/*

* Copyright (c) 2010 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:

* e32/include/drivers/usbcdesc.h

* USB descriptors and their management.

*

*/

/**

 @file usbcdesc.h

 @internalTechnology

*/

#ifndef __USBCDESC_H__

#define __USBCDESC_H__

#include <kernel/kernel.h>

// Hard-wired positions of some descriptors in iDescriptors array (whether present or not):

static const TInt KDescPosition_Device           = 0;

static const TInt KDescPosition_DeviceQualifier  = 1;

static const TInt KDescPosition_OtherSpeedConfig = 2;

static const TInt KDescPosition_Config           = 3;

static const TInt KDescPosition_Otg              = 4;

static const TInt KDescPosition_FirstAvailable   = 5;

// Hard-wired positions of string descriptors in iStrings array (whether present or not):

static const TInt KStringPosition_Langid           = 0;

static const TInt KStringPosition_Manufact         = 1;

static const TInt KStringPosition_Product          = 2;

static const TInt KStringPosition_Serial           = 3;

static const TInt KStringPosition_Config           = 4;

static const TInt KStringPosition_OtherSpeedConfig = 5;

static const TInt KStringPosition_FirstAvailable   = 6;

NONSHARABLE_CLASS(TUsbcDescriptorBase)

    {

public:

    virtual ~TUsbcDescriptorBase();

    void SetByte(TInt aPosition, TUint8 aValue);

    void SetWord(TInt aPosition, TUint16 aValue);

    TUint8 Byte(TInt aPosition) const;

    TUint16 Word(TInt aPosition) const;

    void GetDescriptorData(TDes8& aBuffer) const;

    TInt GetDescriptorData(TUint8* aBuffer) const;

    TInt GetDescriptorData(TUint8* aBuffer, TUint aMaxSize) const;

    const TDes8& DescriptorData() const;

    TDes8& DescriptorData();

    TUint Size() const;

    TUint8 Type() const;

    virtual void UpdateFs();

    virtual void UpdateHs();

protected:

    TUsbcDescriptorBase();

    void SetBufferPointer(const TDesC8& aDes);

private:

#ifdef USB_SUPPORTS_SET_DESCRIPTOR_REQUEST

    TUint8 iIndex;                                            // only needed for SET_DESCRIPTOR

#endif

    TPtr8 iBufPtr;

    };

NONSHARABLE_CLASS(TUsbcDeviceDescriptor) : public TUsbcDescriptorBase

    {

public:

    /** aMaxPacketSize0 should be the Ep0 max packet size for FS operation (as the HS size

        is fixed and known).

    */

    static TUsbcDeviceDescriptor* New(TUint8 aDeviceClass, TUint8 aDeviceSubClass,

                                      TUint8 aDeviceProtocol, TUint8 aMaxPacketSize0,

                                      TUint16 aVendorId, TUint16 aProductId,

                                      TUint16 aDeviceRelease, TUint8 aNumConfigurations);

    virtual void UpdateFs();

    virtual void UpdateHs();

private:

    TUsbcDeviceDescriptor();

    TInt Construct(TUint8 aDeviceClass, TUint8 aDeviceSubClass, TUint8 aDeviceProtocol,

                   TUint8 aMaxPacketSize0, TUint16 aVendorId, TUint16 aProductId,

                   TUint16 aDeviceRelease, TUint8 aNumConfigurations);

    TBuf8<KUsbDescSize_Device> iBuf;

    TUint8 iEp0Size_Fs;                                        // holds Ep0 size for FS (could be < 64)

    };

NONSHARABLE_CLASS(TUsbcDeviceQualifierDescriptor) : public TUsbcDescriptorBase

    {

public:

    /** aMaxPacketSize0 should be the Ep0 max packet size for FS operation (as the HS size

        is fixed and known).

    */

    static TUsbcDeviceQualifierDescriptor* New(TUint8 aDeviceClass, TUint8 aDeviceSubClass,

                                               TUint8 aDeviceProtocol, TUint8 aMaxPacketSize0,

                                               TUint8 aNumConfigurations, TUint8 aReserved=0);

    virtual void UpdateFs();

    virtual void UpdateHs();

private:

    TUsbcDeviceQualifierDescriptor();

    TInt Construct(TUint8 aDeviceClass, TUint8 aDeviceSubClass, TUint8 aDeviceProtocol,

                   TUint8 aMaxPacketSize0, TUint8 aNumConfigurations, TUint8 aReserved);

    TBuf8<KUsbDescSize_DeviceQualifier> iBuf;

    TUint8 iEp0Size_Fs;                                        // holds Ep0 size for FS (could be < 64)

    };

NONSHARABLE_CLASS(TUsbcConfigDescriptor) : public TUsbcDescriptorBase

    {

public:

    /** aMaxPower should be given here in milliamps (not mA/2). */

    static TUsbcConfigDescriptor* New(TUint8 aConfigurationValue, TBool aSelfPowered, TBool aRemoteWakeup,

                                      TUint16 aMaxPower);

private:

    TUsbcConfigDescriptor();

    TInt Construct(TUint8 aConfigurationValue, TBool aSelfPowered, TBool aRemoteWakeup, TUint16 aMaxPower);

    TBuf8<KUsbDescSize_Config> iBuf;

    };

// The Other_Speed_Configuration descriptor has same size and layout as the

// standard Configuration descriptor, therefore we don't need a new definition.

typedef TUsbcConfigDescriptor TUsbcOtherSpeedConfigDescriptor;

NONSHARABLE_CLASS(TUsbcInterfaceDescriptor) : public TUsbcDescriptorBase

    {

public:

    static TUsbcInterfaceDescriptor* New(TUint8 aInterfaceNumber, TUint8 aAlternateSetting, TInt NumEndpoints,

                                         const TUsbcClassInfo& aClassInfo);

private:

    TUsbcInterfaceDescriptor();

    TInt Construct(TUint8 aInterfaceNumber, TUint8 aAlternateSetting, TInt aNumEndpoints,

                   const TUsbcClassInfo& aClassInfo);

    TBuf8<KUsbDescSize_Interface> iBuf;

    };

NONSHARABLE_CLASS(TUsbcEndpointDescriptorBase) : public TUsbcDescriptorBase

    {

public:

    virtual void UpdateFs();

    virtual void UpdateHs();

protected:

    TInt Construct(const TUsbcEndpointInfo& aEpInfo);

    TUsbcEndpointDescriptorBase();

protected:

    /** Stores the endpoint size to be used for FS. */

    TInt iEpSize_Fs;

    /** Stores the endpoint size to be used for HS. */

    TInt iEpSize_Hs;

    /** Stores the endpoint polling interval to be used for FS. */

    TInt iInterval_Fs;

    /** Stores the endpoint polling interval to be used for HS. */

    TInt iInterval_Hs;

    };

NONSHARABLE_CLASS(TUsbcEndpointDescriptor) : public TUsbcEndpointDescriptorBase

    {

public:

    static TUsbcEndpointDescriptor* New(TUint8 aEndpointAddress, const TUsbcEndpointInfo& aEpInfo);

private:

    TUsbcEndpointDescriptor();

    TInt Construct(TUint8 aEndpointAddress, const TUsbcEndpointInfo& aEpInfo);

    TBuf8<KUsbDescSize_Endpoint> iBuf;

    };

class TUsbcAudioEndpointDescriptor : public TUsbcEndpointDescriptorBase

    {

public:

    static TUsbcAudioEndpointDescriptor* New(TUint8 aEndpointAddress, const TUsbcEndpointInfo& aEpInfo);

private:

    TUsbcAudioEndpointDescriptor();

    TInt Construct(TUint8 aEndpointAddress, const TUsbcEndpointInfo& aEpInfo);

    TBuf8<KUsbDescSize_AudioEndpoint> iBuf;

    };

NONSHARABLE_CLASS(TUsbcOtgDescriptor) : public TUsbcDescriptorBase

    {

public:

    static TUsbcOtgDescriptor* New(TBool aHnpSupport, TBool aSrpSupport);

private:

    TUsbcOtgDescriptor();

    TInt Construct(TBool aHnpSupport, TBool aSrpSupport);

    TBuf8<KUsbDescSize_Otg> iBuf;

    };

NONSHARABLE_CLASS(TUsbcClassSpecificDescriptor) : public TUsbcDescriptorBase

    {

public:

    virtual ~TUsbcClassSpecificDescriptor();

    static TUsbcClassSpecificDescriptor* New(TUint8 aType, TInt aSize);

private:

    TUsbcClassSpecificDescriptor();

    TInt Construct(TUint8 aType, TInt aSize);

    HBuf8* iBuf;

    };

NONSHARABLE_CLASS(TUsbcStringDescriptorBase)

    {

public:

    virtual ~TUsbcStringDescriptorBase();

    TUint16 Word(TInt aPosition) const;

    void SetWord(TInt aPosition, TUint16 aValue);

    TInt GetDescriptorData(TUint8* aBuffer) const;

    TInt GetDescriptorData(TUint8* aBuffer, TUint aMaxSize) const;

    const TDes8& StringData() const;

    TDes8& StringData();

    TUint Size() const;

    void SetBufferPointer(const TDesC8& aDes);

protected:

    TUsbcStringDescriptorBase();

    TBuf8<2> iSBuf;

    TPtr8 iBufPtr;

private:

//    TUint8 iIndex;                                            // not needed in DescriptorPool: position == index

    };

NONSHARABLE_CLASS(TUsbcStringDescriptor) : public TUsbcStringDescriptorBase

    {

public:

    virtual ~TUsbcStringDescriptor();

    static TUsbcStringDescriptor* New(const TDesC8& aString);

private:

    TUsbcStringDescriptor();

    TInt Construct(const TDesC8& aString);

    HBuf8* iBuf;

    };

// Currently we support only one language, and thus there's no need to provide

// a LangId string descriptor with more than one array element.

NONSHARABLE_CLASS(TUsbcLangIdDescriptor) : public TUsbcStringDescriptorBase

    {

public:

    virtual ~TUsbcLangIdDescriptor();

    static TUsbcLangIdDescriptor* New(TUint16 aLangId);

private:

    TUsbcLangIdDescriptor();

    TInt Construct(TUint16 aLangId);

    TBuf8<2> iBuf;

    };

class TUsbcDescriptorPool

    {

public:

    TUsbcDescriptorPool(TUint8* aEp0_TxBuf);

    ~TUsbcDescriptorPool();

    TInt Init(TUsbcDeviceDescriptor* aDeviceDesc, TUsbcConfigDescriptor* aConfigDesc,

              TUsbcLangIdDescriptor* aLangId, TUsbcStringDescriptor* aManufacturer,

              TUsbcStringDescriptor* aProduct, TUsbcStringDescriptor* aSerialNum,

              TUsbcStringDescriptor* aConfig, TUsbcOtgDescriptor* aOtgDesc);

    TInt InitHs();

    TInt UpdateDescriptorsFs();

    TInt UpdateDescriptorsHs();

    // Descriptors

    TInt FindDescriptor(TUint8 aType, TUint8 aIndex, TUint16 aLangid, TInt& aSize) const;

    void InsertDescriptor(TUsbcDescriptorBase* aDesc);

    void DeleteIfcDescriptor(TInt aNumber, TInt aSetting=0);

    // The TC in many of the following functions stands for 'ThreadCopy' because that's what happens there.

    TInt GetDeviceDescriptorTC(DThread* aThread, TDes8& aBuffer) const;

    TInt SetDeviceDescriptorTC(DThread* aThread, const TDes8& aBuffer);

    TInt GetConfigurationDescriptorTC(DThread* aThread, TDes8& aBuffer) const;

    TInt SetConfigurationDescriptorTC(DThread* aThread, const TDes8& aBuffer);

    TInt GetOtgDescriptorTC(DThread* aThread, TDes8& aBuffer) const;

    TInt SetOtgDescriptor(const TDesC8& aBuffer);

    TInt GetInterfaceDescriptorTC(DThread* aThread, TDes8& aBuffer, TInt aInterface, TInt aSetting) const;

    TInt SetInterfaceDescriptor(const TDes8& aBuffer, TInt aInterface, TInt aSetting);

    TInt GetEndpointDescriptorTC(DThread* aThread, TDes8& aBuffer, TInt aInterface, TInt aSetting,

                                 TUint8 aEndpointAddress) const;

    TInt SetEndpointDescriptorTC(DThread* aThread, const TDes8& aBuffer, TInt aInterface, TInt aSetting,

                                 TUint8 aEndpointAddress);

    TInt GetEndpointDescriptorSize(TInt aInterface, TInt aSetting, TUint8 aEndpointAddress, TInt& aSize) const;

    TInt GetDeviceQualifierDescriptorTC(DThread* aThread, TDes8& aBuffer) const;

    TInt SetDeviceQualifierDescriptorTC(DThread* aThread, const TDes8& aBuffer);

    TInt GetOtherSpeedConfigurationDescriptorTC(DThread* aThread, TDes8& aBuffer) const;

    TInt SetOtherSpeedConfigurationDescriptorTC(DThread* aThread, const TDes8& aBuffer);

    TInt GetCSInterfaceDescriptorTC(DThread* aThread, TDes8& aBuffer, TInt aInterface, TInt aSetting) const;

    TInt SetCSInterfaceDescriptorTC(DThread* aThread, const TDes8& aBuffer, TInt aInterface, TInt aSetting,

                                    TInt aSize);

    TInt GetCSInterfaceDescriptorSize(TInt aInterface, TInt aSetting, TInt& aSize) const;

    TInt GetCSEndpointDescriptorTC(DThread* aThread, TDes8& aBuffer, TInt aInterface, TInt aSetting,

                                   TUint8 aEndpointAddress) const;

    TInt SetCSEndpointDescriptorTC(DThread* aThread, const TDes8& aBuffer, TInt aInterface, TInt aSetting,

                                   TUint8 aEndpointAddress, TInt aSize);

    TInt GetCSEndpointDescriptorSize(TInt aInterface, TInt aSetting, TUint8 aEndpointAddress, TInt& aSize) const;

    // String descriptors

    void SetIfcStringDescriptor(TUsbcStringDescriptor* aDesc, TInt aNumber, TInt aSetting=0);

    TInt GetStringDescriptorLangIdTC(DThread* aThread, TDes8& aLangId) const;

    TInt SetStringDescriptorLangId(TUint16 aLangId);

    TInt GetManufacturerStringDescriptorTC(DThread* aThread, TDes8& aString) const;

    TInt SetManufacturerStringDescriptorTC(DThread* aThread, const TDes8& aString);

    TInt RemoveManufacturerStringDescriptor();

    TInt GetProductStringDescriptorTC(DThread* aThread, TDes8& aString) const;

    TInt SetProductStringDescriptorTC(DThread* aThread, const TDes8& aString);

    TInt RemoveProductStringDescriptor();

    TInt GetSerialNumberStringDescriptorTC(DThread* aThread, TDes8& aString) const;

    TInt SetSerialNumberStringDescriptorTC(DThread* aThread, const TDes8& aString);

    TInt RemoveSerialNumberStringDescriptor();

    TInt GetConfigurationStringDescriptorTC(DThread* aThread, TDes8& aString) const;

    TInt SetConfigurationStringDescriptorTC(DThread* aThread, const TDes8& aString);

    TInt RemoveConfigurationStringDescriptor();

    TInt GetStringDescriptorTC(DThread* aThread, TInt aIndex, TDes8& aString) const;

    TInt SetStringDescriptorTC(DThread* aThread, TInt aIndex, const TDes8& aString);

    TInt RemoveStringDescriptor(TInt aIndex);

private:

    // Descriptors

    void InsertIfcDesc(TUsbcDescriptorBase* aDesc);

    void InsertEpDesc(TUsbcDescriptorBase* aDesc);

    TInt FindIfcDescriptor(TInt aIfcNumber, TInt aIfcSetting) const;

    TInt FindEpDescriptor(TInt aIfcNumber, TInt aIfcSetting, TUint8 aEpAddress) const;

    void DeleteDescriptors(TInt aIndex, TInt aCount = 1);

    void UpdateConfigDescriptorLength(TInt aLength);

    void UpdateConfigDescriptorNumIfcs(TInt aNumber);

    void UpdateIfcNumbers(TInt aNumber);

    TInt GetDeviceDescriptor(TInt aIndex) const;

    TInt GetConfigurationDescriptor(TInt aIndex) const;

    TInt GetOtgDescriptor() const;

    // String descriptors

    TInt GetStringDescriptor(TInt aIndex) const;

    TInt GetDeviceStringDescriptorTC(DThread* aThread, TDes8& aString, TInt aIndex, TInt aPosition) const;

    TInt SetDeviceStringDescriptorTC(DThread* aThread, const TDes8& aString, TInt aIndex, TInt aPosition);

    TInt RemoveDeviceStringDescriptor(TInt aIndex, TInt aPosition);

    void ExchangeStringDescriptor(TInt aIndex, const TUsbcStringDescriptor* aDesc);

    TBool AnyStringDescriptors() const;

    TBool StringDescriptorExists(TInt aIndex) const;

    TInt FindAvailableStringPos() const;

private:

    // Data members

    RPointerArray<TUsbcDescriptorBase> iDescriptors;

    RPointerArray<TUsbcStringDescriptorBase> iStrings;

    TInt iIfcIdx;

    TUint8* const iEp0_TxBuf;                                // points to the controller's ep0 TX buffer

    TBool iHighSpeed;                                        // true if currently operating at high-speed

    };

#endif    // __USBCDESC_H__