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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 "cusbotgstateobserver.h" |
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19 |
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20 #include "definitions.h" |
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21 #include "debug.h" |
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22 #include "panic.h" |
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23 |
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24 // --------------------------------------------------------------------------- |
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25 // |
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26 // --------------------------------------------------------------------------- |
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27 // |
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28 CUsbOtgStateObserver::CUsbOtgStateObserver() : |
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29 CActive(EPriorityStandard) |
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30 { |
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31 CActiveScheduler::Add(this); |
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32 } |
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33 |
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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 void CUsbOtgStateObserver::ConstructL() |
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39 { |
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40 LOG_FUNC |
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41 |
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42 LEAVEIFERROR(iOtgState.Attach(KUidUsbManCategory, |
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43 KUsbOtgStateProperty)); |
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44 |
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45 } |
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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 CUsbOtgStateObserver* CUsbOtgStateObserver::NewL() |
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52 { |
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53 LOG_FUNC |
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54 |
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55 CUsbOtgStateObserver* self = new (ELeave) CUsbOtgStateObserver(); |
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56 CleanupStack::PushL(self); |
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57 self->ConstructL(); |
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58 CleanupStack::Pop(self); |
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59 return self; |
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60 } |
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61 |
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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 CUsbOtgStateObserver::~CUsbOtgStateObserver() |
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67 { |
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68 LOG_FUNC |
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69 |
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70 Cancel(); |
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71 |
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72 iOtgState.Close(); |
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73 |
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74 iObservers.Close(); |
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75 |
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76 } |
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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 TUsbOtgState CUsbOtgStateObserver::OtgState() |
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83 { |
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84 TInt val(0); |
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85 |
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86 TInt err = iOtgState.Get(val); |
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87 |
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88 if (KErrNone != err) |
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89 { |
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90 LOG("CanNotGetOtgStateProperty" ); |
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91 PANIC( ECanNotGetOtgStateProperty); |
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92 } |
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93 |
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94 return (TUsbOtgState) val; |
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95 |
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96 } |
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97 |
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98 // --------------------------------------------------------------------------- |
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99 // |
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100 // --------------------------------------------------------------------------- |
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101 // |
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102 void CUsbOtgStateObserver::SubscribeL(MUsbOtgStateObserver& aObserver) |
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103 { |
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104 LOG_FUNC |
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105 |
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106 // check if the same observer already exist in a list |
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107 if (KErrNotFound != iObservers.Find(&aObserver)) |
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108 { |
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109 LOG( "Observer already exists" ); |
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110 PANIC( EObserverAlreadyExists); |
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111 return; |
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112 } |
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113 iObservers.AppendL(&aObserver); |
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114 |
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115 if (KFirst == iObservers.Count()) // first item |
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116 { |
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117 iOtgState.Subscribe(iStatus); |
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118 SetActive(); |
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119 |
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120 } |
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121 } |
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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 void CUsbOtgStateObserver::UnsubscribeL(MUsbOtgStateObserver& aObserver) |
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128 { |
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129 LOG_FUNC |
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130 |
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131 TInt i(iObservers.Find(&aObserver)); |
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132 if (KErrNotFound == i) |
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133 { |
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134 LOG("Observer not found"); |
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135 PANIC( ECanNotFindOtgStateObserver); |
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136 return; |
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137 } |
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138 |
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139 iObservers.Remove(i); |
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140 |
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141 if (0 == iObservers.Count()) // no observers anymore |
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142 { |
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143 // cancel pending request |
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144 Cancel(); |
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145 } |
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146 } |
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147 |
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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 void CUsbOtgStateObserver::RunL() |
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153 { |
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154 LOG_FUNC |
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155 |
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156 LOG1( "iStatus = %d" , iStatus.Int()); |
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157 |
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158 // if error occured, tell to Observers |
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159 if (KErrNone != iStatus.Int()) |
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160 { |
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161 for (TInt i(0); i < iObservers.Count(); ++i) |
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162 { |
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163 iObservers[i]->OtgStateErrorL(iStatus.Int()); |
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164 } |
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165 return; |
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166 } |
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167 |
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168 // re-issue request first |
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169 iOtgState.Subscribe(iStatus); |
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170 SetActive(); |
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171 |
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172 // then process property change |
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173 TUsbOtgState state(OtgState()); |
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174 |
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175 switch (state) |
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176 { |
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177 case EUsbOtgStateReset: |
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178 { |
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179 LOG("OTGState == RESET" ); |
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180 break; |
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181 } |
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182 case EUsbOtgStateAIdle: |
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183 { |
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184 LOG("OTGState == AIdle" ); |
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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]->AIdleL(); |
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188 } |
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189 break; |
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190 } |
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191 case EUsbOtgStateAHost: |
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192 { |
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193 LOG( "OTGState == AHost"); |
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194 for (TInt i(0); i < iObservers.Count(); ++i) |
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195 { |
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196 iObservers[i]->AHostL(); |
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197 } |
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198 break; |
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199 } |
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200 case EUsbOtgStateAPeripheral: |
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201 { |
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202 LOG("OTGState == APeripheral" ); |
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203 for (TInt i(0); i < iObservers.Count(); ++i) |
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204 { |
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205 iObservers[i]->APeripheralL(); |
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206 } |
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207 break; |
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208 } |
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209 case EUsbOtgStateAVbusError: |
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210 { |
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211 LOG("OTGState == AVBusError" ); |
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212 for (TInt i(0); i < iObservers.Count(); ++i) |
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213 { |
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214 iObservers[i]->AVBusErrorL(); |
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215 } |
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216 break; |
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217 } |
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218 case EUsbOtgStateBIdle: |
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219 { |
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220 LOG( "OTGState == BIdle" ); |
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221 for (TInt i(0); i < iObservers.Count(); ++i) |
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222 { |
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223 iObservers[i]->BIdleL(); |
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224 } |
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225 break; |
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226 } |
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227 case EUsbOtgStateBPeripheral: |
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228 { |
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229 LOG("OTGState == BPeripheral" ); |
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230 for (TInt i(0); i < iObservers.Count(); ++i) |
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231 { |
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232 iObservers[i]->BPeripheralL(); |
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233 } |
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234 break; |
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235 } |
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236 case EUsbOtgStateBHost: |
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237 { |
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238 LOG("OTGState == BHost" ); |
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239 for (TInt i(0); i < iObservers.Count(); ++i) |
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240 { |
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241 iObservers[i]->BHostL(); |
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242 } |
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243 break; |
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244 } |
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245 default: |
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246 { |
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247 LOG("WrongOtgState" ); |
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248 PANIC( EWrongOtgState); |
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249 } |
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250 } |
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251 |
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252 } |
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253 |
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254 // --------------------------------------------------------------------------- |
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255 // |
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256 // --------------------------------------------------------------------------- |
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257 // |
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258 void CUsbOtgStateObserver::DoCancel() |
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259 { |
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260 iOtgState.Cancel(); |
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261 } |
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262 |
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263 // --------------------------------------------------------------------------- |
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264 // |
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265 // --------------------------------------------------------------------------- |
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266 // |
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267 TInt CUsbOtgStateObserver::RunError(TInt aError) |
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268 { |
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269 LOG_FUNC |
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270 |
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271 LOG1( "aError = %d" , aError); |
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272 |
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273 // try to continue |
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274 return KErrNone; |
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275 |
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276 } |
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277 |