--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/testexecfw/statsrv/device/source/statapi/light/statlightserial/src/serialdriver.cpp Mon Mar 08 15:03:44 2010 +0800
@@ -0,0 +1,596 @@
+/*
+* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+
+
+/**
+@file
+@internalComponent
+*/
+
+// System includes..
+#include <e32base.h>
+
+#include "SerialDriverExt.h"
+#include "SerialDriver.h" // our header
+
+// Some useful logical/physical driver names.
+#if defined (__WINS__)
+#define PDD_NAME _L("ECDRV.PDD")
+#define LDD_NAME _L("ECOMM.LDD")
+#define DEFAULT_PORT 1
+#else
+#define PDD_NAME _L("EUART")
+#define LDD_NAME _L("ECOMM")
+#define DEFAULT_PORT 0
+#endif
+
+// How many varaiants of the physical driver should we attempt to load before failing.
+#ifdef __WINS__
+ const TInt KMaxPdds=0;
+#else
+ const TInt KMaxPdds=10;
+#endif
+
+#define IGNORE_VALUE(val) ((val)=(val))
+
+class RSerialPort : public RBusDevComm
+ {
+ public:
+
+ TBool TimedWrite(TRequestStatus & aStatus,
+ TTimeIntervalMicroSeconds32 aTimeout,
+ const TDesC8 &aDes,
+ TInt aLength);
+
+ TBool TimedRead(TRequestStatus & aStatus,
+ TTimeIntervalMicroSeconds32 aTimeout,
+ TDes8 &aDes,
+ TInt aLength);
+
+ };
+
+TBool RSerialPort::TimedRead(TRequestStatus & aStatus,
+ TTimeIntervalMicroSeconds32 aTimeout,
+ TDes8 &aDes,
+ TInt aLength)
+ {
+ IGNORE_VALUE(aTimeout);
+
+
+ // Do the actual read using the base class function...
+
+ Read(aStatus, aDes, aLength); // asynchronous
+
+
+ // if the timer was still running when we cancelled it here, then all ok.
+ return (ETrue);
+
+ }
+
+TBool RSerialPort::TimedWrite(TRequestStatus & aStatus,
+ TTimeIntervalMicroSeconds32 aTimeout,
+ const TDesC8 &aDes,
+ TInt aLength)
+ {
+
+ IGNORE_VALUE(aTimeout);
+
+ // Do the actual write using the base class function...
+ Write(aStatus, aDes, aLength); // asynchronous
+
+ return (ETrue);
+
+ }
+
+
+/////////////////////
+/// CSerialServer ///
+/////////////////////
+
+CSerialServer::CSerialServer()
+{
+
+ m_errLogicalLoad = KErrNone;
+ m_errPhysicalLoad = KErrNone;
+
+ for (TUint index = 0; index < MAX_PORTS; index++)
+ portsInUse[index] = NULL;
+
+}
+
+CSerialServer::~CSerialServer()
+ {
+ // Delete any ports that are still in use...
+ for (TUint index = 0; index < MAX_PORTS; index++)
+ {
+ if (portsInUse[index] != NULL)
+ {
+ delete portsInUse[index];
+ portsInUse[index]= NULL; // just tidying up
+ }
+ }
+ }
+
+TBool CSerialServer::Open(void)
+ {
+
+ TBool bSuccess = EFalse;
+
+ // Load the logical driver.
+ m_errLogicalLoad = User::LoadLogicalDevice(LDD_NAME);
+
+ if (m_errLogicalLoad == KErrNone || m_errLogicalLoad == KErrAlreadyExists)
+ {
+
+ // Load the physical driver.
+ TInt loadErr;
+ TBuf<10> pddName=PDD_NAME;
+
+ // Try EUART as a driver name first, then EUART0, EUART1, EUART2...EUARTn.
+ TInt driver;
+ for (driver=-1; driver<KMaxPdds && bSuccess == EFalse; ++driver)
+ {
+ if (driver==0)
+ pddName.Append(TChar('0'));
+ else if (driver>0)
+ pddName[pddName.Length()-1] = (TText)('0'+driver);
+ loadErr = User::LoadPhysicalDevice(pddName);
+ if (loadErr == KErrNone || loadErr==KErrAlreadyExists)
+ bSuccess = ETrue;
+ }
+
+ // If failed to load physical driver, unload the logical if this wasn't originally present
+ if (bSuccess == EFalse)
+ {
+ if (m_errLogicalLoad == KErrNone)
+ User::FreeLogicalDevice(LDD_NAME);
+ }
+ }
+
+ return(bSuccess);
+ }
+
+TBool CSerialServer::Close(void)
+ {
+ TInt logUnloadError = KErrNone;
+ TInt phyUnloadError = KErrNone;
+ TBool bSuccess = EFalse;
+
+ // If not originally loaded, then unload the physical device.
+ if (m_errPhysicalLoad == KErrNone)
+ phyUnloadError = User::FreePhysicalDevice(PDD_NAME);
+
+ // If not originally loaded, then unload the logical device.
+ if (m_errLogicalLoad == KErrNone)
+ logUnloadError = User::FreeLogicalDevice(LDD_NAME);
+
+ if (phyUnloadError == KErrNone && logUnloadError == KErrNone)
+ bSuccess = ETrue;
+
+ return (bSuccess);
+
+ }
+
+
+RSerialPort * CSerialServer::GetPort(TUint aPortNum)
+ {
+ RSerialPort * pRPort = (aPortNum < MAX_PORTS ? portsInUse[aPortNum] : NULL);
+ return (pRPort);
+ }
+
+
+RSerialPort * CSerialServer::InitialisePort(TUint aPortNum)
+{
+ RSerialPort * newPort = NULL;
+
+ if (aPortNum < MAX_PORTS && portsInUse[aPortNum] == NULL)
+ {
+
+ // Create a new port...
+ newPort = new RSerialPort; //RClass - so can't leave.
+
+ // Open the real port...
+ TInt error = newPort->Open(aPortNum);
+
+ if (error != KErrNone )
+ {
+ // There was a problem, tidy up...
+ delete newPort;
+ newPort = NULL;
+ }
+ else
+ {
+ // Record a pointer to our port for later use.
+ portsInUse[aPortNum] = newPort;
+ }
+ }
+
+ return (newPort);
+}
+
+TBool CSerialServer::ClosePort (TUint aPortNum)
+{
+ TBool closed = EFalse;
+
+ // if port is valid...
+ if (aPortNum < MAX_PORTS && portsInUse[aPortNum])
+ {
+ // Close the physical port!
+ portsInUse[aPortNum]->Close();
+
+ // Delete the memory and update the pointer.
+ delete portsInUse[aPortNum];
+ portsInUse[aPortNum] = NULL;
+
+ // Update flag to indicate all closed ok.
+ closed = ETrue;
+
+ }
+ return (closed);
+
+}
+
+///////////////////
+/// CSerialPort ///
+///////////////////
+
+
+CSerialPort::CSerialPort()
+{
+ m_pOurServer = NULL;
+}
+
+CSerialPort::~CSerialPort()
+{
+
+}
+
+TBool CSerialPort::Open(CSerialServer & aServer, TUint aPort)
+ {
+ TBool bOpenedOk = EFalse;
+
+ // The server holds the real port details, so call the server to do the business...
+ if (aServer.InitialisePort(aPort) != NULL)
+ {
+ m_pOurServer = &aServer;
+
+ m_portId = aPort;
+
+ bOpenedOk = ETrue;
+ }
+
+ return (bOpenedOk);
+ }
+
+
+TBool CSerialPort::Close(void)
+ {
+ TBool bClosed = EFalse;
+
+ // The server object holds all the real details, so call the appropriate
+ // server function.
+ if (m_pOurServer)
+ bClosed = m_pOurServer->ClosePort(m_portId);
+
+ return (bClosed);
+ }
+
+TBool CSerialPort::Read(TRequestStatus & aStatus,
+ TTimeIntervalMicroSeconds32 aTimeout,
+ TDes8 &aDes,
+ TInt aLength)
+ {
+ TBool success = EFalse;
+
+ RSerialPort * pPort = GivePortDetails();
+
+ if (pPort)
+ {
+ if (pPort->TimedRead(aStatus, aTimeout, aDes, aLength))
+ success = ETrue;
+ }
+
+ // return success or otherwise!
+ return (success);
+ }
+
+
+TBool CSerialPort::Write(TRequestStatus & aStatus,
+ TTimeIntervalMicroSeconds32 aTimeout,
+ const TDesC8 &aDes,
+ TInt aLength)
+ {
+
+ TBool success = EFalse;
+
+ RSerialPort * pPort = GivePortDetails();
+
+ if (pPort)
+ {
+ if (pPort->TimedWrite(aStatus, aTimeout, aDes, aLength))
+ success = ETrue;
+ }
+
+ // return success or otherwise!
+ return (success);
+ }
+
+
+TInt CSerialPort::SetConfig(const TCommConfig & aRequiredConfig)
+ {
+ TInt errConfig = KErrUnknown;
+
+ RSerialPort * pPort = GivePortDetails();
+
+ if (pPort)
+ {
+ errConfig = pPort->SetConfig(aRequiredConfig);
+ }
+
+ return (errConfig);
+ }
+
+TBool CSerialPort::GetPortConfig(TCommConfig & aPortSettings)
+{
+ TBool validAction = EFalse;
+
+ RSerialPort * pPort = GivePortDetails();
+
+ if (pPort)
+ {
+ pPort->Config( aPortSettings );
+ validAction = ETrue;
+ }
+
+ return (validAction);
+}
+
+TBool CSerialPort::ReadCancel(void)
+ {
+ TBool validAction = EFalse;
+
+ RSerialPort * pPort = GivePortDetails();
+
+ if (pPort)
+ {
+ pPort->ReadCancel();
+ validAction = ETrue;
+ }
+
+ return (validAction);
+ }
+
+
+TBool CSerialPort::WriteCancel(void)
+ {
+ TBool validAction = EFalse;
+
+ RSerialPort * pPort = GivePortDetails();
+
+ if (pPort)
+ {
+ pPort->WriteCancel();
+ validAction = ETrue;
+ }
+ return (validAction);
+
+ }
+
+TBool CSerialPort::SetReceiveBufferLength(TInt aSize)
+ {
+ TBool validAction = EFalse;
+
+ RSerialPort * pPort = GivePortDetails();
+
+ if (pPort)
+ {
+ pPort->SetReceiveBufferLength(aSize);
+ validAction = ETrue;
+ }
+
+ return (validAction);
+
+ }
+
+TBool CSerialPort::ReceiveBufferLength(TInt & aSize)
+ {
+ TBool validAction = EFalse;
+
+ RSerialPort * pPort = GivePortDetails();
+
+ if (pPort)
+ {
+ aSize = pPort->ReceiveBufferLength();
+ validAction = ETrue;
+ }
+
+ return (validAction);
+ }
+
+
+
+RSerialPort * CSerialPort::GivePortDetails(void)
+ {
+ RSerialPort * pPort = NULL;
+
+ if (m_pOurServer)
+ pPort = m_pOurServer->GetPort(m_portId);
+
+ return (pPort);
+ }
+
+//////////////////////////////
+// The external interface
+// for users of the library
+//////////////////////////////
+
+EXPORT_C SerialServer OpenSerialServerL(void)
+ {
+ CSerialServer * pServer;
+ pServer = new(ELeave) CSerialServer;
+
+ // Declare a server and open it.
+ if ( pServer->Open() == EFalse)
+ {
+ delete pServer;
+ pServer = NULL;
+ }
+
+ return (static_cast<SerialServer>(pServer));
+ }
+
+EXPORT_C void CloseSerialServer(SerialServer aServer)
+ {
+ if (aServer)
+ {
+ CSerialServer * pServer = static_cast<CSerialServer *>(aServer);
+ delete pServer;
+ }
+ }
+
+EXPORT_C TAny * OpenSerialPortL(SerialServer aServer, TUint aPort)
+ {
+ CSerialServer * pServer = static_cast<CSerialServer *>(aServer);
+
+ CSerialPort * pPort = new(ELeave) CSerialPort;
+
+ if (pPort->Open(*pServer, aPort) == EFalse)
+ {
+ delete pPort;
+ pPort = NULL;
+ }
+
+ return (static_cast<TAny *>(pPort));
+ }
+
+EXPORT_C TBool CloseSerialPort(SerialPort aPort)
+{
+ CSerialPort * pPort = static_cast<CSerialPort *>(aPort);
+
+ TBool returnVal = pPort->Close();
+
+ delete pPort;
+
+ return (returnVal);
+}
+
+EXPORT_C TBool Read(SerialPort aPort,
+ TRequestStatus & aStatus,
+ TTimeIntervalMicroSeconds32 aTimeout,
+ TDes8 &aDes,
+ TInt aLength)
+ {
+ TBool ok = EFalse;
+ if (aPort)
+ {
+ CSerialPort * pPort = static_cast<CSerialPort *>(aPort);
+ ok = pPort->Read(aStatus, aTimeout, aDes, aLength);
+ }
+
+ return ok;
+ }
+
+EXPORT_C TBool Write(SerialPort aPort,
+ TRequestStatus & aStatus,
+ TTimeIntervalMicroSeconds32 aTimeout,
+ const TDesC8 &aDes,
+ TInt aLength)
+ {
+ TBool ok = EFalse;
+
+ if (aPort)
+ {
+ CSerialPort * pPort = static_cast<CSerialPort *>(aPort);
+ ok = pPort->Write(aStatus, aTimeout, aDes, aLength);
+ }
+ return (ok);
+ }
+
+EXPORT_C TInt SetConfig(SerialPort aPort, const TCommConfig & aRequiredConfig )
+ {
+ TInt error = KErrUnknown;
+
+ if (aPort)
+ {
+ CSerialPort * pPort = static_cast<CSerialPort *>(aPort);
+ error = pPort->SetConfig(aRequiredConfig);
+ }
+ return error;
+ }
+
+EXPORT_C TBool ReadCancel(SerialPort aPort)
+ {
+ TBool ok = EFalse;
+
+ if (aPort)
+ {
+ CSerialPort * pPort = static_cast<CSerialPort *>(aPort);
+ ok = pPort->ReadCancel();
+ }
+ return (ok);
+ }
+
+
+EXPORT_C TBool WriteCancel(SerialPort aPort)
+ {
+ TBool ok = EFalse;
+
+ if (aPort)
+ {
+ CSerialPort * pPort = static_cast<CSerialPort *>(aPort);
+ ok = pPort->WriteCancel();
+ }
+ return (ok);
+ }
+
+EXPORT_C TBool GetPortConfig (SerialPort aPort, TCommConfig & config)
+ {
+ TBool ok = EFalse;
+
+ if (aPort)
+ {
+ CSerialPort * pPort = static_cast<CSerialPort *>(aPort);
+ ok = pPort->GetPortConfig(config);
+ }
+ return (ok);
+ }
+
+
+EXPORT_C TBool SetReceiveBufferLength(SerialPort aPort, TInt aSize)
+ {
+ TBool ok = EFalse;
+
+ if (aPort)
+ {
+ CSerialPort * pPort = static_cast<CSerialPort *>(aPort);
+ ok = pPort->SetReceiveBufferLength(aSize);
+ }
+ return (ok);
+ }
+
+EXPORT_C TBool ReceiveBufferLength(SerialPort aPort, TInt & aSize)
+ {
+ TBool ok = EFalse;
+
+ if (aPort)
+ {
+ CSerialPort * pPort = static_cast<CSerialPort *>(aPort);
+ ok = pPort->ReceiveBufferLength(aSize);
+ }
+ return (ok);
+ }