476 lines
		
	
	
	
		
			16 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			476 lines
		
	
	
	
		
			16 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|              LUFA Library
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|      Copyright (C) Dean Camera, 2017.
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| 
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|   dean [at] fourwalledcubicle [dot] com
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|            www.lufa-lib.org
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| */
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| 
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| /*
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|   Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
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| 
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|   Permission to use, copy, modify, distribute, and sell this
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|   software and its documentation for any purpose is hereby granted
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|   without fee, provided that the above copyright notice appear in
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|   all copies and that both that the copyright notice and this
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|   permission notice and warranty disclaimer appear in supporting
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|   documentation, and that the name of the author not be used in
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|   advertising or publicity pertaining to distribution of the
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|   software without specific, written prior permission.
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| 
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|   The author disclaims all warranties with regard to this
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|   software, including all implied warranties of merchantability
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|   and fitness.  In no event shall the author be liable for any
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|   special, indirect or consequential damages or any damages
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|   whatsoever resulting from loss of use, data or profits, whether
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|   in an action of contract, negligence or other tortious action,
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|   arising out of or in connection with the use or performance of
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|   this software.
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| */
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| 
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| #define  __INCLUDE_FROM_USB_DRIVER
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| #include "../../Core/USBMode.h"
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| 
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| #if defined(USB_CAN_BE_HOST)
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| 
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| #define  __INCLUDE_FROM_RNDIS_DRIVER
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| #define  __INCLUDE_FROM_RNDIS_HOST_C
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| #include "RNDISClassHost.h"
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| 
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| uint8_t RNDIS_Host_ConfigurePipes(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,
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|                                   uint16_t ConfigDescriptorSize,
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|                                   void* ConfigDescriptorData)
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| {
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| 	USB_Descriptor_Endpoint_t*  DataINEndpoint        = NULL;
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| 	USB_Descriptor_Endpoint_t*  DataOUTEndpoint       = NULL;
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| 	USB_Descriptor_Endpoint_t*  NotificationEndpoint  = NULL;
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| 	USB_Descriptor_Interface_t* RNDISControlInterface = NULL;
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| 
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| 	memset(&RNDISInterfaceInfo->State, 0x00, sizeof(RNDISInterfaceInfo->State));
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| 
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| 	if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
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| 	  return RNDIS_ENUMERROR_InvalidConfigDescriptor;
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| 
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| 	RNDISControlInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
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| 
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| 	while (!(DataINEndpoint) || !(DataOUTEndpoint) || !(NotificationEndpoint))
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| 	{
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| 		if (!(RNDISControlInterface) ||
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| 		    USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
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| 		                              DCOMP_RNDIS_Host_NextRNDISInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
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| 		{
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| 			if (NotificationEndpoint)
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| 			{
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| 				if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
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| 											  DCOMP_RNDIS_Host_NextRNDISDataInterface) != DESCRIPTOR_SEARCH_COMP_Found)
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| 				{
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| 					return RNDIS_ENUMERROR_NoCompatibleInterfaceFound;
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| 				}
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| 
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| 				DataINEndpoint  = NULL;
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| 				DataOUTEndpoint = NULL;
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| 			}
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| 			else
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| 			{
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| 				if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
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| 											  DCOMP_RNDIS_Host_NextRNDISControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)
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| 				{
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| 					return RNDIS_ENUMERROR_NoCompatibleInterfaceFound;
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| 				}
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| 
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| 				RNDISControlInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
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| 
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| 				NotificationEndpoint = NULL;
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| 			}
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| 
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| 			continue;
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| 		}
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| 
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| 		USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
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| 
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| 		if ((EndpointData->EndpointAddress & ENDPOINT_DIR_MASK) == ENDPOINT_DIR_IN)
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| 		{
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| 			if ((EndpointData->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT)
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| 			  NotificationEndpoint = EndpointData;
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| 			else
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| 			  DataINEndpoint = EndpointData;
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| 		}
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| 		else
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| 		{
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| 			DataOUTEndpoint = EndpointData;
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| 		}
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| 	}
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| 
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| 	RNDISInterfaceInfo->Config.DataINPipe.Size  = le16_to_cpu(DataINEndpoint->EndpointSize);
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| 	RNDISInterfaceInfo->Config.DataINPipe.EndpointAddress = DataINEndpoint->EndpointAddress;
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| 	RNDISInterfaceInfo->Config.DataINPipe.Type  = EP_TYPE_BULK;
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| 
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| 	RNDISInterfaceInfo->Config.DataOUTPipe.Size = le16_to_cpu(DataOUTEndpoint->EndpointSize);
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| 	RNDISInterfaceInfo->Config.DataOUTPipe.EndpointAddress = DataOUTEndpoint->EndpointAddress;
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| 	RNDISInterfaceInfo->Config.DataOUTPipe.Type = EP_TYPE_BULK;
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| 
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| 	RNDISInterfaceInfo->Config.NotificationPipe.Size = le16_to_cpu(NotificationEndpoint->EndpointSize);
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| 	RNDISInterfaceInfo->Config.NotificationPipe.EndpointAddress = NotificationEndpoint->EndpointAddress;
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| 	RNDISInterfaceInfo->Config.NotificationPipe.Type = EP_TYPE_INTERRUPT;
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| 
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| 	if (!(Pipe_ConfigurePipeTable(&RNDISInterfaceInfo->Config.DataINPipe, 1)))
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| 	  return RNDIS_ENUMERROR_PipeConfigurationFailed;
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| 
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| 	if (!(Pipe_ConfigurePipeTable(&RNDISInterfaceInfo->Config.DataOUTPipe, 1)))
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| 	  return RNDIS_ENUMERROR_PipeConfigurationFailed;
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| 
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| 	if (!(Pipe_ConfigurePipeTable(&RNDISInterfaceInfo->Config.NotificationPipe, 1)))
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| 	  return RNDIS_ENUMERROR_PipeConfigurationFailed;
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| 
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| 	RNDISInterfaceInfo->State.ControlInterfaceNumber = RNDISControlInterface->InterfaceNumber;
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| 	RNDISInterfaceInfo->State.IsActive = true;
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| 
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| 	return RNDIS_ENUMERROR_NoError;
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| }
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| 
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| static uint8_t DCOMP_RNDIS_Host_NextRNDISControlInterface(void* const CurrentDescriptor)
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| {
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| 	USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
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| 
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| 	if (Header->Type == DTYPE_Interface)
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| 	{
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| 		USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);
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| 
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| 		if ((Interface->Class    == CDC_CSCP_CDCClass)    &&
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| 		    (Interface->SubClass == CDC_CSCP_ACMSubclass) &&
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| 		    (Interface->Protocol == CDC_CSCP_VendorSpecificProtocol))
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| 		{
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| 			return DESCRIPTOR_SEARCH_Found;
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| 		}
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| 	}
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| 
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| 	return DESCRIPTOR_SEARCH_NotFound;
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| }
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| 
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| static uint8_t DCOMP_RNDIS_Host_NextRNDISDataInterface(void* const CurrentDescriptor)
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| {
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| 	USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
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| 
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| 	if (Header->Type == DTYPE_Interface)
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| 	{
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| 		USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor,
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| 		                                                         USB_Descriptor_Interface_t);
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| 
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| 		if ((Interface->Class    == CDC_CSCP_CDCDataClass)   &&
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| 		    (Interface->SubClass == CDC_CSCP_NoDataSubclass) &&
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| 		    (Interface->Protocol == CDC_CSCP_NoDataProtocol))
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| 		{
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| 			return DESCRIPTOR_SEARCH_Found;
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| 		}
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| 	}
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| 
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| 	return DESCRIPTOR_SEARCH_NotFound;
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| }
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| 
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| static uint8_t DCOMP_RNDIS_Host_NextRNDISInterfaceEndpoint(void* const CurrentDescriptor)
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| {
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| 	USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
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| 
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| 	if (Header->Type == DTYPE_Endpoint)
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| 	{
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| 		USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t);
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| 
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| 		uint8_t EndpointType = (Endpoint->Attributes & EP_TYPE_MASK);
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| 
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| 		if (((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT)) &&
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| 		    !(Pipe_IsEndpointBound(Endpoint->EndpointAddress)))
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| 		{
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| 			return DESCRIPTOR_SEARCH_Found;
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| 		}
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| 	}
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| 	else if (Header->Type == DTYPE_Interface)
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| 	{
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| 		return DESCRIPTOR_SEARCH_Fail;
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| 	}
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| 
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| 	return DESCRIPTOR_SEARCH_NotFound;
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| }
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| 
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| static uint8_t RNDIS_SendEncapsulatedCommand(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,
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|                                              void* Buffer,
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|                                              const uint16_t Length)
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| {
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| 	USB_ControlRequest = (USB_Request_Header_t)
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| 		{
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| 			.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
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| 			.bRequest      = RNDIS_REQ_SendEncapsulatedCommand,
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| 			.wValue        = 0,
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| 			.wIndex        = RNDISInterfaceInfo->State.ControlInterfaceNumber,
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| 			.wLength       = Length,
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| 		};
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| 
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| 	Pipe_SelectPipe(PIPE_CONTROLPIPE);
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| 
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| 	return USB_Host_SendControlRequest(Buffer);
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| }
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| 
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| static uint8_t RNDIS_GetEncapsulatedResponse(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,
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|                                              void* Buffer,
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|                                              const uint16_t Length)
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| {
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| 	USB_ControlRequest = (USB_Request_Header_t)
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| 		{
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| 			.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
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| 			.bRequest      = RNDIS_REQ_GetEncapsulatedResponse,
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| 			.wValue        = 0,
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| 			.wIndex        = RNDISInterfaceInfo->State.ControlInterfaceNumber,
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| 			.wLength       = Length,
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| 		};
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| 
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| 	Pipe_SelectPipe(PIPE_CONTROLPIPE);
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| 
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| 	return USB_Host_SendControlRequest(Buffer);
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| }
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| 
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| uint8_t RNDIS_Host_SendKeepAlive(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo)
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| {
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| 	uint8_t ErrorCode;
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| 
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| 	RNDIS_KeepAlive_Message_t  KeepAliveMessage;
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| 	RNDIS_KeepAlive_Complete_t KeepAliveMessageResponse;
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| 
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| 	KeepAliveMessage.MessageType     = CPU_TO_LE32(REMOTE_NDIS_KEEPALIVE_MSG);
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| 	KeepAliveMessage.MessageLength   = CPU_TO_LE32(sizeof(RNDIS_KeepAlive_Message_t));
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| 	KeepAliveMessage.RequestId       = cpu_to_le32(RNDISInterfaceInfo->State.RequestID++);
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| 
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| 	if ((ErrorCode = RNDIS_SendEncapsulatedCommand(RNDISInterfaceInfo, &KeepAliveMessage,
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| 	                                               sizeof(RNDIS_KeepAlive_Message_t))) != HOST_SENDCONTROL_Successful)
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| 	{
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| 		return ErrorCode;
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| 	}
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| 
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| 	if ((ErrorCode = RNDIS_GetEncapsulatedResponse(RNDISInterfaceInfo, &KeepAliveMessageResponse,
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| 	                                               sizeof(RNDIS_KeepAlive_Complete_t))) != HOST_SENDCONTROL_Successful)
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| 	{
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| 		return ErrorCode;
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| 	}
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| 
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| 	return HOST_SENDCONTROL_Successful;
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| }
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| 
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| uint8_t RNDIS_Host_InitializeDevice(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo)
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| {
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| 	uint8_t ErrorCode;
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| 
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| 	RNDIS_Initialize_Message_t  InitMessage;
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| 	RNDIS_Initialize_Complete_t InitMessageResponse;
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| 
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| 	InitMessage.MessageType     = CPU_TO_LE32(REMOTE_NDIS_INITIALIZE_MSG);
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| 	InitMessage.MessageLength   = CPU_TO_LE32(sizeof(RNDIS_Initialize_Message_t));
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| 	InitMessage.RequestId       = cpu_to_le32(RNDISInterfaceInfo->State.RequestID++);
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| 
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| 	InitMessage.MajorVersion    = CPU_TO_LE32(REMOTE_NDIS_VERSION_MAJOR);
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| 	InitMessage.MinorVersion    = CPU_TO_LE32(REMOTE_NDIS_VERSION_MINOR);
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| 	InitMessage.MaxTransferSize = cpu_to_le32(RNDISInterfaceInfo->Config.HostMaxPacketSize);
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| 
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| 	if ((ErrorCode = RNDIS_SendEncapsulatedCommand(RNDISInterfaceInfo, &InitMessage,
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| 	                                               sizeof(RNDIS_Initialize_Message_t))) != HOST_SENDCONTROL_Successful)
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| 	{
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| 		return ErrorCode;
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| 	}
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| 
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| 	if ((ErrorCode = RNDIS_GetEncapsulatedResponse(RNDISInterfaceInfo, &InitMessageResponse,
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| 	                                               sizeof(RNDIS_Initialize_Complete_t))) != HOST_SENDCONTROL_Successful)
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| 	{
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| 		return ErrorCode;
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| 	}
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| 
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| 	if (InitMessageResponse.Status != CPU_TO_LE32(REMOTE_NDIS_STATUS_SUCCESS))
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| 	  return RNDIS_ERROR_LOGICAL_CMD_FAILED;
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| 
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| 	RNDISInterfaceInfo->State.DeviceMaxPacketSize = le32_to_cpu(InitMessageResponse.MaxTransferSize);
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| 
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| 	return HOST_SENDCONTROL_Successful;
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| }
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| 
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| uint8_t RNDIS_Host_SetRNDISProperty(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,
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|                                     const uint32_t Oid,
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|                                     void* Buffer,
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|                                     const uint16_t Length)
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| {
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| 	uint8_t ErrorCode;
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| 
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| 	struct
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| 	{
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| 		RNDIS_Set_Message_t SetMessage;
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| 		uint8_t             ContiguousBuffer[Length];
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| 	} SetMessageData;
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| 
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| 	RNDIS_Set_Complete_t SetMessageResponse;
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| 
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| 	SetMessageData.SetMessage.MessageType    = CPU_TO_LE32(REMOTE_NDIS_SET_MSG);
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| 	SetMessageData.SetMessage.MessageLength  = cpu_to_le32(sizeof(RNDIS_Set_Message_t) + Length);
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| 	SetMessageData.SetMessage.RequestId      = cpu_to_le32(RNDISInterfaceInfo->State.RequestID++);
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| 
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| 	SetMessageData.SetMessage.Oid            = cpu_to_le32(Oid);
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| 	SetMessageData.SetMessage.InformationBufferLength = cpu_to_le32(Length);
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| 	SetMessageData.SetMessage.InformationBufferOffset = CPU_TO_LE32(sizeof(RNDIS_Set_Message_t) - sizeof(RNDIS_Message_Header_t));
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| 	SetMessageData.SetMessage.DeviceVcHandle = CPU_TO_LE32(0);
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| 
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| 	memcpy(&SetMessageData.ContiguousBuffer, Buffer, Length);
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| 
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| 	if ((ErrorCode = RNDIS_SendEncapsulatedCommand(RNDISInterfaceInfo, &SetMessageData,
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| 	                                               (sizeof(RNDIS_Set_Message_t) + Length))) != HOST_SENDCONTROL_Successful)
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| 	{
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| 		return ErrorCode;
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| 	}
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| 
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| 	if ((ErrorCode = RNDIS_GetEncapsulatedResponse(RNDISInterfaceInfo, &SetMessageResponse,
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| 	                                               sizeof(RNDIS_Set_Complete_t))) != HOST_SENDCONTROL_Successful)
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| 	{
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| 		return ErrorCode;
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| 	}
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| 
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| 	if (SetMessageResponse.Status != CPU_TO_LE32(REMOTE_NDIS_STATUS_SUCCESS))
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| 	  return RNDIS_ERROR_LOGICAL_CMD_FAILED;
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| 
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| 	return HOST_SENDCONTROL_Successful;
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| }
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| 
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| uint8_t RNDIS_Host_QueryRNDISProperty(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,
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|                                       const uint32_t Oid,
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|                                       void* Buffer,
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|                                       const uint16_t MaxLength)
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| {
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| 	uint8_t ErrorCode;
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| 
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| 	RNDIS_Query_Message_t QueryMessage;
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| 
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| 	struct
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| 	{
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| 		RNDIS_Query_Complete_t QueryMessageResponse;
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| 		uint8_t                ContiguousBuffer[MaxLength];
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| 	} QueryMessageResponseData;
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| 
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| 	QueryMessage.MessageType    = CPU_TO_LE32(REMOTE_NDIS_QUERY_MSG);
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| 	QueryMessage.MessageLength  = CPU_TO_LE32(sizeof(RNDIS_Query_Message_t));
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| 	QueryMessage.RequestId      = cpu_to_le32(RNDISInterfaceInfo->State.RequestID++);
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| 
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| 	QueryMessage.Oid            = cpu_to_le32(Oid);
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| 	QueryMessage.InformationBufferLength = CPU_TO_LE32(0);
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| 	QueryMessage.InformationBufferOffset = CPU_TO_LE32(0);
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| 	QueryMessage.DeviceVcHandle = CPU_TO_LE32(0);
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| 
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| 	if ((ErrorCode = RNDIS_SendEncapsulatedCommand(RNDISInterfaceInfo, &QueryMessage,
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| 	                                               sizeof(RNDIS_Query_Message_t))) != HOST_SENDCONTROL_Successful)
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| 	{
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| 		return ErrorCode;
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| 	}
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| 
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| 	if ((ErrorCode = RNDIS_GetEncapsulatedResponse(RNDISInterfaceInfo, &QueryMessageResponseData,
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| 	                                               sizeof(QueryMessageResponseData))) != HOST_SENDCONTROL_Successful)
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| 	{
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| 		return ErrorCode;
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| 	}
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| 
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| 	if (QueryMessageResponseData.QueryMessageResponse.Status != CPU_TO_LE32(REMOTE_NDIS_STATUS_SUCCESS))
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| 	  return RNDIS_ERROR_LOGICAL_CMD_FAILED;
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| 
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| 	memcpy(Buffer, &QueryMessageResponseData.ContiguousBuffer, MaxLength);
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| 
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| 	return HOST_SENDCONTROL_Successful;
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| }
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| 
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| bool RNDIS_Host_IsPacketReceived(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo)
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| {
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| 	bool PacketWaiting;
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| 
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| 	if ((USB_HostState != HOST_STATE_Configured) || !(RNDISInterfaceInfo->State.IsActive))
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| 	  return false;
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| 
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| 	Pipe_SelectPipe(RNDISInterfaceInfo->Config.DataINPipe.Address);
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| 
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| 	Pipe_Unfreeze();
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| 	PacketWaiting = Pipe_IsINReceived();
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| 	Pipe_Freeze();
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| 
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| 	return PacketWaiting;
 | |
| }
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| 
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| uint8_t RNDIS_Host_ReadPacket(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,
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|                               void* Buffer,
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|                               uint16_t* const PacketLength)
 | |
| {
 | |
| 	uint8_t ErrorCode;
 | |
| 
 | |
| 	if ((USB_HostState != HOST_STATE_Configured) || !(RNDISInterfaceInfo->State.IsActive))
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| 	  return PIPE_READYWAIT_DeviceDisconnected;
 | |
| 
 | |
| 	Pipe_SelectPipe(RNDISInterfaceInfo->Config.DataINPipe.Address);
 | |
| 	Pipe_Unfreeze();
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| 
 | |
| 	if (!(Pipe_IsReadWriteAllowed()))
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| 	{
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| 		if (Pipe_IsINReceived())
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| 		  Pipe_ClearIN();
 | |
| 
 | |
| 		*PacketLength = 0;
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| 		Pipe_Freeze();
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| 		return PIPE_RWSTREAM_NoError;
 | |
| 	}
 | |
| 
 | |
| 	RNDIS_Packet_Message_t DeviceMessage;
 | |
| 
 | |
| 	if ((ErrorCode = Pipe_Read_Stream_LE(&DeviceMessage, sizeof(RNDIS_Packet_Message_t),
 | |
| 	                                     NULL)) != PIPE_RWSTREAM_NoError)
 | |
| 	{
 | |
| 		return ErrorCode;
 | |
| 	}
 | |
| 
 | |
| 	*PacketLength = (uint16_t)le32_to_cpu(DeviceMessage.DataLength);
 | |
| 
 | |
| 	Pipe_Discard_Stream(le32_to_cpu(DeviceMessage.DataOffset) -
 | |
| 	                    (sizeof(RNDIS_Packet_Message_t) - sizeof(RNDIS_Message_Header_t)),
 | |
| 	                    NULL);
 | |
| 
 | |
| 	Pipe_Read_Stream_LE(Buffer, *PacketLength, NULL);
 | |
| 
 | |
| 	if (!(Pipe_BytesInPipe()))
 | |
| 	  Pipe_ClearIN();
 | |
| 
 | |
| 	Pipe_Freeze();
 | |
| 
 | |
| 	return PIPE_RWSTREAM_NoError;
 | |
| }
 | |
| 
 | |
| uint8_t RNDIS_Host_SendPacket(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,
 | |
|                               void* Buffer,
 | |
|                               const uint16_t PacketLength)
 | |
| {
 | |
| 	uint8_t ErrorCode;
 | |
| 
 | |
| 	if ((USB_HostState != HOST_STATE_Configured) || !(RNDISInterfaceInfo->State.IsActive))
 | |
| 	  return PIPE_READYWAIT_DeviceDisconnected;
 | |
| 
 | |
| 	RNDIS_Packet_Message_t DeviceMessage;
 | |
| 
 | |
| 	memset(&DeviceMessage, 0, sizeof(RNDIS_Packet_Message_t));
 | |
| 	DeviceMessage.MessageType   = CPU_TO_LE32(REMOTE_NDIS_PACKET_MSG);
 | |
| 	DeviceMessage.MessageLength = CPU_TO_LE32(sizeof(RNDIS_Packet_Message_t) + PacketLength);
 | |
| 	DeviceMessage.DataOffset    = CPU_TO_LE32(sizeof(RNDIS_Packet_Message_t) - sizeof(RNDIS_Message_Header_t));
 | |
| 	DeviceMessage.DataLength    = cpu_to_le32(PacketLength);
 | |
| 
 | |
| 	Pipe_SelectPipe(RNDISInterfaceInfo->Config.DataOUTPipe.Address);
 | |
| 	Pipe_Unfreeze();
 | |
| 
 | |
| 	if ((ErrorCode = Pipe_Write_Stream_LE(&DeviceMessage, sizeof(RNDIS_Packet_Message_t),
 | |
| 	                                      NULL)) != PIPE_RWSTREAM_NoError)
 | |
| 	{
 | |
| 		return ErrorCode;
 | |
| 	}
 | |
| 
 | |
| 	Pipe_Write_Stream_LE(Buffer, PacketLength, NULL);
 | |
| 	Pipe_ClearOUT();
 | |
| 
 | |
| 	Pipe_Freeze();
 | |
| 
 | |
| 	return PIPE_RWSTREAM_NoError;
 | |
| }
 | |
| 
 | |
| #endif
 | |
| 
 | 
