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1 // Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // e32/drivers/usbcc/descriptors.cpp |
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15 // Platform independent layer (PIL) of the USB Device controller driver: |
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16 // USB descriptor handling and management. |
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17 // |
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18 // |
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19 |
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20 /** |
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21 @file descriptors.cpp |
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22 @internalTechnology |
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23 */ |
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24 |
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25 #include <kernel/kern_priv.h> |
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26 #include <drivers/usbc.h> |
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27 |
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28 |
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29 // Debug Support |
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30 static const char KUsbPanicCat[] = "USB PIL"; |
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31 |
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32 |
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33 // --- TUsbcDescriptorBase |
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34 |
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35 TUsbcDescriptorBase::TUsbcDescriptorBase() |
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36 : |
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37 #ifdef USB_SUPPORTS_SET_DESCRIPTOR_REQUEST |
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38 iIndex(0), |
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39 #endif |
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40 iBufPtr(NULL, 0) |
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41 { |
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42 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorBase::TUsbcDescriptorBase()")); |
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43 } |
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44 |
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45 |
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46 TUsbcDescriptorBase::~TUsbcDescriptorBase() |
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47 { |
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48 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorBase::~TUsbcDescriptorBase()")); |
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49 } |
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50 |
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51 |
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52 void TUsbcDescriptorBase::SetByte(TInt aPosition, TUint8 aValue) |
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53 { |
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54 iBufPtr[aPosition] = aValue; |
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55 } |
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56 |
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57 |
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58 void TUsbcDescriptorBase::SetWord(TInt aPosition, TUint16 aValue) |
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59 { |
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60 *reinterpret_cast<TUint16*>(&iBufPtr[aPosition]) = SWAP_BYTES_16(aValue); |
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61 } |
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62 |
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63 |
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64 TUint8 TUsbcDescriptorBase::Byte(TInt aPosition) const |
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65 { |
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66 return iBufPtr[aPosition]; |
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67 } |
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68 |
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69 |
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70 TUint16 TUsbcDescriptorBase::Word(TInt aPosition) const |
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71 { |
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72 return SWAP_BYTES_16(*reinterpret_cast<const TUint16*>(&iBufPtr[aPosition])); |
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73 } |
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74 |
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75 |
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76 void TUsbcDescriptorBase::GetDescriptorData(TDes8& aBuffer) const |
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77 { |
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78 aBuffer = iBufPtr; |
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79 } |
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80 |
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81 |
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82 TInt TUsbcDescriptorBase::GetDescriptorData(TUint8* aBuffer) const |
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83 { |
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84 memcpy(aBuffer, iBufPtr.Ptr(), Size()); |
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85 return Size(); |
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86 } |
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87 |
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88 |
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89 TInt TUsbcDescriptorBase::GetDescriptorData(TUint8* aBuffer, TUint aMaxSize) const |
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90 { |
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91 if (aMaxSize < Size()) |
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92 { |
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93 // No use to copy only half a descriptor |
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94 return 0; |
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95 } |
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96 return GetDescriptorData(aBuffer); |
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97 } |
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98 |
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99 |
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100 const TDes8& TUsbcDescriptorBase::DescriptorData() const |
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101 { |
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102 return iBufPtr; |
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103 } |
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104 |
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105 |
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106 TDes8& TUsbcDescriptorBase::DescriptorData() |
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107 { |
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108 return iBufPtr; |
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109 } |
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110 |
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111 |
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112 TUint TUsbcDescriptorBase::Size() const |
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113 { |
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114 return iBufPtr.Size(); |
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115 } |
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116 |
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117 |
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118 TUint8 TUsbcDescriptorBase::Type() const |
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119 { |
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120 return iBufPtr[1]; |
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121 } |
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122 |
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123 |
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124 void TUsbcDescriptorBase::UpdateFs() |
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125 { |
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126 // virtual function can be overridden in derived classes. |
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127 return; |
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128 } |
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129 |
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130 |
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131 void TUsbcDescriptorBase::UpdateHs() |
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132 { |
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133 // virtual function can be overridden in derived classes. |
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134 return; |
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135 } |
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136 |
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137 |
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138 void TUsbcDescriptorBase::SetBufferPointer(const TDesC8& aDes) |
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139 { |
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140 iBufPtr.Set(const_cast<TUint8*>(aDes.Ptr()), aDes.Size(), aDes.Size()); |
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141 } |
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142 |
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143 |
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144 // --- TUsbcDeviceDescriptor |
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145 |
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146 TUsbcDeviceDescriptor::TUsbcDeviceDescriptor() |
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147 : iBuf() |
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148 { |
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149 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDeviceDescriptor::TUsbcDeviceDescriptor()")); |
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150 } |
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151 |
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152 |
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153 TUsbcDeviceDescriptor* TUsbcDeviceDescriptor::New(TUint8 aDeviceClass, TUint8 aDeviceSubClass, |
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154 TUint8 aDeviceProtocol, TUint8 aMaxPacketSize0, |
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155 TUint16 aVendorId, TUint16 aProductId, |
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156 TUint16 aDeviceRelease, TUint8 aNumConfigurations) |
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157 { |
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158 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDeviceDescriptor::New()")); |
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159 TUsbcDeviceDescriptor* self = new TUsbcDeviceDescriptor(); |
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160 if (self) |
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161 { |
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162 if (self->Construct(aDeviceClass, aDeviceSubClass, aDeviceProtocol, aMaxPacketSize0, aVendorId, |
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163 aProductId, aDeviceRelease, aNumConfigurations) != KErrNone) |
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164 { |
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165 delete self; |
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166 return NULL; |
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167 } |
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168 } |
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169 return self; |
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170 } |
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171 |
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172 |
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173 TInt TUsbcDeviceDescriptor::Construct(TUint8 aDeviceClass, TUint8 aDeviceSubClass, TUint8 aDeviceProtocol, |
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174 TUint8 aMaxPacketSize0, TUint16 aVendorId, TUint16 aProductId, |
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175 TUint16 aDeviceRelease, TUint8 aNumConfigurations) |
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176 { |
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177 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDeviceDescriptor::Construct()")); |
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178 iBuf.SetMax(); |
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179 SetBufferPointer(iBuf); |
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180 iBuf[0] = iBuf.Size(); // bLength |
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181 iBuf[1] = KUsbDescType_Device; // bDescriptorType |
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182 SetWord(2, KUsbcUsbVersion); // bcdUSB |
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183 iBuf[4] = aDeviceClass; // bDeviceClass |
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184 iBuf[5] = aDeviceSubClass; // bDeviceSubClass |
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185 iBuf[6] = aDeviceProtocol; // bDeviceProtocol |
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186 iBuf[7] = aMaxPacketSize0; // bMaxPacketSize0 |
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187 SetWord(8, aVendorId); // idVendor |
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188 SetWord(10, aProductId); // idProduct |
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189 SetWord(12, aDeviceRelease); // bcdDevice |
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190 iBuf[14] = 0; // iManufacturer |
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191 iBuf[15] = 0; // iProduct |
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192 iBuf[16] = 0; // iSerialNumber |
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193 iBuf[17] = aNumConfigurations; // bNumConfigurations |
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194 iEp0Size_Fs = aMaxPacketSize0; |
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195 return KErrNone; |
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196 } |
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197 |
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198 |
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199 void TUsbcDeviceDescriptor::UpdateFs() |
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200 { |
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201 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDeviceDescriptor::UpdateFs()")); |
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202 SetByte(7, iEp0Size_Fs); // bMaxPacketSize0 |
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203 } |
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204 |
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205 |
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206 void TUsbcDeviceDescriptor::UpdateHs() |
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207 { |
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208 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDeviceDescriptor::UpdateHs()")); |
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209 SetByte(7, 64); // bMaxPacketSize0 |
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210 } |
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211 |
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212 |
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213 // --- TUsbcDeviceQualifierDescriptor |
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214 |
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215 TUsbcDeviceQualifierDescriptor::TUsbcDeviceQualifierDescriptor() |
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216 : iBuf() |
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217 { |
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218 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDeviceDescriptor::TUsbcDeviceQualifierDescriptor()")); |
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219 } |
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220 |
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221 |
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222 TUsbcDeviceQualifierDescriptor* TUsbcDeviceQualifierDescriptor::New(TUint8 aDeviceClass, |
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223 TUint8 aDeviceSubClass, |
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224 TUint8 aDeviceProtocol, |
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225 TUint8 aMaxPacketSize0, |
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226 TUint8 aNumConfigurations, |
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227 TUint8 aReserved) |
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228 { |
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229 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDeviceQualifierDescriptor::New()")); |
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230 TUsbcDeviceQualifierDescriptor* self = new TUsbcDeviceQualifierDescriptor(); |
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231 if (self) |
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232 { |
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233 if (self->Construct(aDeviceClass, aDeviceSubClass, aDeviceProtocol, aMaxPacketSize0, |
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234 aNumConfigurations, aReserved) != KErrNone) |
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235 { |
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236 delete self; |
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237 return NULL; |
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238 } |
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239 } |
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240 return self; |
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241 } |
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242 |
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243 |
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244 TInt TUsbcDeviceQualifierDescriptor::Construct(TUint8 aDeviceClass, TUint8 aDeviceSubClass, |
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245 TUint8 aDeviceProtocol, TUint8 aMaxPacketSize0, |
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246 TUint8 aNumConfigurations, TUint8 aReserved) |
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247 { |
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248 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDeviceQualifierDescriptor::Construct()")); |
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249 iBuf.SetMax(); |
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250 SetBufferPointer(iBuf); |
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251 iBuf[0] = iBuf.Size(); // bLength |
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252 iBuf[1] = KUsbDescType_DeviceQualifier; // bDescriptorType |
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253 SetWord(2, KUsbcUsbVersion); // bcdUSB |
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254 iBuf[4] = aDeviceClass; // bDeviceClass |
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255 iBuf[5] = aDeviceSubClass; // bDeviceSubClass |
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256 iBuf[6] = aDeviceProtocol; // bDeviceProtocol |
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257 iBuf[7] = aMaxPacketSize0; // bMaxPacketSize0 |
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258 iBuf[8] = aNumConfigurations; // bNumConfigurations |
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259 if (aReserved) aReserved = 0; |
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260 iBuf[9] = aReserved; // Reserved for future use, must be zero |
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261 iEp0Size_Fs = aMaxPacketSize0; |
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262 return KErrNone; |
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263 } |
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264 |
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265 |
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266 void TUsbcDeviceQualifierDescriptor::UpdateFs() |
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267 { |
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268 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDeviceQualifierDescriptor::UpdateFs()")); |
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269 // Here we do exactly the opposite of what's done in the Device descriptor (as this one's |
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270 // documenting the 'other than the current speed'). |
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271 SetByte(7, 64); // bMaxPacketSize0 |
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272 } |
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273 |
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274 |
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275 void TUsbcDeviceQualifierDescriptor::UpdateHs() |
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276 { |
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277 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDeviceQualifierDescriptor::UpdateHs()")); |
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278 // Here we do exactly the opposite of what's done in the Device descriptor (as this one's |
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279 // documenting the 'other than the current speed'). |
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280 SetByte(7, iEp0Size_Fs); // bMaxPacketSize0 |
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281 } |
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282 |
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283 |
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284 // --- TUsbcConfigDescriptor |
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285 |
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286 TUsbcConfigDescriptor::TUsbcConfigDescriptor() |
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287 : iBuf() |
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288 { |
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289 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcConfigDescriptor::TUsbcConfigDescriptor()")); |
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290 } |
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291 |
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292 |
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293 TUsbcConfigDescriptor* TUsbcConfigDescriptor::New(TUint8 aConfigurationValue, TBool aSelfPowered, |
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294 TBool aRemoteWakeup, TUint16 aMaxPower) |
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295 { |
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296 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcConfigDescriptor::New()")); |
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297 TUsbcConfigDescriptor* self = new TUsbcConfigDescriptor(); |
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298 if (self) |
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299 { |
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300 if (self->Construct(aConfigurationValue, aSelfPowered, aRemoteWakeup, aMaxPower) != KErrNone) |
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301 { |
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302 delete self; |
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303 return NULL; |
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304 } |
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305 } |
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306 return self; |
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307 } |
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308 |
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309 |
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310 TInt TUsbcConfigDescriptor::Construct(TUint8 aConfigurationValue, TBool aSelfPowered, |
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311 TBool aRemoteWakeup, TUint16 aMaxPower) |
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312 { |
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313 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcConfigDescriptor::Construct()")); |
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314 iBuf.SetMax(); |
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315 SetBufferPointer(iBuf); |
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316 iBuf[0] = iBuf.Size(); // bLength |
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317 iBuf[1] = KUsbDescType_Config; // bDescriptorType |
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318 SetWord(2, KUsbDescSize_Config); // wTotalLength |
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319 iBuf[4] = 0; // bNumInterfaces |
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320 iBuf[5] = aConfigurationValue; // bConfigurationValue |
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321 iBuf[6] = 0; // iConfiguration |
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322 iBuf[7] = 0x80 | |
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323 (aSelfPowered ? KUsbDevAttr_SelfPowered : 0) | |
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324 (aRemoteWakeup ? KUsbDevAttr_RemoteWakeup : 0); // bmAttributes (bit 7 always 1) |
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325 if (aMaxPower > 510) |
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326 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Invalid value for bMaxPower: %d", aMaxPower)); |
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327 iBuf[8] = aMaxPower / 2; // bMaxPower (2mA units!) |
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328 return KErrNone; |
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329 } |
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330 |
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331 |
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332 // --- TUsbcInterfaceDescriptor |
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333 |
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334 TUsbcInterfaceDescriptor::TUsbcInterfaceDescriptor() |
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335 : iBuf() |
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336 { |
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337 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcInterfaceDescriptor::TUsbcInterfaceDescriptor()")); |
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338 } |
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339 |
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340 |
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341 TUsbcInterfaceDescriptor* TUsbcInterfaceDescriptor::New(TUint8 aInterfaceNumber, TUint8 aAlternateSetting, |
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342 TInt aNumEndpoints, const TUsbcClassInfo& aClassInfo) |
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343 { |
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344 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcInterfaceDescriptor::New()")); |
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345 TUsbcInterfaceDescriptor* self = new TUsbcInterfaceDescriptor(); |
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346 if (self) |
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347 { |
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348 if (self->Construct(aInterfaceNumber, aAlternateSetting, aNumEndpoints, aClassInfo) != KErrNone) |
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349 { |
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350 delete self; |
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351 return NULL; |
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352 } |
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353 } |
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354 return self; |
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355 } |
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356 |
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357 |
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358 TInt TUsbcInterfaceDescriptor::Construct(TUint8 aInterfaceNumber, TUint8 aAlternateSetting, |
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359 TInt aNumEndpoints, const TUsbcClassInfo& aClassInfo) |
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360 { |
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361 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcInterfaceDescriptor::Construct()")); |
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362 iBuf.SetMax(); |
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363 SetBufferPointer(iBuf); |
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364 iBuf[0] = iBuf.Size(); // bLength |
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365 iBuf[1] = KUsbDescType_Interface; // bDescriptorType |
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366 iBuf[2] = aInterfaceNumber; // bInterfaceNumber |
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367 iBuf[3] = aAlternateSetting; // bAlternateSetting |
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368 iBuf[4] = aNumEndpoints; // bNumEndpoints |
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369 iBuf[5] = aClassInfo.iClassNum; // bInterfaceClass |
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370 iBuf[6] = aClassInfo.iSubClassNum; // bInterfaceSubClass |
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371 iBuf[7] = aClassInfo.iProtocolNum; // bInterfaceProtocol |
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372 iBuf[8] = 0; // iInterface |
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373 return KErrNone; |
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374 } |
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375 |
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376 |
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377 // --- TUsbcEndpointDescriptorBase |
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378 |
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379 TUsbcEndpointDescriptorBase::TUsbcEndpointDescriptorBase() |
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380 { |
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381 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcEndpointDescriptorBase::TUsbcEndpointDescriptorBase()")); |
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382 } |
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383 |
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384 |
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385 TInt TUsbcEndpointDescriptorBase::Construct(const TUsbcEndpointInfo& aEpInfo) |
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386 { |
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387 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcEndpointDescriptorBase::Construct()")); |
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388 // Adjust FS/HS endpoint sizes |
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389 if (aEpInfo.AdjustEpSizes(iEpSize_Fs, iEpSize_Hs) != KErrNone) |
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390 { |
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391 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Unknown endpoint type: %d", aEpInfo.iType)); |
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392 } |
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393 __KTRACE_OPT(KUSB, Kern::Printf(" Now set: iEpSize_Fs=%d iEpSize_Hs=%d (aEpInfo.iSize=%d)", |
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394 iEpSize_Fs, iEpSize_Hs, aEpInfo.iSize)); |
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395 |
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396 // Adjust HS endpoint size for additional transactions |
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397 if ((aEpInfo.iType == KUsbEpTypeIsochronous) || (aEpInfo.iType == KUsbEpTypeInterrupt)) |
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398 { |
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399 if ((aEpInfo.iTransactions > 0) && (aEpInfo.iTransactions < 3)) |
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400 { |
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401 // Bits 12..11 specify the number of additional transactions per microframe |
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402 iEpSize_Hs |= (aEpInfo.iTransactions << 12); |
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403 __KTRACE_OPT(KUSB, Kern::Printf(" Adjusted for add. transact.: iEpSize_Hs=0x%02x " |
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404 "(aEpInfo.iTransactions=%d)", |
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405 iEpSize_Hs, aEpInfo.iTransactions)); |
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406 } |
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407 else if (aEpInfo.iTransactions != 0) |
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408 { |
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409 __KTRACE_OPT(KPANIC, Kern::Printf(" Warning: Invalid iTransactions value: %d (ignored)", |
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410 aEpInfo.iTransactions)); |
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411 } |
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412 } |
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413 |
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414 // Adjust HS polling interval |
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415 TUsbcEndpointInfo info(aEpInfo); // create local writeable copy |
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416 if (info.AdjustPollInterval() != KErrNone) |
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417 { |
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418 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Unknown ep type (%d) or invalid interval value (%d)", |
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419 info.iType, info.iInterval)); |
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420 } |
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421 iInterval_Fs = info.iInterval; |
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422 iInterval_Hs = info.iInterval_Hs; |
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423 __KTRACE_OPT(KUSB, Kern::Printf(" Now set: iInterval_Fs=%d iInterval_Hs=%d", |
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424 iInterval_Fs, iInterval_Hs)); |
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425 return KErrNone; |
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426 } |
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427 |
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428 |
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429 void TUsbcEndpointDescriptorBase::UpdateFs() |
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430 { |
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431 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcEndpointDescriptorBase::UpdateFs()")); |
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432 // (TUsbcEndpointDescriptorBase's FS/HS endpoint sizes and interval values got |
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433 // adjusted in its Construct() method.) |
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434 SetWord(4, iEpSize_Fs); // wMaxPacketSize |
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435 SetByte(6, iInterval_Fs); // bInterval |
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436 } |
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437 |
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438 |
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439 void TUsbcEndpointDescriptorBase::UpdateHs() |
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440 { |
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441 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcEndpointDescriptorBase::UpdateHs()")); |
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442 // (TUsbcEndpointDescriptorBase's FS/HS endpoint sizes and interval values get |
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443 // adjusted in its Construct() method.) |
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444 SetWord(4, iEpSize_Hs); // wMaxPacketSize |
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445 SetByte(6, iInterval_Hs); // bInterval |
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446 } |
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447 |
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448 |
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449 // --- TUsbcEndpointDescriptor |
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450 |
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451 TUsbcEndpointDescriptor::TUsbcEndpointDescriptor() |
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452 : iBuf() |
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453 { |
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454 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcEndpointDescriptor::TUsbcEndpointDescriptor()")); |
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455 } |
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456 |
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457 |
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458 TUsbcEndpointDescriptor* TUsbcEndpointDescriptor::New(TUint8 aEndpointAddress, |
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459 const TUsbcEndpointInfo& aEpInfo) |
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460 { |
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461 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcEndpointDescriptor::New()")); |
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462 TUsbcEndpointDescriptor* self = new TUsbcEndpointDescriptor(); |
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463 if (self) |
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464 { |
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465 if (self->Construct(aEndpointAddress, aEpInfo) != KErrNone) |
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466 { |
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467 delete self; |
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468 return NULL; |
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469 } |
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470 } |
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471 return self; |
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472 } |
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473 |
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474 |
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475 TInt TUsbcEndpointDescriptor::Construct(TUint8 aEndpointAddress, const TUsbcEndpointInfo& aEpInfo) |
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476 { |
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477 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcEndpointDescriptor::Construct()")); |
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478 (void) TUsbcEndpointDescriptorBase::Construct(aEpInfo); // Init Base class |
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479 iBuf.SetMax(); |
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480 SetBufferPointer(iBuf); |
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481 iBuf[0] = iBuf.Size(); // bLength |
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482 iBuf[1] = KUsbDescType_Endpoint; // bDescriptorType |
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483 iBuf[2] = aEndpointAddress; // bEndpointAddress |
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484 iBuf[3] = EpTypeMask2Value(aEpInfo.iType); // bmAttributes |
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485 SetWord(4, iEpSize_Fs); // wMaxPacketSize (default is FS) |
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486 iBuf[6] = iInterval_Fs; // bInterval (default is FS) |
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487 return KErrNone; |
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488 } |
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489 |
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490 |
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491 // --- TUsbcAudioEndpointDescriptor |
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492 |
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493 TUsbcAudioEndpointDescriptor::TUsbcAudioEndpointDescriptor() |
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494 : iBuf() |
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495 { |
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496 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcAudioEndpointDescriptor::TUsbcAudioEndpointDescriptor()")); |
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497 } |
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498 |
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499 |
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500 TUsbcAudioEndpointDescriptor* TUsbcAudioEndpointDescriptor::New(TUint8 aEndpointAddress, |
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501 const TUsbcEndpointInfo& aEpInfo) |
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502 { |
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503 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcAudioEndpointDescriptor::New()")); |
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504 TUsbcAudioEndpointDescriptor* self = new TUsbcAudioEndpointDescriptor(); |
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505 if (self) |
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506 { |
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507 if (self->Construct(aEndpointAddress, aEpInfo) != KErrNone) |
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508 { |
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509 delete self; |
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510 return NULL; |
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511 } |
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512 } |
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513 return self; |
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514 } |
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515 |
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516 |
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517 TInt TUsbcAudioEndpointDescriptor::Construct(TUint8 aEndpointAddress, const TUsbcEndpointInfo& aEpInfo) |
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518 { |
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519 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcAudioEndpointDescriptor::Construct()")); |
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520 (void) TUsbcEndpointDescriptorBase::Construct(aEpInfo); // Init Base class |
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521 iBuf.SetMax(); |
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522 SetBufferPointer(iBuf); |
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523 iBuf[0] = iBuf.Size(); // bLength |
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524 iBuf[1] = KUsbDescType_Endpoint; // bDescriptorType |
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525 iBuf[2] = aEndpointAddress; // bEndpointAddress |
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526 iBuf[3] = EpTypeMask2Value(aEpInfo.iType); // bmAttributes |
|
527 SetWord(4, iEpSize_Fs); // wMaxPacketSize (default is FS) |
|
528 iBuf[6] = iInterval_Fs; // bInterval (default is FS) |
|
529 iBuf[7] = 0; |
|
530 iBuf[8] = 0; |
|
531 return KErrNone; |
|
532 } |
|
533 |
|
534 |
|
535 // --- TUsbcOtgDescriptor |
|
536 |
|
537 TUsbcOtgDescriptor* TUsbcOtgDescriptor::New(TBool aHnpSupport, TBool aSrpSupport) |
|
538 { |
|
539 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcOtgDescriptor::New()")); |
|
540 TUsbcOtgDescriptor* self = new TUsbcOtgDescriptor(); |
|
541 if (self && (self->Construct(aHnpSupport, aSrpSupport) != KErrNone)) |
|
542 { |
|
543 delete self; |
|
544 return NULL; |
|
545 } |
|
546 return self; |
|
547 } |
|
548 |
|
549 |
|
550 TUsbcOtgDescriptor::TUsbcOtgDescriptor() |
|
551 : iBuf() |
|
552 { |
|
553 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcOtgDescriptor::TUsbcOtgDescriptor()")); |
|
554 } |
|
555 |
|
556 |
|
557 TInt TUsbcOtgDescriptor::Construct(TBool aHnpSupport, TBool aSrpSupport) |
|
558 { |
|
559 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcOtgDescriptor::Construct()")); |
|
560 iBuf.SetMax(); |
|
561 SetBufferPointer(iBuf); |
|
562 iBuf[0] = iBuf.Size(); // bLength |
|
563 iBuf[1] = KUsbDescType_Otg; // bDescriptorType |
|
564 iBuf[2] = (aHnpSupport ? KUsbOtgAttr_HnpSupp : 0) | |
|
565 (aSrpSupport ? KUsbOtgAttr_SrpSupp : 0); // bmAttributes |
|
566 return KErrNone; |
|
567 } |
|
568 |
|
569 |
|
570 // --- TUsbcClassSpecificDescriptor |
|
571 |
|
572 TUsbcClassSpecificDescriptor::TUsbcClassSpecificDescriptor() |
|
573 : iBuf(NULL) |
|
574 { |
|
575 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcClassSpecificDescriptor::TUsbcClassSpecificDescriptor()")); |
|
576 } |
|
577 |
|
578 |
|
579 TUsbcClassSpecificDescriptor::~TUsbcClassSpecificDescriptor() |
|
580 { |
|
581 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcClassSpecificDescriptor::~TUsbcClassSpecificDescriptor()")); |
|
582 delete iBuf; |
|
583 } |
|
584 |
|
585 |
|
586 TUsbcClassSpecificDescriptor* TUsbcClassSpecificDescriptor::New(TUint8 aType, TInt aSize) |
|
587 { |
|
588 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcClassSpecificDescriptor::New()")); |
|
589 TUsbcClassSpecificDescriptor* self = new TUsbcClassSpecificDescriptor(); |
|
590 if (self) |
|
591 { |
|
592 if (self->Construct(aType, aSize) != KErrNone) |
|
593 { |
|
594 delete self; |
|
595 return NULL; |
|
596 } |
|
597 } |
|
598 return self; |
|
599 } |
|
600 |
|
601 |
|
602 TInt TUsbcClassSpecificDescriptor::Construct(TUint8 aType, TInt aSize) |
|
603 { |
|
604 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcClassSpecificDescriptor::Construct()")); |
|
605 iBuf = HBuf8::New(aSize); |
|
606 if (!iBuf) |
|
607 { |
|
608 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Allocation of CS desc buffer failed")); |
|
609 return KErrNoMemory; |
|
610 } |
|
611 iBuf->SetMax(); |
|
612 SetBufferPointer(*iBuf); |
|
613 SetByte(1, aType); // bDescriptorType |
|
614 return KErrNone; |
|
615 } |
|
616 |
|
617 |
|
618 // --- TUsbcStringDescriptorBase |
|
619 |
|
620 TUsbcStringDescriptorBase::TUsbcStringDescriptorBase() |
|
621 : /*iIndex(0),*/ iSBuf(0), iBufPtr(NULL, 0) |
|
622 { |
|
623 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcStringDescriptorBase::TUsbcStringDescriptorBase()")); |
|
624 } |
|
625 |
|
626 |
|
627 TUsbcStringDescriptorBase::~TUsbcStringDescriptorBase() |
|
628 { |
|
629 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcStringDescriptorBase::~TUsbcStringDescriptorBase()")); |
|
630 } |
|
631 |
|
632 |
|
633 TUint16 TUsbcStringDescriptorBase::Word(TInt aPosition) const |
|
634 { |
|
635 if (aPosition <= 1) |
|
636 { |
|
637 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Word(%d) in string descriptor " |
|
638 "(TUsbcStringDescriptorBase::Word)", aPosition)); |
|
639 return 0; |
|
640 } |
|
641 else |
|
642 { |
|
643 // since iBufPtr[0] is actually string descriptor byte index 2, |
|
644 // we have to subtract 2 from the absolute position. |
|
645 return SWAP_BYTES_16(*reinterpret_cast<const TUint16*>(&iBufPtr[aPosition - 2])); |
|
646 } |
|
647 } |
|
648 |
|
649 |
|
650 void TUsbcStringDescriptorBase::SetWord(TInt aPosition, TUint16 aValue) |
|
651 { |
|
652 if (aPosition <= 1) |
|
653 { |
|
654 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: SetWord(%d) in string descriptor " |
|
655 "(TUsbcStringDescriptorBase::SetWord)", aPosition)); |
|
656 return; |
|
657 } |
|
658 else |
|
659 { |
|
660 // since iBufPtr[0] is actually string descriptor byte index 2, |
|
661 // we have to subtract 2 from the absolute position. |
|
662 *reinterpret_cast<TUint16*>(&iBufPtr[aPosition - 2]) = SWAP_BYTES_16(aValue); |
|
663 } |
|
664 } |
|
665 |
|
666 |
|
667 TInt TUsbcStringDescriptorBase::GetDescriptorData(TUint8* aBuffer) const |
|
668 { |
|
669 aBuffer[0] = iSBuf[0]; |
|
670 aBuffer[1] = iSBuf[1]; |
|
671 memcpy(&aBuffer[2], iBufPtr.Ptr(), iBufPtr.Size()); |
|
672 return Size(); |
|
673 } |
|
674 |
|
675 |
|
676 TInt TUsbcStringDescriptorBase::GetDescriptorData(TUint8* aBuffer, TUint aMaxSize) const |
|
677 { |
|
678 if (aMaxSize < Size()) |
|
679 { |
|
680 // No use to copy only half a string |
|
681 return 0; |
|
682 } |
|
683 return GetDescriptorData(aBuffer); |
|
684 } |
|
685 |
|
686 |
|
687 const TDes8& TUsbcStringDescriptorBase::StringData() const |
|
688 { |
|
689 return iBufPtr; |
|
690 } |
|
691 |
|
692 |
|
693 TDes8& TUsbcStringDescriptorBase::StringData() |
|
694 { |
|
695 return iBufPtr; |
|
696 } |
|
697 |
|
698 |
|
699 TUint TUsbcStringDescriptorBase::Size() const |
|
700 { |
|
701 return iSBuf[0]; |
|
702 } |
|
703 |
|
704 |
|
705 void TUsbcStringDescriptorBase::SetBufferPointer(const TDesC8& aDes) |
|
706 { |
|
707 iBufPtr.Set(const_cast<TUint8*>(aDes.Ptr()), aDes.Size(), aDes.Size()); |
|
708 } |
|
709 |
|
710 |
|
711 // --- TUsbcStringDescriptor |
|
712 |
|
713 TUsbcStringDescriptor::TUsbcStringDescriptor() |
|
714 : iBuf(NULL) |
|
715 { |
|
716 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcStringDescriptor::TUsbcStringDescriptor()")); |
|
717 } |
|
718 |
|
719 |
|
720 TUsbcStringDescriptor::~TUsbcStringDescriptor() |
|
721 { |
|
722 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcStringDescriptor::~TUsbcStringDescriptor()")); |
|
723 delete iBuf; |
|
724 } |
|
725 |
|
726 |
|
727 TUsbcStringDescriptor* TUsbcStringDescriptor::New(const TDesC8& aString) |
|
728 { |
|
729 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcStringDescriptor::New")); |
|
730 TUsbcStringDescriptor* self = new TUsbcStringDescriptor(); |
|
731 if (self) |
|
732 { |
|
733 if (self->Construct(aString) != KErrNone) |
|
734 { |
|
735 delete self; |
|
736 return NULL; |
|
737 } |
|
738 } |
|
739 return self; |
|
740 } |
|
741 |
|
742 |
|
743 TInt TUsbcStringDescriptor::Construct(const TDesC8& aString) |
|
744 { |
|
745 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcStringDescriptor::Construct")); |
|
746 iBuf = HBuf8::New(aString.Size()); // bytes, not UNICODE chars |
|
747 if (!iBuf) |
|
748 { |
|
749 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Allocation of string buffer failed")); |
|
750 return KErrNoMemory; |
|
751 } |
|
752 iBuf->SetMax(); |
|
753 SetBufferPointer(*iBuf); |
|
754 iBufPtr.Copy(aString); |
|
755 iSBuf.SetMax(); |
|
756 iSBuf[0] = iBuf->Size() + 2; // Bytes |
|
757 iSBuf[1] = KUsbDescType_String; |
|
758 return KErrNone; |
|
759 } |
|
760 |
|
761 |
|
762 // --- TUsbcLangIdDescriptor |
|
763 |
|
764 TUsbcLangIdDescriptor::TUsbcLangIdDescriptor() |
|
765 : iBuf(NULL) |
|
766 { |
|
767 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcLangIdDescriptor::TUsbcLangIdDescriptor()")); |
|
768 } |
|
769 |
|
770 |
|
771 TUsbcLangIdDescriptor::~TUsbcLangIdDescriptor() |
|
772 { |
|
773 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcLangIdDescriptor::~TUsbcLangIdDescriptor()")); |
|
774 } |
|
775 |
|
776 |
|
777 TUsbcLangIdDescriptor* TUsbcLangIdDescriptor::New(TUint16 aLangId) |
|
778 { |
|
779 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcLangIdDescriptor::New")); |
|
780 TUsbcLangIdDescriptor* self = new TUsbcLangIdDescriptor(); |
|
781 if (self) |
|
782 { |
|
783 if (self->Construct(aLangId) != KErrNone) |
|
784 { |
|
785 delete self; |
|
786 return NULL; |
|
787 } |
|
788 } |
|
789 return self; |
|
790 } |
|
791 |
|
792 |
|
793 TInt TUsbcLangIdDescriptor::Construct(TUint16 aLangId) |
|
794 { |
|
795 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcLangIdDescriptor::Construct")); |
|
796 iBuf.SetMax(); |
|
797 SetBufferPointer(iBuf); |
|
798 iBufPtr[0] = LowByte(SWAP_BYTES_16(aLangId)); // Language ID value |
|
799 iBufPtr[1] = HighByte(SWAP_BYTES_16(aLangId)); |
|
800 iSBuf.SetMax(); |
|
801 iSBuf[0] = iBuf.Size() + 2; // Bytes |
|
802 iSBuf[1] = KUsbDescType_String; |
|
803 return KErrNone; |
|
804 } |
|
805 |
|
806 |
|
807 // --- TUsbcDescriptorPool |
|
808 |
|
809 TUsbcDescriptorPool::TUsbcDescriptorPool(TUint8* aEp0_TxBuf) |
|
810 // |
|
811 // The constructor for this class. |
|
812 // |
|
813 : iDescriptors(), iStrings(), iIfcIdx(0), iEp0_TxBuf(aEp0_TxBuf), iHighSpeed(EFalse) |
|
814 { |
|
815 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::TUsbcDescriptorPool()")); |
|
816 } |
|
817 |
|
818 |
|
819 TUsbcDescriptorPool::~TUsbcDescriptorPool() |
|
820 { |
|
821 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::~TUsbcDescriptorPool()")); |
|
822 // The destructor of each <class T> object is called before the objects themselves are destroyed. |
|
823 __KTRACE_OPT(KUSB, Kern::Printf(" iDescriptors.Count(): %d", iDescriptors.Count())); |
|
824 iDescriptors.ResetAndDestroy(); |
|
825 __KTRACE_OPT(KUSB, Kern::Printf(" iStrings.Count(): %d", iStrings.Count())); |
|
826 iStrings.ResetAndDestroy(); |
|
827 } |
|
828 |
|
829 |
|
830 TInt TUsbcDescriptorPool::Init(TUsbcDeviceDescriptor* aDeviceDesc, TUsbcConfigDescriptor* aConfigDesc, |
|
831 TUsbcLangIdDescriptor* aLangId, TUsbcStringDescriptor* aManufacturer, |
|
832 TUsbcStringDescriptor* aProduct, TUsbcStringDescriptor* aSerialNum, |
|
833 TUsbcStringDescriptor* aConfig, TUsbcOtgDescriptor* aOtgDesc) |
|
834 { |
|
835 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::Init()")); |
|
836 if (!aDeviceDesc || !aConfigDesc) |
|
837 { |
|
838 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: No Device or Config descriptor specified")); |
|
839 return KErrArgument; |
|
840 } |
|
841 for (TInt n = 0; n < KDescPosition_FirstAvailable; n++) |
|
842 { |
|
843 iDescriptors.Append(NULL); |
|
844 } |
|
845 __ASSERT_DEBUG((iDescriptors.Count() == KDescPosition_FirstAvailable), |
|
846 Kern::Printf(" Error: iDescriptors.Count() (%d) != KDescPosition_FirstAvailable (%d)", |
|
847 iDescriptors.Count(), KDescPosition_FirstAvailable)); |
|
848 iDescriptors[KDescPosition_Device] = aDeviceDesc; |
|
849 iDescriptors[KDescPosition_Config] = aConfigDesc; |
|
850 if (aOtgDesc) |
|
851 { |
|
852 iDescriptors[KDescPosition_Otg] = aOtgDesc; |
|
853 // Update the config descriptor's wTotalLength field |
|
854 UpdateConfigDescriptorLength(KUsbDescSize_Otg); |
|
855 } |
|
856 if (!aLangId) |
|
857 { |
|
858 // USB spec 9.6.7 says: "String index zero for all languages returns a string descriptor |
|
859 // that contains an array of two-byte LANGID codes supported by the device. ... |
|
860 // USB devices that omit all string descriptors must not return an array of LANGID codes." |
|
861 // So if we have at least one string descriptor, we must also have a LANGID descriptor. |
|
862 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: No LANGID string descriptor specified")); |
|
863 return KErrArgument; |
|
864 } |
|
865 iStrings.Insert(aLangId, KStringPosition_Langid); |
|
866 iStrings.Insert(aManufacturer, KStringPosition_Manufact); |
|
867 iStrings.Insert(aProduct, KStringPosition_Product); |
|
868 iStrings.Insert(aSerialNum, KStringPosition_Serial); |
|
869 iStrings.Insert(aConfig, KStringPosition_Config); |
|
870 __ASSERT_DEBUG((iStrings.Count() == 5), |
|
871 Kern::Printf(" Error: iStrings.Count() != 5 (%d)", iStrings.Count())); |
|
872 #ifdef _DEBUG |
|
873 for (TInt i = KStringPosition_Langid; i <= KStringPosition_Config; i++) |
|
874 { |
|
875 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool.iStrings[%d] = 0x%x", i, iStrings[i])); |
|
876 } |
|
877 #endif |
|
878 // Set string indices |
|
879 if (aManufacturer) |
|
880 iDescriptors[KDescPosition_Device]->SetByte(KUsbDescStringIndex_Manufact, |
|
881 KStringPosition_Manufact); |
|
882 if (aProduct) |
|
883 iDescriptors[KDescPosition_Device]->SetByte(KUsbDescStringIndex_Product, |
|
884 KStringPosition_Product); |
|
885 if (aSerialNum) |
|
886 iDescriptors[KDescPosition_Device]->SetByte(KUsbDescStringIndex_Serial, |
|
887 KStringPosition_Serial); |
|
888 if (aConfig) |
|
889 iDescriptors[KDescPosition_Config]->SetByte(KUsbDescStringIndex_Config, |
|
890 KStringPosition_Config); |
|
891 return KErrNone; |
|
892 } |
|
893 |
|
894 |
|
895 TInt TUsbcDescriptorPool::InitHs() |
|
896 { |
|
897 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::InitHs()")); |
|
898 __ASSERT_DEBUG((iDescriptors.Count() >= KDescPosition_FirstAvailable), |
|
899 Kern::Printf(" Error: Call Init() first)")); |
|
900 |
|
901 TUsbcDeviceQualifierDescriptor* const dq_desc = TUsbcDeviceQualifierDescriptor::New( |
|
902 iDescriptors[KDescPosition_Device]->Byte(4), // aDeviceClass |
|
903 iDescriptors[KDescPosition_Device]->Byte(5), // aDeviceSubClass |
|
904 iDescriptors[KDescPosition_Device]->Byte(6), // aDeviceProtocol |
|
905 iDescriptors[KDescPosition_Device]->Byte(7), // aMaxPacketSize0 |
|
906 iDescriptors[KDescPosition_Device]->Byte(17)); // aNumConfigurations |
|
907 if (!dq_desc) |
|
908 { |
|
909 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Memory allocation for dev qualif desc failed.")); |
|
910 return KErrGeneral; |
|
911 } |
|
912 iDescriptors[KDescPosition_DeviceQualifier] = dq_desc; |
|
913 |
|
914 TUsbcOtherSpeedConfigDescriptor* const osc_desc = TUsbcOtherSpeedConfigDescriptor::New( |
|
915 iDescriptors[KDescPosition_Config]->Byte(5), // aConfigurationValue |
|
916 iDescriptors[KDescPosition_Config]->Byte(7) & KUsbDevAttr_SelfPowered, // aSelfPowered |
|
917 iDescriptors[KDescPosition_Config]->Byte(7) & KUsbDevAttr_RemoteWakeup, // aRemoteWakeup |
|
918 iDescriptors[KDescPosition_Config]->Byte(8) * 2); // aMaxPower (mA) |
|
919 if (!osc_desc) |
|
920 { |
|
921 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Memory allocation for other speed conf desc failed.")); |
|
922 return KErrGeneral; |
|
923 } |
|
924 |
|
925 // We need to set the bDescriptorType field manually, as that's the only one |
|
926 // that differs from a Configuration descriptor. |
|
927 osc_desc->SetByte(1, KUsbDescType_OtherSpeedConfig); |
|
928 |
|
929 // Also, initially we set the iConfiguration string index to the same value as |
|
930 // in the Configuration descriptor. |
|
931 osc_desc->SetByte(KUsbDescStringIndex_Config, |
|
932 iDescriptors[KDescPosition_Config]->Byte(KUsbDescStringIndex_Config)); |
|
933 |
|
934 iDescriptors[KDescPosition_OtherSpeedConfig] = osc_desc; |
|
935 |
|
936 return KErrNone; |
|
937 } |
|
938 |
|
939 |
|
940 TInt TUsbcDescriptorPool::UpdateDescriptorsFs() |
|
941 { |
|
942 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::UpdateDescriptorsFs()")); |
|
943 const TInt count = iDescriptors.Count(); |
|
944 for (TInt i = KDescPosition_FirstAvailable; i < count; i++) |
|
945 { |
|
946 TUsbcDescriptorBase* const ptr = iDescriptors[i]; |
|
947 ptr->UpdateFs(); |
|
948 } |
|
949 iHighSpeed = EFalse; |
|
950 return KErrNone; |
|
951 } |
|
952 |
|
953 |
|
954 TInt TUsbcDescriptorPool::UpdateDescriptorsHs() |
|
955 { |
|
956 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::UpdateDescriptorsHs()")); |
|
957 const TInt count = iDescriptors.Count(); |
|
958 for (TInt i = KDescPosition_FirstAvailable; i < count; i++) |
|
959 { |
|
960 TUsbcDescriptorBase* const ptr = iDescriptors[i]; |
|
961 ptr->UpdateHs(); |
|
962 } |
|
963 iHighSpeed = ETrue; |
|
964 return KErrNone; |
|
965 } |
|
966 |
|
967 |
|
968 // |
|
969 // An error can be indicated by either a return value != KErrNone or by a descriptor size == 0. |
|
970 // |
|
971 TInt TUsbcDescriptorPool::FindDescriptor(TUint8 aType, TUint8 aIndex, TUint16 aLangid, TInt& aSize) const |
|
972 { |
|
973 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::FindDescriptor()")); |
|
974 TInt result = KErrGeneral; |
|
975 switch (aType) |
|
976 { |
|
977 case KUsbDescType_Device: |
|
978 if (aLangid != 0) |
|
979 { |
|
980 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: bad langid: 0x%04x", aLangid)); |
|
981 } |
|
982 else if (aIndex > 0) |
|
983 { |
|
984 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: bad device index: %d", aIndex)); |
|
985 } |
|
986 else |
|
987 { |
|
988 aSize = GetDeviceDescriptor(KDescPosition_Device); |
|
989 result = KErrNone; |
|
990 } |
|
991 break; |
|
992 case KUsbDescType_Config: |
|
993 if (aLangid != 0) |
|
994 { |
|
995 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: bad langid: 0x%04x", aLangid)); |
|
996 } |
|
997 else if (aIndex > 0) |
|
998 { |
|
999 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: bad config index: %d", aIndex)); |
|
1000 } |
|
1001 else |
|
1002 { |
|
1003 aSize = GetConfigurationDescriptor(KDescPosition_Config); |
|
1004 result = KErrNone; |
|
1005 } |
|
1006 break; |
|
1007 case KUsbDescType_DeviceQualifier: |
|
1008 if (aLangid != 0) |
|
1009 { |
|
1010 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: bad langid: 0x%04x", aLangid)); |
|
1011 } |
|
1012 else if (aIndex > 0) |
|
1013 { |
|
1014 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: bad device index: %d", aIndex)); |
|
1015 } |
|
1016 else |
|
1017 { |
|
1018 aSize = GetDeviceDescriptor(KDescPosition_DeviceQualifier); |
|
1019 result = KErrNone; |
|
1020 } |
|
1021 break; |
|
1022 case KUsbDescType_OtherSpeedConfig: |
|
1023 if (aLangid != 0) |
|
1024 { |
|
1025 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: bad langid: 0x%04x", aLangid)); |
|
1026 } |
|
1027 else if (aIndex > 0) |
|
1028 { |
|
1029 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: bad config index: %d", aIndex)); |
|
1030 } |
|
1031 else |
|
1032 { |
|
1033 aSize = GetConfigurationDescriptor(KDescPosition_OtherSpeedConfig); |
|
1034 result = KErrNone; |
|
1035 } |
|
1036 break; |
|
1037 case KUsbDescType_Otg: |
|
1038 aSize = GetOtgDescriptor(); |
|
1039 result = KErrNone; |
|
1040 break; |
|
1041 case KUsbDescType_String: |
|
1042 if (aIndex == 0) // 0 addresses the LangId array |
|
1043 { |
|
1044 if (AnyStringDescriptors()) |
|
1045 { |
|
1046 aSize = GetStringDescriptor(aIndex); |
|
1047 result = KErrNone; |
|
1048 } |
|
1049 else |
|
1050 { |
|
1051 __KTRACE_OPT(KUSB, Kern::Printf(" No string descriptors: not returning LANGID array")); |
|
1052 } |
|
1053 } |
|
1054 else |
|
1055 { |
|
1056 if (!aLangid) |
|
1057 { |
|
1058 __KTRACE_OPT(KUSB, |
|
1059 Kern::Printf(" Strange: LANGID=0 for a $ descriptor (ignoring LANGID)")); |
|
1060 // The USB spec doesn't really say what to do in this case, but as there are host apps |
|
1061 // that fail if we return an error here, we choose to ignore the issue. |
|
1062 } |
|
1063 else if (aLangid != iStrings[KStringPosition_Langid]->Word(2)) |
|
1064 { |
|
1065 // We have only one (this) language |
|
1066 __KTRACE_OPT(KUSB, |
|
1067 Kern::Printf(" Bad LANGID: 0x%04X requested, 0x%04X supported (ignoring LANGID)", |
|
1068 aLangid, iStrings[KStringPosition_Langid]->Word(2))); |
|
1069 // We could return an error here, but rather choose to ignore the discrepancy |
|
1070 // (the USB spec is not very clear what to do in such a case anyway). |
|
1071 } |
|
1072 aSize = GetStringDescriptor(aIndex); |
|
1073 result = KErrNone; |
|
1074 } |
|
1075 break; |
|
1076 case KUsbDescType_CS_Interface: |
|
1077 /* fall through */ |
|
1078 case KUsbDescType_CS_Endpoint: |
|
1079 __KTRACE_OPT(KPANIC, Kern::Printf(" Warning: finding of class specific descriptors not supported")); |
|
1080 break; |
|
1081 default: |
|
1082 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: unknown descriptor type requested: %d", aType)); |
|
1083 break; |
|
1084 } |
|
1085 return result; |
|
1086 } |
|
1087 |
|
1088 |
|
1089 void TUsbcDescriptorPool::InsertDescriptor(TUsbcDescriptorBase* aDesc) |
|
1090 { |
|
1091 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::InsertDescriptor()")); |
|
1092 switch (aDesc->Type()) |
|
1093 { |
|
1094 case KUsbDescType_Interface: |
|
1095 InsertIfcDesc(aDesc); |
|
1096 break; |
|
1097 case KUsbDescType_Endpoint: |
|
1098 InsertEpDesc(aDesc); |
|
1099 break; |
|
1100 default: |
|
1101 __KTRACE_OPT(KUSB, Kern::Printf(" Error: unsupported descriptor type")); |
|
1102 } |
|
1103 } |
|
1104 |
|
1105 |
|
1106 void TUsbcDescriptorPool::SetIfcStringDescriptor(TUsbcStringDescriptor* aDesc, TInt aNumber, TInt aSetting) |
|
1107 { |
|
1108 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::SetIfcDescriptor(%d, %d)", aNumber, aSetting)); |
|
1109 const TInt i = FindIfcDescriptor(aNumber, aSetting); |
|
1110 if (i < 0) |
|
1111 { |
|
1112 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Ifc descriptor not found (%d, %d)", |
|
1113 aNumber, aSetting)); |
|
1114 return; |
|
1115 } |
|
1116 // Try to find available NULL postition |
|
1117 TInt str_idx = FindAvailableStringPos(); |
|
1118 if (str_idx >= 0) |
|
1119 { |
|
1120 // Insert string descriptor for specified interface |
|
1121 ExchangeStringDescriptor(str_idx, aDesc); |
|
1122 } |
|
1123 else |
|
1124 { |
|
1125 // No NULL found - expand array |
|
1126 str_idx = iStrings.Count(); |
|
1127 if (str_idx > 0xff) |
|
1128 { |
|
1129 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: $ descriptor array full (idx=%d)", str_idx)); |
|
1130 return; |
|
1131 } |
|
1132 while (str_idx < KStringPosition_FirstAvailable) |
|
1133 { |
|
1134 iStrings.Append(NULL); |
|
1135 str_idx = iStrings.Count(); |
|
1136 } |
|
1137 // Append string descriptor for specified interface |
|
1138 iStrings.Append(aDesc); |
|
1139 } |
|
1140 // Update this ifc descriptor's string index field |
|
1141 iDescriptors[i]->SetByte(8, str_idx); |
|
1142 __KTRACE_OPT(KUSB, Kern::Printf(" String for ifc %d/%d (@ pos %d): \"%S\"", aNumber, aSetting, str_idx, |
|
1143 &iStrings[str_idx]->StringData())); |
|
1144 } |
|
1145 |
|
1146 |
|
1147 void TUsbcDescriptorPool::DeleteIfcDescriptor(TInt aNumber, TInt aSetting) |
|
1148 { |
|
1149 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::DeleteIfcDescriptor(%d, %d)", aNumber, aSetting)); |
|
1150 const TInt i = FindIfcDescriptor(aNumber, aSetting); |
|
1151 if (i < 0) |
|
1152 { |
|
1153 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: DeleteIfcDescriptor - descriptor not found (%d, %d)", |
|
1154 aNumber, aSetting)); |
|
1155 return; |
|
1156 } |
|
1157 // Delete (if necessary) specified interface's string descriptor |
|
1158 const TInt si = iDescriptors[i]->Byte(8); |
|
1159 if (si != 0) |
|
1160 { |
|
1161 ExchangeStringDescriptor(si, NULL); |
|
1162 } |
|
1163 // Delete specified ifc setting + all its cs descriptors + all its endpoints + all their cs descriptors: |
|
1164 // find position of the next interface descriptor: we need to delete everything in between |
|
1165 const TInt count = iDescriptors.Count(); |
|
1166 TInt j = i, n = 1; |
|
1167 while (++j < count && iDescriptors[j]->Type() != KUsbDescType_Interface) |
|
1168 ++n; |
|
1169 DeleteDescriptors(i, n); |
|
1170 // Update all the following interfaces' bInterfaceNumber field if required |
|
1171 // (because those descriptors might have moved down by one position) |
|
1172 UpdateIfcNumbers(aNumber); |
|
1173 iIfcIdx = 0; // ifc index no longer valid |
|
1174 } |
|
1175 |
|
1176 |
|
1177 // The TC in many of the following functions stands for 'ThreadCopy', |
|
1178 // because that's what's happening there. |
|
1179 |
|
1180 TInt TUsbcDescriptorPool::GetDeviceDescriptorTC(DThread* aThread, TDes8& aBuffer) const |
|
1181 { |
|
1182 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::GetDeviceDescriptorTC()")); |
|
1183 return Kern::ThreadDesWrite(aThread, &aBuffer, iDescriptors[KDescPosition_Device]->DescriptorData(), 0); |
|
1184 } |
|
1185 |
|
1186 |
|
1187 TInt TUsbcDescriptorPool::SetDeviceDescriptorTC(DThread* aThread, const TDes8& aBuffer) |
|
1188 { |
|
1189 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::SetDeviceDescriptorTC()")); |
|
1190 TBuf8<KUsbDescSize_Device> device; |
|
1191 const TInt r = Kern::ThreadDesRead(aThread, &aBuffer, device, 0); |
|
1192 if (r != KErrNone) |
|
1193 { |
|
1194 return r; |
|
1195 } |
|
1196 iDescriptors[KDescPosition_Device]->SetByte(2, device[2]); // bcdUSB |
|
1197 iDescriptors[KDescPosition_Device]->SetByte(3, device[3]); // bcdUSB (part II) |
|
1198 iDescriptors[KDescPosition_Device]->SetByte(4, device[4]); // bDeviceClass |
|
1199 iDescriptors[KDescPosition_Device]->SetByte(5, device[5]); // bDeviceSubClass |
|
1200 iDescriptors[KDescPosition_Device]->SetByte(6, device[6]); // bDeviceProtocol |
|
1201 iDescriptors[KDescPosition_Device]->SetByte(8, device[8]); // idVendor |
|
1202 iDescriptors[KDescPosition_Device]->SetByte(9, device[9]); // idVendor (part II) |
|
1203 iDescriptors[KDescPosition_Device]->SetByte(10, device[10]); // idProduct |
|
1204 iDescriptors[KDescPosition_Device]->SetByte(11, device[11]); // idProduct (part II) |
|
1205 iDescriptors[KDescPosition_Device]->SetByte(12, device[12]); // bcdDevice |
|
1206 iDescriptors[KDescPosition_Device]->SetByte(13, device[13]); // bcdDevice (part II) |
|
1207 return KErrNone; |
|
1208 } |
|
1209 |
|
1210 |
|
1211 TInt TUsbcDescriptorPool::GetConfigurationDescriptorTC(DThread* aThread, TDes8& aBuffer) const |
|
1212 { |
|
1213 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::GetConfigurationDescriptorTC()")); |
|
1214 return Kern::ThreadDesWrite(aThread, &aBuffer, iDescriptors[KDescPosition_Config]->DescriptorData(), 0); |
|
1215 } |
|
1216 |
|
1217 |
|
1218 TInt TUsbcDescriptorPool::SetConfigurationDescriptorTC(DThread* aThread, const TDes8& aBuffer) |
|
1219 { |
|
1220 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::SetConfigurationDescriptorTC()")); |
|
1221 TBuf8<KUsbDescSize_Config> config; |
|
1222 const TInt r = Kern::ThreadDesRead(aThread, &aBuffer, config, 0); |
|
1223 if (r != KErrNone) |
|
1224 { |
|
1225 return r; |
|
1226 } |
|
1227 iDescriptors[KDescPosition_Config]->SetByte(7, config[7]); // bmAttributes |
|
1228 iDescriptors[KDescPosition_Config]->SetByte(8, config[8]); // bMaxPower |
|
1229 return KErrNone; |
|
1230 } |
|
1231 |
|
1232 |
|
1233 TInt TUsbcDescriptorPool::GetOtgDescriptorTC(DThread* aThread, TDes8& aBuffer) const |
|
1234 { |
|
1235 return Kern::ThreadDesWrite(aThread, &aBuffer, iDescriptors[KDescPosition_Otg]->DescriptorData(), 0); |
|
1236 } |
|
1237 |
|
1238 |
|
1239 TInt TUsbcDescriptorPool::SetOtgDescriptor(const TDesC8& aBuffer) |
|
1240 { |
|
1241 iDescriptors[KDescPosition_Otg]->SetByte(2, aBuffer[2]); // bmAttributes |
|
1242 return KErrNone; |
|
1243 } |
|
1244 |
|
1245 |
|
1246 TInt TUsbcDescriptorPool::GetInterfaceDescriptorTC(DThread* aThread, TDes8& aBuffer, |
|
1247 TInt aInterface, TInt aSetting) const |
|
1248 { |
|
1249 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::GetInterfaceDescriptorTC()")); |
|
1250 const TInt i = FindIfcDescriptor(aInterface, aSetting); |
|
1251 if (i < 0) |
|
1252 { |
|
1253 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such interface")); |
|
1254 return KErrNotFound; |
|
1255 } |
|
1256 return Kern::ThreadDesWrite(aThread, &aBuffer, iDescriptors[i]->DescriptorData(), 0); |
|
1257 } |
|
1258 |
|
1259 |
|
1260 TInt TUsbcDescriptorPool::SetInterfaceDescriptor(const TDes8& aBuffer, TInt aInterface, TInt aSetting) |
|
1261 { |
|
1262 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::SetInterfaceDescriptor()")); |
|
1263 const TInt i = FindIfcDescriptor(aInterface, aSetting); |
|
1264 if (i < 0) |
|
1265 { |
|
1266 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such interface")); |
|
1267 return KErrNotFound; |
|
1268 } |
|
1269 iDescriptors[i]->SetByte(2, aBuffer[2]); // bInterfaceNumber |
|
1270 iDescriptors[i]->SetByte(5, aBuffer[5]); // bInterfaceClass |
|
1271 iDescriptors[i]->SetByte(6, aBuffer[6]); // bInterfaceSubClass |
|
1272 iDescriptors[i]->SetByte(7, aBuffer[7]); // bInterfaceProtocol |
|
1273 return KErrNone; |
|
1274 } |
|
1275 |
|
1276 |
|
1277 TInt TUsbcDescriptorPool::GetEndpointDescriptorTC(DThread* aThread, TDes8& aBuffer, |
|
1278 TInt aInterface, TInt aSetting, TUint8 aEndpointAddress) const |
|
1279 { |
|
1280 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::GetEndpointDescriptorTC()")); |
|
1281 const TInt i = FindEpDescriptor(aInterface, aSetting, aEndpointAddress); |
|
1282 if (i < 0) |
|
1283 { |
|
1284 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such endpoint")); |
|
1285 return KErrNotFound; |
|
1286 } |
|
1287 return Kern::ThreadDesWrite(aThread, &aBuffer, iDescriptors[i]->DescriptorData(), 0); |
|
1288 } |
|
1289 |
|
1290 |
|
1291 TInt TUsbcDescriptorPool::SetEndpointDescriptorTC(DThread* aThread, const TDes8& aBuffer, |
|
1292 TInt aInterface, TInt aSetting, TUint8 aEndpointAddress) |
|
1293 { |
|
1294 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::SetEndpointDescriptorTC()")); |
|
1295 const TInt i = FindEpDescriptor(aInterface, aSetting, aEndpointAddress); |
|
1296 if (i < 0) |
|
1297 { |
|
1298 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such endpoint")); |
|
1299 return KErrNotFound; |
|
1300 } |
|
1301 TBuf8<KUsbDescSize_AudioEndpoint> ep; // it could be an audio endpoint |
|
1302 const TInt r = Kern::ThreadDesRead(aThread, &aBuffer, ep, 0); |
|
1303 if (r != KErrNone) |
|
1304 { |
|
1305 return r; |
|
1306 } |
|
1307 iDescriptors[i]->SetByte(3, ep[3]); // bmAttributes |
|
1308 iDescriptors[i]->SetByte(6, ep[6]); // bInterval |
|
1309 if (iDescriptors[i]->Size() == KUsbDescSize_AudioEndpoint) |
|
1310 { |
|
1311 iDescriptors[i]->SetByte(7, ep[7]); // bRefresh |
|
1312 iDescriptors[i]->SetByte(8, ep[8]); // bSynchAddress |
|
1313 } |
|
1314 return KErrNone; |
|
1315 } |
|
1316 |
|
1317 |
|
1318 TInt TUsbcDescriptorPool::GetEndpointDescriptorSize(TInt aInterface, TInt aSetting, TUint8 aEndpointAddress, |
|
1319 TInt& aSize) const |
|
1320 { |
|
1321 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::GetEndpointDescriptorSize()")); |
|
1322 const TInt i = FindEpDescriptor(aInterface, aSetting, aEndpointAddress); |
|
1323 if (i < 0) |
|
1324 { |
|
1325 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such endpoint")); |
|
1326 return KErrNotFound; |
|
1327 } |
|
1328 aSize = iDescriptors[i]->Size(); |
|
1329 return KErrNone; |
|
1330 } |
|
1331 |
|
1332 |
|
1333 TInt TUsbcDescriptorPool::GetDeviceQualifierDescriptorTC(DThread* aThread, TDes8& aBuffer) const |
|
1334 { |
|
1335 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::GetDeviceQualifierDescriptorTC()")); |
|
1336 if (iDescriptors[KDescPosition_DeviceQualifier] == NULL) |
|
1337 { |
|
1338 __KTRACE_OPT(KPANIC, Kern::Printf(" Warning: Device_Qualifier descriptor not supported")); |
|
1339 return KErrNotSupported; |
|
1340 } |
|
1341 return Kern::ThreadDesWrite(aThread, &aBuffer, |
|
1342 iDescriptors[KDescPosition_DeviceQualifier]->DescriptorData(), 0); |
|
1343 } |
|
1344 |
|
1345 |
|
1346 TInt TUsbcDescriptorPool::SetDeviceQualifierDescriptorTC(DThread* aThread, const TDes8& aBuffer) |
|
1347 { |
|
1348 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::SetDeviceQualifierDescriptorTC()")); |
|
1349 if (iDescriptors[KDescPosition_DeviceQualifier] == NULL) |
|
1350 { |
|
1351 __KTRACE_OPT(KPANIC, Kern::Printf(" Warning: Device_Qualifier descriptor not supported")); |
|
1352 return KErrNotSupported; |
|
1353 } |
|
1354 TBuf8<KUsbDescSize_DeviceQualifier> device; |
|
1355 const TInt r = Kern::ThreadDesRead(aThread, &aBuffer, device, 0); |
|
1356 if (r != KErrNone) |
|
1357 { |
|
1358 return r; |
|
1359 } |
|
1360 iDescriptors[KDescPosition_DeviceQualifier]->SetByte(2, device[2]); // bcdUSB |
|
1361 iDescriptors[KDescPosition_DeviceQualifier]->SetByte(3, device[3]); // bcdUSB (part II) |
|
1362 iDescriptors[KDescPosition_DeviceQualifier]->SetByte(4, device[4]); // bDeviceClass |
|
1363 iDescriptors[KDescPosition_DeviceQualifier]->SetByte(5, device[5]); // bDeviceSubClass |
|
1364 iDescriptors[KDescPosition_DeviceQualifier]->SetByte(6, device[6]); // bDeviceProtocol |
|
1365 return KErrNone; |
|
1366 } |
|
1367 |
|
1368 |
|
1369 TInt TUsbcDescriptorPool::GetOtherSpeedConfigurationDescriptorTC(DThread* aThread, TDes8& aBuffer) const |
|
1370 { |
|
1371 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::GetOtherSpeedConfigurationDescriptorTC()")); |
|
1372 if (iDescriptors[KDescPosition_OtherSpeedConfig] == NULL) |
|
1373 { |
|
1374 __KTRACE_OPT(KPANIC, Kern::Printf(" Warning: Other_Speed_Configuration descriptor not supported")); |
|
1375 return KErrNotSupported; |
|
1376 } |
|
1377 return Kern::ThreadDesWrite(aThread, &aBuffer, |
|
1378 iDescriptors[KDescPosition_OtherSpeedConfig]->DescriptorData(), 0); |
|
1379 } |
|
1380 |
|
1381 |
|
1382 TInt TUsbcDescriptorPool::SetOtherSpeedConfigurationDescriptorTC(DThread* aThread, const TDes8& aBuffer) |
|
1383 { |
|
1384 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::SetOtherSpeedConfigurationDescriptorTC()")); |
|
1385 if (iDescriptors[KDescPosition_OtherSpeedConfig] == NULL) |
|
1386 { |
|
1387 __KTRACE_OPT(KPANIC, Kern::Printf(" Warning: Other_Speed_Configuration descriptor not supported")); |
|
1388 return KErrNotSupported; |
|
1389 } |
|
1390 TBuf8<KUsbDescSize_OtherSpeedConfig> config; |
|
1391 const TInt r = Kern::ThreadDesRead(aThread, &aBuffer, config, 0); |
|
1392 if (r != KErrNone) |
|
1393 { |
|
1394 return r; |
|
1395 } |
|
1396 iDescriptors[KDescPosition_OtherSpeedConfig]->SetByte(7, config[7]); // bmAttributes |
|
1397 iDescriptors[KDescPosition_OtherSpeedConfig]->SetByte(8, config[8]); // bMaxPower |
|
1398 return KErrNone; |
|
1399 } |
|
1400 |
|
1401 |
|
1402 TInt TUsbcDescriptorPool::GetCSInterfaceDescriptorTC(DThread* aThread, TDes8& aBuffer, |
|
1403 TInt aInterface, TInt aSetting) const |
|
1404 { |
|
1405 // first find the interface |
|
1406 TInt i = FindIfcDescriptor(aInterface, aSetting); |
|
1407 if (i < 0) |
|
1408 { |
|
1409 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such interface")); |
|
1410 return KErrNotFound; |
|
1411 } |
|
1412 TInt r = KErrNotFound; |
|
1413 TInt offset = 0; |
|
1414 const TInt count = iDescriptors.Count(); |
|
1415 while (++i < count && iDescriptors[i]->Type() == KUsbDescType_CS_Interface) |
|
1416 { |
|
1417 r = Kern::ThreadDesWrite(aThread, &aBuffer, |
|
1418 iDescriptors[i]->DescriptorData(), offset); |
|
1419 if (r != KErrNone) |
|
1420 break; |
|
1421 offset += iDescriptors[i]->Size(); |
|
1422 } |
|
1423 return r; |
|
1424 } |
|
1425 |
|
1426 |
|
1427 TInt TUsbcDescriptorPool::SetCSInterfaceDescriptorTC(DThread* aThread, const TDes8& aBuffer, |
|
1428 TInt aInterface, TInt aSetting, TInt aSize) |
|
1429 { |
|
1430 // First find the interface |
|
1431 TInt i = FindIfcDescriptor(aInterface, aSetting); |
|
1432 if (i < 0) |
|
1433 { |
|
1434 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such interface")); |
|
1435 return KErrNotFound; |
|
1436 } |
|
1437 // Find a position where to insert the new class specific interface descriptor(s) |
|
1438 const TInt count = iDescriptors.Count(); |
|
1439 while (++i < count && iDescriptors[i]->Type() == KUsbDescType_CS_Interface) |
|
1440 ; |
|
1441 // Create a new cs descriptor |
|
1442 TUsbcClassSpecificDescriptor* desc = TUsbcClassSpecificDescriptor::New(KUsbDescType_CS_Interface, aSize); |
|
1443 if (!desc) |
|
1444 { |
|
1445 return KErrNoMemory; |
|
1446 } |
|
1447 __KTRACE_OPT(KUSB, Kern::Printf(" inserting descriptor at position %d", i)); |
|
1448 iDescriptors.Insert(desc, i); |
|
1449 |
|
1450 // Update the config descriptor's wTotalLength field |
|
1451 UpdateConfigDescriptorLength(aSize); |
|
1452 |
|
1453 // Copy contents from the user side |
|
1454 return Kern::ThreadDesRead(aThread, &aBuffer, iDescriptors[i]->DescriptorData(), 0); |
|
1455 } |
|
1456 |
|
1457 |
|
1458 TInt TUsbcDescriptorPool::GetCSInterfaceDescriptorSize(TInt aInterface, TInt aSetting, TInt& aSize) const |
|
1459 { |
|
1460 // first find the interface |
|
1461 TInt i = FindIfcDescriptor(aInterface, aSetting); |
|
1462 if (i < 0) |
|
1463 { |
|
1464 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such interface")); |
|
1465 return KErrNotFound; |
|
1466 } |
|
1467 TInt r = KErrNotFound; |
|
1468 TInt size = 0; |
|
1469 const TInt count = iDescriptors.Count(); |
|
1470 while (++i < count && iDescriptors[i]->Type() == KUsbDescType_CS_Interface) |
|
1471 { |
|
1472 size += iDescriptors[i]->Size(); |
|
1473 r = KErrNone; |
|
1474 } |
|
1475 if (r == KErrNone) |
|
1476 aSize = size; |
|
1477 return r; |
|
1478 } |
|
1479 |
|
1480 |
|
1481 TInt TUsbcDescriptorPool::GetCSEndpointDescriptorTC(DThread* aThread, TDes8& aBuffer, TInt aInterface, |
|
1482 TInt aSetting, TUint8 aEndpointAddress) const |
|
1483 { |
|
1484 // first find the endpoint |
|
1485 TInt i = FindEpDescriptor(aInterface, aSetting, aEndpointAddress); |
|
1486 if (i < 0) |
|
1487 { |
|
1488 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such endpoint")); |
|
1489 return KErrNotFound; |
|
1490 } |
|
1491 TInt r = KErrNotFound; |
|
1492 TInt offset = 0; |
|
1493 const TInt count = iDescriptors.Count(); |
|
1494 while (++i < count && iDescriptors[i]->Type() == KUsbDescType_CS_Endpoint) |
|
1495 { |
|
1496 r = Kern::ThreadDesWrite(aThread, &aBuffer, |
|
1497 iDescriptors[i]->DescriptorData(), offset); |
|
1498 if (r != KErrNone) |
|
1499 break; |
|
1500 offset += iDescriptors[i]->Size(); |
|
1501 } |
|
1502 return r; |
|
1503 } |
|
1504 |
|
1505 |
|
1506 TInt TUsbcDescriptorPool::SetCSEndpointDescriptorTC(DThread* aThread, const TDes8& aBuffer, TInt aInterface, |
|
1507 TInt aSetting, TUint8 aEndpointAddress, TInt aSize) |
|
1508 { |
|
1509 // first find the endpoint |
|
1510 TInt i = FindEpDescriptor(aInterface, aSetting, aEndpointAddress); |
|
1511 if (i < 0) |
|
1512 { |
|
1513 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such endpoint")); |
|
1514 return KErrNotFound; |
|
1515 } |
|
1516 // find a position where to insert the new class specific endpoint descriptor(s) |
|
1517 const TInt count = iDescriptors.Count(); |
|
1518 while (++i < count && iDescriptors[i]->Type() == KUsbDescType_CS_Endpoint) |
|
1519 ; |
|
1520 // create a new cs descriptor |
|
1521 TUsbcClassSpecificDescriptor* desc = TUsbcClassSpecificDescriptor::New(KUsbDescType_CS_Endpoint, aSize); |
|
1522 if (!desc) |
|
1523 { |
|
1524 return KErrNoMemory; |
|
1525 } |
|
1526 iDescriptors.Insert(desc, i); |
|
1527 // update the config descriptor's wTotalLength field |
|
1528 UpdateConfigDescriptorLength(aSize); |
|
1529 // copy contents from user side |
|
1530 return Kern::ThreadDesRead(aThread, &aBuffer, iDescriptors[i]->DescriptorData(), 0); |
|
1531 } |
|
1532 |
|
1533 |
|
1534 TInt TUsbcDescriptorPool::GetCSEndpointDescriptorSize(TInt aInterface, TInt aSetting, |
|
1535 TUint8 aEndpointAddress, TInt& aSize) const |
|
1536 { |
|
1537 // first find the endpoint |
|
1538 TInt i = FindEpDescriptor(aInterface, aSetting, aEndpointAddress); |
|
1539 if (i < 0) |
|
1540 { |
|
1541 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such endpoint")); |
|
1542 return KErrNotFound; |
|
1543 } |
|
1544 TInt r = KErrNotFound; |
|
1545 TInt size = 0; |
|
1546 const TInt count = iDescriptors.Count(); |
|
1547 while (++i < count && iDescriptors[i]->Type() == KUsbDescType_CS_Endpoint) |
|
1548 { |
|
1549 size += iDescriptors[i]->Size(); |
|
1550 r = KErrNone; |
|
1551 } |
|
1552 if (r == KErrNone) |
|
1553 aSize = size; |
|
1554 return r; |
|
1555 } |
|
1556 |
|
1557 |
|
1558 TInt TUsbcDescriptorPool::GetStringDescriptorLangIdTC(DThread* aThread, TDes8& aLangId) const |
|
1559 { |
|
1560 const TUint16 id = iStrings[KStringPosition_Langid]->Word(2); |
|
1561 const TPtrC8 id_des(reinterpret_cast<const TUint8*>(&id), sizeof(id)); |
|
1562 return Kern::ThreadDesWrite(aThread, &aLangId, id_des, 0); |
|
1563 } |
|
1564 |
|
1565 |
|
1566 TInt TUsbcDescriptorPool::SetStringDescriptorLangId(TUint16 aLangId) |
|
1567 { |
|
1568 iStrings[KStringPosition_Langid]->SetWord(2, aLangId); |
|
1569 return KErrNone; |
|
1570 } |
|
1571 |
|
1572 |
|
1573 TInt TUsbcDescriptorPool::GetManufacturerStringDescriptorTC(DThread* aThread, TDes8& aString) const |
|
1574 { |
|
1575 return GetDeviceStringDescriptorTC(aThread, aString, KUsbDescStringIndex_Manufact, |
|
1576 KStringPosition_Manufact); |
|
1577 } |
|
1578 |
|
1579 |
|
1580 TInt TUsbcDescriptorPool::SetManufacturerStringDescriptorTC(DThread* aThread, const TDes8& aString) |
|
1581 { |
|
1582 return SetDeviceStringDescriptorTC(aThread, aString, KUsbDescStringIndex_Manufact, |
|
1583 KStringPosition_Manufact); |
|
1584 } |
|
1585 |
|
1586 |
|
1587 TInt TUsbcDescriptorPool::RemoveManufacturerStringDescriptor() |
|
1588 { |
|
1589 return RemoveDeviceStringDescriptor(KUsbDescStringIndex_Manufact, KStringPosition_Manufact); |
|
1590 } |
|
1591 |
|
1592 |
|
1593 TInt TUsbcDescriptorPool::GetProductStringDescriptorTC(DThread* aThread, TDes8& aString) const |
|
1594 { |
|
1595 return GetDeviceStringDescriptorTC(aThread, aString, KUsbDescStringIndex_Product, |
|
1596 KStringPosition_Product); |
|
1597 } |
|
1598 |
|
1599 |
|
1600 TInt TUsbcDescriptorPool::SetProductStringDescriptorTC(DThread* aThread, const TDes8& aString) |
|
1601 { |
|
1602 return SetDeviceStringDescriptorTC(aThread, aString, KUsbDescStringIndex_Product, |
|
1603 KStringPosition_Product); |
|
1604 } |
|
1605 |
|
1606 |
|
1607 TInt TUsbcDescriptorPool::RemoveProductStringDescriptor() |
|
1608 { |
|
1609 return RemoveDeviceStringDescriptor(KUsbDescStringIndex_Product, KStringPosition_Product); |
|
1610 } |
|
1611 |
|
1612 |
|
1613 TInt TUsbcDescriptorPool::GetSerialNumberStringDescriptorTC(DThread* aThread, TDes8& aString) const |
|
1614 { |
|
1615 return GetDeviceStringDescriptorTC(aThread, aString, KUsbDescStringIndex_Serial, |
|
1616 KStringPosition_Serial); |
|
1617 } |
|
1618 |
|
1619 |
|
1620 TInt TUsbcDescriptorPool::SetSerialNumberStringDescriptorTC(DThread* aThread, const TDes8& aString) |
|
1621 { |
|
1622 return SetDeviceStringDescriptorTC(aThread, aString, KUsbDescStringIndex_Serial, |
|
1623 KStringPosition_Serial); |
|
1624 } |
|
1625 |
|
1626 |
|
1627 TInt TUsbcDescriptorPool::RemoveSerialNumberStringDescriptor() |
|
1628 { |
|
1629 return RemoveDeviceStringDescriptor(KUsbDescStringIndex_Serial, KStringPosition_Serial); |
|
1630 } |
|
1631 |
|
1632 |
|
1633 TInt TUsbcDescriptorPool::GetConfigurationStringDescriptorTC(DThread* aThread, TDes8& aString) const |
|
1634 { |
|
1635 const TInt str_idx = iDescriptors[KDescPosition_Config]->Byte(KUsbDescStringIndex_Config); |
|
1636 if (str_idx) |
|
1637 { |
|
1638 __ASSERT_ALWAYS((str_idx == KStringPosition_Config), Kern::Fault(KUsbPanicCat, __LINE__)); |
|
1639 __KTRACE_OPT(KUSB, Kern::Printf(" String @ pos %d (conf $): \"%S\"", |
|
1640 str_idx, &iStrings[str_idx]->StringData())); |
|
1641 return Kern::ThreadDesWrite(aThread, &aString, |
|
1642 iStrings[str_idx]->StringData(), 0); |
|
1643 } |
|
1644 else |
|
1645 { |
|
1646 __KTRACE_OPT(KUSB, Kern::Printf(" No config string descriptor @ pos %d", str_idx)); |
|
1647 return KErrNotFound; |
|
1648 } |
|
1649 } |
|
1650 |
|
1651 |
|
1652 TInt TUsbcDescriptorPool::SetConfigurationStringDescriptorTC(DThread* aThread, const TDes8& aString) |
|
1653 { |
|
1654 // we don't know the length of the string, so we have to allocate memory dynamically |
|
1655 TUint strlen = Kern::ThreadGetDesLength(aThread, &aString); |
|
1656 if (strlen > KUsbStringDescStringMaxSize) |
|
1657 { |
|
1658 __KTRACE_OPT(KPANIC, Kern::Printf(" Warning: config $ descriptor too long - will be truncated")); |
|
1659 strlen = KUsbStringDescStringMaxSize; |
|
1660 } |
|
1661 HBuf8* const strbuf = HBuf8::New(strlen); |
|
1662 if (!strbuf) |
|
1663 { |
|
1664 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Memory allocation for config $ desc string failed (1)")); |
|
1665 return KErrNoMemory; |
|
1666 } |
|
1667 strbuf->SetMax(); |
|
1668 // the aString points to data that lives in user memory, so we have to copy it: |
|
1669 const TInt r = Kern::ThreadDesRead(aThread, &aString, *strbuf, 0); |
|
1670 if (r != KErrNone) |
|
1671 { |
|
1672 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Thread read error")); |
|
1673 delete strbuf; |
|
1674 return r; |
|
1675 } |
|
1676 TUsbcStringDescriptor* sd = TUsbcStringDescriptor::New(*strbuf); |
|
1677 if (!sd) |
|
1678 { |
|
1679 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Memory allocation for config $ desc failed (2)")); |
|
1680 delete strbuf; |
|
1681 return KErrNoMemory; |
|
1682 } |
|
1683 // Delete old string, put in new one |
|
1684 ExchangeStringDescriptor(KStringPosition_Config, sd); |
|
1685 // Update Config descriptor string index field |
|
1686 iDescriptors[KDescPosition_Config]->SetByte(KUsbDescStringIndex_Config, KStringPosition_Config); |
|
1687 // Update Other_Speed_Config descriptor string index field as well, if applicable |
|
1688 if (iDescriptors[KDescPosition_OtherSpeedConfig]) |
|
1689 iDescriptors[KDescPosition_OtherSpeedConfig]->SetByte(KUsbDescStringIndex_Config, |
|
1690 KStringPosition_Config); |
|
1691 delete strbuf; |
|
1692 return KErrNone; |
|
1693 } |
|
1694 |
|
1695 |
|
1696 TInt TUsbcDescriptorPool::RemoveConfigurationStringDescriptor() |
|
1697 { |
|
1698 if (iDescriptors[KDescPosition_Config]->Byte(KUsbDescStringIndex_Config) == 0) |
|
1699 { |
|
1700 __KTRACE_OPT(KUSB, Kern::Printf(" RemoveConfigurationStringDescriptor: no $ desc @ index %d", |
|
1701 KUsbDescStringIndex_Config)); |
|
1702 return KErrNotFound; |
|
1703 } |
|
1704 // Delete old string, put in NULL pointer |
|
1705 ExchangeStringDescriptor(KStringPosition_Config, NULL); |
|
1706 // Update Config descriptor string index field |
|
1707 iDescriptors[KDescPosition_Config]->SetByte(KUsbDescStringIndex_Config, 0); |
|
1708 // Update Other_Speed_Config descriptor string index field as well, if applicable |
|
1709 if (iDescriptors[KDescPosition_OtherSpeedConfig]) |
|
1710 iDescriptors[KDescPosition_OtherSpeedConfig]->SetByte(KUsbDescStringIndex_Config, 0); |
|
1711 return KErrNone; |
|
1712 } |
|
1713 |
|
1714 |
|
1715 TInt TUsbcDescriptorPool::GetStringDescriptorTC(DThread* aThread, TInt aIndex, TDes8& aString) const |
|
1716 { |
|
1717 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::GetStringDescriptorTC()")); |
|
1718 if (!StringDescriptorExists(aIndex)) |
|
1719 { |
|
1720 return KErrNotFound; |
|
1721 } |
|
1722 __KTRACE_OPT(KUSB, Kern::Printf(" String @ pos %d: \"%S\"", |
|
1723 aIndex, &iStrings[aIndex]->StringData())); |
|
1724 return Kern::ThreadDesWrite(aThread, &aString, iStrings[aIndex]->StringData(), 0); |
|
1725 } |
|
1726 |
|
1727 |
|
1728 TInt TUsbcDescriptorPool::SetStringDescriptorTC(DThread* aThread, TInt aIndex, const TDes8& aString) |
|
1729 { |
|
1730 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::SetStringDescriptorTC()")); |
|
1731 // we don't know the length of the string, so we have to allocate memory dynamically |
|
1732 TUint strlen = Kern::ThreadGetDesLength(aThread, &aString); |
|
1733 if (strlen > KUsbStringDescStringMaxSize) |
|
1734 { |
|
1735 __KTRACE_OPT(KPANIC, Kern::Printf(" Warning: $ descriptor too long - will be truncated")); |
|
1736 strlen = KUsbStringDescStringMaxSize; |
|
1737 } |
|
1738 HBuf8* strbuf = HBuf8::New(strlen); |
|
1739 if (!strbuf) |
|
1740 { |
|
1741 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Mem alloc for $ desc string failed (1)")); |
|
1742 return KErrNoMemory; |
|
1743 } |
|
1744 strbuf->SetMax(); |
|
1745 // the aString points to data that lives in user memory, so we have to copy it over: |
|
1746 const TInt r = Kern::ThreadDesRead(aThread, &aString, *strbuf, 0); |
|
1747 if (r != KErrNone) |
|
1748 { |
|
1749 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Thread read error")); |
|
1750 delete strbuf; |
|
1751 return r; |
|
1752 } |
|
1753 TUsbcStringDescriptor* const sd = TUsbcStringDescriptor::New(*strbuf); |
|
1754 if (!sd) |
|
1755 { |
|
1756 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Mem alloc for $ desc failed (2)")); |
|
1757 delete strbuf; |
|
1758 return KErrNoMemory; |
|
1759 } |
|
1760 if (aIndex < iStrings.Count()) |
|
1761 { |
|
1762 ExchangeStringDescriptor(aIndex, sd); |
|
1763 } |
|
1764 else // if (aIndex >= iStrings.Count()) |
|
1765 { |
|
1766 while (aIndex > iStrings.Count()) |
|
1767 { |
|
1768 iStrings.Append(NULL); |
|
1769 } |
|
1770 iStrings.Append(sd); |
|
1771 } |
|
1772 delete strbuf; |
|
1773 return KErrNone; |
|
1774 } |
|
1775 |
|
1776 |
|
1777 TInt TUsbcDescriptorPool::RemoveStringDescriptor(TInt aIndex) |
|
1778 { |
|
1779 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::RemoveStringDescriptor()")); |
|
1780 if (!StringDescriptorExists(aIndex)) |
|
1781 { |
|
1782 return KErrNotFound; |
|
1783 } |
|
1784 __KTRACE_OPT(KUSB, Kern::Printf(" Removing string @ pos %d: \"%S\"", |
|
1785 aIndex, &iStrings[aIndex]->StringData())); |
|
1786 ExchangeStringDescriptor(aIndex, NULL); |
|
1787 |
|
1788 // Make sure there's no $ after aIndex. |
|
1789 const TInt n = iStrings.Count(); |
|
1790 for (TInt i = aIndex; i < n; i++) |
|
1791 { |
|
1792 if (iStrings[i] != NULL) |
|
1793 { |
|
1794 __KTRACE_OPT(KUSB, Kern::Printf(" Found $ @ idx %d - not compressing", i)); |
|
1795 return KErrNone; |
|
1796 } |
|
1797 } |
|
1798 |
|
1799 __KTRACE_OPT(KUSB, Kern::Printf(" No $ found after idx %d - compressing array", aIndex)); |
|
1800 // Move aIndex back just before the first !NULL element. |
|
1801 while (iStrings[--aIndex] == NULL) |
|
1802 ; |
|
1803 // Let aIndex point to first NULL. |
|
1804 aIndex++; |
|
1805 __KTRACE_OPT(KUSB, Kern::Printf(" Starting at index %d", aIndex)); |
|
1806 // Now remove NULL pointers until (Count() == aIndex). |
|
1807 __KTRACE_OPT(KUSB, Kern::Printf(" iStrings.Count() before: %d", iStrings.Count())); |
|
1808 do |
|
1809 { |
|
1810 iStrings.Remove(aIndex); |
|
1811 __KTRACE_OPT(KUSB, Kern::Printf(" Removing $")); |
|
1812 } |
|
1813 while (iStrings.Count() > aIndex); |
|
1814 __KTRACE_OPT(KUSB, Kern::Printf(" iStrings.Count() after: %d", iStrings.Count())); |
|
1815 |
|
1816 // Regain some memory. |
|
1817 iStrings.Compress(); |
|
1818 |
|
1819 return KErrNone; |
|
1820 } |
|
1821 |
|
1822 |
|
1823 // =================================================================== |
|
1824 // --- private --- |
|
1825 // =================================================================== |
|
1826 |
|
1827 // |
|
1828 // Insert an Interface descriptor into the descriptor array at the appropriate index. |
|
1829 // |
|
1830 void TUsbcDescriptorPool::InsertIfcDesc(TUsbcDescriptorBase* aDesc) |
|
1831 { |
|
1832 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::InsertIfcDesc()")); |
|
1833 |
|
1834 const TInt count = iDescriptors.Count(); |
|
1835 TBool ifc_exists = EFalse; // set to 'true' if we're adding an alternate |
|
1836 // setting to an already existing interface |
|
1837 TInt i = KDescPosition_FirstAvailable; |
|
1838 while (i < count) |
|
1839 { |
|
1840 __KTRACE_OPT(KUSB, Kern::Printf(" already descriptors there (%d)...", count)); |
|
1841 if (iDescriptors[i]->Type() == KUsbDescType_Interface) |
|
1842 { |
|
1843 if (iDescriptors[i]->Byte(2) > aDesc->Byte(2)) |
|
1844 { |
|
1845 // our interface number is less than the one's just found => insert before it (= here) |
|
1846 break; |
|
1847 } |
|
1848 else if (iDescriptors[i]->Byte(2) == aDesc->Byte(2)) |
|
1849 { |
|
1850 ifc_exists = ETrue; |
|
1851 // same interface number => look at settings number |
|
1852 if (iDescriptors[i]->Byte(3) > aDesc->Byte(3)) |
|
1853 { |
|
1854 // our setting number is less than the one's found => insert before (= here) |
|
1855 break; |
|
1856 } |
|
1857 else if (iDescriptors[i]->Byte(3) == aDesc->Byte(3)) |
|
1858 { |
|
1859 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: first delete old desc " |
|
1860 "(TUsbcDescriptorPool::InsertIfcDesc)")); |
|
1861 return; |
|
1862 } |
|
1863 } |
|
1864 } |
|
1865 ++i; |
|
1866 } |
|
1867 // In any case: put the new descriptor at position i. |
|
1868 __KTRACE_OPT(KUSB, Kern::Printf(" inserting descriptor at position %d", i)); |
|
1869 iDescriptors.Insert(aDesc, i); |
|
1870 |
|
1871 // Update the config descriptor's wTotalLength field. |
|
1872 UpdateConfigDescriptorLength(KUsbDescSize_Interface); |
|
1873 |
|
1874 if (!ifc_exists) |
|
1875 { |
|
1876 // If this is the first setting for the interface, increment bNumInterfaces. |
|
1877 UpdateConfigDescriptorNumIfcs(1); |
|
1878 } |
|
1879 |
|
1880 iIfcIdx = i; |
|
1881 } |
|
1882 |
|
1883 |
|
1884 // |
|
1885 // Insert an Endpoint descriptor into the descriptor array at the appropriate index. |
|
1886 // |
|
1887 void TUsbcDescriptorPool::InsertEpDesc(TUsbcDescriptorBase* aDesc) |
|
1888 { |
|
1889 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::InsertEpDesc()")); |
|
1890 if (iIfcIdx == 0) |
|
1891 { |
|
1892 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: only after interface " |
|
1893 "(TUsbcDescriptorPool::InsertEpDesc)")); |
|
1894 return; |
|
1895 } |
|
1896 const TInt count = iDescriptors.Count(); |
|
1897 TInt i = iIfcIdx + 1; |
|
1898 while (i < count) |
|
1899 { |
|
1900 if (iDescriptors[i]->Type() != KUsbDescType_Endpoint) |
|
1901 break; |
|
1902 ++i; |
|
1903 } |
|
1904 // put the new descriptor at position i |
|
1905 iDescriptors.Insert(aDesc, i); |
|
1906 // update the config descriptor's wTotalLength field |
|
1907 UpdateConfigDescriptorLength(aDesc->Size()); |
|
1908 } |
|
1909 |
|
1910 |
|
1911 // |
|
1912 // Find the index of the Interface descriptor for a given interface setting. |
|
1913 // |
|
1914 TInt TUsbcDescriptorPool::FindIfcDescriptor(TInt aIfcNumber, TInt aIfcSetting) const |
|
1915 { |
|
1916 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::FindIfcDescriptor(%d, %d)", |
|
1917 aIfcNumber, aIfcSetting)); |
|
1918 const TInt count = iDescriptors.Count(); |
|
1919 for (TInt i = KDescPosition_FirstAvailable; i < count; i++) |
|
1920 { |
|
1921 if ((iDescriptors[i]->Type() == KUsbDescType_Interface) && |
|
1922 (iDescriptors[i]->Byte(2) == aIfcNumber) && |
|
1923 (iDescriptors[i]->Byte(3) == aIfcSetting)) |
|
1924 { |
|
1925 return i; |
|
1926 } |
|
1927 } |
|
1928 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such interface")); |
|
1929 return -1; |
|
1930 } |
|
1931 |
|
1932 |
|
1933 // |
|
1934 // Find the index of the Endpoint descriptor for a given endpoint on a given interface setting. |
|
1935 // |
|
1936 TInt TUsbcDescriptorPool::FindEpDescriptor(TInt aIfcNumber, TInt aIfcSetting, TUint8 aEpAddress) const |
|
1937 { |
|
1938 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::FindEpDescriptor(%d, %d, 0x%02x)", |
|
1939 aIfcNumber, aIfcSetting, aEpAddress)); |
|
1940 // first find the interface |
|
1941 const TInt ifc = FindIfcDescriptor(aIfcNumber, aIfcSetting); |
|
1942 if (ifc < 0) |
|
1943 { |
|
1944 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such interface")); |
|
1945 return ifc; |
|
1946 } |
|
1947 const TInt count = iDescriptors.Count(); |
|
1948 // then, before the next interface, try to locate the endpoint |
|
1949 for (TInt i = ifc + 1; i < count; i++) |
|
1950 { |
|
1951 if (iDescriptors[i]->Type() == KUsbDescType_Interface) |
|
1952 { |
|
1953 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such endpoint before next interface")); |
|
1954 return -1; |
|
1955 } |
|
1956 else if ((iDescriptors[i]->Type() == KUsbDescType_Endpoint) && |
|
1957 (iDescriptors[i]->Byte(2) == aEpAddress)) |
|
1958 { |
|
1959 // found |
|
1960 return i; |
|
1961 } |
|
1962 } |
|
1963 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: no such endpoint")); |
|
1964 return -1; |
|
1965 } |
|
1966 |
|
1967 |
|
1968 // |
|
1969 // Delete n descriptors starting from aIndex and remove their pointers from the array. |
|
1970 // |
|
1971 void TUsbcDescriptorPool::DeleteDescriptors(TInt aIndex, TInt aCount) |
|
1972 { |
|
1973 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::DeleteDescriptors()")); |
|
1974 if (aIndex < KDescPosition_FirstAvailable) |
|
1975 { |
|
1976 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: aIndex < KDescPosition_FirstAvailable")); |
|
1977 return; |
|
1978 } |
|
1979 if (aCount <= 0) |
|
1980 { |
|
1981 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: aCount <= 0")); |
|
1982 return; |
|
1983 } |
|
1984 __KTRACE_OPT(KUSB, Kern::Printf(" Removing descriptors at index %d:", aIndex)); |
|
1985 // Try to update wTotalLength field in Config descriptor |
|
1986 while (aCount--) |
|
1987 { |
|
1988 // In this loop we don't decrement aIndex, because after deleting an element |
|
1989 // aIndex is already indexing the next one. |
|
1990 TUsbcDescriptorBase* const ptr = iDescriptors[aIndex]; |
|
1991 switch (ptr->Type()) |
|
1992 { |
|
1993 case KUsbDescType_Interface: |
|
1994 __KTRACE_OPT(KUSB, Kern::Printf(" - an interface descriptor")); |
|
1995 UpdateConfigDescriptorLength(-KUsbDescSize_Interface); |
|
1996 break; |
|
1997 case KUsbDescType_Endpoint: |
|
1998 __KTRACE_OPT(KUSB, Kern::Printf(" - an endpoint descriptor")); |
|
1999 UpdateConfigDescriptorLength(-ptr->Size()); |
|
2000 break; |
|
2001 case KUsbDescType_CS_Interface: |
|
2002 /* fall through */ |
|
2003 case KUsbDescType_CS_Endpoint: |
|
2004 __KTRACE_OPT(KUSB, Kern::Printf(" - a class specific descriptor")); |
|
2005 UpdateConfigDescriptorLength(-ptr->Size()); |
|
2006 break; |
|
2007 default: |
|
2008 __KTRACE_OPT(KUSB, Kern::Printf(" - an unknown descriptor")); |
|
2009 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: unknown descriptor type")); |
|
2010 } |
|
2011 iDescriptors.Remove(aIndex); |
|
2012 delete ptr; |
|
2013 } |
|
2014 } |
|
2015 |
|
2016 |
|
2017 // |
|
2018 // Update the wTotalLength field in the Configuration descriptor (aLength can be negative). |
|
2019 // |
|
2020 void TUsbcDescriptorPool::UpdateConfigDescriptorLength(TInt aLength) |
|
2021 { |
|
2022 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::UpdateConfigDescriptorLength(%d)", aLength)); |
|
2023 TUsbcDescriptorBase* const cnf = iDescriptors[KDescPosition_Config]; |
|
2024 __KTRACE_OPT(KUSB, Kern::Printf(" wTotalLength old: %d", cnf->Word(2))); |
|
2025 // Update Config descriptor |
|
2026 cnf->SetWord(2, cnf->Word(2) + aLength); |
|
2027 __KTRACE_OPT(KUSB, Kern::Printf(" wTotalLength new: %d", cnf->Word(2))); |
|
2028 // Update Other_Speed_Config descriptor as well, if applicable |
|
2029 if (iDescriptors[KDescPosition_OtherSpeedConfig]) |
|
2030 iDescriptors[KDescPosition_OtherSpeedConfig]->SetWord(2, cnf->Word(2)); |
|
2031 } |
|
2032 |
|
2033 |
|
2034 // |
|
2035 // Update the bNumInterfaces field in the Configuration descriptor (aNumber can be negative). |
|
2036 // |
|
2037 void TUsbcDescriptorPool::UpdateConfigDescriptorNumIfcs(TInt aNumber) |
|
2038 { |
|
2039 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::UpdateConfigDescriptorNumIfcs(%d)", aNumber)); |
|
2040 TUsbcDescriptorBase* const cnf = iDescriptors[KDescPosition_Config]; |
|
2041 __KTRACE_OPT(KUSB, Kern::Printf(" bNumInterfaces old: %d", cnf->Byte(4))); |
|
2042 const TInt n = cnf->Byte(4) + aNumber; |
|
2043 if (n < 0) |
|
2044 { |
|
2045 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: bNumInterfaces + aNumber < 0")); |
|
2046 return; |
|
2047 } |
|
2048 // Update Config descriptor |
|
2049 cnf->SetByte(4, n); |
|
2050 __KTRACE_OPT(KUSB, Kern::Printf(" bNumInterfaces new: %d", cnf->Byte(4))); |
|
2051 // Update Other_Speed_Config descriptor as well, if applicable |
|
2052 if (iDescriptors[KDescPosition_OtherSpeedConfig]) |
|
2053 iDescriptors[KDescPosition_OtherSpeedConfig]->SetByte(4, n); |
|
2054 } |
|
2055 |
|
2056 |
|
2057 // |
|
2058 // Update the bNumInterfaces field in the Configuration descriptor if necessary. |
|
2059 // |
|
2060 void TUsbcDescriptorPool::UpdateIfcNumbers(TInt aNumber) |
|
2061 { |
|
2062 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::UpdateIfcNumbers(%d)", aNumber)); |
|
2063 const TInt count = iDescriptors.Count(); |
|
2064 for (TInt i = KDescPosition_FirstAvailable; i < count; i++) |
|
2065 { |
|
2066 if ((iDescriptors[i]->Type() == KUsbDescType_Interface) && |
|
2067 (iDescriptors[i]->Byte(2) == aNumber)) |
|
2068 { |
|
2069 // there's still an interface with 'number' so we don't need to update anything |
|
2070 return; |
|
2071 } |
|
2072 } |
|
2073 // if we haven't returned yet, we decrement bNumInterfaces |
|
2074 UpdateConfigDescriptorNumIfcs(-1); |
|
2075 } |
|
2076 |
|
2077 |
|
2078 // |
|
2079 // Put the current Device or Device_Qualifier descriptor in the Ep0 Tx buffer. |
|
2080 // Only used for Ep0 standard requests, so target buffer can be hard-wired. |
|
2081 // |
|
2082 TInt TUsbcDescriptorPool::GetDeviceDescriptor(TInt aIndex) const |
|
2083 { |
|
2084 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::GetDeviceDescriptor()")); |
|
2085 __ASSERT_DEBUG((aIndex == KDescPosition_Device) || (aIndex == KDescPosition_DeviceQualifier), |
|
2086 Kern::Printf(" Error: invalid descriptor index: %d", aIndex)); |
|
2087 if (iDescriptors[aIndex] == NULL) |
|
2088 { |
|
2089 // This doesn't have to be an error - we might get asked here for the Device_Qualifier descriptor |
|
2090 // on a FS-only device. |
|
2091 __KTRACE_OPT(KUSB, Kern::Printf(" Descriptor #%d requested but not available", aIndex)); |
|
2092 return 0; |
|
2093 } |
|
2094 return iDescriptors[aIndex]->GetDescriptorData(iEp0_TxBuf, KUsbcBufSz_Ep0Tx); |
|
2095 } |
|
2096 |
|
2097 |
|
2098 // |
|
2099 // Put the current Configuration or Other_Speed_Configuration descriptor + all the following |
|
2100 // descriptors in the Ep0 Tx buffer. |
|
2101 // Only used for Ep0 standard requests, so target buffer can be hard-wired. |
|
2102 // |
|
2103 TInt TUsbcDescriptorPool::GetConfigurationDescriptor(TInt aIndex) const |
|
2104 { |
|
2105 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::GetConfigDescriptor(%d)", aIndex)); |
|
2106 __ASSERT_DEBUG((aIndex == KDescPosition_Config) || (aIndex == KDescPosition_OtherSpeedConfig), |
|
2107 Kern::Printf(" Error: invalid descriptor index: %d", aIndex)); |
|
2108 if (iDescriptors[aIndex] == NULL) |
|
2109 { |
|
2110 // This is always an error: We should always have a Configuration descriptor and we should never |
|
2111 // get asked for the Other_Speed_Configuration descriptor if we don't have one (9.6.2). |
|
2112 __KTRACE_OPT(KPANIC, Kern::Printf(" Warning: Descriptor %d requested but not available", aIndex)); |
|
2113 return 0; |
|
2114 } |
|
2115 const TInt count = iDescriptors.Count(); |
|
2116 TInt copied = 0; |
|
2117 TUint8* buf = iEp0_TxBuf; |
|
2118 for (TInt i = aIndex; i < count; i++) |
|
2119 { |
|
2120 TUsbcDescriptorBase* const ptr = iDescriptors[i]; |
|
2121 if ((aIndex == KDescPosition_OtherSpeedConfig) && (i == KDescPosition_Config)) |
|
2122 { |
|
2123 // Skip Config descriptor when returning Other_Speed_Config |
|
2124 continue; |
|
2125 } |
|
2126 if ((i == KDescPosition_Otg) && (iDescriptors[i] == NULL)) |
|
2127 { |
|
2128 __KTRACE_OPT(KUSB, Kern::Printf(" no OTG descriptor -> next")); |
|
2129 continue; |
|
2130 } |
|
2131 // We need to edit endpoint descriptors on the fly because we have only one copy |
|
2132 // of each and that copy has to contain different information, depending on the |
|
2133 // current speed and the type of descriptor requested. |
|
2134 if (ptr->Type() == KUsbDescType_Endpoint) |
|
2135 { |
|
2136 if ((iHighSpeed && (aIndex == KDescPosition_Config)) || |
|
2137 (!iHighSpeed && (aIndex == KDescPosition_OtherSpeedConfig))) |
|
2138 { |
|
2139 ptr->UpdateHs(); |
|
2140 } |
|
2141 else |
|
2142 { |
|
2143 ptr->UpdateFs(); |
|
2144 } |
|
2145 } |
|
2146 __KTRACE_OPT(KUSB, Kern::Printf(" desc[%02d]: type = 0x%02x size = %d ", |
|
2147 i, ptr->Type(), ptr->Size())); |
|
2148 const TInt size = ptr->GetDescriptorData(buf, KUsbcBufSz_Ep0Tx - copied); |
|
2149 if (size == 0) |
|
2150 { |
|
2151 __KTRACE_OPT(KPANIC, |
|
2152 Kern::Printf(" Error: No Tx buffer space to copy this descriptor -> exiting")); |
|
2153 break; |
|
2154 } |
|
2155 copied += size; |
|
2156 if (copied >= KUsbcBufSz_Ep0Tx) |
|
2157 { |
|
2158 __KTRACE_OPT(KPANIC, |
|
2159 Kern::Printf(" Error: No Tx buffer space left -> stopping here")); |
|
2160 break; |
|
2161 } |
|
2162 buf += size; |
|
2163 } |
|
2164 __KTRACE_OPT(KUSB, Kern::Printf(" copied %d bytes", copied)); |
|
2165 return copied; |
|
2166 } |
|
2167 |
|
2168 |
|
2169 // |
|
2170 // Put the current OTG descriptor in the Ep0 Tx buffer. |
|
2171 // Only used for Ep0 standard requests, so target buffer can be hard-wired. |
|
2172 // |
|
2173 TInt TUsbcDescriptorPool::GetOtgDescriptor() const |
|
2174 { |
|
2175 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::GetOtgDescriptor()")); |
|
2176 if (iDescriptors[KDescPosition_Otg] == NULL) |
|
2177 { |
|
2178 __KTRACE_OPT(KUSB, Kern::Printf(" OTG Descriptor not set")); |
|
2179 return 0; |
|
2180 } |
|
2181 return iDescriptors[KDescPosition_Otg]->GetDescriptorData(iEp0_TxBuf, KUsbcBufSz_Ep0Tx); |
|
2182 } |
|
2183 |
|
2184 |
|
2185 // |
|
2186 // Put a specific String descriptor in the Ep0 Tx buffer. |
|
2187 // Only used for Ep0 standard requests, so target buffer can be hard-wired. |
|
2188 // |
|
2189 TInt TUsbcDescriptorPool::GetStringDescriptor(TInt aIndex) const |
|
2190 { |
|
2191 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::GetStringDescriptor(%d)", aIndex)); |
|
2192 // I really would have liked to display the descriptor contents here, but without trailing zero |
|
2193 // we got a problem: how can we tell printf where the string ends? We would have to |
|
2194 // dynamically allocate memory (since we don't know the size in advance), copy the descriptor |
|
2195 // contents there, append a zero, and give this to printf. That's a bit too much effort... |
|
2196 if (!StringDescriptorExists(aIndex)) |
|
2197 { |
|
2198 return 0; |
|
2199 } |
|
2200 return iStrings[aIndex]->GetDescriptorData(iEp0_TxBuf, KUsbcBufSz_Ep0Tx); |
|
2201 } |
|
2202 |
|
2203 |
|
2204 // |
|
2205 // Write a String descriptor pointed to by the Device descriptor to the user side |
|
2206 // (one of Manufacturer, Product, SerialNumber). |
|
2207 // |
|
2208 TInt TUsbcDescriptorPool::GetDeviceStringDescriptorTC(DThread* aThread, TDes8& aString, |
|
2209 TInt aIndex, TInt aPosition) const |
|
2210 { |
|
2211 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::GetDeviceStringDescriptorTC()")); |
|
2212 const TInt str_idx = iDescriptors[KDescPosition_Device]->Byte(aIndex); |
|
2213 if (str_idx) |
|
2214 { |
|
2215 __ASSERT_ALWAYS((str_idx == aPosition), Kern::Fault(KUsbPanicCat, __LINE__)); |
|
2216 __KTRACE_OPT(KUSB, Kern::Printf(" String @ pos %d (device $): \"%S\"", |
|
2217 str_idx, &iStrings[str_idx]->StringData())); |
|
2218 return Kern::ThreadDesWrite(aThread, &aString, |
|
2219 iStrings[str_idx]->StringData(), 0); |
|
2220 } |
|
2221 else |
|
2222 { |
|
2223 __KTRACE_OPT(KUSB, Kern::Printf(" No string descriptor @ pos %d", aIndex)); |
|
2224 return KErrNotFound; |
|
2225 } |
|
2226 } |
|
2227 |
|
2228 |
|
2229 // |
|
2230 // Read a Device String descriptor from the user side and put in the descriptor arrays |
|
2231 // (one of Manufacturer, Product, SerialNumber). |
|
2232 // |
|
2233 TInt TUsbcDescriptorPool::SetDeviceStringDescriptorTC(DThread* aThread, const TDes8& aString, |
|
2234 TInt aIndex, TInt aPosition) |
|
2235 { |
|
2236 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::SetDeviceStringDescriptorTC()")); |
|
2237 // we don't know the length of the string, so we have to allocate memory dynamically |
|
2238 TUint strlen = Kern::ThreadGetDesLength(aThread, &aString); |
|
2239 if (strlen > KUsbStringDescStringMaxSize) |
|
2240 { |
|
2241 __KTRACE_OPT(KPANIC, Kern::Printf(" Warning: $ descriptor too long - will be truncated")); |
|
2242 strlen = KUsbStringDescStringMaxSize; |
|
2243 } |
|
2244 HBuf8* const strbuf = HBuf8::New(strlen); |
|
2245 if (!strbuf) |
|
2246 { |
|
2247 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Memory allocation for dev $ desc string failed (1)")); |
|
2248 return KErrNoMemory; |
|
2249 } |
|
2250 strbuf->SetMax(); |
|
2251 // the aString points to data that lives in user memory, so we have to copy it: |
|
2252 const TInt r = Kern::ThreadDesRead(aThread, &aString, *strbuf, 0); |
|
2253 if (r != KErrNone) |
|
2254 { |
|
2255 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Thread read error")); |
|
2256 delete strbuf; |
|
2257 return r; |
|
2258 } |
|
2259 TUsbcStringDescriptor* const sd = TUsbcStringDescriptor::New(*strbuf); |
|
2260 if (!sd) |
|
2261 { |
|
2262 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Memory allocation for dev $ desc failed (2)")); |
|
2263 delete strbuf; |
|
2264 return KErrNoMemory; |
|
2265 } |
|
2266 ExchangeStringDescriptor(aPosition, sd); |
|
2267 iDescriptors[KDescPosition_Device]->SetByte(aIndex, aPosition); |
|
2268 delete strbuf; |
|
2269 return r; |
|
2270 } |
|
2271 |
|
2272 |
|
2273 // |
|
2274 // Remove a Device String descriptor from the descriptor arrays |
|
2275 // (one of Manufacturer, Product, SerialNumber). |
|
2276 // |
|
2277 TInt TUsbcDescriptorPool::RemoveDeviceStringDescriptor(TInt aIndex, TInt aPosition) |
|
2278 { |
|
2279 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::RemoveDeviceStringDescriptor()")); |
|
2280 if (iDescriptors[KDescPosition_Device]->Byte(aIndex) == 0) |
|
2281 { |
|
2282 __KTRACE_OPT(KUSB, Kern::Printf(" RemoveDeviceStringDescriptor: no $ desc @ index %d", aIndex)); |
|
2283 return KErrNotFound; |
|
2284 } |
|
2285 ExchangeStringDescriptor(aPosition, NULL); |
|
2286 iDescriptors[KDescPosition_Device]->SetByte(aIndex, 0); |
|
2287 return KErrNone; |
|
2288 } |
|
2289 |
|
2290 |
|
2291 // |
|
2292 // Puts aDesc at postion aIndex in the string descriptor array, after deleting what was (possibly) there. |
|
2293 // |
|
2294 void TUsbcDescriptorPool::ExchangeStringDescriptor(TInt aIndex, const TUsbcStringDescriptor* aDesc) |
|
2295 { |
|
2296 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::ExchangeStringDescriptor()")); |
|
2297 TUsbcStringDescriptorBase* const ptr = iStrings[aIndex]; |
|
2298 __KTRACE_OPT(KUSB, Kern::Printf(" Deleting string descriptor at index %d: 0x%x", aIndex, ptr)); |
|
2299 iStrings.Remove(aIndex); |
|
2300 delete ptr; |
|
2301 __KTRACE_OPT(KUSB, Kern::Printf(" Inserting string descriptor at index %d: 0x%x", aIndex, aDesc)); |
|
2302 iStrings.Insert(aDesc, aIndex); |
|
2303 } |
|
2304 |
|
2305 |
|
2306 // |
|
2307 // Checks whether there are any string descriptors in the array (apart from LangID). |
|
2308 // |
|
2309 TBool TUsbcDescriptorPool::AnyStringDescriptors() const |
|
2310 { |
|
2311 const TInt n = iStrings.Count(); |
|
2312 for (TInt i = 1; i < n; i++) |
|
2313 { |
|
2314 if (iStrings[i] != NULL) |
|
2315 return ETrue; |
|
2316 } |
|
2317 return EFalse; |
|
2318 } |
|
2319 |
|
2320 |
|
2321 // |
|
2322 // Returns true if aIndex exists and what is at that positition is not a NULL pointer. |
|
2323 // |
|
2324 TBool TUsbcDescriptorPool::StringDescriptorExists(TInt aIndex) const |
|
2325 { |
|
2326 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::StringDescriptorExists()")); |
|
2327 if (aIndex >= iStrings.Count()) |
|
2328 { |
|
2329 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: Bad string index: %d", aIndex)); |
|
2330 return EFalse; |
|
2331 } |
|
2332 else if (iStrings[aIndex] == NULL) |
|
2333 { |
|
2334 __KTRACE_OPT(KPANIC, Kern::Printf(" Error: No $ descriptor @ pos %d", aIndex)); |
|
2335 return EFalse; |
|
2336 } |
|
2337 return ETrue; |
|
2338 } |
|
2339 |
|
2340 |
|
2341 // |
|
2342 // |
|
2343 // |
|
2344 TInt TUsbcDescriptorPool::FindAvailableStringPos() const |
|
2345 { |
|
2346 __KTRACE_OPT(KUSB, Kern::Printf("TUsbcDescriptorPool::FindAvailableStringPos()")); |
|
2347 const TInt n = iStrings.Count(); |
|
2348 // We don't start from 0 because the first few locations are 'reserved'. |
|
2349 for (TInt i = KStringPosition_FirstAvailable; i < n; i++) |
|
2350 { |
|
2351 if (iStrings[i] == NULL) |
|
2352 { |
|
2353 __KTRACE_OPT(KUSB, Kern::Printf(" Found available NULL position: %d", i)); |
|
2354 return i; |
|
2355 } |
|
2356 } |
|
2357 return -1; |
|
2358 } |
|
2359 |
|
2360 |
|
2361 // -eof- |