diff options
Diffstat (limited to 'LUFA/Drivers/USB/Class/Host/MassStorage.c')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Host/MassStorage.c | 629 |
1 files changed, 629 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/MassStorage.c b/LUFA/Drivers/USB/Class/Host/MassStorage.c new file mode 100644 index 0000000..0ecaca9 --- /dev/null +++ b/LUFA/Drivers/USB/Class/Host/MassStorage.c @@ -0,0 +1,629 @@ +/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ 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_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++)
+ {
+ if (PipeNum == MSInterfaceInfo->Config.DataINPipeNumber)
+ {
+ Pipe_ConfigurePipe(PipeNum, EP_TYPE_BULK, PIPE_TOKEN_IN,
+ DataINEndpoint->EndpointAddress, DataINEndpoint->EndpointSize,
+ MSInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
+
+ MSInterfaceInfo->State.DataINPipeSize = DataINEndpoint->EndpointSize;
+ }
+ else if (PipeNum == MSInterfaceInfo->Config.DataOUTPipeNumber)
+ {
+ Pipe_ConfigurePipe(PipeNum, EP_TYPE_BULK, PIPE_TOKEN_OUT,
+ DataOUTEndpoint->EndpointAddress, DataOUTEndpoint->EndpointSize,
+ MSInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
+
+ MSInterfaceInfo->State.DataOUTPipeSize = DataOUTEndpoint->EndpointSize;
+ }
+ }
+
+ 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;
+
+ SCSICommandBlock->Signature = MS_CBW_SIGNATURE;
+ 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 = 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 = 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, 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 != 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_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)
+ {
+ .DataTransferLength = 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 = 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 = 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;
+
+ SwapEndian_n(&DeviceCapacity->Blocks, sizeof(DeviceCapacity->Blocks));
+ SwapEndian_n(&DeviceCapacity->BlockSize, sizeof(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 = 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 = 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 = ((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 = ((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
+
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