// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members

// which accompanies this distribution, and is available

// at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// e32\include\d32comm.h

// 

//

//#define _DEBUG_DEVCOMM

/**

@file

@publishedPartner

@released

*/

#ifndef __D32COMM_H__

#define __D32COMM_H__

#include <e32cmn.h>

#include <e32ver.h>

/**

 Enumeration of number of data bits for serial port configuration.

 Typically, these values are used to initialize the iDataBits of 

 TCommConfigV01 before calling DComm::Configure() or any other serial

 comm API to configure the serial port's databits size.

 */

enum TDataBits {EData5,EData6,EData7,EData8};

/**

 Enumeration of number of stop bits for serial port configuration.

 Typically, these values are used to initialize the iStopBits of 

 TCommConfigV01 before calling DComm::Configure() or any other serial

 comm API to configure the serial port's stopbits.

 */

enum TStopBits {EStop1,EStop2};

/**

 Enumeration of types of parity for serial port configuration.

 Typically, these values are used to initialize the iParity of 

 TCommConfigV01 before calling DComm::Configure() or any other serial

 comm API to configure the serial port's parity setting.

 */

enum TParity {EParityNone,EParityEven,EParityOdd,EParityMark,EParitySpace};

/**

 Enumeration of baud rates in bits per second for serial port configuration.

 * e.g EBps115200 is for 115200Bps data rate  

 Typically, these values are used to initialize the iRate of TCommConfigV01 

 before calling DComm::Configure() or any other serial comm API to configure

 the serial port's baud rate.

 */

enum TBps

	{

	EBps50,

	EBps75,

	EBps110,

	EBps134,

	EBps150,

	EBps300,

	EBps600,

	EBps1200,

	EBps1800,

	EBps2000,

	EBps2400,

	EBps3600,

	EBps4800,

	EBps7200,

	EBps9600,

	EBps19200,

	EBps38400,

	EBps57600,

	EBps115200,

	EBps230400,

	EBps460800,

	EBps576000,

	EBps1152000,

	EBps4000000,

	EBps921600,

	EBpsAutobaud=0x40000000,

	EBpsSpecial=0x80000000,

	};

/**

 Enumeration of Fifo status (enable and disable) for serial port configuration.

 Typically, these values are used to initialize the iFifo of TCommConfigV01 

 before calling DComm::Configure() or any other serial comm API to configure

 the serial port's fifo.

 */

enum TFifo

	{

	EFifoEnable,EFifoDisable,

	};

/**

 Enumeration of SIR status (enable and disable) for serial comm configuration.

 Typically, these values are used to initialize the iSIREnable of TCommConfigV01 

 before calling DComm::Configure() or any other serial comm API to configure

 the serial port's SIR (infrared) settings.

 */

enum TSir 

	{

	ESIREnable,ESIRDisable,

	};

enum TFlowControl

	{

	EFlowControlOn,EFlowControlOff

	};

//

const TInt KConfigMaxTerminators=4;

// DTE Constants

const TUint KConfigObeyXoff=0x01;

const TUint KConfigSendXoff=0x02;

const TUint KConfigObeyCTS=0x04;

const TUint KConfigFailCTS=0x08;

const TUint KConfigObeyDSR=0x10;

const TUint KConfigFailDSR=0x20;

const TUint KConfigObeyDCD=0x40;

const TUint KConfigFailDCD=0x80;

const TUint KConfigFreeRTS=0x100;

const TUint KConfigFreeDTR=0x200;

// DCE Constants

const TUint KConfigObeyDTR=0x400;

const TUint KConfigFailDTR=0x800;

const TUint KConfigObeyRTS=0x1000;

const TUint KConfigFailRTS=0x2000;

const TUint KConfigFreeDSR=0x4000;

const TUint KConfigFreeCTS=0x8000;

const TUint KConfigFreeDCD=0x10000;

const TUint KConfigFreeRI=0x20000;

const TUint KConfigWriteBufferedComplete=0x80000000;

//

const TUint KConfigParityErrorFail=0;

const TUint KConfigParityErrorIgnore=0x01;

const TUint KConfigParityErrorReplaceChar=0x02;

const TUint KConfigXonXoffDebug=0x80000000;

//

const TUint KSignalCTS=0x01;

const TUint KSignalDSR=0x02;

const TUint KSignalDCD=0x04;

const TUint KSignalRNG=0x08;

const TUint KSignalRTS=0x10; 

const TUint KSignalDTR=0x20;

const TUint KSignalBreak=0x40;

const TUint KSignalChanged=0x1000;

const TUint KCTSChanged=KSignalCTS*KSignalChanged;

const TUint KDSRChanged=KSignalDSR*KSignalChanged;

const TUint KDCDChanged=KSignalDCD*KSignalChanged;

const TUint KRNGChanged=KSignalRNG*KSignalChanged;

const TUint KRTSChanged=KSignalRTS*KSignalChanged;

const TUint KDTRChanged=KSignalDTR*KSignalChanged;

const TUint KBreakChanged=KSignalBreak*KSignalChanged;

const TUint KSignalDTEOutputs=KSignalRTS|KSignalDTR;

const TUint KSignalDTEInputs=KSignalCTS|KSignalDSR|KSignalDCD|KSignalRNG;

const TUint KSignalDCEInputs=KSignalDTEOutputs;

const TUint KSignalDCEOutputs=KSignalDTEInputs;

const TUint KConfigSIRPulseWidthMaximum=0x01;

const TUint KConfigSIRPulseWidthMinimum=0x02;

// more SIRSettings for selecting the IR range

const TUint KConfigSIRShutDown=0x10;

const TUint KConfigSIRMinimumRange=0x20;

const TUint KConfigSIRMediumRange=0x40;

const TUint KConfigSIRMaximumRange=0x80;

/**

 Comms configuration structure.

 Class to hold the configuration settings for serial comm port

 This class provides the serial port configuration block interface of serial comms (c32).

 A serial comm client sets up a serial port before use, by providing a configuration block. 

 TCommConfigV01 is initialized with settings for serial port and used to configure the 

 serial port by calling DComm::Configure(TCommConfigV01 &aConfig) or any other serial comm 

 API to configure the serial port.

 */

class TCommConfigV01

    {

public:

	/** 

	 Data rate in bits per second.

	 @see TBps 	

	 */

	TBps iRate;

	/** 

	 Character width in bits.

	 @see TDataBits

	 */	

	TDataBits iDataBits;

	/**

	 Number of stop bits.

	 @see TStopBits

	 */

	TStopBits iStopBits;

	/**

	 Type of parity.

	 @see TParity 

	 */

	TParity iParity;

	/**

	 Type of Handshaking control.

	 Possible values can be KConfigObeyXXX or KConfigSendXXX or KConfigFailXXX or KConfigFreeXXX

	 */

	TUint iHandshake;

	/**

	 Type of error to generate on a parity failure.

	 Possible values can be KConfigParityErrorFail or KConfigParityErrorIgnore or KConfigParityErrorReplaceChar

	 */

	TUint iParityError;

	/**

	 FIFO status, enabled or disabled.

	 @see TFifo 

	 */

	TUint iFifo;

	/**

	 Special data rate, not listed under TBps. Use this, when iRate is set to EBpsSpecial 

	 */

	TInt iSpecialRate;

	/**

	 Count of number of special characters used as terminators (<=KConfigMaxTerminators) 

	 */				

	TInt iTerminatorCount;

	/**

	 Array of special characters which can be used as terminators 

	 */

	TText8 iTerminator[KConfigMaxTerminators];

	/**

	 Character used to signal the transmitter to resume sending when using XON/XOFF handshaking

	 i.e character used as XON - software flow control

	 */

	TText8 iXonChar;

	/**

	 Character used to signal the transmitter to suspend sending when using XON/XOFF handshaking

	 i.e character used as XOFF - software flow control

	 */

	TText8 iXoffChar;

	/**

	 Character used to replace the characters received with a parity error.

	 This is used when iParityError is set to KConfigParityErrorReplaceChar 

	 */	

	TText8 iParityErrorChar;

	/**

	 Switch the SIR encoding hardware on and off.

	 @see TSir

	 */

	TSir iSIREnable;

	/**

	 SIR hardware control setting. Possible value can be one of KConfigSIRXXX

	 */

	TUint iSIRSettings;

	};

/** 

 Package buffer for a TCommConfigV01 object.

 TCommConfig packages the comms configuration structure TCommConfigV01 to a buffer. 

 This is used with API of serial comms like RComm::Config(TDes8 &aConfig) and 

 RComm::SetConfig(TDesC8 &aConfig) where config structure is passed as buffer.

 @see TCommConfigV01

 */		

typedef TPckgBuf<TCommConfigV01> TCommConfig;

// TCommConfigV02 is deprecated.

//

class TCommConfigV02: public TCommConfigV01

	{

public:		

	TInt iTxShutdownTimeout;

	};

// TCommConfig2 is deprecated

// 

typedef TPckgBuf<TCommConfigV02> TCommConfig2;

//

const TUint KCapsBps50=0x00000001;

const TUint KCapsBps75=0x00000002;

const TUint KCapsBps110=0x00000004;

const TUint KCapsBps134=0x00000008;

const TUint KCapsBps150=0x00000010;

const TUint KCapsBps300=0x00000020;

const TUint KCapsBps600=0x00000040;

const TUint KCapsBps1200=0x00000080;

const TUint KCapsBps1800=0x00000100;

const TUint KCapsBps2000=0x00000200;

const TUint KCapsBps2400=0x00000400;

const TUint KCapsBps3600=0x00000800;

const TUint KCapsBps4800=0x00001000;

const TUint KCapsBps7200=0x00002000;

const TUint KCapsBps9600=0x00004000;

const TUint KCapsBps19200=0x00008000;

const TUint KCapsBps38400=0x00010000;

const TUint KCapsBps57600=0x00020000;

const TUint KCapsBps115200=0x00040000;

const TUint KCapsBps230400=0x00080000;

const TUint KCapsBps460800=0x00100000;

const TUint KCapsBps576000 =0x00200000;

const TUint KCapsBps1152000=0x00400000;

const TUint KCapsBps4000000=0x00800000;

const TUint KCapsBps921600=0x01000000;

const TUint KCapsBpsAutobaud=0x40000000;

const TUint KCapsBpsSpecial=0x80000000;

//

const TUint KCapsData5=0x01;

const TUint KCapsData6=0x02;

const TUint KCapsData7=0x04;

const TUint KCapsData8=0x08;

//

const TUint KCapsStop1=0x01;

const TUint KCapsStop2=0x02;

//

const TUint KCapsParityNone=0x01;

const TUint KCapsParityEven=0x02;

const TUint KCapsParityOdd=0x04;

const TUint KCapsParityMark=0x08;

const TUint KCapsParitySpace=0x10;

//

const TUint KCapsSignalCTSSupported=0x01;

const TUint KCapsSignalDSRSupported=0x02;

const TUint KCapsSignalDCDSupported=0x04;

const TUint KCapsSignalRNGSupported=0x08;

const TUint KCapsSignalRTSSupported=0x10;

const TUint KCapsSignalDTRSupported=0x20;

//

const TUint KCapsObeyXoffSupported=0x01;

const TUint KCapsSendXoffSupported=0x02;

const TUint KCapsObeyCTSSupported=0x04;

const TUint KCapsFailCTSSupported=0x08;

const TUint KCapsObeyDSRSupported=0x10;

const TUint KCapsFailDSRSupported=0x20;

const TUint KCapsObeyDCDSupported=0x40;

const TUint KCapsFailDCDSupported=0x80;

const TUint KCapsFreeRTSSupported=0x100;

const TUint KCapsFreeDTRSupported=0x200;

// DCE Constants

const TUint KCapsObeyRTSSupported=0x400;

const TUint KCapsObeyDTRSupported=0x800;

//

const TUint KCapsHasFifo=0x01;

//

const TUint KCapsSIR115kbps=0x01;

const TUint KCapsSIR2400bpsOnly=0x02;

const TUint KCapsSIR4Mbs=0x04;

//

const TUint KNotifySignalsChangeSupported=0x01;

const TUint KNotifyRateChangeSupported=0x02;

const TUint KNotifyDataFormatChangeSupported=0x04;

const TUint KNotifyHandshakeChangeSupported=0x08;

const TUint KNotifyBreakSupported=0x10;

const TUint KNotifyFlowControlChangeSupported=0x20;

const TUint KNotifyDataAvailableSupported=0x40;

const TUint KNotifyOutputEmptySupported=0x80;

//

const TUint KCapsRoleSwitchSupported=0x01;

//

const TUint KCapsFlowControlStatusSupported=0x01;

//

const TUint KRateChanged=0x01;

const TUint KDataFormatChanged=0x02;

const TUint KHandshakeChanged=0x04;

//

class TCommCapsV01

	{

public:

	TUint iRate;

	TUint iDataBits;

	TUint iStopBits;

	TUint iParity;

	TUint iHandshake;

	TUint iSignals;

	TUint iFifo;

	TUint iSIR;

	};

typedef TPckgBuf<TCommCapsV01> TCommCaps;

class TCommCapsV02 : public TCommCapsV01

	{

public:

	TUint iNotificationCaps;

	TUint iRoleCaps;

	TUint iFlowControlCaps;

	};

typedef TPckgBuf<TCommCapsV02> TCommCaps2;

class TCommCapsV03 : public TCommCapsV02

	{

public:

	TBool iBreakSupported;

	};

typedef TPckgBuf<TCommCapsV03> TCommCaps3;

//

class TCapsDevCommV01

	{

public:

	TVersion version;

	};

class TCommNotificationV01

	{

public:

	TUint iChangedMembers;

	TBps iRate;

	TDataBits iDataBits;

	TStopBits iStopBits;

	TParity iParity;

	TUint iHandshake;

	};

typedef TPckgBuf<TCommNotificationV01> TCommNotificationPckg;

//

const TUint KDataAvailableNotifyFlag=0x80000000;

//

#ifdef _DEBUG_DEVCOMM

class TCommDebugInfo

	{

public:

	TBool iRxBusy;

	TBool iRxHeld;

	TInt iRxLength;

	TInt iRxOffset;

	TInt iRxIntCount;

	TInt iRxErrCount;

	TInt iRxBufCount;

	TBool iTxBusy;

	TBool iTxHeld;

	TInt iTxLength;

	TInt iTxOffset;

	TInt iTxIntCount;

	TInt iTxErrCount;

	TInt iTxBufCount;

	TBool iDrainingRxBuf;

	TBool iFillingTxBuf;

	TBool iRunningDfc;

	TInt iDfcCount;

	TInt iDfcReqSeq;

	TInt iDfcHandlerSeq;

	TInt iDoDrainSeq;

	TBool iTxDfcPend;

	TBool iRxDfcPend;

	TInt iTxChars, iRxChars;

	TInt iTxXon, iTxXoff, iRxXon, iRxXoff;

	};

typedef TPckgBuf<TCommDebugInfo> TCommDebugInfoPckg;

#endif

//

class RBusDevComm : public RBusLogicalChannel

	{

public:

	enum TVer {EMajorVersionNumber=1,EMinorVersionNumber=0,EBuildVersionNumber=KE32BuildVersionNumber};

	enum TRequest

		{

		ERequestRead=0x0,ERequestReadCancel=0x1,

		ERequestWrite=0x1,ERequestWriteCancel=0x2,

		ERequestBreak=0x2,ERequestBreakCancel=0x4,

		ERequestNotifySignalChange=0x3,ERequestNotifySignalChangeCancel=0x8,

		};

	enum TControl

		{

		EControlConfig,EControlSetConfig,EControlCaps,

		EControlSignals,EControlSetSignals,

		EControlQueryReceiveBuffer,EControlResetBuffers,

		EControlReceiveBufferLength,EControlSetReceiveBufferLength,

		EControlMinTurnaroundTime,EControlSetMinTurnaroundTime,

#ifdef _DEBUG_DEVCOMM

		EControlDebugInfo

#endif

		};

public:

#ifndef __KERNEL_MODE__

	inline TInt Open(TInt aUnit);

	inline TVersion VersionRequired() const;

	inline void Read(TRequestStatus &aStatus,TDes8 &aDes);

	inline void Read(TRequestStatus &aStatus,TDes8 &aDes,TInt aLength);

	inline void ReadOneOrMore(TRequestStatus &aStatus,TDes8 &aDes);

	inline void ReadCancel();

	inline void Write(TRequestStatus &aStatus,const TDesC8 &aDes);

	inline void Write(TRequestStatus &aStatus,const TDesC8 &aDes,TInt aLength);

	inline void WriteCancel();

	inline void Break(TRequestStatus &aStatus,TInt aTime);

	inline void BreakCancel();

	inline void Config(TDes8 &aConfig);

	inline TInt SetConfig(const TDesC8 &aConfig);

	inline void Caps(TDes8 &aCaps);

	inline TUint Signals();

	inline void SetSignals(TUint aSetMask,TUint aClearMask);

	inline TInt QueryReceiveBuffer();

	inline void ResetBuffers();

	inline TInt ReceiveBufferLength();

	inline TInt SetReceiveBufferLength(TInt aLength);

	inline void NotifySignalChange(TRequestStatus& aStatus,TUint& aSignals,TUint aSignalMask=0x3F);

	inline void NotifySignalChangeCancel();

	inline void NotifyReceiveDataAvailable(TRequestStatus& aStatus);

	inline void NotifyReceiveDataAvailableCancel();

	inline TUint MinTurnaroundTime();

	inline TInt SetMinTurnaroundTime(TUint aMicroSeconds);

#ifdef _DEBUG_DEVCOMM

	inline void DebugInfo(TDes8 &aInfo);

#endif

#endif

	};

class RBusDevCommDCE : public RBusLogicalChannel

	{

public:

	enum TVer {EMajorVersionNumber=1,EMinorVersionNumber=0,EBuildVersionNumber=KE32BuildVersionNumber};

	enum TRequest

		{

		ERequestRead=0x0,ERequestReadCancel=0x1,

		ERequestWrite=0x1,ERequestWriteCancel=0x2,

		ERequestBreak=0x2,ERequestBreakCancel=0x4,

		ERequestNotifySignalChange=0x3,ERequestNotifySignalChangeCancel=0x8,

		ERequestNotifyFlowControlChange=0x4,ERequestNotifyFlowControlChangeCancel=0x10,

		ERequestNotifyConfigChange=0x5,ERequestNotifyConfigChangeCancel=0x20

		};

	enum TControl

		{

		EControlConfig,EControlSetConfig,EControlCaps,

		EControlSignals,EControlSetSignals,

		EControlQueryReceiveBuffer,EControlResetBuffers,

		EControlReceiveBufferLength,EControlSetReceiveBufferLength,