LUFA/Drivers/USB/Class/Device/RNDIS.h

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2011.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2011  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 /** \file
  32  *  \brief Device mode driver for the library USB RNDIS Class driver.
  33  *
  34  *  Device mode driver for the library USB RNDIS Class driver.
  35  *
  36  *  \note This file should not be included directly. It is automatically included as needed by the USB module driver
  37  *        dispatch header located in LUFA/Drivers/USB.h.
  38  */
  39
  40 /** \ingroup Group_USBClassRNDIS
  41  *  @defgroup Group_USBClassRNDISDevice RNDIS Class Device Mode Driver
  42  *
  43  *  \section Sec_Dependencies Module Source Dependencies
  44  *  The following files must be built with any user project that uses this module:
  45  *    - LUFA/Drivers/USB/Class/Device/RNDIS.c <i>(Makefile source module name: LUFA_SRC_USBCLASS)</i>
  46  *
  47  *  \section Sec_ModDescription Module Description
  48  *  Device Mode USB Class driver framework interface, for the RNDIS USB Class driver.
  49  *
  50  *  @{
  51  */
  52
  53 #ifndef _RNDIS_CLASS_DEVICE_H_
  54 #define _RNDIS_CLASS_DEVICE_H_
  55
  56         /* Includes: */
  57                 #include "../../USB.h"
  58                 #include "../Common/RNDIS.h"
  59
  60                 #include <string.h>
  61
  62         /* Enable C linkage for C++ Compilers: */
  63                 #if defined(__cplusplus)
  64                         extern "C" {
  65                 #endif
  66
  67         /* Preprocessor Checks: */
  68                 #if !defined(__INCLUDE_FROM_RNDIS_DRIVER)
  69                         #error Do not include this file directly. Include LUFA/Drivers/USB.h instead.
  70                 #endif
  71
  72                 #if defined(__INCLUDE_FROM_RNDIS_DEVICE_C) && defined(NO_STREAM_CALLBACKS)
  73                         #error The NO_STREAM_CALLBACKS compile time option cannot be used in projects using the library Class drivers.
  74                 #endif
  75
  76
  77         /* Public Interface - May be used in end-application: */
  78                 /* Type Defines: */
  79                         /** \brief RNDIS Class Device Mode Configuration and State Structure.
  80                          *
  81                          *  Class state structure. An instance of this structure should be made for each RNDIS interface
  82                          *  within the user application, and passed to each of the RNDIS class driver functions as the
  83                          *  \c RNDISInterfaceInfo parameter. This stores each RNDIS interface's configuration and state information.
  84                          */
  85                         typedef struct
  86                         {
  87                                 const struct
  88                                 {
  89                                         uint8_t  ControlInterfaceNumber; /**< Interface number of the CDC control interface within the device. */
  90
  91                                         uint8_t  DataINEndpointNumber; /**< Endpoint number of the CDC interface's IN data endpoint. */
  92                                         uint16_t DataINEndpointSize; /**< Size in bytes of the CDC interface's IN data endpoint. */
  93                                         bool     DataINEndpointDoubleBank; /**< Indicates if the RNDIS interface's IN data endpoint should use double banking. */
  94
  95                                         uint8_t  DataOUTEndpointNumber; /**< Endpoint number of the CDC interface's OUT data endpoint. */
  96                                         uint16_t DataOUTEndpointSize;  /**< Size in bytes of the CDC interface's OUT data endpoint. */
  97                                         bool     DataOUTEndpointDoubleBank; /**< Indicates if the RNDIS interface's OUT data endpoint should use double banking. */
  98
  99                                         uint8_t  NotificationEndpointNumber; /**< Endpoint number of the CDC interface's IN notification endpoint, if used. */
 100                                         uint16_t NotificationEndpointSize;  /**< Size in bytes of the CDC interface's IN notification endpoint, if used. */
 101                                         bool     NotificationEndpointDoubleBank; /**< Indicates if the RNDIS interface's notification endpoint should use double banking. */
 102
 103                                         char*         AdapterVendorDescription; /**< String description of the adapter vendor. */
 104                                         MAC_Address_t AdapterMACAddress; /**< MAC address of the adapter. */
 105                                 } Config; /**< Config data for the USB class interface within the device. All elements in this section.
 106                                            *   <b>must</b> be set or the interface will fail to enumerate and operate correctly.
 107                                            */
 108                                 struct
 109                                 {
 110                                         uint8_t  RNDISMessageBuffer[RNDIS_MESSAGE_BUFFER_SIZE]; /**< Buffer to hold RNDIS messages to and from the host,
 111                                                                                                                                                          *   managed by the class driver.
 112                                                                                                                                                          */
 113                                         bool     ResponseReady; /**< Internal flag indicating if a RNDIS message is waiting to be returned to the host. */
 114                                         uint8_t  CurrRNDISState; /**< Current RNDIS state of the adapter, a value from the \ref RNDIS_States_t enum. */
 115                                         uint32_t CurrPacketFilter; /**< Current packet filter mode, used internally by the class driver. */
 116                                         Ethernet_Frame_Info_t FrameIN; /**< Structure holding the last received Ethernet frame from the host, for user
 117                                                                                                         *   processing.
 118                                                                                                         */
 119                                         Ethernet_Frame_Info_t FrameOUT; /**< Structure holding the next Ethernet frame to send to the host, populated by the
 120                                                                                                          *   user application.
 121                                                                                                          */
 122                                 } State; /**< State data for the USB class interface within the device. All elements in this section
 123                                           *   are reset to their defaults when the interface is enumerated.
 124                                           */
 125                         } USB_ClassInfo_RNDIS_Device_t;
 126
 127                 /* Function Prototypes: */
 128                         /** Configures the endpoints of a given RNDIS interface, ready for use. This should be linked to the library
 129                          *  \ref EVENT_USB_Device_ConfigurationChanged() event so that the endpoints are configured when the configuration
 130                          *  containing the given HID interface is selected.
 131                          *
 132                          *  \note The endpoint index numbers as given in the interface's configuration structure must not overlap with any other
 133                          *        interface, or endpoint bank corruption will occur. Gaps in the allocated endpoint numbers or non-sequential indexes
 134                          *        within a single interface is allowed, but no two interfaces of any type have have interleaved endpoint indexes.
 135                          *
 136                          *  \param[in,out] RNDISInterfaceInfo  Pointer to a structure containing a RNDIS Class configuration and state.
 137                          *
 138                          *  \return Boolean \c true if the endpoints were successfully configured, \c false otherwise.
 139                          */
 140                         bool RNDIS_Device_ConfigureEndpoints(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 141
 142                         /** Processes incoming control requests from the host, that are directed to the given RNDIS class interface. This should be
 143                          *  linked to the library \ref EVENT_USB_Device_ControlRequest() event.
 144                          *
 145                          *  \param[in,out] RNDISInterfaceInfo  Pointer to a structure containing a RNDIS Class configuration and state.
 146                          */
 147                         void RNDIS_Device_ProcessControlRequest(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 148
 149                         /** General management task for a given HID class interface, required for the correct operation of the interface. This should
 150                          *  be called frequently in the main program loop, before the master USB management task \ref USB_USBTask().
 151                          *
 152                          *  \param[in,out] RNDISInterfaceInfo  Pointer to a structure containing a RNDIS Class configuration and state.
 153                          */
 154                         void RNDIS_Device_USBTask(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 155
 156         /* Private Interface - For use in library only: */
 157         #if !defined(__DOXYGEN__)
 158                 /* Function Prototypes: */
 159                 #if defined(__INCLUDE_FROM_RNDIS_DEVICE_C)
 160                         static void RNDIS_Device_ProcessRNDISControlMessage(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo)
 161                                                                             ATTR_NON_NULL_PTR_ARG(1);
 162                         static bool RNDIS_Device_ProcessNDISQuery(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo,
 163                                                                   const uint32_t OId,
 164                                                       void* const QueryData,
 165                                                       const uint16_t QuerySize,
 166                                                                                               void* ResponseData,
 167                                                       uint16_t* const ResponseSize) ATTR_NON_NULL_PTR_ARG(1)
 168                                                                   ATTR_NON_NULL_PTR_ARG(5) ATTR_NON_NULL_PTR_ARG(6);
 169                         static bool RNDIS_Device_ProcessNDISSet(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo,
 170                                                     const uint32_t OId,
 171                                                                 const void* SetData,
 172                                                     const uint16_t SetSize) ATTR_NON_NULL_PTR_ARG(1)
 173                                                                 ATTR_NON_NULL_PTR_ARG(3);
 174                 #endif
 175
 176         #endif
 177
 178         /* Disable C linkage for C++ Compilers: */
 179                 #if defined(__cplusplus)
 180                         }
 181                 #endif
 182
 183 #endif
 184
 185 /** @} */
 186