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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_naviengine\ne1_tb\soundsc\sound.cpp |
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16 * Implementation of a sound physical device driver (PDD) factory |
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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 |
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22 #include "soundsc_plat.h" |
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23 #include <naviengine.h> |
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24 #include <i2s.h> |
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25 |
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26 _LIT(KSoundScPddName,"SoundSc.NE1_TBVariant"); |
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27 |
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28 // Definitions for the kernel thread created for this sound driver. |
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29 _LIT(KSoundScDriverThreadName,"SoundDriverThread"); |
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30 const TInt KSoundScDriverThreadPriority=26; // One less than DFC thread 0 (26) |
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31 |
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32 /** |
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33 Define a function at ordinal 0 which returns a new instance of a DPhysicalDevice-derived factory class. |
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34 */ |
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35 DECLARE_STANDARD_PDD() |
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36 { |
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37 return new DSoundScPddNE1_TB; |
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38 } |
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39 |
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40 /** |
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41 Constructor for the shared chunk sound PDD factory class. |
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42 */ |
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43 DSoundScPddNE1_TB::DSoundScPddNE1_TB() |
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44 { |
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45 __KTRACE_SND(Kern::Printf(">DSoundScPddNE1_TB::DSoundScPddNE1_TB")); |
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46 |
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47 // Support units KSoundScTxUnit0 & KSoundScRxUnit0. |
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48 iUnitsMask=(1<<KSoundScRxUnit0)|(1<<KSoundScTxUnit0); |
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49 |
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50 // Set version number for this device. |
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51 iVersion=RSoundSc::VersionRequired(); |
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52 } |
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53 |
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54 /** |
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55 Destructor for the shared chunk sound PDD factory class. |
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56 This function is called from the client thread context. |
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57 */ |
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58 DSoundScPddNE1_TB::~DSoundScPddNE1_TB() |
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59 { |
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60 __KTRACE_SND(Kern::Printf(">DSoundScPddNE1_TB::~DSoundScPddNE1_TB")); |
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61 |
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62 // Destroy the kernel thread. |
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63 if (iDfcQ) |
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64 { |
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65 iDfcQ->Destroy(); |
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66 } |
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67 } |
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68 |
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69 /** |
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70 Second stage constructor for the shared chunk sound PDD factory class. |
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71 @return KErrNone if successful, otherwise one of the other system wide error codes. |
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72 */ |
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73 TInt DSoundScPddNE1_TB::Install() |
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74 { |
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75 __KTRACE_SND(Kern::Printf(">DSoundScPddNE1_TB::Install")); |
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76 TInt r = KErrNone; |
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77 if (!iDfcQ) |
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78 { |
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79 // Create a new sound driver DFC queue (and associated kernel thread). |
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80 r = Kern::DynamicDfcQCreate(iDfcQ, KSoundScDriverThreadPriority, KSoundScDriverThreadName); |
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81 if (r != KErrNone) |
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82 { |
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83 return r; |
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84 } |
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85 } |
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86 |
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87 #ifdef CPU_AFFINITY_ANY |
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88 NKern::ThreadSetCpuAffinity((NThread*)(iDfcQ->iThread), KCpuAffinityAny); |
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89 #endif |
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90 |
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91 r = SetName(&KSoundScPddName); // Set the name of the driver object |
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92 |
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93 return(r); |
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94 } |
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95 |
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96 /** |
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97 Returns the PDD's capabilities. This is not used by the Symbian OS device driver framework |
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98 or by the LDD. |
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99 @param aDes A descriptor to write capabilities information into |
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100 */ |
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101 void DSoundScPddNE1_TB::GetCaps(TDes8& /*aDes*/) const |
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102 {} |
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103 |
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104 /** |
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105 Called by the kernel's device driver framework to check if this PDD is suitable for use |
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106 with a logical channel. |
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107 This is called in the context of the client thread which requested the creation of a logical |
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108 channel - through a call to RBusLogicalChannel::DoCreate(). |
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109 The thread is in a critical section. |
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110 @param aUnit The unit argument supplied by the client to RBusLogicalChannel::DoCreate(). |
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111 @param aInfo The info argument supplied by the client to RBusLogicalChannel::DoCreate() - not used. |
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112 @param aVer The version number of the logical channel which will use this physical channel. |
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113 @return KErrNone if successful, otherwise one of the other system wide error codes. |
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114 */ |
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115 TInt DSoundScPddNE1_TB::Validate(TInt aUnit, const TDesC8* /*aInfo*/, const TVersion& aVer) |
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116 { |
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117 // Check that the version specified is compatible. |
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118 if (!Kern::QueryVersionSupported(RSoundSc::VersionRequired(), aVer)) |
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119 { |
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120 return(KErrNotSupported); |
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121 } |
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122 |
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123 // Check the unit number is compatible |
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124 if (aUnit!=KSoundScTxUnit0 && aUnit!=KSoundScRxUnit0) |
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125 { |
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126 return(KErrNotSupported); |
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127 } |
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128 |
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129 return(KErrNone); |
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130 } |
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131 |
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132 /** |
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133 Called by the kernel's device driver framework to create a physical channel object. |
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134 This is called in the context of the client thread which requested the creation of a logical |
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135 channel - through a call to RBusLogicalChannel::DoCreate(). |
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136 The thread is in a critical section. |
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137 @param aChannel Set by this function to point to the created physical channel object. |
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138 @param aUnit The unit argument supplied by the client to RBusLogicalChannel::DoCreate(). |
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139 @param aInfo The info argument supplied by the client to RBusLogicalChannel::DoCreate(). |
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140 @param aVer The version number of the logical channel which will use this physical channel. |
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141 @return KErrNone if successful, otherwise one of the other system wide error codes. |
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142 */ |
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143 TInt DSoundScPddNE1_TB::Create(DBase*& aChannel, TInt aUnit, const TDesC8* /*anInfo*/, const TVersion& /*aVer*/) |
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144 { |
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145 __KTRACE_SND(Kern::Printf(">DSoundScPddNE1_TB::Create")); |
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146 |
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147 TInt r = KErrNone; |
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148 |
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149 // Create the appropriate PDD channel object. |
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150 DNE1_TBSoundScPddChannel* pD = NULL; |
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151 |
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152 if (aUnit==KSoundScRxUnit0) |
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153 { |
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154 // Create a record PDD channel object |
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155 pD = new DNE1_TBSoundScPddChannel(ESoundDirRecord); |
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156 } |
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157 else |
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158 { |
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159 // Create a playback PDD channel object |
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160 pD = new DNE1_TBSoundScPddChannel(ESoundDirPlayback); |
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161 } |
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162 |
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163 r = KErrNoMemory; |
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164 if (pD) |
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165 { |
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166 pD->iPhysicalDevice = this; |
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167 r = pD->DoCreate(); |
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168 aChannel = pD; |
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169 } |
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170 return(r); |
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171 } |