kernel/eka/drivers/usbho/usbdi_utils/zerocopymetadata.inl
branchRCL_3
changeset 23 1df514389a47
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22:2f92ad2dc5db 23:1df514389a47
       
     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 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 // Description:
       
    12 //
       
    13 
       
    14 /**
       
    15  @file
       
    16  @internalComponent
       
    17 */
       
    18 
       
    19 
       
    20 template<typename XReturnType, TInt XFieldOffset>
       
    21 inline XReturnType& Field(TAddrType aBase, TInt aHeaderOffset)
       
    22 	{
       
    23 	TInt offset = aHeaderOffset + XFieldOffset;
       
    24 	return *reinterpret_cast<XReturnType*>(aBase + offset);
       
    25 	}
       
    26 
       
    27 
       
    28 //
       
    29 // UsbZeroCopyChunkHeaderBase
       
    30 //
       
    31 
       
    32 inline RUsbTransferDescriptor::TTransferType& UsbZeroCopyChunkHeaderBase::TransferType(TAddrType aBase, TInt aHeaderOffset)
       
    33 	{
       
    34 	return Field<RUsbTransferDescriptor::TTransferType, ETransferType>(aBase, aHeaderOffset);
       
    35 	}
       
    36 
       
    37 
       
    38 
       
    39 //
       
    40 // UsbZeroCopyBulkIntrChunkHeader
       
    41 //
       
    42 
       
    43 inline TInt UsbZeroCopyBulkIntrChunkHeader::HeaderSize()
       
    44 	{
       
    45 	__ASSERT_COMPILE(EHeaderSize % sizeof(TInt) == 0);
       
    46 	return EHeaderSize;
       
    47 	}
       
    48 
       
    49 
       
    50 inline TInt& UsbZeroCopyBulkIntrChunkHeader::DataOffset(TAddrType aBase, TInt aHeaderOffset)
       
    51 	{
       
    52 	return Field<TInt, EDataOffset>(aBase, aHeaderOffset);
       
    53 	}
       
    54 
       
    55 inline TInt& UsbZeroCopyBulkIntrChunkHeader::DataLength(TAddrType aBase, TInt aHeaderOffset)
       
    56 	{
       
    57 	return Field<TInt, EDataLength>(aBase, aHeaderOffset);
       
    58 	}
       
    59 
       
    60 inline TInt& UsbZeroCopyBulkIntrChunkHeader::DataMaxLength(TAddrType aBase, TInt aHeaderOffset)
       
    61 	{
       
    62 	return Field<TInt, EDataMaxLength>(aBase, aHeaderOffset);
       
    63 	}
       
    64 	
       
    65 inline RUsbTransferDescriptor::TZlpStatus& UsbZeroCopyBulkIntrChunkHeader::ZlpStatus(TAddrType aBase, TInt aHeaderOffset)
       
    66 	{
       
    67 	return Field<RUsbTransferDescriptor::TZlpStatus, EZlpStatus>(aBase, aHeaderOffset);
       
    68 	}
       
    69 
       
    70 
       
    71 
       
    72 //
       
    73 // UsbZeroCopyIsocChunkHeader
       
    74 //
       
    75 
       
    76 inline TInt UsbZeroCopyIsocChunkHeader::HeaderSize()
       
    77 	{
       
    78 	__ASSERT_COMPILE(EHeaderSize % sizeof(TInt) == 0);
       
    79 	return EHeaderSize;
       
    80 	}
       
    81 
       
    82 
       
    83 inline TInt& UsbZeroCopyIsocChunkHeader::FirstElementOffset(TAddrType aBase, TInt aHeaderOffset)
       
    84 	{
       
    85 	return Field<TInt, EFirstElementOffset>(aBase, aHeaderOffset);
       
    86 	}
       
    87 
       
    88 inline TInt& UsbZeroCopyIsocChunkHeader::MaxNumPackets(TAddrType aBase, TInt aHeaderOffset)
       
    89 	{
       
    90 	return Field<TInt, EMaxNumPackets>(aBase, aHeaderOffset);
       
    91 	}
       
    92 
       
    93 inline TInt& UsbZeroCopyIsocChunkHeader::MaxPacketSize(TAddrType aBase, TInt aHeaderOffset)
       
    94 	{
       
    95 	return Field<TInt, EMaxPacketSize>(aBase, aHeaderOffset);
       
    96 	}
       
    97 
       
    98 inline TInt& UsbZeroCopyIsocChunkHeader::LengthsOffset(TAddrType aBase, TInt aHeaderOffset)
       
    99 	{
       
   100 	return Field<TInt, ELengthsOffset>(aBase, aHeaderOffset);
       
   101 	}
       
   102 	
       
   103 inline TInt& UsbZeroCopyIsocChunkHeader::ReqLenOffset(TAddrType aBase, TInt aHeaderOffset)
       
   104 	{
       
   105 	return Field<TInt, EReqLenOffset>(aBase, aHeaderOffset);
       
   106 	}
       
   107 	
       
   108 inline TInt& UsbZeroCopyIsocChunkHeader::ResultsOffset(TAddrType aBase, TInt aHeaderOffset)
       
   109 	{
       
   110 	return Field<TInt, EResultsOffset>(aBase, aHeaderOffset);
       
   111 	}
       
   112 
       
   113 
       
   114 
       
   115 //
       
   116 // UsbZeroCopyIsocChunkHeader
       
   117 //
       
   118 
       
   119 inline TInt UsbZeroCopyIsocChunkElement::ElementSize()
       
   120 	{
       
   121 	__ASSERT_COMPILE(EElementSize % sizeof(TInt) == 0);
       
   122 	return EElementSize;
       
   123 	}
       
   124 
       
   125 
       
   126 inline TInt& UsbZeroCopyIsocChunkElement::DataOffset(TAddrType aBase, TInt aHeaderOffset)
       
   127 	{
       
   128 	return Field<TInt, EDataOffset>(aBase, aHeaderOffset);
       
   129 	}
       
   130 
       
   131 inline TInt& UsbZeroCopyIsocChunkElement::NumPackets(TAddrType aBase, TInt aHeaderOffset)
       
   132 	{
       
   133 	return Field<TInt, ENumPackets>(aBase, aHeaderOffset);
       
   134 	}
       
   135 
       
   136 inline TInt& UsbZeroCopyIsocChunkElement::NextElementOffset(TAddrType aBase, TInt aHeaderOffset)
       
   137 	{
       
   138 	return Field<TInt, ENextElementOffset>(aBase, aHeaderOffset);
       
   139 	}
       
   140 	
       
   141