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/*
* Video On Demand Samples
*
* Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* You may also obtain this software under a propriety license from Microchip.
* Please contact Microchip for further information.
*
*/
/*----------------------------------------------------------*/
/*! \file
* \brief This file contains the CIndustrialStack class (common part).
*/
/*----------------------------------------------------------*/
#ifndef INDUSTRIAL_STACK_H
#define INDUSTRIAL_STACK_H
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
#include <string.h>
#include "SafeVector.h"
#include "IndustrialStack_Types.h"
#include "IndustrialStack_MNS.h"
#include "Console.h"
class CIndustrialStack : IISNetServiceWrapperCB
{
private:
CISNetServiceWrapper *msnw;
CSafeVector<CISDeviceQueue *> deviceQueues;
CSafeVector<CSInternalEvent *> intEventListeners;
CISDeviceQueue *GetQueue(uint16_t deviceType);
void HandleStateChange(ISReturn_t state, IISElement * element);
public:
CIndustrialStack(uint8_t deviceApi, int controlRxHandle, int controlTxHandle);
virtual ~CIndustrialStack();
void ServiceStack(uint32_t time);
void EnqueueElement(uint16_t nodeAddress, IISElement *element);
bool ElementsPending();
bool ElementsPending(uint16_t ingoreNodeAddress);
void ClearAllElements();
bool SendMostMessage(CISMostMsg *message);
void Unsynchronize();
void AddInternalEventListener(CSInternalEvent* callback);
/* Callback from IISNetServiceWrapperCB interface */
virtual void OnReceivedMostMessage(CISMostMsg *rcvMessage);
virtual void OnSyncStateChanged(bool isSynced);
virtual void OnControlReadEnd();
};
class CISWaitElement : public IISElement
{
protected:
uint32_t startTime;
uint32_t timeout;
public:
CISWaitElement() : IISElement(), startTime(0), timeout(2000)
{
ElementName = "Wait Element";
}
void SetTimeout(uint32_t timeInMillis)
{
timeout = timeInMillis;
}
virtual ISReturn_t Service(CIndustrialStack *iStack, uint32_t time)
{
assert(NULL != iStack);
if (0 == startTime)
startTime = time;
else if ( ( time - startTime >= timeout ) )
return ISReturn_Success;
return ISReturn_NoChange;
}
virtual ISReturn_t OnMostMessage(CIndustrialStack *iStack, CISMostMsg *rcvMessage)
{
assert(NULL != iStack);
return ISReturn_NoChange;
}
};
class CISWaitForPendingElements : public CISWaitElement
{
private:
uint16_t ignoreNode;
public:
CISWaitForPendingElements(uint16_t ingoreNodeAddress)
: CISWaitElement(), ignoreNode(ingoreNodeAddress)
{
}
virtual ISReturn_t Service(CIndustrialStack *iStack, uint32_t time)
{
assert(NULL != iStack);
if (!iStack->ElementsPending(ignoreNode))
return ISReturn_Success;
return (CISWaitElement::Service(iStack, time) == ISReturn_NoChange)
? ISReturn_NoChange : ISReturn_Timeout;
}
};
class CISSendMostMsgElement : public CISWaitElement
{
private:
uint8_t retryCount;
public:
CISMostMsg Request;
CISMostMsg Response;
bool WaitForResponse;
CISOpType_t WaitForResponseOpType;
CISSendMostMsgElement() : CISWaitElement(), retryCount(4),
WaitForResponse(false),
WaitForResponseOpType(CISOpType_INVALID)
{
timeout = 500;
}
virtual ISReturn_t Service(CIndustrialStack *iStack, uint32_t time)
{
assert(NULL != iStack);
if (0 == startTime)
{
CISWaitElement::Service(iStack, time);
if (Request.IsValid == false || Request.FBlock == 0xFFFFFFFF
|| Request.Func == 0xFFFFFFFF || Request.Inst == 0xFFFFFFFF
|| Request.OpType == CISOpType_INVALID)
{
ConsolePrintf(PRIO_ERROR,
RED"CISSendMostMsgElement %s invalid MOST message to be"\
" sent"RESETCOLOR"\n", ElementName);
return ISReturn_Failure;
}
bool success = iStack->SendMostMessage(&Request);
if (success && !WaitForResponse)
return ISReturn_Success;
return success ? ISReturn_NoChange : ISReturn_Failure;
}
ISReturn_t waitState = CISWaitElement::Service(iStack, time);
if (ISReturn_Success == waitState)
{
if (0 == --retryCount)
{
ConsolePrintf(PRIO_ERROR, RED"All High level retries failed for Request '%s',"\
" node 0x%X!"RESETCOLOR"\n",
ElementName, Request.TargetAddress);
return ISReturn_Timeout;
}
//Retry sending
ConsolePrintf(PRIO_HIGH, YELLOW"High level retry after timeout for Request '%s',"\
" node 0x%X"RESETCOLOR"\n",
ElementName, Request.TargetAddress);
startTime = time;
return (iStack->SendMostMessage(&Request)) ? ISReturn_NoChange : ISReturn_Failure;
}
return ISReturn_NoChange;
}
virtual ISReturn_t OnMostMessage(CIndustrialStack *iStack, CISMostMsg *rcvMessage)
{
if (!WaitForResponse)
return ISReturn_NoChange;
assert(NULL != iStack);
assert(NULL != rcvMessage);
assert(Request.IsValid);
assert(rcvMessage->IsValid);
uint32_t requestAddr = Request.TargetAddress;
uint32_t responseAddr = rcvMessage->SourceAddress;
if (requestAddr >= 0x400 && requestAddr <= 0x4FF )
requestAddr -= 0x300;
if (responseAddr >= 0x400 && responseAddr <= 0x4FF )
responseAddr -= 0x300;
if ( ( requestAddr < 0x300 || requestAddr > 0x3FF )
&& ( responseAddr != requestAddr))
return ISReturn_NoChange;
if ( rcvMessage->FBlock == Request.FBlock
&& rcvMessage->Func == Request.Func)
{
if (rcvMessage->OpType == WaitForResponseOpType)
{
Response.DeepCopy(rcvMessage);
return ISReturn_Success;
}
else if(0 == --retryCount)
{
Response.DeepCopy(rcvMessage);
return ISReturn_Failure;
}
//Retry sending
ConsolePrintf(PRIO_HIGH, YELLOW"High level retry after wrong result for Request '%s',"\
" node 0x%X"RESETCOLOR"\n",
ElementName, Request.TargetAddress);
return (iStack->SendMostMessage(&Request)) ? ISReturn_NoChange : ISReturn_Failure;
}
return ISReturn_NoChange;
}
};
class CSInternalEvent : public IISElement
{
public:
virtual ISReturn_t Service(CIndustrialStack *iStack, uint32_t time)
{
//Must not be called
return ISReturn_Failure;
}
virtual ISReturn_t OnMostMessage(CIndustrialStack *iStack, CISMostMsg *r)
{
//Must not be called
return ISReturn_Failure;
}
virtual void OnSyncStateChanged(CIndustrialStack *iStack, bool isSynced) {}
virtual void OnControlReadEnd(CIndustrialStack *iStack) {}
};
#endif //INDUSTRIAL_STACK_H
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