mirror of https://github.com/acidanthera/audk.git
600 lines
30 KiB
C
600 lines
30 KiB
C
/** @file
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EFI_USB2_HC_PROTOCOL as defined in UEFI 2.0.
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The USB Host Controller Protocol is used by code, typically USB bus drivers,
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running in the EFI boot services environment, to perform data transactions over
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a USB bus. In addition, it provides an abstraction for the root hub of the USB bus.
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Copyright (c) 2006 - 2008, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _USB2_HOSTCONTROLLER_H_
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#define _USB2_HOSTCONTROLLER_H_
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#include <Protocol/UsbIo.h>
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#define EFI_USB2_HC_PROTOCOL_GUID \
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{ \
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0x3e745226, 0x9818, 0x45b6, {0xa2, 0xac, 0xd7, 0xcd, 0xe, 0x8b, 0xa2, 0xbc } \
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}
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///
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/// Forward reference for pure ANSI compatability
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///
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typedef struct _EFI_USB2_HC_PROTOCOL EFI_USB2_HC_PROTOCOL;
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typedef struct {
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UINT16 PortStatus; ///< Contains current port status bitmap.
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UINT16 PortChangeStatus; ///< Contains current port status change bitmap.
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} EFI_USB_PORT_STATUS;
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///
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/// EFI_USB_PORT_STATUS.PortStatus bit definition
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///
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#define USB_PORT_STAT_CONNECTION 0x0001
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#define USB_PORT_STAT_ENABLE 0x0002
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#define USB_PORT_STAT_SUSPEND 0x0004
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#define USB_PORT_STAT_OVERCURRENT 0x0008
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#define USB_PORT_STAT_RESET 0x0010
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#define USB_PORT_STAT_POWER 0x0100
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#define USB_PORT_STAT_LOW_SPEED 0x0200
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#define USB_PORT_STAT_HIGH_SPEED 0x0400
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#define USB_PORT_STAT_OWNER 0x0800
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///
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/// EFI_USB_PORT_STATUS.PortChangeStatus bit definition
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///
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#define USB_PORT_STAT_C_CONNECTION 0x0001
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#define USB_PORT_STAT_C_ENABLE 0x0002
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#define USB_PORT_STAT_C_SUSPEND 0x0004
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#define USB_PORT_STAT_C_OVERCURRENT 0x0008
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#define USB_PORT_STAT_C_RESET 0x0010
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///
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/// Usb port features value
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/// Each value indicates its bit index in the port status and status change bitmaps,
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/// if combines these two bitmaps into a 32-bit bitmap.
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///
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typedef enum {
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EfiUsbPortEnable = 1,
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EfiUsbPortSuspend = 2,
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EfiUsbPortReset = 4,
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EfiUsbPortPower = 8,
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EfiUsbPortOwner = 13,
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EfiUsbPortConnectChange = 16,
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EfiUsbPortEnableChange = 17,
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EfiUsbPortSuspendChange = 18,
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EfiUsbPortOverCurrentChange = 19,
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EfiUsbPortResetChange = 20
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} EFI_USB_PORT_FEATURE;
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#define EFI_USB_SPEED_FULL 0x0000 ///< 12 Mb/s, USB 1.1 OHCI and UHCI HC.
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#define EFI_USB_SPEED_LOW 0x0001 ///< 1 Mb/s, USB 1.1 OHCI and UHCI HC.
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#define EFI_USB_SPEED_HIGH 0x0002 ///< 480 Mb/s, USB 2.0 EHCI HC.
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typedef struct {
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UINT8 TranslatorHubAddress; ///< device address
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UINT8 TranslatorPortNumber; ///< the port number of the hub that device is connected to.
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} EFI_USB2_HC_TRANSACTION_TRANSLATOR;
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//
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// Protocol definitions
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//
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/**
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Retrieves the Host Controller capabilities.
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@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
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@param MaxSpeed Host controller data transfer speed.
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@param PortNumber Number of the root hub ports.
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@param Is64BitCapable TRUE if controller supports 64-bit memory addressing,
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FALSE otherwise.
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@retval EFI_SUCCESS The host controller capabilities were retrieved successfully.
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@retval EFI_INVALID_PARAMETER One of the input args was NULL.
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@retval EFI_DEVICE_ERROR An error was encountered while attempting to
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retrieve the capabilities.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_USB2_HC_PROTOCOL_GET_CAPABILITY)(
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IN EFI_USB2_HC_PROTOCOL *This,
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OUT UINT8 *MaxSpeed,
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OUT UINT8 *PortNumber,
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OUT UINT8 *Is64BitCapable
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);
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#define EFI_USB_HC_RESET_GLOBAL 0x0001
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#define EFI_USB_HC_RESET_HOST_CONTROLLER 0x0002
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#define EFI_USB_HC_RESET_GLOBAL_WITH_DEBUG 0x0004
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#define EFI_USB_HC_RESET_HOST_WITH_DEBUG 0x0008
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/**
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Provides software reset for the USB host controller.
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@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
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@param Attributes A bit mask of the reset operation to perform.
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@retval EFI_SUCCESS The reset operation succeeded.
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@retval EFI_INVALID_PARAMETER Attributes is not valid.
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@retval EFI_UNSUPPORTED The type of reset specified by Attributes is not currently
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supported by the host controller hardware.
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@retval EFI_ACCESS_DENIED Reset operation is rejected due to the debug port being configured
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and active; only EFI_USB_HC_RESET_GLOBAL_WITH_DEBUG or
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EFI_USB_HC_RESET_HOST_WITH_DEBUG reset Attributes can be used to
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perform reset operation for this host controller.
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@retval EFI_DEVICE_ERROR An error was encountered while attempting to
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retrieve the capabilities.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_USB2_HC_PROTOCOL_RESET)(
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IN EFI_USB2_HC_PROTOCOL *This,
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IN UINT16 Attributes
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);
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/**
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Enumration value for status of USB HC.
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**/
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typedef enum {
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EfiUsbHcStateHalt, ///< The host controller is in halt
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///< state. No USB transactions can occur
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///< while in this state. The host
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///< controller can enter this state for
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///< three reasons: 1) After host
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///< controller hardware reset. 2)
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///< Explicitly set by software. 3)
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///< Triggered by a fatal error such as
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///< consistency check failure.
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EfiUsbHcStateOperational, ///< The host controller is in an
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///< operational state. When in
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///< this state, the host
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///< controller can execute bus
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///< traffic. This state must be
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///< explicitly set to enable the
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///< USB bus traffic.
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EfiUsbHcStateSuspend, ///< The host controller is in the
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///< suspend state. No USB
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///< transactions can occur while in
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///< this state. The host controller
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///< enters this state for the
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///< following reasons: 1) Explicitly
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///< set by software. 2) Triggered
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///< when there is no bus traffic for
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///< 3 microseconds.
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EfiUsbHcStateMaximum ///< Maximum value for enumration value of HC status.
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} EFI_USB_HC_STATE;
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/**
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Retrieves current state of the USB host controller.
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@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
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@param State A pointer to the EFI_USB_HC_STATE data structure that
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indicates current state of the USB host controller.
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@retval EFI_SUCCESS The state information of the host controller was returned in State.
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@retval EFI_INVALID_PARAMETER State is NULL.
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@retval EFI_DEVICE_ERROR An error was encountered while attempting to retrieve the
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host controller's current state.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_USB2_HC_PROTOCOL_GET_STATE)(
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IN CONST EFI_USB2_HC_PROTOCOL *This,
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OUT EFI_USB_HC_STATE *State
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);
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/**
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Sets the USB host controller to a specific state.
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@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
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@param State Indicates the state of the host controller that will be set.
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@retval EFI_SUCCESS The USB host controller was successfully placed in the state
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specified by State.
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@retval EFI_INVALID_PARAMETER State is not valid.
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@retval EFI_DEVICE_ERROR Failed to set the state specified by State due to device error.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_USB2_HC_PROTOCOL_SET_STATE)(
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IN EFI_USB2_HC_PROTOCOL *This,
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IN EFI_USB_HC_STATE State
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);
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/**
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Submits control transfer to a target USB device.
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@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
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@param DeviceAddress Represents the address of the target device on the USB.
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@param DeviceSpeed Indicates device speed.
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@param MaximumPacketLength Indicates the maximum packet size that the default control transfer
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endpoint is capable of sending or receiving.
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@param Request A pointer to the USB device request that will be sent to the USB device.
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@param TransferDirection Specifies the data direction for the transfer. There are three values
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available, EfiUsbDataIn, EfiUsbDataOut and EfiUsbNoData.
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@param Data A pointer to the buffer of data that will be transmitted to USB device or
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received from USB device.
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@param DataLength On input, indicates the size, in bytes, of the data buffer specified by Data.
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On output, indicates the amount of data actually transferred.
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@param TimeOut Indicates the maximum time, in milliseconds, which the transfer is
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allowed to complete.
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@param Translator A pointer to the transaction translator data.
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@param TransferResult A pointer to the detailed result information generated by this control
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transfer.
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@retval EFI_SUCCESS The control transfer was completed successfully.
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@retval EFI_INVALID_PARAMETER Some parameters are invalid.
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@retval EFI_OUT_OF_RESOURCES The control transfer could not be completed due to a lack of resources.
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@retval EFI_TIMEOUT The control transfer failed due to timeout.
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@retval EFI_DEVICE_ERROR The control transfer failed due to host controller or device error.
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Caller should check TransferResult for detailed error information.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_USB2_HC_PROTOCOL_CONTROL_TRANSFER)(
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IN EFI_USB2_HC_PROTOCOL *This,
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IN UINT8 DeviceAddress,
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IN UINT8 DeviceSpeed,
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IN UINTN MaximumPacketLength,
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IN EFI_USB_DEVICE_REQUEST *Request,
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IN EFI_USB_DATA_DIRECTION TransferDirection,
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IN OUT VOID *Data OPTIONAL,
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IN OUT UINTN *DataLength OPTIONAL,
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IN UINTN TimeOut,
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IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
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OUT UINT32 *TransferResult
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);
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#define EFI_USB_MAX_BULK_BUFFER_NUM 10
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/**
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Submits bulk transfer to a bulk endpoint of a USB device.
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@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
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@param DeviceAddress Represents the address of the target device on the USB.
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@param EndPointAddress The combination of an endpoint number and an endpoint direction of the
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target USB device.
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@param DeviceSpeed Indicates device speed.
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@param MaximumPacketLength Indicates the maximum packet size the target endpoint is capable of
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sending or receiving.
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@param DataBuffersNumber Number of data buffers prepared for the transfer.
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@param Data Array of pointers to the buffers of data that will be transmitted to USB
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device or received from USB device.
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@param DataLength When input, indicates the size, in bytes, of the data buffers specified by
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Data. When output, indicates the actually transferred data size.
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@param DataToggle A pointer to the data toggle value.
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@param TimeOut Indicates the maximum time, in milliseconds, which the transfer is
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allowed to complete.
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@param Translator A pointer to the transaction translator data.
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@param TransferResult A pointer to the detailed result information of the bulk transfer.
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@retval EFI_SUCCESS The bulk transfer was completed successfully.
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@retval EFI_INVALID_PARAMETER Some parameters are invalid.
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@retval EFI_OUT_OF_RESOURCES The bulk transfer could not be submitted due to a lack of resources.
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@retval EFI_TIMEOUT The bulk transfer failed due to timeout.
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@retval EFI_DEVICE_ERROR The bulk transfer failed due to host controller or device error.
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Caller should check TransferResult for detailed error information.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_USB2_HC_PROTOCOL_BULK_TRANSFER)(
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IN EFI_USB2_HC_PROTOCOL *This,
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IN UINT8 DeviceAddress,
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IN UINT8 EndPointAddress,
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IN UINT8 DeviceSpeed,
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IN UINTN MaximumPacketLength,
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IN UINT8 DataBuffersNumber,
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IN OUT VOID *Data[EFI_USB_MAX_BULK_BUFFER_NUM],
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IN OUT UINTN *DataLength,
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IN OUT UINT8 *DataToggle,
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IN UINTN TimeOut,
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IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
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OUT UINT32 *TransferResult
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);
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/**
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Submits an asynchronous interrupt transfer to an interrupt endpoint of a USB device.
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Translator parameter doesn't exist in UEFI2.0 spec, but it will be updated in the following specification version.
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@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
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@param DeviceAddress Represents the address of the target device on the USB.
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@param EndPointAddress The combination of an endpoint number and an endpoint direction of the
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target USB device.
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@param DeviceSpeed Indicates device speed.
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@param MaximumPacketLength Indicates the maximum packet size the target endpoint is capable of
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sending or receiving.
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@param IsNewTransfer If TRUE, an asynchronous interrupt pipe is built between the host and the
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target interrupt endpoint. If FALSE, the specified asynchronous interrupt
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pipe is canceled. If TRUE, and an interrupt transfer exists for the target
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end point, then EFI_INVALID_PARAMETER is returned.
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@param DataToggle A pointer to the data toggle value.
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@param PollingInterval Indicates the interval, in milliseconds, that the asynchronous interrupt
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transfer is polled.
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@param DataLength Indicates the length of data to be received at the rate specified by
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PollingInterval from the target asynchronous interrupt endpoint.
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@param Translator A pointr to the transaction translator data.
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@param CallBackFunction The Callback function. This function is called at the rate specified by
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PollingInterval.
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@param Context The context that is passed to the CallBackFunction. This is an
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optional parameter and may be NULL.
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@retval EFI_SUCCESS The asynchronous interrupt transfer request has been successfully
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submitted or canceled.
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@retval EFI_INVALID_PARAMETER Some parameters are invalid.
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@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_USB2_HC_PROTOCOL_ASYNC_INTERRUPT_TRANSFER)(
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IN EFI_USB2_HC_PROTOCOL *This,
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IN UINT8 DeviceAddress,
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IN UINT8 EndPointAddress,
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IN UINT8 DeviceSpeed,
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IN UINTN MaxiumPacketLength,
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IN BOOLEAN IsNewTransfer,
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IN OUT UINT8 *DataToggle,
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IN UINTN PollingInterval OPTIONAL,
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IN UINTN DataLength OPTIONAL,
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IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator OPTIONAL,
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IN EFI_ASYNC_USB_TRANSFER_CALLBACK CallBackFunction OPTIONAL,
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IN VOID *Context OPTIONAL
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);
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/**
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Submits synchronous interrupt transfer to an interrupt endpoint of a USB device.
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Translator parameter doesn't exist in UEFI2.0 spec, but it will be updated in the following specification version.
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@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
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@param DeviceAddress Represents the address of the target device on the USB.
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@param EndPointAddress The combination of an endpoint number and an endpoint direction of the
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target USB device.
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@param DeviceSpeed Indicates device speed.
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@param MaximumPacketLength Indicates the maximum packet size the target endpoint is capable of
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sending or receiving.
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@param Data A pointer to the buffer of data that will be transmitted to USB device or
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received from USB device.
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@param DataLength On input, the size, in bytes, of the data buffer specified by Data. On
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output, the number of bytes transferred.
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@param DataToggle A pointer to the data toggle value.
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@param TimeOut Indicates the maximum time, in milliseconds, which the transfer is
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allowed to complete.
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@param Translator A pointr to the transaction translator data.
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@param TransferResult A pointer to the detailed result information from the synchronous
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interrupt transfer.
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@retval EFI_SUCCESS The synchronous interrupt transfer was completed successfully.
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@retval EFI_INVALID_PARAMETER Some parameters are invalid.
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@retval EFI_OUT_OF_RESOURCES The synchronous interrupt transfer could not be submitted due to a lack of resources.
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@retval EFI_TIMEOUT The synchronous interrupt transfer failed due to timeout.
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@retval EFI_DEVICE_ERROR The synchronous interrupt transfer failed due to host controller or device error.
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Caller should check TransferResult for detailed error information.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_USB2_HC_PROTOCOL_SYNC_INTERRUPT_TRANSFER)(
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IN EFI_USB2_HC_PROTOCOL *This,
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IN UINT8 DeviceAddress,
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IN UINT8 EndPointAddress,
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IN UINT8 DeviceSpeed,
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IN UINTN MaximumPacketLength,
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IN OUT VOID *Data,
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IN OUT UINTN *DataLength,
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IN OUT UINT8 *DataToggle,
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IN UINTN TimeOut,
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IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
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OUT UINT32 *TransferResult
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);
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#define EFI_USB_MAX_ISO_BUFFER_NUM 7
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#define EFI_USB_MAX_ISO_BUFFER_NUM1 2
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/**
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Submits isochronous transfer to an isochronous endpoint of a USB device.
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@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
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@param DeviceAddress Represents the address of the target device on the USB.
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@param EndPointAddress The combination of an endpoint number and an endpoint direction of the
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target USB device.
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@param DeviceSpeed Indicates device speed.
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@param MaximumPacketLength Indicates the maximum packet size the target endpoint is capable of
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sending or receiving.
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@param DataBuffersNumber Number of data buffers prepared for the transfer.
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@param Data Array of pointers to the buffers of data that will be transmitted to USB
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device or received from USB device.
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@param DataLength Specifies the length, in bytes, of the data to be sent to or received from
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the USB device.
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@param Translator A pointer to the transaction translator data.
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@param TransferResult A pointer to the detailed result information of the isochronous transfer.
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@retval EFI_SUCCESS The isochronous transfer was completed successfully.
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@retval EFI_INVALID_PARAMETER Some parameters are invalid.
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@retval EFI_OUT_OF_RESOURCES The isochronous transfer could not be submitted due to a lack of resources.
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@retval EFI_TIMEOUT The isochronous transfer cannot be completed within the one USB frame time.
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@retval EFI_DEVICE_ERROR The isochronous transfer failed due to host controller or device error.
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Caller should check TransferResult for detailed error information.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_USB2_HC_PROTOCOL_ISOCHRONOUS_TRANSFER)(
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IN EFI_USB2_HC_PROTOCOL *This,
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IN UINT8 DeviceAddress,
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IN UINT8 EndPointAddress,
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IN UINT8 DeviceSpeed,
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IN UINTN MaximumPacketLength,
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IN UINT8 DataBuffersNumber,
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IN OUT VOID *Data[EFI_USB_MAX_ISO_BUFFER_NUM],
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IN UINTN DataLength,
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IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,
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OUT UINT32 *TransferResult
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);
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/**
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Submits nonblocking isochronous transfer to an isochronous endpoint of a USB device.
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@param This A pointer to the EFI_USB2_HC_PROTOCOL instance.
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@param DeviceAddress Represents the address of the target device on the USB.
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@param EndPointAddress The combination of an endpoint number and an endpoint direction of the
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target USB device.
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@param DeviceSpeed Indicates device speed.
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|
@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 CONST EFI_USB2_HC_PROTOCOL *This,
|
|
IN CONST 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
|