author | Ryan Harkin <ryan.harkin@nokia.com> |
Tue, 28 Sep 2010 18:00:05 +0100 | |
changeset 0 | 5de814552237 |
permissions | -rw-r--r-- |
0
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
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/* |
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* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* ne1_tb\specific\cs42l51.cpp |
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* |
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*/ |
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#include <kernel/kern_priv.h> |
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#include <naviengine.h> |
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#include <naviengine_priv.h> |
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#include <gpio.h> |
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#include "cs42l51.h" |
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|
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#define __THREAD_AND_CPU Kern::Printf("(Thread %T, CPU: %d)\n", NKern::CurrentThread(), NKern::CurrentCpu()) |
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//#define __KTRACE_SCODEC(s) s |
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#define __KTRACE_SCODEC(s) __KTRACE_OPT(KSOUND1, s) |
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#if _DEBUG |
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static const char KCodecPanicCat[] = "AUDIO CODEC, line:"; |
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#endif |
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|
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// other constants |
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const TUint KCodecCSIChannel = 0; |
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const TInt8 KBufGranularity = 8; // width of a transfer word in bits |
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|
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// CSI configuration parameters for the data transmission to the Codec. |
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const TConfigSpiV01 KCodecSpiV01Config = |
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{ |
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ESpiWordWidth_8, //iWordWidth |
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260000, //iClkSpeed |
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ESpiPolarityHighFallingEdge, //iClkMode |
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40, // iTimeoutPeriod |
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EBigEndian, // iEndianness |
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EMsbFirst, // iBitOrder |
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0, // iTransactionWaitCycles |
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ESpiCSPinActiveLow //iCsPinActiveMode |
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}; |
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|
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// static members |
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RCS42AudioCodec* RCS42AudioCodec::iSelf = 0; |
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TInt RCS42AudioCodec::iRefCnt = 0; |
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// default constructor |
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RCS42AudioCodec::RCS42AudioCodec() : |
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iHeaderBuff(KCodecSpiV01Config) |
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{ |
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} |
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|
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TInt RCS42AudioCodec::Create() |
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{ |
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__KTRACE_SCODEC(Kern::Printf("\n\nRCS42AudioCodec::Create()")); |
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if (!iSelf) |
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{ |
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iSelf = new RCS42AudioCodec; |
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if(!iSelf) |
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{ |
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return KErrNoMemory; |
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} |
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} |
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return KErrNone; |
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} |
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// free resources when the driver is beeing closed. |
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void RCS42AudioCodec::Destroy() |
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{ |
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__KTRACE_SCODEC(Kern::Printf("RCS42AudioCodec::Destroy()")); |
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__ASSERT_DEBUG(iSelf, Kern::Fault(KCodecPanicCat, __LINE__)); |
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|
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delete iSelf; |
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iSelf = 0; // static member |
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} |
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|
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// this static method is called from DNE1_TBSoundScPddChannel::PowerUp() |
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// to open an instance to the codec. If this is the first instance |
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// beeing opened - the codec is initialized. |
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TInt RCS42AudioCodec::Open(RCS42AudioCodec* &aSelf) |
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{ |
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__KTRACE_SCODEC(Kern::Printf("RCS42AudioCodec::Open()")); |
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|
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TInt r = KErrNone; |
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if(!iSelf) |
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{ |
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r = Create(); |
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if(r != KErrNone) |
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{ |
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return r; |
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} |
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} |
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|
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if (iRefCnt == 0) |
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{ |
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r = iSelf->Init(); |
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if (r != KErrNone) |
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{ |
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iSelf->PowerDown(); |
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return r; |
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} |
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} |
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// increment the reference counter |
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++iRefCnt; |
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|
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// copy object address back to the client |
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aSelf = iSelf; |
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|
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return KErrNone; |
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} |
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|
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// this static method is called from DNE1_TBSoundScPddChannel::PowerDown() |
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// to close the reference and power down the codec if the last reference is beeing closed. |
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void RCS42AudioCodec::Close(RCS42AudioCodec* &aSelf) |
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{ |
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__KTRACE_SCODEC(Kern::Printf("RCS42AudioCodec::Close()")) ; |
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|
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if (!aSelf || aSelf != iSelf) |
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129 |
{ |
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130 |
return; |
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131 |
} |
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132 |
|
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133 |
// decrement the reference counter |
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134 |
--iRefCnt; |
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135 |
|
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136 |
// if closing the last instance - power down the codec |
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137 |
if (iRefCnt == 0) |
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138 |
{ |
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139 |
iSelf->PowerDown(); |
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140 |
aSelf = 0; |
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141 |
Destroy(); |
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142 |
} |
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143 |
} |
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144 |
|
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145 |
// this method powers down the codec |
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146 |
void RCS42AudioCodec::PowerDown() |
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147 |
{ |
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148 |
if (iSelf) |
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149 |
{ |
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150 |
iSelf->StartWrite(); |
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151 |
iSelf->Write(KHwCS42L51DACOutputControl, |
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152 |
KHtCS42L51DACOutputControl_DACAB_MUTE); |
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153 |
|
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154 |
// - set PDN bit |
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155 |
iSelf->Write(KHwCS42L51PwrCtrl, KHtCS42L51PwrCtrl_PDN); |
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156 |
|
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157 |
#ifdef _DEBUG |
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158 |
TInt r = iSelf->StopWrite(); |
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159 |
__ASSERT_DEBUG(r == KErrNone, Kern::Printf("Coulnd't power down the CODEC r=%d ", r)); |
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__ASSERT_DEBUG(r == KErrNone, Kern::Fault(KCodecPanicCat, __LINE__)); |
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161 |
#else |
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162 |
iSelf->StopWrite(); |
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163 |
#endif |
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164 |
|
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165 |
// put !reset back to low.. |
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166 |
GPIO::SetOutputState(KCodecResetPin, GPIO::ELow); |
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167 |
} |
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168 |
} |
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169 |
|
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170 |
|
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171 |
// this is an internal method - to synchronously write the data to the bus. It sets up the transfer |
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172 |
// and waits for Interrupt - which puts back the CS (Chip Select) pin - to low after the |
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// data was sent out of the bus. |
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174 |
TInt RCS42AudioCodec::DoWrite(TUint16 aRegAddr, TUint16 aData) |
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175 |
{ |
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176 |
__KTRACE_SCODEC(Kern::Printf("RCS42AudioCodec::DoWrite()")); |
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177 |
TInt r = KErrNone; |
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178 |
|
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179 |
iTransBuff().iRegister = aRegAddr; |
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180 |
iTransBuff().iData = aData; |
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181 |
|
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182 |
// create a transfer object.. |
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183 |
TIicBusTransfer transfer(TIicBusTransfer::EMasterWrite, KBufGranularity, &iTransBuff); |
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184 |
|
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185 |
// Create transaction |
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186 |
TIicBusTransaction transaction(&iHeaderBuff, &transfer); |
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187 |
|
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188 |
// synchronously queue the write transaction |
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189 |
r = IicBus::QueueTransaction(iCsiBusConfig, &transaction); |
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190 |
return r; |
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191 |
} |
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192 |
|
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193 |
// to avoid multiple checking for each Write() call - if they are called in a row, |
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194 |
// precede each block of writes to be checked with StartWrite() which clears the iResult. |
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195 |
void RCS42AudioCodec::StartWrite() |
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196 |
{ |
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197 |
#if _DEBUG |
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198 |
iStartWriteCalled = ETrue; |
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199 |
#endif |
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200 |
iResult = KErrNone; |
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201 |
} |
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202 |
|
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203 |
// After each block calls to Write() check the global status of them by calling this method. |
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204 |
TInt RCS42AudioCodec::StopWrite() |
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205 |
{ |
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|
206 |
#if _DEBUG |
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207 |
iStartWriteCalled = EFalse; |
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|
208 |
#endif |
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|
209 |
return iResult; |
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210 |
} |
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|
211 |
|
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212 |
// this is an internal method - used to configure the codec. It can be called |
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213 |
// multiple times - whithout checkin for results. Precondition is - to call StartWrite() |
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214 |
// and the overall result of multiple calls to this method are gathered using StopWrite() |
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215 |
void RCS42AudioCodec::Write(TUint16 aRegAddr, TUint16 aData) |
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216 |
{ |
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217 |
__ASSERT_DEBUG(iStartWriteCalled, Kern::Printf("block of multiple Write() calls should be preceded with StartWrite()")); |
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218 |
__ASSERT_DEBUG(iStartWriteCalled, Kern::Fault(KCodecPanicCat, __LINE__)); |
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|
219 |
|
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220 |
if (iResult != KErrNone) |
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221 |
{ |
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222 |
return; // there was an error during one of previous write calls, just return |
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223 |
} |
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224 |
// if all calls proceeding StartWrite() were successful, continue to call the proper write |
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225 |
iResult = DoWrite(aRegAddr, aData); |
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226 |
} |
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227 |
|
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228 |
// This method is used to configure the CSI interface and then - the Codec. |
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229 |
TInt RCS42AudioCodec::Init() |
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230 |
{ |
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231 |
__KTRACE_SCODEC(Kern::Printf("RCS42AudioCodec::Init()")); |
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232 |
TUint32 val; |
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233 |
|
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234 |
// First byte for the Cocec's write request on the CSI bus: (first seven bits-address, 8th-Write idication) |
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235 |
iTransBuff().iAddress = KCodecWriteCommand; |
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|
236 |
|
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237 |
// Enter the BusRealisation config specific to CSI |
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238 |
SET_BUS_TYPE(iCsiBusConfig,DIicBusChannel::ESpi); //Bus Type |
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|
239 |
SET_CHAN_NUM(iCsiBusConfig,(TUint8)KCodecCSIChannel); // SPI uses channel numbers 1,2 (CSI0 and CSI1) |
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240 |
SET_SLAVE_ADDR(iCsiBusConfig,KCodecCSPin); // Codec Pin Number |
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|
241 |
|
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242 |
// enable and configure pin 25 - it is connected to the chip's reset line |
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|
243 |
GPIO::SetPinMode(KCodecResetPin, GPIO::EEnabled); |
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|
244 |
GPIO::SetPinDirection(KCodecResetPin, GPIO::EOutput); |
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|
245 |
GPIO::SetDebounceTime(KCodecResetPin, 0); |
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|
246 |
|
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|
247 |
//==================================== |
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248 |
//configure the CODEC: |
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249 |
// put !reset line high to start the power-up sequence.. |
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|
250 |
GPIO::SetOutputState(KCodecResetPin, GPIO::EHigh); |
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|
251 |
|
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|
252 |
// start multiple Write() block here |
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|
253 |
StartWrite(); |
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254 |
|
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|
255 |
// Write are used here.. |
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|
256 |
// power-up sequence.. |
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|
257 |
Write(KHwCS42L51PwrCtrl, KHtCS42L51PwrCtrl_PDN); |
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Initial contribution supporting NaviEngine 1
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|
258 |
Write(KHwCS42L51PwrCtrl, KHtCS42L51PwrCtrl_PDN_ALL); |
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|
259 |
|
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260 |
// freeze all registers.. until are set-up.. |
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|
261 |
Write(KHwCS42L51DACControl, KHtCS42L51DACControl_FREEZE); |
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Initial contribution supporting NaviEngine 1
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|
262 |
|
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|
263 |
// Mic power control and speed control (0x03) |
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Initial contribution supporting NaviEngine 1
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diff
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|
264 |
Write(KHwCS42L51MicPwrSpeed, KHtCS42L51MicPwrSpeed_AUTO |
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Initial contribution supporting NaviEngine 1
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parents:
diff
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|
265 |
| KHtCS42L51MicPwrSpeed_MCLKDIV2); // auto, |
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Initial contribution supporting NaviEngine 1
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|
266 |
|
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|
267 |
// interface control (0x04) // serial port settings.. |
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Initial contribution supporting NaviEngine 1
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|
268 |
// I2s, Slave, SDOUT->SDIN internally connected.. Digimix->ON? |
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Initial contribution supporting NaviEngine 1
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|
269 |
|
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|
270 |
// use I2S format, Slave |
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Initial contribution supporting NaviEngine 1
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|
271 |
iInterfaceCtrlVal = KHCS42L51CtrlI2sUpto24bit << KHsCS42L51CtrlFormat; |
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|
272 |
|
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|
273 |
// Digital & Mic mix |
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|
274 |
iInterfaceCtrlVal |= KHtCS42L51Ctrl_DIGMIX | KHtCS42L51Ctrl_MICMIX; |
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Initial contribution supporting NaviEngine 1
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|
275 |
Write(KHwCS42L51Ctrl, iInterfaceCtrlVal); |
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|
276 |
|
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|
277 |
// MIC Control - enable mic pre-amplifierboost (there is also ADC digital boost) |
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Initial contribution supporting NaviEngine 1
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|
278 |
// which we can use in addition to this one - but it would- work fine whitout any. |
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Initial contribution supporting NaviEngine 1
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|
279 |
val = KHtCS42L51MicCtrl_MICA_BOOST; |
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Initial contribution supporting NaviEngine 1
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|
280 |
Write(KHwCS42L51MicCtrl, val); |
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Initial contribution supporting NaviEngine 1
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|
281 |
|
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Initial contribution supporting NaviEngine 1
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|
282 |
// ADCx Input Select, Invert & Mute |
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Initial contribution supporting NaviEngine 1
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|
283 |
/* |
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Initial contribution supporting NaviEngine 1
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|
284 |
PDN_PGAx AINx_MUX[1:0] Selected Path to ADC |
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Initial contribution supporting NaviEngine 1
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|
285 |
0 00 AIN1x-->PGAx |
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Initial contribution supporting NaviEngine 1
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|
286 |
0 01 AIN2x-->PGAx |
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Initial contribution supporting NaviEngine 1
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parents:
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|
287 |
0 10 AIN3x/MICINx-->PGAx |
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Initial contribution supporting NaviEngine 1
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parents:
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|
288 |
0 11 AIN3x/MICINx-->Pre-Amp(+16/+32 dB Gain)-->PGAx |
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|
289 |
1 00 AIN1x |
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Initial contribution supporting NaviEngine 1
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|
290 |
1 01 AIN2x |
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Initial contribution supporting NaviEngine 1
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291 |
1 10 AIN3x/MICINx |
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Initial contribution supporting NaviEngine 1
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|
292 |
1 11 Reserved */ |
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|
293 |
|
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|
294 |
val = 3 << KHsCS42L51ADCInputMute_AINA_MUX; |
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Initial contribution supporting NaviEngine 1
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|
295 |
val |= 3 << KHsCS42L51ADCInputMute_AINB_MUX; |
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Initial contribution supporting NaviEngine 1
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parents:
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|
296 |
Write(KHwCS42L51ADCInputMute, val); |
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Initial contribution supporting NaviEngine 1
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|
297 |
|
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|
298 |
// DAC output select (0x08) |
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Initial contribution supporting NaviEngine 1
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|
299 |
// HP_GAIN2 HP_GAIN1 HP_GAIN0 DAC_SNGVOL INV_PCMB INV_PCMA DACB_MUTE DACA_MUTE |
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Initial contribution supporting NaviEngine 1
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parents:
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|
300 |
Write(KHwCS42L51DACOutputControl, KHtCS42L51DACOutputControl_DAC_SNGVOL); |
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Initial contribution supporting NaviEngine 1
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|
301 |
|
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Initial contribution supporting NaviEngine 1
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|
302 |
// ALCX & PGAX ctrl, A(0x0A), B (0x0B) |
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Initial contribution supporting NaviEngine 1
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parents:
diff
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|
303 |
Write(KHwCS42L51ALC_PGA_A_Control, 0); |
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Initial contribution supporting NaviEngine 1
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parents:
diff
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|
304 |
Write(KHwCS42L51ALC_PGA_B_Control, 0); |
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Initial contribution supporting NaviEngine 1
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parents:
diff
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|
305 |
|
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Initial contribution supporting NaviEngine 1
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parents:
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|
306 |
// ADCx Mixer Volume Ctrl A(0x0E), B (0x0F) |
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Initial contribution supporting NaviEngine 1
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parents:
diff
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|
307 |
Write(KHwCS42L51ALC_ADC_A_MixVolume, KHbCS42L51ALC_Volume_Min); |
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Initial contribution supporting NaviEngine 1
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parents:
diff
changeset
|
308 |
Write(KHwCS42L51ALC_ADC_B_MixVolume, KHbCS42L51ALC_Volume_Min); |
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Initial contribution supporting NaviEngine 1
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parents:
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|
309 |
|
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|
310 |
// PCMx Volume Ctrl A(0x10), B (0x11) |
5de814552237
Initial contribution supporting NaviEngine 1
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parents:
diff
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|
311 |
Write(KHwCS42L51ALC_PCM_A_MixVolume, 0x18); |
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Initial contribution supporting NaviEngine 1
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parents:
diff
changeset
|
312 |
Write(KHwCS42L51ALC_PCM_B_MixVolume, 0x18); |
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Initial contribution supporting NaviEngine 1
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parents:
diff
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|
313 |
|
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Initial contribution supporting NaviEngine 1
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parents:
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|
314 |
// Volume Control: AOUTA (Address 16h) & AOUTB (Address 17h) |
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Initial contribution supporting NaviEngine 1
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parents:
diff
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|
315 |
Write(KHwCS42L51ALC_Out_A_Volume, KHbCS42L51ALC_Volume_Min); |
5de814552237
Initial contribution supporting NaviEngine 1
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parents:
diff
changeset
|
316 |
Write(KHwCS42L51ALC_Out_B_Volume, KHbCS42L51ALC_Volume_Min); |
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Initial contribution supporting NaviEngine 1
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parents:
diff
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|
317 |
|
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Initial contribution supporting NaviEngine 1
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|
318 |
// DAC Control (Address 09h) |
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Initial contribution supporting NaviEngine 1
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parents:
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|
319 |
// 7 6 5 4 3 2 1 0 |
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Initial contribution supporting NaviEngine 1
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parents:
diff
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|
320 |
// DATA_SEL1 DATA_SEL0 FREEZE Reserved DEEMPH AMUTE DAC_SZC1 DAC_SZC0 |
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Initial contribution supporting NaviEngine 1
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parents:
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|
321 |
// DATA_SEL1 DATA_SEL0: |
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Initial contribution supporting NaviEngine 1
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parents:
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|
322 |
// 00 - PCM Serial Port to DAC |
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Initial contribution supporting NaviEngine 1
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parents:
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|
323 |
// 01 - Signal Processing Engine to DAC |
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Initial contribution supporting NaviEngine 1
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parents:
diff
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|
324 |
// 10 - ADC Serial Port to DAC (11 - Reserved) |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
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|
325 |
Write(KHwCS42L51DACControl, 1<<KHsCS42L51DACControl_DATA_SEL); // also clearing freeze bit will update settings.. |
5de814552237
Initial contribution supporting NaviEngine 1
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parents:
diff
changeset
|
326 |
|
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Initial contribution supporting NaviEngine 1
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parents:
diff
changeset
|
327 |
// let's rock!! - boost bass and treble a bit ;) |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
328 |
// values for nibbles change from 0: +12dB (maximum) boost, |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
329 |
// to 15:(minimum) -10.5dB boost. 8: 0dB - play 'as it is' |
5de814552237
Initial contribution supporting NaviEngine 1
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parents:
diff
changeset
|
330 |
val = (5 << KHsCS42L51ALC_ToneCtrl_TREB) | (6 |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
331 |
<< KHsCS42L51ALC_ToneCtrl_BASS); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
332 |
Write(KHwCS42L51ALC_ToneCtrl, val); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
333 |
|
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
334 |
// power-up sequence.. - clear PDN ..after loading register settings.. |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
335 |
Write(KHwCS42L51PwrCtrl, 0); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
336 |
|
5de814552237
Initial contribution supporting NaviEngine 1
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parents:
diff
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|
337 |
// This will return the error status, if any of Write() was not successful or KErrNone otherwise |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
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|
338 |
return StopWrite(); |
5de814552237
Initial contribution supporting NaviEngine 1
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parents:
diff
changeset
|
339 |
} |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
340 |
|
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
341 |
// this method is called from the sound-driver thread context to set the requested playback volume |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
342 |
TInt RCS42AudioCodec::SetPlayVolume(TInt aVolume) |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
343 |
{ |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
344 |
__KTRACE_SCODEC(Kern::Printf("RCS42AudioCodec::SetPlayVolume(%d)")); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
345 |
// +12 db = 0001 1000 (24) |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
346 |
// 0db = 0000 0000 (0) |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
347 |
//-0.5db = 1111 1111 (255) |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
348 |
//-102db = 0001 1001 (25) |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
349 |
TUint8 volume = 0xff & (aVolume + KHbCS42L51ALC_Volume_Min); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
350 |
|
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
351 |
StartWrite(); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
352 |
Write(KHwCS42L51ALC_Out_A_Volume, volume); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
353 |
Write(KHwCS42L51ALC_Out_B_Volume, volume); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
354 |
TInt r = StopWrite(); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
355 |
|
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
356 |
return r; |
5de814552237
Initial contribution supporting NaviEngine 1
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parents:
diff
changeset
|
357 |
} |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
358 |
|
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
359 |
// this method is called from the sound-driver thread context to set the requested record volume |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
360 |
TInt RCS42AudioCodec::SetRecordVolume(TInt aVolume) |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
361 |
{ |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
362 |
__KTRACE_SCODEC(Kern::Printf("RCS42AudioCodec::SetRecordVolume(%d)")); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
363 |
// +12 db = 0001 1000 (24) |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
364 |
// 0db = 0000 0000 (0) |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
365 |
//-0.5db = 1111 1111 (255) |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
366 |
//-102db = 0001 1001 (25) |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
367 |
TUint8 volume = 0xff & (aVolume + KHbCS42L51ALC_Volume_Min); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
368 |
|
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
369 |
StartWrite(); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
370 |
Write(KHwCS42L51ALC_ADC_A_MixVolume, volume); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
371 |
Write(KHwCS42L51ALC_ADC_B_MixVolume, volume); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
372 |
TInt r = StopWrite(); |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
373 |
|
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
374 |
return r; |
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
parents:
diff
changeset
|
375 |
} |