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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: Switches personality |
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15 * |
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16 */ |
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17 |
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18 #include <e32base.h> |
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19 #include <usb.h> |
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20 #include <usbpersonalityids.h> |
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21 |
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22 #include "cusbpersonalityswitch.h" |
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23 |
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24 #include "panic.h" |
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25 #include "debug.h" |
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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 // |
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31 CUsbPersonalitySwitch::CUsbPersonalitySwitch( |
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32 MUsbPersonalitySwitchObserver* aObserver) : |
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33 CActive(CActive::EPriorityStandard), iObserver(aObserver), iState(EIdle) |
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34 { |
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35 CActiveScheduler::Add(this); |
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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 // |
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42 CUsbPersonalitySwitch::~CUsbPersonalitySwitch() |
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43 { |
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44 FLOG( _L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::~CUsbPersonalitySwitch" ) ); |
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45 Cancel(); |
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46 iUsbInterface.Close(); |
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47 iSendData.Close(); |
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48 iRcvData.Close(); |
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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 // --------------------------------------------------------------------------- |
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54 // |
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55 void CUsbPersonalitySwitch::ConstructL() |
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56 { |
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57 FLOG( _L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::ConstructL" ) ); |
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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 CUsbPersonalitySwitch* CUsbPersonalitySwitch::NewL( |
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65 MUsbPersonalitySwitchObserver* aObserver) |
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66 { |
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67 FLOG( _L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::NewL" ) ); |
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68 |
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69 CUsbPersonalitySwitch* self = new (ELeave) CUsbPersonalitySwitch( |
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70 aObserver); |
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71 CleanupStack::PushL(self); |
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72 self->ConstructL(); |
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73 CleanupStack::Pop(self); // pop self |
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74 return self; |
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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 TInt CUsbPersonalitySwitch::SwitchPersonalityL(TUint32 aDeviceId, |
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82 TInt aPersonalityToBeSet) |
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83 { |
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84 FTRACE(FPrint(_L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::SwitchPersonality aDeviceId %d, aPersonalityToBeSet %d" ), aDeviceId, aPersonalityToBeSet)) |
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85 |
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86 if (IsActive() || EIdle != iState) |
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87 { |
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88 Cancel(); |
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89 iObserver->UsbPersonalitySwitchStateChangedL( |
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90 MUsbPersonalitySwitchObserver::ERequestCancelled, KErrNone); |
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91 } |
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92 |
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93 // create usb interface for the device id |
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94 TUint32 token(0); // = RFdc.InterfaceToken(); |
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95 TInt err = iUsbInterface.Open(token); |
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96 |
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97 FTRACE(FPrint(_L("[USBOTGWATCHER]\tCUsbPersonalitySwitch::SwitchPersonality UsbInterface Open err = %d" ), err)); |
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98 if (KErrNone != err) |
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99 { |
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100 return err; |
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101 } |
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102 |
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103 iPersonalityToBeSet = aPersonalityToBeSet; |
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104 |
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105 // get list of supported personalities |
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106 iTransfer.iRequestType = KUsbRequestType_DirToHost |
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107 | KUsbRequestType_TypeVendor | KUsbRequestType_DestDevice; |
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108 |
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109 iTransfer.iRequest = KGetAllPersonalitiesReq; |
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110 iTransfer.iValue = 0; |
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111 iTransfer.iIndex = 0; |
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112 iTransfer.iFlags |
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113 = RUsbInterface::TUsbTransferRequestDetails::EShortTransferOk; |
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114 |
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115 Reset(); |
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116 |
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117 iState = EGetAllPersonalities; |
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118 |
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119 FLOG( _L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::SwitchPersonalityL Sending GetAllPersonalities request." ) ); |
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120 iUsbInterface.Ep0Transfer(iTransfer, iSendData, iRcvData, iStatus); |
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121 SetActive(); |
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122 |
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123 iObserver->UsbPersonalitySwitchStateChangedL( |
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124 MUsbPersonalitySwitchObserver::ERequestingAllPersonalities, |
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125 KErrNone); |
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126 |
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127 return KErrNone; |
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128 } |
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129 |
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130 void CUsbPersonalitySwitch::CancelSwitchPersonalityL() |
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131 { |
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132 FLOG(_L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::CancelSwitchPersonalityL")); |
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133 |
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134 if (IsActive()) |
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135 { |
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136 Cancel(); |
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137 iObserver->UsbPersonalitySwitchStateChangedL( |
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138 MUsbPersonalitySwitchObserver::ERequestCancelled, KErrNone); |
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139 } |
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140 } |
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141 |
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142 // --------------------------------------------------------------------------- |
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143 // |
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144 // --------------------------------------------------------------------------- |
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145 // |
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146 void CUsbPersonalitySwitch::RunL() |
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147 { |
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148 |
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149 if (KErrNone != iStatus.Int()) |
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150 { |
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151 FTRACE(FPrint(_L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::RunL iStatus %d" ), iStatus.Int())); |
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152 User::Leave(iStatus.Int()); |
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153 } |
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154 |
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155 switch (iState) |
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156 { |
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157 |
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158 case EGetAllPersonalities: |
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159 { |
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160 FLOG(_L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::RunL GetAllPersonalities completed.")); |
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161 |
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162 TInt numOfPersonalities = iRcvData[KNumOfPersShift]; |
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163 FTRACE(FPrint(_L("[USBOTGWATCHER]\tCUsbPersonalitySwitch::RunL Amount of personalities in peripheral = %d" ), numOfPersonalities)); |
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164 |
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165 // if no personalities then return |
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166 if (0 == numOfPersonalities) |
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167 { |
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168 FLOG(_L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::RunL No personailies found in peripheral.")); |
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169 Reset(); |
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170 iObserver->UsbPersonalitySwitchStateChangedL( |
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171 MUsbPersonalitySwitchObserver::EGetAllPersonalitiesCompleted, |
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172 KErrNotFound); |
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173 return; |
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174 } |
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175 |
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176 // if needed pers already set, then return |
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177 TInt currentPersonality = iRcvData[KCurrPersShift]; |
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178 if (iPersonalityToBeSet == currentPersonality) |
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179 { |
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180 FLOG(_L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::RunL Needed personality already set in peripheral.")); |
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181 Reset(); |
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182 iObserver->UsbPersonalitySwitchStateChangedL( |
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183 MUsbPersonalitySwitchObserver::EGetAllPersonalitiesCompleted, |
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184 KErrInUse); |
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185 return; |
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186 } |
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187 |
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188 // check if device supports needed personality |
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189 TInt count(0); |
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190 while (count < numOfPersonalities && iPersonalityToBeSet |
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191 != iRcvData[KFirstPersonalityIdShift |
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192 + KLenghtOfPersonalityData * count]) |
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193 { |
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194 ++count; |
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195 } |
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196 |
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197 if (count == numOfPersonalities) // not found == not supported |
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198 { |
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199 FLOG(_L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::RunL Peripheral does not support needed personality.")); |
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200 Reset(); |
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201 iObserver->UsbPersonalitySwitchStateChangedL( |
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202 MUsbPersonalitySwitchObserver::EGetAllPersonalitiesCompleted, |
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203 KErrNotFound); |
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204 return; |
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205 } |
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206 |
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207 iObserver->UsbPersonalitySwitchStateChangedL( |
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208 MUsbPersonalitySwitchObserver::EGetAllPersonalitiesCompleted, |
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209 KErrNone); |
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210 |
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211 // set personality |
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212 iTransfer.iRequestType = KUsbRequestType_DirToDev |
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213 | KUsbRequestType_TypeVendor | KUsbRequestType_DestDevice; |
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214 |
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215 iTransfer.iRequest = KSetPersonalityReq; |
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216 iTransfer.iValue = iPersonalityToBeSet; |
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217 iTransfer.iIndex = 0; |
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218 iTransfer.iFlags |
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219 = RUsbInterface::TUsbTransferRequestDetails::EShortTransferOk; |
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220 |
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221 iSendData.Close(); |
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222 iRcvData.Close(); |
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223 |
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224 iState = ESetPersonality; |
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225 |
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226 FLOG( _L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::RunL Sending SetPersonality request." ) ); |
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227 iUsbInterface.Ep0Transfer(iTransfer, iSendData, iRcvData, iStatus); |
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228 SetActive(); |
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229 iObserver->UsbPersonalitySwitchStateChangedL( |
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230 MUsbPersonalitySwitchObserver::ERequestingSetPersonality, |
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231 KErrNone); |
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232 |
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233 break; |
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234 } |
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235 case ESetPersonality: |
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236 { |
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237 FLOG(_L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::RunL SetPersonality completed.")); |
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238 Reset(); |
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239 iObserver->UsbPersonalitySwitchStateChangedL( |
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240 MUsbPersonalitySwitchObserver::ESetPersonalityCompleted, |
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241 KErrNone); |
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242 |
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243 break; |
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244 } |
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245 /* case EGetAllPersResult: |
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246 { |
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247 FLOG( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::RunL GetAllPersResult completed."); |
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248 |
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249 break; |
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250 } |
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251 case EGetSetPersResult: |
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252 { |
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253 FLOG( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::RunL GetSetPersResult completed."); |
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254 |
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255 break; |
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256 } */ |
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257 |
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258 case EIdle: // do not break |
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259 default: |
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260 { |
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261 Panic(EUnexpectedUsbSwitchPersonalityState); |
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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 // --------------------------------------------------------------------------- |
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268 // |
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269 // --------------------------------------------------------------------------- |
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270 // |
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271 TInt CUsbPersonalitySwitch::RunError(TInt aError) |
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272 { |
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273 FTRACE(FPrint(_L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::RunError aError %d" ), aError )); |
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274 Reset(); |
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275 TRAP_IGNORE (iObserver->UsbPersonalitySwitchStateChangedL( |
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276 MUsbPersonalitySwitchObserver::ERequestFailed, aError) ); |
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277 return KErrNone; |
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278 } |
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279 |
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280 // --------------------------------------------------------------------------- |
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281 // |
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282 // --------------------------------------------------------------------------- |
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283 // |
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284 void CUsbPersonalitySwitch::DoCancel() |
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285 { |
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286 FLOG( _L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::DoCancel" ) ) |
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287 |
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288 iUsbInterface.CancelEP0Transfer(); |
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289 Reset(); |
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290 } |
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291 |
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292 void CUsbPersonalitySwitch::Reset() |
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293 { |
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294 FLOG( _L( "[USBOTGWATCHER]\tCUsbPersonalitySwitch::Reset" ) ) |
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295 |
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296 iState = EIdle; |
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297 iSendData.Close(); |
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298 iRcvData.Close(); |
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299 } |