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1 // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.symbianfoundation.org/legal/licencesv10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // e32\include\drivers\dma.inl |
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15 // DMA framework public inline functions |
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16 // This file should not be modified when porting the DMA framework to |
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17 // new hardware. |
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18 // TDmaChannel |
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19 // |
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20 // |
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21 |
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22 inline void TDmaChannel::Wait() |
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23 { |
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24 NKern::FMWait(&iLock); |
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25 } |
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26 |
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27 inline void TDmaChannel::Signal() |
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28 { |
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29 NKern::FMSignal(&iLock); |
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30 } |
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31 |
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32 inline TBool TDmaChannel::IsOpened() const |
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33 { |
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34 return iController != NULL; |
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35 } |
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36 |
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37 inline TBool TDmaChannel::IsQueueEmpty() const |
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38 { |
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39 return const_cast<TDmaChannel*>(this)->iReqQ.IsEmpty(); |
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40 } |
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41 |
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42 inline TUint32 TDmaChannel::PslId() const |
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43 { |
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44 return iPslId; |
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45 } |
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46 |
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47 inline TInt TDmaChannel::FailNext(TInt /*aFragmentCount*/) |
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48 { |
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49 return iController->FailNext(*this); |
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50 } |
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51 |
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52 inline TInt TDmaChannel::MissNextInterrupts(TInt aInterruptCount) |
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53 { |
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54 return iController->MissNextInterrupts(*this, aInterruptCount); |
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55 } |
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56 |
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57 /** Function allowing platform-specific layer to extend API with new |
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58 channel-specific operations. |
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59 @param aCmd Command identifier. Negative values are reserved for Symbian use. |
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60 @param aArg PSL-specific |
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61 @return KErrNotSupported if aCmd is not supported. PSL-specific value otherwise. |
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62 */ |
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63 |
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64 inline TInt TDmaChannel::Extension(TInt aCmd, TAny* aArg) |
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65 { |
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66 return iController->Extension(*this, aCmd, aArg); |
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67 } |
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68 |
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69 inline const TDmac* TDmaChannel::Controller() const |
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70 { |
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71 return iController; |
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72 } |
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73 |
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74 inline TInt TDmaChannel::MaxTransferSize(TUint aFlags, TUint32 aPslInfo) |
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75 { |
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76 return iController->MaxTransferSize(*this, aFlags, aPslInfo); |
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77 } |
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78 |
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79 inline TUint TDmaChannel::MemAlignMask(TUint aFlags, TUint32 aPslInfo) |
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80 { |
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81 return iController->MemAlignMask(*this, aFlags, aPslInfo); |
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82 } |
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83 |
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84 // DDmaRequest |
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85 |
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86 /** Called when request is removed from request queue in channel */ |
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87 |
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88 inline void DDmaRequest::OnDeque() |
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89 { |
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90 iQueued = EFalse; |
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91 iLastHdr->iNext = NULL; |
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92 iChannel.DoUnlink(*iLastHdr); |
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93 } |
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94 |
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95 // TDmac |
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96 |
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97 inline void TDmac::Wait() |
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98 { |
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99 NKern::FMWait(&iLock); |
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100 } |
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101 |
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102 inline void TDmac::Signal() |
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103 { |
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104 NKern::FMSignal(&iLock); |
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105 } |
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106 |
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107 inline SDmaPseudoDes& TDmac::HdrToDes(const SDmaDesHdr& aHdr) const |
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108 { |
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109 return static_cast<SDmaPseudoDes*>(iDesPool)[&aHdr - iHdrPool]; |
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110 } |
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111 |
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112 inline TAny* TDmac::HdrToHwDes(const SDmaDesHdr& aHdr) const |
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113 { |
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114 return static_cast<TUint8*>(iDesPool) + iDesSize*(&aHdr - iHdrPool); |
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115 } |
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116 |
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117 inline TUint32 TDmac::DesLinToPhys(TAny* aDes) const |
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118 { |
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119 #ifdef __WINS__ |
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120 (void)aDes; |
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121 return 0xDEADBEEF; |
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122 #else |
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123 return iHwDesChunk->iPhysAddr + ((TLinAddr)aDes - iHwDesChunk->iLinAddr); |
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124 #endif |
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125 } |
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126 |
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127 // DmaChannelMgr |
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128 |
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129 inline void DmaChannelMgr::Wait() |
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130 { |
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131 NKern::FMWait(&Lock); |
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132 } |
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133 |
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134 inline void DmaChannelMgr::Signal() |
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135 { |
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136 NKern::FMSignal(&Lock); |
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137 } |
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138 |
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139 //--- |