git.oblomov.eu Git - linux-2.6/blob - drivers/staging/epl/demo_main.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:  demoapplication for EPL MN (with SDO over UDP)
   9                 under Linux on X86 with RTL8139 Ethernet controller
  10
  11   License:
  12
  13     Redistribution and use in source and binary forms, with or without
  14     modification, are permitted provided that the following conditions
  15     are met:
  16
  17     1. Redistributions of source code must retain the above copyright
  18        notice, this list of conditions and the following disclaimer.
  19
  20     2. Redistributions in binary form must reproduce the above copyright
  21        notice, this list of conditions and the following disclaimer in the
  22        documentation and/or other materials provided with the distribution.
  23
  24     3. Neither the name of SYSTEC electronic GmbH nor the names of its
  25        contributors may be used to endorse or promote products derived
  26        from this software without prior written permission. For written
  27        permission, please contact info@systec-electronic.com.
  28
  29     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  30     "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  31     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  32     FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  33     COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  34     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  35     BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  36     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  37     CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  38     LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  39     ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  40     POSSIBILITY OF SUCH DAMAGE.
  41
  42     Severability Clause:
  43
  44         If a provision of this License is or becomes illegal, invalid or
  45         unenforceable in any jurisdiction, that shall not affect:
  46         1. the validity or enforceability in that jurisdiction of any other
  47            provision of this License; or
  48         2. the validity or enforceability in other jurisdictions of that or
  49            any other provision of this License.
  50
  51   -------------------------------------------------------------------------
  52
  53                 $RCSfile: demo_main.c,v $
  54
  55                 $Author: D.Krueger $
  56
  57                 $Revision: 1.10 $  $Date: 2008/11/19 18:11:43 $
  58
  59                 $State: Exp $
  60
  61                 Build Environment:
  62                 GCC
  63
  64   -------------------------------------------------------------------------
  65
  66   Revision History:
  67
  68   2006/09/01 d.k.:   start of implementation
  69
  70 ****************************************************************************/
  71
  72 #include <linux/module.h>
  73 #include <linux/kernel.h>
  74 #include <linux/init.h>
  75 #include <linux/errno.h>
  76 #include <linux/major.h>
  77 #include <asm/io.h>
  78 #include <asm/uaccess.h>
  79 #include <asm/atomic.h>
  80 #include <linux/sched.h>
  81 #include <linux/kmod.h>
  82 #include <linux/slab.h>
  83 #include <linux/pci.h>
  84 #include <linux/proc_fs.h>
  85
  86 #include "Epl.h"
  87 #include "proc_fs.h"
  88
  89 /***************************************************************************/
  90 /*                                                                         */
  91 /*                                                                         */
  92 /*          G L O B A L   D E F I N I T I O N S                            */
  93 /*                                                                         */
  94 /*                                                                         */
  95 /***************************************************************************/
  96
  97 // Metainformation
  98 MODULE_LICENSE("Dual BSD/GPL");
  99 #ifdef MODULE_AUTHOR
 100 MODULE_AUTHOR("Daniel.Krueger@SYSTEC-electronic.com");
 101 MODULE_DESCRIPTION("EPL MN demo");
 102 #endif
 103
 104 //---------------------------------------------------------------------------
 105 // const defines
 106 //---------------------------------------------------------------------------
 107
 108 // TracePoint support for realtime-debugging
 109 #ifdef _DBG_TRACE_POINTS_
 110 void TgtDbgSignalTracePoint(u8 bTracePointNumber_p);
 111 #define TGT_DBG_SIGNAL_TRACE_POINT(p)   TgtDbgSignalTracePoint(p)
 112 #else
 113 #define TGT_DBG_SIGNAL_TRACE_POINT(p)
 114 #endif
 115
 116 #define NODEID      0xF0        //=> MN
 117 #define CYCLE_LEN   5000        // [us]
 118 #define IP_ADDR     0xc0a86401  // 192.168.100.1
 119 #define SUBNET_MASK 0xFFFFFF00  // 255.255.255.0
 120 #define HOSTNAME    "SYS TEC electronic EPL Stack    "
 121 #define IF_ETH      EPL_VETH_NAME
 122
 123 // LIGHT EFFECT
 124 #define DEFAULT_MAX_CYCLE_COUNT 20      // 6 is very fast
 125 #define APP_DEFAULT_MODE        0x01
 126 #define APP_LED_COUNT           5       // number of LEDs in one row
 127 #define APP_LED_MASK            ((1 << APP_LED_COUNT) - 1)
 128 #define APP_DOUBLE_LED_MASK     ((1 << (APP_LED_COUNT * 2)) - 1)
 129 #define APP_MODE_COUNT          5
 130 #define APP_MODE_MASK           ((1 << APP_MODE_COUNT) - 1)
 131
 132 //---------------------------------------------------------------------------
 133 // local types
 134 //---------------------------------------------------------------------------
 135
 136 //---------------------------------------------------------------------------
 137 // modul globale vars
 138 //---------------------------------------------------------------------------
 139
 140 static const u8 abMacAddr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
 141
 142 static u8 bVarIn1_l;
 143 static u8 bVarOut1_l;
 144 static u8 bVarOut1Old_l;
 145 static u8 bModeSelect_l;                // state of the pushbuttons to select the mode
 146 static u8 bSpeedSelect_l;               // state of the pushbuttons to increase/decrease the speed
 147 static u8 bSpeedSelectOld_l;            // old state of the pushbuttons
 148 static u32 dwLeds_l;                    // current state of all LEDs
 149 static u8 bLedsRow1_l;          // current state of the LEDs in row 1
 150 static u8 bLedsRow2_l;          // current state of the LEDs in row 2
 151 static u8 abSelect_l[3];                // pushbuttons from CNs
 152
 153 static u32 dwMode_l;                    // current mode
 154 static int iCurCycleCount_l;            // current cycle count
 155 static int iMaxCycleCount_l;            // maximum cycle count (i.e. number of cycles until next light movement step)
 156 static int iToggle;                     // indicates the light movement direction
 157
 158 //static u8 abDomain_l[3000];
 159
 160 static wait_queue_head_t WaitQueueShutdown_g;   // wait queue for tEplNmtEventSwitchOff
 161 static atomic_t AtomicShutdown_g = ATOMIC_INIT(FALSE);
 162
 163 static u32 dw_le_CycleLen_g;
 164
 165 static uint uiNodeId_g = EPL_C_ADR_INVALID;
 166 module_param_named(nodeid, uiNodeId_g, uint, 0);
 167
 168 static uint uiCycleLen_g = CYCLE_LEN;
 169 module_param_named(cyclelen, uiCycleLen_g, uint, 0);
 170
 171 //---------------------------------------------------------------------------
 172 // local function prototypes
 173 //---------------------------------------------------------------------------
 174
 175 // This function is the entry point for your object dictionary. It is defined
 176 // in OBJDICT.C by define EPL_OBD_INIT_RAM_NAME. Use this function name to define
 177 // this function prototype here. If you want to use more than one Epl
 178 // instances then the function name of each object dictionary has to differ.
 179
 180 tEplKernel EplObdInitRam(tEplObdInitParam *pInitParam_p);
 181
 182 tEplKernel AppCbEvent(tEplApiEventType EventType_p,     // IN: event type (enum)
 183                       tEplApiEventArg *pEventArg_p,     // IN: event argument (union)
 184                       void *pUserArg_p);
 185
 186 tEplKernel AppCbSync(void);
 187
 188
 189 //---------------------------------------------------------------------------
 190 //  Kernel Module specific Data Structures
 191 //---------------------------------------------------------------------------
 192
 193 //module_init(EplLinInit);
 194 //module_exit(EplLinExit);
 195
 196 //=========================================================================//
 197 //                                                                         //
 198 //          P U B L I C   F U N C T I O N S                                //
 199 //                                                                         //
 200 //=========================================================================//
 201
 202 //---------------------------------------------------------------------------
 203 //
 204 // Function:
 205 //
 206 // Description:
 207 //
 208 //
 209 //
 210 // Parameters:
 211 //
 212 //
 213 // Returns:
 214 //
 215 //
 216 // State:
 217 //
 218 //---------------------------------------------------------------------------
 219 #if 0
 220 static int __init EplLinInit(void)
 221 {
 222         tEplKernel EplRet;
 223         int iRet;
 224         static tEplApiInitParam EplApiInitParam = { 0 };
 225         char *sHostname = HOSTNAME;
 226         char *argv[4], *envp[3];
 227         char sBuffer[16];
 228         unsigned int uiVarEntries;
 229         tEplObdSize ObdSize;
 230
 231         atomic_set(&AtomicShutdown_g, TRUE);
 232
 233         // get node ID from insmod command line
 234         EplApiInitParam.m_uiNodeId = uiNodeId_g;
 235
 236         if (EplApiInitParam.m_uiNodeId == EPL_C_ADR_INVALID) {  // invalid node ID set
 237                 // set default node ID
 238                 EplApiInitParam.m_uiNodeId = NODEID;
 239         }
 240
 241         uiNodeId_g = EplApiInitParam.m_uiNodeId;
 242
 243         // calculate IP address
 244         EplApiInitParam.m_dwIpAddress =
 245             (0xFFFFFF00 & IP_ADDR) | EplApiInitParam.m_uiNodeId;
 246
 247         EplApiInitParam.m_fAsyncOnly = FALSE;
 248
 249         EplApiInitParam.m_uiSizeOfStruct = sizeof(EplApiInitParam);
 250         EPL_MEMCPY(EplApiInitParam.m_abMacAddress, abMacAddr,
 251                    sizeof(EplApiInitParam.m_abMacAddress));
 252 //      EplApiInitParam.m_abMacAddress[5] = (u8) EplApiInitParam.m_uiNodeId;
 253         EplApiInitParam.m_dwFeatureFlags = -1;
 254         EplApiInitParam.m_dwCycleLen = uiCycleLen_g;    // required for error detection
 255         EplApiInitParam.m_uiIsochrTxMaxPayload = 100;   // const
 256         EplApiInitParam.m_uiIsochrRxMaxPayload = 100;   // const
 257         EplApiInitParam.m_dwPresMaxLatency = 50000;     // const; only required for IdentRes
 258         EplApiInitParam.m_uiPreqActPayloadLimit = 36;   // required for initialisation (+28 bytes)
 259         EplApiInitParam.m_uiPresActPayloadLimit = 36;   // required for initialisation of Pres frame (+28 bytes)
 260         EplApiInitParam.m_dwAsndMaxLatency = 150000;    // const; only required for IdentRes
 261         EplApiInitParam.m_uiMultiplCycleCnt = 0;        // required for error detection
 262         EplApiInitParam.m_uiAsyncMtu = 1500;    // required to set up max frame size
 263         EplApiInitParam.m_uiPrescaler = 2;      // required for sync
 264         EplApiInitParam.m_dwLossOfFrameTolerance = 500000;
 265         EplApiInitParam.m_dwAsyncSlotTimeout = 3000000;
 266         EplApiInitParam.m_dwWaitSocPreq = 150000;
 267         EplApiInitParam.m_dwDeviceType = -1;    // NMT_DeviceType_U32
 268         EplApiInitParam.m_dwVendorId = -1;      // NMT_IdentityObject_REC.VendorId_U32
 269         EplApiInitParam.m_dwProductCode = -1;   // NMT_IdentityObject_REC.ProductCode_U32
 270         EplApiInitParam.m_dwRevisionNumber = -1;        // NMT_IdentityObject_REC.RevisionNo_U32
 271         EplApiInitParam.m_dwSerialNumber = -1;  // NMT_IdentityObject_REC.SerialNo_U32
 272         EplApiInitParam.m_dwSubnetMask = SUBNET_MASK;
 273         EplApiInitParam.m_dwDefaultGateway = 0;
 274         EPL_MEMCPY(EplApiInitParam.m_sHostname, sHostname,
 275                    sizeof(EplApiInitParam.m_sHostname));
 276
 277         // currently unset parameters left at default value 0
 278         //EplApiInitParam.m_qwVendorSpecificExt1;
 279         //EplApiInitParam.m_dwVerifyConfigurationDate; // CFM_VerifyConfiguration_REC.ConfDate_U32
 280         //EplApiInitParam.m_dwVerifyConfigurationTime; // CFM_VerifyConfiguration_REC.ConfTime_U32
 281         //EplApiInitParam.m_dwApplicationSwDate;       // PDL_LocVerApplSw_REC.ApplSwDate_U32 on programmable device or date portion of NMT_ManufactSwVers_VS on non-programmable device
 282         //EplApiInitParam.m_dwApplicationSwTime;       // PDL_LocVerApplSw_REC.ApplSwTime_U32 on programmable device or time portion of NMT_ManufactSwVers_VS on non-programmable device
 283         //EplApiInitParam.m_abVendorSpecificExt2[48];
 284
 285         // set callback functions
 286         EplApiInitParam.m_pfnCbEvent = AppCbEvent;
 287         EplApiInitParam.m_pfnCbSync = AppCbSync;
 288
 289         printk
 290             ("\n\n Hello, I'm a simple POWERLINK node running as %s!\n  (build: %s / %s)\n\n",
 291              (uiNodeId_g ==
 292               EPL_C_ADR_MN_DEF_NODE_ID ? "Managing Node" : "Controlled Node"),
 293              __DATE__, __TIME__);
 294
 295         // initialize the Linux a wait queue for shutdown of this module
 296         init_waitqueue_head(&WaitQueueShutdown_g);
 297
 298         // initialize the procfs device
 299         EplRet = EplLinProcInit();
 300         if (EplRet != kEplSuccessful) {
 301                 goto Exit;
 302         }
 303         // initialize POWERLINK stack
 304         EplRet = EplApiInitialize(&EplApiInitParam);
 305         if (EplRet != kEplSuccessful) {
 306                 goto Exit;
 307         }
 308         // link process variables used by CN to object dictionary
 309         ObdSize = sizeof(bVarIn1_l);
 310         uiVarEntries = 1;
 311         EplRet =
 312             EplApiLinkObject(0x6000, &bVarIn1_l, &uiVarEntries, &ObdSize, 0x01);
 313         if (EplRet != kEplSuccessful) {
 314                 goto Exit;
 315         }
 316
 317         ObdSize = sizeof(bVarOut1_l);
 318         uiVarEntries = 1;
 319         EplRet =
 320             EplApiLinkObject(0x6200, &bVarOut1_l, &uiVarEntries, &ObdSize,
 321                              0x01);
 322         if (EplRet != kEplSuccessful) {
 323                 goto Exit;
 324         }
 325         // link process variables used by MN to object dictionary
 326 #if(((EPL_MODULE_INTEGRATION) & (EPL_MODULE_NMT_MN)) != 0)
 327         ObdSize = sizeof(bLedsRow1_l);
 328         uiVarEntries = 1;
 329         EplRet =
 330             EplApiLinkObject(0x2000, &bLedsRow1_l, &uiVarEntries, &ObdSize,
 331                              0x01);
 332         if (EplRet != kEplSuccessful) {
 333                 goto Exit;
 334         }
 335
 336         ObdSize = sizeof(bLedsRow2_l);
 337         uiVarEntries = 1;
 338         EplRet =
 339             EplApiLinkObject(0x2000, &bLedsRow2_l, &uiVarEntries, &ObdSize,
 340                              0x02);
 341         if (EplRet != kEplSuccessful) {
 342                 goto Exit;
 343         }
 344
 345         ObdSize = sizeof(bSpeedSelect_l);
 346         uiVarEntries = 1;
 347         EplRet =
 348             EplApiLinkObject(0x2000, &bSpeedSelect_l, &uiVarEntries, &ObdSize,
 349                              0x03);
 350         if (EplRet != kEplSuccessful) {
 351                 goto Exit;
 352         }
 353
 354         ObdSize = sizeof(bSpeedSelectOld_l);
 355         uiVarEntries = 1;
 356         EplRet =
 357             EplApiLinkObject(0x2000, &bSpeedSelectOld_l, &uiVarEntries,
 358                              &ObdSize, 0x04);
 359         if (EplRet != kEplSuccessful) {
 360                 goto Exit;
 361         }
 362
 363         ObdSize = sizeof(abSelect_l[0]);
 364         uiVarEntries = sizeof(abSelect_l);
 365         EplRet =
 366             EplApiLinkObject(0x2200, &abSelect_l[0], &uiVarEntries, &ObdSize,
 367                              0x01);
 368         if (EplRet != kEplSuccessful) {
 369                 goto Exit;
 370         }
 371 #endif
 372
 373         // link a DOMAIN to object 0x6100, but do not exit, if it is missing
 374         ObdSize = sizeof(abDomain_l);
 375         uiVarEntries = 1;
 376         EplRet =
 377             EplApiLinkObject(0x6100, &abDomain_l, &uiVarEntries, &ObdSize,
 378                              0x00);
 379         if (EplRet != kEplSuccessful) {
 380                 printk("EplApiLinkObject(0x6100): returns 0x%X\n", EplRet);
 381         }
 382         // reset old process variables
 383         bVarOut1Old_l = 0;
 384         bSpeedSelectOld_l = 0;
 385         dwMode_l = APP_DEFAULT_MODE;
 386         iMaxCycleCount_l = DEFAULT_MAX_CYCLE_COUNT;
 387
 388         // configure IP address of virtual network interface
 389         // for TCP/IP communication over the POWERLINK network
 390         sprintf(sBuffer, "%u.%u.%u.%u",
 391                 (EplApiInitParam.m_dwIpAddress >> 24),
 392                 ((EplApiInitParam.m_dwIpAddress >> 16) & 0xFF),
 393                 ((EplApiInitParam.m_dwIpAddress >> 8) & 0xFF),
 394                 (EplApiInitParam.m_dwIpAddress & 0xFF));
 395         /* set up a minimal environment */
 396         iRet = 0;
 397         envp[iRet++] = "HOME=/";
 398         envp[iRet++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
 399         envp[iRet] = NULL;
 400
 401         /* set up the argument list */
 402         iRet = 0;
 403         argv[iRet++] = "/sbin/ifconfig";
 404         argv[iRet++] = IF_ETH;
 405         argv[iRet++] = sBuffer;
 406         argv[iRet] = NULL;
 407
 408         /* call ifconfig to configure the virtual network interface */
 409         iRet = call_usermodehelper(argv[0], argv, envp, 1);
 410         printk("ifconfig %s %s returned %d\n", argv[1], argv[2], iRet);
 411
 412         // start the NMT state machine
 413         EplRet = EplApiExecNmtCommand(kEplNmtEventSwReset);
 414         atomic_set(&AtomicShutdown_g, FALSE);
 415
 416       Exit:
 417         printk("EplLinInit(): returns 0x%X\n", EplRet);
 418         return EplRet;
 419 }
 420
 421 static void __exit EplLinExit(void)
 422 {
 423         tEplKernel EplRet;
 424
 425         // halt the NMT state machine
 426         // so the processing of POWERLINK frames stops
 427         EplRet = EplApiExecNmtCommand(kEplNmtEventSwitchOff);
 428
 429         // wait until NMT state machine is shut down
 430         wait_event_interruptible(WaitQueueShutdown_g,
 431                                  (atomic_read(&AtomicShutdown_g) == TRUE));
 432 /*    if ((iErr != 0) || (atomic_read(&AtomicShutdown_g) == EVENT_STATE_IOCTL))
 433     {   // waiting was interrupted by signal or application called wrong function
 434         EplRet = kEplShutdown;
 435     }*/
 436         // delete instance for all modules
 437         EplRet = EplApiShutdown();
 438         printk("EplApiShutdown():  0x%X\n", EplRet);
 439
 440         // deinitialize proc fs
 441         EplRet = EplLinProcFree();
 442         printk("EplLinProcFree():        0x%X\n", EplRet);
 443
 444 }
 445 #endif
 446 //=========================================================================//
 447 //                                                                         //
 448 //          P R I V A T E   F U N C T I O N S                              //
 449 //                                                                         //
 450 //=========================================================================//
 451
 452 //---------------------------------------------------------------------------
 453 //
 454 // Function:    AppCbEvent
 455 //
 456 // Description: event callback function called by EPL API layer within
 457 //              user part (low priority).
 458 //
 459 // Parameters:  EventType_p     = event type
 460 //              pEventArg_p     = pointer to union, which describes
 461 //                                the event in detail
 462 //              pUserArg_p      = user specific argument
 463 //
 464 // Returns:     tEplKernel      = error code,
 465 //                                kEplSuccessful = no error
 466 //                                kEplReject = reject further processing
 467 //                                otherwise = post error event to API layer
 468 //
 469 // State:
 470 //
 471 //---------------------------------------------------------------------------
 472
 473 tEplKernel AppCbEvent(tEplApiEventType EventType_p,     // IN: event type (enum)
 474                       tEplApiEventArg *pEventArg_p,     // IN: event argument (union)
 475                       void *pUserArg_p)
 476 {
 477         tEplKernel EplRet = kEplSuccessful;
 478
 479         // check if NMT_GS_OFF is reached
 480         switch (EventType_p) {
 481         case kEplApiEventNmtStateChange:
 482                 {
 483                         switch (pEventArg_p->m_NmtStateChange.m_NewNmtState) {
 484                         case kEplNmtGsOff:
 485                                 {       // NMT state machine was shut down,
 486                                         // because of user signal (CTRL-C) or critical EPL stack error
 487                                         // -> also shut down EplApiProcess() and main()
 488                                         EplRet = kEplShutdown;
 489
 490                                         printk
 491                                             ("AppCbEvent(kEplNmtGsOff) originating event = 0x%X\n",
 492                                              pEventArg_p->m_NmtStateChange.
 493                                              m_NmtEvent);
 494
 495                                         // wake up EplLinExit()
 496                                         atomic_set(&AtomicShutdown_g, TRUE);
 497                                         wake_up_interruptible
 498                                             (&WaitQueueShutdown_g);
 499                                         break;
 500                                 }
 501
 502                         case kEplNmtGsResetCommunication:
 503                                 {
 504                                         u32 dwBuffer;
 505
 506                                         // configure OD for MN in state ResetComm after reseting the OD
 507                                         // TODO: setup your own network configuration here
 508                                         dwBuffer = (EPL_NODEASSIGN_NODE_IS_CN | EPL_NODEASSIGN_NODE_EXISTS);    // 0x00000003L
 509                                         EplRet =
 510                                             EplApiWriteLocalObject(0x1F81, 0x01,
 511                                                                    &dwBuffer,
 512                                                                    4);
 513                                         EplRet =
 514                                             EplApiWriteLocalObject(0x1F81, 0x02,
 515                                                                    &dwBuffer,
 516                                                                    4);
 517                                         EplRet =
 518                                             EplApiWriteLocalObject(0x1F81, 0x03,
 519                                                                    &dwBuffer,
 520                                                                    4);
 521                                         EplRet =
 522                                             EplApiWriteLocalObject(0x1F81, 0x04,
 523                                                                    &dwBuffer,
 524                                                                    4);
 525                                         EplRet =
 526                                             EplApiWriteLocalObject(0x1F81, 0x05,
 527                                                                    &dwBuffer,
 528                                                                    4);
 529                                         EplRet =
 530                                             EplApiWriteLocalObject(0x1F81, 0x06,
 531                                                                    &dwBuffer,
 532                                                                    4);
 533                                         EplRet =
 534                                             EplApiWriteLocalObject(0x1F81, 0x07,
 535                                                                    &dwBuffer,
 536                                                                    4);
 537                                         EplRet =
 538                                             EplApiWriteLocalObject(0x1F81, 0x08,
 539                                                                    &dwBuffer,
 540                                                                    4);
 541                                         EplRet =
 542                                             EplApiWriteLocalObject(0x1F81, 0x20,
 543                                                                    &dwBuffer,
 544                                                                    4);
 545                                         EplRet =
 546                                             EplApiWriteLocalObject(0x1F81, 0xFE,
 547                                                                    &dwBuffer,
 548                                                                    4);
 549                                         EplRet =
 550                                             EplApiWriteLocalObject(0x1F81, 0x6E,
 551                                                                    &dwBuffer,
 552                                                                    4);
 553
 554 //                    dwBuffer |= EPL_NODEASSIGN_MANDATORY_CN;    // 0x0000000BL
 555 //                    EplRet = EplApiWriteLocalObject(0x1F81, 0x6E, &dwBuffer, 4);
 556                                         dwBuffer = (EPL_NODEASSIGN_MN_PRES | EPL_NODEASSIGN_NODE_EXISTS);       // 0x00010001L
 557                                         EplRet =
 558                                             EplApiWriteLocalObject(0x1F81, 0xF0,
 559                                                                    &dwBuffer,
 560                                                                    4);
 561
 562                                         // continue
 563                                 }
 564
 565                         case kEplNmtGsResetConfiguration:
 566                                 {
 567                                         unsigned int uiSize;
 568
 569                                         // fetch object 0x1006 NMT_CycleLen_U32 from local OD (in little endian byte order)
 570                                         // for configuration of remote CN
 571                                         uiSize = 4;
 572                                         EplRet =
 573                                             EplApiReadObject(NULL, 0, 0x1006,
 574                                                              0x00,
 575                                                              &dw_le_CycleLen_g,
 576                                                              &uiSize,
 577                                                              kEplSdoTypeAsnd,
 578                                                              NULL);
 579                                         if (EplRet != kEplSuccessful) { // local OD access failed
 580                                                 break;
 581                                         }
 582                                         // continue
 583                                 }
 584
 585                         case kEplNmtMsPreOperational1:
 586                                 {
 587                                         printk
 588                                             ("AppCbEvent(0x%X) originating event = 0x%X\n",
 589                                              pEventArg_p->m_NmtStateChange.
 590                                              m_NewNmtState,
 591                                              pEventArg_p->m_NmtStateChange.
 592                                              m_NmtEvent);
 593
 594                                         // continue
 595                                 }
 596
 597                         case kEplNmtGsInitialising:
 598                         case kEplNmtGsResetApplication:
 599                         case kEplNmtMsNotActive:
 600                         case kEplNmtCsNotActive:
 601                         case kEplNmtCsPreOperational1:
 602                                 {
 603                                         break;
 604                                 }
 605
 606                         case kEplNmtCsOperational:
 607                         case kEplNmtMsOperational:
 608                                 {
 609                                         break;
 610                                 }
 611
 612                         default:
 613                                 {
 614                                         break;
 615                                 }
 616                         }
 617
 618 /*
 619             switch (pEventArg_p->m_NmtStateChange.m_NmtEvent)
 620             {
 621                 case kEplNmtEventSwReset:
 622                 case kEplNmtEventResetNode:
 623                 case kEplNmtEventResetCom:
 624                 case kEplNmtEventResetConfig:
 625                 case kEplNmtEventInternComError:
 626                 case kEplNmtEventNmtCycleError:
 627                 {
 628                     printk("AppCbEvent(0x%X) originating event = 0x%X\n",
 629                            pEventArg_p->m_NmtStateChange.m_NewNmtState,
 630                            pEventArg_p->m_NmtStateChange.m_NmtEvent);
 631                     break;
 632                 }
 633
 634                 default:
 635                 {
 636                     break;
 637                 }
 638             }
 639 */
 640                         break;
 641                 }
 642
 643         case kEplApiEventCriticalError:
 644         case kEplApiEventWarning:
 645                 {               // error or warning occured within the stack or the application
 646                         // on error the API layer stops the NMT state machine
 647
 648                         printk
 649                             ("AppCbEvent(Err/Warn): Source=%02X EplError=0x%03X",
 650                              pEventArg_p->m_InternalError.m_EventSource,
 651                              pEventArg_p->m_InternalError.m_EplError);
 652                         // check additional argument
 653                         switch (pEventArg_p->m_InternalError.m_EventSource) {
 654                         case kEplEventSourceEventk:
 655                         case kEplEventSourceEventu:
 656                                 {       // error occured within event processing
 657                                         // either in kernel or in user part
 658                                         printk(" OrgSource=%02X\n",
 659                                                pEventArg_p->m_InternalError.
 660                                                m_Arg.m_EventSource);
 661                                         break;
 662                                 }
 663
 664                         case kEplEventSourceDllk:
 665                                 {       // error occured within the data link layer (e.g. interrupt processing)
 666                                         // the u32 argument contains the DLL state and the NMT event
 667                                         printk(" val=%X\n",
 668                                                pEventArg_p->m_InternalError.
 669                                                m_Arg.m_dwArg);
 670                                         break;
 671                                 }
 672
 673                         default:
 674                                 {
 675                                         printk("\n");
 676                                         break;
 677                                 }
 678                         }
 679                         break;
 680                 }
 681
 682         case kEplApiEventNode:
 683                 {
 684 //            printk("AppCbEvent(Node): Source=%02X EplError=0x%03X", pEventArg_p->m_InternalError.m_EventSource, pEventArg_p->m_InternalError.m_EplError);
 685                         // check additional argument
 686                         switch (pEventArg_p->m_Node.m_NodeEvent) {
 687                         case kEplNmtNodeEventCheckConf:
 688                                 {
 689                                         tEplSdoComConHdl SdoComConHdl;
 690                                         // update object 0x1006 on CN
 691                                         EplRet =
 692                                             EplApiWriteObject(&SdoComConHdl,
 693                                                               pEventArg_p->
 694                                                               m_Node.m_uiNodeId,
 695                                                               0x1006, 0x00,
 696                                                               &dw_le_CycleLen_g,
 697                                                               4,
 698                                                               kEplSdoTypeAsnd,
 699                                                               NULL);
 700                                         if (EplRet == kEplApiTaskDeferred) {    // SDO transfer started
 701                                                 EplRet = kEplReject;
 702                                         } else if (EplRet == kEplSuccessful) {  // local OD access (should not occur)
 703                                                 printk
 704                                                     ("AppCbEvent(Node) write to local OD\n");
 705                                         } else {        // error occured
 706                                                 TGT_DBG_SIGNAL_TRACE_POINT(1);
 707
 708                                                 EplRet =
 709                                                     EplApiFreeSdoChannel
 710                                                     (SdoComConHdl);
 711                                                 SdoComConHdl = 0;
 712
 713                                                 EplRet =
 714                                                     EplApiWriteObject
 715                                                     (&SdoComConHdl,
 716                                                      pEventArg_p->m_Node.
 717                                                      m_uiNodeId, 0x1006, 0x00,
 718                                                      &dw_le_CycleLen_g, 4,
 719                                                      kEplSdoTypeAsnd, NULL);
 720                                                 if (EplRet == kEplApiTaskDeferred) {    // SDO transfer started
 721                                                         EplRet = kEplReject;
 722                                                 } else {
 723                                                         printk
 724                                                             ("AppCbEvent(Node): EplApiWriteObject() returned 0x%02X\n",
 725                                                              EplRet);
 726                                                 }
 727                                         }
 728
 729                                         break;
 730                                 }
 731
 732                         default:
 733                                 {
 734                                         break;
 735                                 }
 736                         }
 737                         break;
 738                 }
 739
 740         case kEplApiEventSdo:
 741                 {               // SDO transfer finished
 742                         EplRet =
 743                             EplApiFreeSdoChannel(pEventArg_p->m_Sdo.
 744                                                  m_SdoComConHdl);
 745                         if (EplRet != kEplSuccessful) {
 746                                 break;
 747                         }
 748 #if(((EPL_MODULE_INTEGRATION) & (EPL_MODULE_NMT_MN)) != 0)
 749                         if (pEventArg_p->m_Sdo.m_SdoComConState == kEplSdoComTransferFinished) {        // continue boot-up of CN with NMT command Reset Configuration
 750                                 EplRet =
 751                                     EplApiMnTriggerStateChange(pEventArg_p->
 752                                                                m_Sdo.m_uiNodeId,
 753                                                                kEplNmtNodeCommandConfReset);
 754                         } else {        // indicate configuration error CN
 755                                 EplRet =
 756                                     EplApiMnTriggerStateChange(pEventArg_p->
 757                                                                m_Sdo.m_uiNodeId,
 758                                                                kEplNmtNodeCommandConfErr);
 759                         }
 760 #endif
 761
 762                         break;
 763                 }
 764
 765         default:
 766                 break;
 767         }
 768
 769         return EplRet;
 770 }
 771
 772 //---------------------------------------------------------------------------
 773 //
 774 // Function:    AppCbSync
 775 //
 776 // Description: sync event callback function called by event module within
 777 //              kernel part (high priority).
 778 //              This function sets the outputs, reads the inputs and runs
 779 //              the control loop.
 780 //
 781 // Parameters:  void
 782 //
 783 // Returns:     tEplKernel      = error code,
 784 //                                kEplSuccessful = no error
 785 //                                otherwise = post error event to API layer
 786 //
 787 // State:
 788 //
 789 //---------------------------------------------------------------------------
 790
 791 tEplKernel AppCbSync(void)
 792 {
 793         tEplKernel EplRet = kEplSuccessful;
 794
 795         if (bVarOut1Old_l != bVarOut1_l) {      // output variable has changed
 796                 bVarOut1Old_l = bVarOut1_l;
 797                 // set LEDs
 798
 799 //        printk("bVarIn = 0x%02X bVarOut = 0x%02X\n", (u16) bVarIn_l, (u16) bVarOut_l);
 800         }
 801         if (uiNodeId_g != EPL_C_ADR_MN_DEF_NODE_ID) {
 802                 bVarIn1_l++;
 803         }
 804
 805         if (uiNodeId_g == EPL_C_ADR_MN_DEF_NODE_ID) {   // we are the master and must run the control loop
 806
 807                 // collect inputs from CNs and own input
 808                 bSpeedSelect_l = (bVarIn1_l | abSelect_l[0]) & 0x07;
 809
 810                 bModeSelect_l = abSelect_l[1] | abSelect_l[2];
 811
 812                 if ((bModeSelect_l & APP_MODE_MASK) != 0) {
 813                         dwMode_l = bModeSelect_l & APP_MODE_MASK;
 814                 }
 815
 816                 iCurCycleCount_l--;
 817
 818                 if (iCurCycleCount_l <= 0) {
 819                         if ((dwMode_l & 0x01) != 0) {   // fill-up
 820                                 if (iToggle) {
 821                                         if ((dwLeds_l & APP_DOUBLE_LED_MASK) ==
 822                                             0x00) {
 823                                                 dwLeds_l = 0x01;
 824                                         } else {
 825                                                 dwLeds_l <<= 1;
 826                                                 dwLeds_l++;
 827                                                 if (dwLeds_l >=
 828                                                     APP_DOUBLE_LED_MASK) {
 829                                                         iToggle = 0;
 830                                                 }
 831                                         }
 832                                 } else {
 833                                         dwLeds_l <<= 1;
 834                                         if ((dwLeds_l & APP_DOUBLE_LED_MASK) ==
 835                                             0x00) {
 836                                                 iToggle = 1;
 837                                         }
 838                                 }
 839                                 bLedsRow1_l =
 840                                     (unsigned char)(dwLeds_l & APP_LED_MASK);
 841                                 bLedsRow2_l =
 842                                     (unsigned char)((dwLeds_l >> APP_LED_COUNT)
 843                                                     & APP_LED_MASK);
 844                         }
 845
 846                         else if ((dwMode_l & 0x02) != 0) {      // running light forward
 847                                 dwLeds_l <<= 1;
 848                                 if ((dwLeds_l > APP_DOUBLE_LED_MASK)
 849                                     || (dwLeds_l == 0x00000000L)) {
 850                                         dwLeds_l = 0x01;
 851                                 }
 852                                 bLedsRow1_l =
 853                                     (unsigned char)(dwLeds_l & APP_LED_MASK);
 854                                 bLedsRow2_l =
 855                                     (unsigned char)((dwLeds_l >> APP_LED_COUNT)
 856                                                     & APP_LED_MASK);
 857                         }
 858
 859                         else if ((dwMode_l & 0x04) != 0) {      // running light backward
 860                                 dwLeds_l >>= 1;
 861                                 if ((dwLeds_l > APP_DOUBLE_LED_MASK)
 862                                     || (dwLeds_l == 0x00000000L)) {
 863                                         dwLeds_l = 1 << (APP_LED_COUNT * 2);
 864                                 }
 865                                 bLedsRow1_l =
 866                                     (unsigned char)(dwLeds_l & APP_LED_MASK);
 867                                 bLedsRow2_l =
 868                                     (unsigned char)((dwLeds_l >> APP_LED_COUNT)
 869                                                     & APP_LED_MASK);
 870                         }
 871
 872                         else if ((dwMode_l & 0x08) != 0) {      // Knightrider
 873                                 if (bLedsRow1_l == 0x00) {
 874                                         bLedsRow1_l = 0x01;
 875                                         iToggle = 1;
 876                                 } else if (iToggle) {
 877                                         bLedsRow1_l <<= 1;
 878                                         if (bLedsRow1_l >=
 879                                             (1 << (APP_LED_COUNT - 1))) {
 880                                                 iToggle = 0;
 881                                         }
 882                                 } else {
 883                                         bLedsRow1_l >>= 1;
 884                                         if (bLedsRow1_l <= 0x01) {
 885                                                 iToggle = 1;
 886                                         }
 887                                 }
 888                                 bLedsRow2_l = bLedsRow1_l;
 889                         }
 890
 891                         else if ((dwMode_l & 0x10) != 0) {      // Knightrider
 892                                 if ((bLedsRow1_l == 0x00)
 893                                     || (bLedsRow2_l == 0x00)
 894                                     || ((bLedsRow2_l & ~APP_LED_MASK) != 0)) {
 895                                         bLedsRow1_l = 0x01;
 896                                         bLedsRow2_l =
 897                                             (1 << (APP_LED_COUNT - 1));
 898                                         iToggle = 1;
 899                                 } else if (iToggle) {
 900                                         bLedsRow1_l <<= 1;
 901                                         bLedsRow2_l >>= 1;
 902                                         if (bLedsRow1_l >=
 903                                             (1 << (APP_LED_COUNT - 1))) {
 904                                                 iToggle = 0;
 905                                         }
 906                                 } else {
 907                                         bLedsRow1_l >>= 1;
 908                                         bLedsRow2_l <<= 1;
 909                                         if (bLedsRow1_l <= 0x01) {
 910                                                 iToggle = 1;
 911                                         }
 912                                 }
 913                         }
 914                         // set own output
 915                         bVarOut1_l = bLedsRow1_l;
 916 //            bVarOut1_l = (bLedsRow1_l & 0x03) | (bLedsRow2_l << 2);
 917
 918                         // restart cycle counter
 919                         iCurCycleCount_l = iMaxCycleCount_l;
 920                 }
 921
 922                 if (bSpeedSelectOld_l == 0) {
 923                         if ((bSpeedSelect_l & 0x01) != 0) {
 924                                 if (iMaxCycleCount_l < 200) {
 925                                         iMaxCycleCount_l++;
 926                                 }
 927                                 bSpeedSelectOld_l = bSpeedSelect_l;
 928                         } else if ((bSpeedSelect_l & 0x02) != 0) {
 929                                 if (iMaxCycleCount_l > 1) {
 930                                         iMaxCycleCount_l--;
 931                                 }
 932                                 bSpeedSelectOld_l = bSpeedSelect_l;
 933                         } else if ((bSpeedSelect_l & 0x04) != 0) {
 934                                 iMaxCycleCount_l = DEFAULT_MAX_CYCLE_COUNT;
 935                                 bSpeedSelectOld_l = bSpeedSelect_l;
 936                         }
 937                 } else if (bSpeedSelect_l == 0) {
 938                         bSpeedSelectOld_l = 0;
 939                 }
 940         }
 941
 942         TGT_DBG_SIGNAL_TRACE_POINT(1);
 943
 944         return EplRet;
 945 }
 946
 947 // EOF