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-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/ComponentName.c162
-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMass.h193
-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c1106
-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h371
-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBot.c599
-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBot.h193
-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassCbi.c612
-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassCbi.h140
-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassDiskInfo.c162
-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassDiskInfo.h129
-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.c1106
-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.h333
-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageDxe.inf87
-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageDxe.unibin0 -> 5346 bytes
-rw-r--r--Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageDxeExtra.unibin0 -> 1370 bytes
15 files changed, 5193 insertions, 0 deletions
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/ComponentName.c b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/ComponentName.c
new file mode 100644
index 0000000000..ad879afe59
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/ComponentName.c
@@ -0,0 +1,162 @@
+/** @file
+ UEFI Component Name(2) protocol implementation for USB Mass Storage Driver.
+
+Copyright (c) 2004 - 2011, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "UsbMass.h"
+
+//
+// EFI Component Name Protocol
+//
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gUsbMassStorageComponentName = {
+ UsbMassStorageGetDriverName,
+ UsbMassStorageGetControllerName,
+ "eng"
+};
+
+//
+// EFI Component Name 2 Protocol
+//
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gUsbMassStorageComponentName2 = {
+ (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) UsbMassStorageGetDriverName,
+ (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) UsbMassStorageGetControllerName,
+ "en"
+};
+
+
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
+mUsbMassStorageDriverNameTable[] = {
+ {"eng;en", L"Usb Mass Storage Driver"},
+ {NULL, NULL}
+};
+
+/**
+ Retrieves a Unicode string that is the user readable name of the driver.
+
+ This function retrieves the user readable name of a driver in the form of a
+ Unicode string. If the driver specified by This has a user readable name in
+ the language specified by Language, then a pointer to the driver name is
+ returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
+ by This does not support the language specified by Language,
+ then EFI_UNSUPPORTED is returned.
+
+ @param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+ EFI_COMPONENT_NAME_PROTOCOL instance.
+ @param Language A pointer to a Null-terminated ASCII string
+ array indicating the language. This is the
+ language of the driver name that the caller is
+ requesting, and it must match one of the
+ languages specified in SupportedLanguages. The
+ number of languages supported by a driver is up
+ to the driver writer. Language is specified
+ in RFC 4646 or ISO 639-2 language code format.
+ @param DriverName A pointer to the Unicode string to return.
+ This Unicode string is the name of the
+ driver specified by This in the language
+ specified by Language.
+
+ @retval EFI_SUCCESS The Unicode string for the Driver specified by
+ This and the language specified by Language was
+ returned in DriverName.
+ @retval EFI_INVALID_PARAMETER Language is NULL.
+ @retval EFI_INVALID_PARAMETER DriverName is NULL.
+ @retval EFI_UNSUPPORTED The driver specified by This does not support
+ the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassStorageGetDriverName (
+ IN EFI_COMPONENT_NAME_PROTOCOL *This,
+ IN CHAR8 *Language,
+ OUT CHAR16 **DriverName
+ )
+{
+ return LookupUnicodeString2 (
+ Language,
+ This->SupportedLanguages,
+ mUsbMassStorageDriverNameTable,
+ DriverName,
+ (BOOLEAN)(This == &gUsbMassStorageComponentName)
+ );
+}
+
+/**
+ Retrieves a Unicode string that is the user readable name of the controller
+ that is being managed by a driver.
+
+ This function retrieves the user readable name of the controller specified by
+ ControllerHandle and ChildHandle in the form of a Unicode string. If the
+ driver specified by This has a user readable name in the language specified by
+ Language, then a pointer to the controller name is returned in ControllerName,
+ and EFI_SUCCESS is returned. If the driver specified by This is not currently
+ managing the controller specified by ControllerHandle and ChildHandle,
+ then EFI_UNSUPPORTED is returned. If the driver specified by This does not
+ support the language specified by Language, then EFI_UNSUPPORTED is returned.
+
+ @param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+ EFI_COMPONENT_NAME_PROTOCOL instance.
+ @param ControllerHandle The handle of a controller that the driver
+ specified by This is managing. This handle
+ specifies the controller whose name is to be
+ returned.
+ @param ChildHandle The handle of the child controller to retrieve
+ the name of. This is an optional parameter that
+ may be NULL. It will be NULL for device
+ drivers. It will also be NULL for a bus drivers
+ that wish to retrieve the name of the bus
+ controller. It will not be NULL for a bus
+ driver that wishes to retrieve the name of a
+ child controller.
+ @param Language A pointer to a Null-terminated ASCII string
+ array indicating the language. This is the
+ language of the driver name that the caller is
+ requesting, and it must match one of the
+ languages specified in SupportedLanguages. The
+ number of languages supported by a driver is up
+ to the driver writer. Language is specified in
+ RFC 4646 or ISO 639-2 language code format.
+ @param ControllerName A pointer to the Unicode string to return.
+ This Unicode string is the name of the
+ controller specified by ControllerHandle and
+ ChildHandle in the language specified by
+ Language from the point of view of the driver
+ specified by This.
+
+ @retval EFI_SUCCESS The Unicode string for the user readable name in
+ the language specified by Language for the
+ driver specified by This was returned in
+ DriverName.
+ @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
+ @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
+ EFI_HANDLE.
+ @retval EFI_INVALID_PARAMETER Language is NULL.
+ @retval EFI_INVALID_PARAMETER ControllerName is NULL.
+ @retval EFI_UNSUPPORTED The driver specified by This is not currently
+ managing the controller specified by
+ ControllerHandle and ChildHandle.
+ @retval EFI_UNSUPPORTED The driver specified by This does not support
+ the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassStorageGetControllerName (
+ IN EFI_COMPONENT_NAME_PROTOCOL *This,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_HANDLE ChildHandle OPTIONAL,
+ IN CHAR8 *Language,
+ OUT CHAR16 **ControllerName
+ )
+{
+ return EFI_UNSUPPORTED;
+}
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMass.h b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMass.h
new file mode 100644
index 0000000000..ebfb254de6
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMass.h
@@ -0,0 +1,193 @@
+/** @file
+ Definition of USB Mass Storage Class and its value, USB Mass Transport Protocol,
+ and other common definitions.
+
+Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _EFI_USBMASS_H_
+#define _EFI_USBMASS_H_
+
+
+#include <Uefi.h>
+#include <IndustryStandard/Scsi.h>
+#include <Protocol/BlockIo.h>
+#include <Protocol/UsbIo.h>
+#include <Protocol/DevicePath.h>
+#include <Protocol/DiskInfo.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/DevicePathLib.h>
+
+typedef struct _USB_MASS_TRANSPORT USB_MASS_TRANSPORT;
+typedef struct _USB_MASS_DEVICE USB_MASS_DEVICE;
+
+#include "UsbMassBot.h"
+#include "UsbMassCbi.h"
+#include "UsbMassBoot.h"
+#include "UsbMassDiskInfo.h"
+#include "UsbMassImpl.h"
+
+#define USB_IS_IN_ENDPOINT(EndPointAddr) (((EndPointAddr) & BIT7) == BIT7)
+#define USB_IS_OUT_ENDPOINT(EndPointAddr) (((EndPointAddr) & BIT7) == 0)
+#define USB_IS_BULK_ENDPOINT(Attribute) (((Attribute) & (BIT0 | BIT1)) == USB_ENDPOINT_BULK)
+#define USB_IS_INTERRUPT_ENDPOINT(Attribute) (((Attribute) & (BIT0 | BIT1)) == USB_ENDPOINT_INTERRUPT)
+#define USB_IS_ERROR(Result, Error) (((Result) & (Error)) != 0)
+
+#define USB_MASS_1_MILLISECOND 1000
+#define USB_MASS_1_SECOND (1000 * USB_MASS_1_MILLISECOND)
+
+#define USB_MASS_CMD_SUCCESS 0
+#define USB_MASS_CMD_FAIL 1
+#define USB_MASS_CMD_PERSISTENT 2
+
+/**
+ Initializes USB transport protocol.
+
+ This function initializes the USB mass storage class transport protocol.
+ It will save its context in the Context if Context isn't NULL.
+
+ @param UsbIo The USB I/O Protocol instance
+ @param Context The buffer to save the context to
+
+ @retval EFI_SUCCESS The device is successfully initialized.
+ @retval EFI_UNSUPPORTED The transport protocol doesn't support the device.
+ @retval Other The USB transport initialization fails.
+
+**/
+typedef
+EFI_STATUS
+(*USB_MASS_INIT_TRANSPORT) (
+ IN EFI_USB_IO_PROTOCOL *Usb,
+ OUT VOID **Context OPTIONAL
+ );
+
+/**
+ Execute USB mass storage command through the transport protocol.
+
+ @param Context The USB Transport Protocol.
+ @param Cmd The command to transfer to device
+ @param CmdLen The length of the command
+ @param DataDir The direction of data transfer
+ @param Data The buffer to hold the data
+ @param DataLen The length of the buffer
+ @param Lun Should be 0, this field for bot only
+ @param Timeout The time to wait
+ @param CmdStatus The result of the command execution
+
+ @retval EFI_SUCCESS The command is executed successfully.
+ @retval Other Failed to execute the command
+
+**/
+typedef
+EFI_STATUS
+(*USB_MASS_EXEC_COMMAND) (
+ IN VOID *Context,
+ IN VOID *Cmd,
+ IN UINT8 CmdLen,
+ IN EFI_USB_DATA_DIRECTION DataDir,
+ IN VOID *Data,
+ IN UINT32 DataLen,
+ IN UINT8 Lun,
+ IN UINT32 Timeout,
+ OUT UINT32 *CmdStatus
+ );
+
+/**
+ Reset the USB mass storage device by Transport protocol.
+
+ @param Context The USB Transport Protocol
+ @param ExtendedVerification The flag controlling the rule of reset.
+ Not used here.
+
+ @retval EFI_SUCCESS The device is reset.
+ @retval Others Failed to reset the device.
+
+**/
+typedef
+EFI_STATUS
+(*USB_MASS_RESET) (
+ IN VOID *Context,
+ IN BOOLEAN ExtendedVerification
+ );
+
+/**
+ Get the max LUN (Logical Unit Number) of USB mass storage device.
+
+ @param Context The context of the transport protocol.
+ @param MaxLun Return pointer to the max number of LUN. (e.g. MaxLun=1 means LUN0 and
+ LUN1 in all.)
+
+ @retval EFI_SUCCESS Max LUN is got successfully.
+ @retval Others Fail to execute this request.
+
+**/
+typedef
+EFI_STATUS
+(*USB_MASS_GET_MAX_LUN) (
+ IN VOID *Context,
+ IN UINT8 *MaxLun
+ );
+
+/**
+ Clean up the transport protocol's resource.
+
+ @param Context The instance of transport protocol.
+
+ @retval EFI_SUCCESS The resource is cleaned up.
+
+**/
+typedef
+EFI_STATUS
+(*USB_MASS_CLEAN_UP) (
+ IN VOID *Context
+ );
+
+///
+/// This structure contains information necessary to select the
+/// proper transport protocol. The mass storage class defines
+/// two transport protocols. One is the CBI, and the other is BOT.
+/// CBI is being obseleted. The design is made modular by this
+/// structure so that the CBI protocol can be easily removed when
+/// it is no longer necessary.
+///
+struct _USB_MASS_TRANSPORT {
+ UINT8 Protocol;
+ USB_MASS_INIT_TRANSPORT Init; ///< Initialize the mass storage transport protocol
+ USB_MASS_EXEC_COMMAND ExecCommand; ///< Transport command to the device then get result
+ USB_MASS_RESET Reset; ///< Reset the device
+ USB_MASS_GET_MAX_LUN GetMaxLun; ///< Get max lun, only for bot
+ USB_MASS_CLEAN_UP CleanUp; ///< Clean up the resources.
+};
+
+struct _USB_MASS_DEVICE {
+ UINT32 Signature;
+ EFI_HANDLE Controller;
+ EFI_USB_IO_PROTOCOL *UsbIo;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ EFI_BLOCK_IO_PROTOCOL BlockIo;
+ EFI_BLOCK_IO_MEDIA BlockIoMedia;
+ BOOLEAN OpticalStorage;
+ UINT8 Lun; ///< Logical Unit Number
+ UINT8 Pdt; ///< Peripheral Device Type
+ USB_MASS_TRANSPORT *Transport; ///< USB mass storage transport protocol
+ VOID *Context;
+ EFI_DISK_INFO_PROTOCOL DiskInfo;
+ USB_BOOT_INQUIRY_DATA InquiryData;
+ BOOLEAN Cdb16Byte;
+};
+
+#endif
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c
new file mode 100644
index 0000000000..9f99650703
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c
@@ -0,0 +1,1106 @@
+/** @file
+ Implementation of the command set of USB Mass Storage Specification
+ for Bootability, Revision 1.0.
+
+Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "UsbMass.h"
+
+/**
+ Execute REQUEST SENSE Command to retrieve sense data from device.
+
+ @param UsbMass The device whose sense data is requested.
+
+ @retval EFI_SUCCESS The command is excuted successfully.
+ @retval EFI_DEVICE_ERROR Failed to request sense.
+ @retval EFI_NO_RESPONSE The device media doesn't response this request.
+ @retval EFI_INVALID_PARAMETER The command has some invalid parameters.
+ @retval EFI_WRITE_PROTECTED The device is write protected.
+ @retval EFI_MEDIA_CHANGED The device media has been changed.
+
+**/
+EFI_STATUS
+UsbBootRequestSense (
+ IN USB_MASS_DEVICE *UsbMass
+ )
+{
+ USB_BOOT_REQUEST_SENSE_CMD SenseCmd;
+ USB_BOOT_REQUEST_SENSE_DATA SenseData;
+ EFI_BLOCK_IO_MEDIA *Media;
+ USB_MASS_TRANSPORT *Transport;
+ EFI_STATUS Status;
+ UINT32 CmdResult;
+
+ Transport = UsbMass->Transport;
+
+ //
+ // Request the sense data from the device
+ //
+ ZeroMem (&SenseCmd, sizeof (USB_BOOT_REQUEST_SENSE_CMD));
+ ZeroMem (&SenseData, sizeof (USB_BOOT_REQUEST_SENSE_DATA));
+
+ SenseCmd.OpCode = USB_BOOT_REQUEST_SENSE_OPCODE;
+ SenseCmd.Lun = (UINT8) (USB_BOOT_LUN (UsbMass->Lun));
+ SenseCmd.AllocLen = (UINT8) sizeof (USB_BOOT_REQUEST_SENSE_DATA);
+
+ Status = Transport->ExecCommand (
+ UsbMass->Context,
+ &SenseCmd,
+ sizeof (USB_BOOT_REQUEST_SENSE_CMD),
+ EfiUsbDataIn,
+ &SenseData,
+ sizeof (USB_BOOT_REQUEST_SENSE_DATA),
+ UsbMass->Lun,
+ USB_BOOT_GENERAL_CMD_TIMEOUT,
+ &CmdResult
+ );
+ if (EFI_ERROR (Status) || CmdResult != USB_MASS_CMD_SUCCESS) {
+ DEBUG ((EFI_D_ERROR, "UsbBootRequestSense: (%r) CmdResult=0x%x\n", Status, CmdResult));
+ if (!EFI_ERROR (Status)) {
+ Status = EFI_DEVICE_ERROR;
+ }
+ return Status;
+ }
+
+ //
+ // If sense data is retrieved successfully, interpret the sense data
+ // and update the media status if necessary.
+ //
+ Media = &UsbMass->BlockIoMedia;
+
+ switch (USB_BOOT_SENSE_KEY (SenseData.SenseKey)) {
+
+ case USB_BOOT_SENSE_NO_SENSE:
+ Status = EFI_NO_RESPONSE;
+ break;
+
+ case USB_BOOT_SENSE_RECOVERED:
+ //
+ // Suppose hardware can handle this case, and recover later by itself
+ //
+ Status = EFI_NOT_READY;
+ break;
+
+ case USB_BOOT_SENSE_NOT_READY:
+ Status = EFI_DEVICE_ERROR;
+ if (SenseData.Asc == USB_BOOT_ASC_NO_MEDIA) {
+ Media->MediaPresent = FALSE;
+ Status = EFI_NO_MEDIA;
+ } else if (SenseData.Asc == USB_BOOT_ASC_NOT_READY) {
+ Status = EFI_NOT_READY;
+ }
+ break;
+
+ case USB_BOOT_SENSE_ILLEGAL_REQUEST:
+ Status = EFI_INVALID_PARAMETER;
+ break;
+
+ case USB_BOOT_SENSE_UNIT_ATTENTION:
+ Status = EFI_DEVICE_ERROR;
+ if (SenseData.Asc == USB_BOOT_ASC_MEDIA_CHANGE) {
+ //
+ // If MediaChange, reset ReadOnly and new MediaId
+ //
+ Status = EFI_MEDIA_CHANGED;
+ Media->ReadOnly = FALSE;
+ Media->MediaId++;
+ }
+ break;
+
+ case USB_BOOT_SENSE_DATA_PROTECT:
+ Status = EFI_WRITE_PROTECTED;
+ Media->ReadOnly = TRUE;
+ break;
+
+ default:
+ Status = EFI_DEVICE_ERROR;
+ break;
+ }
+
+ DEBUG ((EFI_D_INFO, "UsbBootRequestSense: (%r) with sense key %x/%x/%x\n",
+ Status,
+ USB_BOOT_SENSE_KEY (SenseData.SenseKey),
+ SenseData.Asc,
+ SenseData.Ascq
+ ));
+
+ return Status;
+}
+
+
+/**
+ Execute the USB mass storage bootability commands.
+
+ This function executes the USB mass storage bootability commands.
+ If execution failed, retrieve the error by REQUEST_SENSE, then
+ update the device's status, such as ReadyOnly.
+
+ @param UsbMass The device to issue commands to
+ @param Cmd The command to execute
+ @param CmdLen The length of the command
+ @param DataDir The direction of data transfer
+ @param Data The buffer to hold the data
+ @param DataLen The length of expected data
+ @param Timeout The timeout used to transfer
+
+ @retval EFI_SUCCESS Command is excuted successfully
+ @retval Others Command execution failed.
+
+**/
+EFI_STATUS
+UsbBootExecCmd (
+ IN USB_MASS_DEVICE *UsbMass,
+ IN VOID *Cmd,
+ IN UINT8 CmdLen,
+ IN EFI_USB_DATA_DIRECTION DataDir,
+ IN VOID *Data,
+ IN UINT32 DataLen,
+ IN UINT32 Timeout
+ )
+{
+ USB_MASS_TRANSPORT *Transport;
+ EFI_STATUS Status;
+ UINT32 CmdResult;
+
+ Transport = UsbMass->Transport;
+ Status = Transport->ExecCommand (
+ UsbMass->Context,
+ Cmd,
+ CmdLen,
+ DataDir,
+ Data,
+ DataLen,
+ UsbMass->Lun,
+ Timeout,
+ &CmdResult
+ );
+
+ if (Status == EFI_TIMEOUT) {
+ DEBUG ((EFI_D_ERROR, "UsbBootExecCmd: Timeout to Exec 0x%x Cmd\n", *(UINT8 *)Cmd));
+ return EFI_TIMEOUT;
+ }
+
+ //
+ // If ExecCommand() returns no error and CmdResult is success,
+ // then the commnad transfer is successful.
+ //
+ if ((CmdResult == USB_MASS_CMD_SUCCESS) && !EFI_ERROR (Status)) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // If command execution failed, then retrieve error info via sense request.
+ //
+ return UsbBootRequestSense (UsbMass);
+}
+
+
+/**
+ Execute the USB mass storage bootability commands with retrial.
+
+ This function executes USB mass storage bootability commands.
+ If the device isn't ready, wait for it. If the device is ready
+ and error occurs, retry the command again until it exceeds the
+ limit of retrial times.
+
+ @param UsbMass The device to issue commands to
+ @param Cmd The command to execute
+ @param CmdLen The length of the command
+ @param DataDir The direction of data transfer
+ @param Data The buffer to hold the data
+ @param DataLen The length of expected data
+ @param Timeout The timeout used to transfer
+
+ @retval EFI_SUCCESS The command is executed successfully.
+ @retval EFI_MEDIA_CHANGED The device media has been changed.
+ @retval Others Command execution failed after retrial.
+
+**/
+EFI_STATUS
+UsbBootExecCmdWithRetry (
+ IN USB_MASS_DEVICE *UsbMass,
+ IN VOID *Cmd,
+ IN UINT8 CmdLen,
+ IN EFI_USB_DATA_DIRECTION DataDir,
+ IN VOID *Data,
+ IN UINT32 DataLen,
+ IN UINT32 Timeout
+ )
+{
+ EFI_STATUS Status;
+ UINTN Retry;
+ EFI_EVENT TimeoutEvt;
+
+ Retry = 0;
+ Status = EFI_SUCCESS;
+ Status = gBS->CreateEvent (
+ EVT_TIMER,
+ TPL_CALLBACK,
+ NULL,
+ NULL,
+ &TimeoutEvt
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = gBS->SetTimer (TimeoutEvt, TimerRelative, EFI_TIMER_PERIOD_SECONDS(60));
+ if (EFI_ERROR (Status)) {
+ goto EXIT;
+ }
+
+ //
+ // Execute the cmd and retry if it fails.
+ //
+ while (EFI_ERROR (gBS->CheckEvent (TimeoutEvt))) {
+ Status = UsbBootExecCmd (
+ UsbMass,
+ Cmd,
+ CmdLen,
+ DataDir,
+ Data,
+ DataLen,
+ Timeout
+ );
+ if (Status == EFI_SUCCESS || Status == EFI_MEDIA_CHANGED || Status == EFI_NO_MEDIA) {
+ break;
+ }
+ //
+ // If the sense data shows the drive is not ready, we need execute the cmd again.
+ // We limit the upper boundary to 60 seconds.
+ //
+ if (Status == EFI_NOT_READY) {
+ continue;
+ }
+ //
+ // If the status is other error, then just retry 5 times.
+ //
+ if (Retry++ >= USB_BOOT_COMMAND_RETRY) {
+ break;
+ }
+ }
+
+EXIT:
+ if (TimeoutEvt != NULL) {
+ gBS->CloseEvent (TimeoutEvt);
+ }
+
+ return Status;
+}
+
+
+/**
+ Execute TEST UNIT READY command to check if the device is ready.
+
+ @param UsbMass The device to test
+
+ @retval EFI_SUCCESS The device is ready.
+ @retval Others Device not ready.
+
+**/
+EFI_STATUS
+UsbBootIsUnitReady (
+ IN USB_MASS_DEVICE *UsbMass
+ )
+{
+ USB_BOOT_TEST_UNIT_READY_CMD TestCmd;
+
+ ZeroMem (&TestCmd, sizeof (USB_BOOT_TEST_UNIT_READY_CMD));
+
+ TestCmd.OpCode = USB_BOOT_TEST_UNIT_READY_OPCODE;
+ TestCmd.Lun = (UINT8) (USB_BOOT_LUN (UsbMass->Lun));
+
+ return UsbBootExecCmdWithRetry (
+ UsbMass,
+ &TestCmd,
+ (UINT8) sizeof (USB_BOOT_TEST_UNIT_READY_CMD),
+ EfiUsbNoData,
+ NULL,
+ 0,
+ USB_BOOT_GENERAL_CMD_TIMEOUT
+ );
+}
+
+
+/**
+ Execute INQUIRY Command to request information regarding parameters of
+ the device be sent to the host computer.
+
+ @param UsbMass The device to inquire.
+
+ @retval EFI_SUCCESS INQUIRY Command is executed successfully.
+ @retval Others INQUIRY Command is not executed successfully.
+
+**/
+EFI_STATUS
+UsbBootInquiry (
+ IN USB_MASS_DEVICE *UsbMass
+ )
+{
+ USB_BOOT_INQUIRY_CMD InquiryCmd;
+ EFI_BLOCK_IO_MEDIA *Media;
+ EFI_STATUS Status;
+
+ Media = &(UsbMass->BlockIoMedia);
+
+ ZeroMem (&InquiryCmd, sizeof (USB_BOOT_INQUIRY_CMD));
+ ZeroMem (&UsbMass->InquiryData, sizeof (USB_BOOT_INQUIRY_DATA));
+
+ InquiryCmd.OpCode = USB_BOOT_INQUIRY_OPCODE;
+ InquiryCmd.Lun = (UINT8) (USB_BOOT_LUN (UsbMass->Lun));
+ InquiryCmd.AllocLen = (UINT8) sizeof (USB_BOOT_INQUIRY_DATA);
+
+ Status = UsbBootExecCmdWithRetry (
+ UsbMass,
+ &InquiryCmd,
+ (UINT8) sizeof (USB_BOOT_INQUIRY_CMD),
+ EfiUsbDataIn,
+ &UsbMass->InquiryData,
+ sizeof (USB_BOOT_INQUIRY_DATA),
+ USB_BOOT_GENERAL_CMD_TIMEOUT
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Get information from PDT (Peripheral Device Type) field and Removable Medium Bit
+ // from the inquiry data.
+ //
+ UsbMass->Pdt = (UINT8) (USB_BOOT_PDT (UsbMass->InquiryData.Pdt));
+ Media->RemovableMedia = (BOOLEAN) (USB_BOOT_REMOVABLE (UsbMass->InquiryData.Removable));
+ //
+ // Set block size to the default value of 512 Bytes, in case no media is present at first time.
+ //
+ Media->BlockSize = 0x0200;
+
+ return Status;
+}
+
+/**
+ Execute READ CAPACITY 16 bytes command to request information regarding
+ the capacity of the installed medium of the device.
+
+ This function executes READ CAPACITY 16 bytes command to get the capacity
+ of the USB mass storage media, including the presence, block size,
+ and last block number.
+
+ @param UsbMass The device to retireve disk gemotric.
+
+ @retval EFI_SUCCESS The disk geometry is successfully retrieved.
+ @retval EFI_NOT_READY The returned block size is zero.
+ @retval Other READ CAPACITY 16 bytes command execution failed.
+
+**/
+EFI_STATUS
+UsbBootReadCapacity16 (
+ IN USB_MASS_DEVICE *UsbMass
+ )
+{
+ UINT8 CapacityCmd[16];
+ EFI_SCSI_DISK_CAPACITY_DATA16 CapacityData;
+ EFI_BLOCK_IO_MEDIA *Media;
+ EFI_STATUS Status;
+ UINT32 BlockSize;
+
+ Media = &UsbMass->BlockIoMedia;
+
+ Media->MediaPresent = FALSE;
+ Media->LastBlock = 0;
+ Media->BlockSize = 0;
+
+ ZeroMem (CapacityCmd, sizeof (CapacityCmd));
+ ZeroMem (&CapacityData, sizeof (CapacityData));
+
+ CapacityCmd[0] = EFI_SCSI_OP_READ_CAPACITY16;
+ CapacityCmd[1] = 0x10;
+ //
+ // Partial medium indicator, set the bytes 2 ~ 9 of the Cdb as ZERO.
+ //
+ ZeroMem ((CapacityCmd + 2), 8);
+
+ CapacityCmd[13] = sizeof (CapacityData);
+
+ Status = UsbBootExecCmdWithRetry (
+ UsbMass,
+ CapacityCmd,
+ (UINT8) sizeof (CapacityCmd),
+ EfiUsbDataIn,
+ &CapacityData,
+ sizeof (CapacityData),
+ USB_BOOT_GENERAL_CMD_TIMEOUT
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Get the information on media presence, block size, and last block number
+ // from READ CAPACITY data.
+ //
+ Media->MediaPresent = TRUE;
+ Media->LastBlock = SwapBytes64 (ReadUnaligned64 ((CONST UINT64 *) &(CapacityData.LastLba7)));
+
+ BlockSize = SwapBytes32 (ReadUnaligned32 ((CONST UINT32 *) &(CapacityData.BlockSize3)));
+
+ Media->LowestAlignedLba = (CapacityData.LowestAlignLogic2 << 8) |
+ CapacityData.LowestAlignLogic1;
+ Media->LogicalBlocksPerPhysicalBlock = (1 << CapacityData.LogicPerPhysical);
+ if (BlockSize == 0) {
+ //
+ // Get sense data
+ //
+ return UsbBootRequestSense (UsbMass);
+ } else {
+ Media->BlockSize = BlockSize;
+ }
+
+ return Status;
+}
+
+
+/**
+ Execute READ CAPACITY command to request information regarding
+ the capacity of the installed medium of the device.
+
+ This function executes READ CAPACITY command to get the capacity
+ of the USB mass storage media, including the presence, block size,
+ and last block number.
+
+ @param UsbMass The device to retireve disk gemotric.
+
+ @retval EFI_SUCCESS The disk geometry is successfully retrieved.
+ @retval EFI_NOT_READY The returned block size is zero.
+ @retval Other READ CAPACITY command execution failed.
+
+**/
+EFI_STATUS
+UsbBootReadCapacity (
+ IN USB_MASS_DEVICE *UsbMass
+ )
+{
+ USB_BOOT_READ_CAPACITY_CMD CapacityCmd;
+ USB_BOOT_READ_CAPACITY_DATA CapacityData;
+ EFI_BLOCK_IO_MEDIA *Media;
+ EFI_STATUS Status;
+ UINT32 BlockSize;
+
+ Media = &UsbMass->BlockIoMedia;
+
+ ZeroMem (&CapacityCmd, sizeof (USB_BOOT_READ_CAPACITY_CMD));
+ ZeroMem (&CapacityData, sizeof (USB_BOOT_READ_CAPACITY_DATA));
+
+ CapacityCmd.OpCode = USB_BOOT_READ_CAPACITY_OPCODE;
+ CapacityCmd.Lun = (UINT8) (USB_BOOT_LUN (UsbMass->Lun));
+
+ Status = UsbBootExecCmdWithRetry (
+ UsbMass,
+ &CapacityCmd,
+ (UINT8) sizeof (USB_BOOT_READ_CAPACITY_CMD),
+ EfiUsbDataIn,
+ &CapacityData,
+ sizeof (USB_BOOT_READ_CAPACITY_DATA),
+ USB_BOOT_GENERAL_CMD_TIMEOUT
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Get the information on media presence, block size, and last block number
+ // from READ CAPACITY data.
+ //
+ Media->MediaPresent = TRUE;
+ Media->LastBlock = SwapBytes32 (ReadUnaligned32 ((CONST UINT32 *) CapacityData.LastLba));
+
+ BlockSize = SwapBytes32 (ReadUnaligned32 ((CONST UINT32 *) CapacityData.BlockLen));
+ if (BlockSize == 0) {
+ //
+ // Get sense data
+ //
+ return UsbBootRequestSense (UsbMass);
+ } else {
+ Media->BlockSize = BlockSize;
+ }
+
+ if (Media->LastBlock == 0xFFFFFFFF) {
+ Status = UsbBootReadCapacity16 (UsbMass);
+ if (!EFI_ERROR (Status)) {
+ UsbMass->Cdb16Byte = TRUE;
+ }
+ }
+
+ return Status;
+}
+
+/**
+ Retrieves SCSI mode sense information via MODE SENSE(6) command.
+
+ @param UsbMass The device whose sense data is requested.
+
+ @retval EFI_SUCCESS SCSI mode sense information retrieved successfully.
+ @retval Other Command execution failed.
+
+**/
+EFI_STATUS
+UsbScsiModeSense (
+ IN USB_MASS_DEVICE *UsbMass
+ )
+{
+ EFI_STATUS Status;
+ USB_SCSI_MODE_SENSE6_CMD ModeSenseCmd;
+ USB_SCSI_MODE_SENSE6_PARA_HEADER ModeParaHeader;
+ EFI_BLOCK_IO_MEDIA *Media;
+
+ Media = &UsbMass->BlockIoMedia;
+
+ ZeroMem (&ModeSenseCmd, sizeof (USB_SCSI_MODE_SENSE6_CMD));
+ ZeroMem (&ModeParaHeader, sizeof (USB_SCSI_MODE_SENSE6_PARA_HEADER));
+
+ //
+ // MODE SENSE(6) command is defined in Section 8.2.10 of SCSI-2 Spec
+ //
+ ModeSenseCmd.OpCode = USB_SCSI_MODE_SENSE6_OPCODE;
+ ModeSenseCmd.Lun = (UINT8) USB_BOOT_LUN (UsbMass->Lun);
+ ModeSenseCmd.PageCode = 0x3F;
+ ModeSenseCmd.AllocateLen = (UINT8) sizeof (USB_SCSI_MODE_SENSE6_PARA_HEADER);
+
+ Status = UsbBootExecCmdWithRetry (
+ UsbMass,
+ &ModeSenseCmd,
+ (UINT8) sizeof (USB_SCSI_MODE_SENSE6_CMD),
+ EfiUsbDataIn,
+ &ModeParaHeader,
+ sizeof (USB_SCSI_MODE_SENSE6_PARA_HEADER),
+ USB_BOOT_GENERAL_CMD_TIMEOUT
+ );
+
+ //
+ // Format of device-specific parameter byte of the mode parameter header is defined in
+ // Section 8.2.10 of SCSI-2 Spec.
+ // BIT7 of this byte is indicates whether the medium is write protected.
+ //
+ if (!EFI_ERROR (Status)) {
+ Media->ReadOnly = (BOOLEAN) ((ModeParaHeader.DevicePara & BIT7) != 0);
+ }
+
+ return Status;
+}
+
+
+/**
+ Get the parameters for the USB mass storage media.
+
+ This function get the parameters for the USB mass storage media,
+ It is used both to initialize the media during the Start() phase
+ of Driver Binding Protocol and to re-initialize it when the media is
+ changed. Althought the RemoveableMedia is unlikely to change,
+ it is also included here.
+
+ @param UsbMass The device to retrieve disk gemotric.
+
+ @retval EFI_SUCCESS The disk gemotric is successfully retrieved.
+ @retval Other Failed to get the parameters.
+
+**/
+EFI_STATUS
+UsbBootGetParams (
+ IN USB_MASS_DEVICE *UsbMass
+ )
+{
+ EFI_BLOCK_IO_MEDIA *Media;
+ EFI_STATUS Status;
+
+ Media = &(UsbMass->BlockIoMedia);
+
+ Status = UsbBootInquiry (UsbMass);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "UsbBootGetParams: UsbBootInquiry (%r)\n", Status));
+ return Status;
+ }
+
+ //
+ // According to USB Mass Storage Specification for Bootability, only following
+ // 4 Peripheral Device Types are in spec.
+ //
+ if ((UsbMass->Pdt != USB_PDT_DIRECT_ACCESS) &&
+ (UsbMass->Pdt != USB_PDT_CDROM) &&
+ (UsbMass->Pdt != USB_PDT_OPTICAL) &&
+ (UsbMass->Pdt != USB_PDT_SIMPLE_DIRECT)) {
+ DEBUG ((EFI_D_ERROR, "UsbBootGetParams: Found an unsupported peripheral type[%d]\n", UsbMass->Pdt));
+ return EFI_UNSUPPORTED;
+ }
+
+ //
+ // Don't use the Removable bit in inquiry data to test whether the media
+ // is removable because many flash disks wrongly set this bit.
+ //
+ if ((UsbMass->Pdt == USB_PDT_CDROM) || (UsbMass->Pdt == USB_PDT_OPTICAL)) {
+ //
+ // CD-Rom device and Non-CD optical device
+ //
+ UsbMass->OpticalStorage = TRUE;
+ //
+ // Default value 2048 Bytes, in case no media present at first time
+ //
+ Media->BlockSize = 0x0800;
+ }
+
+ Status = UsbBootDetectMedia (UsbMass);
+
+ return Status;
+}
+
+
+/**
+ Detect whether the removable media is present and whether it has changed.
+
+ @param UsbMass The device to check.
+
+ @retval EFI_SUCCESS The media status is successfully checked.
+ @retval Other Failed to detect media.
+
+**/
+EFI_STATUS
+UsbBootDetectMedia (
+ IN USB_MASS_DEVICE *UsbMass
+ )
+{
+ EFI_BLOCK_IO_MEDIA OldMedia;
+ EFI_BLOCK_IO_MEDIA *Media;
+ UINT8 CmdSet;
+ EFI_TPL OldTpl;
+ EFI_STATUS Status;
+
+ Media = &UsbMass->BlockIoMedia;
+
+ CopyMem (&OldMedia, &(UsbMass->BlockIoMedia), sizeof (EFI_BLOCK_IO_MEDIA));
+
+ CmdSet = ((EFI_USB_INTERFACE_DESCRIPTOR *) (UsbMass->Context))->InterfaceSubClass;
+
+ Status = UsbBootIsUnitReady (UsbMass);
+ if (EFI_ERROR (Status) && (Status != EFI_MEDIA_CHANGED)) {
+ goto ON_ERROR;
+ }
+
+ if ((UsbMass->Pdt != USB_PDT_CDROM) && (CmdSet == USB_MASS_STORE_SCSI)) {
+ //
+ // MODE SENSE is required for the device with PDT of 0x00/0x07/0x0E,
+ // according to Section 4 of USB Mass Storage Specification for Bootability.
+ // MODE SENSE(10) is useless here, while MODE SENSE(6) defined in SCSI
+ // could get the information of Write Protected.
+ // Since not all device support this command, skip if fail.
+ //
+ UsbScsiModeSense (UsbMass);
+ }
+
+ Status = UsbBootReadCapacity (UsbMass);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "UsbBootDetectMedia: UsbBootReadCapacity (%r)\n", Status));
+ goto ON_ERROR;
+ }
+
+ return EFI_SUCCESS;
+
+ON_ERROR:
+ //
+ // Detect whether it is necessary to reinstall the Block I/O Protocol.
+ //
+ // MediaId may change in RequestSense for MediaChanged
+ // MediaPresent may change in RequestSense for NoMedia
+ // MediaReadOnly may change in RequestSense for WriteProtected or MediaChanged
+ // MediaPresent/BlockSize/LastBlock may change in ReadCapacity
+ //
+ if ((Media->MediaId != OldMedia.MediaId) ||
+ (Media->MediaPresent != OldMedia.MediaPresent) ||
+ (Media->ReadOnly != OldMedia.ReadOnly) ||
+ (Media->BlockSize != OldMedia.BlockSize) ||
+ (Media->LastBlock != OldMedia.LastBlock)) {
+
+ //
+ // This function is called by Block I/O Protocol APIs, which run at TPL_NOTIFY.
+ // Here we temporarily restore TPL to TPL_CALLBACK to invoke ReinstallProtocolInterface().
+ //
+ OldTpl = EfiGetCurrentTpl ();
+ gBS->RestoreTPL (TPL_CALLBACK);
+
+ gBS->ReinstallProtocolInterface (
+ UsbMass->Controller,
+ &gEfiBlockIoProtocolGuid,
+ &UsbMass->BlockIo,
+ &UsbMass->BlockIo
+ );
+
+ ASSERT (EfiGetCurrentTpl () == TPL_CALLBACK);
+ gBS->RaiseTPL (OldTpl);
+
+ //
+ // Update MediaId after reinstalling Block I/O Protocol.
+ //
+ if (Media->MediaPresent != OldMedia.MediaPresent) {
+ if (Media->MediaPresent) {
+ Media->MediaId = 1;
+ } else {
+ Media->MediaId = 0;
+ }
+ }
+
+ if ((Media->ReadOnly != OldMedia.ReadOnly) ||
+ (Media->BlockSize != OldMedia.BlockSize) ||
+ (Media->LastBlock != OldMedia.LastBlock)) {
+ Media->MediaId++;
+ }
+ }
+
+ return Status;
+}
+
+
+/**
+ Read some blocks from the device.
+
+ @param UsbMass The USB mass storage device to read from
+ @param Lba The start block number
+ @param TotalBlock Total block number to read
+ @param Buffer The buffer to read to
+
+ @retval EFI_SUCCESS Data are read into the buffer
+ @retval Others Failed to read all the data
+
+**/
+EFI_STATUS
+UsbBootReadBlocks (
+ IN USB_MASS_DEVICE *UsbMass,
+ IN UINT32 Lba,
+ IN UINTN TotalBlock,
+ OUT UINT8 *Buffer
+ )
+{
+ USB_BOOT_READ10_CMD ReadCmd;
+ EFI_STATUS Status;
+ UINT16 Count;
+ UINT32 BlockSize;
+ UINT32 ByteSize;
+ UINT32 Timeout;
+
+ BlockSize = UsbMass->BlockIoMedia.BlockSize;
+ Status = EFI_SUCCESS;
+
+ while (TotalBlock > 0) {
+ //
+ // Split the total blocks into smaller pieces to ease the pressure
+ // on the device. We must split the total block because the READ10
+ // command only has 16 bit transfer length (in the unit of block).
+ //
+ Count = (UINT16)((TotalBlock < USB_BOOT_IO_BLOCKS) ? TotalBlock : USB_BOOT_IO_BLOCKS);
+ ByteSize = (UINT32)Count * BlockSize;
+
+ //
+ // USB command's upper limit timeout is 5s. [USB2.0-9.2.6.1]
+ //
+ Timeout = (UINT32) USB_BOOT_GENERAL_CMD_TIMEOUT;
+
+ //
+ // Fill in the command then execute
+ //
+ ZeroMem (&ReadCmd, sizeof (USB_BOOT_READ10_CMD));
+
+ ReadCmd.OpCode = USB_BOOT_READ10_OPCODE;
+ ReadCmd.Lun = (UINT8) (USB_BOOT_LUN (UsbMass->Lun));
+ WriteUnaligned32 ((UINT32 *) ReadCmd.Lba, SwapBytes32 (Lba));
+ WriteUnaligned16 ((UINT16 *) ReadCmd.TransferLen, SwapBytes16 (Count));
+
+ Status = UsbBootExecCmdWithRetry (
+ UsbMass,
+ &ReadCmd,
+ (UINT8) sizeof (USB_BOOT_READ10_CMD),
+ EfiUsbDataIn,
+ Buffer,
+ ByteSize,
+ Timeout
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ DEBUG ((EFI_D_BLKIO, "UsbBootReadBlocks: LBA (0x%x), Blk (0x%x)\n", Lba, Count));
+ Lba += Count;
+ Buffer += Count * BlockSize;
+ TotalBlock -= Count;
+ }
+
+ return Status;
+}
+
+
+/**
+ Write some blocks to the device.
+
+ @param UsbMass The USB mass storage device to write to
+ @param Lba The start block number
+ @param TotalBlock Total block number to write
+ @param Buffer Pointer to the source buffer for the data.
+
+ @retval EFI_SUCCESS Data are written into the buffer
+ @retval Others Failed to write all the data
+
+**/
+EFI_STATUS
+UsbBootWriteBlocks (
+ IN USB_MASS_DEVICE *UsbMass,
+ IN UINT32 Lba,
+ IN UINTN TotalBlock,
+ IN UINT8 *Buffer
+ )
+{
+ USB_BOOT_WRITE10_CMD WriteCmd;
+ EFI_STATUS Status;
+ UINT16 Count;
+ UINT32 BlockSize;
+ UINT32 ByteSize;
+ UINT32 Timeout;
+
+ BlockSize = UsbMass->BlockIoMedia.BlockSize;
+ Status = EFI_SUCCESS;
+
+ while (TotalBlock > 0) {
+ //
+ // Split the total blocks into smaller pieces to ease the pressure
+ // on the device. We must split the total block because the WRITE10
+ // command only has 16 bit transfer length (in the unit of block).
+ //
+ Count = (UINT16)((TotalBlock < USB_BOOT_IO_BLOCKS) ? TotalBlock : USB_BOOT_IO_BLOCKS);
+ ByteSize = (UINT32)Count * BlockSize;
+
+ //
+ // USB command's upper limit timeout is 5s. [USB2.0-9.2.6.1]
+ //
+ Timeout = (UINT32) USB_BOOT_GENERAL_CMD_TIMEOUT;
+
+ //
+ // Fill in the write10 command block
+ //
+ ZeroMem (&WriteCmd, sizeof (USB_BOOT_WRITE10_CMD));
+
+ WriteCmd.OpCode = USB_BOOT_WRITE10_OPCODE;
+ WriteCmd.Lun = (UINT8) (USB_BOOT_LUN (UsbMass->Lun));
+ WriteUnaligned32 ((UINT32 *) WriteCmd.Lba, SwapBytes32 (Lba));
+ WriteUnaligned16 ((UINT16 *) WriteCmd.TransferLen, SwapBytes16 (Count));
+
+ Status = UsbBootExecCmdWithRetry (
+ UsbMass,
+ &WriteCmd,
+ (UINT8) sizeof (USB_BOOT_WRITE10_CMD),
+ EfiUsbDataOut,
+ Buffer,
+ ByteSize,
+ Timeout
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ DEBUG ((EFI_D_BLKIO, "UsbBootWriteBlocks: LBA (0x%x), Blk (0x%x)\n", Lba, Count));
+
+ Lba += Count;
+ Buffer += Count * BlockSize;
+ TotalBlock -= Count;
+ }
+
+ return Status;
+}
+
+/**
+ Read some blocks from the device by SCSI 16 byte cmd.
+
+ @param UsbMass The USB mass storage device to read from
+ @param Lba The start block number
+ @param TotalBlock Total block number to read
+ @param Buffer The buffer to read to
+
+ @retval EFI_SUCCESS Data are read into the buffer
+ @retval Others Failed to read all the data
+
+**/
+EFI_STATUS
+UsbBootReadBlocks16 (
+ IN USB_MASS_DEVICE *UsbMass,
+ IN UINT64 Lba,
+ IN UINTN TotalBlock,
+ OUT UINT8 *Buffer
+ )
+{
+ UINT8 ReadCmd[16];
+ EFI_STATUS Status;
+ UINT16 Count;
+ UINT32 BlockSize;
+ UINT32 ByteSize;
+ UINT32 Timeout;
+
+ BlockSize = UsbMass->BlockIoMedia.BlockSize;
+ Status = EFI_SUCCESS;
+
+ while (TotalBlock > 0) {
+ //
+ // Split the total blocks into smaller pieces.
+ //
+ Count = (UINT16)((TotalBlock < USB_BOOT_IO_BLOCKS) ? TotalBlock : USB_BOOT_IO_BLOCKS);
+ ByteSize = (UINT32)Count * BlockSize;
+
+ //
+ // USB command's upper limit timeout is 5s. [USB2.0-9.2.6.1]
+ //
+ Timeout = (UINT32) USB_BOOT_GENERAL_CMD_TIMEOUT;
+
+ //
+ // Fill in the command then execute
+ //
+ ZeroMem (ReadCmd, sizeof (ReadCmd));
+
+ ReadCmd[0] = EFI_SCSI_OP_READ16;
+ ReadCmd[1] = (UINT8) ((USB_BOOT_LUN (UsbMass->Lun) & 0xE0));
+ WriteUnaligned64 ((UINT64 *) &ReadCmd[2], SwapBytes64 (Lba));
+ WriteUnaligned32 ((UINT32 *) &ReadCmd[10], SwapBytes32 (Count));
+
+ Status = UsbBootExecCmdWithRetry (
+ UsbMass,
+ ReadCmd,
+ (UINT8) sizeof (ReadCmd),
+ EfiUsbDataIn,
+ Buffer,
+ ByteSize,
+ Timeout
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ DEBUG ((EFI_D_BLKIO, "UsbBootReadBlocks16: LBA (0x%lx), Blk (0x%x)\n", Lba, Count));
+ Lba += Count;
+ Buffer += Count * BlockSize;
+ TotalBlock -= Count;
+ }
+
+ return Status;
+}
+
+
+/**
+ Write some blocks to the device by SCSI 16 byte cmd.
+
+ @param UsbMass The USB mass storage device to write to
+ @param Lba The start block number
+ @param TotalBlock Total block number to write
+ @param Buffer Pointer to the source buffer for the data.
+
+ @retval EFI_SUCCESS Data are written into the buffer
+ @retval Others Failed to write all the data
+
+**/
+EFI_STATUS
+UsbBootWriteBlocks16 (
+ IN USB_MASS_DEVICE *UsbMass,
+ IN UINT64 Lba,
+ IN UINTN TotalBlock,
+ IN UINT8 *Buffer
+ )
+{
+ UINT8 WriteCmd[16];
+ EFI_STATUS Status;
+ UINT16 Count;
+ UINT32 BlockSize;
+ UINT32 ByteSize;
+ UINT32 Timeout;
+
+ BlockSize = UsbMass->BlockIoMedia.BlockSize;
+ Status = EFI_SUCCESS;
+
+ while (TotalBlock > 0) {
+ //
+ // Split the total blocks into smaller pieces.
+ //
+ Count = (UINT16)((TotalBlock < USB_BOOT_IO_BLOCKS) ? TotalBlock : USB_BOOT_IO_BLOCKS);
+ ByteSize = (UINT32)Count * BlockSize;
+
+ //
+ // USB command's upper limit timeout is 5s. [USB2.0-9.2.6.1]
+ //
+ Timeout = (UINT32) USB_BOOT_GENERAL_CMD_TIMEOUT;
+
+ //
+ // Fill in the write16 command block
+ //
+ ZeroMem (WriteCmd, sizeof (WriteCmd));
+
+ WriteCmd[0] = EFI_SCSI_OP_WRITE16;
+ WriteCmd[1] = (UINT8) ((USB_BOOT_LUN (UsbMass->Lun) & 0xE0));
+ WriteUnaligned64 ((UINT64 *) &WriteCmd[2], SwapBytes64 (Lba));
+ WriteUnaligned32 ((UINT32 *) &WriteCmd[10], SwapBytes32 (Count));
+
+ Status = UsbBootExecCmdWithRetry (
+ UsbMass,
+ WriteCmd,
+ (UINT8) sizeof (WriteCmd),
+ EfiUsbDataOut,
+ Buffer,
+ ByteSize,
+ Timeout
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ DEBUG ((EFI_D_BLKIO, "UsbBootWriteBlocks: LBA (0x%lx), Blk (0x%x)\n", Lba, Count));
+ Lba += Count;
+ Buffer += Count * BlockSize;
+ TotalBlock -= Count;
+ }
+
+ return Status;
+}
+
+/**
+ Use the USB clear feature control transfer to clear the endpoint stall condition.
+
+ @param UsbIo The USB I/O Protocol instance
+ @param EndpointAddr The endpoint to clear stall for
+
+ @retval EFI_SUCCESS The endpoint stall condition is cleared.
+ @retval Others Failed to clear the endpoint stall condition.
+
+**/
+EFI_STATUS
+UsbClearEndpointStall (
+ IN EFI_USB_IO_PROTOCOL *UsbIo,
+ IN UINT8 EndpointAddr
+ )
+{
+ EFI_USB_DEVICE_REQUEST Request;
+ EFI_STATUS Status;
+ UINT32 CmdResult;
+ UINT32 Timeout;
+
+ Request.RequestType = 0x02;
+ Request.Request = USB_REQ_CLEAR_FEATURE;
+ Request.Value = USB_FEATURE_ENDPOINT_HALT;
+ Request.Index = EndpointAddr;
+ Request.Length = 0;
+ Timeout = USB_BOOT_GENERAL_CMD_TIMEOUT / USB_MASS_1_MILLISECOND;
+
+ Status = UsbIo->UsbControlTransfer (
+ UsbIo,
+ &Request,
+ EfiUsbNoData,
+ Timeout,
+ NULL,
+ 0,
+ &CmdResult
+ );
+
+ return Status;
+}
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h
new file mode 100644
index 0000000000..c4082558fa
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h
@@ -0,0 +1,371 @@
+/** @file
+ Definition of the command set of USB Mass Storage Specification
+ for Bootability, Revision 1.0.
+
+Copyright (c) 2007 - 2012, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _EFI_USB_MASS_BOOT_H_
+#define _EFI_USB_MASS_BOOT_H_
+
+//
+// The opcodes of various USB boot commands:
+// INQUIRY/REQUEST_SENSE are "No Timeout Commands" as specified
+// by Multi-Media Commands (MMC) set.
+// Others are "Group 1 Timeout Commands". That is,
+// they should be retried if driver is ready.
+//
+#define USB_BOOT_INQUIRY_OPCODE 0x12
+#define USB_BOOT_REQUEST_SENSE_OPCODE 0x03
+#define USB_BOOT_MODE_SENSE10_OPCODE 0x5A
+#define USB_BOOT_READ_CAPACITY_OPCODE 0x25
+#define USB_BOOT_TEST_UNIT_READY_OPCODE 0x00
+#define USB_BOOT_READ10_OPCODE 0x28
+#define USB_BOOT_WRITE10_OPCODE 0x2A
+
+#define USB_SCSI_MODE_SENSE6_OPCODE 0x1A
+
+//
+// The Sense Key part of the sense data. Sense data has three levels:
+// Sense key, Additional Sense Code and Additional Sense Code Qualifier
+//
+#define USB_BOOT_SENSE_NO_SENSE 0x00 ///< No sense key
+#define USB_BOOT_SENSE_RECOVERED 0x01 ///< Last command succeed with recovery actions
+#define USB_BOOT_SENSE_NOT_READY 0x02 ///< Device not ready
+#define USB_BOOT_SNESE_MEDIUM_ERROR 0X03 ///< Failed probably because flaw in the media
+#define USB_BOOT_SENSE_HARDWARE_ERROR 0X04 ///< Non-recoverable hardware failure
+#define USB_BOOT_SENSE_ILLEGAL_REQUEST 0X05 ///< Illegal parameters in the request
+#define USB_BOOT_SENSE_UNIT_ATTENTION 0X06 ///< Removable medium may have been changed
+#define USB_BOOT_SENSE_DATA_PROTECT 0X07 ///< Write protected
+#define USB_BOOT_SENSE_BLANK_CHECK 0X08 ///< Blank/non-blank medium while reading/writing
+#define USB_BOOT_SENSE_VENDOR 0X09 ///< Vendor specific sense key
+#define USB_BOOT_SENSE_ABORTED 0X0B ///< Command aborted by the device
+#define USB_BOOT_SENSE_VOLUME_OVERFLOW 0x0D ///< Partition overflow
+#define USB_BOOT_SENSE_MISCOMPARE 0x0E ///< Source data mis-match while verfying.
+
+#define USB_BOOT_ASC_NOT_READY 0x04
+#define USB_BOOT_ASC_NO_MEDIA 0x3A
+#define USB_BOOT_ASC_MEDIA_CHANGE 0x28
+
+//
+// Supported PDT codes, or Peripheral Device Type
+//
+#define USB_PDT_DIRECT_ACCESS 0x00 ///< Direct access device
+#define USB_PDT_CDROM 0x05 ///< CDROM
+#define USB_PDT_OPTICAL 0x07 ///< Non-CD optical disks
+#define USB_PDT_SIMPLE_DIRECT 0x0E ///< Simplified direct access device
+
+//
+// Other parameters, Max carried size is 512B * 128 = 64KB
+//
+#define USB_BOOT_IO_BLOCKS 128
+
+//
+// Retry mass command times, set by experience
+//
+#define USB_BOOT_COMMAND_RETRY 5
+
+//
+// Wait for unit ready command, set by experience
+//
+#define USB_BOOT_RETRY_UNIT_READY_STALL (500 * USB_MASS_1_MILLISECOND)
+
+//
+// Mass command timeout, refers to specification[USB20-9.2.6.1]
+//
+// USB2.0 Spec define the up-limit timeout 5s for all command. USB floppy,
+// USB CD-Rom and iPod devices are much slower than USB key when reponse
+// most of commands, So we set 5s as timeout here.
+//
+#define USB_BOOT_GENERAL_CMD_TIMEOUT (5 * USB_MASS_1_SECOND)
+
+//
+// The required commands are INQUIRY, READ CAPACITY, TEST UNIT READY,
+// READ10, WRITE10, and REQUEST SENSE. The BLOCK_IO protocol uses LBA
+// so it isn't necessary to issue MODE SENSE / READ FORMAT CAPACITY
+// command to retrieve the disk gemotrics.
+//
+#pragma pack(1)
+typedef struct {
+ UINT8 OpCode;
+ UINT8 Lun; ///< Lun (high 3 bits)
+ UINT8 Reserved0[2];
+ UINT8 AllocLen;
+ UINT8 Reserved1;
+ UINT8 Pad[6];
+} USB_BOOT_INQUIRY_CMD;
+
+typedef struct {
+ UINT8 Pdt; ///< Peripheral Device Type (low 5 bits)
+ UINT8 Removable; ///< Removable Media (highest bit)
+ UINT8 Reserved0[2];
+ UINT8 AddLen; ///< Additional length
+ UINT8 Reserved1[3];
+ UINT8 VendorID[8];
+ UINT8 ProductID[16];
+ UINT8 ProductRevision[4];
+} USB_BOOT_INQUIRY_DATA;
+
+typedef struct {
+ UINT8 OpCode;
+ UINT8 Lun;
+ UINT8 Reserved0[8];
+ UINT8 Pad[2];
+} USB_BOOT_READ_CAPACITY_CMD;
+
+typedef struct {
+ UINT8 LastLba[4];
+ UINT8 BlockLen[4];
+} USB_BOOT_READ_CAPACITY_DATA;
+
+typedef struct {
+ UINT8 OpCode;
+ UINT8 Lun;
+ UINT8 Reserved[4];
+ UINT8 Pad[6];
+} USB_BOOT_TEST_UNIT_READY_CMD;
+
+typedef struct {
+ UINT8 OpCode;
+ UINT8 Lun;
+ UINT8 PageCode;
+ UINT8 Reserved0[4];
+ UINT8 ParaListLenMsb;
+ UINT8 ParaListLenLsb;
+ UINT8 Reserved1;
+ UINT8 Pad[2];
+} USB_BOOT_MODE_SENSE10_CMD;
+
+typedef struct {
+ UINT8 ModeDataLenMsb;
+ UINT8 ModeDataLenLsb;
+ UINT8 Reserved0[4];
+ UINT8 BlkDesLenMsb;
+ UINT8 BlkDesLenLsb;
+} USB_BOOT_MODE_SENSE10_PARA_HEADER;
+
+typedef struct {
+ UINT8 OpCode;
+ UINT8 Lun; ///< Lun (High 3 bits)
+ UINT8 Lba[4]; ///< Logical block address
+ UINT8 Reserved0;
+ UINT8 TransferLen[2]; ///< Transfer length
+ UINT8 Reserverd1;
+ UINT8 Pad[2];
+} USB_BOOT_READ10_CMD;
+
+typedef struct {
+ UINT8 OpCode;
+ UINT8 Lun;
+ UINT8 Lba[4];
+ UINT8 Reserved0;
+ UINT8 TransferLen[2];
+ UINT8 Reserverd1;
+ UINT8 Pad[2];
+} USB_BOOT_WRITE10_CMD;
+
+typedef struct {
+ UINT8 OpCode;
+ UINT8 Lun; ///< Lun (High 3 bits)
+ UINT8 Reserved0[2];
+ UINT8 AllocLen; ///< Allocation length
+ UINT8 Reserved1;
+ UINT8 Pad[6];
+} USB_BOOT_REQUEST_SENSE_CMD;
+
+typedef struct {
+ UINT8 ErrorCode;
+ UINT8 Reserved0;
+ UINT8 SenseKey; ///< Sense key (low 4 bits)
+ UINT8 Infor[4];
+ UINT8 AddLen; ///< Additional Sense length, 10
+ UINT8 Reserved1[4];
+ UINT8 Asc; ///< Additional Sense Code
+ UINT8 Ascq; ///< Additional Sense Code Qualifier
+ UINT8 Reserverd2[4];
+} USB_BOOT_REQUEST_SENSE_DATA;
+
+typedef struct {
+ UINT8 OpCode;
+ UINT8 Lun;
+ UINT8 PageCode;
+ UINT8 Reserved0;
+ UINT8 AllocateLen;
+ UINT8 Control;
+} USB_SCSI_MODE_SENSE6_CMD;
+
+typedef struct {
+ UINT8 ModeDataLen;
+ UINT8 MediumType;
+ UINT8 DevicePara;
+ UINT8 BlkDesLen;
+} USB_SCSI_MODE_SENSE6_PARA_HEADER;
+#pragma pack()
+
+//
+// Convert a LUN number to that in the command
+//
+#define USB_BOOT_LUN(Lun) ((Lun) << 5)
+
+//
+// Get the removable, PDT, and sense key bits from the command data
+//
+#define USB_BOOT_REMOVABLE(RmbByte) (((RmbByte) & BIT7) != 0)
+#define USB_BOOT_PDT(Pdt) ((Pdt) & 0x1f)
+#define USB_BOOT_SENSE_KEY(Key) ((Key) & 0x0f)
+
+/**
+ Get the parameters for the USB mass storage media.
+
+ This function get the parameters for the USB mass storage media,
+ It is used both to initialize the media during the Start() phase
+ of Driver Binding Protocol and to re-initialize it when the media is
+ changed. Althought the RemoveableMedia is unlikely to change,
+ it is also included here.
+
+ @param UsbMass The device to retrieve disk gemotric.
+
+ @retval EFI_SUCCESS The disk gemotric is successfully retrieved.
+ @retval Other Failed to get the parameters.
+
+**/
+EFI_STATUS
+UsbBootGetParams (
+ IN USB_MASS_DEVICE *UsbMass
+ );
+
+/**
+ Execute TEST UNIT READY command to check if the device is ready.
+
+ @param UsbMass The device to test
+
+ @retval EFI_SUCCESS The device is ready.
+ @retval Others Device not ready.
+
+**/
+EFI_STATUS
+UsbBootIsUnitReady (
+ IN USB_MASS_DEVICE *UsbMass
+ );
+
+/**
+ Detect whether the removable media is present and whether it has changed.
+
+ @param UsbMass The device to check.
+
+ @retval EFI_SUCCESS The media status is successfully checked.
+ @retval Other Failed to detect media.
+
+**/
+EFI_STATUS
+UsbBootDetectMedia (
+ IN USB_MASS_DEVICE *UsbMass
+ );
+
+/**
+ Read some blocks from the device.
+
+ @param UsbMass The USB mass storage device to read from
+ @param Lba The start block number
+ @param TotalBlock Total block number to read
+ @param Buffer The buffer to read to
+
+ @retval EFI_SUCCESS Data are read into the buffer
+ @retval Others Failed to read all the data
+
+**/
+EFI_STATUS
+UsbBootReadBlocks (
+ IN USB_MASS_DEVICE *UsbMass,
+ IN UINT32 Lba,
+ IN UINTN TotalBlock,
+ OUT UINT8 *Buffer
+ );
+
+/**
+ Write some blocks to the device.
+
+ @param UsbMass The USB mass storage device to write to
+ @param Lba The start block number
+ @param TotalBlock Total block number to write
+ @param Buffer Pointer to the source buffer for the data.
+
+ @retval EFI_SUCCESS Data are written into the buffer
+ @retval Others Failed to write all the data
+
+**/
+EFI_STATUS
+UsbBootWriteBlocks (
+ IN USB_MASS_DEVICE *UsbMass,
+ IN UINT32 Lba,
+ IN UINTN TotalBlock,
+ IN UINT8 *Buffer
+ );
+
+/**
+ Read some blocks from the device by SCSI 16 byte cmd.
+
+ @param UsbMass The USB mass storage device to read from
+ @param Lba The start block number
+ @param TotalBlock Total block number to read
+ @param Buffer The buffer to read to
+
+ @retval EFI_SUCCESS Data are read into the buffer
+ @retval Others Failed to read all the data
+
+**/
+EFI_STATUS
+UsbBootReadBlocks16 (
+ IN USB_MASS_DEVICE *UsbMass,
+ IN UINT64 Lba,
+ IN UINTN TotalBlock,
+ OUT UINT8 *Buffer
+ );
+
+/**
+ Write some blocks to the device by SCSI 16 byte cmd.
+
+ @param UsbMass The USB mass storage device to write to
+ @param Lba The start block number
+ @param TotalBlock Total block number to write
+ @param Buffer Pointer to the source buffer for the data.
+
+ @retval EFI_SUCCESS Data are written into the buffer
+ @retval Others Failed to write all the data
+
+**/
+EFI_STATUS
+UsbBootWriteBlocks16 (
+ IN USB_MASS_DEVICE *UsbMass,
+ IN UINT64 Lba,
+ IN UINTN TotalBlock,
+ IN UINT8 *Buffer
+ );
+
+
+/**
+ Use the USB clear feature control transfer to clear the endpoint stall condition.
+
+ @param UsbIo The USB I/O Protocol instance
+ @param EndpointAddr The endpoint to clear stall for
+
+ @retval EFI_SUCCESS The endpoint stall condition is cleared.
+ @retval Others Failed to clear the endpoint stall condition.
+
+**/
+EFI_STATUS
+UsbClearEndpointStall (
+ IN EFI_USB_IO_PROTOCOL *UsbIo,
+ IN UINT8 EndpointAddr
+ );
+
+#endif
+
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBot.c b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBot.c
new file mode 100644
index 0000000000..dd83540285
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBot.c
@@ -0,0 +1,599 @@
+/** @file
+ Implementation of the USB mass storage Bulk-Only Transport protocol,
+ according to USB Mass Storage Class Bulk-Only Transport, Revision 1.0.
+
+Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "UsbMass.h"
+
+//
+// Definition of USB BOT Transport Protocol
+//
+USB_MASS_TRANSPORT mUsbBotTransport = {
+ USB_MASS_STORE_BOT,
+ UsbBotInit,
+ UsbBotExecCommand,
+ UsbBotResetDevice,
+ UsbBotGetMaxLun,
+ UsbBotCleanUp
+};
+
+/**
+ Initializes USB BOT protocol.
+
+ This function initializes the USB mass storage class BOT protocol.
+ It will save its context which is a USB_BOT_PROTOCOL structure
+ in the Context if Context isn't NULL.
+
+ @param UsbIo The USB I/O Protocol instance
+ @param Context The buffer to save the context to
+
+ @retval EFI_SUCCESS The device is successfully initialized.
+ @retval EFI_UNSUPPORTED The transport protocol doesn't support the device.
+ @retval Other The USB BOT initialization fails.
+
+**/
+EFI_STATUS
+UsbBotInit (
+ IN EFI_USB_IO_PROTOCOL *UsbIo,
+ OUT VOID **Context OPTIONAL
+ )
+{
+ USB_BOT_PROTOCOL *UsbBot;
+ EFI_USB_INTERFACE_DESCRIPTOR *Interface;
+ EFI_USB_ENDPOINT_DESCRIPTOR EndPoint;
+ EFI_STATUS Status;
+ UINT8 Index;
+
+ //
+ // Allocate the BOT context for USB_BOT_PROTOCOL and two endpoint descriptors.
+ //
+ UsbBot = AllocateZeroPool (sizeof (USB_BOT_PROTOCOL) + 2 * sizeof (EFI_USB_ENDPOINT_DESCRIPTOR));
+ ASSERT (UsbBot != NULL);
+
+ UsbBot->UsbIo = UsbIo;
+
+ //
+ // Get the interface descriptor and validate that it
+ // is a USB Mass Storage BOT interface.
+ //
+ Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &UsbBot->Interface);
+
+ if (EFI_ERROR (Status)) {
+ goto ON_ERROR;
+ }
+
+ Interface = &UsbBot->Interface;
+
+ if (Interface->InterfaceProtocol != USB_MASS_STORE_BOT) {
+ Status = EFI_UNSUPPORTED;
+ goto ON_ERROR;
+ }
+
+ //
+ // Locate and save the first bulk-in and bulk-out endpoint
+ //
+ for (Index = 0; Index < Interface->NumEndpoints; Index++) {
+ Status = UsbIo->UsbGetEndpointDescriptor (UsbIo, Index, &EndPoint);
+
+ if (EFI_ERROR (Status) || !USB_IS_BULK_ENDPOINT (EndPoint.Attributes)) {
+ continue;
+ }
+
+ if (USB_IS_IN_ENDPOINT (EndPoint.EndpointAddress) &&
+ (UsbBot->BulkInEndpoint == NULL)) {
+
+ UsbBot->BulkInEndpoint = (EFI_USB_ENDPOINT_DESCRIPTOR *) (UsbBot + 1);
+ CopyMem(UsbBot->BulkInEndpoint, &EndPoint, sizeof (EndPoint));
+ }
+
+ if (USB_IS_OUT_ENDPOINT (EndPoint.EndpointAddress) &&
+ (UsbBot->BulkOutEndpoint == NULL)) {
+
+ UsbBot->BulkOutEndpoint = (EFI_USB_ENDPOINT_DESCRIPTOR *) (UsbBot + 1) + 1;
+ CopyMem (UsbBot->BulkOutEndpoint, &EndPoint, sizeof(EndPoint));
+ }
+ }
+
+ //
+ // If bulk-in or bulk-out endpoint is not found, report error.
+ //
+ if ((UsbBot->BulkInEndpoint == NULL) || (UsbBot->BulkOutEndpoint == NULL)) {
+ Status = EFI_UNSUPPORTED;
+ goto ON_ERROR;
+ }
+
+ //
+ // The USB BOT protocol uses CBWTag to match the CBW and CSW.
+ //
+ UsbBot->CbwTag = 0x01;
+
+ if (Context != NULL) {
+ *Context = UsbBot;
+ } else {
+ FreePool (UsbBot);
+ }
+
+ return EFI_SUCCESS;
+
+ON_ERROR:
+ FreePool (UsbBot);
+ return Status;
+}
+
+/**
+ Send the command to the device using Bulk-Out endpoint.
+
+ This function sends the command to the device using Bulk-Out endpoint.
+ BOT transfer is composed of three phases: Command, Data, and Status.
+ This is the Command phase.
+
+ @param UsbBot The USB BOT device
+ @param Cmd The command to transfer to device
+ @param CmdLen The length of the command
+ @param DataDir The direction of the data
+ @param TransLen The expected length of the data
+ @param Lun The number of logic unit
+
+ @retval EFI_SUCCESS The command is sent to the device.
+ @retval EFI_NOT_READY The device return NAK to the transfer
+ @retval Others Failed to send the command to device
+
+**/
+EFI_STATUS
+UsbBotSendCommand (
+ IN USB_BOT_PROTOCOL *UsbBot,
+ IN UINT8 *Cmd,
+ IN UINT8 CmdLen,
+ IN EFI_USB_DATA_DIRECTION DataDir,
+ IN UINT32 TransLen,
+ IN UINT8 Lun
+ )
+{
+ USB_BOT_CBW Cbw;
+ EFI_STATUS Status;
+ UINT32 Result;
+ UINTN DataLen;
+ UINTN Timeout;
+
+ ASSERT ((CmdLen > 0) && (CmdLen <= USB_BOT_MAX_CMDLEN));
+
+ //
+ // Fill in the Command Block Wrapper.
+ //
+ Cbw.Signature = USB_BOT_CBW_SIGNATURE;
+ Cbw.Tag = UsbBot->CbwTag;
+ Cbw.DataLen = TransLen;
+ Cbw.Flag = (UINT8) ((DataDir == EfiUsbDataIn) ? BIT7 : 0);
+ Cbw.Lun = Lun;
+ Cbw.CmdLen = CmdLen;
+
+ ZeroMem (Cbw.CmdBlock, USB_BOT_MAX_CMDLEN);
+ CopyMem (Cbw.CmdBlock, Cmd, CmdLen);
+
+ Result = 0;
+ DataLen = sizeof (USB_BOT_CBW);
+ Timeout = USB_BOT_SEND_CBW_TIMEOUT / USB_MASS_1_MILLISECOND;
+
+ //
+ // Use USB I/O Protocol to send the Command Block Wrapper to the device.
+ //
+ Status = UsbBot->UsbIo->UsbBulkTransfer (
+ UsbBot->UsbIo,
+ UsbBot->BulkOutEndpoint->EndpointAddress,
+ &Cbw,
+ &DataLen,
+ Timeout,
+ &Result
+ );
+ if (EFI_ERROR (Status)) {
+ if (USB_IS_ERROR (Result, EFI_USB_ERR_STALL) && DataDir == EfiUsbDataOut) {
+ //
+ // Respond to Bulk-Out endpoint stall with a Reset Recovery,
+ // according to section 5.3.1 of USB Mass Storage Class Bulk-Only Transport Spec, v1.0.
+ //
+ UsbBotResetDevice (UsbBot, FALSE);
+ } else if (USB_IS_ERROR (Result, EFI_USB_ERR_NAK)) {
+ Status = EFI_NOT_READY;
+ }
+ }
+
+ return Status;
+}
+
+
+/**
+ Transfer the data between the device and host.
+
+ This function transfers the data between the device and host.
+ BOT transfer is composed of three phases: Command, Data, and Status.
+ This is the Data phase.
+
+ @param UsbBot The USB BOT device
+ @param DataDir The direction of the data
+ @param Data The buffer to hold data
+ @param TransLen The expected length of the data
+ @param Timeout The time to wait the command to complete
+
+ @retval EFI_SUCCESS The data is transferred
+ @retval EFI_SUCCESS No data to transfer
+ @retval EFI_NOT_READY The device return NAK to the transfer
+ @retval Others Failed to transfer data
+
+**/
+EFI_STATUS
+UsbBotDataTransfer (
+ IN USB_BOT_PROTOCOL *UsbBot,
+ IN EFI_USB_DATA_DIRECTION DataDir,
+ IN OUT UINT8 *Data,
+ IN OUT UINTN *TransLen,
+ IN UINT32 Timeout
+ )
+{
+ EFI_USB_ENDPOINT_DESCRIPTOR *Endpoint;
+ EFI_STATUS Status;
+ UINT32 Result;
+
+ //
+ // If no data to transfer, just return EFI_SUCCESS.
+ //
+ if ((DataDir == EfiUsbNoData) || (*TransLen == 0)) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Select the endpoint then issue the transfer
+ //
+ if (DataDir == EfiUsbDataIn) {
+ Endpoint = UsbBot->BulkInEndpoint;
+ } else {
+ Endpoint = UsbBot->BulkOutEndpoint;
+ }
+
+ Result = 0;
+ Timeout = Timeout / USB_MASS_1_MILLISECOND;
+
+ Status = UsbBot->UsbIo->UsbBulkTransfer (
+ UsbBot->UsbIo,
+ Endpoint->EndpointAddress,
+ Data,
+ TransLen,
+ Timeout,
+ &Result
+ );
+ if (EFI_ERROR (Status)) {
+ if (USB_IS_ERROR (Result, EFI_USB_ERR_STALL)) {
+ DEBUG ((EFI_D_INFO, "UsbBotDataTransfer: (%r)\n", Status));
+ DEBUG ((EFI_D_INFO, "UsbBotDataTransfer: DataIn Stall\n"));
+ UsbClearEndpointStall (UsbBot->UsbIo, Endpoint->EndpointAddress);
+ } else if (USB_IS_ERROR (Result, EFI_USB_ERR_NAK)) {
+ Status = EFI_NOT_READY;
+ } else {
+ DEBUG ((EFI_D_ERROR, "UsbBotDataTransfer: (%r)\n", Status));
+ }
+ if(Status == EFI_TIMEOUT){
+ UsbBotResetDevice(UsbBot, FALSE);
+ }
+ }
+
+ return Status;
+}
+
+
+/**
+ Get the command execution status from device.
+
+ This function gets the command execution status from device.
+ BOT transfer is composed of three phases: Command, Data, and Status.
+ This is the Status phase.
+
+ This function returns the transfer status of the BOT's CSW status,
+ and returns the high level command execution result in Result. So
+ even if EFI_SUCCESS is returned, the command may still have failed.
+
+ @param UsbBot The USB BOT device.
+ @param TransLen The expected length of the data.
+ @param CmdStatus The result of the command execution.
+
+ @retval EFI_SUCCESS Command execute result is retrieved and in the Result.
+ @retval Other Error occurred when trying to get status.
+
+**/
+EFI_STATUS
+UsbBotGetStatus (
+ IN USB_BOT_PROTOCOL *UsbBot,
+ IN UINT32 TransLen,
+ OUT UINT8 *CmdStatus
+ )
+{
+ USB_BOT_CSW Csw;
+ UINTN Len;
+ UINT8 Endpoint;
+ EFI_STATUS Status;
+ UINT32 Result;
+ EFI_USB_IO_PROTOCOL *UsbIo;
+ UINT32 Index;
+ UINTN Timeout;
+
+ *CmdStatus = USB_BOT_COMMAND_ERROR;
+ Status = EFI_DEVICE_ERROR;
+ Endpoint = UsbBot->BulkInEndpoint->EndpointAddress;
+ UsbIo = UsbBot->UsbIo;
+ Timeout = USB_BOT_RECV_CSW_TIMEOUT / USB_MASS_1_MILLISECOND;
+
+ for (Index = 0; Index < USB_BOT_RECV_CSW_RETRY; Index++) {
+ //
+ // Attemp to the read Command Status Wrapper from bulk in endpoint
+ //
+ ZeroMem (&Csw, sizeof (USB_BOT_CSW));
+ Result = 0;
+ Len = sizeof (USB_BOT_CSW);
+ Status = UsbIo->UsbBulkTransfer (
+ UsbIo,
+ Endpoint,
+ &Csw,
+ &Len,
+ Timeout,
+ &Result
+ );
+ if (EFI_ERROR(Status)) {
+ if (USB_IS_ERROR (Result, EFI_USB_ERR_STALL)) {
+ UsbClearEndpointStall (UsbIo, Endpoint);
+ }
+ continue;
+ }
+
+ if (Csw.Signature != USB_BOT_CSW_SIGNATURE) {
+ //
+ // CSW is invalid, so perform reset recovery
+ //
+ Status = UsbBotResetDevice (UsbBot, FALSE);
+ } else if (Csw.CmdStatus == USB_BOT_COMMAND_ERROR) {
+ //
+ // Respond phase error also needs reset recovery
+ //
+ Status = UsbBotResetDevice (UsbBot, FALSE);
+ } else {
+ *CmdStatus = Csw.CmdStatus;
+ break;
+ }
+ }
+ //
+ //The tag is increased even if there is an error.
+ //
+ UsbBot->CbwTag++;
+
+ return Status;
+}
+
+
+/**
+ Call the USB Mass Storage Class BOT protocol to issue
+ the command/data/status circle to execute the commands.
+
+ @param Context The context of the BOT protocol, that is,
+ USB_BOT_PROTOCOL
+ @param Cmd The high level command
+ @param CmdLen The command length
+ @param DataDir The direction of the data transfer
+ @param Data The buffer to hold data
+ @param DataLen The length of the data
+ @param Lun The number of logic unit
+ @param Timeout The time to wait command
+ @param CmdStatus The result of high level command execution
+
+ @retval EFI_SUCCESS The command is executed successfully.
+ @retval Other Failed to excute command
+
+**/
+EFI_STATUS
+UsbBotExecCommand (
+ IN VOID *Context,
+ IN VOID *Cmd,
+ IN UINT8 CmdLen,
+ IN EFI_USB_DATA_DIRECTION DataDir,
+ IN VOID *Data,
+ IN UINT32 DataLen,
+ IN UINT8 Lun,
+ IN UINT32 Timeout,
+ OUT UINT32 *CmdStatus
+ )
+{
+ USB_BOT_PROTOCOL *UsbBot;
+ EFI_STATUS Status;
+ UINTN TransLen;
+ UINT8 Result;
+
+ *CmdStatus = USB_MASS_CMD_FAIL;
+ UsbBot = (USB_BOT_PROTOCOL *) Context;
+
+ //
+ // Send the command to the device. Return immediately if device
+ // rejects the command.
+ //
+ Status = UsbBotSendCommand (UsbBot, Cmd, CmdLen, DataDir, DataLen, Lun);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "UsbBotExecCommand: UsbBotSendCommand (%r)\n", Status));
+ return Status;
+ }
+
+ //
+ // Transfer the data. Don't return immediately even data transfer
+ // failed. The host should attempt to receive the CSW no matter
+ // whether it succeeds or fails.
+ //
+ TransLen = (UINTN) DataLen;
+ UsbBotDataTransfer (UsbBot, DataDir, Data, &TransLen, Timeout);
+
+ //
+ // Get the status, if that succeeds, interpret the result
+ //
+ Status = UsbBotGetStatus (UsbBot, DataLen, &Result);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "UsbBotExecCommand: UsbBotGetStatus (%r)\n", Status));
+ return Status;
+ }
+
+ if (Result == 0) {
+ *CmdStatus = USB_MASS_CMD_SUCCESS;
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ Reset the USB mass storage device by BOT protocol.
+
+ @param Context The context of the BOT protocol, that is,
+ USB_BOT_PROTOCOL.
+ @param ExtendedVerification If FALSE, just issue Bulk-Only Mass Storage Reset request.
+ If TRUE, additionally reset parent hub port.
+
+ @retval EFI_SUCCESS The device is reset.
+ @retval Others Failed to reset the device..
+
+**/
+EFI_STATUS
+UsbBotResetDevice (
+ IN VOID *Context,
+ IN BOOLEAN ExtendedVerification
+ )
+{
+ USB_BOT_PROTOCOL *UsbBot;
+ EFI_USB_DEVICE_REQUEST Request;
+ EFI_STATUS Status;
+ UINT32 Result;
+ UINT32 Timeout;
+
+ UsbBot = (USB_BOT_PROTOCOL *) Context;
+
+ if (ExtendedVerification) {
+ //
+ // If we need to do strictly reset, reset its parent hub port
+ //
+ Status = UsbBot->UsbIo->UsbPortReset (UsbBot->UsbIo);
+ if (EFI_ERROR (Status)) {
+ return EFI_DEVICE_ERROR;
+ }
+ }
+
+ //
+ // Issue a class specific Bulk-Only Mass Storage Reset request,
+ // according to section 3.1 of USB Mass Storage Class Bulk-Only Transport Spec, v1.0.
+ //
+ Request.RequestType = 0x21;
+ Request.Request = USB_BOT_RESET_REQUEST;
+ Request.Value = 0;
+ Request.Index = UsbBot->Interface.InterfaceNumber;
+ Request.Length = 0;
+ Timeout = USB_BOT_RESET_DEVICE_TIMEOUT / USB_MASS_1_MILLISECOND;
+
+ Status = UsbBot->UsbIo->UsbControlTransfer (
+ UsbBot->UsbIo,
+ &Request,
+ EfiUsbNoData,
+ Timeout,
+ NULL,
+ 0,
+ &Result
+ );
+
+ if (EFI_ERROR (Status)) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ //
+ // The device shall NAK the host's request until the reset is
+ // complete. We can use this to sync the device and host. For
+ // now just stall 100ms to wait for the device.
+ //
+ gBS->Stall (USB_BOT_RESET_DEVICE_STALL);
+
+ //
+ // Clear the Bulk-In and Bulk-Out stall condition.
+ //
+ UsbClearEndpointStall (UsbBot->UsbIo, UsbBot->BulkInEndpoint->EndpointAddress);
+ UsbClearEndpointStall (UsbBot->UsbIo, UsbBot->BulkOutEndpoint->EndpointAddress);
+
+ return Status;
+}
+
+
+/**
+ Get the max LUN (Logical Unit Number) of USB mass storage device.
+
+ @param Context The context of the BOT protocol, that is, USB_BOT_PROTOCOL
+ @param MaxLun Return pointer to the max number of LUN. (e.g. MaxLun=1 means LUN0 and
+ LUN1 in all.)
+
+ @retval EFI_SUCCESS Max LUN is got successfully.
+ @retval Others Fail to execute this request.
+
+**/
+EFI_STATUS
+UsbBotGetMaxLun (
+ IN VOID *Context,
+ OUT UINT8 *MaxLun
+ )
+{
+ USB_BOT_PROTOCOL *UsbBot;
+ EFI_USB_DEVICE_REQUEST Request;
+ EFI_STATUS Status;
+ UINT32 Result;
+ UINT32 Timeout;
+
+ ASSERT (Context);
+
+ UsbBot = (USB_BOT_PROTOCOL *) Context;
+
+ //
+ // Issue a class specific Bulk-Only Mass Storage get max lun reqest.
+ // according to section 3.2 of USB Mass Storage Class Bulk-Only Transport Spec, v1.0.
+ //
+ Request.RequestType = 0xA1;
+ Request.Request = USB_BOT_GETLUN_REQUEST;
+ Request.Value = 0;
+ Request.Index = UsbBot->Interface.InterfaceNumber;
+ Request.Length = 1;
+ Timeout = USB_BOT_RESET_DEVICE_TIMEOUT / USB_MASS_1_MILLISECOND;
+
+ Status = UsbBot->UsbIo->UsbControlTransfer (
+ UsbBot->UsbIo,
+ &Request,
+ EfiUsbDataIn,
+ Timeout,
+ (VOID *) MaxLun,
+ 1,
+ &Result
+ );
+
+ return Status;
+}
+
+/**
+ Clean up the resource used by this BOT protocol.
+
+ @param Context The context of the BOT protocol, that is, USB_BOT_PROTOCOL.
+
+ @retval EFI_SUCCESS The resource is cleaned up.
+
+**/
+EFI_STATUS
+UsbBotCleanUp (
+ IN VOID *Context
+ )
+{
+ FreePool (Context);
+ return EFI_SUCCESS;
+}
+
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBot.h b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBot.h
new file mode 100644
index 0000000000..bdbddf559b
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBot.h
@@ -0,0 +1,193 @@
+/** @file
+ Definition for the USB mass storage Bulk-Only Transport protocol,
+ based on the "Universal Serial Bus Mass Storage Class Bulk-Only
+ Transport" Revision 1.0, September 31, 1999.
+
+Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _EFI_USBMASS_BOT_H_
+#define _EFI_USBMASS_BOT_H_
+
+extern USB_MASS_TRANSPORT mUsbBotTransport;
+
+//
+// Usb Bulk-Only class specfic request
+//
+#define USB_BOT_RESET_REQUEST 0xFF ///< Bulk-Only Mass Storage Reset
+#define USB_BOT_GETLUN_REQUEST 0xFE ///< Get Max Lun
+#define USB_BOT_CBW_SIGNATURE 0x43425355 ///< dCBWSignature, tag the packet as CBW
+#define USB_BOT_CSW_SIGNATURE 0x53425355 ///< dCSWSignature, tag the packet as CSW
+#define USB_BOT_MAX_LUN 0x0F ///< Lun number is from 0 to 15
+#define USB_BOT_MAX_CMDLEN 16 ///< Maxium number of command from command set
+
+//
+// Usb BOT command block status values
+//
+#define USB_BOT_COMMAND_OK 0x00 ///< Command passed, good status
+#define USB_BOT_COMMAND_FAILED 0x01 ///< Command failed
+#define USB_BOT_COMMAND_ERROR 0x02 ///< Phase error, need to reset the device
+
+//
+// Usb Bot retry to get CSW, refers to specification[BOT10-5.3, it says 2 times]
+//
+#define USB_BOT_RECV_CSW_RETRY 3
+
+//
+// Usb Bot wait device reset complete, set by experience
+//
+#define USB_BOT_RESET_DEVICE_STALL (100 * USB_MASS_1_MILLISECOND)
+
+//
+// Usb Bot transport timeout, set by experience
+//
+#define USB_BOT_SEND_CBW_TIMEOUT (3 * USB_MASS_1_SECOND)
+#define USB_BOT_RECV_CSW_TIMEOUT (3 * USB_MASS_1_SECOND)
+#define USB_BOT_RESET_DEVICE_TIMEOUT (3 * USB_MASS_1_SECOND)
+
+#pragma pack(1)
+///
+/// The CBW (Command Block Wrapper) structures used by the USB BOT protocol.
+///
+typedef struct {
+ UINT32 Signature;
+ UINT32 Tag;
+ UINT32 DataLen; ///< Length of data between CBW and CSW
+ UINT8 Flag; ///< Bit 7, 0 ~ Data-Out, 1 ~ Data-In
+ UINT8 Lun; ///< Lun number. Bits 0~3 are used
+ UINT8 CmdLen; ///< Length of the command. Bits 0~4 are used
+ UINT8 CmdBlock[USB_BOT_MAX_CMDLEN];
+} USB_BOT_CBW;
+
+///
+/// The and CSW (Command Status Wrapper) structures used by the USB BOT protocol.
+///
+typedef struct {
+ UINT32 Signature;
+ UINT32 Tag;
+ UINT32 DataResidue;
+ UINT8 CmdStatus;
+} USB_BOT_CSW;
+#pragma pack()
+
+typedef struct {
+ //
+ // Put Interface at the first field to make it easy to distinguish BOT/CBI Protocol instance
+ //
+ EFI_USB_INTERFACE_DESCRIPTOR Interface;
+ EFI_USB_ENDPOINT_DESCRIPTOR *BulkInEndpoint;
+ EFI_USB_ENDPOINT_DESCRIPTOR *BulkOutEndpoint;
+ UINT32 CbwTag;
+ EFI_USB_IO_PROTOCOL *UsbIo;
+} USB_BOT_PROTOCOL;
+
+/**
+ Initializes USB BOT protocol.
+
+ This function initializes the USB mass storage class BOT protocol.
+ It will save its context which is a USB_BOT_PROTOCOL structure
+ in the Context if Context isn't NULL.
+
+ @param UsbIo The USB I/O Protocol instance
+ @param Context The buffer to save the context to
+
+ @retval EFI_SUCCESS The device is successfully initialized.
+ @retval EFI_UNSUPPORTED The transport protocol doesn't support the device.
+ @retval Other The USB BOT initialization fails.
+
+**/
+EFI_STATUS
+UsbBotInit (
+ IN EFI_USB_IO_PROTOCOL *UsbIo,
+ OUT VOID **Context OPTIONAL
+ );
+
+/**
+ Call the USB Mass Storage Class BOT protocol to issue
+ the command/data/status circle to execute the commands.
+
+ @param Context The context of the BOT protocol, that is,
+ USB_BOT_PROTOCOL
+ @param Cmd The high level command
+ @param CmdLen The command length
+ @param DataDir The direction of the data transfer
+ @param Data The buffer to hold data
+ @param DataLen The length of the data
+ @param Lun The number of logic unit
+ @param Timeout The time to wait command
+ @param CmdStatus The result of high level command execution
+
+ @retval EFI_SUCCESS The command is executed successfully.
+ @retval Other Failed to excute command
+
+**/
+EFI_STATUS
+UsbBotExecCommand (
+ IN VOID *Context,
+ IN VOID *Cmd,
+ IN UINT8 CmdLen,
+ IN EFI_USB_DATA_DIRECTION DataDir,
+ IN VOID *Data,
+ IN UINT32 DataLen,
+ IN UINT8 Lun,
+ IN UINT32 Timeout,
+ OUT UINT32 *CmdStatus
+ );
+
+/**
+ Reset the USB mass storage device by BOT protocol.
+
+ @param Context The context of the BOT protocol, that is,
+ USB_BOT_PROTOCOL.
+ @param ExtendedVerification If FALSE, just issue Bulk-Only Mass Storage Reset request.
+ If TRUE, additionally reset parent hub port.
+
+ @retval EFI_SUCCESS The device is reset.
+ @retval Others Failed to reset the device..
+
+**/
+EFI_STATUS
+UsbBotResetDevice (
+ IN VOID *Context,
+ IN BOOLEAN ExtendedVerification
+ );
+
+/**
+ Get the max LUN (Logical Unit Number) of USB mass storage device.
+
+ @param Context The context of the BOT protocol, that is, USB_BOT_PROTOCOL
+ @param MaxLun Return pointer to the max number of LUN. (e.g. MaxLun=1 means LUN0 and
+ LUN1 in all.)
+
+ @retval EFI_SUCCESS Max LUN is got successfully.
+ @retval Others Fail to execute this request.
+
+**/
+EFI_STATUS
+UsbBotGetMaxLun (
+ IN VOID *Context,
+ OUT UINT8 *MaxLun
+ );
+
+/**
+ Clean up the resource used by this BOT protocol.
+
+ @param Context The context of the BOT protocol, that is, USB_BOT_PROTOCOL.
+
+ @retval EFI_SUCCESS The resource is cleaned up.
+
+**/
+EFI_STATUS
+UsbBotCleanUp (
+ IN VOID *Context
+ );
+
+#endif
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassCbi.c b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassCbi.c
new file mode 100644
index 0000000000..3f6201d053
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassCbi.c
@@ -0,0 +1,612 @@
+/** @file
+ Implementation of the USB mass storage Control/Bulk/Interrupt transport,
+ according to USB Mass Storage Class Control/Bulk/Interrupt (CBI) Transport, Revision 1.1.
+ Notice: it is being obsoleted by the standard body in favor of the BOT
+ (Bulk-Only Transport).
+
+Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "UsbMass.h"
+
+//
+// Definition of USB CBI0 Transport Protocol
+//
+USB_MASS_TRANSPORT mUsbCbi0Transport = {
+ USB_MASS_STORE_CBI0,
+ UsbCbiInit,
+ UsbCbiExecCommand,
+ UsbCbiResetDevice,
+ NULL,
+ UsbCbiCleanUp
+};
+
+//
+// Definition of USB CBI1 Transport Protocol
+//
+USB_MASS_TRANSPORT mUsbCbi1Transport = {
+ USB_MASS_STORE_CBI1,
+ UsbCbiInit,
+ UsbCbiExecCommand,
+ UsbCbiResetDevice,
+ NULL,
+ UsbCbiCleanUp
+};
+
+/**
+ Initializes USB CBI protocol.
+
+ This function initializes the USB mass storage class CBI protocol.
+ It will save its context which is a USB_CBI_PROTOCOL structure
+ in the Context if Context isn't NULL.
+
+ @param UsbIo The USB I/O Protocol instance
+ @param Context The buffer to save the context to
+
+ @retval EFI_SUCCESS The device is successfully initialized.
+ @retval EFI_UNSUPPORTED The transport protocol doesn't support the device.
+ @retval Other The USB CBI initialization fails.
+
+**/
+EFI_STATUS
+UsbCbiInit (
+ IN EFI_USB_IO_PROTOCOL *UsbIo,
+ OUT VOID **Context OPTIONAL
+ )
+{
+ USB_CBI_PROTOCOL *UsbCbi;
+ EFI_USB_INTERFACE_DESCRIPTOR *Interface;
+ EFI_USB_ENDPOINT_DESCRIPTOR EndPoint;
+ EFI_STATUS Status;
+ UINT8 Index;
+
+ //
+ // Allocate the CBI context for USB_CBI_PROTOCOL and 3 endpoint descriptors.
+ //
+ UsbCbi = AllocateZeroPool (
+ sizeof (USB_CBI_PROTOCOL) + 3 * sizeof (EFI_USB_ENDPOINT_DESCRIPTOR)
+ );
+ ASSERT (UsbCbi != NULL);
+
+ UsbCbi->UsbIo = UsbIo;
+
+ //
+ // Get the interface descriptor and validate that it
+ // is a USB Mass Storage CBI interface.
+ //
+ Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &UsbCbi->Interface);
+ if (EFI_ERROR (Status)) {
+ goto ON_ERROR;
+ }
+
+ Interface = &UsbCbi->Interface;
+ if ((Interface->InterfaceProtocol != USB_MASS_STORE_CBI0)
+ && (Interface->InterfaceProtocol != USB_MASS_STORE_CBI1)) {
+ Status = EFI_UNSUPPORTED;
+ goto ON_ERROR;
+ }
+
+ //
+ // Locate and save the bulk-in, bulk-out, and interrupt endpoint
+ //
+ for (Index = 0; Index < Interface->NumEndpoints; Index++) {
+ Status = UsbIo->UsbGetEndpointDescriptor (UsbIo, Index, &EndPoint);
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+
+ if (USB_IS_BULK_ENDPOINT (EndPoint.Attributes)) {
+ //
+ // Use the first Bulk-In and Bulk-Out endpoints
+ //
+ if (USB_IS_IN_ENDPOINT (EndPoint.EndpointAddress) &&
+ (UsbCbi->BulkInEndpoint == NULL)) {
+
+ UsbCbi->BulkInEndpoint = (EFI_USB_ENDPOINT_DESCRIPTOR *) (UsbCbi + 1);
+ CopyMem(UsbCbi->BulkInEndpoint, &EndPoint, sizeof (EndPoint));;
+ }
+
+ if (USB_IS_OUT_ENDPOINT (EndPoint.EndpointAddress) &&
+ (UsbCbi->BulkOutEndpoint == NULL)) {
+
+ UsbCbi->BulkOutEndpoint = (EFI_USB_ENDPOINT_DESCRIPTOR *) (UsbCbi + 1) + 1;
+ CopyMem(UsbCbi->BulkOutEndpoint, &EndPoint, sizeof (EndPoint));
+ }
+ } else if (USB_IS_INTERRUPT_ENDPOINT (EndPoint.Attributes)) {
+ //
+ // Use the first interrupt endpoint if it is CBI0
+ //
+ if ((Interface->InterfaceProtocol == USB_MASS_STORE_CBI0) &&
+ (UsbCbi->InterruptEndpoint == NULL)) {
+
+ UsbCbi->InterruptEndpoint = (EFI_USB_ENDPOINT_DESCRIPTOR *) (UsbCbi + 1) + 2;
+ CopyMem(UsbCbi->InterruptEndpoint, &EndPoint, sizeof (EndPoint));
+ }
+ }
+ }
+
+ if ((UsbCbi->BulkInEndpoint == NULL) || (UsbCbi->BulkOutEndpoint == NULL)) {
+ Status = EFI_UNSUPPORTED;
+ goto ON_ERROR;
+ }
+ if ((Interface->InterfaceProtocol == USB_MASS_STORE_CBI0) && (UsbCbi->InterruptEndpoint == NULL)) {
+ Status = EFI_UNSUPPORTED;
+ goto ON_ERROR;
+ }
+
+ if (Context != NULL) {
+ *Context = UsbCbi;
+ } else {
+ FreePool (UsbCbi);
+ }
+
+ return EFI_SUCCESS;
+
+ON_ERROR:
+ FreePool (UsbCbi);
+ return Status;
+}
+
+/**
+ Send the command to the device using class specific control transfer.
+
+ This function sends command to the device using class specific control transfer.
+ The CBI contains three phases: Command, Data, and Status. This is Command phase.
+
+ @param UsbCbi The USB CBI protocol
+ @param Cmd The high level command to transfer to device
+ @param CmdLen The length of the command
+ @param Timeout The time to wait the command to finish
+
+ @retval EFI_SUCCESS The command is sent to the device.
+ @retval Others The command failed to transfer to device
+
+**/
+EFI_STATUS
+UsbCbiSendCommand (
+ IN USB_CBI_PROTOCOL *UsbCbi,
+ IN UINT8 *Cmd,
+ IN UINT8 CmdLen,
+ IN UINT32 Timeout
+ )
+{
+ EFI_USB_DEVICE_REQUEST Request;
+ EFI_STATUS Status;
+ UINT32 TransStatus;
+ UINTN DataLen;
+ INTN Retry;
+
+ //
+ // Fill in the device request, CBI use the "Accept Device-Specific
+ // Cmd" (ADSC) class specific request to send commands.
+ //
+ Request.RequestType = 0x21;
+ Request.Request = 0;
+ Request.Value = 0;
+ Request.Index = UsbCbi->Interface.InterfaceNumber;
+ Request.Length = CmdLen;
+
+ Status = EFI_SUCCESS;
+ Timeout = Timeout / USB_MASS_1_MILLISECOND;
+
+ for (Retry = 0; Retry < USB_CBI_MAX_RETRY; Retry++) {
+ //
+ // Use USB I/O Protocol to send the command to the device
+ //
+ TransStatus = 0;
+ DataLen = CmdLen;
+
+ Status = UsbCbi->UsbIo->UsbControlTransfer (
+ UsbCbi->UsbIo,
+ &Request,
+ EfiUsbDataOut,
+ Timeout,
+ Cmd,
+ DataLen,
+ &TransStatus
+ );
+ //
+ // The device can fail the command by STALL the control endpoint.
+ // It can delay the command by NAK the data or status stage, this
+ // is a "class-specific exemption to the USB specification". Retry
+ // if the command is NAKed.
+ //
+ if (EFI_ERROR (Status) && (TransStatus == EFI_USB_ERR_NAK)) {
+ continue;
+ }
+
+ break;
+ }
+
+ return Status;
+}
+
+
+/**
+ Transfer data between the device and host.
+
+ This function transfers data between the device and host.
+ The CBI contains three phases: Command, Data, and Status. This is Data phase.
+
+ @param UsbCbi The USB CBI device
+ @param DataDir The direction of the data transfer
+ @param Data The buffer to hold the data for input or output.
+ @param TransLen On input, the expected transfer length.
+ On output, the length of data actually transferred.
+ @param Timeout The time to wait for the command to execute
+
+ @retval EFI_SUCCESS The data transferred successfully.
+ @retval EFI_SUCCESS No data to transfer
+ @retval Others Failed to transfer all the data
+
+**/
+EFI_STATUS
+UsbCbiDataTransfer (
+ IN USB_CBI_PROTOCOL *UsbCbi,
+ IN EFI_USB_DATA_DIRECTION DataDir,
+ IN OUT UINT8 *Data,
+ IN OUT UINTN *TransLen,
+ IN UINT32 Timeout
+ )
+{
+ EFI_USB_ENDPOINT_DESCRIPTOR *Endpoint;
+ EFI_STATUS Status;
+ UINT32 TransStatus;
+ UINTN Remain;
+ UINTN Increment;
+ UINT8 *Next;
+ UINTN Retry;
+
+ //
+ // If no data to transfer, just return EFI_SUCCESS.
+ //
+ if ((DataDir == EfiUsbNoData) || (*TransLen == 0)) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Select the endpoint then issue the transfer
+ //
+ if (DataDir == EfiUsbDataIn) {
+ Endpoint = UsbCbi->BulkInEndpoint;
+ } else {
+ Endpoint = UsbCbi->BulkOutEndpoint;
+ }
+
+ Next = Data;
+ Remain = *TransLen;
+ Retry = 0;
+ Status = EFI_SUCCESS;
+ Timeout = Timeout / USB_MASS_1_MILLISECOND;
+
+ //
+ // Transfer the data with a loop. The length of data transferred once is restricted.
+ //
+ while (Remain > 0) {
+ TransStatus = 0;
+
+ if (Remain > (UINTN) USB_CBI_MAX_PACKET_NUM * Endpoint->MaxPacketSize) {
+ Increment = USB_CBI_MAX_PACKET_NUM * Endpoint->MaxPacketSize;
+ } else {
+ Increment = Remain;
+ }
+
+ Status = UsbCbi->UsbIo->UsbBulkTransfer (
+ UsbCbi->UsbIo,
+ Endpoint->EndpointAddress,
+ Next,
+ &Increment,
+ Timeout,
+ &TransStatus
+ );
+ if (EFI_ERROR (Status)) {
+ if (TransStatus == EFI_USB_ERR_NAK) {
+ //
+ // The device can NAK the host if either the data/buffer isn't
+ // aviable or the command is in-progress.
+ // If data are partially transferred, we just ignore NAK and continue.
+ // If all data have been transferred and status is NAK, then we retry for several times.
+ // If retry exceeds the USB_CBI_MAX_RETRY, then return error status.
+ //
+ if (Increment == 0) {
+ if (++Retry > USB_CBI_MAX_RETRY) {
+ goto ON_EXIT;
+ }
+ } else {
+ Next += Increment;
+ Remain -= Increment;
+ Retry = 0;
+ }
+
+ continue;
+ }
+
+ //
+ // The device can fail the command by STALL the bulk endpoint.
+ // Clear the stall if that is the case.
+ //
+ if (TransStatus == EFI_USB_ERR_STALL) {
+ UsbClearEndpointStall (UsbCbi->UsbIo, Endpoint->EndpointAddress);
+ }
+
+ goto ON_EXIT;
+ }
+
+ Next += Increment;
+ Remain -= Increment;
+ }
+
+ON_EXIT:
+ *TransLen -= Remain;
+ return Status;
+}
+
+
+/**
+ Gets the result of high level command execution from interrupt endpoint.
+
+ This function returns the USB transfer status, and put the high level
+ command execution result in Result.
+ The CBI contains three phases: Command, Data, and Status. This is Status phase.
+
+ @param UsbCbi The USB CBI protocol
+ @param Timeout The time to wait for the command to execute
+ @param Result The result of the command execution.
+
+ @retval EFI_SUCCESS The high level command execution result is
+ retrieved in Result.
+ @retval Others Failed to retrieve the result.
+
+**/
+EFI_STATUS
+UsbCbiGetStatus (
+ IN USB_CBI_PROTOCOL *UsbCbi,
+ IN UINT32 Timeout,
+ OUT USB_CBI_STATUS *Result
+ )
+{
+ UINTN Len;
+ UINT8 Endpoint;
+ EFI_STATUS Status;
+ UINT32 TransStatus;
+ INTN Retry;
+
+ Endpoint = UsbCbi->InterruptEndpoint->EndpointAddress;
+ Status = EFI_SUCCESS;
+ Timeout = Timeout / USB_MASS_1_MILLISECOND;
+
+ //
+ // Attemp to the read the result from interrupt endpoint
+ //
+ for (Retry = 0; Retry < USB_CBI_MAX_RETRY; Retry++) {
+ TransStatus = 0;
+ Len = sizeof (USB_CBI_STATUS);
+
+ Status = UsbCbi->UsbIo->UsbSyncInterruptTransfer (
+ UsbCbi->UsbIo,
+ Endpoint,
+ Result,
+ &Len,
+ Timeout,
+ &TransStatus
+ );
+ //
+ // The CBI can NAK the interrupt endpoint if the command is in-progress.
+ //
+ if (EFI_ERROR (Status) && (TransStatus == EFI_USB_ERR_NAK)) {
+ continue;
+ }
+
+ break;
+ }
+
+ return Status;
+}
+
+
+/**
+ Execute USB mass storage command through the CBI0/CBI1 transport protocol.
+
+ @param Context The USB CBI Protocol.
+ @param Cmd The command to transfer to device
+ @param CmdLen The length of the command
+ @param DataDir The direction of data transfer
+ @param Data The buffer to hold the data
+ @param DataLen The length of the buffer
+ @param Lun Should be 0, this field for bot only
+ @param Timeout The time to wait
+ @param CmdStatus The result of the command execution
+
+ @retval EFI_SUCCESS The command is executed successfully.
+ @retval Other Failed to execute the command
+
+**/
+EFI_STATUS
+UsbCbiExecCommand (
+ IN VOID *Context,
+ IN VOID *Cmd,
+ IN UINT8 CmdLen,
+ IN EFI_USB_DATA_DIRECTION DataDir,
+ IN VOID *Data,
+ IN UINT32 DataLen,
+ IN UINT8 Lun,
+ IN UINT32 Timeout,
+ OUT UINT32 *CmdStatus
+ )
+{
+ USB_CBI_PROTOCOL *UsbCbi;
+ USB_CBI_STATUS Result;
+ EFI_STATUS Status;
+ UINTN TransLen;
+
+ *CmdStatus = USB_MASS_CMD_SUCCESS;
+ UsbCbi = (USB_CBI_PROTOCOL *) Context;
+
+ //
+ // Send the command to the device. Return immediately if device
+ // rejects the command.
+ //
+ Status = UsbCbiSendCommand (UsbCbi, Cmd, CmdLen, Timeout);
+ if (EFI_ERROR (Status)) {
+ gBS->Stall(10 * USB_MASS_1_MILLISECOND);
+ DEBUG ((EFI_D_ERROR, "UsbCbiExecCommand: UsbCbiSendCommand (%r)\n",Status));
+ return Status;
+ }
+
+ //
+ // Transfer the data. Return this status if no interrupt endpoint
+ // is used to report the transfer status.
+ //
+ TransLen = (UINTN) DataLen;
+
+ Status = UsbCbiDataTransfer (UsbCbi, DataDir, Data, &TransLen, Timeout);
+ if (UsbCbi->InterruptEndpoint == NULL) {
+ DEBUG ((EFI_D_ERROR, "UsbCbiExecCommand: UsbCbiDataTransfer (%r)\n",Status));
+ return Status;
+ }
+
+ //
+ // Get the status. If it succeeds, interpret the result.
+ //
+ Status = UsbCbiGetStatus (UsbCbi, Timeout, &Result);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "UsbCbiExecCommand: UsbCbiGetStatus (%r)\n",Status));
+ return Status;
+ }
+
+ if (UsbCbi->Interface.InterfaceSubClass == USB_MASS_STORE_UFI) {
+ //
+ // For UFI device, ASC and ASCQ are returned.
+ //
+ // Do not set the USB_MASS_CMD_FAIL for a request sense command
+ // as a bad result type doesn't mean a cmd failure
+ //
+ if (Result.Type != 0 && *(UINT8*)Cmd != 0x03) {
+ *CmdStatus = USB_MASS_CMD_FAIL;
+ }
+ } else {
+ //
+ // Check page 27, CBI spec 1.1 for vaious reture status.
+ //
+ switch (Result.Value & 0x03) {
+ case 0x00:
+ //
+ // Pass
+ //
+ *CmdStatus = USB_MASS_CMD_SUCCESS;
+ break;
+
+ case 0x02:
+ //
+ // Phase Error, response with reset.
+ // No break here to fall through to "Fail".
+ //
+ UsbCbiResetDevice (UsbCbi, FALSE);
+
+ case 0x01:
+ //
+ // Fail
+ //
+ *CmdStatus = USB_MASS_CMD_FAIL;
+ break;
+
+ case 0x03:
+ //
+ // Persistent Fail. Need to send REQUEST SENSE.
+ //
+ *CmdStatus = USB_MASS_CMD_PERSISTENT;
+ break;
+ }
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ Reset the USB mass storage device by CBI protocol.
+
+ This function resets the USB mass storage device by CBI protocol.
+ The reset is defined as a non-data command. Don't use UsbCbiExecCommand
+ to send the command to device because that may introduce recursive loop.
+
+ @param Context The USB CBI protocol
+ @param ExtendedVerification The flag controlling the rule of reset.
+ Not used here.
+
+ @retval EFI_SUCCESS The device is reset.
+ @retval Others Failed to reset the device.
+
+**/
+EFI_STATUS
+UsbCbiResetDevice (
+ IN VOID *Context,
+ IN BOOLEAN ExtendedVerification
+ )
+{
+ UINT8 ResetCmd[USB_CBI_RESET_CMD_LEN];
+ USB_CBI_PROTOCOL *UsbCbi;
+ USB_CBI_STATUS Result;
+ EFI_STATUS Status;
+ UINT32 Timeout;
+
+ UsbCbi = (USB_CBI_PROTOCOL *) Context;
+
+ //
+ // Fill in the reset command.
+ //
+ SetMem (ResetCmd, USB_CBI_RESET_CMD_LEN, 0xFF);
+
+ ResetCmd[0] = 0x1D;
+ ResetCmd[1] = 0x04;
+ Timeout = USB_CBI_RESET_DEVICE_TIMEOUT / USB_MASS_1_MILLISECOND;
+
+ //
+ // Send the command to the device. Don't use UsbCbiExecCommand here.
+ //
+ Status = UsbCbiSendCommand (UsbCbi, ResetCmd, USB_CBI_RESET_CMD_LEN, Timeout);
+ if (EFI_ERROR (Status)) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ //
+ // Just retrieve the status and ignore that. Then stall
+ // 50ms to wait for it to complete.
+ //
+ UsbCbiGetStatus (UsbCbi, Timeout, &Result);
+ gBS->Stall (USB_CBI_RESET_DEVICE_STALL);
+
+ //
+ // Clear the Bulk-In and Bulk-Out stall condition and init data toggle.
+ //
+ UsbClearEndpointStall (UsbCbi->UsbIo, UsbCbi->BulkInEndpoint->EndpointAddress);
+ UsbClearEndpointStall (UsbCbi->UsbIo, UsbCbi->BulkOutEndpoint->EndpointAddress);
+
+ return Status;
+}
+
+
+/**
+ Clean up the CBI protocol's resource.
+
+ @param Context The instance of CBI protocol.
+
+ @retval EFI_SUCCESS The resource is cleaned up.
+
+**/
+EFI_STATUS
+UsbCbiCleanUp (
+ IN VOID *Context
+ )
+{
+ FreePool (Context);
+ return EFI_SUCCESS;
+}
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassCbi.h b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassCbi.h
new file mode 100644
index 0000000000..b414a46fde
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassCbi.h
@@ -0,0 +1,140 @@
+/** @file
+ Defination for the USB mass storage Control/Bulk/Interrupt (CBI) transport,
+ according to USB Mass Storage Class Control/Bulk/Interrupt (CBI) Transport, Revision 1.1.
+
+Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _EFI_USBMASS_CBI_H_
+#define _EFI_USBMASS_CBI_H_
+
+extern USB_MASS_TRANSPORT mUsbCbi0Transport;
+extern USB_MASS_TRANSPORT mUsbCbi1Transport;
+
+#define USB_CBI_MAX_PACKET_NUM 16
+#define USB_CBI_RESET_CMD_LEN 12
+//
+// USB CBI retry C/B/I transport times, set by experience
+//
+#define USB_CBI_MAX_RETRY 3
+//
+// Time to wait for USB CBI reset to complete, set by experience
+//
+#define USB_CBI_RESET_DEVICE_STALL (50 * USB_MASS_1_MILLISECOND)
+//
+// USB CBI transport timeout, set by experience
+//
+#define USB_CBI_RESET_DEVICE_TIMEOUT (1 * USB_MASS_1_SECOND)
+
+typedef struct {
+ //
+ // Put Interface at the first field to make it easy to distinguish BOT/CBI Protocol instance
+ //
+ EFI_USB_INTERFACE_DESCRIPTOR Interface;
+ EFI_USB_ENDPOINT_DESCRIPTOR *BulkInEndpoint;
+ EFI_USB_ENDPOINT_DESCRIPTOR *BulkOutEndpoint;
+ EFI_USB_ENDPOINT_DESCRIPTOR *InterruptEndpoint;
+ EFI_USB_IO_PROTOCOL *UsbIo;
+} USB_CBI_PROTOCOL;
+
+#pragma pack(1)
+typedef struct {
+ UINT8 Type;
+ UINT8 Value;
+} USB_CBI_STATUS;
+#pragma pack()
+
+/**
+ Initializes USB CBI protocol.
+
+ This function initializes the USB mass storage class CBI protocol.
+ It will save its context which is a USB_CBI_PROTOCOL structure
+ in the Context if Context isn't NULL.
+
+ @param UsbIo The USB I/O Protocol instance
+ @param Context The buffer to save the context to
+
+ @retval EFI_SUCCESS The device is successfully initialized.
+ @retval EFI_UNSUPPORTED The transport protocol doesn't support the device.
+ @retval Other The USB CBI initialization fails.
+
+**/
+EFI_STATUS
+UsbCbiInit (
+ IN EFI_USB_IO_PROTOCOL *UsbIo,
+ OUT VOID **Context OPTIONAL
+ );
+
+/**
+ Execute USB mass storage command through the CBI0/CBI1 transport protocol.
+
+ @param Context The USB CBI Protocol.
+ @param Cmd The command to transfer to device
+ @param CmdLen The length of the command
+ @param DataDir The direction of data transfer
+ @param Data The buffer to hold the data
+ @param DataLen The length of the buffer
+ @param Lun Should be 0, this field for bot only
+ @param Timeout The time to wait
+ @param CmdStatus The result of the command execution
+
+ @retval EFI_SUCCESS The command is executed successfully.
+ @retval Other Failed to execute the command
+
+**/
+EFI_STATUS
+UsbCbiExecCommand (
+ IN VOID *Context,
+ IN VOID *Cmd,
+ IN UINT8 CmdLen,
+ IN EFI_USB_DATA_DIRECTION DataDir,
+ IN VOID *Data,
+ IN UINT32 DataLen,
+ IN UINT8 Lun,
+ IN UINT32 Timeout,
+ OUT UINT32 *CmdStatus
+ );
+
+/**
+ Reset the USB mass storage device by CBI protocol.
+
+ This function resets the USB mass storage device by CBI protocol.
+ The reset is defined as a non-data command. Don't use UsbCbiExecCommand
+ to send the command to device because that may introduce recursive loop.
+
+ @param Context The USB CBI protocol
+ @param ExtendedVerification The flag controlling the rule of reset.
+ Not used here.
+
+ @retval EFI_SUCCESS The device is reset.
+ @retval Others Failed to reset the device.
+
+**/
+EFI_STATUS
+UsbCbiResetDevice (
+ IN VOID *Context,
+ IN BOOLEAN ExtendedVerification
+ );
+
+/**
+ Clean up the CBI protocol's resource.
+
+ @param Context The instance of CBI protocol.
+
+ @retval EFI_SUCCESS The resource is cleaned up.
+
+**/
+EFI_STATUS
+UsbCbiCleanUp (
+ IN VOID *Context
+ );
+
+#endif
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassDiskInfo.c b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassDiskInfo.c
new file mode 100644
index 0000000000..1fa8543e2b
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassDiskInfo.c
@@ -0,0 +1,162 @@
+/** @file
+ This file is used to implement the EFI_DISK_INFO_PROTOCOL interface.
+
+Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "UsbMass.h"
+
+EFI_DISK_INFO_PROTOCOL gUsbDiskInfoProtocolTemplate = {
+ EFI_DISK_INFO_USB_INTERFACE_GUID,
+ UsbDiskInfoInquiry,
+ UsbDiskInfoIdentify,
+ UsbDiskInfoSenseData,
+ UsbDiskInfoWhichIde
+};
+
+/**
+ Initialize the installation of DiskInfo protocol.
+
+ This function prepares for the installation of DiskInfo protocol on the child handle.
+ By default, it installs DiskInfo protocol with USB interface GUID.
+
+ @param[in] UsbMass The pointer of USB_MASS_DEVICE.
+
+**/
+VOID
+InitializeDiskInfo (
+ IN USB_MASS_DEVICE *UsbMass
+ )
+{
+ CopyMem (&UsbMass->DiskInfo, &gUsbDiskInfoProtocolTemplate, sizeof (gUsbDiskInfoProtocolTemplate));
+}
+
+
+/**
+ Provides inquiry information for the controller type.
+
+ This function is used to get inquiry data. Data format
+ of Identify data is defined by the Interface GUID.
+
+ @param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance.
+ @param[in, out] InquiryData Pointer to a buffer for the inquiry data.
+ @param[in, out] InquiryDataSize Pointer to the value for the inquiry data size.
+
+ @retval EFI_SUCCESS The command was accepted without any errors.
+ @retval EFI_NOT_FOUND Device does not support this data class
+ @retval EFI_DEVICE_ERROR Error reading InquiryData from device
+ @retval EFI_BUFFER_TOO_SMALL InquiryDataSize not big enough
+
+**/
+EFI_STATUS
+EFIAPI
+UsbDiskInfoInquiry (
+ IN EFI_DISK_INFO_PROTOCOL *This,
+ IN OUT VOID *InquiryData,
+ IN OUT UINT32 *InquiryDataSize
+ )
+{
+ EFI_STATUS Status;
+ USB_MASS_DEVICE *UsbMass;
+
+ UsbMass = USB_MASS_DEVICE_FROM_DISK_INFO (This);
+
+ Status = EFI_BUFFER_TOO_SMALL;
+ if (*InquiryDataSize >= sizeof (UsbMass->InquiryData)) {
+ Status = EFI_SUCCESS;
+ CopyMem (InquiryData, &UsbMass->InquiryData, sizeof (UsbMass->InquiryData));
+ }
+ *InquiryDataSize = sizeof (UsbMass->InquiryData);
+ return Status;
+}
+
+
+/**
+ Provides identify information for the controller type.
+
+ This function is used to get identify data. Data format
+ of Identify data is defined by the Interface GUID.
+
+ @param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL
+ instance.
+ @param[in, out] IdentifyData Pointer to a buffer for the identify data.
+ @param[in, out] IdentifyDataSize Pointer to the value for the identify data
+ size.
+
+ @retval EFI_SUCCESS The command was accepted without any errors.
+ @retval EFI_NOT_FOUND Device does not support this data class
+ @retval EFI_DEVICE_ERROR Error reading IdentifyData from device
+ @retval EFI_BUFFER_TOO_SMALL IdentifyDataSize not big enough
+
+**/
+EFI_STATUS
+EFIAPI
+UsbDiskInfoIdentify (
+ IN EFI_DISK_INFO_PROTOCOL *This,
+ IN OUT VOID *IdentifyData,
+ IN OUT UINT32 *IdentifyDataSize
+ )
+{
+ return EFI_NOT_FOUND;
+}
+
+/**
+ Provides sense data information for the controller type.
+
+ This function is used to get sense data.
+ Data format of Sense data is defined by the Interface GUID.
+
+ @param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance.
+ @param[in, out] SenseData Pointer to the SenseData.
+ @param[in, out] SenseDataSize Size of SenseData in bytes.
+ @param[out] SenseDataNumber Pointer to the value for the sense data size.
+
+ @retval EFI_SUCCESS The command was accepted without any errors.
+ @retval EFI_NOT_FOUND Device does not support this data class.
+ @retval EFI_DEVICE_ERROR Error reading SenseData from device.
+ @retval EFI_BUFFER_TOO_SMALL SenseDataSize not big enough.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbDiskInfoSenseData (
+ IN EFI_DISK_INFO_PROTOCOL *This,
+ IN OUT VOID *SenseData,
+ IN OUT UINT32 *SenseDataSize,
+ OUT UINT8 *SenseDataNumber
+ )
+{
+ return EFI_NOT_FOUND;
+}
+
+
+/**
+ This function is used to get controller information.
+
+ @param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance.
+ @param[out] IdeChannel Pointer to the Ide Channel number. Primary or secondary.
+ @param[out] IdeDevice Pointer to the Ide Device number. Master or slave.
+
+ @retval EFI_SUCCESS IdeChannel and IdeDevice are valid.
+ @retval EFI_UNSUPPORTED This is not an IDE device.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbDiskInfoWhichIde (
+ IN EFI_DISK_INFO_PROTOCOL *This,
+ OUT UINT32 *IdeChannel,
+ OUT UINT32 *IdeDevice
+ )
+{
+ return EFI_UNSUPPORTED;
+}
+
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassDiskInfo.h b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassDiskInfo.h
new file mode 100644
index 0000000000..e0a32ca8ee
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassDiskInfo.h
@@ -0,0 +1,129 @@
+/** @file
+ Header file for EFI_DISK_INFO_PROTOCOL interface.
+
+Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _EFI_USBMASS_DISKINFO_H_
+#define _EFI_USBMASS_DISKINFO_H_
+
+/**
+ Initialize the installation of DiskInfo protocol.
+
+ This function prepares for the installation of DiskInfo protocol on the child handle.
+ By default, it installs DiskInfo protocol with USB interface GUID.
+
+ @param UsbMass The pointer of USB_MASS_DEVICE.
+
+**/
+VOID
+InitializeDiskInfo (
+ IN USB_MASS_DEVICE *UsbMass
+ );
+
+
+/**
+ Provides inquiry information for the controller type.
+
+ This function is used to get inquiry data. Data format
+ of Identify data is defined by the Interface GUID.
+
+ @param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance.
+ @param[in, out] InquiryData Pointer to a buffer for the inquiry data.
+ @param[in, out] InquiryDataSize Pointer to the value for the inquiry data size.
+
+ @retval EFI_SUCCESS The command was accepted without any errors.
+ @retval EFI_NOT_FOUND Device does not support this data class
+ @retval EFI_DEVICE_ERROR Error reading InquiryData from device
+ @retval EFI_BUFFER_TOO_SMALL InquiryDataSize not big enough
+
+**/
+EFI_STATUS
+EFIAPI
+UsbDiskInfoInquiry (
+ IN EFI_DISK_INFO_PROTOCOL *This,
+ IN OUT VOID *InquiryData,
+ IN OUT UINT32 *InquiryDataSize
+ );
+
+/**
+ Provides identify information for the controller type.
+
+ This function is used to get identify data. Data format
+ of Identify data is defined by the Interface GUID.
+
+ @param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL
+ instance.
+ @param[in, out] IdentifyData Pointer to a buffer for the identify data.
+ @param[in, out] IdentifyDataSize Pointer to the value for the identify data
+ size.
+
+ @retval EFI_SUCCESS The command was accepted without any errors.
+ @retval EFI_NOT_FOUND Device does not support this data class
+ @retval EFI_DEVICE_ERROR Error reading IdentifyData from device
+ @retval EFI_BUFFER_TOO_SMALL IdentifyDataSize not big enough
+
+**/
+EFI_STATUS
+EFIAPI
+UsbDiskInfoIdentify (
+ IN EFI_DISK_INFO_PROTOCOL *This,
+ IN OUT VOID *IdentifyData,
+ IN OUT UINT32 *IdentifyDataSize
+ );
+
+/**
+ Provides sense data information for the controller type.
+
+ This function is used to get sense data.
+ Data format of Sense data is defined by the Interface GUID.
+
+ @param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance.
+ @param[in, out] SenseData Pointer to the SenseData.
+ @param[in, out] SenseDataSize Size of SenseData in bytes.
+ @param[out] SenseDataNumber Pointer to the value for the sense data size.
+
+ @retval EFI_SUCCESS The command was accepted without any errors.
+ @retval EFI_NOT_FOUND Device does not support this data class.
+ @retval EFI_DEVICE_ERROR Error reading SenseData from device.
+ @retval EFI_BUFFER_TOO_SMALL SenseDataSize not big enough.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbDiskInfoSenseData (
+ IN EFI_DISK_INFO_PROTOCOL *This,
+ IN OUT VOID *SenseData,
+ IN OUT UINT32 *SenseDataSize,
+ OUT UINT8 *SenseDataNumber
+ );
+
+
+/**
+ This function is used to get controller information.
+
+ @param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance.
+ @param[out] IdeChannel Pointer to the Ide Channel number. Primary or secondary.
+ @param[out] IdeDevice Pointer to the Ide Device number. Master or slave.
+
+ @retval EFI_SUCCESS IdeChannel and IdeDevice are valid.
+ @retval EFI_UNSUPPORTED This is not an IDE device.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbDiskInfoWhichIde (
+ IN EFI_DISK_INFO_PROTOCOL *This,
+ OUT UINT32 *IdeChannel,
+ OUT UINT32 *IdeDevice
+ );
+
+#endif
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.c b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.c
new file mode 100644
index 0000000000..9d1bb25fb3
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.c
@@ -0,0 +1,1106 @@
+/** @file
+ USB Mass Storage Driver that manages USB Mass Storage Device and produces Block I/O Protocol.
+
+Copyright (c) 2007 - 2015, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "UsbMass.h"
+
+#define USB_MASS_TRANSPORT_COUNT 3
+//
+// Array of USB transport interfaces.
+//
+USB_MASS_TRANSPORT *mUsbMassTransport[USB_MASS_TRANSPORT_COUNT] = {
+ &mUsbCbi0Transport,
+ &mUsbCbi1Transport,
+ &mUsbBotTransport,
+};
+
+EFI_DRIVER_BINDING_PROTOCOL gUSBMassDriverBinding = {
+ USBMassDriverBindingSupported,
+ USBMassDriverBindingStart,
+ USBMassDriverBindingStop,
+ 0x11,
+ NULL,
+ NULL
+};
+
+/**
+ Reset the block device.
+
+ This function implements EFI_BLOCK_IO_PROTOCOL.Reset().
+ It resets the block device hardware.
+ ExtendedVerification is ignored in this implementation.
+
+ @param This Indicates a pointer to the calling context.
+ @param ExtendedVerification Indicates that the driver may perform a more exhaustive
+ verification operation of the device during reset.
+
+ @retval EFI_SUCCESS The block device was reset.
+ @retval EFI_DEVICE_ERROR The block device is not functioning correctly and could not be reset.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassReset (
+ IN EFI_BLOCK_IO_PROTOCOL *This,
+ IN BOOLEAN ExtendedVerification
+ )
+{
+ USB_MASS_DEVICE *UsbMass;
+ EFI_TPL OldTpl;
+ EFI_STATUS Status;
+
+ //
+ // Raise TPL to TPL_NOTIFY to serialize all its operations
+ // to protect shared data structures.
+ //
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+
+ UsbMass = USB_MASS_DEVICE_FROM_BLOCK_IO (This);
+ Status = UsbMass->Transport->Reset (UsbMass->Context, ExtendedVerification);
+
+ gBS->RestoreTPL (OldTpl);
+
+ return Status;
+}
+
+/**
+ Reads the requested number of blocks from the device.
+
+ This function implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks().
+ It reads the requested number of blocks from the device.
+ All the blocks are read, or an error is returned.
+
+ @param This Indicates a pointer to the calling context.
+ @param MediaId The media ID that the read request is for.
+ @param Lba The starting logical block address to read from on the device.
+ @param BufferSize The size of the Buffer in bytes.
+ This must be a multiple of the intrinsic block size of the device.
+ @param Buffer A pointer to the destination buffer for the data. The caller is
+ responsible for either having implicit or explicit ownership of the buffer.
+
+ @retval EFI_SUCCESS The data was read correctly from the device.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the read operation.
+ @retval EFI_NO_MEDIA There is no media in the device.
+ @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic block size of the device.
+ @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
+ or the buffer is not on proper alignment.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassReadBlocks (
+ IN EFI_BLOCK_IO_PROTOCOL *This,
+ IN UINT32 MediaId,
+ IN EFI_LBA Lba,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
+ )
+{
+ USB_MASS_DEVICE *UsbMass;
+ EFI_BLOCK_IO_MEDIA *Media;
+ EFI_STATUS Status;
+ EFI_TPL OldTpl;
+ UINTN TotalBlock;
+
+ //
+ // Raise TPL to TPL_NOTIFY to serialize all its operations
+ // to protect shared data structures.
+ //
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+ UsbMass = USB_MASS_DEVICE_FROM_BLOCK_IO (This);
+ Media = &UsbMass->BlockIoMedia;
+
+ //
+ // If it is a removable media, such as CD-Rom or Usb-Floppy,
+ // need to detect the media before each read/write. While some of
+ // Usb-Flash is marked as removable media.
+ //
+ if (Media->RemovableMedia) {
+ Status = UsbBootDetectMedia (UsbMass);
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+ }
+
+ if (!(Media->MediaPresent)) {
+ Status = EFI_NO_MEDIA;
+ goto ON_EXIT;
+ }
+
+ if (MediaId != Media->MediaId) {
+ Status = EFI_MEDIA_CHANGED;
+ goto ON_EXIT;
+ }
+
+ if (BufferSize == 0) {
+ Status = EFI_SUCCESS;
+ goto ON_EXIT;
+ }
+
+ if (Buffer == NULL) {
+ Status = EFI_INVALID_PARAMETER;
+ goto ON_EXIT;
+ }
+
+ //
+ // BufferSize must be a multiple of the intrinsic block size of the device.
+ //
+ if ((BufferSize % Media->BlockSize) != 0) {
+ Status = EFI_BAD_BUFFER_SIZE;
+ goto ON_EXIT;
+ }
+
+ TotalBlock = BufferSize / Media->BlockSize;
+
+ //
+ // Make sure the range to read is valid.
+ //
+ if (Lba + TotalBlock - 1 > Media->LastBlock) {
+ Status = EFI_INVALID_PARAMETER;
+ goto ON_EXIT;
+ }
+
+ if (UsbMass->Cdb16Byte) {
+ Status = UsbBootReadBlocks16 (UsbMass, Lba, TotalBlock, Buffer);
+ } else {
+ Status = UsbBootReadBlocks (UsbMass, (UINT32) Lba, TotalBlock, Buffer);
+ }
+
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "UsbMassReadBlocks: UsbBootReadBlocks (%r) -> Reset\n", Status));
+ UsbMassReset (This, TRUE);
+ }
+
+ON_EXIT:
+ gBS->RestoreTPL (OldTpl);
+ return Status;
+}
+
+
+/**
+ Writes a specified number of blocks to the device.
+
+ This function implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks().
+ It writes a specified number of blocks to the device.
+ All blocks are written, or an error is returned.
+
+ @param This Indicates a pointer to the calling context.
+ @param MediaId The media ID that the write request is for.
+ @param Lba The starting logical block address to be written.
+ @param BufferSize The size of the Buffer in bytes.
+ This must be a multiple of the intrinsic block size of the device.
+ @param Buffer Pointer to the source buffer for the data.
+
+ @retval EFI_SUCCESS The data were written correctly to the device.
+ @retval EFI_WRITE_PROTECTED The device cannot be written to.
+ @retval EFI_NO_MEDIA There is no media in the device.
+ @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the write operation.
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic
+ block size of the device.
+ @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
+ or the buffer is not on proper alignment.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassWriteBlocks (
+ IN EFI_BLOCK_IO_PROTOCOL *This,
+ IN UINT32 MediaId,
+ IN EFI_LBA Lba,
+ IN UINTN BufferSize,
+ IN VOID *Buffer
+ )
+{
+ USB_MASS_DEVICE *UsbMass;
+ EFI_BLOCK_IO_MEDIA *Media;
+ EFI_STATUS Status;
+ EFI_TPL OldTpl;
+ UINTN TotalBlock;
+
+ //
+ // Raise TPL to TPL_NOTIFY to serialize all its operations
+ // to protect shared data structures.
+ //
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+ UsbMass = USB_MASS_DEVICE_FROM_BLOCK_IO (This);
+ Media = &UsbMass->BlockIoMedia;
+
+ //
+ // If it is a removable media, such as CD-Rom or Usb-Floppy,
+ // need to detect the media before each read/write. Some of
+ // USB Flash is marked as removable media.
+ //
+ if (Media->RemovableMedia) {
+ Status = UsbBootDetectMedia (UsbMass);
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+ }
+
+ if (!(Media->MediaPresent)) {
+ Status = EFI_NO_MEDIA;
+ goto ON_EXIT;
+ }
+
+ if (MediaId != Media->MediaId) {
+ Status = EFI_MEDIA_CHANGED;
+ goto ON_EXIT;
+ }
+
+ if (BufferSize == 0) {
+ Status = EFI_SUCCESS;
+ goto ON_EXIT;
+ }
+
+ if (Buffer == NULL) {
+ Status = EFI_INVALID_PARAMETER;
+ goto ON_EXIT;
+ }
+
+ //
+ // BufferSize must be a multiple of the intrinsic block size of the device.
+ //
+ if ((BufferSize % Media->BlockSize) != 0) {
+ Status = EFI_BAD_BUFFER_SIZE;
+ goto ON_EXIT;
+ }
+
+ TotalBlock = BufferSize / Media->BlockSize;
+
+ //
+ // Make sure the range to write is valid.
+ //
+ if (Lba + TotalBlock - 1 > Media->LastBlock) {
+ Status = EFI_INVALID_PARAMETER;
+ goto ON_EXIT;
+ }
+
+ //
+ // Try to write the data even the device is marked as ReadOnly,
+ // and clear the status should the write succeed.
+ //
+ if (UsbMass->Cdb16Byte) {
+ Status = UsbBootWriteBlocks16 (UsbMass, Lba, TotalBlock, Buffer);
+ } else {
+ Status = UsbBootWriteBlocks (UsbMass, (UINT32) Lba, TotalBlock, Buffer);
+ }
+
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "UsbMassWriteBlocks: UsbBootWriteBlocks (%r) -> Reset\n", Status));
+ UsbMassReset (This, TRUE);
+ }
+
+ON_EXIT:
+ gBS->RestoreTPL (OldTpl);
+ return Status;
+}
+
+/**
+ Flushes all modified data to a physical block device.
+
+ This function implements EFI_BLOCK_IO_PROTOCOL.FlushBlocks().
+ USB mass storage device doesn't support write cache,
+ so return EFI_SUCCESS directly.
+
+ @param This Indicates a pointer to the calling context.
+
+ @retval EFI_SUCCESS All outstanding data were written correctly to the device.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting to write data.
+ @retval EFI_NO_MEDIA There is no media in the device.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassFlushBlocks (
+ IN EFI_BLOCK_IO_PROTOCOL *This
+ )
+{
+ return EFI_SUCCESS;
+}
+
+/**
+ Initialize the media parameter data for EFI_BLOCK_IO_MEDIA of Block I/O Protocol.
+
+ @param UsbMass The USB mass storage device
+
+ @retval EFI_SUCCESS The media parameters are updated successfully.
+ @retval Others Failed to get the media parameters.
+
+**/
+EFI_STATUS
+UsbMassInitMedia (
+ IN USB_MASS_DEVICE *UsbMass
+ )
+{
+ EFI_BLOCK_IO_MEDIA *Media;
+ EFI_STATUS Status;
+
+ Media = &UsbMass->BlockIoMedia;
+
+ //
+ // Fields of EFI_BLOCK_IO_MEDIA are defined in UEFI 2.0 spec,
+ // section for Block I/O Protocol.
+ //
+ Media->MediaPresent = FALSE;
+ Media->LogicalPartition = FALSE;
+ Media->ReadOnly = FALSE;
+ Media->WriteCaching = FALSE;
+ Media->IoAlign = 0;
+ Media->MediaId = 1;
+
+ Status = UsbBootGetParams (UsbMass);
+ return Status;
+}
+
+/**
+ Initilize the USB Mass Storage transport.
+
+ This function tries to find the matching USB Mass Storage transport
+ protocol for USB device. If found, initializes the matching transport.
+
+ @param This The USB mass driver's driver binding.
+ @param Controller The device to test.
+ @param Transport The pointer to pointer to USB_MASS_TRANSPORT.
+ @param Context The parameter for USB_MASS_DEVICE.Context.
+ @param MaxLun Get the MaxLun if is BOT dev.
+
+ @retval EFI_SUCCESS The initialization is successful.
+ @retval EFI_UNSUPPORTED No matching transport protocol is found.
+ @retval Others Failed to initialize dev.
+
+**/
+EFI_STATUS
+UsbMassInitTransport (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ OUT USB_MASS_TRANSPORT **Transport,
+ OUT VOID **Context,
+ OUT UINT8 *MaxLun
+ )
+{
+ EFI_USB_IO_PROTOCOL *UsbIo;
+ EFI_USB_INTERFACE_DESCRIPTOR Interface;
+ UINT8 Index;
+ EFI_STATUS Status;
+
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiUsbIoProtocolGuid,
+ (VOID **) &UsbIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &Interface);
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+
+ Status = EFI_UNSUPPORTED;
+
+ //
+ // Traverse the USB_MASS_TRANSPORT arrary and try to find the
+ // matching transport protocol.
+ // If not found, return EFI_UNSUPPORTED.
+ // If found, execute USB_MASS_TRANSPORT.Init() to initialize the transport context.
+ //
+ for (Index = 0; Index < USB_MASS_TRANSPORT_COUNT; Index++) {
+ *Transport = mUsbMassTransport[Index];
+
+ if (Interface.InterfaceProtocol == (*Transport)->Protocol) {
+ Status = (*Transport)->Init (UsbIo, Context);
+ break;
+ }
+ }
+
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+
+ //
+ // For BOT device, try to get its max LUN.
+ // If max LUN is 0, then it is a non-lun device.
+ // Otherwise, it is a multi-lun device.
+ //
+ if ((*Transport)->Protocol == USB_MASS_STORE_BOT) {
+ (*Transport)->GetMaxLun (*Context, MaxLun);
+ }
+
+ON_EXIT:
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiUsbIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ return Status;
+}
+
+/**
+ Initialize data for device that supports multiple LUNSs.
+
+ @param This The Driver Binding Protocol instance.
+ @param Controller The device to initialize.
+ @param Transport Pointer to USB_MASS_TRANSPORT.
+ @param Context Parameter for USB_MASS_DEVICE.Context.
+ @param DevicePath The remaining device path.
+ @param MaxLun The max LUN number.
+
+ @retval EFI_SUCCESS At least one LUN is initialized successfully.
+ @retval EFI_NOT_FOUND Fail to initialize any of multiple LUNs.
+
+**/
+EFI_STATUS
+UsbMassInitMultiLun (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN USB_MASS_TRANSPORT *Transport,
+ IN VOID *Context,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
+ IN UINT8 MaxLun
+ )
+{
+ USB_MASS_DEVICE *UsbMass;
+ EFI_USB_IO_PROTOCOL *UsbIo;
+ DEVICE_LOGICAL_UNIT_DEVICE_PATH LunNode;
+ UINT8 Index;
+ EFI_STATUS Status;
+ EFI_STATUS ReturnStatus;
+
+ ASSERT (MaxLun > 0);
+ ReturnStatus = EFI_NOT_FOUND;
+
+ for (Index = 0; Index <= MaxLun; Index++) {
+
+ DEBUG ((EFI_D_INFO, "UsbMassInitMultiLun: Start to initialize No.%d logic unit\n", Index));
+
+ UsbIo = NULL;
+ UsbMass = AllocateZeroPool (sizeof (USB_MASS_DEVICE));
+ ASSERT (UsbMass != NULL);
+
+ UsbMass->Signature = USB_MASS_SIGNATURE;
+ UsbMass->UsbIo = UsbIo;
+ UsbMass->BlockIo.Media = &UsbMass->BlockIoMedia;
+ UsbMass->BlockIo.Reset = UsbMassReset;
+ UsbMass->BlockIo.ReadBlocks = UsbMassReadBlocks;
+ UsbMass->BlockIo.WriteBlocks = UsbMassWriteBlocks;
+ UsbMass->BlockIo.FlushBlocks = UsbMassFlushBlocks;
+ UsbMass->OpticalStorage = FALSE;
+ UsbMass->Transport = Transport;
+ UsbMass->Context = Context;
+ UsbMass->Lun = Index;
+
+ //
+ // Initialize the media parameter data for EFI_BLOCK_IO_MEDIA of Block I/O Protocol.
+ //
+ Status = UsbMassInitMedia (UsbMass);
+ if ((EFI_ERROR (Status)) && (Status != EFI_NO_MEDIA)) {
+ DEBUG ((EFI_D_ERROR, "UsbMassInitMultiLun: UsbMassInitMedia (%r)\n", Status));
+ FreePool (UsbMass);
+ continue;
+ }
+
+ //
+ // Create a device path node for device logic unit, and append it.
+ //
+ LunNode.Header.Type = MESSAGING_DEVICE_PATH;
+ LunNode.Header.SubType = MSG_DEVICE_LOGICAL_UNIT_DP;
+ LunNode.Lun = UsbMass->Lun;
+
+ SetDevicePathNodeLength (&LunNode.Header, sizeof (LunNode));
+
+ UsbMass->DevicePath = AppendDevicePathNode (DevicePath, &LunNode.Header);
+
+ if (UsbMass->DevicePath == NULL) {
+ DEBUG ((EFI_D_ERROR, "UsbMassInitMultiLun: failed to create device logic unit device path\n"));
+ Status = EFI_OUT_OF_RESOURCES;
+ FreePool (UsbMass);
+ continue;
+ }
+
+ InitializeDiskInfo (UsbMass);
+
+ //
+ // Create a new handle for each LUN, and install Block I/O Protocol and Device Path Protocol.
+ //
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &UsbMass->Controller,
+ &gEfiDevicePathProtocolGuid,
+ UsbMass->DevicePath,
+ &gEfiBlockIoProtocolGuid,
+ &UsbMass->BlockIo,
+ &gEfiDiskInfoProtocolGuid,
+ &UsbMass->DiskInfo,
+ NULL
+ );
+
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "UsbMassInitMultiLun: InstallMultipleProtocolInterfaces (%r)\n", Status));
+ FreePool (UsbMass->DevicePath);
+ FreePool (UsbMass);
+ continue;
+ }
+
+ //
+ // Open USB I/O Protocol by child to setup a parent-child relationship.
+ //
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiUsbIoProtocolGuid,
+ (VOID **) &UsbIo,
+ This->DriverBindingHandle,
+ UsbMass->Controller,
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+ );
+
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "UsbMassInitMultiLun: OpenUsbIoProtocol By Child (%r)\n", Status));
+ gBS->UninstallMultipleProtocolInterfaces (
+ &UsbMass->Controller,
+ &gEfiDevicePathProtocolGuid,
+ UsbMass->DevicePath,
+ &gEfiBlockIoProtocolGuid,
+ &UsbMass->BlockIo,
+ &gEfiDiskInfoProtocolGuid,
+ &UsbMass->DiskInfo,
+ NULL
+ );
+ FreePool (UsbMass->DevicePath);
+ FreePool (UsbMass);
+ continue;
+ }
+ ReturnStatus = EFI_SUCCESS;
+ DEBUG ((EFI_D_INFO, "UsbMassInitMultiLun: Success to initialize No.%d logic unit\n", Index));
+ }
+
+ return ReturnStatus;
+}
+
+/**
+ Initialize data for device that does not support multiple LUNSs.
+
+ @param This The Driver Binding Protocol instance.
+ @param Controller The device to initialize.
+ @param Transport Pointer to USB_MASS_TRANSPORT.
+ @param Context Parameter for USB_MASS_DEVICE.Context.
+
+ @retval EFI_SUCCESS Initialization succeeds.
+ @retval Other Initialization fails.
+
+**/
+EFI_STATUS
+UsbMassInitNonLun (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN USB_MASS_TRANSPORT *Transport,
+ IN VOID *Context
+ )
+{
+ USB_MASS_DEVICE *UsbMass;
+ EFI_USB_IO_PROTOCOL *UsbIo;
+ EFI_STATUS Status;
+
+ UsbIo = NULL;
+ UsbMass = AllocateZeroPool (sizeof (USB_MASS_DEVICE));
+ ASSERT (UsbMass != NULL);
+
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiUsbIoProtocolGuid,
+ (VOID **) &UsbIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "UsbMassInitNonLun: OpenUsbIoProtocol By Driver (%r)\n", Status));
+ goto ON_ERROR;
+ }
+
+ UsbMass->Signature = USB_MASS_SIGNATURE;
+ UsbMass->Controller = Controller;
+ UsbMass->UsbIo = UsbIo;
+ UsbMass->BlockIo.Media = &UsbMass->BlockIoMedia;
+ UsbMass->BlockIo.Reset = UsbMassReset;
+ UsbMass->BlockIo.ReadBlocks = UsbMassReadBlocks;
+ UsbMass->BlockIo.WriteBlocks = UsbMassWriteBlocks;
+ UsbMass->BlockIo.FlushBlocks = UsbMassFlushBlocks;
+ UsbMass->OpticalStorage = FALSE;
+ UsbMass->Transport = Transport;
+ UsbMass->Context = Context;
+
+ //
+ // Initialize the media parameter data for EFI_BLOCK_IO_MEDIA of Block I/O Protocol.
+ //
+ Status = UsbMassInitMedia (UsbMass);
+ if ((EFI_ERROR (Status)) && (Status != EFI_NO_MEDIA)) {
+ DEBUG ((EFI_D_ERROR, "UsbMassInitNonLun: UsbMassInitMedia (%r)\n", Status));
+ goto ON_ERROR;
+ }
+
+ InitializeDiskInfo (UsbMass);
+
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &Controller,
+ &gEfiBlockIoProtocolGuid,
+ &UsbMass->BlockIo,
+ &gEfiDiskInfoProtocolGuid,
+ &UsbMass->DiskInfo,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_ERROR;
+ }
+
+ return EFI_SUCCESS;
+
+ON_ERROR:
+ if (UsbMass != NULL) {
+ FreePool (UsbMass);
+ }
+ if (UsbIo != NULL) {
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiUsbIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ }
+ return Status;
+}
+
+
+/**
+ Check whether the controller is a supported USB mass storage.
+
+ @param This The USB mass storage driver binding protocol.
+ @param Controller The controller handle to check.
+ @param RemainingDevicePath The remaining device path.
+
+ @retval EFI_SUCCESS The driver supports this controller.
+ @retval other This device isn't supported.
+
+**/
+EFI_STATUS
+EFIAPI
+USBMassDriverBindingSupported (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ )
+{
+ EFI_USB_IO_PROTOCOL *UsbIo;
+ EFI_USB_INTERFACE_DESCRIPTOR Interface;
+ USB_MASS_TRANSPORT *Transport;
+ EFI_STATUS Status;
+ UINTN Index;
+
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiUsbIoProtocolGuid,
+ (VOID **) &UsbIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Get the interface descriptor to check the USB class and find a transport
+ // protocol handler.
+ //
+ Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &Interface);
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+
+ Status = EFI_UNSUPPORTED;
+
+ if (Interface.InterfaceClass != USB_MASS_STORE_CLASS) {
+ goto ON_EXIT;
+ }
+
+ //
+ // Traverse the USB_MASS_TRANSPORT arrary and try to find the
+ // matching transport method.
+ // If not found, return EFI_UNSUPPORTED.
+ // If found, execute USB_MASS_TRANSPORT.Init() to initialize the transport context.
+ //
+ for (Index = 0; Index < USB_MASS_TRANSPORT_COUNT; Index++) {
+ Transport = mUsbMassTransport[Index];
+ if (Interface.InterfaceProtocol == Transport->Protocol) {
+ Status = Transport->Init (UsbIo, NULL);
+ break;
+ }
+ }
+
+ON_EXIT:
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiUsbIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+
+ return Status;
+}
+
+/**
+ Starts the USB mass storage device with this driver.
+
+ This function consumes USB I/O Portocol, intializes USB mass storage device,
+ installs Block I/O Protocol, and submits Asynchronous Interrupt
+ Transfer to manage the USB mass storage device.
+
+ @param This The USB mass storage driver binding protocol.
+ @param Controller The USB mass storage device to start on
+ @param RemainingDevicePath The remaining device path.
+
+ @retval EFI_SUCCESS This driver supports this device.
+ @retval EFI_UNSUPPORTED This driver does not support this device.
+ @retval EFI_DEVICE_ERROR This driver cannot be started due to device Error.
+ @retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
+ @retval EFI_ALREADY_STARTED This driver has been started.
+
+**/
+EFI_STATUS
+EFIAPI
+USBMassDriverBindingStart (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ )
+{
+ USB_MASS_TRANSPORT *Transport;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ VOID *Context;
+ UINT8 MaxLun;
+ EFI_STATUS Status;
+ EFI_USB_IO_PROTOCOL *UsbIo;
+ EFI_TPL OldTpl;
+
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+
+ Transport = NULL;
+ Context = NULL;
+ MaxLun = 0;
+
+ Status = UsbMassInitTransport (This, Controller, &Transport, &Context, &MaxLun);
+
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "USBMassDriverBindingStart: UsbMassInitTransport (%r)\n", Status));
+ goto Exit;
+ }
+ if (MaxLun == 0) {
+ //
+ // Initialize data for device that does not support multiple LUNSs.
+ //
+ Status = UsbMassInitNonLun (This, Controller, Transport, Context);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "USBMassDriverBindingStart: UsbMassInitNonLun (%r)\n", Status));
+ }
+ } else {
+ //
+ // Open device path to prepare for appending Device Logic Unit node.
+ //
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiDevicePathProtocolGuid,
+ (VOID **) &DevicePath,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "USBMassDriverBindingStart: OpenDevicePathProtocol By Driver (%r)\n", Status));
+ goto Exit;
+ }
+
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiUsbIoProtocolGuid,
+ (VOID **) &UsbIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "USBMassDriverBindingStart: OpenUsbIoProtocol By Driver (%r)\n", Status));
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiDevicePathProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ goto Exit;
+ }
+
+ //
+ // Initialize data for device that supports multiple LUNs.
+ // EFI_SUCCESS is returned if at least 1 LUN is initialized successfully.
+ //
+ Status = UsbMassInitMultiLun (This, Controller, Transport, Context, DevicePath, MaxLun);
+ if (EFI_ERROR (Status)) {
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiDevicePathProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiUsbIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ DEBUG ((EFI_D_ERROR, "USBMassDriverBindingStart: UsbMassInitMultiLun (%r) with Maxlun=%d\n", Status, MaxLun));
+ }
+ }
+Exit:
+ gBS->RestoreTPL (OldTpl);
+ return Status;
+}
+
+
+/**
+ Stop controlling the device.
+
+ @param This The USB mass storage driver binding
+ @param Controller The device controller controlled by the driver.
+ @param NumberOfChildren The number of children of this device
+ @param ChildHandleBuffer The buffer of children handle.
+
+ @retval EFI_SUCCESS The driver stopped from controlling the device.
+ @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
+ @retval EFI_UNSUPPORTED Block I/O Protocol is not installed on Controller.
+ @retval Others Failed to stop the driver
+
+**/
+EFI_STATUS
+EFIAPI
+USBMassDriverBindingStop (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer
+ )
+{
+ EFI_STATUS Status;
+ USB_MASS_DEVICE *UsbMass;
+ EFI_USB_IO_PROTOCOL *UsbIo;
+ EFI_BLOCK_IO_PROTOCOL *BlockIo;
+ UINTN Index;
+ BOOLEAN AllChildrenStopped;
+
+ //
+ // This is a bus driver stop function since multi-lun is supported.
+ // There are three kinds of device handles that might be passed:
+ // 1st is a handle with USB I/O & Block I/O installed (non-multi-lun)
+ // 2nd is a handle with Device Path & USB I/O installed (multi-lun root)
+ // 3rd is a handle with Device Path & USB I/O & Block I/O installed (multi-lun).
+ //
+ if (NumberOfChildren == 0) {
+ //
+ // A handle without any children, might be 1st and 2nd type.
+ //
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiBlockIoProtocolGuid,
+ (VOID **) &BlockIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+
+ if (EFI_ERROR(Status)) {
+ //
+ // This is a 2nd type handle(multi-lun root), it needs to close devicepath
+ // and usbio protocol.
+ //
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiDevicePathProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiUsbIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ DEBUG ((EFI_D_INFO, "Success to stop multi-lun root handle\n"));
+ return EFI_SUCCESS;
+ }
+
+ //
+ // This is a 1st type handle(non-multi-lun), which only needs to uninstall
+ // Block I/O Protocol, close USB I/O Protocol and free mass device.
+ //
+ UsbMass = USB_MASS_DEVICE_FROM_BLOCK_IO (BlockIo);
+
+ //
+ // Uninstall Block I/O protocol from the device handle,
+ // then call the transport protocol to stop itself.
+ //
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ Controller,
+ &gEfiBlockIoProtocolGuid,
+ &UsbMass->BlockIo,
+ &gEfiDiskInfoProtocolGuid,
+ &UsbMass->DiskInfo,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiUsbIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+
+ UsbMass->Transport->CleanUp (UsbMass->Context);
+ FreePool (UsbMass);
+
+ DEBUG ((EFI_D_INFO, "Success to stop non-multi-lun root handle\n"));
+ return EFI_SUCCESS;
+ }
+
+ //
+ // This is a 3rd type handle(multi-lun), which needs uninstall
+ // Block I/O Protocol and Device Path Protocol, close USB I/O Protocol and
+ // free mass device for all children.
+ //
+ AllChildrenStopped = TRUE;
+
+ for (Index = 0; Index < NumberOfChildren; Index++) {
+
+ Status = gBS->OpenProtocol (
+ ChildHandleBuffer[Index],
+ &gEfiBlockIoProtocolGuid,
+ (VOID **) &BlockIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+ if (EFI_ERROR (Status)) {
+ AllChildrenStopped = FALSE;
+ DEBUG ((EFI_D_ERROR, "Fail to stop No.%d multi-lun child handle when opening blockio\n", (UINT32)Index));
+ continue;
+ }
+
+ UsbMass = USB_MASS_DEVICE_FROM_BLOCK_IO (BlockIo);
+
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiUsbIoProtocolGuid,
+ This->DriverBindingHandle,
+ ChildHandleBuffer[Index]
+ );
+
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ ChildHandleBuffer[Index],
+ &gEfiDevicePathProtocolGuid,
+ UsbMass->DevicePath,
+ &gEfiBlockIoProtocolGuid,
+ &UsbMass->BlockIo,
+ &gEfiDiskInfoProtocolGuid,
+ &UsbMass->DiskInfo,
+ NULL
+ );
+
+ if (EFI_ERROR (Status)) {
+ //
+ // Fail to uninstall Block I/O Protocol and Device Path Protocol, so re-open USB I/O Protocol by child.
+ //
+ AllChildrenStopped = FALSE;
+ DEBUG ((EFI_D_ERROR, "Fail to stop No.%d multi-lun child handle when uninstalling blockio and devicepath\n", (UINT32)Index));
+
+ gBS->OpenProtocol (
+ Controller,
+ &gEfiUsbIoProtocolGuid,
+ (VOID **) &UsbIo,
+ This->DriverBindingHandle,
+ ChildHandleBuffer[Index],
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+ );
+ } else {
+ //
+ // Succeed to stop this multi-lun handle, so go on with next child.
+ //
+ if (((Index + 1) == NumberOfChildren) && AllChildrenStopped) {
+ UsbMass->Transport->CleanUp (UsbMass->Context);
+ }
+ FreePool (UsbMass);
+ }
+ }
+
+ if (!AllChildrenStopped) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ DEBUG ((EFI_D_INFO, "Success to stop all %d multi-lun children handles\n", (UINT32) NumberOfChildren));
+ return EFI_SUCCESS;
+}
+
+/**
+ Entrypoint of USB Mass Storage Driver.
+
+ This function is the entrypoint of USB Mass Storage Driver. It installs Driver Binding
+ Protocol together with Component Name Protocols.
+
+ @param ImageHandle The firmware allocated handle for the EFI image.
+ @param SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The entry point is executed successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+USBMassStorageEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // Install driver binding protocol
+ //
+ Status = EfiLibInstallDriverBindingComponentName2 (
+ ImageHandle,
+ SystemTable,
+ &gUSBMassDriverBinding,
+ ImageHandle,
+ &gUsbMassStorageComponentName,
+ &gUsbMassStorageComponentName2
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return EFI_SUCCESS;
+}
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.h b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.h
new file mode 100644
index 0000000000..0f013c1ad7
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.h
@@ -0,0 +1,333 @@
+/** @file
+ Definitions of functions for Driver Binding Protocol and Block I/O Protocol,
+ and other internal definitions.
+
+Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _EFI_USBMASS_IMPL_H_
+#define _EFI_USBMASS_IMPL_H_
+
+#define USB_MASS_SIGNATURE SIGNATURE_32 ('U', 's', 'b', 'M')
+
+#define USB_MASS_DEVICE_FROM_BLOCK_IO(a) \
+ CR (a, USB_MASS_DEVICE, BlockIo, USB_MASS_SIGNATURE)
+
+#define USB_MASS_DEVICE_FROM_DISK_INFO(a) \
+ CR (a, USB_MASS_DEVICE, DiskInfo, USB_MASS_SIGNATURE)
+
+
+extern EFI_COMPONENT_NAME_PROTOCOL gUsbMassStorageComponentName;
+extern EFI_COMPONENT_NAME2_PROTOCOL gUsbMassStorageComponentName2;
+
+//
+// Functions for Driver Binding Protocol
+//
+
+/**
+ Check whether the controller is a supported USB mass storage.
+
+ @param This The USB mass storage driver binding protocol.
+ @param Controller The controller handle to check.
+ @param RemainingDevicePath The remaining device path.
+
+ @retval EFI_SUCCESS The driver supports this controller.
+ @retval other This device isn't supported.
+
+**/
+EFI_STATUS
+EFIAPI
+USBMassDriverBindingSupported (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ );
+
+/**
+ Starts the USB mass storage device with this driver.
+
+ This function consumes USB I/O Portocol, intializes USB mass storage device,
+ installs Block I/O Protocol, and submits Asynchronous Interrupt
+ Transfer to manage the USB mass storage device.
+
+ @param This The USB mass storage driver binding protocol.
+ @param Controller The USB mass storage device to start on
+ @param RemainingDevicePath The remaining device path.
+
+ @retval EFI_SUCCESS This driver supports this device.
+ @retval EFI_UNSUPPORTED This driver does not support this device.
+ @retval EFI_DEVICE_ERROR This driver cannot be started due to device Error.
+ @retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
+ @retval EFI_ALREADY_STARTED This driver has been started.
+
+**/
+EFI_STATUS
+EFIAPI
+USBMassDriverBindingStart (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ );
+
+/**
+ Stop controlling the device.
+
+ @param This The USB mass storage driver binding
+ @param Controller The device controller controlled by the driver.
+ @param NumberOfChildren The number of children of this device
+ @param ChildHandleBuffer The buffer of children handle.
+
+ @retval EFI_SUCCESS The driver stopped from controlling the device.
+ @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
+ @retval EFI_UNSUPPORTED Block I/O Protocol is not installed on Controller.
+ @retval Others Failed to stop the driver
+
+**/
+EFI_STATUS
+EFIAPI
+USBMassDriverBindingStop (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer
+ );
+
+//
+// Functions for Block I/O Protocol
+//
+
+/**
+ Reset the block device.
+
+ This function implements EFI_BLOCK_IO_PROTOCOL.Reset().
+ It resets the block device hardware.
+ ExtendedVerification is ignored in this implementation.
+
+ @param This Indicates a pointer to the calling context.
+ @param ExtendedVerification Indicates that the driver may perform a more exhaustive
+ verification operation of the device during reset.
+
+ @retval EFI_SUCCESS The block device was reset.
+ @retval EFI_DEVICE_ERROR The block device is not functioning correctly and could not be reset.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassReset (
+ IN EFI_BLOCK_IO_PROTOCOL *This,
+ IN BOOLEAN ExtendedVerification
+ );
+
+/**
+ Reads the requested number of blocks from the device.
+
+ This function implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks().
+ It reads the requested number of blocks from the device.
+ All the blocks are read, or an error is returned.
+
+ @param This Indicates a pointer to the calling context.
+ @param MediaId The media ID that the read request is for.
+ @param Lba The starting logical block address to read from on the device.
+ @param BufferSize The size of the Buffer in bytes.
+ This must be a multiple of the intrinsic block size of the device.
+ @param Buffer A pointer to the destination buffer for the data. The caller is
+ responsible for either having implicit or explicit ownership of the buffer.
+
+ @retval EFI_SUCCESS The data was read correctly from the device.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the read operation.
+ @retval EFI_NO_MEDIA There is no media in the device.
+ @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic block size of the device.
+ @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
+ or the buffer is not on proper alignment.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassReadBlocks (
+ IN EFI_BLOCK_IO_PROTOCOL *This,
+ IN UINT32 MediaId,
+ IN EFI_LBA Lba,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
+ );
+
+/**
+ Writes a specified number of blocks to the device.
+
+ This function implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks().
+ It writes a specified number of blocks to the device.
+ All blocks are written, or an error is returned.
+
+ @param This Indicates a pointer to the calling context.
+ @param MediaId The media ID that the write request is for.
+ @param Lba The starting logical block address to be written.
+ @param BufferSize The size of the Buffer in bytes.
+ This must be a multiple of the intrinsic block size of the device.
+ @param Buffer Pointer to the source buffer for the data.
+
+ @retval EFI_SUCCESS The data were written correctly to the device.
+ @retval EFI_WRITE_PROTECTED The device cannot be written to.
+ @retval EFI_NO_MEDIA There is no media in the device.
+ @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the write operation.
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic
+ block size of the device.
+ @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
+ or the buffer is not on proper alignment.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassWriteBlocks (
+ IN EFI_BLOCK_IO_PROTOCOL *This,
+ IN UINT32 MediaId,
+ IN EFI_LBA Lba,
+ IN UINTN BufferSize,
+ IN VOID *Buffer
+ );
+
+/**
+ Flushes all modified data to a physical block device.
+
+ This function implements EFI_BLOCK_IO_PROTOCOL.FlushBlocks().
+ USB mass storage device doesn't support write cache,
+ so return EFI_SUCCESS directly.
+
+ @param This Indicates a pointer to the calling context.
+
+ @retval EFI_SUCCESS All outstanding data were written correctly to the device.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting to write data.
+ @retval EFI_NO_MEDIA There is no media in the device.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassFlushBlocks (
+ IN EFI_BLOCK_IO_PROTOCOL *This
+ );
+
+//
+// EFI Component Name Functions
+//
+
+/**
+ Retrieves a Unicode string that is the user readable name of the driver.
+
+ This function retrieves the user readable name of a driver in the form of a
+ Unicode string. If the driver specified by This has a user readable name in
+ the language specified by Language, then a pointer to the driver name is
+ returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
+ by This does not support the language specified by Language,
+ then EFI_UNSUPPORTED is returned.
+
+ @param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+ EFI_COMPONENT_NAME_PROTOCOL instance.
+ @param Language A pointer to a Null-terminated ASCII string
+ array indicating the language. This is the
+ language of the driver name that the caller is
+ requesting, and it must match one of the
+ languages specified in SupportedLanguages. The
+ number of languages supported by a driver is up
+ to the driver writer. Language is specified
+ in RFC 4646 or ISO 639-2 language code format.
+ @param DriverName A pointer to the Unicode string to return.
+ This Unicode string is the name of the
+ driver specified by This in the language
+ specified by Language.
+
+ @retval EFI_SUCCESS The Unicode string for the Driver specified by
+ This and the language specified by Language was
+ returned in DriverName.
+ @retval EFI_INVALID_PARAMETER Language is NULL.
+ @retval EFI_INVALID_PARAMETER DriverName is NULL.
+ @retval EFI_UNSUPPORTED The driver specified by This does not support
+ the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassStorageGetDriverName (
+ IN EFI_COMPONENT_NAME_PROTOCOL *This,
+ IN CHAR8 *Language,
+ OUT CHAR16 **DriverName
+ );
+
+
+/**
+ Retrieves a Unicode string that is the user readable name of the controller
+ that is being managed by a driver.
+
+ This function retrieves the user readable name of the controller specified by
+ ControllerHandle and ChildHandle in the form of a Unicode string. If the
+ driver specified by This has a user readable name in the language specified by
+ Language, then a pointer to the controller name is returned in ControllerName,
+ and EFI_SUCCESS is returned. If the driver specified by This is not currently
+ managing the controller specified by ControllerHandle and ChildHandle,
+ then EFI_UNSUPPORTED is returned. If the driver specified by This does not
+ support the language specified by Language, then EFI_UNSUPPORTED is returned.
+
+ @param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+ EFI_COMPONENT_NAME_PROTOCOL instance.
+ @param ControllerHandle The handle of a controller that the driver
+ specified by This is managing. This handle
+ specifies the controller whose name is to be
+ returned.
+ @param ChildHandle The handle of the child controller to retrieve
+ the name of. This is an optional parameter that
+ may be NULL. It will be NULL for device
+ drivers. It will also be NULL for a bus drivers
+ that wish to retrieve the name of the bus
+ controller. It will not be NULL for a bus
+ driver that wishes to retrieve the name of a
+ child controller.
+ @param Language A pointer to a Null-terminated ASCII string
+ array indicating the language. This is the
+ language of the driver name that the caller is
+ requesting, and it must match one of the
+ languages specified in SupportedLanguages. The
+ number of languages supported by a driver is up
+ to the driver writer. Language is specified in
+ RFC 4646 or ISO 639-2 language code format.
+ @param ControllerName A pointer to the Unicode string to return.
+ This Unicode string is the name of the
+ controller specified by ControllerHandle and
+ ChildHandle in the language specified by
+ Language from the point of view of the driver
+ specified by This.
+
+ @retval EFI_SUCCESS The Unicode string for the user readable name in
+ the language specified by Language for the
+ driver specified by This was returned in
+ DriverName.
+ @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
+ @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
+ EFI_HANDLE.
+ @retval EFI_INVALID_PARAMETER Language is NULL.
+ @retval EFI_INVALID_PARAMETER ControllerName is NULL.
+ @retval EFI_UNSUPPORTED The driver specified by This is not currently
+ managing the controller specified by
+ ControllerHandle and ChildHandle.
+ @retval EFI_UNSUPPORTED The driver specified by This does not support
+ the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassStorageGetControllerName (
+ IN EFI_COMPONENT_NAME_PROTOCOL *This,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_HANDLE ChildHandle OPTIONAL,
+ IN CHAR8 *Language,
+ OUT CHAR16 **ControllerName
+ );
+
+#endif
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageDxe.inf b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageDxe.inf
new file mode 100644
index 0000000000..26d15c7679
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageDxe.inf
@@ -0,0 +1,87 @@
+## @file
+# USB Mass Storage Driver that manages USB mass storage devices and produces Block I/O Protocol.
+#
+# The USB mass storage class is specified in two layers: the bottom layer
+# is the transportation protocol. The top layer is the command set.
+# The transportation layer provides the transportation of the command, data and result.
+# The command set defines the command, data and result.
+# The Bulk-Only-Transport and Control/Bulk/Interrupt transport are two transportation protocol.
+# USB mass storage class adopts various industrial standard as its command set.
+# This module refers to following specifications:
+# 1. USB Mass Storage Specification for Bootability, Revision 1.0
+# 2. USB Mass Storage Class Control/Bulk/Interrupt (CBI) Transport, Revision 1.1
+# 3. USB Mass Storage Class Bulk-Only Transport, Revision 1.0.
+# 4. UEFI Specification, v2.1
+#
+# Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
+#
+# This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = UsbMassStorageDxe
+ MODULE_UNI_FILE = UsbMassStorageDxe.uni
+ FILE_GUID = 9FB4B4A7-42C0-4bcd-8540-9BCC6711F83E
+ MODULE_TYPE = UEFI_DRIVER
+ VERSION_STRING = 1.0
+ ENTRY_POINT = USBMassStorageEntryPoint
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC
+#
+# DRIVER_BINDING = gUSBMassDriverBinding
+# COMPONENT_NAME = gUsbMassStorageComponentName
+# COMPONENT_NAME2 = gUsbMassStorageComponentName2
+#
+
+[Sources]
+ UsbMassBoot.h
+ UsbMassImpl.h
+ UsbMassBot.h
+ UsbMassBot.c
+ ComponentName.c
+ UsbMassImpl.c
+ UsbMassBoot.c
+ UsbMassCbi.h
+ UsbMass.h
+ UsbMassCbi.c
+ UsbMassDiskInfo.h
+ UsbMassDiskInfo.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ BaseLib
+ MemoryAllocationLib
+ UefiLib
+ UefiBootServicesTableLib
+ UefiDriverEntryPoint
+ BaseMemoryLib
+ DebugLib
+ DevicePathLib
+
+
+[Protocols]
+ gEfiUsbIoProtocolGuid ## TO_START
+ gEfiDevicePathProtocolGuid ## TO_START
+ gEfiBlockIoProtocolGuid ## BY_START
+ gEfiDiskInfoProtocolGuid ## BY_START
+
+# [Event]
+# EVENT_TYPE_RELATIVE_TIMER ## CONSUMES
+#
+
+[UserExtensions.TianoCore."ExtraFiles"]
+ UsbMassStorageDxeExtra.uni
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageDxe.uni b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageDxe.uni
new file mode 100644
index 0000000000..77cf18cd97
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageDxe.uni
Binary files differ
diff --git a/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageDxeExtra.uni b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageDxeExtra.uni
new file mode 100644
index 0000000000..7603d47e39
--- /dev/null
+++ b/Core/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageDxeExtra.uni
Binary files differ