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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 #include <usbuinotif.h> |
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18 #include <usbhosterrors.h> |
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19 |
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20 #include "cusbotgwatcher.h" |
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21 #include "cusbstatehostainitiate.h" |
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22 |
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23 #ifndef STIF |
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24 #include "cusbtimer.h" |
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25 #include "cusbnotifmanager.h" |
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26 #else |
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27 #include "mockcusbnotifmanager.h" |
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28 #include "mockcusbtimer.h" |
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29 #endif |
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30 |
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31 #include "definitions.h" |
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32 #include "errors.h" |
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33 |
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34 #include "debug.h" |
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35 #include "panic.h" |
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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 // |
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41 CUsbStateHostAInitiate::CUsbStateHostAInitiate(CUsbOtgWatcher& aWatcher) : |
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42 CUsbStateHostABase(aWatcher), iDeviceAttached(EFalse) |
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43 { |
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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 void CUsbStateHostAInitiate::ConstructL() |
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51 { |
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52 LOG_FUNC |
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53 |
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54 CUsbStateHostABase::ConstructL(); |
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55 |
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56 iAttachmentTimer = CUsbTimer::NewL(*this, EDeviceAttachmentTimer); |
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57 |
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58 } |
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59 |
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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 CUsbStateHostAInitiate* CUsbStateHostAInitiate::NewL(CUsbOtgWatcher& aWatcher) |
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65 { |
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66 LOG_FUNC |
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67 |
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68 CUsbStateHostAInitiate* self = new (ELeave) CUsbStateHostAInitiate( |
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69 aWatcher); |
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70 CleanupStack::PushL(self); |
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71 self->ConstructL(); |
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72 CleanupStack::Pop(self); |
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73 return self; |
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74 } |
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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 CUsbStateHostAInitiate::~CUsbStateHostAInitiate() |
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81 { |
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82 LOG_FUNC |
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83 |
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84 delete iAttachmentTimer; |
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85 } |
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86 |
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87 // --------------------------------------------------------------------------- |
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88 // |
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89 // --------------------------------------------------------------------------- |
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90 // |
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91 TUsbStateIds CUsbStateHostAInitiate::Id() |
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92 { |
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93 return EUsbStateHostAInitiate; |
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94 } |
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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 void CUsbStateHostAInitiate::JustBeforeLeavingThisStateL() |
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101 { |
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102 LOG_FUNC |
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103 |
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104 iAttachmentTimer->Cancel(); |
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105 |
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106 // do general things |
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107 CUsbStateHostABase::JustBeforeLeavingThisStateL(); |
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108 } |
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109 |
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110 // --------------------------------------------------------------------------- |
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111 // |
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112 // --------------------------------------------------------------------------- |
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113 // |
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114 void CUsbStateHostAInitiate::JustAdvancedToThisStateL() |
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115 { |
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116 LOG_FUNC |
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117 |
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118 // do general things |
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119 CUsbStateHostABase::JustAdvancedToThisStateL(); |
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120 |
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121 // clear this attribute, and wait for attachment |
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122 // one attchment has to correspond to only one detachment |
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123 iDeviceAttached = EFalse; // to catch not corresponding Detachment, if any |
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124 |
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125 TInt err = iWatcher.Usb().EnableFunctionDriverLoading(); |
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126 |
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127 if (KErrNone != err) |
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128 { |
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129 LOG1( "EnableFunctionDriverLoading err = %d", err ); |
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130 iWatcher.HandleHostProblemL(EUsbWatcherCanNotEnableDriverLoading, |
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131 EUsbStateHostHandleDropping); |
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132 return; |
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133 } |
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134 |
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135 // do BusRequest, if down |
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136 |
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137 if (CUsbVBusObserver::EVBusUp != iWatcher.VBusObserver()->VBus()) |
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138 { |
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139 const TUint maxTrial = 3; |
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140 TInt busReqErr(KErrGeneral); |
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141 TUint count(0); |
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142 |
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143 while (count < maxTrial && KErrNone != busReqErr) |
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144 { |
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145 busReqErr = iWatcher.Usb().BusRequest(); |
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146 LOG1( "BusRequest() busReqErr = %d" , busReqErr); |
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147 |
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148 if (KErrNone != busReqErr) |
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149 { |
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150 err = iWatcher.Usb().BusClearError(); |
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151 if (KErrNone != err) |
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152 { |
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153 iWatcher.HandleHostProblemL( |
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154 EUsbWatcherCanNotClearBusError, |
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155 EUsbStateHostHandleDropping); |
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156 return; |
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157 } |
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158 } |
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159 ++count; |
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160 } |
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161 if (KErrNone != busReqErr) |
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162 { |
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163 iWatcher.HandleHostProblemL(EUsbWatcherCanNotRaiseVBus, |
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164 EUsbStateHostHandleDropping); |
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165 return; |
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166 } |
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167 } |
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168 |
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169 // start timer, waiting for device attachment |
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170 iAttachmentTimer->After(KTimeToWaitForDeviceAttachment); |
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171 |
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172 } |
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173 |
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174 // From TimerObserver |
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175 // --------------------------------------------------------------------------- |
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176 // |
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177 // --------------------------------------------------------------------------- |
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178 // |
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179 void CUsbStateHostAInitiate::TimerElapsedL(TUsbTimerId aTimerId) |
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180 { |
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181 LOG_FUNC |
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182 |
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183 switch (aTimerId) |
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184 { |
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185 case EDeviceAttachmentTimer: |
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186 { |
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187 LOG("AttachmentTimer" ); |
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188 HandleL(EUsbWatcherErrDandlingCable, EUsbStateHostHandleDropping); |
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189 break; |
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190 } |
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191 default: |
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192 { |
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193 LOG1( "Unknown timer id = %d", aTimerId ); |
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194 PANIC( EWrongTimerId); |
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195 } |
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196 } |
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197 } |
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198 |
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199 // From VBus observer |
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200 // --------------------------------------------------------------------------- |
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201 // |
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202 // --------------------------------------------------------------------------- |
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203 // |
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204 void CUsbStateHostAInitiate::VBusUpL() |
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205 { |
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206 LOG_FUNC |
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207 } |
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208 |
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209 // From Host Event notification observer |
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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 void CUsbStateHostAInitiate::DeviceAttachedL(TDeviceEventInformation aTdi) |
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215 { |
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216 LOG_FUNC |
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217 |
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218 iDeviceAttached = ETrue; |
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219 iAttachmentTimer->Cancel(); |
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220 |
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221 // check if an OTG device connected |
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222 TOtgDescriptor otgDescriptor; |
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223 |
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224 // ignore all the errors, assume we connected to not otg |
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225 TInt err = iWatcher.Usb().GetOtgDescriptor(aTdi.iDeviceId, otgDescriptor); |
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226 LOG1("GetOtgDescriptor() err = %d", err ); |
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227 |
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228 TBool hnpSupported(otgDescriptor.iAttributes & EUsbOtgHNPSupported); |
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229 TBool srpSupported(otgDescriptor.iAttributes & EUsbOtgSRPSupported); |
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230 |
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231 // OTG device supports both hnp and srp |
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232 if (hnpSupported && srpSupported) |
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233 { |
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234 |
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235 HandleL(EUsbWatcherConnectedToOTG, EUsbStateHostHandleDropping); |
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236 return; |
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237 } |
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238 |
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239 switch (aTdi.iError) |
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240 // error in attachement |
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241 { |
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242 case KErrNone: |
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243 { |
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244 break; |
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245 } |
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246 case KErrUsbDeviceDetachedDuringDriverLoading: |
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247 { |
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248 //do not show error, due to device is already detached |
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249 // Device Detachment will not come after this (it was not attached yet) |
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250 // therefore emulate detachment |
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251 // content of aTdi is not important, due to detachment anyway |
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252 DeviceDetachedL(aTdi); |
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253 break; |
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254 } |
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255 case KErrBadPower: |
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256 { |
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257 LOG( "TooMuchPower" ); |
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258 HandleL(EUsbWatcherErrDeviceRequiresTooMuchPowerOnEnumeration, |
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259 EUsbStateHostDelayNotAttachedHandle); |
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260 break; |
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261 } |
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262 default: |
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263 { |
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264 LOG1("AttachmentError aTdi.iError = %d" , aTdi.iError ); |
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265 HandleL(EUsbWatcherErrUnsupportedDevice, |
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266 EUsbStateHostHandleDropping); |
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267 } |
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268 } |
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269 } |
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270 |
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271 // --------------------------------------------------------------------------- |
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272 // |
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273 // --------------------------------------------------------------------------- |
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274 // |
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275 void CUsbStateHostAInitiate::DeviceDetachedL(TDeviceEventInformation aTdi) |
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276 { |
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277 LOG_FUNC |
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278 |
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279 // iDeviceAttached is used here to avoid one more state creation (init->attached->detached) |
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280 // due to purpose of this state only to wait for drivers load |
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281 if (!iDeviceAttached) |
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282 { |
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283 PANIC(EDeviceDetachedNotExpected) |
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284 } |
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285 |
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286 // go out, and go in to the same state |
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287 ChangeHostStateL( EUsbStateHostAInitiate); |
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288 } |
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289 |
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290 // --------------------------------------------------------------------------- |
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291 // |
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292 // --------------------------------------------------------------------------- |
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293 // |
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294 void CUsbStateHostAInitiate::DriverLoadSuccessL(TDeviceEventInformation) |
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295 { |
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296 LOG_FUNC |
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297 ChangeHostStateL( EUsbStateHostAHost); |
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298 } |
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299 |
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300 // --------------------------------------------------------------------------- |
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301 // |
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302 // --------------------------------------------------------------------------- |
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303 // |
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304 void CUsbStateHostAInitiate::DriverLoadPartialSuccessL( |
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305 TDeviceEventInformation aDei) |
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306 { |
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307 LOG_FUNC |
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308 |
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309 switch (aDei.iError) |
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310 { |
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311 case KErrUsbDeviceDetachedDuringDriverLoading: |
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312 { |
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313 //do not show warning, due to device is already detached |
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314 break; |
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315 } |
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316 default: |
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317 { |
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318 iWatcher.NotifManager()->ShowNotifierL(KUsbUiNotifOtgWarning, |
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319 EUsbOtgPartiallySupportedDevice, NULL); |
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320 } |
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321 } |
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322 ChangeHostStateL( EUsbStateHostAHost); |
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323 |
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324 } |
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325 |
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326 // --------------------------------------------------------------------------- |
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327 // |
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328 // --------------------------------------------------------------------------- |
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329 // |
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330 void CUsbStateHostAInitiate::DriverLoadFailureL(TDeviceEventInformation aDei) |
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331 { |
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332 LOG_FUNC |
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333 |
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334 HandleL(EUsbWatcherErrDriversNotFound, EUsbStateHostDelayAttachedHandle); |
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335 } |