#include "Uhci.h"

Functions
EFI_STATUS EFIAPI	Uhci2Reset (IN EFI_USB2_HC_PROTOCOL *This, IN UINT16 Attributes)

EFI_STATUS EFIAPI	Uhci2GetState (IN EFI_USB2_HC_PROTOCOL This, OUT EFI_USB_HC_STATE State)

EFI_STATUS EFIAPI	Uhci2SetState (IN EFI_USB2_HC_PROTOCOL *This, IN EFI_USB_HC_STATE State)

EFI_STATUS EFIAPI	Uhci2GetCapability (IN EFI_USB2_HC_PROTOCOL This, OUT UINT8 MaxSpeed, OUT UINT8 PortNumber, OUT UINT8 Is64BitCapable)

EFI_STATUS EFIAPI	Uhci2GetRootHubPortStatus (IN EFI_USB2_HC_PROTOCOL This, IN UINT8 PortNumber, OUT EFI_USB_PORT_STATUS PortStatus)

EFI_STATUS EFIAPI	Uhci2SetRootHubPortFeature (IN EFI_USB2_HC_PROTOCOL *This, IN UINT8 PortNumber, IN EFI_USB_PORT_FEATURE PortFeature)

EFI_STATUS EFIAPI	Uhci2ClearRootHubPortFeature (IN EFI_USB2_HC_PROTOCOL *This, IN UINT8 PortNumber, IN EFI_USB_PORT_FEATURE PortFeature)

EFI_STATUS EFIAPI	Uhci2ControlTransfer (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, IN OUT UINTN DataLength, IN UINTN TimeOut, IN EFI_USB2_HC_TRANSACTION_TRANSLATOR Translator, OUT UINT32 TransferResult)

EFI_STATUS EFIAPI	Uhci2BulkTransfer (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)

EFI_STATUS EFIAPI	Uhci2AsyncInterruptTransfer (IN EFI_USB2_HC_PROTOCOL This, IN UINT8 DeviceAddress, IN UINT8 EndPointAddress, IN UINT8 DeviceSpeed, IN UINTN MaximumPacketLength, IN BOOLEAN IsNewTransfer, IN OUT UINT8 DataToggle, IN UINTN PollingInterval, IN UINTN DataLength, IN EFI_USB2_HC_TRANSACTION_TRANSLATOR Translator, IN EFI_ASYNC_USB_TRANSFER_CALLBACK CallBackFunction, IN VOID Context)

EFI_STATUS EFIAPI	Uhci2SyncInterruptTransfer (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)

EFI_STATUS EFIAPI	Uhci2IsochronousTransfer (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)

EFI_STATUS EFIAPI	Uhci2AsyncIsochronousTransfer (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)

EFI_STATUS EFIAPI	UhciDriverEntryPoint (IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)

EFI_STATUS EFIAPI	UhciDriverBindingSupported (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE Controller, IN EFI_DEVICE_PATH_PROTOCOL RemainingDevicePath)

USB_HC_DEV *	UhciAllocateDev (IN EFI_PCI_IO_PROTOCOL PciIo, IN EFI_DEVICE_PATH_PROTOCOL DevicePath, IN UINT64 OriginalPciAttributes)

VOID	UhciFreeDev (IN USB_HC_DEV *Uhc)

VOID	UhciCleanDevUp (IN EFI_HANDLE Controller, IN EFI_USB2_HC_PROTOCOL *This)

VOID EFIAPI	UhcExitBootService (EFI_EVENT Event, VOID *Context)

EFI_STATUS EFIAPI	UhciDriverBindingStart (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE Controller, IN EFI_DEVICE_PATH_PROTOCOL RemainingDevicePath)

EFI_STATUS EFIAPI	UhciDriverBindingStop (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE Controller, IN UINTN NumberOfChildren, IN EFI_HANDLE ChildHandleBuffer)

Variables
EFI_DRIVER_BINDING_PROTOCOL	gUhciDriverBinding

Detailed Description

The UHCI driver model and HC protocol routines.

Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file Uhci.c.

Function Documentation

◆ UhcExitBootService()

VOID EFIAPI UhcExitBootService	(	EFI_EVENT	Event,
		VOID *	Context
	)

One notified function to stop the Host Controller when gBS->ExitBootServices() called.

Parameters

Event	Pointer to this event
Context	Event handler private data

Definition at line 1573 of file Uhci.c.

◆ Uhci2AsyncInterruptTransfer()

EFI_STATUS EFIAPI Uhci2AsyncInterruptTransfer	(	IN EFI_USB2_HC_PROTOCOL *	This,
		IN UINT8	DeviceAddress,
		IN UINT8	EndPointAddress,
		IN UINT8	DeviceSpeed,
		IN UINTN	MaximumPacketLength,
		IN BOOLEAN	IsNewTransfer,
		IN OUT UINT8 *	DataToggle,
		IN UINTN	PollingInterval,
		IN UINTN	DataLength,
		IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *	Translator,
		IN EFI_ASYNC_USB_TRANSFER_CALLBACK	CallBackFunction,
		IN VOID *	Context
	)

Submits an asynchronous interrupt transfer to an interrupt endpoint of a USB device according to UEFI 2.0 spec.

Parameters

This	A pointer to the EFI_USB2_HC_PROTOCOL instance.
DeviceAddress	Target device address.
EndPointAddress	Endpoint number and direction.
DeviceSpeed	Device speed.
MaximumPacketLength	Maximum packet size of the target endpoint.
IsNewTransfer	If TRUE, submit a new transfer, if FALSE cancel old transfer.
DataToggle	On input, data toggle to use; On output, next data toggle.
PollingInterval	Interrupt poll rate in milliseconds.
DataLength	On input, size of the data buffer, On output, actually transferred data size.
Translator	A pointr to the transaction translator data.
CallBackFunction	Function to call periodically.
Context	User context.

Returns: EFI_SUCCESS Transfer was submitted.; EFI_INVALID_PARAMETER Some parameters are invalid.; EFI_OUT_OF_RESOURCES Failed due to a lack of resources.; EFI_DEVICE_ERROR Can't read register.

Definition at line 929 of file Uhci.c.

◆ Uhci2AsyncIsochronousTransfer()

EFI_STATUS EFIAPI Uhci2AsyncIsochronousTransfer	(	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
	)

Submits Async isochronous transfer to a target USB device according to UEFI 2.0 spec.

Parameters

This	A pointer to the EFI_USB2_HC_PROTOCOL instance.
DeviceAddress	Target device address.
EndPointAddress	Endpoint number and direction.
DeviceSpeed	Device speed.
MaximumPacketLength	Maximum packet size of the target endpoint.
DataBuffersNumber	Number of data buffers prepared for the transfer.
Data	Array of pointers to the buffers of data.
DataLength	On input, size of the data buffer, On output, actually transferred data size.
Translator	A pointr to the transaction translator data.
IsochronousCallBack	Function to call when the transfer complete.
Context	Pass to the call back function as parameter.

Returns: EFI_UNSUPPORTED

Definition at line 1288 of file Uhci.c.

◆ Uhci2BulkTransfer()

EFI_STATUS EFIAPI Uhci2BulkTransfer	(	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 bulk transfer to a bulk endpoint of a USB device.

Parameters

This	A pointer to the EFI_USB2_HC_PROTOCOL instance.
DeviceAddress	Target device address.
EndPointAddress	Endpoint number and direction.
DeviceSpeed	Device speed.
MaximumPacketLength	Maximum packet size of the target endpoint.
DataBuffersNumber	Number of data buffers prepared for the transfer.
Data	Array of pointers to the buffers of data.
DataLength	On input, size of the data buffer, On output, actually transferred data size.
DataToggle	On input, data toggle to use; On output, next data toggle.
TimeOut	Maximum time out, in microseconds.
Translator	A pointr to the transaction translator data.
TransferResult	Variable to receive transfer result.

Returns: EFI_SUCCESS The bulk transfer was completed successfully.; EFI_OUT_OF_RESOURCES Failed due to lack of resource.; EFI_INVALID_PARAMETER Some parameters are invalid.; EFI_TIMEOUT Failed due to timeout.; EFI_DEVICE_ERROR Failed due to host controller or device error.

Definition at line 778 of file Uhci.c.

◆ Uhci2ClearRootHubPortFeature()

EFI_STATUS EFIAPI Uhci2ClearRootHubPortFeature	(	IN EFI_USB2_HC_PROTOCOL *	This,
		IN UINT8	PortNumber,
		IN EFI_USB_PORT_FEATURE	PortFeature
	)

Clears a feature for the specified root hub port according to Uefi 2.0 spec.

Parameters

This	A pointer to the EFI_USB2_HC_PROTOCOL instance.
PortNumber	Specifies the root hub port whose feature is requested to be cleared.
PortFeature	Indicates the feature selector associated with the feature clear request.

Returns: EFI_SUCCESS PortFeature was cleared for the USB root hub port.; EFI_INVALID_PARAMETER PortNumber is invalid or PortFeature is invalid.; EFI_DEVICE_ERROR Can't read register.

Definition at line 499 of file Uhci.c.

◆ Uhci2ControlTransfer()

EFI_STATUS EFIAPI Uhci2ControlTransfer	(	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,
		IN OUT UINTN *	DataLength,
		IN UINTN	TimeOut,
		IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *	Translator,
		OUT UINT32 *	TransferResult
	)

Submits control transfer to a target USB device according to UEFI 2.0 spec.

Parameters

This	A pointer to the EFI_USB2_HC_PROTOCOL instance.
DeviceAddress	Target device address.
DeviceSpeed	Device speed.
MaximumPacketLength	Maximum packet size of the target endpoint.
Request	USB device request to send.
TransferDirection	Data direction of the Data stage in control transfer.
Data	Data to transmit/receive in data stage.
DataLength	Length of the data.
TimeOut	Maximum time, in microseconds, for transfer to complete.
Translator	Transaction translator to be used by this device.
TransferResult	Variable to receive the transfer result.

Returns: EFI_SUCCESS The control transfer was completed successfully.; EFI_OUT_OF_RESOURCES Failed due to lack of resource.; EFI_INVALID_PARAMETER Some parameters are invalid.; EFI_TIMEOUT Failed due to timeout.; EFI_DEVICE_ERROR Failed due to host controller or device error.

Definition at line 609 of file Uhci.c.

◆ Uhci2GetCapability()

EFI_STATUS EFIAPI Uhci2GetCapability	(	IN EFI_USB2_HC_PROTOCOL *	This,
		OUT UINT8 *	MaxSpeed,
		OUT UINT8 *	PortNumber,
		OUT UINT8 *	Is64BitCapable
	)

Retrieves capabilities of USB host controller according to UEFI 2.0 spec.

Parameters

This	A pointer to the EFI_USB2_HC_PROTOCOL instance.
MaxSpeed	A pointer to the max speed USB host controller supports.
PortNumber	A pointer to the number of root hub ports.
Is64BitCapable	A pointer to an integer to show whether USB host controller supports 64-bit memory addressing.

Returns: EFI_SUCCESS capabilities were retrieved successfully.; EFI_INVALID_PARAMETER MaxSpeed or PortNumber or Is64BitCapable is NULL.; EFI_DEVICE_ERROR An error was encountered.

Definition at line 280 of file Uhci.c.

◆ Uhci2GetRootHubPortStatus()

EFI_STATUS EFIAPI Uhci2GetRootHubPortStatus	(	IN EFI_USB2_HC_PROTOCOL *	This,
		IN UINT8	PortNumber,
		OUT EFI_USB_PORT_STATUS *	PortStatus
	)

Retrieves the current status of a USB root hub port according to UEFI 2.0 spec.

Parameters

This	A pointer to the EFI_USB2_HC_PROTOCOL.
PortNumber	The port to get status.
PortStatus	A pointer to the current port status bits and port status change bits.

Returns: EFI_SUCCESS status of the USB root hub port was returned in PortStatus.; EFI_INVALID_PARAMETER PortNumber is invalid.; EFI_DEVICE_ERROR Can't read register.

Definition at line 341 of file Uhci.c.

◆ Uhci2GetState()

EFI_STATUS EFIAPI Uhci2GetState	(	IN EFI_USB2_HC_PROTOCOL *	This,
		OUT EFI_USB_HC_STATE *	State
	)

Retrieves current state of the USB host controller according to UEFI 2.0 spec.

Parameters

This	A pointer to the EFI_USB2_HC_PROTOCOL instance.
State	Variable to receive current device state.

Returns: EFI_SUCCESS The state is returned.; EFI_INVALID_PARAMETER State is not valid.; EFI_DEVICE_ERROR Other errors.

Definition at line 129 of file Uhci.c.

◆ Uhci2IsochronousTransfer()

EFI_STATUS EFIAPI Uhci2IsochronousTransfer	(	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 isochronous transfer to a target USB device according to UEFI 2.0 spec.

Parameters

This	A pointer to the EFI_USB2_HC_PROTOCOL instance.
DeviceAddress	Target device address.
EndPointAddress	Endpoint number and direction.
DeviceSpeed	Device speed.
MaximumPacketLength	Maximum packet size of the target endpoint.
DataBuffersNumber	Number of data buffers prepared for the transfer.
Data	Array of pointers to the buffers of data.
DataLength	On input, size of the data buffer, On output, actually transferred data size.
Translator	A pointr to the transaction translator data.
TransferResult	Variable to receive transfer result.

Returns: EFI_UNSUPPORTED

Definition at line 1251 of file Uhci.c.

◆ Uhci2Reset()

EFI_STATUS EFIAPI Uhci2Reset	(	IN EFI_USB2_HC_PROTOCOL *	This,
		IN UINT16	Attributes
	)

Provides software reset for the USB host controller according to UEFI 2.0 spec.

Parameters

This	A pointer to the EFI_USB2_HC_PROTOCOL instance.
Attributes	A bit mask of the reset operation to perform. See below for a list of the supported bit mask values.

Returns: EFI_SUCCESS The reset operation succeeded.; EFI_INVALID_PARAMETER Attributes is not valid.; EFI_UNSUPPORTED This type of reset is not currently supported.; EFI_DEVICE_ERROR Other errors.

Definition at line 36 of file Uhci.c.

◆ Uhci2SetRootHubPortFeature()

EFI_STATUS EFIAPI Uhci2SetRootHubPortFeature	(	IN EFI_USB2_HC_PROTOCOL *	This,
		IN UINT8	PortNumber,
		IN EFI_USB_PORT_FEATURE	PortFeature
	)

Sets a feature for the specified root hub port according to UEFI 2.0 spec.

Parameters

This	A pointer to the EFI_USB2_HC_PROTOCOL.
PortNumber	Specifies the root hub port whose feature is requested to be set.
PortFeature	Indicates the feature selector associated with the feature set request.

Returns: EFI_SUCCESS PortFeature was set for the root port.; EFI_INVALID_PARAMETER PortNumber is invalid or PortFeature is invalid.; EFI_DEVICE_ERROR Can't read register.

Definition at line 420 of file Uhci.c.

◆ Uhci2SetState()

EFI_STATUS EFIAPI Uhci2SetState	(	IN EFI_USB2_HC_PROTOCOL *	This,
		IN EFI_USB_HC_STATE	State
	)

Sets the USB host controller to a specific state according to UEFI 2.0 spec.

Parameters

This	A pointer to the EFI_USB2_HC_PROTOCOL instance.
State	Indicates the state of the host controller that will be set.

Returns: EFI_SUCCESS Host controller was successfully placed in the state.; EFI_INVALID_PARAMETER State is invalid.; EFI_DEVICE_ERROR Failed to set the state.

Definition at line 172 of file Uhci.c.

◆ Uhci2SyncInterruptTransfer()

EFI_STATUS EFIAPI Uhci2SyncInterruptTransfer	(	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
	)

Submits synchronous interrupt transfer to an interrupt endpoint of a USB device according to UEFI 2.0 spec.

Parameters

This	A pointer to the EFI_USB2_HC_PROTOCOL instance.
DeviceAddress	Target device address.
EndPointAddress	Endpoint number and direction.
DeviceSpeed	Device speed.
MaximumPacketLength	Maximum packet size of the target endpoint.
Data	Array of pointers to the buffers of data.
DataLength	On input, size of the data buffer, On output, actually transferred data size.
DataToggle	On input, data toggle to use; On output, next data toggle.
TimeOut	Maximum time out, in microseconds.
Translator	A pointr to the transaction translator data.
TransferResult	Variable to receive transfer result.

Returns: EFI_SUCCESS The transfer was completed successfully.; EFI_OUT_OF_RESOURCES Failed due to lack of resource.; EFI_INVALID_PARAMETER Some parameters are invalid.; EFI_TIMEOUT Failed due to timeout.; EFI_DEVICE_ERROR Failed due to host controller or device error.

Definition at line 1110 of file Uhci.c.

◆ UhciAllocateDev()

USB_HC_DEV * UhciAllocateDev	(	IN EFI_PCI_IO_PROTOCOL *	PciIo,
		IN EFI_DEVICE_PATH_PROTOCOL *	DevicePath,
		IN UINT64	OriginalPciAttributes
	)

Allocate and initialize the empty UHCI device.

Parameters

PciIo	The PCIIO to use.
DevicePath	The device path of host controller.
OriginalPciAttributes	The original PCI attributes.

Returns: Allocated UHCI device. If err, return NULL.

Definition at line 1419 of file Uhci.c.

◆ UhciCleanDevUp()

VOID UhciCleanDevUp	(	IN EFI_HANDLE	Controller,
		IN EFI_USB2_HC_PROTOCOL *	This
	)

Uninstall all Uhci Interface.

Parameters

Controller	Controller handle.
This	Protocol instance pointer.

Definition at line 1525 of file Uhci.c.

◆ UhciDriverBindingStart()

EFI_STATUS EFIAPI UhciDriverBindingStart	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	Controller,
		IN EFI_DEVICE_PATH_PROTOCOL *	RemainingDevicePath
	)

Starting the Usb UHCI Driver.

Parameters

This	Protocol instance pointer.
Controller	Handle of device to test.
RemainingDevicePath	Not used.

Return values

EFI_SUCCESS	This driver supports this device.
EFI_UNSUPPORTED	This driver does not support this device.
EFI_DEVICE_ERROR	This driver cannot be started due to device Error. EFI_OUT_OF_RESOURCES- Failed due to resource shortage.

Definition at line 1609 of file Uhci.c.

◆ UhciDriverBindingStop()

EFI_STATUS EFIAPI UhciDriverBindingStop	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	Controller,
		IN UINTN	NumberOfChildren,
		IN EFI_HANDLE *	ChildHandleBuffer
	)

Stop this driver on ControllerHandle. Support stopping any child handles created by this driver.

Parameters

This	Protocol instance pointer.
Controller	Handle of device to stop driver on.
NumberOfChildren	Number of Children in the ChildHandleBuffer.
ChildHandleBuffer	List of handles for the children we need to stop.

Returns: EFI_SUCCESS; others

Definition at line 1830 of file Uhci.c.

◆ UhciDriverBindingSupported()

EFI_STATUS EFIAPI UhciDriverBindingSupported	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	Controller,
		IN EFI_DEVICE_PATH_PROTOCOL *	RemainingDevicePath
	)

Test to see if this driver supports ControllerHandle. Any ControllerHandle that has UsbHcProtocol installed will be supported.

Parameters

This	Protocol instance pointer.
Controller	Handle of device to test.
RemainingDevicePath	Not used.

Returns: EFI_SUCCESS This driver supports this device.; EFI_UNSUPPORTED This driver does not support this device.

Definition at line 1346 of file Uhci.c.

◆ UhciDriverEntryPoint()

EFI_STATUS EFIAPI UhciDriverEntryPoint	(	IN EFI_HANDLE	ImageHandle,
		IN EFI_SYSTEM_TABLE *	SystemTable
	)

Entry point for EFI drivers.

Parameters

ImageHandle	EFI_HANDLE.
SystemTable	EFI_SYSTEM_TABLE.

Return values

EFI_SUCCESS Driver is successfully loaded.

Returns: Others Failed.

Definition at line 1317 of file Uhci.c.

◆ UhciFreeDev()

VOID UhciFreeDev ( IN USB_HC_DEV * Uhc )

Free the UHCI device and release its associated resources.

Parameters

Uhc	The UHCI device to release.

Definition at line 1494 of file Uhci.c.

Variable Documentation

◆ gUhciDriverBinding

EFI_DRIVER_BINDING_PROTOCOL gUhciDriverBinding

Initial value:

= {
  UhciDriverBindingSupported,
  UhciDriverBindingStart,
  UhciDriverBindingStop,
  0x20,
  NULL,
  NULL
}

Definition at line 12 of file Uhci.c.

Functions

Variables

Detailed Description

Function Documentation

◆ UhcExitBootService()

◆ Uhci2AsyncInterruptTransfer()

◆ Uhci2AsyncIsochronousTransfer()

◆ Uhci2BulkTransfer()

◆ Uhci2ClearRootHubPortFeature()

◆ Uhci2ControlTransfer()

◆ Uhci2GetCapability()

◆ Uhci2GetRootHubPortStatus()

◆ Uhci2GetState()

◆ Uhci2IsochronousTransfer()

◆ Uhci2Reset()

◆ Uhci2SetRootHubPortFeature()

◆ Uhci2SetState()

◆ Uhci2SyncInterruptTransfer()

◆ UhciAllocateDev()

◆ UhciCleanDevUp()

◆ UhciDriverBindingStart()

◆ UhciDriverBindingStop()

◆ UhciDriverBindingSupported()

◆ UhciDriverEntryPoint()

◆ UhciFreeDev()

Variable Documentation

◆ gUhciDriverBinding