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1 /* |
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2 * Copyright (c) 2008-2009 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 "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 * bsp\hwip_nec_navienegine\navienegine_assp\i2s.h |
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16 * |
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17 */ |
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18 |
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19 |
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20 |
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21 #include <e32cmn.h> |
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22 #include <e32def.h> |
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23 #include <naviengine_priv.h> |
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24 #include <i2s.h> |
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25 |
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26 |
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27 // |
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28 // each channel should implemment the platform specific interface |
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29 |
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30 class DI2sChannelBase |
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31 { |
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32 public: |
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33 static TInt CreateChannels(DI2sChannelBase*& aChannel, TInt aInterfaceId); |
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34 |
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35 virtual TInt ConfigureInterface(TDes8* aConfig) = 0; |
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36 virtual TInt GetInterfaceConfiguration(TDes8& aConfig) = 0; |
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37 virtual TInt SetSamplingRate(TInt aSamplingRate) = 0; |
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38 virtual TInt GetSamplingRate(TInt& aSamplingRate) = 0; |
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39 virtual TInt SetFrameLengthAndFormat(TInt aFrameLength, TInt aLeftFramePhaseLength) = 0; |
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40 virtual TInt GetFrameFormat(TInt& aLeftFramePhaseLength, TInt& aRightFramePhaseLength) = 0; |
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41 virtual TInt SetSampleLength(TInt aFramePhase, TInt aSampleLength) = 0; |
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42 virtual TInt GetSampleLength(TInt aFramePhase, TInt& aSampleLength) = 0; |
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43 virtual TInt SetDelayCycles(TInt aFramePhase, TInt aDelayCycles) = 0; |
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44 virtual TInt GetDelayCycles(TInt aFramePhase, TInt& aDelayCycles) = 0; |
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45 virtual TInt ReadReceiveRegister(TInt aFramePhase, TInt& aData) = 0; |
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46 virtual TInt WriteTransmitRegister(TInt aFramePhase, TInt aData) = 0; |
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47 virtual TInt ReadTransmitRegister(TInt aFramePhase, TInt& aData) = 0; |
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48 virtual TInt ReadRegisterModeStatus(TInt aFramePhase, TInt& aFlags) = 0; |
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49 virtual TInt EnableRegisterInterrupts(TInt aFramePhase, TInt aInterrupt) = 0; |
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50 virtual TInt DisableRegisterInterrupts(TInt aFramePhase, TInt aInterrupt) = 0; |
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51 virtual TInt IsRegisterInterruptEnabled(TInt aFramePhase, TInt& aEnabled) = 0; |
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52 virtual TInt EnableFIFO(TInt aFramePhase, TInt aFifoMask) = 0; |
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53 virtual TInt DisableFIFO(TInt aFramePhase, TInt aFifoMask) = 0; |
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54 virtual TInt IsFIFOEnabled(TInt aFramePhase, TInt& aEnabled) = 0; |
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55 virtual TInt SetFIFOThreshold(TInt aFramePhase, TInt aDirection, TInt aThreshold) = 0; |
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56 virtual TInt ReadFIFOModeStatus(TInt aFramePhase, TInt& aFlags) = 0; |
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57 virtual TInt EnableFIFOInterrupts(TInt aFramePhase, TInt aInterrupt) = 0; |
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58 virtual TInt DisableFIFOInterrupts(TInt aFramePhase, TInt aInterrupt) = 0; |
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59 virtual TInt IsFIFOInterruptEnabled(TInt aFramePhase, TInt& aEnabled) = 0; |
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60 virtual TInt ReadFIFOLevel(TInt aFramePhase, TInt aDirection, TInt& aLevel) = 0; |
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61 virtual TInt EnableDMA(TInt aFifoMask) = 0; |
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62 virtual TInt DisableDMA(TInt aFifoMask) = 0; |
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63 virtual TInt IsDMAEnabled(TInt& aEnabled) = 0; |
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64 virtual TInt Start(TInt aDirection) = 0; |
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65 virtual TInt Stop(TInt aDirection) = 0; |
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66 virtual TInt IsStarted(TInt aDirection, TBool& aStarted) = 0; |
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67 |
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68 protected: |
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69 TInt iInterfaceId; |
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70 TI2sConfigV01 iConfig; |
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71 }; |
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72 |
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73 /** |
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74 The management class for all I2S channels |
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75 */ |
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76 class TI2sManager |
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77 { |
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78 public: |
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79 // initialisation |
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80 TInt DoCreate(); |
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81 public: |
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82 static DI2sChannelBase **iChannels; // array of pointers to channels (populated in DoCreate); indexed by the channel number portion of interface ID (bottom 16 bits) |
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83 static TInt iChannelsNum; // to store number of channels present on the system (obtained from ConfRep and set in DoCreate) |
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84 }; |
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85 |