Symaptic: os/kernelhwsrv/kerneltest/e32utils/testusbcldd/src/descriptors.cpp@260cb5ec6c19

     1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // f32test\testusbcldd\src\descriptors.cpp

    15 // Platform independent USB client controller layer (PIL):

    16 // USB descriptor handling and management.

    17 //

    18 //

    20 #include "usbcdesc.h"

    21 #include "dtestusblogdev.h"

    23 // --- TUsbcDescriptorBase

    25 TUsbcDescriptorBase::TUsbcDescriptorBase()

    26 	:

    27 #ifdef USB_SUPPORTS_SET_DESCRIPTOR_REQUEST

    28 	iIndex(0),

    29 #endif

    30 	iBufPtr(NULL, 0)

    31   	{

    32 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorBase::TUsbcDescriptorBase()")));

    33 	}

    36 TUsbcDescriptorBase::~TUsbcDescriptorBase()

    37 	{

    38 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorBase::~TUsbcDescriptorBase()")));

    39 	}

    42 void TUsbcDescriptorBase::SetByte(TUint aPosition, TUint8 aValue)

    43 	{

    44 	iBufPtr[aPosition] = aValue;

    45 	}

    48 void TUsbcDescriptorBase::SetWord(TUint aPosition, TUint16 aValue)

    49 	{

    50 	*reinterpret_cast<TUint16*>(&iBufPtr[aPosition]) = SWAP_BYTES_16(aValue);

    51 	}

    54 TUint8 TUsbcDescriptorBase::Byte(TUint aPosition) const

    55 	{

    56 	return iBufPtr[aPosition];

    57 	}

    60 TUint16 TUsbcDescriptorBase::Word(TUint aPosition) const

    61 	{

    62 	return SWAP_BYTES_16(*reinterpret_cast<const TUint16*>(&iBufPtr[aPosition]));

    63 	}

    66 void TUsbcDescriptorBase::GetDescriptorData(TDes8& aBuffer) const

    67 	{

    68 	aBuffer = iBufPtr;

    69 	}

    72 TInt TUsbcDescriptorBase::GetDescriptorData(TUint8* aBuffer) const

    73 	{

    74 	__MEMCPY(aBuffer, iBufPtr.Ptr(), Size());

    75 	return Size();

    76 	}

    79 TInt TUsbcDescriptorBase::GetDescriptorData(TUint8* aBuffer, TInt aMaxSize) const

    80 	{

    81 	if (aMaxSize < Size())

    82 		{

    83 		// No use to copy only half a descriptor

    84 		return 0;

    85 		}

    86 	return GetDescriptorData(aBuffer);

    87 	}

    90 const TDes8& TUsbcDescriptorBase::DescriptorData() const

    91 	{

    92 	return iBufPtr;

    93 	}

    96 TDes8& TUsbcDescriptorBase::DescriptorData()

    97 	{

    98 	return iBufPtr;

    99 	}

   102 TInt TUsbcDescriptorBase::Size() const

   103 	{

   104 	return iBufPtr.Size();

   105 	}

   108 TUint8 TUsbcDescriptorBase::Type() const

   109 	{

   110 	return iBufPtr[1];

   111 	}

   114 void TUsbcDescriptorBase::SetBufferPointer(const TDesC8& aDes)

   115 	{

   116 	iBufPtr.Set(const_cast<TUint8*>(aDes.Ptr()), aDes.Size(), aDes.Size());

   117 	}

   120 // --- TUsbcDeviceDescriptor

   122 TUsbcDeviceDescriptor::TUsbcDeviceDescriptor()

   123 	: iBuf()

   124   	{

   125 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDeviceDescriptor::TUsbcDeviceDescriptor()")));

   126 	}

   129 TUsbcDeviceDescriptor* TUsbcDeviceDescriptor::New(TUint8 aDeviceClass, TUint8 aDeviceSubClass,

   130 												  TUint8 aDeviceProtocol, TUint8 aMaxPacketSize0,

   131 												  TUint16 aVendorId, TUint16 aProductId,

   132 												  TUint16 aDeviceRelease, TUint8 aNumConfigurations)

   133 	{

   134 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDeviceDescriptor::New()")));

   135 	TUsbcDeviceDescriptor* self = new TUsbcDeviceDescriptor();

   136 	if (self)

   137 		{

   138 		if (self->Construct(aDeviceClass, aDeviceSubClass, aDeviceProtocol, aMaxPacketSize0, aVendorId,

   139 							aProductId, aDeviceRelease, aNumConfigurations) != KErrNone)

   140 			{

   141 			delete self;

   142 			return NULL;

   143 			}

   144 		}

   145 	return self;

   146 	}

   149 TInt TUsbcDeviceDescriptor::Construct(TUint8 aDeviceClass, TUint8 aDeviceSubClass, TUint8 aDeviceProtocol,

   150 									  TUint8 aMaxPacketSize0, TUint16 aVendorId, TUint16 aProductId,

   151 									  TUint16 aDeviceRelease, TUint8 aNumConfigurations)

   152 	{

   153 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDeviceDescriptor::Construct()")));

   154 	iBuf.SetMax();

   155 	SetBufferPointer(iBuf);

   156 	iBuf[0] = (TUint8)iBuf.Size();									// bLength

   157 	iBuf[1] = KUsbDescType_Device;							// bDescriptorType

   158  	SetWord(2, KUsbcUsbVersion);							// bcdUSB

   159 	iBuf[4] = aDeviceClass;									// bDeviceClass

   160 	iBuf[5] = aDeviceSubClass;								// bDeviceSubClass

   161 	iBuf[6] = aDeviceProtocol;								// bDeviceProtocol

   162 	iBuf[7] = aMaxPacketSize0;								// bMaxPacketSize0

   163 	SetWord(8, aVendorId);									// idVendor

   164 	SetWord(10, aProductId);								// idProduct

   165 	SetWord(12, aDeviceRelease);							// bcdDevice

   166 	iBuf[14] = 0;											// iManufacturer

   167 	iBuf[15] = 0;											// iProduct

   168 	iBuf[16] = 0;											// iSerialNumber

   169 	iBuf[17] = aNumConfigurations;							// bNumConfigurations

   170 	return KErrNone;

   171 	}

   173 // --- TUsbcConfigDescriptor

   175 TUsbcConfigDescriptor::TUsbcConfigDescriptor()

   176 	: iBuf()

   177   	{

   178 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcConfigDescriptor::TUsbcConfigDescriptor()")));

   179 	}

   182 TUsbcConfigDescriptor* TUsbcConfigDescriptor::New(TUint8 aConfigurationValue, TBool aSelfPowered,

   183 												  TBool aRemoteWakeup, TUint8 aMaxPower)

   184 	{

   185 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcConfigDescriptor::New()")));

   186 	TUsbcConfigDescriptor* self = new TUsbcConfigDescriptor();

   187 	if (self)

   188 		{

   189 		if (self->Construct(aConfigurationValue, aSelfPowered, aRemoteWakeup, aMaxPower) != KErrNone)

   190 			{

   191 			delete self;

   192 			return NULL;

   193 			}

   194 		}

   195 	return self;

   196 	}

   199 TInt TUsbcConfigDescriptor::Construct(TUint8 aConfigurationValue, TBool aSelfPowered,

   200 									   TBool aRemoteWakeup, TUint8 aMaxPower)

   201 	{

   202 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcConfigDescriptor::Construct()")));

   203 	iBuf.SetMax();

   204 	SetBufferPointer(iBuf);

   205 	iBuf[0] = (TUint8)iBuf.Size();									// bLength

   206 	iBuf[1] = KUsbDescType_Config;							// bDescriptorType

   207 	SetWord(2, KUsbDescSize_Config);						// wTotalLength

   208 	iBuf[4] = 0;											// bNumInterfaces

   209 	iBuf[5] = aConfigurationValue;							// bConfigurationValue

   210 	iBuf[6] = 0;											// iConfiguration

   211 	iBuf[7] = (TUint8)(0x80 | (aSelfPowered ? 0x40 : 0) | (aRemoteWakeup ? 0x20 : 0)); // bmAttributes (bit 7 always 1)

   212 	iBuf[8] = (TUint8)(aMaxPower / 2);								// MaxPower (2mA units!)

   213 	return KErrNone;

   214 	}

   217 // --- TUsbcInterfaceDescriptor

   219 TUsbcInterfaceDescriptor::TUsbcInterfaceDescriptor()

   220 	: iBuf()

   221   	{

   222  	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcInterfaceDescriptor::TUsbcInterfaceDescriptor()")));

   223 	}

   226 TUsbcInterfaceDescriptor* TUsbcInterfaceDescriptor::New(TUint8 aInterfaceNumber, TUint8 aAlternateSetting,

   227 														TInt aNumEndpoints, const TUsbcClassInfo& aClassInfo)

   228 	{

   229 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcInterfaceDescriptor::New()")));

   230 	TUsbcInterfaceDescriptor* self = new TUsbcInterfaceDescriptor();

   231 	if (self)

   232 		{

   233 		if (self->Construct(aInterfaceNumber, aAlternateSetting, aNumEndpoints, aClassInfo) != KErrNone)

   234 			{

   235 			delete self;

   236 			return NULL;

   237 			}

   238 		}

   239 	return self;

   240 	}

   243 TInt TUsbcInterfaceDescriptor::Construct(TUint8 aInterfaceNumber, TUint8 aAlternateSetting,

   244 										 TInt aNumEndpoints, const TUsbcClassInfo& aClassInfo)

   245 	{

   246 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcInterfaceDescriptor::Construct()")));

   247 	iBuf.SetMax();

   248 	SetBufferPointer(iBuf);

   249 	iBuf[0] = (TUint8)iBuf.Size();									// bLength

   250 	iBuf[1] = KUsbDescType_Interface;						// bDescriptorType

   251 	iBuf[2] = aInterfaceNumber;								// bInterfaceNumber

   252 	iBuf[3] = aAlternateSetting;							// bAlternateSetting

   253 	iBuf[4] = (TUint8)aNumEndpoints;								// bNumEndpoints

   254 	iBuf[5] = (TUint8)aClassInfo.iClassNum;							// bInterfaceClass

   255 	iBuf[6] = (TUint8)aClassInfo.iSubClassNum;						// bInterfaceSubClass

   256 	iBuf[7] = (TUint8)aClassInfo.iProtocolNum;						// bInterfaceProtocol

   257 	iBuf[8] = 0;											// iInterface

   258 	return KErrNone;

   259 	}

   262 // --- TUsbcEndpointDescriptor

   264 TUsbcEndpointDescriptor::TUsbcEndpointDescriptor()

   265 	: iBuf()

   266   	{

   267  	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcEndpointDescriptor::TUsbcEndpointDescriptor()")));

   268 	}

   271 TUsbcEndpointDescriptor* TUsbcEndpointDescriptor::New(TUint8 aEndpointAddress,

   272 													  const TUsbcEndpointInfo& aEpInfo)

   273 	{

   274 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcEndpointDescriptor::New()")));

   275 	TUsbcEndpointDescriptor* self = new TUsbcEndpointDescriptor();

   276 	if (self)

   277 		{

   278 		if (self->Construct(aEndpointAddress, aEpInfo) != KErrNone)

   279 			{

   280 			delete self;

   281 			return NULL;

   282 			}

   283 		}

   284 	return self;

   285 	}

   288 TInt TUsbcEndpointDescriptor::Construct(TUint8 aEndpointAddress, const TUsbcEndpointInfo& aEpInfo)

   289 	{

   290 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcEndpointDescriptor::Construct()")));

   291 	iBuf.SetMax();

   292 	SetBufferPointer(iBuf);

   293 	iBuf[0] = (TUint8)iBuf.Size();									// bLength

   294 	iBuf[1] = KUsbDescType_Endpoint;						// bDescriptorType

   295  	iBuf[2] = aEndpointAddress;								// bEndpointAddress

   296 	iBuf[3] = (TUint8)EpTypeMask2Value(aEpInfo.iType);				// bmAttributes

   297 	SetWord(4, (TUint8)aEpInfo.iSize);								// wMaxPacketSize

   298 	iBuf[6] = (TUint8)aEpInfo.iInterval;							// bInterval

   299 	return KErrNone;

   300 	}

   303 // --- TUsbcAudioEndpointDescriptor

   305 TUsbcAudioEndpointDescriptor::TUsbcAudioEndpointDescriptor()

   306 	: iBuf()

   307   	{

   308  	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcAudioEndpointDescriptor::TUsbcAudioEndpointDescriptor()")));

   309 	}

   312 TUsbcAudioEndpointDescriptor* TUsbcAudioEndpointDescriptor::New(TUint8 aEndpointAddress,

   313 																const TUsbcEndpointInfo& aEpInfo)

   314 	{

   315 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcAudioEndpointDescriptor::New()")));

   316 	TUsbcAudioEndpointDescriptor* self = new TUsbcAudioEndpointDescriptor();

   317 	if (self)

   318 		{

   319 		if (self->Construct(aEndpointAddress, aEpInfo) != KErrNone)

   320 			{

   321 			delete self;

   322 			return NULL;

   323 			}

   324 		}

   325 	return self;

   326 	}

   329 TInt TUsbcAudioEndpointDescriptor::Construct(TUint8 aEndpointAddress, const TUsbcEndpointInfo& aEpInfo)

   330 	{

   331 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcAudioEndpointDescriptor::Construct()")));

   332 	iBuf.SetMax();

   333 	SetBufferPointer(iBuf);

   334 	iBuf[0] = (TUint8)iBuf.Size();									// bLength

   335 	iBuf[1] = KUsbDescType_Endpoint;						// bDescriptorType

   336  	iBuf[2] = aEndpointAddress;								// bEndpointAddress

   337 	iBuf[3] = (TUint8)EpTypeMask2Value(aEpInfo.iType);				// bmAttributes

   338 	SetWord(4, (TUint8)aEpInfo.iSize);								// wMaxPacketSize

   339 	iBuf[6] = (TUint8)aEpInfo.iInterval;							// bInterval

   340 	iBuf[7] = 0;

   341 	iBuf[8] = 0;

   342 	return KErrNone;

   343 	}

   346 // --- TUsbcClassSpecificDescriptor

   348 TUsbcClassSpecificDescriptor::TUsbcClassSpecificDescriptor()

   349 	: iBuf(NULL)

   350   	{

   351  	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcClassSpecificDescriptor::TUsbcClassSpecificDescriptor()")));

   352 	}

   355 TUsbcClassSpecificDescriptor::~TUsbcClassSpecificDescriptor()

   356 	{

   357 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcClassSpecificDescriptor::~TUsbcClassSpecificDescriptor()")));

   358 	delete iBuf;

   359 	}

   362 TUsbcClassSpecificDescriptor* TUsbcClassSpecificDescriptor::New(TUint8 aType, TInt aSize)

   363 	{

   364 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcClassSpecificDescriptor::New()")));

   365 	TUsbcClassSpecificDescriptor* self = new TUsbcClassSpecificDescriptor();

   366 	if (self)

   367 		{

   368 		if (self->Construct(aType, aSize) != KErrNone)

   369 			{

   370 			delete self;

   371 			return NULL;

   372 			}

   373 		}

   374 	return self;

   375 	}

   378 TInt TUsbcClassSpecificDescriptor::Construct(TUint8 aType, TInt aSize)

   379 	{

   380 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcClassSpecificDescriptor::Construct()")));

   381 	__NEWPLATBUF(iBuf, aSize);

   382 	if (!iBuf)

   383 		{

   384 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: Allocation of CS desc buffer failed")));

   385 		return KErrNoMemory;

   386 		}

   387 	SetBufferPointer(*iBuf);

   388 	SetByte(1, aType);										// bDescriptorType

   389 	return KErrNone;

   390 	}

   393 // --- TUsbcStringDescriptorBase

   395 TUsbcStringDescriptorBase::TUsbcStringDescriptorBase()

   396 	: /*iIndex(0),*/ iSBuf(0), iBufPtr(NULL, 0)

   397 	{

   398 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcStringDescriptorBase::TUsbcStringDescriptorBase()")));

   399 	}

   402 TUsbcStringDescriptorBase::~TUsbcStringDescriptorBase()

   403 	{

   404 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcStringDescriptorBase::~TUsbcStringDescriptorBase()")));

   405 	}

   408 TUint16 TUsbcStringDescriptorBase::Word(TUint aPosition) const

   409 	{

   410 	if (aPosition <= 1)

   411 		{

   412 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("TUsbcStringDescriptorBase::Word: Error: Word(%d) in string descriptor!"), aPosition));

   413 		return 0;

   414 		}

   415 	else

   416 		{

   417 		// since iBufPtr[0] is actually string descriptor byte index 2,

   418 		// we have to subtract 2 from the absolute position.

   419 		return SWAP_BYTES_16(*reinterpret_cast<const TUint16*>(&iBufPtr[aPosition - 2]));

   420 		}

   421 	}

   424 TInt TUsbcStringDescriptorBase::GetDescriptorData(TUint8* aBuffer) const

   425 	{

   426 	aBuffer[0] = iSBuf[0];

   427 	aBuffer[1] = iSBuf[1];

   428 	__MEMCPY(&aBuffer[2], iBufPtr.Ptr(), iBufPtr.Size());

   429 	return Size();

   430 	}

   433 TInt TUsbcStringDescriptorBase::GetDescriptorData(TUint8* aBuffer, TInt aMaxSize) const

   434 	{

   435 	if (aMaxSize < Size())

   436 		{

   437 		// No use to copy only half a string

   438 		return 0;

   439 		}

   440 	return GetDescriptorData(aBuffer);

   441 	}

   444 const TDes8& TUsbcStringDescriptorBase::StringData() const

   445 	{

   446 	return iBufPtr;

   447 	}

   450 TDes8& TUsbcStringDescriptorBase::StringData()

   451 	{

   452 	return iBufPtr;

   453 	}

   456 TInt TUsbcStringDescriptorBase::Size() const

   457 	{

   458 	return iSBuf[0];

   459 	}

   462 void TUsbcStringDescriptorBase::SetBufferPointer(const TDesC8& aDes)

   463 	{

   464 	iBufPtr.Set(const_cast<TUint8*>(aDes.Ptr()), aDes.Size(), aDes.Size());

   465 	}

   468 // --- TUsbcStringDescriptor

   470 TUsbcStringDescriptor::TUsbcStringDescriptor()

   471 	: iBuf(NULL)

   472 	{

   473 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcStringDescriptor::TUsbcStringDescriptor()")));

   474 	}

   477 TUsbcStringDescriptor::~TUsbcStringDescriptor()

   478 	{

   479 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcStringDescriptor::~TUsbcStringDescriptor()")));

   480 	delete iBuf;

   481 	}

   484 TUsbcStringDescriptor* TUsbcStringDescriptor::New(const TDesC8& aString)

   485 	{

   486 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcStringDescriptor::New")));

   487 	TUsbcStringDescriptor* self = new TUsbcStringDescriptor();

   488 	if (self)

   489 		{

   490 		if (self->Construct(aString) != KErrNone)

   491 			{

   492 			delete self;

   493 			return NULL;

   494 			}

   495 		}

   496 	return self;

   497 	}

   500 TInt TUsbcStringDescriptor::Construct(const TDesC8& aString)

   501 	{

   502 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcStringDescriptor::Construct")));

   503 	__NEWPLATBUF(iBuf, aString.Size());

   504 	if (!iBuf)

   505 		{

   506 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: Allocation of string buffer failed")));

   507 		return KErrNoMemory;

   508 		}

   509 	SetBufferPointer(*iBuf);

   510 	iBufPtr.Copy(aString);

   511 	iSBuf.SetMax();

   512 	iSBuf[0] = (TUint8)(iBuf->Size() + 2); // Bytes

   513 	iSBuf[1] = KUsbDescType_String;

   514 	return KErrNone;

   515 	}

   518 // --- TUsbcLangIdDescriptor

   520 TUsbcLangIdDescriptor::TUsbcLangIdDescriptor()

   521 	: iBuf(NULL)

   522 	{

   523 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcLangIdDescriptor::TUsbcLangIdDescriptor()")));

   524 	}

   527 TUsbcLangIdDescriptor::~TUsbcLangIdDescriptor()

   528 	{

   529 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcLangIdDescriptor::~TUsbcLangIdDescriptor()")));

   530 	}

   533 TUsbcLangIdDescriptor* TUsbcLangIdDescriptor::New(TUint16 aLangId)

   534 	{

   535 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcLangIdDescriptor::New")));

   536 	TUsbcLangIdDescriptor* self = new TUsbcLangIdDescriptor();

   537 	if (self)

   538 		{

   539 		if (self->Construct(aLangId) != KErrNone)

   540 			{

   541 			delete self;

   542 			return NULL;

   543 			}

   544 		}

   545 	return self;

   546 	}

   549 TInt TUsbcLangIdDescriptor::Construct(TUint16 aLangId)

   550 	{

   551 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcLangIdDescriptor::Construct")));

   552 	iBuf.SetMax();

   553 	SetBufferPointer(iBuf);

   554 	iBufPtr[0] = LowByte(SWAP_BYTES_16(aLangId));			// Language ID value

   555 	iBufPtr[1] = HighByte(SWAP_BYTES_16(aLangId));

   556 	iSBuf.SetMax();

   557 	iSBuf[0] = (TUint8)(iBuf.Size() + 2);								// Bytes

   558 	iSBuf[1] = KUsbDescType_String;

   559 	return KErrNone;

   560 	}

   563 // --- TUsbcDescriptorPool

   565 TUsbcDescriptorPool::TUsbcDescriptorPool(TUint8* aEp0_TxBuf)

   566 //

   567 //  The constructor for this class.

   568 //

   569 	: iDescriptors(4), iStrings(4),	iIfcIdx(0), iEp0_TxBuf(aEp0_TxBuf) // 4 = granularity

   570 	{

   571 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorPool::TUsbcDescriptorPool()")));

   572 	}

   575 TUsbcDescriptorPool::~TUsbcDescriptorPool()

   576 	{

   577 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorPool::~TUsbcDescriptorPool()")));

   578 	// The destructor of each <class T> object is called before the objects themselves are destroyed.

   579 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("  iDescriptors.Count(): %d"), iDescriptors.Count()));

   580 	iDescriptors.ResetAndDestroy();

   581 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("  iStrings.Count(): %d"), iStrings.Count()));

   582 	iStrings.ResetAndDestroy();

   583 	}

   586 TInt TUsbcDescriptorPool::Init(TUsbcDeviceDescriptor* aDeviceDesc, TUsbcConfigDescriptor* aConfigDesc,

   587 							   TUsbcLangIdDescriptor* aLangId, TUsbcStringDescriptor* aManufacturer,

   588 							   TUsbcStringDescriptor* aProduct, TUsbcStringDescriptor* aSerialNum,

   589 							   TUsbcStringDescriptor* aConfig)

   590 	{

   591 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorPool::Init()")));

   592 	iDescriptors.Insert(aDeviceDesc, 0);

   593 	iDescriptors.Insert(aConfigDesc, 1);

   594 	if (!aLangId || !aManufacturer || !aProduct || !aSerialNum || !aConfig)

   595 		{

   596 		// USB spec p. 202 says: "A USB device may omit all string descriptors."

   597 		// So, either ALL string descriptors are supplied or none at all.

   598 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: No string descriptor(s)")));

   599 		return KErrArgument;

   600 		}

   601 	iStrings.Insert(aLangId, 0);

   602 	iStrings.Insert(aManufacturer, 1);

   603 	iStrings.Insert(aProduct, 2);

   604 	iStrings.Insert(aSerialNum, 3);

   605 	iStrings.Insert(aConfig, 4);

   606 	// set string indices

   607 	iDescriptors[0]->SetByte(14, 1);						// Device.iManufacturer

   608 	iDescriptors[0]->SetByte(15, 2);						// Device.iProduct

   609 	iDescriptors[0]->SetByte(16, 3);						// Device.iSerialNumber

   610 	iDescriptors[1]->SetByte( 6, 4);						// Config.iConfiguration

   611 	return KErrNone;

   612 	}

   615 TInt TUsbcDescriptorPool::FindDescriptor(TUint8 aType, TUint8 aIndex, TUint16 aLangid, TInt& aSize) const

   616 	{

   617 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorPool::FindDescriptor()")));

   618 	TInt result = KErrGeneral;

   620 	switch(aType)

   621 		{

   622 	case KUsbDescType_Device:

   623 		if (aLangid != 0)

   624 			{

   625 			__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: bad langid: 0x%04x"), aLangid));

   626 			result = KErrGeneral;							// bad langid

   627 			}

   628 		else if (aIndex > 0)

   629 			{

   630 			__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: bad device index: %d"), aIndex));

   631 			result = KErrGeneral;							// we have only one device

   632 			}

   633 		else

   634 			{

   635 			aSize = GetDeviceDescriptor();

   636 			result = KErrNone;

   637 			}

   638 		break;

   639 	case KUsbDescType_Config:

   640 		if (aLangid != 0)

   641 			{

   642 			__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: bad langid: 0x%04x"), aLangid));

   643 			result = KErrGeneral;							// bad langid

   644 			}

   645 		else if (aIndex > 0)

   646 			{

   647 			__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: bad config index: %d"), aIndex));

   648 			result = KErrGeneral;							// we have only one configuration

   649 			}

   650 		else

   651 			{

   652 			aSize = GetConfigDescriptor();

   653 			result = KErrNone;

   654 			}

   655 		break;

   656 	case KUsbDescType_String:

   657 		if ((aLangid != 0) &&								// 0 addresses the LangId array

   658 			(aLangid != iStrings[0]->Word(2)))				// we have just one (this) language

   659 			{

   660 			__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: bad langid (0x%04x requested, 0x%04x supported)"),

   661 											  aLangid, iStrings[0]->Word(2)));

   662 			result = KErrGeneral;							// bad langid

   663 			}

   664 		else if (aIndex >= iStrings.Count())

   665 			{

   666 			__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: bad string index: %d"), aIndex));

   667 			result = KErrGeneral;

   668 			}

   669 		else

   670 			{

   671 			aSize = GetStringDescriptor(aIndex);

   672 			result = KErrNone;

   673 			}

   674 		break;

   675 	case KUsbDescType_CS_Interface:

   676 		/* fall through */

   677 	case KUsbDescType_CS_Endpoint:

   678 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Warning: finding of class specific descriptors not supported")));

   679 		break;

   680 	default:

   681 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: unknown descriptor type requested: %d"), aType));

   682 		result = KErrGeneral;

   683 		break;

   684 		}

   686 	return result;

   687 	}

   690 void TUsbcDescriptorPool::InsertDescriptor(TUsbcDescriptorBase* aDesc)

   691 	{

   692 	switch (aDesc->Type())

   693 		{

   694 	case KUsbDescType_Device:

   695 		InsertDevDesc(aDesc);

   696 		break;

   697 	case KUsbDescType_Config:

   698 		InsertConfigDesc(aDesc);

   699 		break;

   700 	case KUsbDescType_Interface:

   701 		InsertIfcDesc(aDesc);

   702 		break;

   703 	case KUsbDescType_Endpoint:

   704 		InsertEpDesc(aDesc);

   705 		break;

   706 	case KUsbDescType_CS_Interface:

   707 		/* fall through */

   708 	case KUsbDescType_CS_Endpoint:

   709 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Warning: inserting class specific descriptors not supported")));

   710 		break;

   711 	default:

   712 		__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorPool::InsertDescriptor: Error: invalid type")));

   713 		break;

   714 		}

   715 	}

   718 void TUsbcDescriptorPool::SetIfcStringDescriptor(TUsbcStringDescriptor* aDesc, TInt aNumber, TInt aSetting)

   719 	{

   720 	TInt i = FindIfcDescriptor(aNumber, aSetting);

   721 	if (i < 0)

   722 		{

   723 		__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorPool::SetIfcStringDescriptor: error")));

   724 		return;

   725 		}

   726 	// Set (append) string descriptor for specified interface

   727 	iStrings.Append(aDesc);

   728 	// Update this ifc descriptors' string index field

   729 	const TInt str_idx = iStrings.Count() - 1;

   730 	iDescriptors[i]->SetByte(8, (TUint8)str_idx);

   731 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("  String for ifc %d/%d (@ pos %d): \"%S\""), aNumber, aSetting, str_idx,

   732 									&iStrings[str_idx]->StringData()));

   733 	}

   736 void TUsbcDescriptorPool::DeleteIfcDescriptor(TInt aNumber, TInt aSetting)

   737 	{

   738 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorPool::DeleteIfcDescriptor(%d, %d)"), aNumber, aSetting));

   739 	TInt i = FindIfcDescriptor(aNumber, aSetting);

   740 	if (i < 0)

   741 		{

   742 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING(" > Error: descriptor not found")));

   743 		return;

   744 		}

   745 	// Delete (if necessary) specified interface's string descriptor

   746 	TInt si = iDescriptors[i]->Byte(8);

   747 	if (si != 0)

   748 		{

   749 		DeleteString(si);

   750 		}

   751 	// Delete specified ifc setting + all its cs descriptors + all its endpoints + all their cs descriptors:

   752 	// find position of the next interface descriptor: we need to delete everything in between

   753 	const TInt count = iDescriptors.Count();

   754 	TInt j = i, n = 1;

   755 	while (++j < count && iDescriptors[j]->Type() != KUsbDescType_Interface)

   756 		++n;

   757 	DeleteDescriptors(i, n);

   758 	// Update all the following interfaces' bInterfaceNumber field if required

   759 	// (because these descriptors might have moved down by one position)

   760 	UpdateIfcNumbers(aNumber);

   761 	// Update (if necessary) all interfaces' string index field

   762 	if (si != 0)

   763 		{

   764 		UpdateIfcStringIndexes(si);

   765 		}

   766 	iIfcIdx = 0;											// ifc index no longer valid

   767 	}

   770 // The TC in many of the following functions stands for 'ThreadCopy',

   771 // because that's what's happening there.

   773 TInt TUsbcDescriptorPool::GetDeviceDescriptorTC(DThread* aThread, TDes8& aBuffer) const

   774 	{

   775 	return __THREADWRITE(aThread, &aBuffer, iDescriptors[0]->DescriptorData());

   776 	}

   779 TInt TUsbcDescriptorPool::SetDeviceDescriptorTC(DThread* aThread, const TDes8& aBuffer)

   780 	{

   781 	TBuf8<KUsbDescSize_Device> device;

   782 	TInt r = __THREADREAD(aThread, &aBuffer, device);

   783 	if (r != KErrNone)

   784 		{

   785 		return r;

   786 		}

   787 	iDescriptors[0]->SetByte(2, device[2]);					// bcdUSB

   788 	iDescriptors[0]->SetByte(3, device[3]);					// bcdUSB (part II)

   789 	iDescriptors[0]->SetByte(4, device[4]);					// bDeviceClass

   790 	iDescriptors[0]->SetByte(5, device[5]);					// bDeviceSubClass

   791 	iDescriptors[0]->SetByte(6, device[6]);					// bDeviceProtocol

   792 	iDescriptors[0]->SetByte(8, device[8]);					// idVendor

   793 	iDescriptors[0]->SetByte(9, device[9]);					// idVendor (part II)

   794 	iDescriptors[0]->SetByte(10, device[10]);				// idProduct

   795 	iDescriptors[0]->SetByte(11, device[11]);				// idProduct (part II)

   796 	iDescriptors[0]->SetByte(12, device[12]);				// bcdDevice

   797 	iDescriptors[0]->SetByte(13, device[13]);				// bcdDevice (part II)

   798 	return KErrNone;

   799 	}

   802 TInt TUsbcDescriptorPool::GetConfigurationDescriptorTC(DThread* aThread, TDes8& aBuffer) const

   803 	{

   804 	return __THREADWRITE(aThread, &aBuffer, iDescriptors[1]->DescriptorData());

   805 	}

   808 TInt TUsbcDescriptorPool::SetConfigurationDescriptorTC(DThread* aThread, const TDes8& aBuffer)

   809 	{

   810 	TBuf8<KUsbDescSize_Config> config;

   811 	TInt r = __THREADREAD(aThread, &aBuffer, config);

   812 	if (r != KErrNone)

   813 		{

   814 		return r;

   815 		}

   816 	iDescriptors[1]->SetByte(7, config[7]);					// bmAttributes

   817 	iDescriptors[1]->SetByte(8, config[8]);					// bMaxPower

   818 	return KErrNone;

   819 	}

   822 TInt TUsbcDescriptorPool::GetInterfaceDescriptorTC(DThread* aThread, TDes8& aBuffer,

   823 												   TInt aInterface, TInt aSetting) const

   824 	{

   825 	TInt i = FindIfcDescriptor(aInterface, aSetting);

   826 	if (i < 0)

   827 		{

   828 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such interface")));

   829 		return KErrNotFound;

   830 		}

   831 	return __THREADWRITE(aThread, &aBuffer, iDescriptors[i]->DescriptorData());

   832 	}

   835 TInt TUsbcDescriptorPool::SetInterfaceDescriptor(const TDes8& aBuffer, TInt aInterface, TInt aSetting)

   836 	{

   837 	TInt i = FindIfcDescriptor(aInterface, aSetting);

   838 	if (i < 0)

   839 		{

   840 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such interface")));

   841 		return KErrNotFound;

   842 		}

   843 	iDescriptors[i]->SetByte(2, aBuffer[2]);				// bInterfaceNumber

   844 	iDescriptors[i]->SetByte(5, aBuffer[5]);				// bInterfaceClass

   845 	iDescriptors[i]->SetByte(6, aBuffer[6]);				// bInterfaceSubClass

   846 	iDescriptors[i]->SetByte(7, aBuffer[7]);				// bInterfaceProtocol

   847 	return KErrNone;

   848 	}

   851 TInt TUsbcDescriptorPool::GetEndpointDescriptorTC(DThread* aThread, TDes8& aBuffer,

   852 												  TInt aInterface, TInt aSetting, TUint8 aEndpointAddress) const

   853 	{

   854 	TInt i = FindEpDescriptor(aInterface, aSetting, aEndpointAddress);

   855 	if (i < 0)

   856 		{

   857 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such endpoint")));

   858 		return KErrNotFound;

   859 		}

   860 	return __THREADWRITE(aThread, &aBuffer, iDescriptors[i]->DescriptorData());

   861 	}

   864 TInt TUsbcDescriptorPool::SetEndpointDescriptorTC(DThread* aThread, const TDes8& aBuffer,

   865 												  TInt aInterface, TInt aSetting, TUint8 aEndpointAddress)

   866 	{

   867 	TInt i = FindEpDescriptor(aInterface, aSetting, aEndpointAddress);

   868 	if (i < 0)

   869 		{

   870 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such endpoint")));

   871 		return KErrNotFound;

   872 		}

   873 	TBuf8<KUsbDescSize_AudioEndpoint> ep;					// it could be an audio endpoint

   874 	TInt r = __THREADREAD(aThread, &aBuffer, ep);

   875 	if (r != KErrNone)

   876 		{

   877 		return r;

   878 		}

   879 	iDescriptors[i]->SetByte(3, ep[3]);						// bmAttributes

   880 	iDescriptors[i]->SetByte(6, ep[6]);						// bInterval

   881 	if (static_cast<TUint>(iDescriptors[i]->Size()) == KUsbDescSize_AudioEndpoint)

   882 		{

   883 		iDescriptors[i]->SetByte(7, ep[7]);					// bRefresh

   884 		iDescriptors[i]->SetByte(8, ep[8]);					// bSynchAddress

   885 		}

   886 	return KErrNone;

   887 	}

   890 TInt TUsbcDescriptorPool::GetEndpointDescriptorSize(TInt aInterface, TInt aSetting, TUint8 aEndpointAddress,

   891 													TInt& aSize) const

   892 	{

   893 	TInt i = FindEpDescriptor(aInterface, aSetting, aEndpointAddress);

   894 	if (i < 0)

   895 		{

   896 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such endpoint")));

   897 		return KErrNotFound;

   898 		}

   899 	aSize = iDescriptors[i]->Size();

   900 	return KErrNone;

   901 	}

   904 TInt TUsbcDescriptorPool::GetCSInterfaceDescriptorTC(DThread* aThread, TDes8& aBuffer,

   905 													 TInt aInterface, TInt aSetting) const

   906 	{

   907 	// first find the interface

   908 	TInt i = FindIfcDescriptor(aInterface, aSetting);

   909 	if (i < 0)

   910 		{

   911 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such interface")));

   912 		return KErrNotFound;

   913 		}

   914 	TInt r = KErrNotFound;

   915 	TInt offset = 0;

   916 	const TInt count = iDescriptors.Count();

   917 	while (++i < count && iDescriptors[i]->Type() == KUsbDescType_CS_Interface)

   918 		{

   919 		r = __THREADWRITEOFFSET(aThread, &aBuffer, iDescriptors[i]->DescriptorData(), offset);

   920 		if (r != KErrNone)

   921 			break;

   922 		offset += iDescriptors[i]->Size();

   923 		}

   924 	return r;

   925 	}

   928 TInt TUsbcDescriptorPool::SetCSInterfaceDescriptorTC(DThread* aThread, const TDes8& aBuffer,

   929 													 TInt aInterface, TInt aSetting, TInt aSize)

   930 	{

   931 	// first find the interface

   932 	TInt i = FindIfcDescriptor(aInterface, aSetting);

   933 	if (i < 0)

   934 		{

   935 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such interface")));

   936 		return KErrNotFound;

   937 		}

   938 	// find a position where to insert the new class specific interface descriptor(s)

   939 	const TInt count = iDescriptors.Count();

   940 	while (++i < count && iDescriptors[i]->Type() == KUsbDescType_CS_Interface)

   941 		;

   942 	// create a new cs descriptor

   943 	TUsbcClassSpecificDescriptor* desc = TUsbcClassSpecificDescriptor::New(KUsbDescType_CS_Interface, aSize);

   944 	if (!desc)

   945 		{

   946 		return KErrNoMemory;

   947 		}

   948 	iDescriptors.Insert(desc, i);

   949 	if (iDescriptors[1])

   950 		{

   951 		// if there's a config descriptor (and not a NULL pointer), we update its wTotalLength field

   952 		iDescriptors[1]->SetWord(2, (TUint8)(iDescriptors[1]->Word(2) + aSize));

   953 		}

   954 	// copy contents from user side

   955 	return __THREADREAD(aThread, &aBuffer, iDescriptors[i]->DescriptorData());

   956 	}

   959 TInt TUsbcDescriptorPool::GetCSInterfaceDescriptorSize(TInt aInterface, TInt aSetting, TInt& aSize) const

   960 	{

   961 	// first find the interface

   962 	TInt i = FindIfcDescriptor(aInterface, aSetting);

   963 	if (i < 0)

   964 		{

   965 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such interface")));

   966 		return KErrNotFound;

   967 		}

   968 	TInt r = KErrNotFound;

   969 	TInt size = 0;

   970 	const TInt count = iDescriptors.Count();

   971 	while (++i < count && iDescriptors[i]->Type() == KUsbDescType_CS_Interface)

   972 		{

   973 		size += iDescriptors[i]->Size();

   974 		r = KErrNone;

   975 		}

   976 	if (r == KErrNone)

   977 		aSize = size;

   978 	return r;

   979 	}

   982 TInt TUsbcDescriptorPool::GetCSEndpointDescriptorTC(DThread* aThread, TDes8& aBuffer, TInt aInterface,

   983 													TInt aSetting, TUint8 aEndpointAddress) const

   984 	{

   985 	// first find the endpoint

   986 	TInt i = FindEpDescriptor(aInterface, aSetting, aEndpointAddress);

   987 	if (i < 0)

   988 		{

   989 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such endpoint")));

   990 		return KErrNotFound;

   991 		}

   992 	TInt r = KErrNotFound;

   993 	TInt offset = 0;

   994 	const TInt count = iDescriptors.Count();

   995 	while (++i < count && iDescriptors[i]->Type() == KUsbDescType_CS_Endpoint)

   996 		{

   997 		__THREADWRITEOFFSET(aThread, &aBuffer, iDescriptors[i]->DescriptorData(), offset);

   998 		if (r != KErrNone)

   999 			break;

  1000 		offset += iDescriptors[i]->Size();

  1001 		}

  1002 	return r;

  1003 	}

  1006 TInt TUsbcDescriptorPool::SetCSEndpointDescriptorTC(DThread* aThread, const TDes8& aBuffer, TInt aInterface,

  1007 													TInt aSetting, TUint8 aEndpointAddress, TInt aSize)

  1008 	{

  1009 	// first find the endpoint

  1010 	TInt i = FindEpDescriptor(aInterface, aSetting, aEndpointAddress);

  1011 	if (i < 0)

  1012 		{

  1013 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such endpoint")));

  1014 		return KErrNotFound;

  1015 		}

  1016 	// find a position where to insert the new class specific endpoint descriptor(s)

  1017 	const TInt count = iDescriptors.Count();

  1018 	while (++i < count && iDescriptors[i]->Type() == KUsbDescType_CS_Endpoint)

  1019 		;

  1020 	// create a new cs descriptor

  1021 	TUsbcClassSpecificDescriptor* desc = TUsbcClassSpecificDescriptor::New(KUsbDescType_CS_Endpoint, aSize);

  1022 	if (!desc)

  1023 		{

  1024 		return KErrNoMemory;

  1025 		}

  1026 	iDescriptors.Insert(desc, i);

  1027 	if (iDescriptors[1])

  1028 		{

  1029 		// if there's a config descriptor (and not a NULL pointer), we update its wTotalLength field

  1030 		iDescriptors[1]->SetWord(2, (TUint8)(iDescriptors[1]->Word(2) + aSize));

  1031 		}

  1032 	// copy contents from user side

  1033 	return __THREADREAD(aThread, &aBuffer, iDescriptors[i]->DescriptorData());

  1034 	}

  1037 TInt TUsbcDescriptorPool::GetCSEndpointDescriptorSize(TInt aInterface, TInt aSetting,

  1038 													  TUint8 aEndpointAddress, TInt& aSize) const

  1039 	{

  1040 	// first find the endpoint

  1041 	TInt i = FindEpDescriptor(aInterface, aSetting, aEndpointAddress);

  1042 	if (i < 0)

  1043 		{

  1044 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such endpoint")));

  1045 		return KErrNotFound;

  1046 		}

  1047 	TInt r = KErrNotFound;

  1048 	TInt size = 0;

  1049 	const TInt count = iDescriptors.Count();

  1050 	while (++i < count && iDescriptors[i]->Type() == KUsbDescType_CS_Endpoint)

  1051 		{

  1052 		size += iDescriptors[i]->Size();

  1053 		r = KErrNone;

  1054 		}

  1055 	if (r == KErrNone)

  1056 		aSize = size;

  1057 	return r;

  1058 	}

  1061 TInt TUsbcDescriptorPool::GetManufacturerStringDescriptorTC(DThread* aThread, TDes8& aString) const

  1062 	{

  1063 	return GetDeviceStringDescriptorTC(aThread, aString, KUsbDescStringIndex_Manufact);

  1064 	}

  1067 TInt TUsbcDescriptorPool::SetManufacturerStringDescriptorTC(DThread* aThread, const TDes8& aString)

  1068 	{

  1069 	return SetDeviceStringDescriptorTC(aThread, aString, KUsbDescStringIndex_Manufact);

  1070 	}

  1073 TInt TUsbcDescriptorPool::GetProductStringDescriptorTC(DThread* aThread, TDes8& aString) const

  1074 	{

  1075 	return GetDeviceStringDescriptorTC(aThread, aString, KUsbDescStringIndex_Product);

  1076 	}

  1079 TInt TUsbcDescriptorPool::SetProductStringDescriptorTC(DThread* aThread, const TDes8& aString)

  1080 	{

  1081 	return SetDeviceStringDescriptorTC(aThread, aString, KUsbDescStringIndex_Product);

  1082 	}

  1085 TInt TUsbcDescriptorPool::GetSerialNumberStringDescriptorTC(DThread* aThread, TDes8& aString) const

  1086 	{

  1087 	return GetDeviceStringDescriptorTC(aThread, aString, KUsbDescStringIndex_Serial);

  1088 	}

  1091 TInt TUsbcDescriptorPool::SetSerialNumberStringDescriptorTC(DThread* aThread, const TDes8& aString)

  1092 	{

  1093 	return SetDeviceStringDescriptorTC(aThread, aString, KUsbDescStringIndex_Serial);

  1094 	}

  1097 TInt TUsbcDescriptorPool::GetConfigurationStringDescriptorTC(DThread* aThread, TDes8& aString) const

  1098 	{

  1099 	TBuf8<KUsbDescSize_Config> config_desc;

  1100 	iDescriptors[1]->GetDescriptorData(config_desc);

  1101 	const TInt str_idx = config_desc[KUsbDescStringIndex_Config];

  1102 	if ((str_idx > 0) && iStrings[str_idx])

  1103 		{

  1104 		__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("  String @ pos %d (conf $): \"%S\""),

  1105 										str_idx, &iStrings[str_idx]->StringData()));

  1106 		return __THREADWRITE(aThread, &aString, iStrings[str_idx]->StringData());

  1107 		}

  1108 	else

  1109 		{

  1110 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no string descriptor @ pos %d!"), str_idx));

  1111 		return KErrNotFound;

  1112 		}

  1113 	}

  1116 TInt TUsbcDescriptorPool::SetConfigurationStringDescriptorTC(DThread* aThread, const TDes8& aString)

  1117 	{

  1118 	// we don't know the length of the string, so we have to allocate memory dynamically

  1119 	TUint strlen = __THREADDESLEN(aThread, &aString);

  1120 	if (strlen > KUsbStringDescStringMaxSize)

  1121 		{

  1122 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Warning: $ descriptor too long - string will be truncated")));

  1123 		strlen = KUsbStringDescStringMaxSize;

  1124 		}

  1126 	HBuf8Plat* strbuf = NULL;

  1127 	__NEWPLATBUF(strbuf, strlen);

  1128 	if (!strbuf)

  1129 		{

  1130 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: Memory allocation for config $ desc string failed (1)")));

  1131 		return KErrNoMemory;

  1132 		}

  1134 	TInt r;

  1135 	__THREADREADPLATBUF(aThread, &aString, strbuf, r);

  1136 	if (r != KErrNone)

  1137 		{

  1138 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: Thread read error")));

  1139 		delete strbuf;

  1140 		return r;

  1141 		}

  1142 	TUsbcStringDescriptor* sd = TUsbcStringDescriptor::New(*strbuf);

  1143 	if (!sd)

  1144 		{

  1145 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: Memory allocation for config $ desc failed (2)")));

  1146 		delete strbuf;

  1147 		return KErrNoMemory;

  1148 		}

  1149 	TBuf8<KUsbDescSize_Config> config_desc;

  1150 	config_desc.FillZ(config_desc.MaxLength());

  1151 	iDescriptors[1]->GetDescriptorData(config_desc);

  1152 	ExchangeStringDescriptor(config_desc[KUsbDescStringIndex_Config], sd);

  1153 	delete strbuf;

  1154 	return r;

  1155 	}

  1158 // --- private ---

  1160 void TUsbcDescriptorPool::InsertDevDesc(TUsbcDescriptorBase* aDesc)

  1161 	{

  1162 	TInt count = iDescriptors.Count();

  1163 	if (count > 0)

  1164 		{

  1165 		DeleteDescriptors(0);								// if there's already something at pos. 0, delete it

  1166 		}

  1167 	iDescriptors.Insert(aDesc, 0);							// in any case: put the new descriptor at position 0

  1168 	}

  1171 void TUsbcDescriptorPool::InsertConfigDesc(TUsbcDescriptorBase* aDesc)

  1172 	{

  1173 	TInt count = iDescriptors.Count();

  1174 	if (count == 0)

  1175 		{

  1176 		TUsbcDescriptorBase* const iNullDesc = NULL;

  1177 		iDescriptors.Append(iNullDesc);						// if array's empty, put a dummy in position 0

  1178 		}

  1179 	else if (count > 1)

  1180 		{

  1181 		DeleteDescriptors(1);								// if there's already something at pos. 1, delete it

  1182 		}

  1183 	iDescriptors.Insert(aDesc, 1);							// in any case: put the new descriptor at position 1

  1184 	// Currently this code assumes, that the config descriptor is inserted _before_ any interface

  1185 	// or endpoint descriptors!

  1186 	if (iDescriptors.Count() != 2)

  1187 		{

  1188 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("TUsbcDescriptorPool::InsertConfigDesc: config descriptor will be invalid!")));

  1189 		}

  1190 	}

  1193 void TUsbcDescriptorPool::InsertIfcDesc(TUsbcDescriptorBase* aDesc)

  1194 	{

  1195 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorPool::InsertIfcDesc()")));

  1196 	TInt count = iDescriptors.Count();

  1197 	if (count < 2)

  1198 		{

  1199 		TUsbcDescriptorBase* const iNullDesc = NULL;

  1200 		iDescriptors.Append(iNullDesc);						// if array's too small, put some dummies in

  1201 		iDescriptors.Append(iNullDesc);

  1202 		}

  1203 	TBool interface_exists = EFalse;						// set to 'true' if we're adding an alternate

  1204 															// setting to an already existing interface

  1205 	TInt i = 2;

  1206 	while (i < count)

  1207 		{

  1208 		if (iDescriptors[i]->Type() == KUsbDescType_Interface)

  1209 			{

  1210 			if (iDescriptors[i]->Byte(2) > aDesc->Byte(2))

  1211 				{

  1212 				// our interface number is less than the one's just found => insert before it (= here)

  1213 				break;

  1214 				}

  1215 			else if (iDescriptors[i]->Byte(2) == aDesc->Byte(2))

  1216 				{

  1217 				interface_exists = ETrue;

  1218 				// same interface number => look at settings number

  1219 				if (iDescriptors[i]->Byte(3) > aDesc->Byte(3))

  1220 					{

  1221 					// our setting number is less than the one's found => insert before (= here)

  1222 					break;

  1223 					}

  1224 				else if (iDescriptors[i]->Byte(3) == aDesc->Byte(3))

  1225 					{

  1226 					__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("TUsbcDescriptorPool::InsertIfcDesc: error: first delete old one!")));

  1227 					return;

  1228 					}

  1229 				}

  1230 			}

  1231 		++i;

  1232 		}

  1233 	iDescriptors.Insert(aDesc, i);							// in any case: put the new descriptor at position i

  1234 	if (iDescriptors[1])

  1235 		{

  1236 		// if there's a config descriptor (and not a NULL pointer), update its wTotalLength field...

  1237 		iDescriptors[1]->SetWord(2, (TUint8)(iDescriptors[1]->Word(2) + KUsbDescSize_Interface));

  1238 		//  and increment bNumInterfaces if this is the first setting for the interface

  1239 		if (!interface_exists)

  1240 			iDescriptors[1]->SetByte(4, (TUint8)(iDescriptors[1]->Byte(4) + 1));

  1241 		}

  1242 	iIfcIdx = i;

  1243 	}

  1246 void TUsbcDescriptorPool::InsertEpDesc(TUsbcDescriptorBase* aDesc)

  1247 	{

  1248 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorPool::InsertEpDesc()")));

  1249 	if (iIfcIdx == 0)

  1250 		{

  1251 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("TUsbcDescriptorPool::InsertEpDesc: error: only after interface")));

  1252 		return;

  1253 		}

  1254 	TInt count = iDescriptors.Count();

  1255 	TInt i = iIfcIdx + 1;

  1256 	while (i < count)

  1257 		{

  1258 		if (iDescriptors[i]->Type() != KUsbDescType_Endpoint)

  1259 			break;

  1260 		++i;

  1261 		}

  1262 	iDescriptors.Insert(aDesc, i);							// put the new descriptor at position i

  1263 	if (iDescriptors[1])

  1264 		{

  1265 		// if there's a config descriptor (and not a NULL pointer), update its wTotalLength field

  1266 		iDescriptors[1]->SetWord(2, (TUint8)(iDescriptors[1]->Word(2) + aDesc->Size()));

  1267 		}

  1268 	}

  1271 TInt TUsbcDescriptorPool::FindIfcDescriptor(TInt aIfcNumber, TInt aIfcSetting) const

  1272 	{

  1273 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorPool::FindIfcDescriptor(%d, %d)"),

  1274 									aIfcNumber, aIfcSetting));

  1275 	TInt count = iDescriptors.Count();

  1276 	for (TInt i = 2; i < count; ++i)

  1277 		{

  1278 		if ((iDescriptors[i]->Type() == KUsbDescType_Interface) &&

  1279 			(iDescriptors[i]->Byte(2) == aIfcNumber) &&

  1280 			(iDescriptors[i]->Byte(3) == aIfcSetting))

  1281 			{

  1282 			return i;

  1283 			}

  1284 		}

  1285 	__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such interface")));

  1286 	return -1;

  1287 	}

  1290 TInt TUsbcDescriptorPool::FindEpDescriptor(TInt aIfcNumber, TInt aIfcSetting, TUint8 aEpAddress) const

  1291 	{

  1292 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorPool::FindEpDescriptor(%d, %d, 0x%02x)"),

  1293 									aIfcNumber, aIfcSetting, aEpAddress));

  1294 	// first find the interface

  1295 	TInt ifc = FindIfcDescriptor(aIfcNumber, aIfcSetting);

  1296 	if (ifc < 0)

  1297 		{

  1298 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such interface")));

  1299 		return ifc;

  1300 		}

  1301 	TInt count = iDescriptors.Count();

  1302 	// then, before the next interface, try to locate the endpoint

  1303 	for (TInt i = ifc + 1; i < count; ++i)

  1304 		{

  1305 		if (iDescriptors[i]->Type() == KUsbDescType_Interface)

  1306 			{

  1307 			__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such endpoint before next interface")));

  1308 			return -1;

  1309 			}

  1310 		else if ((iDescriptors[i]->Type() == KUsbDescType_Endpoint) &&

  1311 				 (iDescriptors[i]->Byte(2) == aEpAddress))

  1312 			{

  1313 			return i;										// found

  1314 			}

  1315 		}

  1316 	__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no such endpoint")));

  1317 	return -1;

  1318 	}

  1321 void TUsbcDescriptorPool::DeleteDescriptors(TInt aIndex, TInt aCount)

  1322 	{

  1323 	if (aCount <= 0)

  1324 		{

  1325 		return;

  1326 		}

  1327 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("  Removing descriptors at index %d:"), aIndex));

  1328 	while (aCount--)

  1329 		{

  1330 		// in this loop we don't decrement aIndex, because after deleting an element

  1331 		// aIndex is already indexing the next one!

  1332 		TUsbcDescriptorBase* ptr = iDescriptors[aIndex];

  1333 		if (iDescriptors[1])

  1334 			{

  1335 			// if there's a config descriptor (and not a NULL pointer),

  1336 			if (ptr->Type() == KUsbDescType_Interface)

  1337 				{

  1338 				__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("  - an interface descriptor")));

  1339 				// if it's an interface descriptor:

  1340 				// we update its wTotalLength field...

  1341 				iDescriptors[1]->SetWord(2, (TUint8)(iDescriptors[1]->Word(2) - KUsbDescSize_Interface));

  1342 				}

  1343 			else if (ptr->Type() == KUsbDescType_Endpoint)

  1344 				{

  1345 				__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("  - an endpoint descriptor")));

  1346 				// if it's an endpoint descriptor:

  1347 				// we only update its wTotalLength field

  1348 				iDescriptors[1]->SetWord(2, (TUint8)(iDescriptors[1]->Word(2) - ptr->Size()));

  1349 				}

  1350 			else if (ptr->Type() == KUsbDescType_CS_Interface || ptr->Type() == KUsbDescType_CS_Endpoint)

  1351 				{

  1352 				__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("  - a class specific descriptor")));

  1353 				// if it's an class specific descriptor:

  1354 				// we only update its wTotalLength field

  1355 				iDescriptors[1]->SetWord(2, (TUint8)(iDescriptors[1]->Word(2) - ptr->Size()));

  1356 				}

  1357 			}

  1358 		iDescriptors.Remove(aIndex);

  1359 		delete ptr;

  1360 		}

  1361 	}

  1364 void TUsbcDescriptorPool::DeleteString(TInt aIndex)

  1365 	{

  1366 	TUsbcStringDescriptorBase* ptr = iStrings[aIndex];

  1367 	iStrings.Remove(aIndex);

  1368 	delete ptr;

  1369 	}

  1372 void TUsbcDescriptorPool::UpdateIfcNumbers(TInt aNumber)

  1373 	{

  1374 	const TInt count = iDescriptors.Count();

  1375 	for (TInt i = 2; i < count; ++i)

  1376 		{

  1377 		if ((iDescriptors[i]->Type() == KUsbDescType_Interface) &&

  1378 			(iDescriptors[i]->Byte(2) == aNumber))

  1379 			{

  1380 			// there's still an interface with 'number' so we don't need to update anything

  1381 			return;

  1382 			}

  1383 		}

  1384 	// if we haven't returned yet, we decrement bNumInterfaces

  1385 	iDescriptors[1]->SetByte(4, (TUint8)(iDescriptors[1]->Byte(4) - 1));

  1386 	}

  1389 void TUsbcDescriptorPool::UpdateIfcStringIndexes(TInt aStringIndex)

  1390 	{

  1391 	// aStringIndex is the index value of the string descriptor that has just been removed.

  1392 	// We update all ifc descriptors with a string index value that is greater than aStringIndex,

  1393 	// because those strings moved all down by one position.

  1394 	//

  1395 	TInt count = iDescriptors.Count();

  1396 	for (TInt i = 2; i < count; ++i)

  1397 		{

  1398 		if ((iDescriptors[i]->Type() == KUsbDescType_Interface) &&

  1399 			(iDescriptors[i]->Byte(8) > aStringIndex))

  1400 			{

  1401 			iDescriptors[i]->SetByte(8, (TUint8)(iDescriptors[i]->Byte(8) - 1));

  1402 			}

  1403 		}

  1404 	}

  1407 //

  1408 // Only used for Ep0 standard requests, so target buffer could be hard-wired.

  1409 //

  1410 TInt TUsbcDescriptorPool::GetDeviceDescriptor() const

  1411 	{

  1412 	return iDescriptors[0]->GetDescriptorData(iEp0_TxBuf, KUsbcBufSz_Ep0Tx);

  1413 	}

  1416 //

  1417 // Only used for Ep0 standard requests, so target buffer could be hard-wired.

  1418 //

  1419 TInt TUsbcDescriptorPool::GetConfigDescriptor() const

  1420 	{

  1421 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorPool::GetConfigDescriptor()")));

  1422 	TInt copied = 0;

  1423 	TInt count = iDescriptors.Count();

  1424 	TUint8* buf = iEp0_TxBuf;

  1425 	for (TInt i = 1; i < count; ++i)

  1426 		{

  1427 		__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING(" > desc[%02d]: type = 0x%02x size = %d "),

  1428 										i, iDescriptors[i]->Type(), iDescriptors[i]->Size()));

  1429 		const TInt size = iDescriptors[i]->GetDescriptorData(buf, KUsbcBufSz_Ep0Tx - copied);

  1430 		if (size == 0)

  1431 			{

  1432 			// There was no buffer space to copy the descriptor -> no use to proceed

  1433 			break;

  1434 			}

  1435 		copied += size;

  1436 		if (copied >= KUsbcBufSz_Ep0Tx)

  1437 			{

  1438 			// There's no buffer space left -> we need to stop copying here

  1439 			break;

  1440 			}

  1441 		buf += size;

  1442 		}

  1443 	return copied;

  1444 	}

  1447 //

  1448 // Only used for Ep0 standard requests, so target buffer could be hard-wired.

  1449 //

  1450 TInt TUsbcDescriptorPool::GetStringDescriptor(TInt aIndex) const

  1451 	{

  1452 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("TUsbcDescriptorPool::GetStringDescriptor()")));

  1453 	// I really would have liked to display here the descriptor contents, but without trailing zero

  1454 	// we got a problem: how could we tell printf where the string ends? We would have to

  1455 	// dynamically allocate memory (since we don't know the size in advance), copy the descriptor

  1456 	// contents there, append a zero, and give this to printf. That's a bit too much effort...

  1457 	if (iStrings[aIndex])

  1458 		{

  1459 		__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("  String @ pos %d"), aIndex));

  1460 		TInt size = iStrings[aIndex]->GetDescriptorData(iEp0_TxBuf, KUsbcBufSz_Ep0Tx);

  1461 		return size;

  1462 		}

  1463 	else

  1464 		{

  1465 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no descriptor @ pos %d!"), aIndex));

  1466 		return 0;

  1467 		}

  1468 	}

  1471 TInt TUsbcDescriptorPool::GetDeviceStringDescriptorTC(DThread* aThread, TDes8& aString, TInt aIndex) const

  1472 	{

  1473 	TBuf8<KUsbDescSize_Device> dev_desc;

  1474 	iDescriptors[0]->GetDescriptorData(dev_desc);

  1475 	const TInt str_idx = dev_desc[aIndex];

  1476 	if ((str_idx > 0) && iStrings[str_idx])

  1477 		{

  1478 		__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("  String @ pos %d (device $): \"%S\""),

  1479 										str_idx, &iStrings[str_idx]->StringData()));

  1480 		return __THREADWRITE(aThread, &aString, iStrings[str_idx]->StringData());

  1481 		}

  1482 	else

  1483 		{

  1484 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: no string descriptor @ pos %d!"), str_idx));

  1485 		return KErrNotFound;

  1486 		}

  1487 	}

  1490 TInt TUsbcDescriptorPool::SetDeviceStringDescriptorTC(DThread* aThread, const TDes8& aString, TInt aIndex)

  1491 	{

  1492 	// we don't know the length of the string, so we have to allocate memory dynamically

  1493 	TUint strlen = __THREADDESLEN(aThread, &aString);

  1494 	if (strlen > KUsbStringDescStringMaxSize)

  1495 		{

  1496 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Warning: $ descriptor too long - string will be truncated")));

  1497 		strlen = KUsbStringDescStringMaxSize;

  1498 		}

  1500 	HBuf8Plat* strbuf = NULL;

  1501 	__NEWPLATBUF(strbuf, strlen);

  1502 	if (!strbuf)

  1503 		{

  1504 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: Memory allocation for dev $ desc string failed (1)")));

  1505 		return KErrNoMemory;

  1506 		}

  1508 	TInt r;

  1509 	__THREADREADPLATBUF(aThread, &aString, strbuf, r);

  1510 	if (r != KErrNone)

  1511 		{

  1512 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: Thread read error")));

  1513 		delete strbuf;

  1514 		return r;

  1515 		}

  1516 	TUsbcStringDescriptor* sd = TUsbcStringDescriptor::New(*strbuf);

  1517 	if (!sd)

  1518 		{

  1519 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: Memory allocation for dev $ desc failed (2)")));

  1520 		delete strbuf;

  1521 		return KErrNoMemory;

  1522 		}

  1523 	TBuf8<KUsbDescSize_Device> dev_desc;

  1524 	dev_desc.FillZ(dev_desc.MaxLength());

  1525 	iDescriptors[0]->GetDescriptorData(dev_desc);

  1526 	ExchangeStringDescriptor(dev_desc[aIndex], sd);

  1527 	delete strbuf;

  1528 	return r;

  1529 	}

  1532 TInt TUsbcDescriptorPool::ExchangeStringDescriptor(TInt aIndex, const TUsbcStringDescriptor* aDesc)

  1533 	{

  1534 	if (aIndex <= 0)

  1535 		{

  1536 		__KTRACE_OPT(KPANIC, Kern::Printf(__KSTRING("  Error: invalid string descriptor index: %d!"), aIndex));

  1537 		return KErrArgument;

  1538 		}

  1539 	__KTRACE_OPT(KUSB, Kern::Printf(__KSTRING("  Exchanging string descriptor @ index %d"), aIndex));

  1540 	DeleteString(aIndex);

  1541 	iStrings.Insert(aDesc, aIndex);

  1542 	return KErrNone;

  1543 	}

  1546 // -eof-

author	sl
	Tue, 10 Jun 2014 14:32:02 +0200
changeset 1	260cb5ec6c19
permissions	-rw-r--r--