|
1 // Copyright (c) 2002-2010 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 // include/drivers/dma.inl |
|
15 // DMA framework public inline functions |
|
16 // This file should not be modified when porting the DMA framework to |
|
17 // new hardware. |
|
18 // |
|
19 // WARNING: This file contains some APIs which are internal and are subject |
|
20 // to change without noticed. Such APIs should therefore not be used |
|
21 // outside the Kernel and Hardware Services package. |
|
22 // |
|
23 |
|
24 // TDmaChannel |
|
25 |
|
26 inline void TDmaChannel::Wait() |
|
27 { |
|
28 NKern::FMWait(&iLock); |
|
29 } |
|
30 |
|
31 inline void TDmaChannel::Signal() |
|
32 { |
|
33 NKern::FMSignal(&iLock); |
|
34 } |
|
35 |
|
36 inline TBool TDmaChannel::Flash() |
|
37 { |
|
38 return NKern::FMFlash(&iLock); |
|
39 } |
|
40 |
|
41 inline TBool TDmaChannel::IsOpened() const |
|
42 { |
|
43 return iController != NULL; |
|
44 } |
|
45 |
|
46 inline TBool TDmaChannel::IsQueueEmpty() const |
|
47 { |
|
48 return const_cast<TDmaChannel*>(this)->iReqQ.IsEmpty(); |
|
49 } |
|
50 |
|
51 inline TUint32 TDmaChannel::PslId() const |
|
52 { |
|
53 return iPslId; |
|
54 } |
|
55 |
|
56 inline TInt TDmaChannel::FailNext(TInt /*aFragmentCount*/) |
|
57 { |
|
58 return iController->FailNext(*this); |
|
59 } |
|
60 |
|
61 inline TInt TDmaChannel::MissNextInterrupts(TInt aInterruptCount) |
|
62 { |
|
63 return iController->MissNextInterrupts(*this, aInterruptCount); |
|
64 } |
|
65 |
|
66 /** Function allowing platform-specific layer to extend API with new |
|
67 channel-specific operations. |
|
68 @param aCmd Command identifier. Negative values are reserved for Symbian use. |
|
69 @param aArg PSL-specific |
|
70 @return KErrNotSupported if aCmd is not supported. PSL-specific value otherwise. |
|
71 */ |
|
72 |
|
73 inline TInt TDmaChannel::Extension(TInt aCmd, TAny* aArg) |
|
74 { |
|
75 return iController->Extension(*this, aCmd, aArg); |
|
76 } |
|
77 |
|
78 inline const TDmac* TDmaChannel::Controller() const |
|
79 { |
|
80 return iController; |
|
81 } |
|
82 |
|
83 inline TInt TDmaChannel::MaxTransferSize(TUint aFlags, TUint32 aPslInfo) |
|
84 { |
|
85 return iController->MaxTransferSize(*this, aFlags, aPslInfo); |
|
86 } |
|
87 |
|
88 inline TUint TDmaChannel::MemAlignMask(TUint aFlags, TUint32 aPslInfo) |
|
89 { |
|
90 return iController->MemAlignMask(*this, aFlags, aPslInfo); |
|
91 } |
|
92 |
|
93 // DDmaRequest |
|
94 |
|
95 /** Called when request is removed from request queue in channel */ |
|
96 |
|
97 inline void DDmaRequest::OnDeque() |
|
98 { |
|
99 iQueued = EFalse; |
|
100 iLastHdr->iNext = NULL; |
|
101 iChannel.DoUnlink(*iLastHdr); |
|
102 } |
|
103 |
|
104 // TDmac |
|
105 |
|
106 inline void TDmac::Wait() |
|
107 { |
|
108 NKern::FMWait(&iLock); |
|
109 } |
|
110 |
|
111 inline void TDmac::Signal() |
|
112 { |
|
113 NKern::FMSignal(&iLock); |
|
114 } |
|
115 |
|
116 inline SDmaPseudoDes& TDmac::HdrToDes(const SDmaDesHdr& aHdr) const |
|
117 { |
|
118 return static_cast<SDmaPseudoDes*>(iDesPool)[&aHdr - iHdrPool]; |
|
119 } |
|
120 |
|
121 inline TAny* TDmac::HdrToHwDes(const SDmaDesHdr& aHdr) const |
|
122 { |
|
123 return static_cast<TUint8*>(iDesPool) + iDesSize*(&aHdr - iHdrPool); |
|
124 } |
|
125 |
|
126 inline TUint32 TDmac::DesLinToPhys(TAny* aDes) const |
|
127 { |
|
128 #ifdef __WINS__ |
|
129 (void)aDes; |
|
130 return 0xDEADBEEF; |
|
131 #else |
|
132 return iHwDesChunk->iPhysAddr + ((TLinAddr)aDes - iHwDesChunk->iLinAddr); |
|
133 #endif |
|
134 } |
|
135 |
|
136 // DmaChannelMgr |
|
137 |
|
138 inline void DmaChannelMgr::Wait() |
|
139 { |
|
140 NKern::FMWait(&Lock); |
|
141 } |
|
142 |
|
143 inline void DmaChannelMgr::Signal() |
|
144 { |
|
145 NKern::FMSignal(&Lock); |
|
146 } |
|
147 |
|
148 //--- |