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/****************************************************************************
(c) SYSTEC electronic GmbH, D-07973 Greiz, August-Bebel-Str. 29
www.systec-electronic.com
Project: openPOWERLINK
Description: source file for NMT-CN-Userspace-Module
License:
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
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notice, this list of conditions and the following disclaimer in the
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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POSSIBILITY OF SUCH DAMAGE.
Severability Clause:
If a provision of this License is or becomes illegal, invalid or
unenforceable in any jurisdiction, that shall not affect:
1. the validity or enforceability in that jurisdiction of any other
provision of this License; or
2. the validity or enforceability in other jurisdictions of that or
any other provision of this License.
-------------------------------------------------------------------------
$RCSfile: EplNmtCnu.c,v $
$Author: D.Krueger $
$Revision: 1.6 $ $Date: 2008/10/17 15:32:32 $
$State: Exp $
Build Environment:
GCC V3.4
-------------------------------------------------------------------------
Revision History:
2006/06/09 k.t.: start of the implementation
****************************************************************************/
#include "EplInc.h"
#include "user/EplNmtCnu.h"
#include "user/EplDlluCal.h"
#if(((EPL_MODULE_INTEGRATION) & (EPL_MODULE_NMT_CN)) != 0)
/***************************************************************************/
/* */
/* */
/* G L O B A L D E F I N I T I O N S */
/* */
/* */
/***************************************************************************/
//---------------------------------------------------------------------------
// const defines
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
// local types
//---------------------------------------------------------------------------
typedef struct {
unsigned int m_uiNodeId;
tEplNmtuCheckEventCallback m_pfnCheckEventCb;
} tEplNmtCnuInstance;
//---------------------------------------------------------------------------
// modul globale vars
//---------------------------------------------------------------------------
static tEplNmtCnuInstance EplNmtCnuInstance_g;
//---------------------------------------------------------------------------
// local function prototypes
//---------------------------------------------------------------------------
static tEplNmtCommand EplNmtCnuGetNmtCommand(tEplFrameInfo * pFrameInfo_p);
static BOOL EplNmtCnuNodeIdList(BYTE * pbNmtCommandDate_p);
static tEplKernel PUBLIC EplNmtCnuCommandCb(tEplFrameInfo * pFrameInfo_p);
//=========================================================================//
// //
// P U B L I C F U N C T I O N S //
// //
//=========================================================================//
//---------------------------------------------------------------------------
//
// Function: EplNmtCnuInit
//
// Description: init the first instance of the module
//
//
//
// Parameters: uiNodeId_p = NodeId of the local node
//
//
// Returns: tEplKernel = errorcode
//
//
// State:
//
//---------------------------------------------------------------------------
EPLDLLEXPORT tEplKernel PUBLIC EplNmtCnuInit(unsigned int uiNodeId_p)
{
tEplKernel Ret;
Ret = EplNmtCnuAddInstance(uiNodeId_p);
return Ret;
}
//---------------------------------------------------------------------------
//
// Function: EplNmtCnuAddInstance
//
// Description: init the add new instance of the module
//
//
//
// Parameters: uiNodeId_p = NodeId of the local node
//
//
// Returns: tEplKernel = errorcode
//
//
// State:
//
//---------------------------------------------------------------------------
EPLDLLEXPORT tEplKernel PUBLIC EplNmtCnuAddInstance(unsigned int uiNodeId_p)
{
tEplKernel Ret;
Ret = kEplSuccessful;
// reset instance structure
EPL_MEMSET(&EplNmtCnuInstance_g, 0, sizeof(EplNmtCnuInstance_g));
// save nodeid
EplNmtCnuInstance_g.m_uiNodeId = uiNodeId_p;
// register callback-function for NMT-commands
#if(((EPL_MODULE_INTEGRATION) & (EPL_MODULE_DLLU)) != 0)
Ret = EplDlluCalRegAsndService(kEplDllAsndNmtCommand,
EplNmtCnuCommandCb,
kEplDllAsndFilterLocal);
#endif
return Ret;
}
//---------------------------------------------------------------------------
//
// Function: EplNmtCnuDelInstance
//
// Description: delte instance of the module
//
//
//
// Parameters:
//
//
// Returns: tEplKernel = errorcode
//
//
// State:
//
//---------------------------------------------------------------------------
EPLDLLEXPORT tEplKernel PUBLIC EplNmtCnuDelInstance()
{
tEplKernel Ret;
Ret = kEplSuccessful;
#if(((EPL_MODULE_INTEGRATION) & (EPL_MODULE_DLLU)) != 0)
// deregister callback function from DLL
Ret = EplDlluCalRegAsndService(kEplDllAsndNmtCommand,
NULL, kEplDllAsndFilterNone);
#endif
return Ret;
}
//---------------------------------------------------------------------------
//
// Function: EplNmtCnuSendNmtRequest
//
// Description: Send an NMT-Request to the MN
//
//
//
// Parameters: uiNodeId_p = NodeId of the local node
// NmtCommand_p = requested NMT-Command
//
//
// Returns: tEplKernel = errorcode
//
//
// State:
//
//---------------------------------------------------------------------------
EPLDLLEXPORT tEplKernel PUBLIC EplNmtCnuSendNmtRequest(unsigned int uiNodeId_p,
tEplNmtCommand
NmtCommand_p)
{
tEplKernel Ret;
tEplFrameInfo NmtRequestFrameInfo;
tEplFrame NmtRequestFrame;
Ret = kEplSuccessful;
// build frame
EPL_MEMSET(&NmtRequestFrame.m_be_abDstMac[0], 0x00, sizeof(NmtRequestFrame.m_be_abDstMac)); // set by DLL
EPL_MEMSET(&NmtRequestFrame.m_be_abSrcMac[0], 0x00, sizeof(NmtRequestFrame.m_be_abSrcMac)); // set by DLL
AmiSetWordToBe(&NmtRequestFrame.m_be_wEtherType,
EPL_C_DLL_ETHERTYPE_EPL);
AmiSetByteToLe(&NmtRequestFrame.m_le_bDstNodeId, (BYTE) EPL_C_ADR_MN_DEF_NODE_ID); // node id of the MN
AmiSetByteToLe(&NmtRequestFrame.m_le_bMessageType,
(BYTE) kEplMsgTypeAsnd);
AmiSetByteToLe(&NmtRequestFrame.m_Data.m_Asnd.m_le_bServiceId,
(BYTE) kEplDllAsndNmtRequest);
AmiSetByteToLe(&NmtRequestFrame.m_Data.m_Asnd.m_Payload.
m_NmtRequestService.m_le_bNmtCommandId,
(BYTE) NmtCommand_p);
AmiSetByteToLe(&NmtRequestFrame.m_Data.m_Asnd.m_Payload.m_NmtRequestService.m_le_bTargetNodeId, (BYTE) uiNodeId_p); // target for the nmt command
EPL_MEMSET(&NmtRequestFrame.m_Data.m_Asnd.m_Payload.m_NmtRequestService.
m_le_abNmtCommandData[0], 0x00,
sizeof(NmtRequestFrame.m_Data.m_Asnd.m_Payload.
m_NmtRequestService.m_le_abNmtCommandData));
// build info-structure
NmtRequestFrameInfo.m_NetTime.m_dwNanoSec = 0;
NmtRequestFrameInfo.m_NetTime.m_dwSec = 0;
NmtRequestFrameInfo.m_pFrame = &NmtRequestFrame;
NmtRequestFrameInfo.m_uiFrameSize = EPL_C_DLL_MINSIZE_NMTREQ; // sizeof(NmtRequestFrame);
// send NMT-Request
#if(((EPL_MODULE_INTEGRATION) & (EPL_MODULE_DLLU)) != 0)
Ret = EplDlluCalAsyncSend(&NmtRequestFrameInfo, // pointer to frameinfo
kEplDllAsyncReqPrioNmt); // priority
#endif
return Ret;
}
//---------------------------------------------------------------------------
//
// Function: EplNmtCnuRegisterStateChangeCb
//
// Description: register Callback-function go get informed about a
// NMT-Change-State-Event
//
//
//
// Parameters: pfnEplNmtStateChangeCb_p = functionpointer
//
//
// Returns: tEplKernel = errorcode
//
//
// State:
//
//---------------------------------------------------------------------------
EPLDLLEXPORT tEplKernel PUBLIC
EplNmtCnuRegisterCheckEventCb(tEplNmtuCheckEventCallback
pfnEplNmtCheckEventCb_p)
{
tEplKernel Ret;
Ret = kEplSuccessful;
// save callback-function in modul global var
EplNmtCnuInstance_g.m_pfnCheckEventCb = pfnEplNmtCheckEventCb_p;
return Ret;
}
//=========================================================================//
// //
// P R I V A T E F U N C T I O N S //
// //
//=========================================================================//
//---------------------------------------------------------------------------
//
// Function: EplNmtCnuCommandCb
//
// Description: callback funktion for NMT-Commands
//
//
//
// Parameters: pFrameInfo_p = Frame with the NMT-Commando
//
//
// Returns: tEplKernel = errorcode
//
//
// State:
//
//---------------------------------------------------------------------------
static tEplKernel PUBLIC EplNmtCnuCommandCb(tEplFrameInfo * pFrameInfo_p)
{
tEplKernel Ret = kEplSuccessful;
tEplNmtCommand NmtCommand;
BOOL fNodeIdInList;
tEplNmtEvent NmtEvent = kEplNmtEventNoEvent;
if (pFrameInfo_p == NULL) {
Ret = kEplNmtInvalidFramePointer;
goto Exit;
}
NmtCommand = EplNmtCnuGetNmtCommand(pFrameInfo_p);
// check NMT-Command
switch (NmtCommand) {
//------------------------------------------------------------------------
// plain NMT state commands
case kEplNmtCmdStartNode:
{ // send NMT-Event to state maschine kEplNmtEventStartNode
NmtEvent = kEplNmtEventStartNode;
break;
}
case kEplNmtCmdStopNode:
{ // send NMT-Event to state maschine kEplNmtEventStopNode
NmtEvent = kEplNmtEventStopNode;
break;
}
case kEplNmtCmdEnterPreOperational2:
{ // send NMT-Event to state maschine kEplNmtEventEnterPreOperational2
NmtEvent = kEplNmtEventEnterPreOperational2;
break;
}
case kEplNmtCmdEnableReadyToOperate:
{ // send NMT-Event to state maschine kEplNmtEventEnableReadyToOperate
NmtEvent = kEplNmtEventEnableReadyToOperate;
break;
}
case kEplNmtCmdResetNode:
{ // send NMT-Event to state maschine kEplNmtEventResetNode
NmtEvent = kEplNmtEventResetNode;
break;
}
case kEplNmtCmdResetCommunication:
{ // send NMT-Event to state maschine kEplNmtEventResetCom
NmtEvent = kEplNmtEventResetCom;
break;
}
case kEplNmtCmdResetConfiguration:
{ // send NMT-Event to state maschine kEplNmtEventResetConfig
NmtEvent = kEplNmtEventResetConfig;
break;
}
case kEplNmtCmdSwReset:
{ // send NMT-Event to state maschine kEplNmtEventSwReset
NmtEvent = kEplNmtEventSwReset;
break;
}
//------------------------------------------------------------------------
// extended NMT state commands
case kEplNmtCmdStartNodeEx:
{
// check if own nodeid is in EPL node list
fNodeIdInList =
EplNmtCnuNodeIdList(&
(pFrameInfo_p->m_pFrame->m_Data.
m_Asnd.m_Payload.
m_NmtCommandService.
m_le_abNmtCommandData[0]));
if (fNodeIdInList != FALSE) { // own nodeid in list
// send event to process command
NmtEvent = kEplNmtEventStartNode;
}
break;
}
case kEplNmtCmdStopNodeEx:
{ // check if own nodeid is in EPL node list
fNodeIdInList =
EplNmtCnuNodeIdList(&pFrameInfo_p->m_pFrame->m_Data.
m_Asnd.m_Payload.
m_NmtCommandService.
m_le_abNmtCommandData[0]);
if (fNodeIdInList != FALSE) { // own nodeid in list
// send event to process command
NmtEvent = kEplNmtEventStopNode;
}
break;
}
case kEplNmtCmdEnterPreOperational2Ex:
{ // check if own nodeid is in EPL node list
fNodeIdInList =
EplNmtCnuNodeIdList(&pFrameInfo_p->m_pFrame->m_Data.
m_Asnd.m_Payload.
m_NmtCommandService.
m_le_abNmtCommandData[0]);
if (fNodeIdInList != FALSE) { // own nodeid in list
// send event to process command
NmtEvent = kEplNmtEventEnterPreOperational2;
}
break;
}
case kEplNmtCmdEnableReadyToOperateEx:
{ // check if own nodeid is in EPL node list
fNodeIdInList =
EplNmtCnuNodeIdList(&pFrameInfo_p->m_pFrame->m_Data.
m_Asnd.m_Payload.
m_NmtCommandService.
m_le_abNmtCommandData[0]);
if (fNodeIdInList != FALSE) { // own nodeid in list
// send event to process command
NmtEvent = kEplNmtEventEnableReadyToOperate;
}
break;
}
case kEplNmtCmdResetNodeEx:
{ // check if own nodeid is in EPL node list
fNodeIdInList =
EplNmtCnuNodeIdList(&pFrameInfo_p->m_pFrame->m_Data.
m_Asnd.m_Payload.
m_NmtCommandService.
m_le_abNmtCommandData[0]);
if (fNodeIdInList != FALSE) { // own nodeid in list
// send event to process command
NmtEvent = kEplNmtEventResetNode;
}
break;
}
case kEplNmtCmdResetCommunicationEx:
{ // check if own nodeid is in EPL node list
fNodeIdInList =
EplNmtCnuNodeIdList(&pFrameInfo_p->m_pFrame->m_Data.
m_Asnd.m_Payload.
m_NmtCommandService.
m_le_abNmtCommandData[0]);
if (fNodeIdInList != FALSE) { // own nodeid in list
// send event to process command
NmtEvent = kEplNmtEventResetCom;
}
break;
}
case kEplNmtCmdResetConfigurationEx:
{ // check if own nodeid is in EPL node list
fNodeIdInList =
EplNmtCnuNodeIdList(&pFrameInfo_p->m_pFrame->m_Data.
m_Asnd.m_Payload.
m_NmtCommandService.
m_le_abNmtCommandData[0]);
if (fNodeIdInList != FALSE) { // own nodeid in list
// send event to process command
NmtEvent = kEplNmtEventResetConfig;
}
break;
}
case kEplNmtCmdSwResetEx:
{ // check if own nodeid is in EPL node list
fNodeIdInList =
EplNmtCnuNodeIdList(&pFrameInfo_p->m_pFrame->m_Data.
m_Asnd.m_Payload.
m_NmtCommandService.
m_le_abNmtCommandData[0]);
if (fNodeIdInList != FALSE) { // own nodeid in list
// send event to process command
NmtEvent = kEplNmtEventSwReset;
}
break;
}
//------------------------------------------------------------------------
// NMT managing commands
// TODO: add functions to process managing command (optional)
case kEplNmtCmdNetHostNameSet:
{
break;
}
case kEplNmtCmdFlushArpEntry:
{
break;
}
//------------------------------------------------------------------------
// NMT info services
// TODO: forward event with infos to the application (optional)
case kEplNmtCmdPublishConfiguredCN:
{
break;
}
case kEplNmtCmdPublishActiveCN:
{
break;
}
case kEplNmtCmdPublishPreOperational1:
{
break;
}
case kEplNmtCmdPublishPreOperational2:
{
break;
}
case kEplNmtCmdPublishReadyToOperate:
{
break;
}
case kEplNmtCmdPublishOperational:
{
break;
}
case kEplNmtCmdPublishStopped:
{
break;
}
case kEplNmtCmdPublishEmergencyNew:
{
break;
}
case kEplNmtCmdPublishTime:
{
break;
}
//-----------------------------------------------------------------------
// error from MN
// -> requested command not supported by MN
case kEplNmtCmdInvalidService:
{
// TODO: errorevent to application
break;
}
//------------------------------------------------------------------------
// default
default:
{
Ret = kEplNmtUnknownCommand;
goto Exit;
}
} // end of switch(NmtCommand)
if (NmtEvent != kEplNmtEventNoEvent) {
if (EplNmtCnuInstance_g.m_pfnCheckEventCb != NULL) {
Ret = EplNmtCnuInstance_g.m_pfnCheckEventCb(NmtEvent);
if (Ret == kEplReject) {
Ret = kEplSuccessful;
goto Exit;
} else if (Ret != kEplSuccessful) {
goto Exit;
}
}
#if(((EPL_MODULE_INTEGRATION) & (EPL_MODULE_NMTU)) != 0)
Ret = EplNmtuNmtEvent(NmtEvent);
#endif
}
Exit:
return Ret;
}
//---------------------------------------------------------------------------
//
// Function: EplNmtCnuGetNmtCommand()
//
// Description: returns the NMT-Command from the frame
//
//
//
// Parameters: pFrameInfo_p = pointer to the Frame
// with the NMT-Command
//
//
// Returns: tEplNmtCommand = NMT-Command
//
//
// State:
//
//---------------------------------------------------------------------------
static tEplNmtCommand EplNmtCnuGetNmtCommand(tEplFrameInfo * pFrameInfo_p)
{
tEplNmtCommand NmtCommand;
tEplNmtCommandService *pNmtCommandService;
pNmtCommandService =
&pFrameInfo_p->m_pFrame->m_Data.m_Asnd.m_Payload.
m_NmtCommandService;
NmtCommand =
(tEplNmtCommand) AmiGetByteFromLe(&pNmtCommandService->
m_le_bNmtCommandId);
return NmtCommand;
}
//---------------------------------------------------------------------------
//
// Function: EplNmtCnuNodeIdList()
//
// Description: check if the own nodeid is set in EPL Node List
//
//
//
// Parameters: pbNmtCommandDate_p = pointer to the data of the NMT Command
//
//
// Returns: BOOL = TRUE if nodeid is set in EPL Node List
// FALSE if nodeid not set in EPL Node List
//
//
// State:
//
//---------------------------------------------------------------------------
static BOOL EplNmtCnuNodeIdList(BYTE * pbNmtCommandDate_p)
{
BOOL fNodeIdInList;
unsigned int uiByteOffset;
BYTE bBitOffset;
BYTE bNodeListByte;
// get byte-offset of the own nodeid in NodeIdList
// devide though 8
uiByteOffset = (unsigned int)(EplNmtCnuInstance_g.m_uiNodeId >> 3);
// get bitoffset
bBitOffset = (BYTE) EplNmtCnuInstance_g.m_uiNodeId % 8;
bNodeListByte = AmiGetByteFromLe(&pbNmtCommandDate_p[uiByteOffset]);
if ((bNodeListByte & bBitOffset) == 0) {
fNodeIdInList = FALSE;
} else {
fNodeIdInList = TRUE;
}
return fNodeIdInList;
}
#endif // #if(((EPL_MODULE_INTEGRATION) & (EPL_MODULE_NMT_CN)) != 0)
// EOF