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			604 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|              LUFA Library
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|      Copyright (C) Dean Camera, 2009.
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|               
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|   dean [at] fourwalledcubicle [dot] com
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|       www.fourwalledcubicle.com
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| */
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| 
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| /*
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|   Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
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| 
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|   Permission to use, copy, modify, and distribute this software
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|   and its documentation for any purpose and without fee is hereby
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|   granted, provided that the above copyright notice appear in all
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|   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 disclaim 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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| #include "../../HighLevel/USBMode.h"
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| #if defined(USB_CAN_BE_HOST)
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| 
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| #define INCLUDE_FROM_MS_CLASS_HOST_C
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| #include "MassStorage.h"
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| 
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| uint8_t MS_Host_ConfigurePipes(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, uint16_t ConfigDescriptorSize,
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| 							   void* DeviceConfigDescriptor)
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| {
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| 	uint8_t FoundEndpoints = 0;
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| 	
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| 	memset(&MSInterfaceInfo->State, 0x00, sizeof(MSInterfaceInfo->State));
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| 
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| 	if (DESCRIPTOR_TYPE(DeviceConfigDescriptor) != DTYPE_Configuration)
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| 	  return MS_ENUMERROR_InvalidConfigDescriptor;
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| 	
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| 	if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &DeviceConfigDescriptor,
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| 	                              DComp_NextMSInterface) != DESCRIPTOR_SEARCH_COMP_Found)
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| 	{
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| 		return MS_ENUMERROR_NoMSInterfaceFound;
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| 	}
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| 
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| 	MSInterfaceInfo->State.InterfaceNumber = DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Interface_t)->InterfaceNumber;
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| 	
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| 	while (FoundEndpoints != (MS_FOUND_DATAPIPE_IN | MS_FOUND_DATAPIPE_OUT))
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| 	{
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| 		if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &DeviceConfigDescriptor,
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| 		                              DComp_NextMSInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
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| 		{
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| 			return MS_ENUMERROR_EndpointsNotFound;
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| 		}
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| 		
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| 		USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Endpoint_t);
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| 
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| 		if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
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| 		{
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| 			Pipe_ConfigurePipe(MSInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN,
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| 			                   EndpointData->EndpointAddress, EndpointData->EndpointSize,
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| 			                   MSInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
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| 			MSInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize;
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| 
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| 			FoundEndpoints |= MS_FOUND_DATAPIPE_IN;
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| 		}
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| 		else
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| 		{
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| 			Pipe_ConfigurePipe(MSInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT,
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| 			                   EndpointData->EndpointAddress, EndpointData->EndpointSize,
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| 			                   MSInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
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| 			MSInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize;
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| 
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| 			FoundEndpoints |= MS_FOUND_DATAPIPE_OUT;
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| 		}		
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| 	}
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| 
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| 	MSInterfaceInfo->State.IsActive = true;
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| 	return MS_ENUMERROR_NoError;
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| }
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| 
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| static uint8_t DComp_NextMSInterface(void* const CurrentDescriptor)
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| {
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| 	if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
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| 	{
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| 		USB_Descriptor_Interface_t* CurrentInterface = DESCRIPTOR_PCAST(CurrentDescriptor,
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| 		                                                                USB_Descriptor_Interface_t);
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| 
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| 		if ((CurrentInterface->Class    == MASS_STORE_CLASS)    &&
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| 		    (CurrentInterface->SubClass == MASS_STORE_SUBCLASS) &&
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| 		    (CurrentInterface->Protocol == MASS_STORE_PROTOCOL))
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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_NextMSInterfaceEndpoint(void* const CurrentDescriptor)
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| {
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| 	if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
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| 	{
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| 		USB_Descriptor_Endpoint_t* CurrentEndpoint = DESCRIPTOR_PCAST(CurrentDescriptor,
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| 		                                                              USB_Descriptor_Endpoint_t);
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| 
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| 		uint8_t EndpointType = (CurrentEndpoint->Attributes & EP_TYPE_MASK);
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| 
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| 		if ((EndpointType == EP_TYPE_BULK) &&
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| 		    (!(Pipe_IsEndpointBound(CurrentEndpoint->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 (DESCRIPTOR_TYPE(CurrentDescriptor) == 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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| void MS_Host_USBTask(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo)
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| {
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| 	(void)MSInterfaceInfo;
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| }
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| 
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| static uint8_t MS_Host_SendCommand(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, MS_CommandBlockWrapper_t* const SCSICommandBlock,
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|                                    void* BufferPtr)
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| {
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| 	uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
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| 
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| 	SCSICommandBlock->Tag = ++MSInterfaceInfo->State.TransactionTag;
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| 
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| 	if (MSInterfaceInfo->State.TransactionTag == 0xFFFFFFFF)
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| 	  MSInterfaceInfo->State.TransactionTag = 1;
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| 
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| 	Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber);
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| 	Pipe_Unfreeze();
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| 
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| 	if ((ErrorCode = Pipe_Write_Stream_LE(SCSICommandBlock, sizeof(MS_CommandBlockWrapper_t),
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| 	                                      NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)
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| 	  return ErrorCode;
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| 
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| 	Pipe_ClearOUT();
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| 	Pipe_WaitUntilReady();
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| 
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| 	Pipe_Freeze();
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| 
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| 	if ((BufferPtr != NULL) &&
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| 	    ((ErrorCode = MS_Host_SendReceiveData(MSInterfaceInfo, SCSICommandBlock, BufferPtr)) != PIPE_RWSTREAM_NoError))
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| 	{
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| 		Pipe_Freeze();
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| 		return ErrorCode;
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| 	}
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| 	
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| 	return ErrorCode;
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| }
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| 
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| static uint8_t MS_Host_WaitForDataReceived(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo)
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| {
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| 	uint16_t TimeoutMSRem = COMMAND_DATA_TIMEOUT_MS;
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| 
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| 	Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber);
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| 	Pipe_Unfreeze();
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| 
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| 	while (!(Pipe_IsINReceived()))
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| 	{
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| 		if (USB_INT_HasOccurred(USB_INT_HSOFI))
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| 		{
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| 			USB_INT_Clear(USB_INT_HSOFI);
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| 			TimeoutMSRem--;
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| 
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| 			if (!(TimeoutMSRem))
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| 			  return PIPE_RWSTREAM_Timeout;
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| 		}
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| 	
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| 		Pipe_Freeze();
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| 		Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber);
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| 		Pipe_Unfreeze();
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| 
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| 		if (Pipe_IsStalled())
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| 		{
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| 			USB_Host_ClearPipeStall(MSInterfaceInfo->Config.DataOUTPipeNumber);
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| 
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| 			return PIPE_RWSTREAM_PipeStalled;
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| 		}
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| 		
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| 		Pipe_Freeze();
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| 		Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber);
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| 		Pipe_Unfreeze();
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| 
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| 		if (Pipe_IsStalled())
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| 		{
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| 			USB_Host_ClearPipeStall(MSInterfaceInfo->Config.DataINPipeNumber);
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| 
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| 			return PIPE_RWSTREAM_PipeStalled;
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| 		}
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| 		  
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| 		if (USB_HostState == HOST_STATE_Unattached)
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| 		  return PIPE_RWSTREAM_DeviceDisconnected;
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| 	};
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| 	
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| 	Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber);
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| 	Pipe_Freeze();
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| 		
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| 	Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber);
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| 	Pipe_Freeze();
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| 
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| 	return PIPE_RWSTREAM_NoError;
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| }
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| 
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| static uint8_t MS_Host_SendReceiveData(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
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|                                        MS_CommandBlockWrapper_t* const SCSICommandBlock, void* BufferPtr)
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| {
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| 	uint8_t  ErrorCode = PIPE_RWSTREAM_NoError;
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| 	uint16_t BytesRem  = SCSICommandBlock->DataTransferLength;
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| 
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| 	if (SCSICommandBlock->Flags & COMMAND_DIRECTION_DATA_IN)
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| 	{
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| 		if ((ErrorCode = MS_Host_WaitForDataReceived(MSInterfaceInfo)) != PIPE_RWSTREAM_NoError)
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| 		{
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| 			Pipe_Freeze();
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| 			return ErrorCode;
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| 		}
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| 
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| 		Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber);
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| 		Pipe_Unfreeze();
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| 		
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| 		if ((ErrorCode = Pipe_Read_Stream_LE(BufferPtr, BytesRem, NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)
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| 		  return ErrorCode;
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| 
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| 		Pipe_ClearIN();
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| 	}
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| 	else
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| 	{
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| 		Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber);
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| 		Pipe_Unfreeze();
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| 
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| 		if ((ErrorCode = Pipe_Write_Stream_LE(BufferPtr, BytesRem, NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)
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| 		  return ErrorCode;
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| 
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| 		Pipe_ClearOUT();
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| 		
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| 		while (!(Pipe_IsOUTReady()))
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| 		{
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| 			if (USB_HostState == HOST_STATE_Unattached)
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| 			  return PIPE_RWSTREAM_DeviceDisconnected;
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| 		}
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| 	}
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| 
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| 	Pipe_Freeze();
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| 
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| 	return ErrorCode;
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| }
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| 
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| static uint8_t MS_Host_GetReturnedStatus(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
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|                                          MS_CommandStatusWrapper_t* const SCSICommandStatus)
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| {
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| 	uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
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| 
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| 	if ((ErrorCode = MS_Host_WaitForDataReceived(MSInterfaceInfo)) != PIPE_RWSTREAM_NoError)
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| 	  return ErrorCode;
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| 
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| 	Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber);
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| 	Pipe_Unfreeze();
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| 	
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| 	if ((ErrorCode = Pipe_Read_Stream_LE(SCSICommandStatus, sizeof(MS_CommandStatusWrapper_t),
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| 	                                     NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)
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| 	{
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| 		return ErrorCode;
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| 	}
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| 	
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| 	Pipe_ClearIN();
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| 	Pipe_Freeze();
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| 	
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| 	if (SCSICommandStatus->Status != SCSI_Command_Pass)
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| 	  ErrorCode = MS_ERROR_LOGICAL_CMD_FAILED;
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| 	
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| 	return ErrorCode;
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| }
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| 
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| uint8_t MS_Host_ResetMSInterface(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo)
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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      = REQ_MassStorageReset,
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| 			.wValue        = 0,
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| 			.wIndex        = MSInterfaceInfo->State.InterfaceNumber,
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| 			.wLength       = 0,
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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(NULL);
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| }
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| 
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| uint8_t MS_Host_GetMaxLUN(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, uint8_t* const MaxLUNIndex)
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| {
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| 	uint8_t ErrorCode = HOST_SENDCONTROL_Successful;
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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      = REQ_GetMaxLUN,
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| 			.wValue        = 0,
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| 			.wIndex        = MSInterfaceInfo->State.InterfaceNumber,
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| 			.wLength       = 1,
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| 		};
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| 		
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| 	Pipe_SelectPipe(PIPE_CONTROLPIPE);
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| 
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| 	if ((ErrorCode = USB_Host_SendControlRequest(MaxLUNIndex)) != HOST_SENDCONTROL_Successful)
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| 	{
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| 		*MaxLUNIndex = 0;
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| 		ErrorCode = HOST_SENDCONTROL_Successful;
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| 	}
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| 	
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| 	return ErrorCode;
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| }
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| 
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| uint8_t MS_Host_GetInquiryData(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, const uint8_t LUNIndex,
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|                                SCSI_Inquiry_Response_t* const InquiryData)
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| {
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| 	if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
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| 	  return HOST_SENDCONTROL_DeviceDisconnected;
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| 	  
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| 	uint8_t ErrorCode;
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| 
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| 	MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
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| 		{
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| 			.Signature          = CBW_SIGNATURE,
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| 			.DataTransferLength = sizeof(SCSI_Inquiry_Response_t),
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| 			.Flags              = COMMAND_DIRECTION_DATA_IN,
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| 			.LUN                = LUNIndex,
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| 			.SCSICommandLength  = 6,
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| 			.SCSICommandData    =
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| 				{
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| 					SCSI_CMD_INQUIRY,
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| 					0x00,                            // Reserved
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| 					0x00,                            // Reserved
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| 					0x00,                            // Reserved
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| 					sizeof(SCSI_Inquiry_Response_t), // Allocation Length
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| 					0x00                             // Unused (control)
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| 				}
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| 		};
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| 	
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| 	MS_CommandStatusWrapper_t SCSICommandStatus;
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| 
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| 	if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, InquiryData)) != PIPE_RWSTREAM_NoError)
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| 	  return ErrorCode;	
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| 	
 | |
| 	if ((ErrorCode = MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
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| 	  return ErrorCode;
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| 
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| 	return PIPE_RWSTREAM_NoError;
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| }
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| 
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| uint8_t MS_Host_TestUnitReady(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, const uint8_t LUNIndex)
 | |
| {
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| 	if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
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| 	  return HOST_SENDCONTROL_DeviceDisconnected;
 | |
| 
 | |
| 	uint8_t ErrorCode;	
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| 
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| 	MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
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| 		{
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| 			.Signature          = CBW_SIGNATURE,
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| 			.DataTransferLength = 0,
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| 			.Flags              = COMMAND_DIRECTION_DATA_IN,
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| 			.LUN                = LUNIndex,
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| 			.SCSICommandLength  = 6,
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| 			.SCSICommandData    =
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| 				{
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| 					SCSI_CMD_TEST_UNIT_READY,
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| 					0x00,                   // Reserved
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| 					0x00,                   // Reserved
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| 					0x00,                   // Reserved
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| 					0x00,                   // Reserved
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| 					0x00                    // Unused (control)
 | |
| 				}
 | |
| 		};
 | |
| 	
 | |
| 	MS_CommandStatusWrapper_t SCSICommandStatus;
 | |
| 
 | |
| 	if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, NULL)) != PIPE_RWSTREAM_NoError)
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| 	  return ErrorCode;	
 | |
| 	
 | |
| 	if ((ErrorCode = MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
 | |
| 	  return ErrorCode;
 | |
| 
 | |
| 	return PIPE_RWSTREAM_NoError;
 | |
| }
 | |
| 
 | |
| uint8_t MS_Host_ReadDeviceCapacity(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, const uint8_t LUNIndex,
 | |
|                                    SCSI_Capacity_t* const DeviceCapacity)
 | |
| {
 | |
| 	if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
 | |
| 	  return HOST_SENDCONTROL_DeviceDisconnected;
 | |
| 
 | |
| 	uint8_t ErrorCode;
 | |
| 
 | |
| 	MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
 | |
| 		{
 | |
| 			.Signature          = CBW_SIGNATURE,
 | |
| 			.DataTransferLength = sizeof(SCSI_Capacity_t),
 | |
| 			.Flags              = COMMAND_DIRECTION_DATA_IN,
 | |
| 			.LUN                = LUNIndex,
 | |
| 			.SCSICommandLength  = 10,
 | |
| 			.SCSICommandData    =
 | |
| 				{
 | |
| 					SCSI_CMD_READ_CAPACITY_10,
 | |
| 					0x00,                   // Reserved
 | |
| 					0x00,                   // MSB of Logical block address
 | |
| 					0x00,
 | |
| 					0x00,
 | |
| 					0x00,                   // LSB of Logical block address
 | |
| 					0x00,                   // Reserved
 | |
| 					0x00,                   // Reserved
 | |
| 					0x00,                   // Partial Medium Indicator
 | |
| 					0x00                    // Unused (control)
 | |
| 				}
 | |
| 		};
 | |
| 	
 | |
| 	MS_CommandStatusWrapper_t SCSICommandStatus;
 | |
| 
 | |
| 	if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, DeviceCapacity)) != PIPE_RWSTREAM_NoError)
 | |
| 	  return ErrorCode;
 | |
| 
 | |
| 	DeviceCapacity->Blocks    = SwapEndian_32(DeviceCapacity->Blocks);
 | |
| 	DeviceCapacity->BlockSize = SwapEndian_32(DeviceCapacity->BlockSize);
 | |
| 	
 | |
| 	if ((ErrorCode = MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
 | |
| 	  return ErrorCode;
 | |
| 
 | |
| 	return PIPE_RWSTREAM_NoError;
 | |
| }
 | |
| 
 | |
| uint8_t MS_Host_RequestSense(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, const uint8_t LUNIndex,
 | |
|                              SCSI_Request_Sense_Response_t* const SenseData)
 | |
| {
 | |
| 	if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
 | |
| 	  return HOST_SENDCONTROL_DeviceDisconnected;
 | |
| 
 | |
| 	uint8_t ErrorCode;
 | |
| 
 | |
| 	MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
 | |
| 		{
 | |
| 			.Signature          = CBW_SIGNATURE,
 | |
| 			.DataTransferLength = sizeof(SCSI_Request_Sense_Response_t),
 | |
| 			.Flags              = COMMAND_DIRECTION_DATA_IN,
 | |
| 			.LUN                = LUNIndex,
 | |
| 			.SCSICommandLength  = 6,
 | |
| 			.SCSICommandData    =
 | |
| 				{
 | |
| 					SCSI_CMD_REQUEST_SENSE,
 | |
| 					0x00,                                  // Reserved
 | |
| 					0x00,                                  // Reserved
 | |
| 					0x00,                                  // Reserved
 | |
| 					sizeof(SCSI_Request_Sense_Response_t), // Allocation Length
 | |
| 					0x00                                   // Unused (control)
 | |
| 				}
 | |
| 		};
 | |
| 	
 | |
| 	MS_CommandStatusWrapper_t SCSICommandStatus;
 | |
| 
 | |
| 	if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, SenseData)) != PIPE_RWSTREAM_NoError)
 | |
| 	  return ErrorCode;
 | |
| 
 | |
| 	if ((ErrorCode = MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
 | |
| 	  return ErrorCode;
 | |
| 
 | |
| 	return PIPE_RWSTREAM_NoError;
 | |
| }
 | |
| 
 | |
| uint8_t MS_Host_PreventAllowMediumRemoval(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, const uint8_t LUNIndex,
 | |
|                                           const bool PreventRemoval)
 | |
| {
 | |
| 	if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
 | |
| 	  return HOST_SENDCONTROL_DeviceDisconnected;
 | |
| 
 | |
| 	uint8_t ErrorCode;
 | |
| 
 | |
| 	MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
 | |
| 		{
 | |
| 			.Signature          = CBW_SIGNATURE,
 | |
| 			.DataTransferLength = 0,
 | |
| 			.Flags              = COMMAND_DIRECTION_DATA_OUT,
 | |
| 			.LUN                = LUNIndex,
 | |
| 			.SCSICommandLength  = 6,
 | |
| 			.SCSICommandData    =
 | |
| 				{
 | |
| 					SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL,
 | |
| 					0x00,                   // Reserved
 | |
| 					0x00,                   // Reserved
 | |
| 					PreventRemoval,         // Prevent flag
 | |
| 					0x00,                   // Reserved
 | |
| 					0x00                    // Unused (control)
 | |
| 				}
 | |
| 		};
 | |
| 	
 | |
| 	MS_CommandStatusWrapper_t SCSICommandStatus;
 | |
| 
 | |
| 	if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, NULL)) != PIPE_RWSTREAM_NoError)
 | |
| 	  return ErrorCode;
 | |
| 	
 | |
| 	if ((ErrorCode = MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
 | |
| 	  return ErrorCode;
 | |
| 
 | |
| 	return PIPE_RWSTREAM_NoError;
 | |
| }
 | |
| 
 | |
| uint8_t MS_Host_ReadDeviceBlocks(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, const uint8_t LUNIndex, const uint32_t BlockAddress,
 | |
|                                  const uint8_t Blocks, const uint16_t BlockSize, void* BlockBuffer)
 | |
| {
 | |
| 	if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
 | |
| 	  return HOST_SENDCONTROL_DeviceDisconnected;
 | |
| 
 | |
| 	uint8_t ErrorCode;
 | |
| 
 | |
| 	MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
 | |
| 		{
 | |
| 			.Signature          = CBW_SIGNATURE,
 | |
| 			.DataTransferLength = ((uint32_t)Blocks * BlockSize),
 | |
| 			.Flags              = COMMAND_DIRECTION_DATA_IN,
 | |
| 			.LUN                = LUNIndex,
 | |
| 			.SCSICommandLength  = 10,
 | |
| 			.SCSICommandData    =
 | |
| 				{
 | |
| 					SCSI_CMD_READ_10,
 | |
| 					0x00,                   // Unused (control bits, all off)
 | |
| 					(BlockAddress >> 24),   // MSB of Block Address
 | |
| 					(BlockAddress >> 16),
 | |
| 					(BlockAddress >> 8),
 | |
| 					(BlockAddress & 0xFF),  // LSB of Block Address
 | |
| 					0x00,                   // Unused (reserved)
 | |
| 					0x00,                   // MSB of Total Blocks to Read
 | |
| 					Blocks,                 // LSB of Total Blocks to Read
 | |
| 					0x00                    // Unused (control)
 | |
| 				}
 | |
| 		};
 | |
| 
 | |
| 	MS_CommandStatusWrapper_t SCSICommandStatus;
 | |
| 
 | |
| 	if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, BlockBuffer)) != PIPE_RWSTREAM_NoError)
 | |
| 	  return ErrorCode;
 | |
| 
 | |
| 	if ((ErrorCode = MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
 | |
| 	  return ErrorCode;
 | |
| 
 | |
| 	return PIPE_RWSTREAM_NoError;
 | |
| }
 | |
| 
 | |
| uint8_t MS_Host_WriteDeviceBlocks(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, const uint8_t LUNIndex, const uint32_t BlockAddress,
 | |
|                                   const uint8_t Blocks, const uint16_t BlockSize, void* BlockBuffer)
 | |
| {
 | |
| 	if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
 | |
| 	  return HOST_SENDCONTROL_DeviceDisconnected;
 | |
| 
 | |
| 	uint8_t ErrorCode;
 | |
| 
 | |
| 	MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
 | |
| 		{
 | |
| 			.Signature          = CBW_SIGNATURE,
 | |
| 			.DataTransferLength = ((uint32_t)Blocks * BlockSize),
 | |
| 			.Flags              = COMMAND_DIRECTION_DATA_OUT,
 | |
| 			.LUN                = LUNIndex,
 | |
| 			.SCSICommandLength  = 10,
 | |
| 			.SCSICommandData    =
 | |
| 				{
 | |
| 					SCSI_CMD_WRITE_10,
 | |
| 					0x00,                   // Unused (control bits, all off)
 | |
| 					(BlockAddress >> 24),   // MSB of Block Address
 | |
| 					(BlockAddress >> 16),
 | |
| 					(BlockAddress >> 8),
 | |
| 					(BlockAddress & 0xFF),  // LSB of Block Address
 | |
| 					0x00,                   // Unused (reserved)
 | |
| 					0x00,                   // MSB of Total Blocks to Write
 | |
| 					Blocks,                 // LSB of Total Blocks to Write
 | |
| 					0x00                    // Unused (control)
 | |
| 				}
 | |
| 		};
 | |
| 
 | |
| 	MS_CommandStatusWrapper_t SCSICommandStatus;
 | |
| 
 | |
| 	if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, BlockBuffer)) != PIPE_RWSTREAM_NoError)
 | |
| 	  return ErrorCode;
 | |
| 	
 | |
| 	if ((ErrorCode = MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSICommandStatus)) != PIPE_RWSTREAM_NoError)
 | |
| 	  return ErrorCode;
 | |
| 
 | |
| 	return PIPE_RWSTREAM_NoError;
 | |
| }
 | |
| 
 | |
| #endif
 | 
