTxPduId,\r
 247                 const Dcm_DslProtocolTxType **protocolTx,\r
 248                 const Dcm_DslMainConnectionType **mainConnection,\r
 249                 const Dcm_DslConnectionType **connection,\r
 250                 const Dcm_DslProtocolRowType **protocolRow,\r
 251                 Dcm_DslRunTimeProtocolParametersType **runtime) {\r
 252 \r
 253         boolean ret = FALSE;\r
 254         if (dcmTxPduId < DCM_DSL_TX_PDU_ID_LIST_LENGTH) {\r
 255                 *protocolTx = &DCM_Config.Dsl->DslProtocol->DslProtocolTxGlobalList[dcmTxPduId];\r
 256                 *mainConnection = (*protocolTx)->DslMainConnectionParent;\r
 257                 *connection = (*mainConnection)->DslConnectionParent;\r
 258                 *protocolRow = (*connection)->DslProtocolRow;\r
 259                 *runtime = (*protocolRow)->DslRunTimeProtocolParameters;\r
 260                 ret = TRUE;\r
 261         }\r
 262         return ret;\r
 263 }\r
 264 \r
 265 // - - - - - - - - - - -\r
 266 \r
 267 static inline void releaseExternalRxTxBuffers(const Dcm_DslProtocolRowType *protocolRow,\r
 268                 Dcm_DslRunTimeProtocolParametersType *runtime) {\r
 269 \r
 270         protocolRow->DslProtocolTxBufferID->externalBufferRuntimeData->status = BUFFER_AVAILABLE;\r
 271         protocolRow->DslProtocolRxBufferID->externalBufferRuntimeData->status = BUFFER_AVAILABLE;\r
 272         runtime->externalTxBufferStatus = NOT_IN_USE; // We are waiting for DSD to return the buffer. qqq.\r
 273         runtime->externalRxBufferStatus = NOT_IN_USE; // We are waiting for DSD to return the buffer. qqq.\r
 274 }\r
 275 \r
 276 // - - - - - - - - - - -\r
 277 \r
 278 \r
 279 static inline void releaseExternalRxTxBuffersHelper(PduIdType rxPduIdRef) {\r
 280         const Dcm_DslProtocolRxType *protocolRx = NULL;\r
 281         const Dcm_DslMainConnectionType *mainConnection = NULL;\r
 282         const Dcm_DslConnectionType *connection = NULL;\r
 283         const Dcm_DslProtocolRowType *protocolRow = NULL;\r
 284         Dcm_DslRunTimeProtocolParametersType *runtime = NULL;\r
 285 \r
 286         if (findRxPduIdParentConfigurationLeafs(rxPduIdRef, &protocolRx, &mainConnection, &connection, &protocolRow, &runtime)) {\r
 287                 releaseExternalRxTxBuffers(protocolRow, runtime);\r
 288         }\r
 289 }\r
 290 \r
 291 // - - - - - - - - - - -\r
 292 \r
 293 /*\r
 294  *  This function is called from the DSD module to the DSL when\r
 295  *  a response to a diagnostic request has been copied into the\r
 296  *  given TX-buffer and is ready for transmission.\r
 297  */\r
 298 void DslDsdProcessingDone(PduIdType rxPduIdRef, DsdProcessingDoneResultType responseResult) {\r
 299         const Dcm_DslProtocolRxType *protocolRx = NULL;\r
 300         const Dcm_DslMainConnectionType *mainConnection = NULL;\r
 301         const Dcm_DslConnectionType *connection = NULL;\r
 302         const Dcm_DslProtocolRowType *protocolRow = NULL;\r
 303         Dcm_DslRunTimeProtocolParametersType *runtime = NULL;\r
 304 \r
 305         DEBUG( DEBUG_MEDIUM, "DslDsdProcessingDone rxPduIdRef=%d\n", rxPduIdRef);\r
 306 \r
 307         if (findRxPduIdParentConfigurationLeafs(rxPduIdRef, &protocolRx, &mainConnection, &connection, &protocolRow, &runtime)) {\r
 308             imask_t state;\r
 309             Irq_Save(state);\r
 310                 switch (responseResult) {\r
 311                 case DSD_TX_RESPONSE_READY:\r
 312                         runtime->externalTxBufferStatus = DSD_PENDING_RESPONSE_SIGNALED; /** @req DCM114 */\r
 313                         break;\r
 314                 case DSD_TX_RESPONSE_SUPPRESSED: /** @req DCM238 */\r
 315                         DEBUG( DEBUG_MEDIUM, "DslDsdProcessingDone called with DSD_TX_RESPONSE_SUPPRESSED.\n");\r
 316                         releaseExternalRxTxBuffersHelper(rxPduIdRef);\r
 317                         break;\r
 318                 default:\r
 319                         DEBUG( DEBUG_MEDIUM, "Unknown response result from DslDsdProcessingDone!\n");\r
 320                         break;\r
 321                 }\r
 322             Irq_Restore(state);\r
 323         }\r
 324 }\r
 325 \r
 326 // - - - - - - - - - - -\r
 327 \r
 328 /*\r
 329  *      This function preparing transmission of response\r
 330  *      pending message to tester.\r
 331  */\r
 332 static void sendResponse(const Dcm_DslProtocolRowType *protocol,\r
 333                 Dcm_NegativeResponseCodeType responseCode) {\r
 334         //Dcm_DslRunTimeProtocolParametersType *runtime = NULL;\r
 335         const Dcm_DslProtocolRxType *protocolRx = NULL;\r
 336         const Dcm_DslMainConnectionType *mainConnection = NULL;\r
 337         const Dcm_DslConnectionType *connection = NULL;\r
 338         const Dcm_DslProtocolRowType *protocolRow = NULL;\r
 339         Dcm_DslRunTimeProtocolParametersType *runtime = NULL;\r
 340         Std_ReturnType transmitResult;\r
 341     imask_t state;\r
 342 \r
 343     Irq_Save(state);\r
 344         /** @req DCM119 */\r
 345         if (findRxPduIdParentConfigurationLeafs(protocol->DslRunTimeProtocolParameters->diagReqestRxPduId, &protocolRx, &mainConnection, &connection, &protocolRow, &runtime)) {\r
 346                 if (runtime->localTxBuffer.status == NOT_IN_USE) {\r
 347                         runtime->localTxBuffer.status = PROVIDED_TO_DSD;\r
 348                         runtime->localTxBuffer.buffer[0] = SID_NEGATIVE_RESPONSE;\r
 349                         runtime->localTxBuffer.buffer[1] = protocol->DslProtocolRxBufferID->pduInfo.SduDataPtr[2];\r
 350                         runtime->localTxBuffer.buffer[2] = responseCode;\r
 351                         runtime->localTxBuffer.PduInfo.SduDataPtr = runtime->localTxBuffer.buffer;\r
 352                         runtime->localTxBuffer.PduInfo.SduLength = 3;\r
 353                         runtime->localTxBuffer.status = DCM_TRANSMIT_SIGNALED; // In the DslProvideTxBuffer 'callback' this state signals it is the local buffer we are interested in sending.\r
 354                         transmitResult = PduR_DcmTransmit(mainConnection->DslProtocolTx->DcmDslProtocolTxPduId, &(runtime->localTxBuffer.PduInfo));/** @req DCM115.Partially */ /* The P2ServerMin has not been implemented. */\r
 355                         if (transmitResult != E_OK) {\r
 356                                 // TODO: What to do here?\r
 357                         }\r
 358                 }\r
 359         }\r
 360     Irq_Restore(state);\r
 361 }\r
 362 \r
 363 // - - - - - - - - - - -\r
 364 \r
 365 static Std_ReturnType StartProtocolHelper(Dcm_ProtocolType protocolId) {\r
 366         Std_ReturnType ret = E_NOT_OK;\r
 367         uint16 i;\r
 368 \r
 369         for (i = 0; !DCM_Config.Dsl->DslCallbackDCMRequestService[i].Arc_EOL; i++) {\r
 370                 if (DCM_Config.Dsl->DslCallbackDCMRequestService[i].StartProtocol != NULL) {\r
 371                         ret = DCM_Config.Dsl->DslCallbackDCMRequestService[i]. StartProtocol(protocolId);\r
 372                         if (ret != E_OK) {\r
 373                                 break;\r
 374                         }\r
 375                 }\r
 376         }\r
 377         return ret;\r
 378 }\r
 379 \r
 380 // - - - - - - - - - - -\r
 381 \r
 382 static boolean isTesterPresentCommand(const PduInfoType *rxPdu) {\r
 383         boolean ret = FALSE;\r
 384         if ((rxPdu->SduDataPtr[0] == SID_TESTER_PRESENT) && (rxPdu->SduDataPtr[1] & SUPPRESS_POS_RESP_BIT)) {\r
 385                 ret = TRUE;\r
 386         }\r
 387         return ret;\r
 388 }\r
 389 \r
 390 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
 391 //      Implements 'void Dcm_Init(void)' for DSL.\r
 392 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
 393 void DslInit(void) {\r
 394         const Dcm_DslProtocolRowType *listEntry;\r
 395         Dcm_DslRunTimeProtocolParametersType *runtime = NULL;\r
 396 \r
 397         listEntry = DCM_Config.Dsl->DslProtocol->DslProtocolRowList;\r
 398         while (listEntry->Arc_EOL == FALSE) {\r
 399                 runtime = listEntry->DslRunTimeProtocolParameters;\r
 400                 runtime->externalRxBufferStatus = DCM_IDLE;\r
 401                 runtime->externalTxBufferStatus = DCM_IDLE;\r
 402                 runtime->localRxBuffer.status = DCM_IDLE;\r
 403                 runtime->localTxBuffer.status = DCM_IDLE;\r
 404                 runtime->securityLevel = DCM_SEC_LEV_LOCKED; /** @req DCM033 */\r
 405                 runtime->sessionControl = DCM_DEFAULT_SESSION; /** @req DCM034 */\r
 406                 listEntry->DslProtocolRxBufferID->externalBufferRuntimeData->status = BUFFER_AVAILABLE;\r
 407                 listEntry->DslProtocolRxBufferID->externalBufferRuntimeData->status = BUFFER_AVAILABLE;\r
 408                 listEntry++;\r
 409         };\r
 410         //DcmDslRunTimeData.diagnosticRequestPending = FALSE;\r
 411         DcmDslRunTimeData.initRun = TRUE;\r
 412 }\r
 413 \r
 414 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
 415 //      Implements 'void Dcm_MainFunction(void)' for DSL.\r
 416 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
 417 \r
 418 void DslMain(void) {\r
 419         const Dcm_DslProtocolRowType *protocolRowEntry;\r
 420         const Dcm_DslProtocolTimingRowType *timeParams = NULL;\r
 421         Dcm_DslRunTimeProtocolParametersType *runtime = NULL;\r
 422 \r
 423         protocolRowEntry = DCM_Config.Dsl->DslProtocol->DslProtocolRowList;\r
 424         while (protocolRowEntry->Arc_EOL == FALSE) {\r
 425                 runtime = protocolRowEntry->DslRunTimeProtocolParameters;\r
 426                 if (runtime != NULL) {\r
 427                         // #### HANDLE THE TESTER PRESENT PRESENCE ####\r
 428                         if (runtime->sessionControl != DCM_DEFAULT_SESSION) { // Timeout if tester present is lost.\r
 429                                 DECREMENT(runtime->S3ServerTimeoutCount);\r
 430                                 if (runtime->S3ServerTimeoutCount == 0) {\r
 431                                         changeDiagnosticSession(runtime, DCM_DEFAULT_SESSION); /** @req DCM140 */\r
 432                                 }\r
 433                         }\r
 434                         switch (runtime->externalTxBufferStatus) { // #### TX buffer state. ####\r
 435                         case NOT_IN_USE:\r
 436                                 //DEBUG( DEBUG_MEDIUM, "state NOT_IN_USE!\n");\r
 437                                 break;\r
 438                         case PROVIDED_TO_DSD: {\r
 439                                 DEBUG( DEBUG_MEDIUM, "debug_count=%d\n", debug_count);\r
 440                                 DECREMENT(runtime->stateTimeoutCount);\r
 441                                 if (runtime->stateTimeoutCount == 0) {\r
 442                                         DEBUG( DEBUG_MEDIUM, "State PROVIDED_TO_DSD timed out!", debug_count);\r
 443                                         timeParams = protocolRowEntry->DslProtocolTimeLimit;\r
 444                                         runtime->stateTimeoutCount = DCM_CONVERT_MS_TO_MAIN_CYCLES(timeParams->TimStrP2ServerMax); /* Reinitiate timer, see 9.2.2. */\r
 445                                         if (DCM_Config.Dsl->DslDiagResp != NULL) {\r
 446                                                 if (DCM_Config.Dsl->DslDiagResp->DslDiagRespForceRespPendEn == TRUE) {\r
 447                                                         if (runtime->responsePendingCount != 0) {\r
 448                                                                 sendResponse(protocolRowEntry, DCM_E_RESPONSEPENDING);  /** @req DCM024 */\r
 449                                                                 DECREMENT( runtime->responsePendingCount );\r
 450                                                         } else {\r
 451                                                                 sendResponse(protocolRowEntry, DCM_E_GENERALREJECT); /** @req DCM120 */\r
 452                                                                 releaseExternalRxTxBuffers(protocolRowEntry, runtime);\r
 453                                                         }\r
 454                                                 } else {\r
 455                                                         DEBUG( DEBUG_MEDIUM, "Not configured to send response pending, now sending general reject!\n");\r
 456                                                         sendResponse(protocolRowEntry, DCM_E_GENERALREJECT);\r
 457                                                         releaseExternalRxTxBuffers(protocolRowEntry, runtime);\r
 458                                                 }\r
 459                                         }\r
 460                                 }\r
 461                                 break;\r
 462                         }\r
 463                         case DSD_PENDING_RESPONSE_SIGNALED:\r
 464                                 // The DSD has signaled to DSL that the diagnostic response is available in the Tx buffer.\r
 465                                 // Make sure that response pending or general reject have not been issued,\r
 466                                 // if so we can not transmit to PduR because we would not know from where\r
 467                                 // the Tx confirmation resides later.\r
 468                                 DEBUG( DEBUG_MEDIUM, "state DSD_PENDING_RESPONSE_SIGNALED!\n");\r
 469                                 if (runtime->localTxBuffer.status == NOT_IN_USE) { // Make sure that no TxConfirm could be sent by the local buffer and mixed up with this transmission.\r
 470                                         const Dcm_DslProtocolRxType *protocolRx = NULL;\r
 471                                         const Dcm_DslMainConnectionType *mainConnection = NULL;\r
 472                                         const Dcm_DslConnectionType *connection = NULL;\r
 473                                         const Dcm_DslProtocolRowType *protocolRow = NULL;\r
 474                                         Std_ReturnType transmitResult;\r
 475 \r
 476                                         if (findRxPduIdParentConfigurationLeafs(runtime->diagReqestRxPduId, &protocolRx, &mainConnection, &connection, &protocolRow, &runtime)) {\r
 477                                                 const PduIdType txPduId = mainConnection->DslProtocolTx->DcmDslProtocolTxPduId;\r
 478                                                 DEBUG( DEBUG_MEDIUM, "runtime->externalTxBufferStatus enter state DCM_TRANSMIT_SIGNALED.\n" );\r
 479                                                 runtime->externalTxBufferStatus = DCM_TRANSMIT_SIGNALED;\r
 480                                                 transmitResult = PduR_DcmTransmit(txPduId, &runtime->diagnosticResponseFromDsd); /** @req DCM237 *//* Will trigger PduR (CanTP) to call DslProvideTxBuffer(). */\r
 481                                                 if (transmitResult != E_OK) {\r
 482                                                         // TODO: What to do here?\r
 483                                                 }\r
 484                                         } else {\r
 485                                                 DEBUG( DEBUG_MEDIUM, "***** WARNING, THIS IS UNEXPECTED !!! ********.\n" );\r
 486                                                 const PduIdType txPduId = protocolRowEntry->DslConnection->DslMainConnection->DslProtocolTx->DcmDslProtocolTxPduId;\r
 487                                                 DEBUG( DEBUG_MEDIUM, "runtime->externalTxBufferStatus enter state DSD_PENDING_RESPONSE_SIGNALED.\n", txPduId);\r
 488                                                 runtime->externalTxBufferStatus = DCM_TRANSMIT_SIGNALED;\r
 489                                                 DEBUG( DEBUG_MEDIUM, "Calling PduR_DcmTransmit with txPduId = %d from DslMain\n", txPduId);\r
 490                                                 transmitResult = PduR_DcmTransmit(txPduId, &runtime->diagnosticResponseFromDsd); /** @req DCM237 *//* Will trigger PduR (CanTP) to call DslProvideTxBuffer(). */\r
 491                                                 if (transmitResult != E_OK) {\r
 492                                                         // TODO: What to do here?\r
 493                                                 }\r
 494                                         }\r
 495                                 }\r
 496                                 break;\r
 497                         case DCM_TRANSMIT_SIGNALED:\r
 498                                 //DEBUG( DEBUG_MEDIUM, "state DSD_PENDING_RESPONSE_SIGNALED!\n");\r
 499                                 break;\r
 500                         case PROVIDED_TO_PDUR: // The valid data is being transmitted by TP-layer.\r
 501                                 //DEBUG( DEBUG_MEDIUM, "state DSD_PENDING_RESPONSE_SIGNALED!\n");\r
 502                                 break;\r
 503                         default:\r
 504                                 break;\r
 505                         }\r
 506                 }\r
 507                 protocolRowEntry++;\r
 508         }\r
 509 }\r
 510 \r
 511 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
 512 //      Implements 'BufReq_ReturnType Dcm_ProvideRxBuffer(PduIdType dcmRxPduId,\r
 513 //  PduLengthType tpSduLength, PduInfoType **pduInfoPtr)'.\r
 514 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
 515 //  This function is called called by the PduR typically when CanTp has\r
 516 //  received a FF or a single frame and needs to obtain a buffer from the\r
 517 //  receiver so that received data can be forwarded.\r
 518 \r
 519 BufReq_ReturnType DslProvideRxBufferToPdur(PduIdType dcmRxPduId, PduLengthType tpSduLength, const PduInfoType **pduInfoPtr) {\r
 520         BufReq_ReturnType ret = BUFREQ_NOT_OK;\r
 521         const Dcm_DslProtocolRxType *protocolRx = NULL;\r
 522         const Dcm_DslMainConnectionType *mainConnection = NULL;\r
 523         const Dcm_DslConnectionType *connection = NULL;\r
 524         const Dcm_DslProtocolRowType *protocolRow = NULL;\r
 525         Dcm_DslRunTimeProtocolParametersType *runtime = NULL;\r
 526     imask_t state;\r
 527 \r
 528         DEBUG( DEBUG_MEDIUM, "DslProvideRxBufferToPdur(dcmRxPduId=%d) called!\n", dcmRxPduId);\r
 529     Irq_Save(state);\r
 530         if (findRxPduIdParentConfigurationLeafs(dcmRxPduId, &protocolRx, &mainConnection, &connection, &protocolRow, &runtime)) {\r
 531                 const Dcm_DslBufferType *externalRxBuffer = protocolRow->DslProtocolRxBufferID;\r
 532                 if (externalRxBuffer->pduInfo.SduLength >= tpSduLength) { /** @req DCM443 */\r
 533                         if ((runtime->externalRxBufferStatus == NOT_IN_USE) && (externalRxBuffer->externalBufferRuntimeData->status == BUFFER_AVAILABLE)) {\r
 534                                 DEBUG( DEBUG_MEDIUM, "External buffer available!\n");\r
 535                                 // ### EXTERNAL BUFFER IS AVAILABLE; GRAB IT AND REMEBER THAT WE OWN IT! ###\r
 536                                 externalRxBuffer->externalBufferRuntimeData->status = BUFFER_BUSY;\r
 537                                 runtime->diagnosticRequestFromTester.SduDataPtr = externalRxBuffer->pduInfo.SduDataPtr;\r
 538                                 runtime->diagnosticRequestFromTester.SduLength = tpSduLength;\r
 539                                 *pduInfoPtr = &(runtime->diagnosticRequestFromTester);\r
 540                                 runtime->externalRxBufferStatus = PROVIDED_TO_PDUR; /** @req DCM342 */\r
 541                                 ret = BUFREQ_OK;\r
 542                         } else {\r
 543                                 DEBUG( DEBUG_MEDIUM, "Local buffer available!\n");\r
 544                                 if (runtime->externalRxBufferStatus == PROVIDED_TO_DSD) {\r
 545                                         // ### EXTERNAL BUFFER IS IN USE BY THE DSD, TRY TO USE LOCAL BUFFER! ###\r
 546                                         if (runtime->localRxBuffer.status == NOT_IN_USE) {\r
 547                                                 if (tpSduLength < DCM_DSL_LOCAL_BUFFER_LENGTH) {\r
 548                                                         runtime->localRxBuffer.status = PROVIDED_TO_PDUR;\r
 549                                                         runtime->localRxBuffer.PduInfo.SduDataPtr = runtime->localRxBuffer.buffer;\r
 550                                                         runtime->localRxBuffer.PduInfo.SduLength = tpSduLength;\r
 551                                                         *pduInfoPtr = &(runtime->localRxBuffer.PduInfo);\r
 552                                                         ret = BUFREQ_OK;\r
 553                                                 } else {\r
 554                                                         ret = BUFREQ_BUSY;\r
 555                                                 }\r
 556                                         }\r
 557                                 } else {\r
 558                                         // The buffer is in use by the PduR, we can not help this because then\r
 559                                         // we would have two different Rx-indications with same PduId but we\r
 560                                         // will not know which buffer the indication should free.\r
 561                                         ret = BUFREQ_BUSY; /** @req DCM445 */\r
 562                                 }\r
 563                         }\r
 564                 } else {\r
 565                         ret = BUFREQ_OVFL; /** @req DCM444 */\r
 566                 }\r
 567                 if (ret == BUFREQ_OK) {\r
 568                         stopS3SessionTimer(runtime); /** @req DCM141 */\r
 569                 }\r
 570         }\r
 571     Irq_Restore(state);\r
 572         return ret;\r
 573 }\r
 574 \r
 575 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
 576 //      Implements 'void Dcm_RxIndication(PduIdType dcmRxPduId, NotifResultType result)'.\r
 577 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
 578 //      This function is called called by the PduR typically when CanTp has\r
 579 //      received the diagnostic request, copied it to the provided buffer and need to indicate\r
 580 //      this to the DCM (DSL) module via proprietary API.\r
 581 \r
 582 void DslRxIndicationFromPduR(PduIdType dcmRxPduId, NotifResultType result) {\r
 583         const Dcm_DslProtocolRxType *protocolRx = NULL;\r
 584         const Dcm_DslMainConnectionType *mainConnection = NULL;\r
 585         const Dcm_DslConnectionType *connection = NULL;\r
 586         const Dcm_DslProtocolRowType *protocolRow = NULL;\r
 587         const Dcm_DslProtocolTimingRowType *timeParams = NULL;\r
 588         Dcm_DslRunTimeProtocolParametersType *runtime = NULL;\r
 589         Std_ReturnType higherLayerResp;\r
 590         imask_t state;\r
 591 \r
 592         /** @req DCM345, this needs to be verified when connection to CanIf works. */\r
 593 \r
 594         if (findRxPduIdParentConfigurationLeafs(dcmRxPduId, &protocolRx, &mainConnection, &connection, &protocolRow, &runtime)) {\r
 595                 timeParams = protocolRow->DslProtocolTimeLimit;\r
 596                 // We need to find out in what buffer we can find our Rx data (it can\r
 597                 // be either in the normal RX-buffer or the 'extra' buffer for implementing\r
 598                 // the Concurrent "Test Present" functionality.\r
 599             Irq_Save(state);\r
 600                 if (runtime->externalRxBufferStatus == PROVIDED_TO_PDUR) {\r
 601                         if ( result == NTFRSLT_OK ) { /** @req DCM111 */\r
 602                                 if (isTesterPresentCommand(&(protocolRow->DslProtocolRxBufferID->pduInfo))) {\r
 603                                         startS3SessionTimer(runtime, protocolRow); /** @req DCM141 *//** @req DCM112 *//** @req DCM113 */\r
 604                                         runtime->externalRxBufferStatus = NOT_IN_USE;\r
 605                                         protocolRow->DslProtocolRxBufferID->externalBufferRuntimeData->status = BUFFER_AVAILABLE;\r
 606                                 } else {\r
 607                                         if (runtime->protocolStarted == FALSE) {\r
 608                                                 higherLayerResp = StartProtocolHelper(protocolRow->DslProtocolID); /** @req DCM036 */\r
 609                                                 if (higherLayerResp == E_OK) {\r
 610                                                         runtime->protocolStarted = TRUE;\r
 611                                                         DcmDslRunTimeData.activeProtocol = protocolRow;\r
 612                                                 }\r
 613                                         }\r
 614                                         if (runtime->protocolStarted == TRUE) {\r
 615                                                 if (runtime->diagnosticActiveComM == FALSE) {\r
 616 #if defined(USE_COMM)\r
 617                                                         ComM_DCM_ActiveDiagnostic(); /** @req DCM163 */\r
 618 #endif\r
 619                                                         runtime->diagnosticActiveComM = TRUE;\r
 620                                                 }\r
 621                                                 timeParams = protocolRow->DslProtocolTimeLimit;\r
 622                                                 runtime->stateTimeoutCount = DCM_CONVERT_MS_TO_MAIN_CYCLES(timeParams->TimStrP2ServerMax); /* See 9.2.2. */\r
 623                                                 runtime->externalRxBufferStatus = PROVIDED_TO_DSD; /** @req DCM241 */\r
 624                                                 if (runtime->externalTxBufferStatus == NOT_IN_USE) {\r
 625                                                         DEBUG( DEBUG_MEDIUM, "External Tx buffer available, we can pass it to DSD.\n");\r
 626                                                 } else {\r
 627                                                         DEBUG( DEBUG_MEDIUM, "External buffer not available, a response is being transmitted?\n");\r
 628                                                 }\r
 629                                                 runtime->externalTxBufferStatus = PROVIDED_TO_DSD; /** @req DCM241 */\r
 630                                                 runtime->responsePendingCount = DCM_Config.Dsl->DslDiagResp->DslDiagRespMaxNumRespPend;\r
 631                                                 runtime->diagnosticResponseFromDsd.SduDataPtr = protocolRow->DslProtocolTxBufferID->pduInfo.SduDataPtr;\r
 632                                                 runtime->diagnosticResponseFromDsd.SduLength = protocolRow->DslProtocolTxBufferID->pduInfo.SduLength;\r
 633                                                 DEBUG( DEBUG_MEDIUM, "DsdDslDataIndication(DcmDslProtocolTxPduId=%d, dcmRxPduId=%d)\n", mainConnection->DslProtocolTx->DcmDslProtocolTxPduId, dcmRxPduId);\r
 634                                                 runtime->diagReqestRxPduId = dcmRxPduId;\r
 635                                                 DsdDslDataIndication(  // qqq: We are inside a critical section.\r
 636                                                                 &(runtime->diagnosticRequestFromTester),\r
 637                                                                 protocolRow->DslProtocolSIDTable,       /** @req DCM035 */\r
 638                                                                 protocolRx->DslProtocolAddrType,\r
 639                                                                 mainConnection->DslProtocolTx->DcmDslProtocolTxPduId,\r
 640                                                                 &(runtime->diagnosticResponseFromDsd),\r
 641                                                                 dcmRxPduId);\r
 642                                         }\r
 643                                 }\r
 644                         } else { /** @req DCM344 */\r
 645                                 // The indication was not equal to NTFRSLT_OK, release the resources and no forward to DSD.\r
 646                                 runtime->externalRxBufferStatus = NOT_IN_USE;\r
 647                                 protocolRow->DslProtocolRxBufferID->externalBufferRuntimeData->status = BUFFER_AVAILABLE;\r
 648                         }\r
 649                 } else {\r
 650                         // It is the local buffer that was provided to the PduR, that buffer\r
 651                         // is only used for tester present reception in parallel to diagnostic\r
 652                         // requests.\r
 653                         if (runtime->localRxBuffer.status == PROVIDED_TO_PDUR) {\r
 654                                 if ( result == NTFRSLT_OK ) { // Make sure that the data in buffer is valid.\r
 655                                         if (isTesterPresentCommand(&(runtime->localRxBuffer.PduInfo))) {\r
 656                                                 startS3SessionTimer(runtime, protocolRow); /** @req DCM141 *//** @req DCM112 *//** @req DCM113 */\r
 657                                         }\r
 658                                 }\r
 659                                 runtime->localRxBuffer.status = NOT_IN_USE;\r
 660                         }\r
 661                 }\r
 662             Irq_Restore(state);\r
 663         }\r
 664 }\r
 665 \r
 666 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
 667 //      Implements 'BufReq_ReturnType Dcm_ProvideTxBuffer(PduIdType dcmTxPduId,\r
 668 //  PduInfoType **pduInfoPtr, PduLengthType length)'.\r
 669 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
 670 //  This TX-buffer request is likely triggered by the transport layer (i.e. CanTp)\r
 671 //  after PduR_DcmTransmit() has been called (via PduR to CanTp) indicating that something\r
 672 //  is to be sent. The PduR_DcmTransmit() call is done from the DSL main function when\r
 673 //  it has detected that the pending request has been answered by DSD\r
 674 //  (or any other module?).\r
 675 \r
 676 BufReq_ReturnType DslProvideTxBuffer(PduIdType dcmTxPduId, const PduInfoType **pduInfoPtr, PduLengthType length) {\r
 677         BufReq_ReturnType ret = BUFREQ_NOT_OK;\r
 678         const Dcm_DslProtocolTxType *protocolTx = NULL;\r
 679         const Dcm_DslMainConnectionType *mainConnection = NULL;\r
 680         const Dcm_DslConnectionType *connection = NULL;\r
 681         const Dcm_DslProtocolRowType *protocolRow = NULL;\r
 682         Dcm_DslRunTimeProtocolParametersType *runtime = NULL;\r
 683 \r
 684         (void)length;           // Currently not used, this is only to remove compilation warnings\r
 685         DEBUG( DEBUG_MEDIUM, "DslProvideTxBuffer=%d\n", dcmTxPduId);\r
 686         if (findTxPduIdParentConfigurationLeafs(dcmTxPduId, &protocolTx, &mainConnection, &connection, &protocolRow, &runtime)) {\r
 687                 switch (runtime->externalTxBufferStatus) { // ### EXTERNAL TX BUFFER ###\r
 688                 case DCM_TRANSMIT_SIGNALED: {\r
 689                         /** @req DCM346 */ /* Length verification is already done if this state is reached. */\r
 690                         *pduInfoPtr = &(protocolRow->DslProtocolTxBufferID->pduInfo);\r
 691                         runtime->externalTxBufferStatus = PROVIDED_TO_PDUR; /** @req DCM349 */\r
 692                         ret = BUFREQ_OK;\r
 693                         break;\r
 694                 }\r
 695                 default:\r
 696                         DEBUG( DEBUG_MEDIUM, "DCM_TRANSMIT_SIGNALED was not signaled in the external buffer\n");\r
 697                         ret = BUFREQ_NOT_OK;\r
 698                         break;\r
 699                 }\r
 700                 if (ret == BUFREQ_NOT_OK) {\r
 701                         switch (runtime->localTxBuffer.status) { // ### LOCAL TX BUFFER ###\r
 702                         case DCM_TRANSMIT_SIGNALED: {\r
 703                                 runtime->localTxBuffer.PduInfo.SduDataPtr = runtime->localTxBuffer.buffer;\r
 704                                 runtime->localTxBuffer.PduInfo.SduLength = runtime->localTxBuffer.messageLenght;\r
 705                                 *pduInfoPtr = &runtime->localTxBuffer.PduInfo;\r
 706                                 runtime->localTxBuffer.status = PROVIDED_TO_PDUR; // Now the DSL should not touch this Tx-buffer anymore.\r
 707                                 ret = BUFREQ_OK;\r
 708                                 break;\r
 709                         }\r
 710                         default:\r
 711                                 DEBUG( DEBUG_MEDIUM, "DCM_TRANSMIT_SIGNALED was not signaled for the local buffer either\n");\r
 712                                 ret = BUFREQ_NOT_OK;\r
 713                                 break;\r
 714                         }\r
 715                 }\r
 716         }\r
 717         return ret;\r
 718 }\r
 719 \r
 720 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
 721 //      Implements 'void Dcm_TxConfirmation(PduIdType dcmTxPduId, NotifResultType result))'.\r
 722 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
 723 //      This function is called by the PduR (which has been trigged by i.e. CanTp)\r
 724 //      when a transmission has been successfully finished, have had errors or\r
 725 //      is even stopped.\r
 726 \r
 727 void DslTxConfirmation(PduIdType dcmTxPduId, NotifResultType result) {\r
 728         const Dcm_DslProtocolTxType *protocolTx = NULL;\r
 729         const Dcm_DslMainConnectionType *mainConnection = NULL;\r
 730         const Dcm_DslConnectionType *connection = NULL;\r
 731         const Dcm_DslProtocolRowType *protocolRow = NULL;\r
 732         Dcm_DslRunTimeProtocolParametersType *runtime = NULL;\r
 733         imask_t state;\r
 734 \r
 735         DEBUG( DEBUG_MEDIUM, "DslTxConfirmation=%d, result=%d\n", dcmTxPduId, result);\r
 736         if (findTxPduIdParentConfigurationLeafs(dcmTxPduId, &protocolTx, &mainConnection, &connection, &protocolRow, &runtime)) {\r
 737                 boolean externalBufferReleased = FALSE;\r
 738 \r
 739                 // Free the buffer and free the Pdu runtime data buffer.\r
 740             Irq_Save(state);\r
 741                 switch (runtime->externalTxBufferStatus) { // ### EXTERNAL TX BUFFER ###\r
 742                 case PROVIDED_TO_PDUR: {\r
 743 #if defined(USE_COMM)\r
 744                         ComM_DCM_InactiveDiagnostic(); /** @req DCM164 */\r
 745 #endif\r
 746                         startS3SessionTimer(runtime, protocolRow); /** @req DCM141 */\r
 747                         releaseExternalRxTxBuffers(protocolRow, runtime); /** @req DCM118 *//** @req DCM352 *//** @req DCM353 *//** @req DCM354 */\r
 748                         externalBufferReleased = TRUE;\r
 749                         DEBUG( DEBUG_MEDIUM, "Released external buffer OK!\n");\r
 750                         DsdDataConfirmation(mainConnection->DslProtocolTx->DcmDslProtocolTxPduId, result); /** @req DCM117 *//** @req DCM235 */\r
 751                         break;\r
 752                 }\r
 753                 default:\r
 754                         break;\r
 755                 }\r
 756                 if (!externalBufferReleased) {\r
 757                         switch (runtime->localTxBuffer.status) { // ### LOCAL TX BUFFER ###\r
 758                         case PROVIDED_TO_PDUR:\r
 759                                 DEBUG( DEBUG_MEDIUM, "Released local buffer buffer OK!\n");\r
 760                                 runtime->localTxBuffer.status = DCM_IDLE;\r
 761                                 break;\r
 762                         default:\r
 763                                 DEBUG( DEBUG_MEDIUM, "WARNING! DslTxConfirmation could not release external or local buffer!\n");\r
 764                                 break;\r
 765                         }\r
 766                 }\r
 767             Irq_Restore(state);\r
 768         }\r
 769 }\r
 770 \r