2 * Copyright (C) 2009 The Android Open Source Project
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4 * Licensed under the Apache License, Version 2.0 (the "License");
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5 * you may not use this file except in compliance with the License.
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6 * You may obtain a copy of the License at
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8 * http://www.apache.org/licenses/LICENSE-2.0
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10 * Unless required by applicable law or agreed to in writing, software
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11 * distributed under the License is distributed on an "AS IS" BASIS,
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12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 * See the License for the specific language governing permissions and
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14 * limitations under the License.
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18 This file consists of implementation of class AdbWinUsbInterfaceObject
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19 that encapsulates an interface on our USB device that is accessible
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24 #include "adb_winusb_interface.h"
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25 #include "adb_winusb_endpoint_object.h"
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27 AdbWinUsbInterfaceObject::AdbWinUsbInterfaceObject(const wchar_t* interf_name)
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28 : AdbInterfaceObject(interf_name),
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29 usb_device_handle_(INVALID_HANDLE_VALUE),
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30 winusb_handle_(NULL),
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31 interface_number_(0xFF),
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32 def_read_endpoint_(0xFF),
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33 read_endpoint_id_(0xFF),
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34 def_write_endpoint_(0xFF),
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35 write_endpoint_id_(0xFF) {
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38 AdbWinUsbInterfaceObject::~AdbWinUsbInterfaceObject() {
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39 ATLASSERT(NULL == winusb_handle_);
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40 ATLASSERT(INVALID_HANDLE_VALUE == usb_device_handle_);
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43 ADBAPIHANDLE AdbWinUsbInterfaceObject::CreateHandle() {
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44 // Open USB device for this inteface Note that WinUsb API
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45 // requires the handle to be opened for overlapped I/O.
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46 usb_device_handle_ = CreateFile(interface_name().c_str(),
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47 GENERIC_READ | GENERIC_WRITE,
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48 FILE_SHARE_READ | FILE_SHARE_WRITE,
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49 NULL, OPEN_EXISTING,
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50 FILE_FLAG_OVERLAPPED, NULL);
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51 if (INVALID_HANDLE_VALUE == usb_device_handle_)
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54 // Initialize WinUSB API for this interface
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55 if (!WinUsb_Initialize(usb_device_handle_, &winusb_handle_))
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58 // Cache current interface number that will be used in
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59 // WinUsb_Xxx calls performed on this interface.
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60 if (!WinUsb_GetCurrentAlternateSetting(winusb_handle(), &interface_number_))
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63 // Cache interface properties
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64 unsigned long bytes_written;
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66 // Cache USB device descriptor
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67 if (!WinUsb_GetDescriptor(winusb_handle(), USB_DEVICE_DESCRIPTOR_TYPE, 0, 0,
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68 reinterpret_cast<PUCHAR>(&usb_device_descriptor_),
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69 sizeof(usb_device_descriptor_), &bytes_written)) {
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73 // Cache USB configuration descriptor
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74 if (!WinUsb_GetDescriptor(winusb_handle(), USB_CONFIGURATION_DESCRIPTOR_TYPE,
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76 reinterpret_cast<PUCHAR>(&usb_config_descriptor_),
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77 sizeof(usb_config_descriptor_), &bytes_written)) {
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81 // Cache USB interface descriptor
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82 if (!WinUsb_QueryInterfaceSettings(winusb_handle(), interface_number(),
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83 &usb_interface_descriptor_)) {
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87 // Save indexes and IDs for bulk read / write endpoints. We will use them to
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88 // convert ADB_QUERY_BULK_WRITE_ENDPOINT_INDEX and
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89 // ADB_QUERY_BULK_READ_ENDPOINT_INDEX into actual endpoint indexes and IDs.
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90 for (UCHAR endpoint = 0; endpoint < usb_interface_descriptor_.bNumEndpoints;
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92 // Get endpoint information
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93 WINUSB_PIPE_INFORMATION pipe_info;
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94 if (!WinUsb_QueryPipe(winusb_handle(), interface_number(), endpoint,
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99 if (UsbdPipeTypeBulk == pipe_info.PipeType) {
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100 // This is a bulk endpoint. Cache its index and ID.
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101 if (0 != (pipe_info.PipeId & USB_ENDPOINT_DIRECTION_MASK)) {
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102 // Use this endpoint as default bulk read endpoint
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103 ATLASSERT(0xFF == def_read_endpoint_);
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104 def_read_endpoint_ = endpoint;
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105 read_endpoint_id_ = pipe_info.PipeId;
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107 // Use this endpoint as default bulk write endpoint
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108 ATLASSERT(0xFF == def_write_endpoint_);
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109 def_write_endpoint_ = endpoint;
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110 write_endpoint_id_ = pipe_info.PipeId;
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115 return AdbInterfaceObject::CreateHandle();
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118 bool AdbWinUsbInterfaceObject::CloseHandle() {
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119 if (NULL != winusb_handle_) {
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120 WinUsb_Free(winusb_handle_);
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121 winusb_handle_ = NULL;
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123 if (INVALID_HANDLE_VALUE != usb_device_handle_) {
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124 ::CloseHandle(usb_device_handle_);
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125 usb_device_handle_ = INVALID_HANDLE_VALUE;
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128 return AdbInterfaceObject::CloseHandle();
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131 bool AdbWinUsbInterfaceObject::GetSerialNumber(void* buffer,
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132 unsigned long* buffer_char_size,
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135 SetLastError(ERROR_INVALID_HANDLE);
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139 if (NULL == buffer_char_size) {
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140 SetLastError(ERROR_INVALID_PARAMETER);
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144 // Calculate serial number string size. Note that WinUsb_GetDescriptor
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145 // API will not return number of bytes needed to store serial number
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146 // string. So we will have to start with a reasonably large preallocated
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147 // buffer and then loop through WinUsb_GetDescriptor calls, doubling up
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148 // string buffer size every time ERROR_INSUFFICIENT_BUFFER is returned.
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150 // Preallocate reasonably sized buffer on the stack.
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151 char small_buffer[64];
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152 USB_STRING_DESCRIPTOR initial_ser_num;
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154 USB_STRING_DESCRIPTOR* ser_num = &initial_ser_num;
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155 // Buffer byte size
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156 unsigned long ser_num_size = sizeof(small_buffer);
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157 // After successful call to WinUsb_GetDescriptor will contain serial
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158 // number descriptor size.
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159 unsigned long bytes_written;
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160 while (!WinUsb_GetDescriptor(winusb_handle(), USB_STRING_DESCRIPTOR_TYPE,
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161 usb_device_descriptor_.iSerialNumber,
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162 0x0409, // English (US)
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163 reinterpret_cast<PUCHAR>(ser_num),
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164 ser_num_size, &bytes_written)) {
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165 // Any error other than ERROR_INSUFFICIENT_BUFFER is terminal here.
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166 if (ERROR_INSUFFICIENT_BUFFER != GetLastError()) {
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167 if (ser_num != &initial_ser_num)
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168 delete[] reinterpret_cast<char*>(ser_num);
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172 // Double up buffer size and reallocate string buffer
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174 if (ser_num != &initial_ser_num)
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175 delete[] reinterpret_cast<char*>(ser_num);
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178 reinterpret_cast<USB_STRING_DESCRIPTOR*>(new char[ser_num_size]);
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180 SetLastError(ERROR_OUTOFMEMORY);
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185 // Serial number string length
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186 unsigned long str_len = (ser_num->bLength -
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187 FIELD_OFFSET(USB_STRING_DESCRIPTOR, bString)) /
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190 // Lets see if requested buffer is big enough to fit the string
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191 if ((NULL == buffer) || (*buffer_char_size < (str_len + 1))) {
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192 // Requested buffer is too small.
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193 if (ser_num != &initial_ser_num)
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194 delete[] reinterpret_cast<char*>(ser_num);
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195 *buffer_char_size = str_len + 1;
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196 SetLastError(ERROR_INSUFFICIENT_BUFFER);
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202 // We need to convert name from wide char to ansi string
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203 if (0 != WideCharToMultiByte(CP_ACP, 0, ser_num->bString,
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204 static_cast<int>(str_len),
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205 reinterpret_cast<PSTR>(buffer),
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206 static_cast<int>(*buffer_char_size),
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208 // Zero-terminate output string.
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209 reinterpret_cast<char*>(buffer)[str_len] = '\0';
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214 // For wide char output just copy string buffer,
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215 // and zero-terminate output string.
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216 CopyMemory(buffer, ser_num->bString, bytes_written);
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217 reinterpret_cast<wchar_t*>(buffer)[str_len] = L'\0';
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220 if (ser_num != &initial_ser_num)
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221 delete[] reinterpret_cast<char*>(ser_num);
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226 bool AdbWinUsbInterfaceObject::GetEndpointInformation(
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227 UCHAR endpoint_index,
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228 AdbEndpointInformation* info) {
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230 SetLastError(ERROR_INVALID_HANDLE);
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234 if (NULL == info) {
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235 SetLastError(ERROR_INVALID_PARAMETER);
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239 // Get actual endpoint index for predefined read / write endpoints.
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240 if (ADB_QUERY_BULK_READ_ENDPOINT_INDEX == endpoint_index) {
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241 endpoint_index = def_read_endpoint_;
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242 } else if (ADB_QUERY_BULK_WRITE_ENDPOINT_INDEX == endpoint_index) {
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243 endpoint_index = def_write_endpoint_;
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246 // Query endpoint information
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247 WINUSB_PIPE_INFORMATION pipe_info;
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248 if (!WinUsb_QueryPipe(winusb_handle(), interface_number(), endpoint_index,
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253 // Save endpoint information into output.
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254 info->max_packet_size = pipe_info.MaximumPacketSize;
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255 info->max_transfer_size = 0xFFFFFFFF;
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256 info->endpoint_address = pipe_info.PipeId;
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257 info->polling_interval = pipe_info.Interval;
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258 info->setting_index = interface_number();
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259 switch (pipe_info.PipeType) {
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260 case UsbdPipeTypeControl:
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261 info->endpoint_type = AdbEndpointTypeControl;
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264 case UsbdPipeTypeIsochronous:
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265 info->endpoint_type = AdbEndpointTypeIsochronous;
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268 case UsbdPipeTypeBulk:
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269 info->endpoint_type = AdbEndpointTypeBulk;
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272 case UsbdPipeTypeInterrupt:
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273 info->endpoint_type = AdbEndpointTypeInterrupt;
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277 info->endpoint_type = AdbEndpointTypeInvalid;
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284 ADBAPIHANDLE AdbWinUsbInterfaceObject::OpenEndpoint(
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285 UCHAR endpoint_index,
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286 AdbOpenAccessType access_type,
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287 AdbOpenSharingMode sharing_mode) {
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288 // Convert index into id
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291 if ((ADB_QUERY_BULK_READ_ENDPOINT_INDEX == endpoint_index) ||
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292 (def_read_endpoint_ == endpoint_index)) {
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293 endpoint_id = read_endpoint_id_;
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294 endpoint_index = def_read_endpoint_;
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295 } else if ((ADB_QUERY_BULK_WRITE_ENDPOINT_INDEX == endpoint_index) ||
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296 (def_write_endpoint_ == endpoint_index)) {
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297 endpoint_id = write_endpoint_id_;
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298 endpoint_index = def_write_endpoint_;
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300 SetLastError(ERROR_INVALID_PARAMETER);
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304 return OpenEndpoint(endpoint_id, endpoint_index);
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307 ADBAPIHANDLE AdbWinUsbInterfaceObject::OpenEndpoint(UCHAR endpoint_id,
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308 UCHAR endpoint_index) {
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310 SetLastError(ERROR_INVALID_HANDLE);
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314 AdbEndpointObject* adb_endpoint = NULL;
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318 new AdbWinUsbEndpointObject(this, endpoint_id, endpoint_index);
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320 SetLastError(ERROR_OUTOFMEMORY);
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324 ADBAPIHANDLE ret = adb_endpoint->CreateHandle();
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326 adb_endpoint->Release();
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