1 /* |
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2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include "cmmfdevsoundcibitrateimplementationuid.hrh" |
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20 |
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21 #include <ecom/implementationproxy.h> |
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22 #include <ecom/ecom.h> |
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23 #include <s32mem.h> |
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24 |
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25 #include "cmmfdevsoundcibitrate.h" |
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26 |
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27 // __________________________________________________________________________ |
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28 // Implementation |
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29 |
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30 ////////////////////////////////////////// MUX ///////////////////// |
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31 |
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32 TInt CMMFDevSoundCIBitRateMux::OpenInterface(TUid /*aInterfaceId*/) |
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33 { |
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34 // attempt to open the interface link with the |
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35 // remote slave device |
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36 iRemoteHandle = -1; |
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37 TUid slaveId = {KMmfUidCustomInterfaceBitRateDeMux}; |
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38 |
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39 TInt handle = iUtility->OpenSlave(slaveId, KNullDesC8); |
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40 if (handle >= 0) |
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41 { |
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42 iRemoteHandle = handle; |
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43 } |
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44 |
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45 return iRemoteHandle; |
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46 } |
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47 |
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48 void CMMFDevSoundCIBitRateMux::Release() |
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49 { |
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50 // close the slave device if it exists |
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51 if (iRemoteHandle != -1) |
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52 { |
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53 // we assume the slave is closed correctly |
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54 iUtility->CloseSlave(iRemoteHandle); |
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55 } |
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56 |
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57 TUid key = iKey; |
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58 delete this; |
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59 |
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60 // tell ECom to destroy us |
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61 REComSession::DestroyedImplementation(key); |
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62 } |
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63 |
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64 void CMMFDevSoundCIBitRateMux::PassDestructorKey(TUid aDestructorKey) |
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65 { |
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66 // store the destructor key |
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67 iKey = aDestructorKey; |
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68 } |
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69 |
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70 void CMMFDevSoundCIBitRateMux::CompleteConstructL(MMMFDevSoundCustomInterfaceMuxUtility* aCustomUtility) |
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71 { |
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72 // store a pointer to the utility |
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73 iUtility = aCustomUtility; |
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74 } |
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75 |
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76 MMMFDevSoundCustomInterfaceMuxPlugin* CMMFDevSoundCIBitRateMux::NewL() |
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77 { |
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78 CMMFDevSoundCIBitRateMux* self = new (ELeave) CMMFDevSoundCIBitRateMux; |
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79 return self; |
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80 } |
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81 |
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82 TAny* CMMFDevSoundCIBitRateMux::CustomInterface(TUid /*aInterfaceId*/) |
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83 { |
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84 MMMFDevSoundCustomInterfaceBitRate* interface = this; |
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85 return interface; |
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86 } |
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87 |
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88 CMMFDevSoundCIBitRateMux::CMMFDevSoundCIBitRateMux() : |
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89 iRemoteHandle(-1) |
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90 { |
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91 } |
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92 |
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93 CMMFDevSoundCIBitRateMux::~CMMFDevSoundCIBitRateMux() |
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94 { |
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95 } |
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96 |
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97 // from MMMFDevSoundCustomInterfaceBitRate |
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98 void CMMFDevSoundCIBitRateMux::GetSupportedBitRatesL(RArray<TInt>& aSupportedBitRates) |
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99 { |
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100 if (iRemoteHandle == -1) |
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101 { |
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102 User::Leave(KErrNotReady); |
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103 } |
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104 |
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105 // first clear out the array |
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106 aSupportedBitRates.Reset(); |
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107 |
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108 // now fetch the count from the server |
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109 TInt count = -1; |
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110 count = iUtility->SendSlaveSyncCommand(iRemoteHandle, EMMFDevSoundCIBitRateGetSupportedBitRates, KNullDesC8); |
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111 |
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112 // if count is negative then the server side left with an error |
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113 if (count < 0) |
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114 { |
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115 User::Leave(count); |
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116 } |
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117 |
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118 // no point getting the data if the count is zero |
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119 if (count != 0) |
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120 { |
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121 // allocate a temporary buffer to hold the bitrates |
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122 HBufC8* buf = HBufC8::NewLC(count * sizeof(TInt32)); |
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123 TPtr8 ptr = buf->Des(); |
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124 |
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125 // fetch the bitrates - but send over the received count to be sure |
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126 TPckgBuf<TInt> countBuf(count); |
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127 User::LeaveIfError(iUtility->SendSlaveSyncCommandResult( |
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128 iRemoteHandle, |
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129 EMMFDevSoundCIBitRateGetSupportedBitRatesArray, |
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130 countBuf, ptr)); |
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131 |
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132 // stream data into the pointer |
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133 RDesReadStream stream(ptr); |
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134 CleanupClosePushL(stream); |
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135 |
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136 TInt err = KErrNone; |
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137 for (TInt i = 0; i < count; i++) |
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138 { |
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139 // note we don't destroy array because we don't own it |
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140 // but we do reset it as it is incomplete |
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141 err = aSupportedBitRates.Append(stream.ReadInt32L()); |
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142 if (err != KErrNone) |
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143 { |
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144 aSupportedBitRates.Reset(); |
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145 User::Leave(KErrCorrupt); |
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146 } |
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147 } |
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148 |
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149 CleanupStack::PopAndDestroy(2, buf);// stream, buf |
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150 } |
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151 } |
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152 |
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153 TInt CMMFDevSoundCIBitRateMux::BitRateL() |
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154 { |
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155 if (iRemoteHandle == -1) |
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156 { |
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157 User::Leave(KErrNotReady); |
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158 } |
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159 |
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160 // send EMMFDevSoundCIBitRateBitRate command to slave |
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161 TInt bitrate = 0; |
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162 bitrate = iUtility->SendSlaveSyncCommand(iRemoteHandle, EMMFDevSoundCIBitRateBitRate, KNullDesC8); |
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163 |
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164 // if bitrate is negative then remote side left with an error |
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165 if (bitrate < 0) |
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166 { |
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167 User::Leave(bitrate); |
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168 } |
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169 |
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170 return bitrate; |
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171 } |
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172 |
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173 void CMMFDevSoundCIBitRateMux::SetBitRateL(TInt aBitRate) |
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174 { |
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175 if (iRemoteHandle == -1) |
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176 { |
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177 User::Leave(KErrNotReady); |
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178 } |
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179 |
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180 // send the bitrate in the sync command |
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181 TPckgBuf<TInt> bitBuffer(aBitRate); |
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182 |
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183 // any return code other than zero is an error |
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184 User::LeaveIfError(iUtility->SendSlaveSyncCommand(iRemoteHandle, EMMFDevSoundCIBitRateSetBitRate, bitBuffer)); |
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185 } |
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186 |
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187 /////////////////////////////////////// DEMUX ////////////////////// |
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188 |
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189 |
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190 TInt CMMFDevSoundCIBitRateDeMux::OpenInterface(TUid /*aInterfaceId*/) |
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191 { |
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192 return KErrNone; |
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193 } |
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194 |
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195 void CMMFDevSoundCIBitRateDeMux::Release() |
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196 { |
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197 TUid key = iKey; |
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198 |
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199 delete this; |
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200 |
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201 // tell ECom to destroy us |
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202 REComSession::DestroyedImplementation(key); |
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203 } |
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204 |
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205 void CMMFDevSoundCIBitRateDeMux::PassDestructorKey(TUid aDestructorKey) |
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206 { |
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207 // store the destructor key |
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208 iKey = aDestructorKey; |
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209 } |
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210 |
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211 void CMMFDevSoundCIBitRateDeMux::SetInterfaceTarget(MMMFDevSoundCustomInterfaceTarget* aTarget) |
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212 { |
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213 iTarget = aTarget; |
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214 } |
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215 |
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216 void CMMFDevSoundCIBitRateDeMux::CompleteConstructL(MMMFDevSoundCustomInterfaceDeMuxUtility* aCustomUtility) |
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217 { |
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218 // store a pointer to the utility |
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219 iUtility = aCustomUtility; |
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220 } |
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221 |
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222 void CMMFDevSoundCIBitRateDeMux::RefreshL() |
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223 { |
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224 // refetch the bitrate custom interface if we already have a target |
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225 if (iTarget) |
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226 { |
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227 MMMFDevSoundCustomInterfaceBitRate* ptr = NULL; |
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228 ptr = static_cast <MMMFDevSoundCustomInterfaceBitRate*> (iTarget->CustomInterface(KUidCustomInterfaceDevSoundBitRate)); |
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229 |
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230 if (!ptr) |
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231 { |
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232 iBitRateInterface = NULL; |
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233 User::Leave(KErrNotSupported); |
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234 } |
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235 else |
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236 { |
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237 iBitRateInterface = ptr; |
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238 } |
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239 } |
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240 } |
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241 |
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242 |
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243 MMMFDevSoundCustomInterfaceDeMuxPlugin* CMMFDevSoundCIBitRateDeMux::NewL() |
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244 { |
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245 CMMFDevSoundCIBitRateDeMux* self = new (ELeave) CMMFDevSoundCIBitRateDeMux; |
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246 return self; |
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247 } |
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248 |
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249 CMMFDevSoundCIBitRateDeMux::CMMFDevSoundCIBitRateDeMux() |
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250 { |
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251 |
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252 } |
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253 |
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254 CMMFDevSoundCIBitRateDeMux::~CMMFDevSoundCIBitRateDeMux() |
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255 { |
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256 iBitRateArray.Reset(); |
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257 iBitRateArray.Close(); |
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258 } |
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259 |
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260 |
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261 TInt CMMFDevSoundCIBitRateDeMux::DoOpenSlaveL(TUid /*aInterface*/, const TDesC8& /*aPackageBuf*/) |
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262 { |
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263 // fetch the bitrate custom interface |
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264 MMMFDevSoundCustomInterfaceBitRate* ptr = NULL; |
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265 ptr = static_cast <MMMFDevSoundCustomInterfaceBitRate*> (iTarget->CustomInterface(KUidCustomInterfaceDevSoundBitRate)); |
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266 |
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267 if (!ptr) |
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268 { |
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269 iBitRateInterface = NULL; |
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270 User::Leave(KErrNotSupported); |
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271 } |
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272 else |
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273 { |
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274 iBitRateInterface = ptr; |
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275 } |
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276 return KErrNone; |
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277 } |
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278 |
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279 void CMMFDevSoundCIBitRateDeMux::DoCloseSlaveL(TInt /*aHandle*/) |
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280 { |
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281 // nothing to do |
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282 } |
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283 |
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284 // original RMessage is supplied so that remote demux plugin can extract necessary details |
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285 // using DeMux utility |
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286 TInt CMMFDevSoundCIBitRateDeMux::DoSendSlaveSyncCommandL(const RMmfIpcMessage& aMessage) |
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287 { |
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288 TMMFDevSoundCIMessageData data; |
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289 |
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290 // decode message |
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291 iUtility->GetSyncMessageDataL(aMessage, data); |
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292 TInt retVal = -1; |
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293 |
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294 switch (data.iCommand) |
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295 { |
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296 case EMMFDevSoundCIBitRateBitRate: |
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297 { |
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298 retVal = DoBitRateL(); |
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299 break; |
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300 } |
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301 case EMMFDevSoundCIBitRateSetBitRate: |
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302 { |
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303 // we know that offset 2 contains a TInt |
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304 TPckgBuf<TInt> bitBuffer; |
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305 iUtility->ReadFromInputDesL(aMessage, &bitBuffer); |
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306 |
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307 DoSetBitRateL(bitBuffer()); |
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308 retVal = KErrNone; |
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309 break; |
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310 } |
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311 case EMMFDevSoundCIBitRateGetSupportedBitRates: |
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312 { |
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313 // reset the current bitrate array |
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314 iBitRateArray.Reset(); |
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315 DoGetSupportedBitRatesL(iBitRateArray); |
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316 |
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317 // send back the array count |
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318 TInt count = iBitRateArray.Count(); |
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319 retVal = count; |
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320 break; |
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321 } |
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322 default: |
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323 { |
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324 User::Leave(KErrNotSupported); |
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325 } |
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326 } |
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327 |
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328 return retVal; |
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329 } |
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330 |
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331 TInt CMMFDevSoundCIBitRateDeMux::DoSendSlaveSyncCommandResultL(const RMmfIpcMessage& aMessage) |
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332 { |
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333 TMMFDevSoundCIMessageData data; |
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334 |
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335 // decode message |
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336 iUtility->GetSyncMessageDataL(aMessage, data); |
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337 |
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338 switch (data.iCommand) |
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339 { |
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340 case EMMFDevSoundCIBitRateGetSupportedBitRatesArray: |
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341 { |
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342 DoCopyBitRateBufferToClientL(aMessage); |
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343 break; |
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344 } |
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345 default: |
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346 { |
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347 User::Leave(KErrNotSupported); |
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348 } |
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349 } |
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350 return KErrNone; |
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351 } |
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352 |
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353 void CMMFDevSoundCIBitRateDeMux::DoSendSlaveAsyncCommandL(const RMmfIpcMessage& /*aMessage*/) |
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354 { |
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355 // not used in this interface |
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356 } |
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357 |
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358 void CMMFDevSoundCIBitRateDeMux::DoSendSlaveAsyncCommandResultL(const RMmfIpcMessage& /*aMessage*/) |
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359 { |
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360 // not used in this interface |
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361 } |
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362 |
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363 // bitrate custom interface implementation |
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364 void CMMFDevSoundCIBitRateDeMux::DoGetSupportedBitRatesL(RArray<TInt>& aSupportedBitRates) |
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365 { |
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366 if (!iBitRateInterface) |
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367 { |
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368 User::Leave(KErrNotReady); |
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369 } |
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370 |
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371 iBitRateInterface->GetSupportedBitRatesL(aSupportedBitRates); |
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372 } |
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373 |
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374 |
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375 void CMMFDevSoundCIBitRateDeMux::DoCopyBitRateBufferToClientL(const RMmfIpcMessage& aMessage) |
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376 { |
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377 if (!iBitRateInterface) |
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378 { |
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379 User::Leave(KErrNotReady); |
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380 } |
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381 |
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382 // check our count is the same as the client's |
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383 TPckgBuf<TInt> countBuffer; |
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384 iUtility->ReadFromInputDesL(aMessage, &countBuffer); |
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385 |
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386 TInt count = countBuffer(); |
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387 if (count != iBitRateArray.Count()) |
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388 { |
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389 User::Leave(KErrCorrupt); |
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390 } |
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391 |
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392 // send back the array - the client has the count already |
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393 const TInt KBufExpandSize8 = 8; //two TInt's |
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394 CBufFlat* dataCopyBuffer = CBufFlat::NewL(KBufExpandSize8); |
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395 CleanupStack::PushL(dataCopyBuffer); |
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396 RBufWriteStream stream; |
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397 stream.Open(*dataCopyBuffer); |
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398 CleanupClosePushL(stream); |
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399 |
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400 for (TInt i = 0; i < count; i++) |
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401 { |
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402 stream.WriteInt32L(iBitRateArray[i]); |
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403 } |
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404 |
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405 // write the data to the supplied descriptor buffer |
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406 TPtr8 ptrBuf = dataCopyBuffer->Ptr(0); |
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407 iUtility->WriteToOutputDesL(aMessage, ptrBuf); |
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408 stream.Close(); |
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409 |
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410 CleanupStack::PopAndDestroy(2); // iDataCopyBuffer, stream |
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411 } |
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412 |
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413 |
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414 TInt CMMFDevSoundCIBitRateDeMux::DoBitRateL() |
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415 { |
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416 if (!iBitRateInterface) |
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417 { |
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418 User::Leave(KErrNotReady); |
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419 } |
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420 return iBitRateInterface->BitRateL(); |
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421 } |
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422 |
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423 void CMMFDevSoundCIBitRateDeMux::DoSetBitRateL(TInt aBitRate) |
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424 { |
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425 if (!iBitRateInterface) |
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426 { |
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427 User::Leave(KErrNotReady); |
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428 } |
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429 |
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430 // set the bitrate |
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431 iBitRateInterface->SetBitRateL(aBitRate); |
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432 } |
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433 |
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434 |
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435 |
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436 // |
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437 // ImplementationTable |
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438 // |
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439 |
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440 const TImplementationProxy ImplementationTable[] = |
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441 { |
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442 IMPLEMENTATION_PROXY_ENTRY(KMmfUidCustomInterfaceBitRateMux, CMMFDevSoundCIBitRateMux::NewL), |
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443 IMPLEMENTATION_PROXY_ENTRY(KMmfUidCustomInterfaceBitRateDeMux, CMMFDevSoundCIBitRateDeMux::NewL), |
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444 }; |
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445 |
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446 |
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447 // |
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448 // ImplementationGroupProxy |
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449 // |
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450 //////////////////////////////////////////////////////////////////////////////// |
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451 |
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452 EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount) |
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453 { |
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454 aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy); |
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455 |
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456 return ImplementationTable; |
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457 } |
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458 |
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459 |
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