diff options
author | Dean Camera <dean@fourwalledcubicle.com> | 2010-05-08 03:12:14 +0000 |
---|---|---|
committer | Dean Camera <dean@fourwalledcubicle.com> | 2010-05-08 03:12:14 +0000 |
commit | 071e02c6b6b4837fa9cf0b6d4c749994e02638d7 (patch) | |
tree | 960446788703b69f0bb285450be80c5b3d8cc22c /LUFA/Drivers/USB/Class/Host/MassStorage.c | |
parent | e331b531c6e6d93eb0eee42b9002074e8090ad18 (diff) | |
download | lufa-071e02c6b6b4837fa9cf0b6d4c749994e02638d7.tar.gz lufa-071e02c6b6b4837fa9cf0b6d4c749994e02638d7.tar.bz2 lufa-071e02c6b6b4837fa9cf0b6d4c749994e02638d7.zip |
Add svn:eol-style property to source files, so that the line endings are correctly converted to the target system's native end of line style.
Diffstat (limited to 'LUFA/Drivers/USB/Class/Host/MassStorage.c')
-rw-r--r-- | LUFA/Drivers/USB/Class/Host/MassStorage.c | 1188 |
1 files changed, 594 insertions, 594 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/MassStorage.c b/LUFA/Drivers/USB/Class/Host/MassStorage.c index f148f4ecc..6e84d07b8 100644 --- a/LUFA/Drivers/USB/Class/Host/MassStorage.c +++ b/LUFA/Drivers/USB/Class/Host/MassStorage.c @@ -1,594 +1,594 @@ -/*
- 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->Signature = 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 = 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)
- {
- .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)
- {
- .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)
- {
- .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;
-
- 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 = 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)
- {
- .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)
- {
- .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)
- {
- .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, 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->Signature = 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 = 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) + { + .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) + { + .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) + { + .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; + + 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 = 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) + { + .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) + { + .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) + { + .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 |