1 // Copyright (c) 2007-2009 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 "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 //

    15 

    16 /** 

    17  @file

    18  @internalTechnology

    19  @released

    20 */

    21 

    22 #include <e32debug.h>

    23 #include <remconmediaerror.h>

    24 #include "avrcpipcutils.h"

    25 #include "avrcpinternalinterface.h"

    26 #include "mediabrowse.h"

    27 #include "mediainformation.h"

    28 #include "nowplaying.h"

    29 #include "playerinformation.h"

    30 

    31 /*

    32  * These methods are intended to provide structured IPC communication between

    33  * the AVRCP bearer, and the client API DLLs. They are intended to be 'simple'

    34  * classes, in which the basic operation are as follows:

    35  *

    36  *   reading: call ReadL(request) and pull information out of member variables

    37  *   writing: put information into member variables, then call WriteL(request)

    38  *

    39  * The ReadL() and WriteL() methods effectively just serialize the information

    40  * already stored in the member varables. However, they serialize in Big-Endian

    41  * format, so that after calling WriteL() and then sending the response back to

    42  * the AVRCP bearer via IPC, the bearer can just append the response straight

    43  * into an AVC frame; no bit-twiddling is necessary.

    44  *

    45  * Therefore it is important that these classes _ALWAYS_ write in Big-Endian

    46  * format, and write out responses that conform to the AVRCP specification for

    47  * PDUs listed in sections 5.1 - 5.4 of the AVRCP 1.3 specification. The ReadL()

    48  * operation is the inverse of the WriteL() operation and reads an AVRCP request

    49  * in the format listed in the AVRCP specification.

    50  *

    51  * There's also a Size() method, which will return the size of the response

    52  * before WriteL() is called. This is required particularly for responses with

    53  * text strings so that the correct-sized buffer can be allocated, as these

    54  * could be very large responses (theoretically up to 16 megabytes!) sent via

    55  * IPC (just once) and then kept and fragmented in the AVRCP bearer. The Close()

    56  * method frees up any memory allocated with these classes.

    57  */

    58 

    59 

    60 // --------------------------------------------------------------------------------

    61 // Used for constructing PDU 0x30 responses

    62 

    63 EXPORT_C void RRemConPlayerInformationGetPlayStatusResponse::ReadL(const TDesC8& aData)

    64 	{

    65 	iReadStream.Open(aData);

    66 	iTrackLength      = Read32L();

    67 	iPlayPos          = Read32L();

    68 	iStatus           = (MPlayerEventsObserver::TPlaybackStatus) Read8L();

    69 	iReadStream.Close();

    70 	}

    71 

    72 EXPORT_C void RRemConPlayerInformationGetPlayStatusResponse::WriteL(TDes8& aOutData)

    73 	{

    74 	aOutData.Zero();

    75 	iStream.Open(aOutData);

    76 	Write32L(KErrNone);   // Successful operation

    77 	Write32L(iTrackLength);

    78 	Write32L(iPlayPos);

    79 	Write8L(iStatus);

    80 	iStream.CommitL();

    81 	}

    82 

    83 // --------------------------------------------------------------------------------

    84 // Used for constructing PDU 0xff requests

    85 

    86 EXPORT_C void RRemConPlayerInformationGetPlayStatusUpdateRequest::ReadL(const TDesC8& aData)

    87 	{

    88 	iReadStream.Open(aData);

    89 	iStatus           = (MPlayerEventsObserver::TPlaybackStatus) Read8L();

    90 	iReadStream.Close();

    91 	}

    92 

    93 EXPORT_C void RRemConPlayerInformationGetPlayStatusUpdateRequest::WriteL(TDes8& aOutData)

    94 	{

    95 	aOutData.Zero();

    96 	iStream.Open(aOutData);

    97 	Write8L(iStatus);

    98 	iStream.CommitL();

    99 	}

   100 

   101 // --------------------------------------------------------------------------------

   102 // Used for constructing PDU 0xff responses

   103 

   104 EXPORT_C void RRemConPlayerInformationGetPlayStatusUpdateResponse::ReadL(const TDesC8& aData)

   105 	{

   106 	iReadStream.Open(aData);

   107 	iStatus           = (MPlayerEventsObserver::TPlaybackStatus) Read8L();

   108 	iReadStream.Close();

   109 	}

   110 

   111 EXPORT_C void RRemConPlayerInformationGetPlayStatusUpdateResponse::WriteL(TDes8& aOutData)

   112 	{

   113 	aOutData.Zero();

   114 	iStream.Open(aOutData);

   115 	Write32L(KErrNone);   // Successful operation

   116 	Write8L(iStatus);

   117 	iStream.CommitL();

   118 	}

   119 // --------------------------------------------------------------------------------

   120 // Used for constructing PDU 0x15 and PDU 0x16 responses

   121 

   122 EXPORT_C void RRemConGetPlayerApplicationTextResponse::ReadL(const TDesC8& aData)

   123 	{

   124 	iReadStream.Open(aData);

   125 	iNumberAttributes = Read8L();

   126 	for (TInt i = 0; i < iNumberAttributes; i++ )

   127 		{

   128 		RSettingWithCharset setting;

   129 		CleanupClosePushL(setting);

   130 		setting.iAttributeId = Read8L();

   131 		setting.iCharset     = Read16L();

   132 		setting.iStringLen   = Read8L();

   133 		setting.iString      = HBufC8::NewL(setting.iStringLen);

   134 		TPtr8 ptr            = setting.iString->Des();

   135 		iReadStream.ReadL(ptr);

   136 		iAttributes.AppendL(setting);

   137 		CleanupStack::Pop(&setting);

   138 		}

   139 	

   140 	}

   141 

   142 EXPORT_C void RRemConGetPlayerApplicationTextResponse::WriteL(TDes8& aOutData)

   143 	{

   144 	// The caller should have called Size() to pre-allocate enough buffer space

   145 	__ASSERT_DEBUG(aOutData.MaxLength() >= Size(), AvrcpIpcUtils::Panic(EAvrcpIpcCommandDataTooLong));

   146 	aOutData.Zero();

   147 	iStream.Open(aOutData);

   148 	Write32L(KErrNone);   // Successful operation

   149 	Write8L(iNumberAttributes);

   150 	for (TInt i = 0; i < iNumberAttributes; i++ )

   151 		{

   152 		Write8L(iAttributes[i].iAttributeId);

   153 		Write16L(iAttributes[i].iCharset);

   154 		Write8L(iAttributes[i].iStringLen);

   155 		iStream.WriteL(iAttributes[i].iString->Des());

   156 		}

   157 	iStream.CommitL();

   158 	}

   159 

   160 EXPORT_C TInt RRemConGetPlayerApplicationTextResponse::Size()

   161 	{

   162 	// Return the size that a buffer needs to be allocated to

   163 	// serialise the data encapsulated within this data structure.

   164 	

   165 	TInt size = 5; // 5 bytes: status code + number attributes

   166 	for (TInt i = 0; i < iNumberAttributes; i++)

   167 		{

   168 		size += 4;   // 4 bytes: attribute id + charset + stringlen

   169 		size += iAttributes[i].iString->Length();

   170 		}

   171 	return size;

   172 	}

   173 

   174 EXPORT_C void RRemConGetPlayerApplicationTextResponse::Close()

   175 	{

   176 	for (TInt i = 0; i < iAttributes.Count(); i++)

   177 		{

   178 		iAttributes[i].Close();

   179 		}

   180 	iAttributes.Close();

   181 	RAvrcpIPC::Close();

   182 	}

   183 

   184 // --------------------------------------------------------------------------------

   185 // Used for constructing PDU 0x10 responses

   186 

   187 EXPORT_C void RRemConGetCapabilitiesResponse::ReadL(const TDesC8& aData)

   188 	{

   189 	iReadStream.Open(aData);

   190 	iCapabilityId     = Read8L();

   191 	if (   iCapabilityId != ECapabilityIdCompanyID

   192 	    && iCapabilityId != ECapabilityIdEventsSupported)

   193 		{

   194 		iReadStream.Close();

   195 		User::Leave(KErrNotSupported);

   196 		}

   197 	

   198 	iCapabilityCount  = Read8L();

   199 	for (TInt i = 0; i < iCapabilityCount; i++ )

   200 		{

   201 		if (iCapabilityId == ECapabilityIdCompanyID)

   202 			{

   203 			iCapabilities.AppendL(Read24L());  // Read 3 bytes

   204 			}

   205 		else

   206 			{

   207 			iCapabilities.AppendL(Read8L());   // Read 1 byte

   208 			}

   209 		}

   210 	iReadStream.Close();

   211 	}

   212 

   213 EXPORT_C void RRemConGetCapabilitiesResponse::WriteL(TDes8& aOutData)

   214 	{

   215 	if (   iCapabilityId != ECapabilityIdCompanyID

   216 	    && iCapabilityId != ECapabilityIdEventsSupported)

   217 		{

   218 		User::Leave(KErrNotSupported);

   219 		}

   220 	aOutData.Zero();

   221 	iStream.Open(aOutData);

   222 	Write32L(KErrNone);   // Successful operation

   223 	Write8L(iCapabilityId);

   224 	Write8L(iCapabilityCount);

   225 	for (TInt i = 0; i < iCapabilityCount; i++ )

   226 		{

   227 		if (iCapabilityId == ECapabilityIdCompanyID)

   228 			{

   229 			Write24L(iCapabilities[i]);  // Write 3 bytes

   230 			}

   231 		else

   232 			{

   233 			Write8L(iCapabilities[i]);   // Write 1 byte

   234 			}

   235 		}

   236 	iStream.CommitL();

   237 	}

   238 

   239 // --------------------------------------------------------------------------------

   240 // Used for constructing and parsing PDU 0x13 (response) and PDU 0x14 (request)

   241 

   242 EXPORT_C void RRemConPlayerAttributeIdsAndValues::ReadL(const TDesC8& aData)

   243 	{

   244 	iReadStream.Open(aData);

   245 	iNumberAttributes = Read8L();

   246 	for (TInt i = 0; i < iNumberAttributes; i++ )

   247 		{

   248 		TInt attributeId     = Read8L();

   249 		TInt attributeValue = Read8L();

   250 		iAttributeId.AppendL(attributeId);

   251 		iAttributeValue.AppendL(attributeValue);

   252 		}

   253 	iReadStream.Close();

   254 	}

   255 

   256 EXPORT_C void RRemConPlayerAttributeIdsAndValues::WriteL(TDes8& aOutData)

   257 	{

   258 	aOutData.Zero();

   259 	iStream.Open(aOutData);

   260 	Write32L(KErrNone);   // Successful operation

   261 	Write8L(iNumberAttributes);

   262 	for (TInt i = 0; i < iNumberAttributes; i++ )

   263 		{

   264 		Write8L(iAttributeId[i]);

   265 		Write8L(iAttributeValue[i]);

   266 		}

   267 	iStream.CommitL();

   268 	}

   269 

   270 // --------------------------------------------------------------------------------

   271 // Used for constructing PDU 0x11 and PDU 0x12 responses

   272 

   273 EXPORT_C void RRemConPlayerListOfAttributes::ReadL(const TDesC8& aData)

   274 	{

   275 	iReadStream.Open(aData);

   276 	iNumberAttributes = Read8L();

   277 	for (TInt i = 0; i < iNumberAttributes; i++ )

   278 		{

   279 		TInt attribute = Read8L();

   280 		iAttributes.AppendL(attribute);

   281 		}

   282 	iReadStream.Close();

   283 	}

   284 

   285 EXPORT_C void RRemConPlayerListOfAttributes::WriteL(TDes8& aOutData)

   286 	{

   287 	aOutData.Zero();

   288 	iStream.Open(aOutData);

   289 	iAttributes.Sort();

   290 	Write32L(KErrNone);   // Successful operation

   291 	Write8L(iNumberAttributes);

   292 	for (TInt i = 0; i < iNumberAttributes; i++ )

   293 		{

   294 		Write8L(iAttributes[i]);

   295 		}

   296 	iStream.CommitL();

   297 	}

   298 

   299 // --------------------------------------------------------------------------------

   300 // Used for parsing PDU 0x20 requests

   301 

   302 EXPORT_C void RRemConGetElementAttributesRequest::ReadL(const TDesC8& aData)

   303 	{

   304 	iReadStream.Open(aData);

   305 	iElement = Read64L();

   306 	iNumberAttributes = Read8L();

   307 	

   308 	for (TInt i = 0; i < iNumberAttributes; i++ )

   309 		{

   310 		TInt attribute = Read32L();

   311 		iAttributes.AppendL(attribute);

   312 		}

   313 	iReadStream.Close();

   314 	}

   315 

   316 EXPORT_C void RRemConGetElementAttributesRequest::WriteL(TDes8& aOutData)

   317 	{

   318 	aOutData.Zero();

   319 	iStream.Open(aOutData);

   320 	iAttributes.Sort();

   321 	Write32L(KErrNone);   // Successful operation

   322 	

   323 	// 64 bits of data

   324 	Write64L(iElement);

   325 	Write8L(iNumberAttributes);

   326 

   327 	for (TInt i = 0; i < iNumberAttributes; i++ )

   328 		{

   329 		Write32L(iAttributes[i]);

   330 		}

   331 	iStream.CommitL();

   332 	}

   333 

   334 // --------------------------------------------------------------------------------

   335 // Used for PDU 0x20 responses

   336 

   337 EXPORT_C void RRemConGetElementAttributesResponse::ReadL(const TDesC8& aData)

   338 	{

   339 	iReadStream.Open(aData);

   340 	iNumberAttributes = Read8L();

   341 	

   342 	for (TInt i = 0; i < iNumberAttributes; i++ )

   343 		{

   344 		REAResponse eattr;

   345 		CleanupClosePushL(eattr);

   346 		eattr.iAttributeId = Read32L();

   347 		eattr.iCharset     = Read16L();

   348 		eattr.iStringLen   = Read16L();

   349 		eattr.iString      = HBufC8::NewL(eattr.iStringLen);

   350 		TPtr8 ptr          = eattr.iString->Des();

   351 		iReadStream.ReadL(ptr);

   352 		iAttributes.AppendL(eattr);

   353 		CleanupStack::Pop(&eattr);

   354 		}

   355 	

   356 	}

   357 

   358 EXPORT_C void RRemConGetElementAttributesResponse::WriteL(TDes8& aOutData)

   359 	{

   360 	__ASSERT_DEBUG(aOutData.MaxLength() >= Size(), AvrcpIpcUtils::Panic(EAvrcpIpcCommandDataTooLong));

   361 	aOutData.Zero();

   362 	iStream.Open(aOutData);

   363 	Write32L(KErrNone);   // Successful operation

   364 	

   365 	Write8L(iNumberAttributes);

   366 

   367 	for (TInt i = 0; i < iNumberAttributes; i++ )

   368 		{

   369 		Write32L(iAttributes[i].iAttributeId);

   370 		Write16L(iAttributes[i].iCharset);

   371 		Write16L(iAttributes[i].iStringLen);

   372 		iStream.WriteL(iAttributes[i].iString->Des());

   373 		}

   374 	iStream.CommitL();

   375 	}

   376 

   377 EXPORT_C TInt RRemConGetElementAttributesResponse::Size()

   378 	{

   379 	// Return the size that a buffer needs to be allocated to

   380 	// serialise the data encapsulated within this data structure.

   381 	

   382 	TInt size = 5; // 5 bytes: status code + number attributes

   383 	for (TInt i = 0; i < iNumberAttributes; i++)

   384 		{

   385 		size += 4+2+2; // 8 bytes: attrId (4 bytes) + charset (2 bytes) + stringlen (2 bytes)

   386 		size += iAttributes[i].iString->Length();

   387 		}

   388 	return size;

   389 	}

   390 

   391 EXPORT_C void RRemConGetElementAttributesResponse::Close()

   392 	{

   393 	for (TInt i = 0; i < iAttributes.Count(); i++)

   394 		{

   395 		iAttributes[i].Close();

   396 		}

   397 	iAttributes.Close();

   398 	RAvrcpIPC::Close();

   399 	}

   400 

   401 // --------------------------------------------------------------------------------

   402 

   403 EXPORT_C void RRemConPlayerInformation8BitResponse::ReadL(const TDesC8& aData)

   404 	{

   405 	iReadStream.Open(aData);

   406 	iValue = Read8L();

   407 	iReadStream.Close();

   408 	}

   409 

   410 EXPORT_C void RRemConPlayerInformation8BitResponse::WriteL(TDes8& aOutData)

   411 	{

   412 	aOutData.Zero();

   413 	iStream.Open(aOutData);

   414 	Write32L(KErrNone);   // Successful operation

   415 	

   416 	Write8L(iValue);

   417 	iStream.CommitL();

   418 	}

   419 

   420 // --------------------------------------------------------------------------------

   421 

   422 EXPORT_C void RRemConPlayerInformation32BitResponse::ReadL(const TDesC8& aData)

   423 	{

   424 	iReadStream.Open(aData);

   425 	iValue = Read32L();

   426 	iReadStream.Close();

   427 	}

   428 

   429 EXPORT_C void RRemConPlayerInformation32BitResponse::WriteL(TDes8& aOutData)

   430 	{

   431 	aOutData.Zero();

   432 	iStream.Open(aOutData);

   433 	Write32L(KErrNone);   // Successful operation

   434 	

   435 	Write32L(iValue);

   436 	iStream.CommitL();

   437 	}

   438 

   439 // --------------------------------------------------------------------------------

   440 

   441 EXPORT_C void RRemConPlayerInformation64BitResponse::ReadL(const TDesC8& aData)

   442 	{

   443 	iReadStream.Open(aData);

   444 	iValue = Read64L();

   445 	iReadStream.Close();

   446 	}

   447 

   448 EXPORT_C void RRemConPlayerInformation64BitResponse::WriteL(TDes8& aOutData)

   449 	{

   450 	aOutData.Zero();

   451 	iStream.Open(aOutData);

   452 	Write32L(KErrNone);   // Successful operation

   453 	

   454 	Write64L(iValue);

   455 	iStream.CommitL();

   456 	}

   457 

   458 // --------------------------------------------------------------------------------

   459 

   460 EXPORT_C void RSettingWithCharset::Close()

   461 	{

   462 	delete iString;

   463 	iString = NULL;

   464 	}

   465 

   466 EXPORT_C void REAResponse::Close()

   467 	{

   468 	delete iString;

   469 	iString = NULL;

   470 	}

   471 

   472 EXPORT_C void RRemConGetCapabilitiesResponse::Close()

   473 	{

   474 	iCapabilities.Close();

   475 	}

   476 

   477 EXPORT_C void RRemConPlayerListOfAttributes::Close()

   478 	{

   479 	iAttributes.Close();

   480 	}

   481 

   482 EXPORT_C void RRemConGetElementAttributesRequest::Close()

   483 	{

   484 	iAttributes.Close();

   485 	}

   486 

   487 EXPORT_C void RRemConPlayerAttributeIdsAndValues::Close()

   488 	{

   489 	iAttributeId.Close();

   490 	iAttributeValue.Close();

   491 	}

   492 

   493 EXPORT_C void RItem::Close()

   494 	{

   495 	delete iName;

   496 	for(TInt i = 0; i<iAttributes.Count(); i++)

   497 		{

   498 		iAttributes[i].Close();

   499 		}

   500 	}

   501 

   502 EXPORT_C TInt RItem::Size()

   503 	{

   504 	// Base size:

   505 	// type + length field + length

   506 	return 3 + iLength;

   507 	}

   508 

   509 EXPORT_C void RMediaPlayerItem::Close()

   510 	{

   511 	iName.Close();

   512 	}

   513 

   514 EXPORT_C TInt RMediaPlayerItem::Size()

   515 	{

   516 	// Base size:

   517 	// type + length field + length

   518 	return 3 + iLength;

   519 	}

   520 

   521 /**

   522 Parses PDU 0x74 and 0x90 requests.

   523 */

   524 EXPORT_C void RRemConNowPlayingRequest::ReadL(const TDesC8& aData)

   525 	{

   526 	iReadStream.Open(aData);

   527 	iScope = static_cast<TRemConFolderScope>(Read8L());

   528 	iElement = Read64L();

   529 	iUidCounter = Read16L();

   530 	}

   531 

   532 /**

   533 Constructs PDU 0x74 and 0x90 requests.

   534 */

   535 EXPORT_C void RRemConNowPlayingRequest::WriteL(TDes8& aOutData)

   536 	{

   537 	aOutData.Zero();

   538 	iStream.Open(aOutData);

   539 	Write32L(KErrNone);   // Successful operation

   540 	Write8L(iScope);

   541 	Write64L(iElement);

   542 	Write16L(iUidCounter);

   543 	iStream.CommitL();

   544 	}

   545 

   546 /**

   547 Parses PDU 0x74 and 0x90 responses

   548 */

   549 EXPORT_C void RRemConNowPlayingResponse::ReadL(const TDesC8& aData)

   550 	{

   551 	iReadStream.Open(aData);

   552 	iStatus = Read8L();

   553 	}

   554 

   555 /**

   556 Constructs PDU 0x74 and 0x90 responses.

   557 */

   558 EXPORT_C void RRemConNowPlayingResponse::WriteL(TDes8& aOutData)

   559 	{

   560 	aOutData.Zero();

   561 	iStream.Open(aOutData);

   562 	if ((KErrAvrcpAirBase - KErrAvrcpAirSuccess) == iStatus)

   563 	    {

   564 	    Write32L(KErrNone);   // Successful operation

   565 	    Write8L(iStatus);

   566 	    }

   567 	else

   568 		{

   569 		Write32L(KErrAvrcpAirBase - iStatus);

   570 		}

   571 	iStream.CommitL();

   572 	}

   573 

   574 // --------------------------------------------------------------------------------

   575 // Used for parsing PDU 0x71 requests

   576 EXPORT_C void RRemConGetFolderItemsRequest::ReadL(const TDesC8& aData)

   577 	{

   578 	iReadStream.Open(aData);

   579 	

   580 	iScope = Read8L();

   581 	iStartItem = Read32L();

   582 	iEndItem = Read32L();

   583 	iNumberAttributes = Read8L();

   584 	

   585 	if (iNumberAttributes == 0)

   586 		{

   587 		// spec says this is a request for all attribs

   588 		// current spec has 7 specified (0x01 to 0x07)

   589 		for (TInt i = 1; i <= KMaxMediaAttributeValue; i++)

   590 			{

   591 			iAttributes.AppendL(i);

   592 			}

   593 		}

   594 	else if (iNumberAttributes == 0xff)

   595 		{

   596 		// No attributes requested

   597 		}

   598 	else

   599 		{

   600 		for (TInt i = 0; i < iNumberAttributes; i++ )

   601 			{

   602 			TInt attribute = Read32L();

   603 			if (attribute > 0 && attribute <= KMaxMediaAttributeValue )

   604 				{

   605 				iAttributes.AppendL(attribute);

   606 				}

   607 			}

   608 		}

   609 

   610 	iReadStream.Close();

   611 	}

   612 

   613 EXPORT_C void RRemConGetFolderItemsRequest::WriteL(TDes8& aOutData)

   614 	{

   615 	aOutData.Zero();

   616 	iStream.Open(aOutData);

   617 	iAttributes.Sort();

   618 	Write32L(KErrNone);   // Successful operation

   619 	

   620 	Write8L(iScope);

   621 	Write32L(iStartItem);

   622 	Write32L(iEndItem);

   623 	Write8L(iNumberAttributes);

   624 

   625 	for (TInt i = 0; i < iNumberAttributes; i++ )

   626 		{

   627 		Write32L(iAttributes[i]);

   628 		}

   629 

   630 	iStream.CommitL();

   631 	}

   632 

   633 EXPORT_C void RRemConGetFolderItemsRequest::Close()

   634 	{

   635 	iAttributes.Close();

   636 	}

   637 

   638 EXPORT_C TInt RRemConGetFolderItemsRequest::CopyAttributes(RArray<TMediaAttributeId>& aOutAttributes)

   639 	{

   640 	TInt result = KErrNone;

   641 	TMediaAttributeId attributeId;

   642 	TInt attributeCount = iAttributes.Count();

   643 	for (TInt i = 0; i < attributeCount; i++)

   644 		{

   645 		attributeId = static_cast<TMediaAttributeId>(iAttributes[i]);

   646 		result = aOutAttributes.Append(attributeId);

   647 		if (result != KErrNone)

   648 			{

   649 			break;

   650 			}

   651 		}

   652 	return result;

   653 	}

   654 // --------------------------------------------------------------------------------

   655 // Used for PDU 0x71 responses

   656 

   657 EXPORT_C void RRemConGetFolderItemsResponse::ReadL(const TDesC8& aData)

   658 	{

   659 	iReadStream.Open(aData);

   660 	

   661 	iPduId = Read8L();

   662 	iParamLength = Read16L();

   663 	iStatus = Read8L();

   664 	iUidCounter = Read16L();

   665 	iNumberItems = Read16L();

   666 	

   667 	for(TInt i = 0; i < iNumberItems; i++)

   668 		{

   669 		ReadItemL();

   670 		}

   671 	

   672 	iReadStream.Close();

   673 	}

   674 

   675 void RRemConGetFolderItemsResponse::ReadItemL()

   676 	{

   677 	RItem item;

   678 	CleanupClosePushL(item);

   679 	

   680 	item.iType = static_cast<AvrcpBrowsing::TItemType>(Read8L());

   681 	item.iLength = Read16L();

   682 	item.iUid = Read64L();

   683 	

   684 	if(item.iType == AvrcpBrowsing::EFolderItem)

   685 		{

   686 		item.iFolderType = static_cast<AvrcpBrowsing::TFolderType>(Read8L());

   687 		item.iPlayable = Read8L();

   688 		}

   689 	else 

   690 		{

   691 		item.iMediaType = Read8L();

   692 		}

   693 	

   694 	item.iCharset = Read16L();

   695 	item.iNameLength = Read16L();

   696 	item.iName = HBufC8::NewL(item.iNameLength);

   697 	TPtr8 ptr = item.iName->Des();

   698 	iReadStream.ReadL(ptr);

   699 	

   700 	if(item.iType == AvrcpBrowsing::EMediaElement)

   701 		{

   702 		item.iNumberAttributes = Read32L();

   703 		

   704 		for (TInt i = 0; i < item.iNumberAttributes; i++ )

   705 			{

   706 			REAResponse eattr;

   707 			CleanupClosePushL(eattr);

   708 			

   709 			eattr.iAttributeId = Read32L();

   710 			eattr.iCharset     = Read16L();

   711 			eattr.iStringLen   = Read16L();

   712 			eattr.iString      = HBufC8::NewL(eattr.iStringLen);

   713 			TPtr8 ptr          = eattr.iString->Des();

   714 			iReadStream.ReadL(ptr);

   715 			

   716 			item.iAttributes.AppendL(eattr);

   717 			CleanupStack::Pop(&eattr);

   718 			}

   719 		}

   720 	

   721 	iItems.AppendL(item);

   722 	CleanupStack::Pop(&item);

   723 	}

   724 

   725 EXPORT_C void RRemConGetFolderItemsResponse::WriteL(TDes8& aOutData)

   726 	{

   727 	__ASSERT_DEBUG(aOutData.MaxLength() >= Size(), AvrcpIpcUtils::Panic(EAvrcpIpcCommandDataTooLong));

   728 	aOutData.Zero();

   729 	iStream.Open(aOutData);

   730 	

   731 	Write8L(iPduId);

   732 	Write16L(iParamLength);

   733 	Write8L(iStatus);

   734 	

   735 	if(iStatus == 0x4)

   736 		{

   737 		Write16L(iUidCounter);

   738 		Write16L(iNumberItems);

   739 	

   740 		for (TInt i = 0; i < iNumberItems; i++ )

   741 			{

   742 			WriteItemL(i);

   743 			}

   744 		}

   745 	

   746 	iStream.CommitL();

   747 	}

   748 

   749 void RRemConGetFolderItemsResponse::WriteItemL(TInt aIndex)

   750 	{

   751 	RItem& item = iItems[aIndex];

   752 	

   753 	Write8L(item.iType);

   754 	Write16L(item.iLength);

   755 	Write64L(item.iUid);

   756 	

   757 	if(item.iType == AvrcpBrowsing::EFolderItem)

   758 		{

   759 		Write8L(item.iFolderType);

   760 		Write8L(item.iPlayable);

   761 		}

   762 	else

   763 		{

   764 		Write8L(item.iMediaType);

   765 		}

   766 	

   767 	Write16L(item.iCharset);

   768 	Write16L(item.iNameLength);

   769 	iStream.WriteL(item.iName->Des());

   770 	

   771 	if(item.iType == AvrcpBrowsing::EMediaElement)

   772 		{

   773 		Write8L(item.iNumberAttributes);

   774 		

   775 		for(TInt i = 0; i < item.iNumberAttributes; i++)

   776 			{

   777 			Write32L(item.iAttributes[i].iAttributeId);

   778 			Write16L(item.iAttributes[i].iCharset);

   779 			Write16L(item.iAttributes[i].iStringLen);

   780 			iStream.WriteL(item.iAttributes[i].iString->Des());

   781 			}

   782 		}

   783 	}

   784 

   785 EXPORT_C TInt RRemConGetFolderItemsResponse::Size()

   786 	{

   787 	// Return the size that a buffer needs to be allocated to

   788 	// serialise the data encapsulated within this data structure.

   789 	

   790 	// base size 

   791 	// pduid + paramlength + status + uidcount + number items

   792 	TInt size = KGetFolderItemsResponseBaseSize;

   793 	

   794 	for (TInt i = 0; i < iNumberItems; i++)

   795 		{

   796 		size += iItems[i].Size();

   797 		}

   798 	return size;

   799 	}

   800 

   801 EXPORT_C void RRemConGetFolderItemsResponse::Close()

   802 	{

   803 	for (TInt i = 0; i < iItems.Count(); i++)

   804 		{

   805 		iItems[i].Close();

   806 		}

   807 	iItems.Reset();

   808 	}

   809 

   810 EXPORT_C TInt RRemConGetFolderItemsResponse::CopyItems(

   811 		const TArray<TRemConItem>& aItems)

   812 	{

   813 	TInt err = KErrNone;

   814 	for(TInt i = 0; i < aItems.Count(); i++)

   815 		{

   816 		RItem item;

   817 		item.iName = NULL;

   818 		item.iUid = aItems[i].iUid;

   819 		item.iType = static_cast<AvrcpBrowsing::TItemType>(aItems[i].iType);

   820 		

   821 		err = iItems.Append(item);

   822 		if(err)

   823 			{

   824 			break;

   825 			}

   826 		}

   827 	return err;

   828 	}

   829 

   830 EXPORT_C TBool RRemConGetFolderItemsResponse::RequestNextItem(TInt& aError, 

   831 		RBuf8& aOutBuf, TUint16 aCookie)

   832 	{

   833 	aError = KErrNone;

   834 	// Work out if we have as many items as fit

   835 	TBool getMoreItems = ETrue;

   836 	iCurrentListingSize += (iCurrentItem + 1) ? iItems[iCurrentItem].Size() : 0;

   837 	if(iCurrentListingSize > iMaxResponse)

   838 		{

   839 		// We can't fit this item in the listing

   840 		iItems[iCurrentItem].Close();

   841 		getMoreItems = EFalse;

   842 		iItems.Remove(iCurrentItem);

   843 		}

   844 	

   845 	if(getMoreItems && ++iCurrentItem < iItems.Count())

   846 		{

   847 		return ETrue;

   848 		}

   849 	else

   850 		{

   851 		// We have all items, send the response

   852 		iNumberItems = iCurrentItem;

   853 		if(aOutBuf.Create(Size()) != KErrNone)

   854 			{

   855 			aError = KErrGeneral;

   856 			return EFalse;

   857 			}

   858 		

   859 		iPduId = AvrcpBrowsing::EGetFolderItems;

   860 		iStatus = KErrAvrcpAirBase - KErrAvrcpAirSuccess;//0x4

   861 		iUidCounter = aCookie;

   862 		TRAP(aError, WriteL(aOutBuf));

   863 		}

   864 	return EFalse;

   865 	}

   866 // --------------------------------------------------------------------------------

   867 // Used for parsing PDU 0x72 requests

   868 

   869 EXPORT_C void RRemConChangePathRequest::ReadL(const TDesC8& aData)

   870 	{

   871 	iReadStream.Open(aData);

   872 	

   873 	iUidCounter = Read16L();

   874 	iDirection = Read8L();

   875 	

   876 	if(iDirection == AvrcpBrowsing::KDown)

   877 		{

   878 		iElement = Read64L();

   879 		}

   880 

   881 	iReadStream.Close();

   882 	}

   883 

   884 EXPORT_C void RRemConChangePathRequest::WriteL(TDes8& aOutData)

   885 	{

   886 	aOutData.Zero();

   887 	iStream.Open(aOutData);

   888 	

   889 	Write16L(iUidCounter);

   890 	Write8L(iDirection);

   891 	Write64L(iElement);

   892 

   893 	iStream.CommitL();

   894 	}

   895 

   896 // --------------------------------------------------------------------------------

   897 // Used for PDU 0x72 responses

   898 

   899 EXPORT_C void RRemConChangePathResponse::ReadL(const TDesC8& aData)

   900 	{

   901 	iReadStream.Open(aData);

   902 	

   903 	iStatus = Read8L();

   904 	iNumberItems = Read32L();

   905 	

   906 	iReadStream.Close();

   907 	}

   908 

   909 EXPORT_C void RRemConChangePathResponse::WriteL(TDes8& aOutData)

   910 	{

   911 	aOutData.Zero();

   912 	iStream.Open(aOutData);

   913 	

   914 	Write8L(iPduId);

   915 	Write16L(iParamLength);

   916 	Write8L(iStatus);

   917 	

   918 	if(iStatus == 0x4)

   919 		{

   920 		Write32L(iNumberItems);

   921 		}

   922 		

   923 	iStream.CommitL();

   924 	}

   925 

   926 // --------------------------------------------------------------------------------

   927 // Used for parsing PDU 0x73 requests

   928 

   929 EXPORT_C void RRemConGetItemAttributesRequest::ReadL(const TDesC8& aData)

   930 	{

   931 	iReadStream.Open(aData);

   932 	

   933 	iScope = Read8L();

   934 	iElement = Read64L();

   935 	iUidCounter = Read16L();

   936 	iNumberAttributes = Read8L();

   937 	

   938 	for (TInt i = 0; i < iNumberAttributes; i++ )

   939 		{

   940 		TInt attribute = Read32L();

   941 		iAttributes.AppendL(attribute);

   942 		}

   943 	

   944 	iReadStream.Close();

   945 	}

   946 

   947 EXPORT_C void RRemConGetItemAttributesRequest::WriteL(TDes8& aOutData)

   948 	{

   949 	aOutData.Zero();

   950 	iStream.Open(aOutData);

   951 	iAttributes.Sort();

   952 	Write32L(KErrNone);   // Successful operation

   953 	

   954 	Write8L(iScope);

   955 	// 64 bits of data

   956 	Write64L(iElement);

   957 	Write16L(iUidCounter);

   958 	Write8L(iNumberAttributes);

   959 

   960 	for (TInt i = 0; i < iNumberAttributes; i++ )

   961 		{

   962 		Write32L(iAttributes[i]);

   963 		}

   964 	iStream.CommitL();

   965 	}

   966 

   967 EXPORT_C void RRemConGetItemAttributesRequest::Close()

   968 	{

   969 	iAttributes.Close();

   970 	}

   971 

   972 // --------------------------------------------------------------------------------

   973 // Used for PDU 0x73 responses

   974 

   975 EXPORT_C void RRemConGetItemAttributesResponse::ReadL(const TDesC8& aData)

   976 	{

   977 	iReadStream.Open(aData);

   978 	

   979 	iStatus = Read8L();

   980 	iNumberAttributes = Read8L();

   981 	

   982 	for (TInt i = 0; i < iNumberAttributes; i++ )

   983 		{

   984 		REAResponse eattr;

   985 		eattr.iAttributeId = Read32L();

   986 		eattr.iCharset     = Read16L();

   987 		eattr.iStringLen   = Read16L();

   988 		eattr.iString      = HBufC8::NewL(eattr.iStringLen);

   989 		TPtr8 ptr          = eattr.iString->Des();

   990 		iReadStream.ReadL(ptr);

   991 		iAttributes.AppendL(eattr);

   992 		}

   993 	iReadStream.Close();

   994 	}

   995 

   996 EXPORT_C void RRemConGetItemAttributesResponse::WriteL(TDes8& aOutData)

   997 	{

   998 	aOutData.Zero();

   999 	iStream.Open(aOutData);

  1000 	

  1001 	Write8L(iPduId);

  1002 	Write16L(iParamLength);

  1003 	Write8L(iStatus);

  1004 	

  1005 	if(iStatus == 0x4)

  1006 		{

  1007 		Write8L(iNumberAttributes);

  1008 	

  1009 		for (TInt i = 0; i < iNumberAttributes; i++ )

  1010 			{

  1011 			Write32L(iAttributes[i].iAttributeId);

  1012 			Write16L(iAttributes[i].iCharset);

  1013 			Write16L(iAttributes[i].iStringLen);

  1014 			iStream.WriteL(iAttributes[i].iString->Des());

  1015 			}

  1016 		}

  1017 	iStream.CommitL();

  1018 	}

  1019 

  1020 EXPORT_C TInt RRemConGetItemAttributesResponse::Size()

  1021 	{

  1022 	// Return the size that a buffer needs to be allocated to

  1023 	// serialise the data encapsulated within this data structure.

  1024 	

  1025 	TInt size = 9; // 6 bytes: error + pduid + paramlength + status code + number attributes

  1026 	for (TInt i = 0; i < iAttributes.Count(); i++)

  1027 		{

  1028 		size += 4+2+2; // 8 bytes: attrId (4 bytes) + charset (2 bytes) + stringlen (2 bytes)

  1029 		size += iAttributes[i].iString->Length();

  1030 		}

  1031 	return size;

  1032 	}

  1033 

  1034 EXPORT_C void RRemConGetItemAttributesResponse::Close()

  1035 	{

  1036 	for (TInt i = 0; i < iAttributes.Count(); i++)

  1037 		{

  1038 		iAttributes[i].Close();

  1039 		}

  1040 	iAttributes.Close();

  1041 	}

  1042 

  1043 // --------------------------------------------------------------------------------

  1044 // Used for parsing PDU 0x80 requests

  1045 

  1046 EXPORT_C void RRemConSearchRequest::ReadL(const TDesC8& aData)

  1047 	{

  1048 	iReadStream.Open(aData);

  1049 	

  1050 	iCharset = Read16L();

  1051 	iStringLen = Read16L();

  1052 	

  1053 	TInt dataLength = aData.Length();

  1054 	TPtrC8 pString = aData.Right(dataLength - 2*sizeof(TUint16));

  1055 	if (pString.Length() != iStringLen)

  1056 		{

  1057 		User::Leave(KErrArgument);

  1058 		}

  1059 	

  1060 	RBuf8 searchBuf;

  1061 	searchBuf.CreateL(iStringLen);

  1062 	CleanupClosePushL(searchBuf);

  1063 	

  1064 	iReadStream.ReadL(searchBuf);

  1065 	

  1066 	CleanupStack::Pop(&searchBuf);

  1067 	iSearchString.Assign(searchBuf);

  1068 

  1069 	iReadStream.Close();

  1070 	}

  1071 

  1072 EXPORT_C void RRemConSearchRequest::WriteL(TDes8& aOutData)

  1073 	{

  1074 	aOutData.Zero();

  1075 	iStream.Open(aOutData);

  1076 	

  1077 	Write16L(iCharset);

  1078 	Write16L(iStringLen);

  1079 	WriteL(iSearchString);

  1080 	

  1081 	iStream.CommitL();

  1082 	}

  1083 

  1084 EXPORT_C TInt RRemConSearchRequest::Size()

  1085 	{

  1086 	// Return the size that a buffer needs to be allocated to

  1087 	// serialise the data encapsulated within this data structure.

  1088 	TInt size = sizeof(iCharset) + sizeof(iStringLen) + iSearchString.Length(); 

  1089 	

  1090 	return size;

  1091 	}

  1092 

  1093 EXPORT_C void RRemConSearchRequest::Close()

  1094 	{

  1095 	iSearchString.Close();

  1096 	}

  1097 

  1098 // --------------------------------------------------------------------------------

  1099 // Used for PDU 0x80 responses

  1100 

  1101 EXPORT_C void RRemConSearchResponse::ReadL(const TDesC8& aData)

  1102 	{

  1103 	iReadStream.Open(aData);

  1104 	

  1105 	iStatus = Read8L();

  1106 	iUidCounter = Read16L();

  1107 	iNumberItems = Read32L();

  1108 	

  1109 	iReadStream.Close();

  1110 	}

  1111 

  1112 EXPORT_C void RRemConSearchResponse::WriteL(TDes8& aOutData)

  1113 	{

  1114 	aOutData.Zero();

  1115 	iStream.Open(aOutData);

  1116 	

  1117 	Write8L(iPduId);

  1118 	Write16L(iParamLength);

  1119 	Write8L(iStatus);

  1120 	

  1121 	if(iStatus == 0x4)

  1122 		{

  1123 		Write16L(iUidCounter);

  1124 		Write32L(iNumberItems);

  1125 		}

  1126 

  1127 	iStream.CommitL();

  1128 	}

  1129 

  1130 // --------------------------------------------------------------------------------

  1131 // Used for parsing SetBrowsedPlayer requests

  1132 

  1133 EXPORT_C void RRemConSetBrowsedPlayerRequest::ReadL(const TDesC8& aData)

  1134 	{