LUFA/Drivers/USB/Class/Host/RNDISClassHost.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2012.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2012  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 #define  __INCLUDE_FROM_USB_DRIVER
  32 #include "../../Core/USBMode.h"
  33
  34 #if defined(USB_CAN_BE_HOST)
  35
  36 #define  __INCLUDE_FROM_RNDIS_DRIVER
  37 #define  __INCLUDE_FROM_RNDIS_HOST_C
  38 #include "RNDISClassHost.h"
  39
  40 uint8_t RNDIS_Host_ConfigurePipes(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,
  41                                   uint16_t ConfigDescriptorSize,
  42                                   void* ConfigDescriptorData)
  43 {
  44         USB_Descriptor_Endpoint_t*  DataINEndpoint        = NULL;
  45         USB_Descriptor_Endpoint_t*  DataOUTEndpoint       = NULL;
  46         USB_Descriptor_Endpoint_t*  NotificationEndpoint  = NULL;
  47         USB_Descriptor_Interface_t* RNDISControlInterface = NULL;
  48
  49         memset(&RNDISInterfaceInfo->State, 0x00, sizeof(RNDISInterfaceInfo->State));
  50
  51         if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
  52           return RNDIS_ENUMERROR_InvalidConfigDescriptor;
  53
  54         RNDISControlInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
  55
  56         while (!(DataINEndpoint) || !(DataOUTEndpoint) || !(NotificationEndpoint))
  57         {
  58                 if (!(RNDISControlInterface) ||
  59                     USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
  60                                               DCOMP_RNDIS_Host_NextRNDISInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
  61                 {
  62                         if (NotificationEndpoint)
  63                         {
  64                                 if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
  65                                                                                           DCOMP_RNDIS_Host_NextRNDISDataInterface) != DESCRIPTOR_SEARCH_COMP_Found)
  66                                 {
  67                                         return RNDIS_ENUMERROR_NoCompatibleInterfaceFound;
  68                                 }
  69
  70                                 DataINEndpoint  = NULL;
  71                                 DataOUTEndpoint = NULL;
  72                         }
  73                         else
  74                         {
  75                                 if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
  76                                                                                           DCOMP_RNDIS_Host_NextRNDISControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)
  77                                 {
  78                                         return RNDIS_ENUMERROR_NoCompatibleInterfaceFound;
  79                                 }
  80
  81                                 RNDISControlInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
  82
  83                                 NotificationEndpoint = NULL;
  84                         }
  85
  86                         continue;
  87                 }
  88
  89                 USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
  90
  91                 if ((EndpointData->EndpointAddress & ENDPOINT_DIR_MASK) == ENDPOINT_DIR_IN)
  92                 {
  93                         if ((EndpointData->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT)
  94                           NotificationEndpoint = EndpointData;
  95                         else
  96                           DataINEndpoint = EndpointData;
  97                 }
  98                 else
  99                 {
 100                         DataOUTEndpoint = EndpointData;
 101                 }
 102         }
 103
 104         RNDISInterfaceInfo->Config.DataINPipe.Size  = le16_to_cpu(DataINEndpoint->EndpointSize);
 105         RNDISInterfaceInfo->Config.DataINPipe.EndpointAddress = DataINEndpoint->EndpointAddress;
 106         RNDISInterfaceInfo->Config.DataINPipe.Type  = EP_TYPE_BULK;
 107
 108         RNDISInterfaceInfo->Config.DataOUTPipe.Size = le16_to_cpu(DataOUTEndpoint->EndpointSize);
 109         RNDISInterfaceInfo->Config.DataOUTPipe.EndpointAddress = DataOUTEndpoint->EndpointAddress;
 110         RNDISInterfaceInfo->Config.DataOUTPipe.Type = EP_TYPE_BULK;
 111
 112         RNDISInterfaceInfo->Config.NotificationPipe.Size = le16_to_cpu(NotificationEndpoint->EndpointSize);
 113         RNDISInterfaceInfo->Config.NotificationPipe.EndpointAddress = NotificationEndpoint->EndpointAddress;
 114         RNDISInterfaceInfo->Config.NotificationPipe.Type = EP_TYPE_INTERRUPT;
 115
 116         if (!(Pipe_ConfigurePipeTable(&RNDISInterfaceInfo->Config.DataINPipe, 1)))
 117           return false;
 118
 119         if (!(Pipe_ConfigurePipeTable(&RNDISInterfaceInfo->Config.DataOUTPipe, 1)))
 120           return false;
 121
 122         if (!(Pipe_ConfigurePipeTable(&RNDISInterfaceInfo->Config.NotificationPipe, 1)))
 123           return false;
 124
 125         RNDISInterfaceInfo->State.ControlInterfaceNumber = RNDISControlInterface->InterfaceNumber;
 126         RNDISInterfaceInfo->State.IsActive = true;
 127
 128         return RNDIS_ENUMERROR_NoError;
 129 }
 130
 131 static uint8_t DCOMP_RNDIS_Host_NextRNDISControlInterface(void* const CurrentDescriptor)
 132 {
 133         USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
 134
 135         if (Header->Type == DTYPE_Interface)
 136         {
 137                 USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);
 138
 139                 if ((Interface->Class    == CDC_CSCP_CDCClass)    &&
 140                     (Interface->SubClass == CDC_CSCP_ACMSubclass) &&
 141                     (Interface->Protocol == CDC_CSCP_VendorSpecificProtocol))
 142                 {
 143                         return DESCRIPTOR_SEARCH_Found;
 144                 }
 145         }
 146
 147         return DESCRIPTOR_SEARCH_NotFound;
 148 }
 149
 150 static uint8_t DCOMP_RNDIS_Host_NextRNDISDataInterface(void* const CurrentDescriptor)
 151 {
 152         USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
 153
 154         if (Header->Type == DTYPE_Interface)
 155         {
 156                 USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor,
 157                                                                          USB_Descriptor_Interface_t);
 158
 159                 if ((Interface->Class    == CDC_CSCP_CDCDataClass)   &&
 160                     (Interface->SubClass == CDC_CSCP_NoDataSubclass) &&
 161                     (Interface->Protocol == CDC_CSCP_NoDataProtocol))
 162                 {
 163                         return DESCRIPTOR_SEARCH_Found;
 164                 }
 165         }
 166
 167         return DESCRIPTOR_SEARCH_NotFound;
 168 }
 169
 170 static uint8_t DCOMP_RNDIS_Host_NextRNDISInterfaceEndpoint(void* const CurrentDescriptor)
 171 {
 172         USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
 173
 174         if (Header->Type == DTYPE_Endpoint)
 175         {
 176                 USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t);
 177
 178                 uint8_t EndpointType = (Endpoint->Attributes & EP_TYPE_MASK);
 179
 180                 if (((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT)) &&
 181                     !(Pipe_IsEndpointBound(Endpoint->EndpointAddress)))
 182                 {
 183                         return DESCRIPTOR_SEARCH_Found;
 184                 }
 185         }
 186         else if (Header->Type == DTYPE_Interface)
 187         {
 188                 return DESCRIPTOR_SEARCH_Fail;
 189         }
 190
 191         return DESCRIPTOR_SEARCH_NotFound;
 192 }
 193
 194 static uint8_t RNDIS_SendEncapsulatedCommand(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,
 195                                              void* Buffer,
 196                                              const uint16_t Length)
 197 {
 198         USB_ControlRequest = (USB_Request_Header_t)
 199                 {
 200                         .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
 201                         .bRequest      = RNDIS_REQ_SendEncapsulatedCommand,
 202                         .wValue        = 0,
 203                         .wIndex        = RNDISInterfaceInfo->State.ControlInterfaceNumber,
 204                         .wLength       = Length,
 205                 };
 206
 207         Pipe_SelectPipe(PIPE_CONTROLPIPE);
 208
 209         return USB_Host_SendControlRequest(Buffer);
 210 }
 211
 212 static uint8_t RNDIS_GetEncapsulatedResponse(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,
 213                                              void* Buffer,
 214                                              const uint16_t Length)
 215 {
 216         USB_ControlRequest = (USB_Request_Header_t)
 217                 {
 218                         .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
 219                         .bRequest      = RNDIS_REQ_GetEncapsulatedResponse,
 220                         .wValue        = 0,
 221                         .wIndex        = RNDISInterfaceInfo->State.ControlInterfaceNumber,
 222                         .wLength       = Length,
 223                 };
 224
 225         Pipe_SelectPipe(PIPE_CONTROLPIPE);
 226
 227         return USB_Host_SendControlRequest(Buffer);
 228 }
 229
 230 uint8_t RNDIS_Host_SendKeepAlive(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo)
 231 {
 232         uint8_t ErrorCode;
 233
 234         RNDIS_KeepAlive_Message_t  KeepAliveMessage;
 235         RNDIS_KeepAlive_Complete_t KeepAliveMessageResponse;
 236
 237         KeepAliveMessage.MessageType     = CPU_TO_LE32(REMOTE_NDIS_KEEPALIVE_MSG);
 238         KeepAliveMessage.MessageLength   = CPU_TO_LE32(sizeof(RNDIS_KeepAlive_Message_t));
 239         KeepAliveMessage.RequestId       = cpu_to_le32(RNDISInterfaceInfo->State.RequestID++);
 240
 241         if ((ErrorCode = RNDIS_SendEncapsulatedCommand(RNDISInterfaceInfo, &KeepAliveMessage,
 242                                                        sizeof(RNDIS_KeepAlive_Message_t))) != HOST_SENDCONTROL_Successful)
 243         {
 244                 return ErrorCode;
 245         }
 246
 247         if ((ErrorCode = RNDIS_GetEncapsulatedResponse(RNDISInterfaceInfo, &KeepAliveMessageResponse,
 248                                                        sizeof(RNDIS_KeepAlive_Complete_t))) != HOST_SENDCONTROL_Successful)
 249         {
 250                 return ErrorCode;
 251         }
 252
 253         return HOST_SENDCONTROL_Successful;
 254 }
 255
 256 uint8_t RNDIS_Host_InitializeDevice(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo)
 257 {
 258         uint8_t ErrorCode;
 259
 260         RNDIS_Initialize_Message_t  InitMessage;
 261         RNDIS_Initialize_Complete_t InitMessageResponse;
 262
 263         InitMessage.MessageType     = CPU_TO_LE32(REMOTE_NDIS_INITIALIZE_MSG);
 264         InitMessage.MessageLength   = CPU_TO_LE32(sizeof(RNDIS_Initialize_Message_t));
 265         InitMessage.RequestId       = cpu_to_le32(RNDISInterfaceInfo->State.RequestID++);
 266
 267         InitMessage.MajorVersion    = CPU_TO_LE32(REMOTE_NDIS_VERSION_MAJOR);
 268         InitMessage.MinorVersion    = CPU_TO_LE32(REMOTE_NDIS_VERSION_MINOR);
 269         InitMessage.MaxTransferSize = cpu_to_le32(RNDISInterfaceInfo->Config.HostMaxPacketSize);
 270
 271         if ((ErrorCode = RNDIS_SendEncapsulatedCommand(RNDISInterfaceInfo, &InitMessage,
 272                                                        sizeof(RNDIS_Initialize_Message_t))) != HOST_SENDCONTROL_Successful)
 273         {
 274                 return ErrorCode;
 275         }
 276
 277         if ((ErrorCode = RNDIS_GetEncapsulatedResponse(RNDISInterfaceInfo, &InitMessageResponse,
 278                                                        sizeof(RNDIS_Initialize_Complete_t))) != HOST_SENDCONTROL_Successful)
 279         {
 280                 return ErrorCode;
 281         }
 282
 283         if (InitMessageResponse.Status != CPU_TO_LE32(REMOTE_NDIS_STATUS_SUCCESS))
 284           return RNDIS_ERROR_LOGICAL_CMD_FAILED;
 285
 286         RNDISInterfaceInfo->State.DeviceMaxPacketSize = le32_to_cpu(InitMessageResponse.MaxTransferSize);
 287
 288         return HOST_SENDCONTROL_Successful;
 289 }
 290
 291 uint8_t RNDIS_Host_SetRNDISProperty(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,
 292                                     const uint32_t Oid,
 293                                     void* Buffer,
 294                                     const uint16_t Length)
 295 {
 296         uint8_t ErrorCode;
 297
 298         struct
 299         {
 300                 RNDIS_Set_Message_t SetMessage;
 301                 uint8_t             ContiguousBuffer[Length];
 302         } SetMessageData;
 303
 304         RNDIS_Set_Complete_t SetMessageResponse;
 305
 306         SetMessageData.SetMessage.MessageType    = CPU_TO_LE32(REMOTE_NDIS_SET_MSG);
 307         SetMessageData.SetMessage.MessageLength  = cpu_to_le32(sizeof(RNDIS_Set_Message_t) + Length);
 308         SetMessageData.SetMessage.RequestId      = cpu_to_le32(RNDISInterfaceInfo->State.RequestID++);
 309
 310         SetMessageData.SetMessage.Oid            = cpu_to_le32(Oid);
 311         SetMessageData.SetMessage.InformationBufferLength = cpu_to_le32(Length);
 312         SetMessageData.SetMessage.InformationBufferOffset = CPU_TO_LE32(sizeof(RNDIS_Set_Message_t) - sizeof(RNDIS_Message_Header_t));
 313         SetMessageData.SetMessage.DeviceVcHandle = CPU_TO_LE32(0);
 314
 315         memcpy(&SetMessageData.ContiguousBuffer, Buffer, Length);
 316
 317         if ((ErrorCode = RNDIS_SendEncapsulatedCommand(RNDISInterfaceInfo, &SetMessageData,
 318                                                        SetMessageData.SetMessage.MessageLength)) != HOST_SENDCONTROL_Successful)
 319         {
 320                 return ErrorCode;
 321         }
 322
 323         if ((ErrorCode = RNDIS_GetEncapsulatedResponse(RNDISInterfaceInfo, &SetMessageResponse,
 324                                                        sizeof(RNDIS_Set_Complete_t))) != HOST_SENDCONTROL_Successful)
 325         {
 326                 return ErrorCode;
 327         }
 328
 329         if (SetMessageResponse.Status != CPU_TO_LE32(REMOTE_NDIS_STATUS_SUCCESS))
 330           return RNDIS_ERROR_LOGICAL_CMD_FAILED;
 331
 332         return HOST_SENDCONTROL_Successful;
 333 }
 334
 335 uint8_t RNDIS_Host_QueryRNDISProperty(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,
 336                                       const uint32_t Oid,
 337                                       void* Buffer,
 338                                       const uint16_t MaxLength)
 339 {
 340         uint8_t ErrorCode;
 341
 342         RNDIS_Query_Message_t QueryMessage;
 343
 344         struct
 345         {
 346                 RNDIS_Query_Complete_t QueryMessageResponse;
 347                 uint8_t                ContiguousBuffer[MaxLength];
 348         } QueryMessageResponseData;
 349
 350         QueryMessage.MessageType    = CPU_TO_LE32(REMOTE_NDIS_QUERY_MSG);
 351         QueryMessage.MessageLength  = CPU_TO_LE32(sizeof(RNDIS_Query_Message_t));
 352         QueryMessage.RequestId      = cpu_to_le32(RNDISInterfaceInfo->State.RequestID++);
 353
 354         QueryMessage.Oid            = cpu_to_le32(Oid);
 355         QueryMessage.InformationBufferLength = CPU_TO_LE32(0);
 356         QueryMessage.InformationBufferOffset = CPU_TO_LE32(0);
 357         QueryMessage.DeviceVcHandle = CPU_TO_LE32(0);
 358
 359         if ((ErrorCode = RNDIS_SendEncapsulatedCommand(RNDISInterfaceInfo, &QueryMessage,
 360                                                        sizeof(RNDIS_Query_Message_t))) != HOST_SENDCONTROL_Successful)
 361         {
 362                 return ErrorCode;
 363         }
 364
 365         if ((ErrorCode = RNDIS_GetEncapsulatedResponse(RNDISInterfaceInfo, &QueryMessageResponseData,
 366                                                        sizeof(QueryMessageResponseData))) != HOST_SENDCONTROL_Successful)
 367         {
 368                 return ErrorCode;
 369         }
 370
 371         if (QueryMessageResponseData.QueryMessageResponse.Status != CPU_TO_LE32(REMOTE_NDIS_STATUS_SUCCESS))
 372           return RNDIS_ERROR_LOGICAL_CMD_FAILED;
 373
 374         memcpy(Buffer, &QueryMessageResponseData.ContiguousBuffer, MaxLength);
 375
 376         return HOST_SENDCONTROL_Successful;
 377 }
 378
 379 bool RNDIS_Host_IsPacketReceived(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo)
 380 {
 381         bool PacketWaiting;
 382
 383         if ((USB_HostState != HOST_STATE_Configured) || !(RNDISInterfaceInfo->State.IsActive))
 384           return false;
 385
 386         Pipe_SelectPipe(RNDISInterfaceInfo->Config.DataINPipe.Address);
 387
 388         Pipe_Unfreeze();
 389         PacketWaiting = Pipe_IsINReceived();
 390         Pipe_Freeze();
 391
 392         return PacketWaiting;
 393 }
 394
 395 uint8_t RNDIS_Host_ReadPacket(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,
 396                               void* Buffer,
 397                               uint16_t* const PacketLength)
 398 {
 399         uint8_t ErrorCode;
 400
 401         if ((USB_HostState != HOST_STATE_Configured) || !(RNDISInterfaceInfo->State.IsActive))
 402           return PIPE_READYWAIT_DeviceDisconnected;
 403
 404         Pipe_SelectPipe(RNDISInterfaceInfo->Config.DataINPipe.Address);
 405         Pipe_Unfreeze();
 406
 407         if (!(Pipe_IsReadWriteAllowed()))
 408         {
 409                 if (Pipe_IsINReceived())
 410                   Pipe_ClearIN();
 411
 412                 *PacketLength = 0;
 413                 Pipe_Freeze();
 414                 return PIPE_RWSTREAM_NoError;
 415         }
 416
 417         RNDIS_Packet_Message_t DeviceMessage;
 418
 419         if ((ErrorCode = Pipe_Read_Stream_LE(&DeviceMessage, sizeof(RNDIS_Packet_Message_t),
 420                                              NULL)) != PIPE_RWSTREAM_NoError)
 421         {
 422                 return ErrorCode;
 423         }
 424
 425         *PacketLength = (uint16_t)le32_to_cpu(DeviceMessage.DataLength);
 426
 427         Pipe_Discard_Stream(DeviceMessage.DataOffset -
 428                             (sizeof(RNDIS_Packet_Message_t) - sizeof(RNDIS_Message_Header_t)),
 429                             NULL);
 430
 431         Pipe_Read_Stream_LE(Buffer, *PacketLength, NULL);
 432
 433         if (!(Pipe_BytesInPipe()))
 434           Pipe_ClearIN();
 435
 436         Pipe_Freeze();
 437
 438         return PIPE_RWSTREAM_NoError;
 439 }
 440
 441 uint8_t RNDIS_Host_SendPacket(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,
 442                               void* Buffer,
 443                               const uint16_t PacketLength)
 444 {
 445         uint8_t ErrorCode;
 446
 447         if ((USB_HostState != HOST_STATE_Configured) || !(RNDISInterfaceInfo->State.IsActive))
 448           return PIPE_READYWAIT_DeviceDisconnected;
 449
 450         RNDIS_Packet_Message_t DeviceMessage;
 451
 452         memset(&DeviceMessage, 0, sizeof(RNDIS_Packet_Message_t));
 453         DeviceMessage.MessageType   = CPU_TO_LE32(REMOTE_NDIS_PACKET_MSG);
 454         DeviceMessage.MessageLength = CPU_TO_LE32(sizeof(RNDIS_Packet_Message_t) + PacketLength);
 455         DeviceMessage.DataOffset    = CPU_TO_LE32(sizeof(RNDIS_Packet_Message_t) - sizeof(RNDIS_Message_Header_t));
 456         DeviceMessage.DataLength    = cpu_to_le32(PacketLength);
 457
 458         Pipe_SelectPipe(RNDISInterfaceInfo->Config.DataOUTPipe.Address);
 459         Pipe_Unfreeze();
 460
 461         if ((ErrorCode = Pipe_Write_Stream_LE(&DeviceMessage, sizeof(RNDIS_Packet_Message_t),
 462                                               NULL)) != PIPE_RWSTREAM_NoError)
 463         {
 464                 return ErrorCode;
 465         }
 466
 467         Pipe_Write_Stream_LE(Buffer, PacketLength, NULL);
 468         Pipe_ClearOUT();
 469
 470         Pipe_Freeze();
 471
 472         return PIPE_RWSTREAM_NoError;
 473 }
 474
 475 #endif
 476