diff options
author | Guo Mang <mang.guo@intel.com> | 2016-12-22 15:57:14 +0800 |
---|---|---|
committer | Guo Mang <mang.guo@intel.com> | 2016-12-26 19:14:41 +0800 |
commit | 1760cf81e4b1847c6823ea3514a78dd120e19b6e (patch) | |
tree | 64a874b14050fe24d3bbc1bc13cd293abf8ae018 /Core/MdePkg/Include/Protocol/UsbIo.h | |
parent | 7f05fa00f73038b425002566d3afe6c3ade2ccdb (diff) | |
download | edk2-platforms-1760cf81e4b1847c6823ea3514a78dd120e19b6e.tar.xz |
MdePkg: Move to new location
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'Core/MdePkg/Include/Protocol/UsbIo.h')
-rw-r--r-- | Core/MdePkg/Include/Protocol/UsbIo.h | 512 |
1 files changed, 512 insertions, 0 deletions
diff --git a/Core/MdePkg/Include/Protocol/UsbIo.h b/Core/MdePkg/Include/Protocol/UsbIo.h new file mode 100644 index 0000000000..227d286203 --- /dev/null +++ b/Core/MdePkg/Include/Protocol/UsbIo.h @@ -0,0 +1,512 @@ +/** @file
+ EFI Usb I/O Protocol as defined in UEFI specification.
+ This protocol is used by code, typically drivers, running in the EFI
+ boot services environment to access USB devices like USB keyboards,
+ mice and mass storage devices. In particular, functions for managing devices
+ on USB buses are defined here.
+
+ Copyright (c) 2006 - 2008, 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 __USB_IO_H__
+#define __USB_IO_H__
+
+#include <IndustryStandard/Usb.h>
+
+//
+// Global ID for the USB I/O Protocol
+//
+#define EFI_USB_IO_PROTOCOL_GUID \
+ { \
+ 0x2B2F68D6, 0x0CD2, 0x44cf, {0x8E, 0x8B, 0xBB, 0xA2, 0x0B, 0x1B, 0x5B, 0x75 } \
+ }
+
+typedef struct _EFI_USB_IO_PROTOCOL EFI_USB_IO_PROTOCOL;
+
+//
+// Related Definition for EFI USB I/O protocol
+//
+
+//
+// USB standard descriptors and reqeust
+//
+typedef USB_DEVICE_REQUEST EFI_USB_DEVICE_REQUEST;
+typedef USB_DEVICE_DESCRIPTOR EFI_USB_DEVICE_DESCRIPTOR;
+typedef USB_CONFIG_DESCRIPTOR EFI_USB_CONFIG_DESCRIPTOR;
+typedef USB_INTERFACE_DESCRIPTOR EFI_USB_INTERFACE_DESCRIPTOR;
+typedef USB_ENDPOINT_DESCRIPTOR EFI_USB_ENDPOINT_DESCRIPTOR;
+
+///
+/// USB data transfer direction
+///
+typedef enum {
+ EfiUsbDataIn,
+ EfiUsbDataOut,
+ EfiUsbNoData
+} EFI_USB_DATA_DIRECTION;
+
+//
+// USB Transfer Results
+//
+#define EFI_USB_NOERROR 0x00
+#define EFI_USB_ERR_NOTEXECUTE 0x01
+#define EFI_USB_ERR_STALL 0x02
+#define EFI_USB_ERR_BUFFER 0x04
+#define EFI_USB_ERR_BABBLE 0x08
+#define EFI_USB_ERR_NAK 0x10
+#define EFI_USB_ERR_CRC 0x20
+#define EFI_USB_ERR_TIMEOUT 0x40
+#define EFI_USB_ERR_BITSTUFF 0x80
+#define EFI_USB_ERR_SYSTEM 0x100
+
+/**
+ Async USB transfer callback routine.
+
+ @param Data Data received or sent via the USB Asynchronous Transfer, if the
+ transfer completed successfully.
+ @param DataLength The length of Data received or sent via the Asynchronous
+ Transfer, if transfer successfully completes.
+ @param Context Data passed from UsbAsyncInterruptTransfer() request.
+ @param Status Indicates the result of the asynchronous transfer.
+
+ @retval EFI_SUCCESS The asynchronous USB transfer request has been successfully executed.
+ @retval EFI_DEVICE_ERROR The asynchronous USB transfer request failed.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_ASYNC_USB_TRANSFER_CALLBACK)(
+ IN VOID *Data,
+ IN UINTN DataLength,
+ IN VOID *Context,
+ IN UINT32 Status
+ );
+
+//
+// Prototype for EFI USB I/O protocol
+//
+
+
+/**
+ This function is used to manage a USB device with a control transfer pipe. A control transfer is
+ typically used to perform device initialization and configuration.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+ @param Request A pointer to the USB device request that will be sent to the USB
+ device.
+ @param Direction Indicates the data direction.
+ @param Timeout Indicating the transfer should be completed within this time frame.
+ The units are in milliseconds.
+ @param Data A pointer to the buffer of data that will be transmitted to USB
+ device or received from USB device.
+ @param DataLength The size, in bytes, of the data buffer specified by Data.
+ @param Status A pointer to the result of the USB transfer.
+
+ @retval EFI_SUCCESS The control transfer has been successfully executed.
+ @retval EFI_DEVICE_ERROR The transfer failed. The transfer status is returned in Status.
+ @retval EFI_INVALID_PARAMETE One or more parameters are invalid.
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
+ @retval EFI_TIMEOUT The control transfer fails due to timeout.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_USB_IO_CONTROL_TRANSFER)(
+ IN EFI_USB_IO_PROTOCOL *This,
+ IN EFI_USB_DEVICE_REQUEST *Request,
+ IN EFI_USB_DATA_DIRECTION Direction,
+ IN UINT32 Timeout,
+ IN OUT VOID *Data OPTIONAL,
+ IN UINTN DataLength OPTIONAL,
+ OUT UINT32 *Status
+ );
+
+/**
+ This function is used to manage a USB device with the bulk transfer pipe. Bulk Transfers are
+ typically used to transfer large amounts of data to/from USB devices.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+ @param DeviceEndpoint The destination USB device endpoint to which the
+ device request is being sent. DeviceEndpoint must
+ be between 0x01 and 0x0F or between 0x81 and 0x8F,
+ otherwise EFI_INVALID_PARAMETER is returned. If
+ the endpoint is not a BULK endpoint, EFI_INVALID_PARAMETER
+ is returned. The MSB of this parameter indicates
+ the endpoint direction. The number "1" stands for
+ an IN endpoint, and "0" stands for an OUT endpoint.
+ @param Data A pointer to the buffer of data that will be transmitted to USB
+ device or received from USB device.
+ @param DataLength The size, in bytes, of the data buffer specified by Data.
+ On input, the size, in bytes, of the data buffer specified by Data.
+ On output, the number of bytes that were actually transferred.
+ @param Timeout Indicating the transfer should be completed within this time frame.
+ The units are in milliseconds. If Timeout is 0, then the
+ caller must wait for the function to be completed until
+ EFI_SUCCESS or EFI_DEVICE_ERROR is returned.
+ @param Status This parameter indicates the USB transfer status.
+
+ @retval EFI_SUCCESS The bulk transfer has been successfully executed.
+ @retval EFI_DEVICE_ERROR The transfer failed. The transfer status is returned in Status.
+ @retval EFI_INVALID_PARAMETE One or more parameters are invalid.
+ @retval EFI_OUT_OF_RESOURCES The request could not be submitted due to a lack of resources.
+ @retval EFI_TIMEOUT The control transfer fails due to timeout.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_USB_IO_BULK_TRANSFER)(
+ IN EFI_USB_IO_PROTOCOL *This,
+ IN UINT8 DeviceEndpoint,
+ IN OUT VOID *Data,
+ IN OUT UINTN *DataLength,
+ IN UINTN Timeout,
+ OUT UINT32 *Status
+ );
+
+/**
+ This function is used to manage a USB device with an interrupt transfer pipe. An Asynchronous
+ Interrupt Transfer is typically used to query a device's status at a fixed rate. For example,
+ keyboard, mouse, and hub devices use this type of transfer to query their interrupt endpoints at
+ a fixed rate.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+ @param DeviceEndpoint The destination USB device endpoint to which the
+ device request is being sent. DeviceEndpoint must
+ be between 0x01 and 0x0F or between 0x81 and 0x8F,
+ otherwise EFI_INVALID_PARAMETER is returned. If
+ the endpoint is not a BULK endpoint, EFI_INVALID_PARAMETER
+ is returned. The MSB of this parameter indicates
+ the endpoint direction. The number "1" stands for
+ an IN endpoint, and "0" stands for an OUT endpoint.
+ @param IsNewTransfer If TRUE, a new transfer will be submitted to USB controller. If
+ FALSE, the interrupt transfer is deleted from the device's interrupt
+ transfer queue.
+ @param PollingInterval Indicates the periodic rate, in milliseconds, that the transfer is to be
+ executed.This parameter is required when IsNewTransfer is TRUE. The
+ value must be between 1 to 255, otherwise EFI_INVALID_PARAMETER is returned.
+ The units are in milliseconds.
+ @param DataLength Specifies the length, in bytes, of the data to be received from the
+ USB device. This parameter is only required when IsNewTransfer is TRUE.
+ @param InterruptCallback The Callback function. This function is called if the asynchronous
+ interrupt transfer is completed. This parameter is required
+ when IsNewTransfer is TRUE.
+ @param Context Data passed to the InterruptCallback function. This is an optional
+ parameter and may be NULL.
+
+ @retval EFI_SUCCESS The asynchronous USB transfer request transfer has been successfully executed.
+ @retval EFI_DEVICE_ERROR The asynchronous USB transfer request failed.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_USB_IO_ASYNC_INTERRUPT_TRANSFER)(
+ IN EFI_USB_IO_PROTOCOL *This,
+ IN UINT8 DeviceEndpoint,
+ IN BOOLEAN IsNewTransfer,
+ IN UINTN PollingInterval OPTIONAL,
+ IN UINTN DataLength OPTIONAL,
+ IN EFI_ASYNC_USB_TRANSFER_CALLBACK InterruptCallBack OPTIONAL,
+ IN VOID *Context OPTIONAL
+ );
+
+/**
+ This function is used to manage a USB device with an interrupt transfer pipe.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+ @param DeviceEndpoint The destination USB device endpoint to which the
+ device request is being sent. DeviceEndpoint must
+ be between 0x01 and 0x0F or between 0x81 and 0x8F,
+ otherwise EFI_INVALID_PARAMETER is returned. If
+ the endpoint is not a BULK endpoint, EFI_INVALID_PARAMETER
+ is returned. The MSB of this parameter indicates
+ the endpoint direction. The number "1" stands for
+ an IN endpoint, and "0" stands for an OUT endpoint.
+ @param Data A pointer to the buffer of data that will be transmitted to USB
+ device or received from USB device.
+ @param DataLength On input, then size, in bytes, of the buffer Data. On output, the
+ amount of data actually transferred.
+ @param Timeout The time out, in seconds, for this transfer. If Timeout is 0,
+ then the caller must wait for the function to be completed
+ until EFI_SUCCESS or EFI_DEVICE_ERROR is returned. If the
+ transfer is not completed in this time frame, then EFI_TIMEOUT is returned.
+ @param Status This parameter indicates the USB transfer status.
+
+ @retval EFI_SUCCESS The sync interrupt transfer has been successfully executed.
+ @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
+ @retval EFI_DEVICE_ERROR The sync interrupt transfer request failed.
+ @retval EFI_OUT_OF_RESOURCES The request could not be submitted due to a lack of resources.
+ @retval EFI_TIMEOUT The transfer fails due to timeout.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_USB_IO_SYNC_INTERRUPT_TRANSFER)(
+ IN EFI_USB_IO_PROTOCOL *This,
+ IN UINT8 DeviceEndpoint,
+ IN OUT VOID *Data,
+ IN OUT UINTN *DataLength,
+ IN UINTN Timeout,
+ OUT UINT32 *Status
+ );
+
+/**
+ This function is used to manage a USB device with an isochronous transfer pipe. An Isochronous
+ transfer is typically used to transfer streaming data.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+ @param DeviceEndpoint The destination USB device endpoint to which the
+ device request is being sent. DeviceEndpoint must
+ be between 0x01 and 0x0F or between 0x81 and 0x8F,
+ otherwise EFI_INVALID_PARAMETER is returned. If
+ the endpoint is not a BULK endpoint, EFI_INVALID_PARAMETER
+ is returned. The MSB of this parameter indicates
+ the endpoint direction. The number "1" stands for
+ an IN endpoint, and "0" stands for an OUT endpoint.
+ @param Data A pointer to the buffer of data that will be transmitted to USB
+ device or received from USB device.
+ @param DataLength The size, in bytes, of the data buffer specified by Data.
+ @param Status This parameter indicates the USB transfer status.
+
+ @retval EFI_SUCCESS The isochronous transfer has been successfully executed.
+ @retval EFI_INVALID_PARAMETER The parameter DeviceEndpoint is not valid.
+ @retval EFI_DEVICE_ERROR The transfer failed due to the reason other than timeout, The error status
+ is returned in Status.
+ @retval EFI_OUT_OF_RESOURCES The request could not be submitted due to a lack of resources.
+ @retval EFI_TIMEOUT The transfer fails due to timeout.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_USB_IO_ISOCHRONOUS_TRANSFER)(
+ IN EFI_USB_IO_PROTOCOL *This,
+ IN UINT8 DeviceEndpoint,
+ IN OUT VOID *Data,
+ IN UINTN DataLength,
+ OUT UINT32 *Status
+ );
+
+/**
+ This function is used to manage a USB device with an isochronous transfer pipe. An Isochronous
+ transfer is typically used to transfer streaming data.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+ @param DeviceEndpoint The destination USB device endpoint to which the
+ device request is being sent. DeviceEndpoint must
+ be between 0x01 and 0x0F or between 0x81 and 0x8F,
+ otherwise EFI_INVALID_PARAMETER is returned. If
+ the endpoint is not a BULK endpoint, EFI_INVALID_PARAMETER
+ is returned. The MSB of this parameter indicates
+ the endpoint direction. The number "1" stands for
+ an IN endpoint, and "0" stands for an OUT endpoint.
+ @param Data A pointer to the buffer of data that will be transmitted to USB
+ device or received from USB device.
+ @param DataLength The size, in bytes, of the data buffer specified by Data.
+ This is an optional parameter and may be NULL.
+ @param IsochronousCallback The IsochronousCallback() function.This function is
+ called if the requested isochronous transfer is completed.
+ @param Context Data passed to the IsochronousCallback() function.
+
+ @retval EFI_SUCCESS The asynchronous isochronous transfer has been successfully submitted
+ to the system.
+ @retval EFI_INVALID_PARAMETER The parameter DeviceEndpoint is not valid.
+ @retval EFI_OUT_OF_RESOURCES The request could not be submitted due to a lack of resources.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_USB_IO_ASYNC_ISOCHRONOUS_TRANSFER)(
+ IN EFI_USB_IO_PROTOCOL *This,
+ IN UINT8 DeviceEndpoint,
+ IN OUT VOID *Data,
+ IN UINTN DataLength,
+ IN EFI_ASYNC_USB_TRANSFER_CALLBACK IsochronousCallBack,
+ IN VOID *Context OPTIONAL
+ );
+
+/**
+ Resets and reconfigures the USB controller. This function will work for all USB devices except
+ USB Hub Controllers.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+
+ @retval EFI_SUCCESS The USB controller was reset.
+ @retval EFI_INVALID_PARAMETER If the controller specified by This is a USB hub.
+ @retval EFI_DEVICE_ERROR An error occurred during the reconfiguration process.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_USB_IO_PORT_RESET)(
+ IN EFI_USB_IO_PROTOCOL *This
+ );
+
+/**
+ Retrieves the USB Device Descriptor.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+ @param DeviceDescriptor A pointer to the caller allocated USB Device Descriptor.
+
+ @retval EFI_SUCCESS The device descriptor was retrieved successfully.
+ @retval EFI_INVALID_PARAMETER DeviceDescriptor is NULL.
+ @retval EFI_NOT_FOUND The device descriptor was not found. The device may not be configured.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_USB_IO_GET_DEVICE_DESCRIPTOR)(
+ IN EFI_USB_IO_PROTOCOL *This,
+ OUT EFI_USB_DEVICE_DESCRIPTOR *DeviceDescriptor
+ );
+
+/**
+ Retrieves the USB Device Descriptor.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+ @param ConfigurationDescriptor A pointer to the caller allocated USB Active Configuration
+ Descriptor.
+ @retval EFI_SUCCESS The active configuration descriptor was retrieved successfully.
+ @retval EFI_INVALID_PARAMETER ConfigurationDescriptor is NULL.
+ @retval EFI_NOT_FOUND An active configuration descriptor cannot be found. The device may not
+ be configured.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_USB_IO_GET_CONFIG_DESCRIPTOR)(
+ IN EFI_USB_IO_PROTOCOL *This,
+ OUT EFI_USB_CONFIG_DESCRIPTOR *ConfigurationDescriptor
+ );
+
+/**
+ Retrieves the Interface Descriptor for a USB Device Controller. As stated earlier, an interface
+ within a USB device is equivalently to a USB Controller within the current configuration.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+ @param InterfaceDescriptor A pointer to the caller allocated USB Interface Descriptor within
+ the configuration setting.
+ @retval EFI_SUCCESS The interface descriptor retrieved successfully.
+ @retval EFI_INVALID_PARAMETER InterfaceDescriptor is NULL.
+ @retval EFI_NOT_FOUND The interface descriptor cannot be found. The device may not be
+ correctly configured.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_USB_IO_GET_INTERFACE_DESCRIPTOR)(
+ IN EFI_USB_IO_PROTOCOL *This,
+ OUT EFI_USB_INTERFACE_DESCRIPTOR *InterfaceDescriptor
+ );
+
+/**
+ Retrieves an Endpoint Descriptor within a USB Controller.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+ @param EndpointIndex Indicates which endpoint descriptor to retrieve.
+ @param EndpointDescriptor A pointer to the caller allocated USB Endpoint Descriptor of
+ a USB controller.
+
+ @retval EFI_SUCCESS The endpoint descriptor was retrieved successfully.
+ @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
+ @retval EFI_NOT_FOUND The endpoint descriptor cannot be found. The device may not be
+ correctly configured.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_USB_IO_GET_ENDPOINT_DESCRIPTOR)(
+ IN EFI_USB_IO_PROTOCOL *This,
+ IN UINT8 EndpointIndex,
+ OUT EFI_USB_ENDPOINT_DESCRIPTOR *EndpointDescriptor
+ );
+
+/**
+ Retrieves a string stored in a USB Device.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+ @param LangID The Language ID for the string being retrieved.
+ @param StringID The ID of the string being retrieved.
+ @param String A pointer to a buffer allocated by this function with
+ AllocatePool() to store the string.If this function
+ returns EFI_SUCCESS, it stores the string the caller
+ wants to get. The caller should release the string
+ buffer with FreePool() after the string is not used any more.
+
+ @retval EFI_SUCCESS The string was retrieved successfully.
+ @retval EFI_NOT_FOUND The string specified by LangID and StringID was not found.
+ @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate the return buffer String.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_USB_IO_GET_STRING_DESCRIPTOR)(
+ IN EFI_USB_IO_PROTOCOL *This,
+ IN UINT16 LangID,
+ IN UINT8 StringID,
+ OUT CHAR16 **String
+ );
+
+/**
+ Retrieves all the language ID codes that the USB device supports.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+ @param LangIDTable Language ID for the string the caller wants to get.
+ This is a 16-bit ID defined by Microsoft. This
+ buffer pointer is allocated and maintained by
+ the USB Bus Driver, the caller should not modify
+ its contents.
+ @param TableSize The size, in bytes, of the table LangIDTable.
+
+ @retval EFI_SUCCESS The support languages were retrieved successfully.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_USB_IO_GET_SUPPORTED_LANGUAGE)(
+ IN EFI_USB_IO_PROTOCOL *This,
+ OUT UINT16 **LangIDTable,
+ OUT UINT16 *TableSize
+ );
+
+///
+/// The EFI_USB_IO_PROTOCOL provides four basic transfers types described
+/// in the USB 1.1 Specification. These include control transfer, interrupt
+/// transfer, bulk transfer and isochronous transfer. The EFI_USB_IO_PROTOCOL
+/// also provides some basic USB device/controller management and configuration
+/// interfaces. A USB device driver uses the services of this protocol to manage USB devices.
+///
+struct _EFI_USB_IO_PROTOCOL {
+ //
+ // IO transfer
+ //
+ EFI_USB_IO_CONTROL_TRANSFER UsbControlTransfer;
+ EFI_USB_IO_BULK_TRANSFER UsbBulkTransfer;
+ EFI_USB_IO_ASYNC_INTERRUPT_TRANSFER UsbAsyncInterruptTransfer;
+ EFI_USB_IO_SYNC_INTERRUPT_TRANSFER UsbSyncInterruptTransfer;
+ EFI_USB_IO_ISOCHRONOUS_TRANSFER UsbIsochronousTransfer;
+ EFI_USB_IO_ASYNC_ISOCHRONOUS_TRANSFER UsbAsyncIsochronousTransfer;
+
+ //
+ // Common device request
+ //
+ EFI_USB_IO_GET_DEVICE_DESCRIPTOR UsbGetDeviceDescriptor;
+ EFI_USB_IO_GET_CONFIG_DESCRIPTOR UsbGetConfigDescriptor;
+ EFI_USB_IO_GET_INTERFACE_DESCRIPTOR UsbGetInterfaceDescriptor;
+ EFI_USB_IO_GET_ENDPOINT_DESCRIPTOR UsbGetEndpointDescriptor;
+ EFI_USB_IO_GET_STRING_DESCRIPTOR UsbGetStringDescriptor;
+ EFI_USB_IO_GET_SUPPORTED_LANGUAGE UsbGetSupportedLanguages;
+
+ //
+ // Reset controller's parent port
+ //
+ EFI_USB_IO_PORT_RESET UsbPortReset;
+};
+
+extern EFI_GUID gEfiUsbIoProtocolGuid;
+
+#endif
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