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1 /* |
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2 * Copyright (c) 2008 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: Implementation |
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15 * |
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16 */ |
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17 |
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18 #include <usbotgdefs.h> |
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19 |
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20 #include "cusbidpinobserver.h" |
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21 |
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22 #include "definitions.h" |
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23 #include "debug.h" |
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24 #include "panic.h" |
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25 |
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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 CUsbIdPinObserver::CUsbIdPinObserver() : |
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31 CActive(EPriorityStandard) |
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32 { |
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33 CActiveScheduler::Add(this); |
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34 } |
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35 |
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36 // --------------------------------------------------------------------------- |
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37 // |
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38 // --------------------------------------------------------------------------- |
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39 // |
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40 void CUsbIdPinObserver::ConstructL() |
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41 { |
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42 LOG_FUNC |
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43 |
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44 LEAVEIFERROR(iIdPin.Attach(KUidUsbManCategory, |
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45 KUsbOtgIdPinPresentProperty)); |
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46 |
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47 } |
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48 |
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49 // --------------------------------------------------------------------------- |
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50 // |
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51 // --------------------------------------------------------------------------- |
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52 // |
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53 CUsbIdPinObserver* CUsbIdPinObserver::NewL() |
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54 { |
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55 LOG_FUNC |
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56 |
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57 CUsbIdPinObserver* self = new (ELeave) CUsbIdPinObserver(); |
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58 CleanupStack::PushL(self); |
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59 self->ConstructL(); |
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60 CleanupStack::Pop(self); |
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61 return self; |
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62 } |
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63 |
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64 // --------------------------------------------------------------------------- |
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65 // |
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66 // --------------------------------------------------------------------------- |
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67 // |
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68 CUsbIdPinObserver::~CUsbIdPinObserver() |
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69 { |
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70 LOG_FUNC |
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71 |
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72 Cancel(); |
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73 |
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74 iIdPin.Close(); |
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75 |
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76 iObservers.Close(); |
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77 |
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78 } |
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79 |
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80 // --------------------------------------------------------------------------- |
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81 // |
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82 // --------------------------------------------------------------------------- |
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83 // |
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84 CUsbIdPinObserver::TState CUsbIdPinObserver::IdPin() |
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85 /* this getter is not const, because for some reason RProperty::Get is not const */ |
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86 { |
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87 |
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88 TInt val(0); |
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89 |
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90 TInt err = iIdPin.Get(val); |
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91 |
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92 if (KErrNone != err) |
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93 { |
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94 LOG("CanNotGetIdPinProperty" ); |
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95 PANIC( ECanNotGetIdPinProperty); |
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96 } |
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97 |
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98 return (EFalse == val ? EIdPinOff : EIdPinOn); |
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99 } |
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100 |
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101 // --------------------------------------------------------------------------- |
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102 // |
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103 // --------------------------------------------------------------------------- |
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104 // |
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105 void CUsbIdPinObserver::SubscribeL(MUsbIdPinObserver& aObserver) |
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106 { |
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107 LOG_FUNC |
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108 |
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109 // check if the same observer already exist in a list |
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110 if (KErrNotFound != iObservers.Find(&aObserver)) |
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111 { |
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112 LOG("Observer already exists" ); |
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113 PANIC( EObserverAlreadyExists); |
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114 return; |
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115 } |
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116 iObservers.AppendL(&aObserver); |
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117 |
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118 if (KFirst == iObservers.Count()) // first item |
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119 { |
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120 iIdPin.Subscribe(iStatus); |
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121 SetActive(); |
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122 |
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123 } |
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124 } |
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125 |
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126 // --------------------------------------------------------------------------- |
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127 // |
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128 // --------------------------------------------------------------------------- |
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129 // |
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130 void CUsbIdPinObserver::UnsubscribeL(MUsbIdPinObserver& aObserver) |
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131 { |
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132 LOG_FUNC |
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133 |
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134 TInt i(iObservers.Find(&aObserver)); |
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135 if (KErrNotFound == i) |
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136 { |
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137 LOG("Observer not found"); |
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138 PANIC( ECanNotFindIdPinObserver); |
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139 return; |
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140 } |
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141 |
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142 iObservers.Remove(i); |
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143 |
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144 if (0 == iObservers.Count()) // no observers anymore |
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145 { |
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146 // cancel pending request |
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147 Cancel(); |
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148 } |
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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 // --------------------------------------------------------------------------- |
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154 // |
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155 void CUsbIdPinObserver::RunL() |
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156 { |
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157 LOG_FUNC |
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158 |
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159 LOG1( "iStatus = %d" , iStatus.Int()); |
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160 |
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161 // if error occured, tell to Observers |
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162 if (KErrNone != iStatus.Int()) |
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163 { |
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164 for (TInt i(0); i < iObservers.Count(); ++i) |
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165 { |
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166 iObservers[i]->IdPinErrorL(iStatus.Int()); |
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167 } |
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168 return; |
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169 } |
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170 |
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171 // re-issue request first |
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172 iIdPin.Subscribe(iStatus); |
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173 SetActive(); |
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174 |
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175 // then process property change |
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176 TState state(IdPin()); |
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177 |
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178 // report change |
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179 switch (state) |
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180 { |
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181 case EIdPinOn: |
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182 { |
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183 LOG("IdPin ON"); |
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184 |
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185 for (TInt i(0); i < iObservers.Count(); ++i) |
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186 { |
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187 iObservers[i]->IdPinOnL(); |
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188 } |
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189 break; |
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190 } |
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191 |
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192 case EIdPinOff: |
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193 { |
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194 LOG("IdPin OFF"); |
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195 |
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196 for (TInt i(0); i < iObservers.Count(); ++i) |
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197 { |
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198 iObservers[i]->IdPinOffL(); |
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199 } |
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200 break; |
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201 } |
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202 |
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203 default: |
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204 { |
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205 LOG("WrongIdPinState"); |
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206 PANIC( EWrongIdPinState); |
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207 } |
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208 } |
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209 |
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210 } |
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211 |
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212 // --------------------------------------------------------------------------- |
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213 // |
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214 // --------------------------------------------------------------------------- |
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215 // |
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216 void CUsbIdPinObserver::DoCancel() |
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217 { |
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218 iIdPin.Cancel(); |
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219 } |
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220 |
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221 // --------------------------------------------------------------------------- |
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222 // |
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223 // --------------------------------------------------------------------------- |
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224 // |
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225 TInt CUsbIdPinObserver::RunError(TInt aError) |
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226 { |
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227 LOG_FUNC |
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228 |
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229 LOG1( "aError = %d", aError); |
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230 |
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231 // try to continue |
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232 return KErrNone; |
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233 |
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234 } |