580 lines
19 KiB
C
580 lines
19 KiB
C
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2017.
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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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Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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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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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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#define __INCLUDE_FROM_USB_DRIVER
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#include "../../Core/USBMode.h"
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#if defined(USB_CAN_BE_HOST)
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#define __INCLUDE_FROM_MS_DRIVER
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#define __INCLUDE_FROM_MASSSTORAGE_HOST_C
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#include "MassStorageClassHost.h"
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uint8_t MS_Host_ConfigurePipes(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
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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_Interface_t* MassStorageInterface = NULL;
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memset(&MSInterfaceInfo->State, 0x00, sizeof(MSInterfaceInfo->State));
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if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
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return MS_ENUMERROR_InvalidConfigDescriptor;
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while (!(DataINEndpoint) || !(DataOUTEndpoint))
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{
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if (!(MassStorageInterface) ||
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USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
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DCOMP_MS_Host_NextMSInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
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{
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if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
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DCOMP_MS_Host_NextMSInterface) != DESCRIPTOR_SEARCH_COMP_Found)
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{
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return MS_ENUMERROR_NoCompatibleInterfaceFound;
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}
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MassStorageInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
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DataINEndpoint = NULL;
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DataOUTEndpoint = NULL;
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continue;
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}
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USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
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if ((EndpointData->EndpointAddress & ENDPOINT_DIR_MASK) == ENDPOINT_DIR_IN)
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DataINEndpoint = EndpointData;
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else
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DataOUTEndpoint = EndpointData;
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}
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MSInterfaceInfo->Config.DataINPipe.Size = le16_to_cpu(DataINEndpoint->EndpointSize);
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MSInterfaceInfo->Config.DataINPipe.EndpointAddress = DataINEndpoint->EndpointAddress;
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MSInterfaceInfo->Config.DataINPipe.Type = EP_TYPE_BULK;
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MSInterfaceInfo->Config.DataOUTPipe.Size = le16_to_cpu(DataOUTEndpoint->EndpointSize);
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MSInterfaceInfo->Config.DataOUTPipe.EndpointAddress = DataOUTEndpoint->EndpointAddress;
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MSInterfaceInfo->Config.DataOUTPipe.Type = EP_TYPE_BULK;
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if (!(Pipe_ConfigurePipeTable(&MSInterfaceInfo->Config.DataINPipe, 1)))
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return MS_ENUMERROR_PipeConfigurationFailed;
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if (!(Pipe_ConfigurePipeTable(&MSInterfaceInfo->Config.DataOUTPipe, 1)))
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return MS_ENUMERROR_PipeConfigurationFailed;
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MSInterfaceInfo->State.InterfaceNumber = MassStorageInterface->InterfaceNumber;
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MSInterfaceInfo->State.IsActive = true;
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return MS_ENUMERROR_NoError;
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}
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static uint8_t DCOMP_MS_Host_NextMSInterface(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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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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if ((Interface->Class == MS_CSCP_MassStorageClass) &&
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(Interface->SubClass == MS_CSCP_SCSITransparentSubclass) &&
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(Interface->Protocol == MS_CSCP_BulkOnlyTransportProtocol))
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{
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return DESCRIPTOR_SEARCH_Found;
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}
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}
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return DESCRIPTOR_SEARCH_NotFound;
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}
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static uint8_t DCOMP_MS_Host_NextMSInterfaceEndpoint(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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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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uint8_t EndpointType = (Endpoint->Attributes & EP_TYPE_MASK);
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if ((EndpointType == EP_TYPE_BULK) && (!(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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return DESCRIPTOR_SEARCH_NotFound;
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}
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static uint8_t MS_Host_SendCommand(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
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MS_CommandBlockWrapper_t* const SCSICommandBlock,
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const void* const BufferPtr)
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{
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uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
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if (++MSInterfaceInfo->State.TransactionTag == 0xFFFFFFFF)
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MSInterfaceInfo->State.TransactionTag = 1;
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SCSICommandBlock->Signature = CPU_TO_LE32(MS_CBW_SIGNATURE);
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SCSICommandBlock->Tag = cpu_to_le32(MSInterfaceInfo->State.TransactionTag);
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Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipe.Address);
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Pipe_Unfreeze();
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if ((ErrorCode = Pipe_Write_Stream_LE(SCSICommandBlock, sizeof(MS_CommandBlockWrapper_t),
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NULL)) != PIPE_RWSTREAM_NoError)
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{
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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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Pipe_Freeze();
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if (BufferPtr != NULL)
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{
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ErrorCode = MS_Host_SendReceiveData(MSInterfaceInfo, SCSICommandBlock, (void*)BufferPtr);
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if ((ErrorCode != PIPE_RWSTREAM_NoError) && (ErrorCode != PIPE_RWSTREAM_PipeStalled))
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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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MS_CommandStatusWrapper_t SCSIStatusBlock;
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return MS_Host_GetReturnedStatus(MSInterfaceInfo, &SCSIStatusBlock);
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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 = MS_COMMAND_DATA_TIMEOUT_MS;
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uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber();
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Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipe.Address);
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Pipe_Unfreeze();
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while (!(Pipe_IsINReceived()))
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{
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uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber();
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if (CurrentFrameNumber != PreviousFrameNumber)
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{
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PreviousFrameNumber = CurrentFrameNumber;
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if (!(TimeoutMSRem--))
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return PIPE_RWSTREAM_Timeout;
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}
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Pipe_Freeze();
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Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipe.Address);
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Pipe_Unfreeze();
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if (Pipe_IsStalled())
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{
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USB_Host_ClearEndpointStall(Pipe_GetBoundEndpointAddress());
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return PIPE_RWSTREAM_PipeStalled;
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}
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Pipe_Freeze();
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Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipe.Address);
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Pipe_Unfreeze();
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if (Pipe_IsStalled())
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{
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USB_Host_ClearEndpointStall(Pipe_GetBoundEndpointAddress());
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return PIPE_RWSTREAM_PipeStalled;
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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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Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipe.Address);
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Pipe_Freeze();
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Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipe.Address);
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Pipe_Freeze();
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return PIPE_RWSTREAM_NoError;
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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,
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void* BufferPtr)
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{
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uint8_t ErrorCode = PIPE_RWSTREAM_NoError;
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uint16_t BytesRem = le32_to_cpu(SCSICommandBlock->DataTransferLength);
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if (SCSICommandBlock->Flags & MS_COMMAND_DIR_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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Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipe.Address);
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Pipe_Unfreeze();
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if ((ErrorCode = Pipe_Read_Stream_LE(BufferPtr, BytesRem, NULL)) != PIPE_RWSTREAM_NoError)
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return ErrorCode;
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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.DataOUTPipe.Address);
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Pipe_Unfreeze();
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if ((ErrorCode = Pipe_Write_Stream_LE(BufferPtr, BytesRem, NULL)) != PIPE_RWSTREAM_NoError)
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return ErrorCode;
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Pipe_ClearOUT();
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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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Pipe_Freeze();
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return ErrorCode;
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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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if ((ErrorCode = MS_Host_WaitForDataReceived(MSInterfaceInfo)) != PIPE_RWSTREAM_NoError)
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return ErrorCode;
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Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipe.Address);
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Pipe_Unfreeze();
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if ((ErrorCode = Pipe_Read_Stream_LE(SCSICommandStatus, sizeof(MS_CommandStatusWrapper_t),
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NULL)) != PIPE_RWSTREAM_NoError)
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{
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return ErrorCode;
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}
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Pipe_ClearIN();
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Pipe_Freeze();
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if (SCSICommandStatus->Status != MS_SCSI_COMMAND_Pass)
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ErrorCode = MS_ERROR_LOGICAL_CMD_FAILED;
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return ErrorCode;
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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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uint8_t ErrorCode;
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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 = MS_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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Pipe_SelectPipe(PIPE_CONTROLPIPE);
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if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
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return ErrorCode;
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Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipe.Address);
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if ((ErrorCode = USB_Host_ClearEndpointStall(Pipe_GetBoundEndpointAddress())) != HOST_SENDCONTROL_Successful)
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return ErrorCode;
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Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipe.Address);
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if ((ErrorCode = USB_Host_ClearEndpointStall(Pipe_GetBoundEndpointAddress())) != HOST_SENDCONTROL_Successful)
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return ErrorCode;
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return HOST_SENDCONTROL_Successful;
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}
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uint8_t MS_Host_GetMaxLUN(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
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uint8_t* const MaxLUNIndex)
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{
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uint8_t ErrorCode;
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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 = MS_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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Pipe_SelectPipe(PIPE_CONTROLPIPE);
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if ((ErrorCode = USB_Host_SendControlRequest(MaxLUNIndex)) == HOST_SENDCONTROL_SetupStalled)
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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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return ErrorCode;
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}
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uint8_t MS_Host_GetInquiryData(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
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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;
|
||
|
|
|
||
|
|
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
|
||
|
|
{
|
||
|
|
.DataTransferLength = CPU_TO_LE32(sizeof(SCSI_Inquiry_Response_t)),
|
||
|
|
.Flags = MS_COMMAND_DIR_DATA_IN,
|
||
|
|
.LUN = LUNIndex,
|
||
|
|
.SCSICommandLength = 6,
|
||
|
|
.SCSICommandData =
|
||
|
|
{
|
||
|
|
SCSI_CMD_INQUIRY,
|
||
|
|
0x00, // Reserved
|
||
|
|
0x00, // Reserved
|
||
|
|
0x00, // Reserved
|
||
|
|
sizeof(SCSI_Inquiry_Response_t), // Allocation Length
|
||
|
|
0x00 // Unused (control)
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, InquiryData);
|
||
|
|
}
|
||
|
|
|
||
|
|
uint8_t MS_Host_TestUnitReady(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
|
||
|
|
const uint8_t LUNIndex)
|
||
|
|
{
|
||
|
|
if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
|
||
|
|
return HOST_SENDCONTROL_DeviceDisconnected;
|
||
|
|
|
||
|
|
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
|
||
|
|
{
|
||
|
|
.DataTransferLength = CPU_TO_LE32(0),
|
||
|
|
.Flags = MS_COMMAND_DIR_DATA_IN,
|
||
|
|
.LUN = LUNIndex,
|
||
|
|
.SCSICommandLength = 6,
|
||
|
|
.SCSICommandData =
|
||
|
|
{
|
||
|
|
SCSI_CMD_TEST_UNIT_READY,
|
||
|
|
0x00, // Reserved
|
||
|
|
0x00, // Reserved
|
||
|
|
0x00, // Reserved
|
||
|
|
0x00, // Reserved
|
||
|
|
0x00 // Unused (control)
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
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)
|
||
|
|
{
|
||
|
|
.DataTransferLength = CPU_TO_LE32(sizeof(SCSI_Capacity_t)),
|
||
|
|
.Flags = MS_COMMAND_DIR_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)
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, DeviceCapacity)) != PIPE_RWSTREAM_NoError)
|
||
|
|
return ErrorCode;
|
||
|
|
|
||
|
|
DeviceCapacity->Blocks = BE32_TO_CPU(DeviceCapacity->Blocks);
|
||
|
|
DeviceCapacity->BlockSize = BE32_TO_CPU(DeviceCapacity->BlockSize);
|
||
|
|
|
||
|
|
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;
|
||
|
|
|
||
|
|
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
|
||
|
|
{
|
||
|
|
.DataTransferLength = CPU_TO_LE32(sizeof(SCSI_Request_Sense_Response_t)),
|
||
|
|
.Flags = MS_COMMAND_DIR_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)
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, SenseData);
|
||
|
|
}
|
||
|
|
|
||
|
|
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;
|
||
|
|
|
||
|
|
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
|
||
|
|
{
|
||
|
|
.DataTransferLength = CPU_TO_LE32(0),
|
||
|
|
.Flags = MS_COMMAND_DIR_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)
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
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;
|
||
|
|
|
||
|
|
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
|
||
|
|
{
|
||
|
|
.DataTransferLength = cpu_to_le32((uint32_t)Blocks * BlockSize),
|
||
|
|
.Flags = MS_COMMAND_DIR_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, // Reserved
|
||
|
|
0x00, // MSB of Total Blocks to Read
|
||
|
|
Blocks, // LSB of Total Blocks to Read
|
||
|
|
0x00 // Unused (control)
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, BlockBuffer);
|
||
|
|
}
|
||
|
|
|
||
|
|
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,
|
||
|
|
const void* BlockBuffer)
|
||
|
|
{
|
||
|
|
if ((USB_HostState != HOST_STATE_Configured) || !(MSInterfaceInfo->State.IsActive))
|
||
|
|
return HOST_SENDCONTROL_DeviceDisconnected;
|
||
|
|
|
||
|
|
MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t)
|
||
|
|
{
|
||
|
|
.DataTransferLength = cpu_to_le32((uint32_t)Blocks * BlockSize),
|
||
|
|
.Flags = MS_COMMAND_DIR_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, // Reserved
|
||
|
|
0x00, // MSB of Total Blocks to Write
|
||
|
|
Blocks, // LSB of Total Blocks to Write
|
||
|
|
0x00 // Unused (control)
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, BlockBuffer);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|