Demos/Host/Incomplete/RNDISEthernetHost/Lib/RNDISCommands.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2009.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, and distribute this software
  13   and its documentation for any purpose and without fee is hereby
  14   granted, provided that the above copyright notice appear in all
  15   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 /** \file
  32  *
  33  *  RNDOS Device commands, to issue RNDIS commands to the device for
  34  *  the control and data transfer between the host and RNDIS device.
  35  */
  36
  37 #include "RNDISCommands.h"
  38
  39 uint32_t RequestID = 0;
  40
  41 uint8_t RNDIS_SendEncapsulatedCommand(void* Buffer, uint16_t Length)
  42 {
  43         USB_ControlRequest = (USB_Request_Header_t)
  44                 {
  45                         .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
  46                         .bRequest      = REQ_SendEncapsulatedCommand,
  47                         .wValue        = 0,
  48                         .wIndex        = 0,
  49                         .wLength       = Length,
  50                 };
  51
  52         printf("==== RNDIS CONTROL REQUEST ====\r\n");
  53         uint8_t* Data = Buffer;
  54         for (uint16_t i = 0; i < Length / 8; i++)
  55         {
  56                 for (uint16_t j = 0; (j < 8) && i*8+j < Length; j++)
  57                         printf("%02X ", *(Data++));
  58
  59                 printf("\r\n");
  60         }
  61         printf("==== ********************* ====\r\n");
  62
  63         /* Select the control pipe for the request transfer */
  64         Pipe_SelectPipe(PIPE_CONTROLPIPE);
  65
  66         return USB_Host_SendControlRequest(Buffer);
  67 }
  68
  69 uint8_t RNDIS_GetEncapsulatedResponse(void* Buffer, uint16_t Length)
  70 {
  71         USB_ControlRequest = (USB_Request_Header_t)
  72                 {
  73                         .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
  74                         .bRequest      = REQ_GetEncapsulatedResponse,
  75                         .wValue        = 0,
  76                         .wIndex        = 0,
  77                         .wLength       = Length,
  78                 };
  79
  80         /* Select the control pipe for the request transfer */
  81         Pipe_SelectPipe(PIPE_CONTROLPIPE);
  82
  83         return USB_Host_SendControlRequest(Buffer);
  84 }
  85
  86 uint8_t RNDIS_InitializeDevice(uint16_t MaxPacketSize, RNDIS_Initialize_Complete_t* InitMessageResponse)
  87 {
  88         uint8_t ErrorCode;
  89
  90         RNDIS_Initialize_Message_t InitMessage;
  91
  92         InitMessage.MessageType     = REMOTE_NDIS_INITIALIZE_MSG;
  93         InitMessage.MessageLength   = sizeof(RNDIS_Initialize_Message_t);
  94         InitMessage.RequestId       = RequestID++;
  95         InitMessage.MajorVersion    = REMOTE_NDIS_VERSION_MAJOR;
  96         InitMessage.MinorVersion    = REMOTE_NDIS_VERSION_MINOR;
  97         InitMessage.MaxTransferSize = sizeof(RNDIS_Packet_Message_t) + MaxPacketSize;
  98
  99         if ((ErrorCode = RNDIS_SendEncapsulatedCommand(&InitMessage,
 100                                                        sizeof(RNDIS_Initialize_Message_t))) != HOST_SENDCONTROL_Successful)
 101         {
 102                 return ErrorCode;
 103         }
 104
 105         if ((ErrorCode = RNDIS_GetEncapsulatedResponse(InitMessageResponse,
 106                                                        sizeof(RNDIS_Initialize_Complete_t))) != HOST_SENDCONTROL_Successful)
 107         {
 108                 return ErrorCode;
 109         }
 110
 111         return HOST_SENDCONTROL_Successful;
 112 }
 113
 114 uint8_t RNDIS_SetRNDISProperty(uint32_t Oid, void* Buffer, uint16_t Length)
 115 {
 116         uint8_t ErrorCode;
 117
 118         struct
 119         {
 120                 RNDIS_Set_Message_t SetMessage;
 121                 uint8_t             ContigiousBuffer[Length];
 122         } SetMessageData;
 123
 124         RNDIS_Set_Complete_t SetMessageResponse;
 125
 126         SetMessageData.SetMessage.MessageType   = REMOTE_NDIS_SET_MSG;
 127         SetMessageData.SetMessage.MessageLength = sizeof(RNDIS_Set_Message_t) + Length;
 128         SetMessageData.SetMessage.RequestId     = RequestID++;
 129
 130         SetMessageData.SetMessage.Oid           = Oid;
 131         SetMessageData.SetMessage.InformationBufferLength = Length;
 132         SetMessageData.SetMessage.InformationBufferOffset = 0;
 133         SetMessageData.SetMessage.DeviceVcHandle = 0;
 134
 135
 136         if ((ErrorCode = RNDIS_SendEncapsulatedCommand(&SetMessageData,
 137                                                        SetMessageData.SetMessage.MessageLength)) != HOST_SENDCONTROL_Successful)
 138         {
 139                 return ErrorCode;
 140         }
 141
 142         if ((ErrorCode = RNDIS_GetEncapsulatedResponse(&SetMessageResponse,
 143                                                        sizeof(RNDIS_Set_Complete_t))) != HOST_SENDCONTROL_Successful)
 144         {
 145                 return ErrorCode;
 146         }
 147
 148         return HOST_SENDCONTROL_Successful;
 149 }