X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/3eb81df998349e90c3d973e6301f19382c5b2e84..77a9df36a77d2523dd2bc24fa17f9f04c6c175c5:/LUFA/Drivers/USB/Class/Host/MassStorage.c diff --git a/LUFA/Drivers/USB/Class/Host/MassStorage.c b/LUFA/Drivers/USB/Class/Host/MassStorage.c index 4ec0b244f..65ed6940e 100644 --- a/LUFA/Drivers/USB/Class/Host/MassStorage.c +++ b/LUFA/Drivers/USB/Class/Host/MassStorage.c @@ -1,600 +1,650 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2010. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, distribute, and sell this - software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in - all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the - software without specific, written prior permission. - - The author disclaim all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -#define __INCLUDE_FROM_USB_DRIVER -#include "../../HighLevel/USBMode.h" -#if defined(USB_CAN_BE_HOST) - -#define __INCLUDE_FROM_MS_CLASS_HOST_C -#define __INCLUDE_FROM_MS_DRIVER -#include "MassStorage.h" - -uint8_t MS_Host_ConfigurePipes(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, uint16_t ConfigDescriptorSize, - void* DeviceConfigDescriptor) -{ - uint8_t FoundEndpoints = 0; - - memset(&MSInterfaceInfo->State, 0x00, sizeof(MSInterfaceInfo->State)); - - if (DESCRIPTOR_TYPE(DeviceConfigDescriptor) != DTYPE_Configuration) - return MS_ENUMERROR_InvalidConfigDescriptor; - - if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &DeviceConfigDescriptor, - DComp_NextMSInterface) != DESCRIPTOR_SEARCH_COMP_Found) - { - return MS_ENUMERROR_NoMSInterfaceFound; - } - - MSInterfaceInfo->State.InterfaceNumber = DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Interface_t)->InterfaceNumber; - - while (FoundEndpoints != (MS_FOUND_DATAPIPE_IN | MS_FOUND_DATAPIPE_OUT)) - { - if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &DeviceConfigDescriptor, - DComp_NextMSInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) - { - return MS_ENUMERROR_EndpointsNotFound; - } - - USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Endpoint_t); - - if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN) - { - Pipe_ConfigurePipe(MSInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN, - EndpointData->EndpointAddress, EndpointData->EndpointSize, - MSInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); - MSInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize; - - FoundEndpoints |= MS_FOUND_DATAPIPE_IN; - } - else - { - Pipe_ConfigurePipe(MSInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT, - EndpointData->EndpointAddress, EndpointData->EndpointSize, - MSInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); - MSInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize; - - FoundEndpoints |= MS_FOUND_DATAPIPE_OUT; - } - } - - MSInterfaceInfo->State.IsActive = true; - return MS_ENUMERROR_NoError; -} - -static uint8_t DComp_NextMSInterface(void* const CurrentDescriptor) -{ - if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) - { - USB_Descriptor_Interface_t* CurrentInterface = DESCRIPTOR_PCAST(CurrentDescriptor, - USB_Descriptor_Interface_t); - - if ((CurrentInterface->Class == MASS_STORE_CLASS) && - (CurrentInterface->SubClass == MASS_STORE_SUBCLASS) && - (CurrentInterface->Protocol == MASS_STORE_PROTOCOL)) - { - return DESCRIPTOR_SEARCH_Found; - } - } - - return DESCRIPTOR_SEARCH_NotFound; -} - -static uint8_t DComp_NextMSInterfaceEndpoint(void* const CurrentDescriptor) -{ - if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint) - { - USB_Descriptor_Endpoint_t* CurrentEndpoint = DESCRIPTOR_PCAST(CurrentDescriptor, - USB_Descriptor_Endpoint_t); - - uint8_t EndpointType = (CurrentEndpoint->Attributes & EP_TYPE_MASK); - - if ((EndpointType == EP_TYPE_BULK) && - (!(Pipe_IsEndpointBound(CurrentEndpoint->EndpointAddress)))) - { - return DESCRIPTOR_SEARCH_Found; - } - } - else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) - { - return DESCRIPTOR_SEARCH_Fail; - } - - return DESCRIPTOR_SEARCH_NotFound; -} - -static uint8_t MS_Host_SendCommand(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, MS_CommandBlockWrapper_t* const SCSICommandBlock, - const void* const BufferPtr) -{ - uint8_t ErrorCode = PIPE_RWSTREAM_NoError; - - SCSICommandBlock->Tag = ++MSInterfaceInfo->State.TransactionTag; - - if (MSInterfaceInfo->State.TransactionTag == 0xFFFFFFFF) - MSInterfaceInfo->State.TransactionTag = 1; - - Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber); - Pipe_Unfreeze(); - - if ((ErrorCode = Pipe_Write_Stream_LE(SCSICommandBlock, sizeof(MS_CommandBlockWrapper_t), - NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError) - return ErrorCode; - - Pipe_ClearOUT(); - Pipe_WaitUntilReady(); - - Pipe_Freeze(); - - if ((BufferPtr != NULL) && - ((ErrorCode = MS_Host_SendReceiveData(MSInterfaceInfo, SCSICommandBlock, (void*)BufferPtr)) != PIPE_RWSTREAM_NoError)) - { - Pipe_Freeze(); - return ErrorCode; - } - - return ErrorCode; -} - -static uint8_t MS_Host_WaitForDataReceived(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo) -{ - uint16_t TimeoutMSRem = COMMAND_DATA_TIMEOUT_MS; - - Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber); - Pipe_Unfreeze(); - - while (!(Pipe_IsINReceived())) - { - if (USB_INT_HasOccurred(USB_INT_HSOFI)) - { - USB_INT_Clear(USB_INT_HSOFI); - TimeoutMSRem--; - - if (!(TimeoutMSRem)) - return PIPE_RWSTREAM_Timeout; - } - - Pipe_Freeze(); - Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber); - Pipe_Unfreeze(); - - if (Pipe_IsStalled()) - { - USB_Host_ClearPipeStall(MSInterfaceInfo->Config.DataOUTPipeNumber); - - return PIPE_RWSTREAM_PipeStalled; - } - - Pipe_Freeze(); - Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber); - Pipe_Unfreeze(); - - if (Pipe_IsStalled()) - { - USB_Host_ClearPipeStall(MSInterfaceInfo->Config.DataINPipeNumber); - - return PIPE_RWSTREAM_PipeStalled; - } - - if (USB_HostState == HOST_STATE_Unattached) - return PIPE_RWSTREAM_DeviceDisconnected; - }; - - Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber); - Pipe_Freeze(); - - Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber); - Pipe_Freeze(); - - return PIPE_RWSTREAM_NoError; -} - -static uint8_t MS_Host_SendReceiveData(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, - MS_CommandBlockWrapper_t* const SCSICommandBlock, void* BufferPtr) -{ - uint8_t ErrorCode = PIPE_RWSTREAM_NoError; - uint16_t BytesRem = SCSICommandBlock->DataTransferLength; - - if (SCSICommandBlock->Flags & COMMAND_DIRECTION_DATA_IN) - { - if ((ErrorCode = MS_Host_WaitForDataReceived(MSInterfaceInfo)) != PIPE_RWSTREAM_NoError) - { - Pipe_Freeze(); - return ErrorCode; - } - - Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber); - Pipe_Unfreeze(); - - if ((ErrorCode = Pipe_Read_Stream_LE(BufferPtr, BytesRem, NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError) - return ErrorCode; - - Pipe_ClearIN(); - } - else - { - Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber); - Pipe_Unfreeze(); - - if ((ErrorCode = Pipe_Write_Stream_LE(BufferPtr, BytesRem, NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError) - return ErrorCode; - - Pipe_ClearOUT(); - - while (!(Pipe_IsOUTReady())) - { - if (USB_HostState == HOST_STATE_Unattached) - return PIPE_RWSTREAM_DeviceDisconnected; - } - } - - Pipe_Freeze(); - - return ErrorCode; -} - -static uint8_t MS_Host_GetReturnedStatus(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, - MS_CommandStatusWrapper_t* const SCSICommandStatus) -{ - uint8_t ErrorCode = PIPE_RWSTREAM_NoError; - - if ((ErrorCode = MS_Host_WaitForDataReceived(MSInterfaceInfo)) != PIPE_RWSTREAM_NoError) - return ErrorCode; - - Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber); - Pipe_Unfreeze(); - - if ((ErrorCode = Pipe_Read_Stream_LE(SCSICommandStatus, sizeof(MS_CommandStatusWrapper_t), - NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError) - { - return ErrorCode; - } - - Pipe_ClearIN(); - Pipe_Freeze(); - - if (SCSICommandStatus->Status != SCSI_Command_Pass) - ErrorCode = MS_ERROR_LOGICAL_CMD_FAILED; - - return ErrorCode; -} - -uint8_t MS_Host_ResetMSInterface(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo) -{ - USB_ControlRequest = (USB_Request_Header_t) - { - .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), - .bRequest = REQ_MassStorageReset, - .wValue = 0, - .wIndex = MSInterfaceInfo->State.InterfaceNumber, - .wLength = 0, - }; - - Pipe_SelectPipe(PIPE_CONTROLPIPE); - - return USB_Host_SendControlRequest(NULL); -} - -uint8_t MS_Host_GetMaxLUN(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, uint8_t* const MaxLUNIndex) -{ - uint8_t ErrorCode = HOST_SENDCONTROL_Successful; - - USB_ControlRequest = (USB_Request_Header_t) - { - .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE), - .bRequest = REQ_GetMaxLUN, - .wValue = 0, - .wIndex = MSInterfaceInfo->State.InterfaceNumber, - .wLength = 1, - }; - - Pipe_SelectPipe(PIPE_CONTROLPIPE); - - if ((ErrorCode = USB_Host_SendControlRequest(MaxLUNIndex)) != HOST_SENDCONTROL_Successful) - { - *MaxLUNIndex = 0; - ErrorCode = HOST_SENDCONTROL_Successful; - } - - return ErrorCode; -} - -uint8_t MS_Host_GetInquiryData(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, const uint8_t LUNIndex, - SCSI_Inquiry_Response_t* const InquiryData) -{ - 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_Inquiry_Response_t), - .Flags = COMMAND_DIRECTION_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) - } - }; - - MS_CommandStatusWrapper_t SCSICommandStatus; - - if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, InquiryData)) != 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_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; - - uint8_t ErrorCode; - - MS_CommandBlockWrapper_t SCSICommandBlock = (MS_CommandBlockWrapper_t) - { - .Signature = CBW_SIGNATURE, - .DataTransferLength = 0, - .Flags = COMMAND_DIRECTION_DATA_IN, - .LUN = LUNIndex, - .SCSICommandLength = 6, - .SCSICommandData = - { - SCSI_CMD_TEST_UNIT_READY, - 0x00, // Reserved - 0x00, // Reserved - 0x00, // Reserved - 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_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, const 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 +/* + LUFA Library + Copyright (C) Dean Camera, 2011. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +#define __INCLUDE_FROM_USB_DRIVER +#include "../../Core/USBMode.h" + +#if defined(USB_CAN_BE_HOST) + +#define __INCLUDE_FROM_MS_DRIVER +#define __INCLUDE_FROM_MASSSTORAGE_HOST_C +#include "MassStorage.h" + +uint8_t MS_Host_ConfigurePipes(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + uint16_t ConfigDescriptorSize, + void* ConfigDescriptorData) +{ + USB_Descriptor_Endpoint_t* DataINEndpoint = NULL; + USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL; + USB_Descriptor_Interface_t* MassStorageInterface = NULL; + + memset(&MSInterfaceInfo->State, 0x00, sizeof(MSInterfaceInfo->State)); + + if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration) + return MS_ENUMERROR_InvalidConfigDescriptor; + + while (!(DataINEndpoint) || !(DataOUTEndpoint)) + { + if (!(MassStorageInterface) || + USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, + DCOMP_MS_Host_NextMSInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) + { + if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, + DCOMP_MS_Host_NextMSInterface) != DESCRIPTOR_SEARCH_COMP_Found) + { + return MS_ENUMERROR_NoCompatibleInterfaceFound; + } + + MassStorageInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t); + + DataINEndpoint = NULL; + DataOUTEndpoint = NULL; + + continue; + } + + USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t); + + if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN) + DataINEndpoint = EndpointData; + else + DataOUTEndpoint = EndpointData; + } + + for (uint8_t PipeNum = 1; PipeNum < PIPE_TOTAL_PIPES; PipeNum++) + { + uint16_t Size; + uint8_t Type; + uint8_t Token; + uint8_t EndpointAddress; + bool DoubleBanked; + + if (PipeNum == MSInterfaceInfo->Config.DataINPipeNumber) + { + Size = le16_to_cpu(DataINEndpoint->EndpointSize); + EndpointAddress = DataINEndpoint->EndpointAddress; + Token = PIPE_TOKEN_IN; + Type = EP_TYPE_BULK; + DoubleBanked = MSInterfaceInfo->Config.DataINPipeDoubleBank; + + MSInterfaceInfo->State.DataINPipeSize = DataINEndpoint->EndpointSize; + } + else if (PipeNum == MSInterfaceInfo->Config.DataOUTPipeNumber) + { + Size = le16_to_cpu(DataOUTEndpoint->EndpointSize); + EndpointAddress = DataOUTEndpoint->EndpointAddress; + Token = PIPE_TOKEN_OUT; + Type = EP_TYPE_BULK; + DoubleBanked = MSInterfaceInfo->Config.DataOUTPipeDoubleBank; + + MSInterfaceInfo->State.DataOUTPipeSize = DataOUTEndpoint->EndpointSize; + } + else + { + continue; + } + + if (!(Pipe_ConfigurePipe(PipeNum, Type, Token, EndpointAddress, Size, + DoubleBanked ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE))) + { + return MS_ENUMERROR_PipeConfigurationFailed; + } + } + + MSInterfaceInfo->State.InterfaceNumber = MassStorageInterface->InterfaceNumber; + MSInterfaceInfo->State.IsActive = true; + + return MS_ENUMERROR_NoError; +} + +static uint8_t DCOMP_MS_Host_NextMSInterface(void* const CurrentDescriptor) +{ + USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t); + + if (Header->Type == DTYPE_Interface) + { + USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t); + + if ((Interface->Class == MS_CSCP_MassStorageClass) && + (Interface->SubClass == MS_CSCP_SCSITransparentSubclass) && + (Interface->Protocol == MS_CSCP_BulkOnlyTransportProtocol)) + { + return DESCRIPTOR_SEARCH_Found; + } + } + + return DESCRIPTOR_SEARCH_NotFound; +} + +static uint8_t DCOMP_MS_Host_NextMSInterfaceEndpoint(void* const CurrentDescriptor) +{ + USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t); + + if (Header->Type == DTYPE_Endpoint) + { + USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t); + + uint8_t EndpointType = (Endpoint->Attributes & EP_TYPE_MASK); + + if ((EndpointType == EP_TYPE_BULK) && (!(Pipe_IsEndpointBound(Endpoint->EndpointAddress)))) + { + return DESCRIPTOR_SEARCH_Found; + } + } + else if (Header->Type == DTYPE_Interface) + { + return DESCRIPTOR_SEARCH_Fail; + } + + return DESCRIPTOR_SEARCH_NotFound; +} + +static uint8_t MS_Host_SendCommand(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + MS_CommandBlockWrapper_t* const SCSICommandBlock, + const void* const BufferPtr) +{ + uint8_t ErrorCode = PIPE_RWSTREAM_NoError; + + if (++MSInterfaceInfo->State.TransactionTag == 0xFFFFFFFF) + MSInterfaceInfo->State.TransactionTag = 1; + + SCSICommandBlock->Signature = CPU_TO_LE32(MS_CBW_SIGNATURE); + SCSICommandBlock->Tag = cpu_to_le32(MSInterfaceInfo->State.TransactionTag); + + Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber); + Pipe_Unfreeze(); + + if ((ErrorCode = Pipe_Write_Stream_LE(SCSICommandBlock, sizeof(MS_CommandBlockWrapper_t), + NULL)) != PIPE_RWSTREAM_NoError) + return ErrorCode; + + Pipe_ClearOUT(); + Pipe_WaitUntilReady(); + + Pipe_Freeze(); + + if ((BufferPtr != NULL) && + ((ErrorCode = MS_Host_SendReceiveData(MSInterfaceInfo, SCSICommandBlock, (void*)BufferPtr)) != PIPE_RWSTREAM_NoError)) + { + Pipe_Freeze(); + return ErrorCode; + } + + return ErrorCode; +} + +static uint8_t MS_Host_WaitForDataReceived(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo) +{ + uint16_t TimeoutMSRem = MS_COMMAND_DATA_TIMEOUT_MS; + uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber(); + + Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber); + Pipe_Unfreeze(); + + while (!(Pipe_IsINReceived())) + { + uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber(); + + if (CurrentFrameNumber != PreviousFrameNumber) + { + PreviousFrameNumber = CurrentFrameNumber; + + if (!(TimeoutMSRem--)) + return PIPE_RWSTREAM_Timeout; + } + + Pipe_Freeze(); + Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber); + Pipe_Unfreeze(); + + if (Pipe_IsStalled()) + { + USB_Host_ClearPipeStall(MSInterfaceInfo->Config.DataOUTPipeNumber); + + return PIPE_RWSTREAM_PipeStalled; + } + + Pipe_Freeze(); + Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber); + Pipe_Unfreeze(); + + if (Pipe_IsStalled()) + { + USB_Host_ClearPipeStall(MSInterfaceInfo->Config.DataINPipeNumber); + + return PIPE_RWSTREAM_PipeStalled; + } + + if (USB_HostState == HOST_STATE_Unattached) + return PIPE_RWSTREAM_DeviceDisconnected; + }; + + Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber); + Pipe_Freeze(); + + Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber); + Pipe_Freeze(); + + return PIPE_RWSTREAM_NoError; +} + +static uint8_t MS_Host_SendReceiveData(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + MS_CommandBlockWrapper_t* const SCSICommandBlock, + void* BufferPtr) +{ + uint8_t ErrorCode = PIPE_RWSTREAM_NoError; + uint16_t BytesRem = le32_to_cpu(SCSICommandBlock->DataTransferLength); + + if (SCSICommandBlock->Flags & MS_COMMAND_DIR_DATA_IN) + { + if ((ErrorCode = MS_Host_WaitForDataReceived(MSInterfaceInfo)) != PIPE_RWSTREAM_NoError) + { + Pipe_Freeze(); + return ErrorCode; + } + + Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber); + Pipe_Unfreeze(); + + if ((ErrorCode = Pipe_Read_Stream_LE(BufferPtr, BytesRem, NULL)) != PIPE_RWSTREAM_NoError) + return ErrorCode; + + Pipe_ClearIN(); + } + else + { + Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber); + Pipe_Unfreeze(); + + if ((ErrorCode = Pipe_Write_Stream_LE(BufferPtr, BytesRem, NULL)) != PIPE_RWSTREAM_NoError) + return ErrorCode; + + Pipe_ClearOUT(); + + while (!(Pipe_IsOUTReady())) + { + if (USB_HostState == HOST_STATE_Unattached) + return PIPE_RWSTREAM_DeviceDisconnected; + } + } + + Pipe_Freeze(); + + return ErrorCode; +} + +static uint8_t MS_Host_GetReturnedStatus(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + MS_CommandStatusWrapper_t* const SCSICommandStatus) +{ + uint8_t ErrorCode = PIPE_RWSTREAM_NoError; + + if ((ErrorCode = MS_Host_WaitForDataReceived(MSInterfaceInfo)) != PIPE_RWSTREAM_NoError) + return ErrorCode; + + Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber); + Pipe_Unfreeze(); + + if ((ErrorCode = Pipe_Read_Stream_LE(SCSICommandStatus, sizeof(MS_CommandStatusWrapper_t), + NULL)) != PIPE_RWSTREAM_NoError) + { + return ErrorCode; + } + + Pipe_ClearIN(); + Pipe_Freeze(); + + if (SCSICommandStatus->Status != MS_SCSI_COMMAND_Pass) + ErrorCode = MS_ERROR_LOGICAL_CMD_FAILED; + + return ErrorCode; +} + +uint8_t MS_Host_ResetMSInterface(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo) +{ + USB_ControlRequest = (USB_Request_Header_t) + { + .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), + .bRequest = MS_REQ_MassStorageReset, + .wValue = 0, + .wIndex = MSInterfaceInfo->State.InterfaceNumber, + .wLength = 0, + }; + + Pipe_SelectPipe(PIPE_CONTROLPIPE); + + return USB_Host_SendControlRequest(NULL); +} + +uint8_t MS_Host_GetMaxLUN(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + uint8_t* const MaxLUNIndex) +{ + uint8_t ErrorCode = HOST_SENDCONTROL_Successful; + + USB_ControlRequest = (USB_Request_Header_t) + { + .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE), + .bRequest = MS_REQ_GetMaxLUN, + .wValue = 0, + .wIndex = MSInterfaceInfo->State.InterfaceNumber, + .wLength = 1, + }; + + Pipe_SelectPipe(PIPE_CONTROLPIPE); + + if ((ErrorCode = USB_Host_SendControlRequest(MaxLUNIndex)) == HOST_SENDCONTROL_SetupStalled) + { + *MaxLUNIndex = 0; + ErrorCode = HOST_SENDCONTROL_Successful; + } + + return ErrorCode; +} + +uint8_t MS_Host_GetInquiryData(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, + const uint8_t LUNIndex, + SCSI_Inquiry_Response_t* const InquiryData) +{ + 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_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) + } + }; + + MS_CommandStatusWrapper_t SCSICommandStatus; + + if ((ErrorCode = MS_Host_SendCommand(MSInterfaceInfo, &SCSICommandBlock, InquiryData)) != 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_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; + + uint8_t ErrorCode; + + 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) + } + }; + + 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_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) + } + }; + + MS_CommandStatusWrapper_t SCSICommandStatus; + + 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); + + 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) + { + .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) + } + }; + + 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) + { + .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) + } + }; + + 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) + { + .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) + } + }; + + 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, + const 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) + { + .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) + } + }; + + 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 +