-/*
- 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_DIR_MASK) == ENDPOINT_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_ClearEndpointStall(Pipe_GetBoundEndpointAddress());
- return PIPE_RWSTREAM_PipeStalled;
- }
-
- Pipe_Freeze();
- Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber);
- Pipe_Unfreeze();
-
- if (Pipe_IsStalled())
- {
- USB_Host_ClearEndpointStall(Pipe_GetBoundEndpointAddress());
- 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)
-{
- uint8_t ErrorCode;
-
- 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);
-
- if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
- return ErrorCode;
-
- Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber);
-
- if ((ErrorCode = USB_Host_ClearEndpointStall(Pipe_GetBoundEndpointAddress())) != HOST_SENDCONTROL_Successful)
- return ErrorCode;
-
- Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber);
-
- if ((ErrorCode = USB_Host_ClearEndpointStall(Pipe_GetBoundEndpointAddress())) != HOST_SENDCONTROL_Successful)
- return ErrorCode;
-
- return HOST_SENDCONTROL_Successful;
-}
-
-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
-
projects / pub / lufa.git / blobdiff