/** @file
EFI_USB2_HC_PROTOCOL as defined in UEFI 2.0.
The USB Host Controller Protocol is used by code, typically USB bus drivers,
running in the EFI boot services environment, to perform data transactions over
a USB bus. In addition, it provides an abstraction for the root hub of the USB bus.
Copyright (c) 2006 - 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.
**/
#ifndef _USB2_HOSTCONTROLLER_H_
#define _USB2_HOSTCONTROLLER_H_
#include <Protocol/UsbIo.h>
#define EFI_USB2_HC_PROTOCOL_GUID \
{ \
0x3e745226, 0x9818, 0x45b6, {0xa2, 0xac, 0xd7, 0xcd, 0xe, 0x8b, 0xa2, 0xbc } \
}
///
/// Forward reference for pure ANSI compatability
///
typedef struct _EFI_USB2_HC_PROTOCOL EFI_USB2_HC_PROTOCOL;
typedef struct {
UINT16 PortStatus; ///< Contains current port status bitmap.
UINT16 PortChangeStatus; ///< Contains current port status change bitmap.
} EFI_USB_PORT_STATUS;
///
/// EFI_USB_PORT_STATUS.PortStatus bit definition
///
#define USB_PORT_STAT_CONNECTION 0x0001
#define USB_PORT_STAT_ENABLE 0x0002
#define USB_PORT_STAT_SUSPEND 0x0004
#define USB_PORT_STAT_OVERCURRENT 0x0008
#define USB_PORT_STAT_RESET 0x0010
#define USB_PORT_STAT_POWER 0x0100
#define USB_PORT_STAT_LOW_SPEED 0x0200
#define USB_PORT_STAT_HIGH_SPEED 0x0400
#define USB_PORT_STAT_SUPER_SPEED 0x0800
#define USB_PORT_STAT_OWNER 0x2000
///
/// EFI_USB_PORT_STATUS.PortChangeStatus bit definition
///
#define USB_PORT_STAT_C_CONNECTION 0x0001
#define USB_PORT_STAT_C_ENABLE 0x0002
#define USB_PORT_STAT_C_SUSPEND 0x0004
#define USB_PORT_STAT_C_OVERCURRENT 0x0008
#define USB_PORT_STAT_C_RESET 0x0010
///
/// Usb port features value
/// Each value indicates its bit index in the port status and status change bitmaps,
/// if combines these two bitmaps into a 32-bit bitmap.
///
typedef enum {
EfiUsbPortEnable = 1,
EfiUsbPortSuspend = 2,
EfiUsbPortReset = 4,
EfiUsbPortPower = 8,
EfiUsbPortOwner = 13,
EfiUsbPortConnectChange = 16,
EfiUsbPortEnableChange = 17,
EfiUsbPortSuspendChange = 18,
EfiUsbPortOverCurrentChange = 19,
EfiUsbPortResetChange = 20
} EFI_USB_PORT_FEATURE;
#define EFI_USB_SPEED_FULL 0x0000 ///< 12 Mb/s, USB 1.1 OHCI and UHCI HC.
#define EFI_USB_SPEED_LOW 0x0001 ///< 1 Mb/s, USB 1.1 OHCI and UHCI HC.
#define EFI_USB_SPEED_HIGH 0x0002 ///< 480 Mb/s, USB 2.0 EHCI HC.
#define EFI_USB_SPEED_SUPER 0x0003 ///< 4.8 Gb/s, USB 3.0 XHCI HC.
typedef struct {
UINT8 TranslatorHubAddress; ///< device address
UINT8 TranslatorPortNumber; ///< the port number of the hub that device is connected to.
} EFI_USB2_HC_TRANSACTION_TRANSLATOR;
//
// Protocol definitions
//
/**
Retrieves the Host Controller capabilities.
@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
@param MaxSpeed Host controller data transfer speed.
@param PortNumber Number of the root hub ports.
@param Is64BitCapable TRUE if controller supports 64-bit memory addressing,
FALSE otherwise.
@retval EFI_SUCCESS The host controller capabilities were retrieved successfully.
@retval EFI_INVALID_PARAMETER One of the input args was NULL.
@retval EFI_DEVICE_ERROR An error was encountered while attempting to
retrieve the capabilities.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_USB2_HC_PROTOCOL_GET_CAPABILITY)(
IN EFI_USB2_HC_PROTOCOL *This,
OUT UINT8 *MaxSpeed,
OUT UINT8 *PortNumber,
OUT UINT8 *Is64BitCapable
);
#define EFI_USB_HC_RESET_GLOBAL 0x0001
#define EFI_USB_HC_RESET_HOST_CONTROLLER 0x0002
#define EFI_USB_HC_RESET_GLOBAL_WITH_DEBUG 0x0004
#define EFI_USB_HC_RESET_HOST_WITH_DEBUG 0x0008
/**
Provides software reset for the USB host controller.
@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
@param Attributes A bit mask of the reset operation to perform.
@retval EFI_SUCCESS The reset operation succeeded.
@retval EFI_INVALID_PARAMETER Attributes is not valid.
@retval EFI_UNSUPPORTED The type of reset specified by Attributes is not currently
supported by the host controller hardware.
@retval EFI_ACCESS_DENIED Reset operation is rejected due to the debug port being configured
and active; only EFI_USB_HC_RESET_GLOBAL_WITH_DEBUG or
EFI_USB_HC_RESET_HOST_WITH_DEBUG reset Attributes can be used to
perform reset operation for this host controller.
@retval EFI_DEVICE_ERROR An error was encountered while attempting to
retrieve the capabilities.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_USB2_HC_PROTOCOL_RESET)(
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT16 Attributes
);
/**
Enumration value for status of USB HC.
**/
typedef enum {
EfiUsbHcStateHalt, ///< The host controller is in halt
///< state. No USB transactions can occur
///< while in this state. The host
///< controller can enter this state for
///< three reasons: 1) After host
///< controller hardware reset. 2)
///< Explicitly set by software. 3)
///< Triggered by a fatal error such as
///< consistency check failure.
EfiUsbHcStateOperational, ///< The host controller is in an
///< operational state. When in
///< this state, the host
///< controller can execute bus
///< traffic. This state must be
///< explicitly set to enable the
///< USB bus traffic.
EfiUsbHcStateSuspend, ///< The host controller is in the
///< suspend state. No USB
///< transactions can occur while in
///< this state. The host controller
///< enters this state for the
///< following reasons: 1) Explicitly
///< set by software. 2) Triggered
///< when there is no bus traffic for
///< 3 microseconds.
EfiUsbHcStateMaximum ///< Maximum value for enumration value of HC status.
} EFI_USB_HC_STATE;
/**
Retrieves current state of the USB host controller.
@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
@param State A pointer to the EFI_USB_HC_STATE data structure that
indicates current state of the USB host controller.
@retval EFI_SUCCESS The state information of the host controller was returned in State.
@retval EFI_INVALID_PARAMETER State is NULL.
@retval EFI_DEVICE_ERROR An error was encountered while attempting to retrieve the
host controller's current state.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_USB2_HC_PROTOCOL_GET_STATE)(
IN EFI_USB2_HC_PROTOCOL *This,
OUT EFI_USB_HC_STATE *State
);
/**
Sets the USB host controller to a specific state.
@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
@param State Indicates the state of the host controller that will be set.
@retval EFI_SUCCESS The USB host controller was successfully placed in the state
specified by State.
@retval EFI_INVALID_PARAMETER State is not valid.
@retval EFI_DEVICE_ERROR Failed to set the state specified by State due to device error.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_USB2_HC_PROTOCOL_SET_STATE)(
IN EFI_USB2_HC_PROTOCOL *This,
IN EFI_USB_HC_STATE State
);
/**
Submits control transfer to a target USB device.
@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
@param DeviceAddress Represents the address of the target device on the USB.
@param DeviceSpeed Indicates device speed.
@param MaximumPacketLength Indicates the maximum packet size that the default control transfer
endpoint is capable of sending or receiving.
@param Request A pointer to the USB device request that will be sent to the USB device.
@param TransferDirection Specifies the data direction for the transfer. There are three values
available, EfiUsbDataIn, EfiUsbDataOut and EfiUsbNoData.
@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, indicates the size, in bytes, of the data buffer specified by Data.
On output, indicates the amount of data actually transferred.
@param TimeOut Indicates the maximum time, in milliseconds, which the transfer is
allowed to complete.
@param Translator A pointer to the transaction translator data.
@param TransferResult A pointer to the detailed result information generated by this control
transfer.
@retval EFI_SUCCESS The control transfer was completed successfully.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval EFI_OUT_OF_RESOURCES The control transfer could not be completed due to a lack of resources.
@retval EFI_TIMEOUT The control transfer failed due to timeout.
@retval EFI_DEVICE_ERROR The control transfer failed due to host controller or device error.
Caller should check TransferResult for detailed error information.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_USB2_HC_PROTOCOL_CONTROL_TRANSFER)(
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 DeviceAddress,
IN UINT8 DeviceSpeed,
IN UINTN MaximumPacketLength,
IN EFI_USB_DEVICE_REQUEST *Request,
IN EFI_USB_DATA_DIRECTION TransferDirection,
IN OUT VOID *Data OPTIONAL,
IN OUT UINTN *DataLength OPTIONAL,
IN UINTN TimeOut,
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
OUT UINT32 *TransferResult
);
#define EFI_USB_MAX_BULK_BUFFER_NUM 10
/**
Submits bulk transfer to a bulk endpoint of a USB device.
@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
@param DeviceAddress Represents the address of the target device on the USB.
@param EndPointAddress The combination of an endpoint number and an endpoint direction of the
target USB device.
@param DeviceSpeed Indicates device speed.
@param MaximumPacketLength Indicates the maximum packet size the target endpoint is capable of
sending or receiving.
@param DataBuffersNumber Number of data buffers prepared for the transfer.
@param Data Array of pointers to the buffers of data that will be transmitted to USB
device or received from USB device.
@param DataLength When input, indicates the size, in bytes, of the data buffers specified by
Data. When output, indicates the actually transferred data size.
@param DataToggle A pointer to the data toggle value.
@param TimeOut Indicates the maximum time, in milliseconds, which the transfer is
allowed to complete.
@param Translator A pointer to the transaction translator data.
@param TransferResult A pointer to the detailed result information of the bulk transfer.
@retval EFI_SUCCESS The bulk transfer was completed successfully.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval EFI_OUT_OF_RESOURCES The bulk transfer could not be submitted due to a lack of resources.
@retval EFI_TIMEOUT The bulk transfer failed due to timeout.
@retval EFI_DEVICE_ERROR The bulk transfer failed due to host controller or device error.
Caller should check TransferResult for detailed error information.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_USB2_HC_PROTOCOL_BULK_TRANSFER)(
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 DeviceAddress,
IN UINT8 EndPointAddress,
IN UINT8 DeviceSpeed,
IN UINTN MaximumPacketLength,
IN UINT8 DataBuffersNumber,
IN OUT VOID *Data[EFI_USB_MAX_BULK_BUFFER_NUM],
IN OUT UINTN *DataLength,
IN OUT UINT8 *DataToggle,
IN UINTN TimeOut,
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
OUT UINT32 *TransferResult
);
/**
Submits an asynchronous interrupt transfer to an interrupt endpoint of a USB device.
Translator parameter doesn't exist in UEFI2.0 spec, but it will be updated in the following specification version.
@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
@param DeviceAddress Represents the address of the target device on the USB.
@param EndPointAddress The combination of an endpoint number and an endpoint direction of the
target USB device.
@param DeviceSpeed Indicates device speed.
@param MaximumPacketLength Indicates the maximum packet size the target endpoint is capable of
sending or receiving.
@param IsNewTransfer If TRUE, an asynchronous interrupt pipe is built between the host and the
target interrupt endpoint. If FALSE, the specified asynchronous interrupt
pipe is canceled. If TRUE, and an interrupt transfer exists for the target
end point, then EFI_INVALID_PARAMETER is returned.
@param DataToggle A pointer to the data toggle value.
@param PollingInterval Indicates the interval, in milliseconds, that the asynchronous interrupt
transfer is polled.
@param DataLength Indicates the length of data to be received at the rate specified by
PollingInterval from the target asynchronous interrupt endpoint.
@param Translator A pointr to the transaction translator data.
@param CallBackFunction The Callback function. This function is called at the rate specified by
PollingInterval.
@param Context The context that is passed to the CallBackFunction. This is an
optional parameter and may be NULL.
@retval EFI_SUCCESS The asynchronous interrupt transfer request has been successfully
submitted or canceled.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_USB2_HC_PROTOCOL_ASYNC_INTERRUPT_TRANSFER)(
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 DeviceAddress,
IN UINT8 EndPointAddress,
IN UINT8 DeviceSpeed,
IN UINTN MaxiumPacketLength,
IN BOOLEAN IsNewTransfer,
IN OUT UINT8 *DataToggle,
IN UINTN PollingInterval OPTIONAL,
IN UINTN DataLength OPTIONAL,
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator OPTIONAL,
IN EFI_ASYNC_USB_TRANSFER_CALLBACK CallBackFunction OPTIONAL,
IN VOID *Context OPTIONAL
);
/**
Submits synchronous interrupt transfer to an interrupt endpoint of a USB device.
Translator parameter doesn't exist in UEFI2.0 spec, but it will be updated in the following specification version.
@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
@param DeviceAddress Represents the address of the target device on the USB.
@param EndPointAddress The combination of an endpoint number and an endpoint direction of the
target USB device.
@param DeviceSpeed Indicates device speed.
@param MaximumPacketLength Indicates the maximum packet size the target endpoint is capable of
sending or receiving.
@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, the size, in bytes, of the data buffer specified by Data. On
output, the number of bytes transferred.
@param DataToggle A pointer to the data toggle value.
@param TimeOut Indicates the maximum time, in milliseconds, which the transfer is
allowed to complete.
@param Translator A pointr to the transaction translator data.
@param TransferResult A pointer to the detailed result information from the synchronous
interrupt transfer.
@retval EFI_SUCCESS The synchronous interrupt transfer was completed successfully.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval EFI_OUT_OF_RESOURCES The synchronous interrupt transfer could not be submitted due to a lack of resources.
@retval EFI_TIMEOUT The synchronous interrupt transfer failed due to timeout.
@retval EFI_DEVICE_ERROR The synchronous interrupt transfer failed due to host controller or device error.
Caller should check TransferResult for detailed error information.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_USB2_HC_PROTOCOL_SYNC_INTERRUPT_TRANSFER)(
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 DeviceAddress,
IN UINT8 EndPointAddress,
IN UINT8 DeviceSpeed,
IN UINTN MaximumPacketLength,
IN OUT VOID *Data,
IN OUT UINTN *DataLength,
IN OUT UINT8 *DataToggle,
IN UINTN TimeOut,
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
OUT UINT32 *TransferResult
);
#define EFI_USB_MAX_ISO_BUFFER_NUM 7
#define EFI_USB_MAX_ISO_BUFFER_NUM1 2
/**
Submits isochronous transfer to an isochronous endpoint of a USB device.
This function is used to submit isochronous transfer to a target endpoint of a USB device.
The target endpoint is specified by DeviceAddressand EndpointAddress. Isochronous transfers are
used when working with isochronous date. It provides periodic, continuous communication between
the host and a device. Isochronous transfers can beused only by full-speed, high-speed, and
super-speed devices.
High-speed isochronous transfers can be performed using multiple data buffers. The number of
buffers that are actually prepared for the transfer is specified by DataBuffersNumber. For
full-speed isochronous transfers this value is ignored.
Data represents a list of pointers to the data buffers. For full-speed isochronous transfers
only the data pointed by Data[0]shall be used. For high-speed isochronous transfers and for
the split transactions depending on DataLengththere several data buffers canbe used. For the
high-speed isochronous transfers the total number of buffers must not exceed EFI_USB_MAX_ISO_BUFFER_NUM.
For split transactions performed on full-speed device by high-speed host controller the total
number of buffers is limited to EFI_USB_MAX_ISO_BUFFER_NUM1.
If the isochronous transfer is successful, then EFI_SUCCESSis returned. The isochronous transfer
is designed to be completed within one USB frame time, if it cannot be completed, EFI_TIMEOUT
is returned. If an error other than timeout occurs during the USB transfer, then EFI_DEVICE_ERROR
is returned and the detailed status code will be returned in TransferResult.
EFI_INVALID_PARAMETERis returned if one of the following conditionsis satisfied:
- Data is NULL.
- DataLength is 0.
- DeviceSpeed is not one of the supported values listed above.
- MaximumPacketLength is invalid. MaximumPacketLength must be 1023 or less for full-speed devices,
and 1024 or less for high-speed and super-speed devices.
- TransferResult is NULL.
@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
@param DeviceAddress Represents the address of the target device on the USB.
@param EndPointAddress The combination of an endpoint number and an endpoint direction of the
target USB device.
@param DeviceSpeed Indicates device speed. The supported values are EFI_USB_SPEED_FULL,
EFI_USB_SPEED_HIGH, or EFI_USB_SPEED_SUPER.
@param MaximumPacketLength Indicates the maximum packet size the target endpoint is capable of
sending or receiving.
@param DataBuffersNumber Number of data buffers prepared for the transfer.
@param Data Array of pointers to the buffers of data that will be transmitted to USB
device or received from USB device.
@param DataLength Specifies the length, in bytes, of the data to be sent to or received from
the USB device.
@param Translator A pointer to the transaction translator data.
@param TransferResult A pointer to the detailed result information of the isochronous transfer.
@retval EFI_SUCCESS The isochronous transfer was completed successfully.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval EFI_OUT_OF_RESOURCES The isochronous transfer could not be submitted due to a lack of resources.
@retval EFI_TIMEOUT The isochronous transfer cannot be completed within the one USB frame time.
@retval EFI_DEVICE_ERROR The isochronous transfer failed due to host controller or device error.
Caller should check TransferResult for detailed error information.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_USB2_HC_PROTOCOL_ISOCHRONOUS_TRANSFER)(
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 DeviceAddress,
IN UINT8 EndPointAddress,
IN UINT8 DeviceSpeed,
IN UINTN MaximumPacketLength,
IN UINT8 DataBuffersNumber,
IN OUT VOID *Data[EFI_USB_MAX_ISO_BUFFER_NUM],
IN UINTN DataLength,
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
OUT UINT32 *TransferResult
);
/**
Submits nonblocking isochronous transfer to an isochronous endpoint of a USB device.
This is an asynchronous type of USB isochronous transfer. If the caller submits a USB
isochronous transfer request through this function, this function will return immediately.
When the isochronous transfer completes, the IsochronousCallbackfunction will be triggered,
the caller can know the transfer results. If the transfer is successful, the caller can get
the data received or sent in this callback function.
The target endpoint is specified by DeviceAddressand EndpointAddress. Isochronous transfers
are used when working with isochronous date. It provides periodic, continuous communication
between the host and a device. Isochronous transfers can be used only by full-speed, high-speed,
and super-speed devices.
High-speed isochronous transfers can be performed using multiple data buffers. The number of
buffers that are actually prepared for the transfer is specified by DataBuffersNumber. For
full-speed isochronous transfers this value is ignored.
Data represents a list of pointers to the data buffers. For full-speed isochronous transfers
only the data pointed by Data[0] shall be used. For high-speed isochronous transfers and for
the split transactions depending on DataLength there several data buffers can be used. For
the high-speed isochronous transfers the total number of buffers must not exceed EFI_USB_MAX_ISO_BUFFER_NUM.
For split transactions performed on full-speed device by high-speed host controller the total
number of buffers is limited to EFI_USB_MAX_ISO_BUFFER_NUM1.
EFI_INVALID_PARAMETER is returned if one of the following conditionsis satisfied:
- Data is NULL.
- DataLength is 0.
- DeviceSpeed is not one of the supported values listed above.
- MaximumPacketLength is invalid. MaximumPacketLength must be 1023 or less for full-speed
devices and 1024 or less for high-speed and super-speed devices.
@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
@param DeviceAddress Represents the address of the target device on the USB.
@param EndPointAddress The combination of an endpoint number and an endpoint direction of the
target USB device.
@param DeviceSpeed Indicates device speed. The supported values are EFI_USB_SPEED_FULL,
EFI_USB_SPEED_HIGH, or EFI_USB_SPEED_SUPER.
@param MaximumPacketLength Indicates the maximum packet size the target endpoint is capable of
sending or receiving.
@param DataBuffersNumber Number of data buffers prepared for the transfer.
@param Data Array of pointers to the buffers of data that will be transmitted to USB
device or received from USB device.
@param DataLength Specifies the length, in bytes, of the data to be sent to or received from
the USB device.
@param Translator A pointer to the transaction translator data.
@param IsochronousCallback The Callback function. This function is called if the requested
isochronous transfer is completed.
@param Context Data passed to the IsochronousCallback function. This is an
optional parameter and may be NULL.
@retval EFI_SUCCESS The asynchronous isochronous transfer request has been successfully
submitted or canceled.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval EFI_OUT_OF_RESOURCES The asynchronous isochronous transfer could not be submitted due to
a lack of resources.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_USB2_HC_PROTOCOL_ASYNC_ISOCHRONOUS_TRANSFER)(
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 DeviceAddress,
IN UINT8 EndPointAddress,
IN UINT8 DeviceSpeed,
IN UINTN MaximumPacketLength,
IN UINT8 DataBuffersNumber,
IN OUT VOID *Data[EFI_USB_MAX_ISO_BUFFER_NUM],
IN UINTN DataLength,
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
IN EFI_ASYNC_USB_TRANSFER_CALLBACK IsochronousCallBack,
IN VOID *Context OPTIONAL
);
/**
Retrieves the current status of a USB root hub port.
@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
@param PortNumber Specifies the root hub port from which the status is to be retrieved.
This value is zero based.
@param PortStatus A pointer to the current port status bits and port status change bits.
@retval EFI_SUCCESS The status of the USB root hub port specified by PortNumber
was returned in PortStatus.
@retval EFI_INVALID_PARAMETER PortNumber is invalid.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_USB2_HC_PROTOCOL_GET_ROOTHUB_PORT_STATUS)(
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 PortNumber,
OUT EFI_USB_PORT_STATUS *PortStatus
);
/**
Sets a feature for the specified root hub port.
@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
@param PortNumber Specifies the root hub port whose feature is requested to be set. This
value is zero based.
@param PortFeature Indicates the feature selector associated with the feature set request.
@retval EFI_SUCCESS The feature specified by PortFeature was set for the USB
root hub port specified by PortNumber.
@retval EFI_INVALID_PARAMETER PortNumber is invalid or PortFeature is invalid for this function.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_USB2_HC_PROTOCOL_SET_ROOTHUB_PORT_FEATURE)(
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 PortNumber,
IN EFI_USB_PORT_FEATURE PortFeature
);
/**
Clears a feature for the specified root hub port.
@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
@param PortNumber Specifies the root hub port whose feature is requested to be cleared. This
value is zero based.
@param PortFeature Indicates the feature selector associated with the feature clear request.
@retval EFI_SUCCESS The feature specified by PortFeature was cleared for the USB
root hub port specified by PortNumber.
@retval EFI_INVALID_PARAMETER PortNumber is invalid or PortFeature is invalid for this function.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_USB2_HC_PROTOCOL_CLEAR_ROOTHUB_PORT_FEATURE)(
IN EFI_USB2_HC_PROTOCOL *This,
IN UINT8 PortNumber,
IN EFI_USB_PORT_FEATURE PortFeature
);
///
/// The EFI_USB2_HC_PROTOCOL provides USB host controller management, basic
/// data transactions over a USB bus, and USB root hub access. A device driver
/// that wishes to manage a USB bus in a system retrieves the EFI_USB2_HC_PROTOCOL
/// instance that is associated with the USB bus to be managed. A device handle
/// for a USB host controller will minimally contain an EFI_DEVICE_PATH_PROTOCOL
/// instance, and an EFI_USB2_HC_PROTOCOL instance.
///
struct _EFI_USB2_HC_PROTOCOL {
EFI_USB2_HC_PROTOCOL_GET_CAPABILITY GetCapability;
EFI_USB2_HC_PROTOCOL_RESET Reset;
EFI_USB2_HC_PROTOCOL_GET_STATE GetState;
EFI_USB2_HC_PROTOCOL_SET_STATE SetState;
EFI_USB2_HC_PROTOCOL_CONTROL_TRANSFER ControlTransfer;
EFI_USB2_HC_PROTOCOL_BULK_TRANSFER BulkTransfer;
EFI_USB2_HC_PROTOCOL_ASYNC_INTERRUPT_TRANSFER AsyncInterruptTransfer;
EFI_USB2_HC_PROTOCOL_SYNC_INTERRUPT_TRANSFER SyncInterruptTransfer;
EFI_USB2_HC_PROTOCOL_ISOCHRONOUS_TRANSFER IsochronousTransfer;
EFI_USB2_HC_PROTOCOL_ASYNC_ISOCHRONOUS_TRANSFER AsyncIsochronousTransfer;
EFI_USB2_HC_PROTOCOL_GET_ROOTHUB_PORT_STATUS GetRootHubPortStatus;
EFI_USB2_HC_PROTOCOL_SET_ROOTHUB_PORT_FEATURE SetRootHubPortFeature;
EFI_USB2_HC_PROTOCOL_CLEAR_ROOTHUB_PORT_FEATURE ClearRootHubPortFeature;
///
/// The major revision number of the USB host controller. The revision information
/// indicates the release of the Universal Serial Bus Specification with which the
/// host controller is compliant.
///
UINT16 MajorRevision;
///
/// The minor revision number of the USB host controller. The revision information
/// indicates the release of the Universal Serial Bus Specification with which the
/// host controller is compliant.
///
UINT16 MinorRevision;
};
extern EFI_GUID gEfiUsb2HcProtocolGuid;
#endif