3 Copyright (C) Dean Camera, 2012.
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5 dean [at] fourwalledcubicle [dot] com
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10 Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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12 Permission to use, copy, modify, distribute, and sell this
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13 software and its documentation for any purpose is hereby granted
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14 without fee, provided that the above copyright notice appear in
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15 all copies and that both that the copyright notice and this
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16 permission notice and warranty disclaimer appear in supporting
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17 documentation, and that the name of the author not be used in
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18 advertising or publicity pertaining to distribution of the
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19 software without specific, written prior permission.
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21 The author disclaim all warranties with regard to this
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22 software, including all implied warranties of merchantability
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23 and fitness. In no event shall the author be liable for any
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24 special, indirect or consequential damages or any damages
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25 whatsoever resulting from loss of use, data or profits, whether
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26 in an action of contract, negligence or other tortious action,
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27 arising out of or in connection with the use or performance of
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32 * \brief Device mode driver for the library USB RNDIS Class driver.
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34 * Device mode driver for the library USB RNDIS Class driver.
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36 * \note This file should not be included directly. It is automatically included as needed by the USB module driver
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37 * dispatch header located in LUFA/Drivers/USB.h.
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40 /** \ingroup Group_USBClassRNDIS
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41 * \defgroup Group_USBClassRNDISDevice RNDIS Class Device Mode Driver
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43 * \section Sec_Dependencies Module Source Dependencies
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44 * The following files must be built with any user project that uses this module:
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45 * - LUFA/Drivers/USB/Class/Device/RNDISClassDevice.c <i>(Makefile source module name: LUFA_SRC_USBCLASS)</i>
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47 * \section Sec_ModDescription Module Description
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48 * Device Mode USB Class driver framework interface, for the RNDIS USB Class driver.
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53 #ifndef _RNDIS_CLASS_DEVICE_H_
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54 #define _RNDIS_CLASS_DEVICE_H_
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57 #include "../../USB.h"
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58 #include "../Common/RNDISClassCommon.h"
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60 /* Enable C linkage for C++ Compilers: */
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61 #if defined(__cplusplus)
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65 /* Preprocessor Checks: */
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66 #if !defined(__INCLUDE_FROM_RNDIS_DRIVER)
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67 #error Do not include this file directly. Include LUFA/Drivers/USB.h instead.
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70 /* Public Interface - May be used in end-application: */
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72 /** \brief RNDIS Class Device Mode Configuration and State Structure.
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74 * Class state structure. An instance of this structure should be made for each RNDIS interface
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75 * within the user application, and passed to each of the RNDIS class driver functions as the
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76 * \c RNDISInterfaceInfo parameter. This stores each RNDIS interface's configuration and state information.
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82 uint8_t ControlInterfaceNumber; /**< Interface number of the RNDIS control interface within the device. */
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84 USB_Endpoint_Table_t DataINEndpoint; /**< Data IN endpoint configuration table. */
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85 USB_Endpoint_Table_t DataOUTEndpoint; /**< Data OUT endpoint configuration table. */
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86 USB_Endpoint_Table_t NotificationEndpoint; /**< Notification IN Endpoint configuration table. */
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88 char* AdapterVendorDescription; /**< String description of the adapter vendor. */
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89 MAC_Address_t AdapterMACAddress; /**< MAC address of the adapter. */
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90 } Config; /**< Config data for the USB class interface within the device. All elements in this section
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91 * <b>must</b> be set or the interface will fail to enumerate and operate correctly.
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95 uint8_t RNDISMessageBuffer[RNDIS_MESSAGE_BUFFER_SIZE]; /**< Buffer to hold RNDIS messages to and from the host,
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96 * managed by the class driver.
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98 bool ResponseReady; /**< Internal flag indicating if a RNDIS message is waiting to be returned to the host. */
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99 uint8_t CurrRNDISState; /**< Current RNDIS state of the adapter, a value from the \ref RNDIS_States_t enum. */
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100 uint32_t CurrPacketFilter; /**< Current packet filter mode, used internally by the class driver. */
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101 } State; /**< State data for the USB class interface within the device. All elements in this section
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102 * are reset to their defaults when the interface is enumerated.
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104 } USB_ClassInfo_RNDIS_Device_t;
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106 /* Function Prototypes: */
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107 /** Configures the endpoints of a given RNDIS interface, ready for use. This should be linked to the library
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108 * \ref EVENT_USB_Device_ConfigurationChanged() event so that the endpoints are configured when the configuration
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109 * containing the given RNDIS interface is selected.
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111 * \param[in,out] RNDISInterfaceInfo Pointer to a structure containing a RNDIS Class configuration and state.
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113 * \return Boolean \c true if the endpoints were successfully configured, \c false otherwise.
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115 bool RNDIS_Device_ConfigureEndpoints(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
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117 /** Processes incoming control requests from the host, that are directed to the given RNDIS class interface. This should be
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118 * linked to the library \ref EVENT_USB_Device_ControlRequest() event.
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120 * \param[in,out] RNDISInterfaceInfo Pointer to a structure containing a RNDIS Class configuration and state.
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122 void RNDIS_Device_ProcessControlRequest(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
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124 /** General management task for a given RNDIS class interface, required for the correct operation of the interface. This should
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125 * be called frequently in the main program loop, before the master USB management task \ref USB_USBTask().
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127 * \param[in,out] RNDISInterfaceInfo Pointer to a structure containing a RNDIS Class configuration and state.
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129 void RNDIS_Device_USBTask(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
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131 /** Determines if a packet is currently waiting for the device to read in and process.
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133 * \pre This function must only be called when the Device state machine is in the \ref DEVICE_STATE_Configured state or the
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136 * \param[in,out] RNDISInterfaceInfo Pointer to a structure containing an RNDIS Class configuration and state.
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138 * \return Boolean \c true if a packet is waiting to be read in by the host, \c false otherwise.
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140 bool RNDIS_Device_IsPacketReceived(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo);
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142 /** Retrieves the next pending packet from the device, discarding the remainder of the RNDIS packet header to leave
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143 * only the packet contents for processing by the device in the nominated buffer.
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145 * \pre This function must only be called when the Device state machine is in the \ref DEVICE_STATE_Configured state or the
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148 * \param[in,out] RNDISInterfaceInfo Pointer to a structure containing an RNDIS Class configuration and state.
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149 * \param[out] Buffer Pointer to a buffer where the packer data is to be written to.
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150 * \param[out] PacketLength Pointer to where the length in bytes of the read packet is to be stored.
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152 * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
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154 uint8_t RNDIS_Device_ReadPacket(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo,
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156 uint16_t* const PacketLength);
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158 /** Sends the given packet to the attached RNDIS device, after adding a RNDIS packet message header.
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160 * \pre This function must only be called when the Device state machine is in the \ref DEVICE_STATE_Configured state or the
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163 * \param[in,out] RNDISInterfaceInfo Pointer to a structure containing an RNDIS Class configuration and state.
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164 * \param[in] Buffer Pointer to a buffer where the packer data is to be read from.
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165 * \param[in] PacketLength Length in bytes of the packet to send.
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167 * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
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169 uint8_t RNDIS_Device_SendPacket(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo,
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171 const uint16_t PacketLength);
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173 /* Private Interface - For use in library only: */
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174 #if !defined(__DOXYGEN__)
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175 /* Function Prototypes: */
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176 #if defined(__INCLUDE_FROM_RNDIS_DEVICE_C)
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177 static void RNDIS_Device_ProcessRNDISControlMessage(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo)
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178 ATTR_NON_NULL_PTR_ARG(1);
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179 static bool RNDIS_Device_ProcessNDISQuery(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo,
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180 const uint32_t OId,
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181 void* const QueryData,
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182 const uint16_t QuerySize,
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183 void* ResponseData,
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184 uint16_t* const ResponseSize) ATTR_NON_NULL_PTR_ARG(1)
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185 ATTR_NON_NULL_PTR_ARG(5) ATTR_NON_NULL_PTR_ARG(6);
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186 static bool RNDIS_Device_ProcessNDISSet(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo,
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187 const uint32_t OId,
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188 const void* SetData,
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189 const uint16_t SetSize) ATTR_NON_NULL_PTR_ARG(1)
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190 ATTR_NON_NULL_PTR_ARG(3);
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195 /* Disable C linkage for C++ Compilers: */
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196 #if defined(__cplusplus)
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