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1 /* |
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2 * Copyright (c) 2009 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 the License "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 #include "shared_sound.h" |
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19 #include "variant_sound.h" |
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20 |
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21 void TimerCallback(TAny* aData) |
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22 { |
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23 DDriverBeagleSoundScPdd * soundscpdd = (DDriverBeagleSoundScPdd*) aData; |
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24 |
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25 soundscpdd->Callback(soundscpdd->iTransferArray[0].iTransferID, KErrNone, soundscpdd->iTransferArray[0].iNumBytes); |
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26 |
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27 } |
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28 |
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29 |
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30 DDriverBeagleSoundScPdd::DDriverBeagleSoundScPdd() : iTimer(TimerCallback,this) |
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31 { |
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32 |
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33 } |
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34 |
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35 DDriverBeagleSoundScPdd::~DDriverBeagleSoundScPdd() |
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36 { |
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37 iTimer.Cancel(); |
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38 } |
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39 |
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40 |
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41 TInt DDriverBeagleSoundScPdd::DoCreate() |
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42 { |
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43 |
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44 SetCaps(); |
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45 |
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46 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::DoCreate TxPdd"); |
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47 |
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48 return KErrNone; |
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49 } |
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50 |
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51 void DDriverBeagleSoundScPdd::GetChunkCreateInfo(TChunkCreateInfo& aChunkCreateInfo) |
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52 { |
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53 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::GetChunkCreateInfo TxPdd"); |
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54 |
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55 aChunkCreateInfo.iType = TChunkCreateInfo::ESharedKernelMultiple; |
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56 aChunkCreateInfo.iMapAttr = EMapAttrFullyBlocking; // No caching |
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57 aChunkCreateInfo.iOwnsMemory = ETrue; // Using RAM pages |
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58 aChunkCreateInfo.iDestroyedDfc = NULL; // No chunk destroy DFC |
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59 } |
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60 |
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61 void DDriverBeagleSoundScPdd::Caps(TDes8& aCapsBuf) const |
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62 { |
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63 |
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64 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::Caps TxPdd"); |
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65 |
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66 // Fill the structure with zeros in case it is a newer version than we know about |
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67 aCapsBuf.FillZ(aCapsBuf.MaxLength()); |
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68 |
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69 // And copy the capabilities into the packaged structure |
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70 TPtrC8 ptr((const TUint8*) &iCaps, sizeof(iCaps)); |
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71 aCapsBuf = ptr.Left(Min(ptr.Length(), aCapsBuf.MaxLength())); |
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72 } |
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73 |
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74 TInt DDriverBeagleSoundScPdd::SetConfig(const TDesC8& aConfigBuf) |
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75 { |
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76 |
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77 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::SetConfig TxPdd"); |
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78 |
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79 // Read the new configuration from the LDD |
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80 TCurrentSoundFormatV02 config; |
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81 TPtr8 ptr((TUint8*) &config, sizeof(config)); |
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82 Kern::InfoCopy(ptr, aConfigBuf); |
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83 |
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84 iConfig = config; |
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85 |
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86 return KErrNone; |
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87 } |
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88 |
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89 |
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90 TInt DDriverBeagleSoundScPdd::SetVolume(TInt aVolume) |
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91 { |
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92 |
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93 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::Setvolume TxPdd"); |
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94 |
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95 return KErrNone; |
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96 } |
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97 |
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98 |
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99 TInt DDriverBeagleSoundScPdd::StartTransfer() |
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100 { |
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101 |
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102 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::starttransfer TxPdd"); |
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103 |
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104 //Prepare for transfer |
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105 return KErrNone; |
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106 |
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107 } |
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108 |
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109 TInt DDriverBeagleSoundScPdd::CalculateBufferTime(TInt aNumBytes) |
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110 { |
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111 |
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112 TUint samplerate=0; |
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113 |
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114 // Let the compiler perform an integer division of rates |
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115 switch(iConfig.iRate) |
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116 { |
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117 case ESoundRate7350Hz: samplerate = 7350; break; |
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118 case ESoundRate8000Hz: samplerate = 8000; break; |
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119 case ESoundRate8820Hz: samplerate = 8820; break; |
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120 case ESoundRate9600Hz: samplerate = 9600; break; |
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121 case ESoundRate11025Hz: samplerate = 11025; break; |
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122 case ESoundRate12000Hz: samplerate = 12000; break; |
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123 case ESoundRate14700Hz: samplerate = 14700; break; |
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124 case ESoundRate16000Hz: samplerate = 16000; break; |
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125 case ESoundRate22050Hz: samplerate = 22050; break; |
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126 case ESoundRate24000Hz: samplerate = 24000; break; |
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127 case ESoundRate29400Hz: samplerate = 29400; break; |
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128 case ESoundRate32000Hz: samplerate = 32000; break; |
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129 case ESoundRate44100Hz: samplerate = 44100; break; |
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130 case ESoundRate48000Hz: samplerate = 48000; break; |
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131 } |
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132 |
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133 |
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134 // integer division by number of channels |
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135 aNumBytes /= iConfig.iChannels; |
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136 |
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137 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::iChannels =%d", iConfig.iChannels); |
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138 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::iEncoding =%d", iConfig.iEncoding); |
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139 |
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140 // integer division by bytes per sample |
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141 switch(iConfig.iEncoding) |
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142 { |
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143 case ESoundEncoding8BitPCM: break; |
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144 case ESoundEncoding16BitPCM: aNumBytes /= 2; break; |
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145 case ESoundEncoding24BitPCM: aNumBytes /= 3; break; |
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146 } |
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147 |
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148 return (aNumBytes * 1000) / samplerate; //return time in milliseconds |
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149 |
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150 |
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151 } |
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152 |
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153 TInt DDriverBeagleSoundScPdd::TransferData(TUint aTransferID, TLinAddr aLinAddr, TPhysAddr /*aPhysAddr*/, TInt aNumBytes) |
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154 { |
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155 |
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156 //function wil get called multiple times while transfer is in progress therefore keep fifo queue of requests |
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157 TTransferArrayInfo transfer; |
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158 |
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159 transfer.iTransferID = aTransferID; |
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160 transfer.iLinAddr = aLinAddr; |
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161 transfer.iNumBytes = aNumBytes; |
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162 |
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163 //calculate the amount of time required to play/record buffer |
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164 TInt buffer_play_time = CalculateBufferTime(aNumBytes); |
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165 TInt timerticks = NKern::TimerTicks(buffer_play_time); |
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166 transfer.iPlayTime = timerticks; |
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167 |
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168 iTransferArray.Append(transfer); |
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169 |
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170 //Timer will callback when correct time has elapsed, will return KErrInUse if transfer |
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171 //already active, this is ok becuase will be started again in callback |
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172 TInt err = iTimer.OneShot(timerticks, ETrue); |
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173 |
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174 |
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175 return KErrNone; |
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176 } |
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177 |
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178 void DDriverBeagleSoundScPdd::StopTransfer() |
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179 { |
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180 // Stop transfer |
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181 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::stoptransfer TxPdd"); |
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182 |
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183 //If timer is currently active then cancel it and call back buffer |
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184 if(iTimer.Cancel()) |
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185 { |
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186 Callback(iTransferArray[0].iTransferID, KErrNone, iTransferArray[0].iNumBytes); |
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187 } |
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188 |
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189 |
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190 } |
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191 |
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192 |
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193 TInt DDriverBeagleSoundScPdd::PauseTransfer() |
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194 { |
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195 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::pausetransfer TxPdd"); |
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196 //Pause Transfer |
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197 |
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198 return KErrNone; |
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199 } |
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200 |
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201 |
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202 TInt DDriverBeagleSoundScPdd::ResumeTransfer() |
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203 { |
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204 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::resumetransfer TxPdd"); |
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205 //Resume Transfer |
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206 |
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207 return KErrNone; |
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208 } |
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209 |
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210 TInt DDriverBeagleSoundScPdd::PowerUp() |
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211 { |
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212 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::PowerUp TxPdd"); |
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213 return KErrNone; |
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214 } |
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215 |
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216 void DDriverBeagleSoundScPdd::PowerDown() |
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217 { |
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218 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::Powerdown TxPdd"); |
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219 } |
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220 |
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221 TInt DDriverBeagleSoundScPdd::CustomConfig(TInt /*aFunction*/,TAny* /*aParam*/) |
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222 { |
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223 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::customconfig TxPdd"); |
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224 return KErrNotSupported; |
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225 } |
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226 |
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227 |
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228 void DDriverBeagleSoundScPdd::Callback(TUint aTransferID, TInt aTransferResult, TInt aBytesTransferred) |
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229 { |
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230 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::playcallback TxPdd"); |
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231 //Callback when Transfer completes or is stopped |
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232 |
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233 iTransferArray.Remove(0); |
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234 |
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235 if(iUnitType == KSoundScTxUnit0) |
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236 { |
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237 Ldd()->PlayCallback(aTransferID, aTransferResult, aBytesTransferred); |
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238 } |
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239 else if(iUnitType == KSoundScRxUnit0) |
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240 { |
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241 Ldd()->RecordCallback(aTransferID, aTransferResult, aBytesTransferred); |
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242 } |
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243 |
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244 if( iTransferArray.Count()>0) |
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245 { |
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246 iTimer.OneShot(iTransferArray[0].iPlayTime, ETrue); |
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247 } |
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248 |
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249 } |
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250 |
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251 TDfcQue*DDriverBeagleSoundScPdd::DfcQ(TInt /* aUnit*/ ) |
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252 { |
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253 return this->DfcQ(); |
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254 } |
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255 |
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256 TDfcQue*DDriverBeagleSoundScPdd::DfcQ() |
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257 { |
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258 return iPhysicalDevice->iDfcQ; |
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259 } |
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260 |
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261 TInt DDriverBeagleSoundScPdd::MaxTransferLen() const |
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262 { |
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263 |
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264 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::MaxTransferLen TxPdd"); |
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265 |
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266 TInt maxlength = 200*1024; |
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267 return maxlength; |
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268 } |
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269 |
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270 |
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271 void DDriverBeagleSoundScPdd::SetCaps() |
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272 { |
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273 BEAGLE_SOUND_DEBUG("DDriverBeagleSoundScPdd::SetCaps TxPdd"); |
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274 |
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275 if(iUnitType == KSoundScTxUnit0) |
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276 { |
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277 // The data transfer direction for this unit is play |
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278 iCaps.iDirection = ESoundDirPlayback; |
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279 } |
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280 else if(iUnitType == KSoundScRxUnit0) |
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281 { |
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282 // The data transfer direction for this unit is record |
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283 iCaps.iDirection = ESoundDirRecord; |
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284 } |
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285 |
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286 // This unit supports both mono and stereo |
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287 iCaps.iChannels = (KSoundMonoChannel | KSoundStereoChannel); |
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288 |
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289 // This unit supports only some of the sample rates offered by Symbian OS |
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290 iCaps.iRates = (KSoundRate8000Hz | KSoundRate11025Hz | KSoundRate12000Hz | KSoundRate16000Hz | |
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291 KSoundRate22050Hz | KSoundRate24000Hz | KSoundRate32000Hz | KSoundRate44100Hz | |
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292 KSoundRate48000Hz); |
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293 |
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294 // This unit only supports 16bit PCM encoding |
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295 iCaps.iEncodings = KSoundEncoding16BitPCM; |
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296 |
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297 // This unit only supports interleaved data format when playing stereo; that is, a PCM data |
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298 // stream where the left and right channel samples are interleaved as L-R-L-R-L-R etc. |
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299 iCaps.iDataFormats = KSoundDataFormatInterleaved; |
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300 |
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301 // The iRequestMinSize member is named badly. It is actually the value of which the length samples |
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302 // must be a multiple of. ie. The sample length % iRequestMinSize must == 0. This value must always |
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303 // be a power of 2 |
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304 iCaps.iRequestMinSize = 4; |
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305 |
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306 // The logarithm to base 2 of the alignment required for request arguments. DMA requests must be |
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307 // aligned to a 32 bit boundary |
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308 iCaps.iRequestAlignment = 2; |
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309 |
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310 // This unit is not capable of detecting changes in hardware configuration |
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311 iCaps.iHwConfigNotificationSupport = EFalse; |
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312 } |
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313 |
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314 |
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315 |
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316 |