PeiUsbLib.c File Reference

#include "UsbPeim.h"
#include "PeiUsbLib.h"

Go to the source code of this file.

Functions
EFI_STATUS	PeiUsbClearDeviceFeature (IN EFI_PEI_SERVICES **PeiServices, IN PEI_USB_IO_PPI *UsbIoPpi, IN EFI_USB_RECIPIENT Recipient, IN UINT16 Value, IN UINT16 Target)
EFI_STATUS	PeiUsbClearEndpointHalt (IN EFI_PEI_SERVICES **PeiServices, IN PEI_USB_IO_PPI *UsbIoPpi, IN UINT8 EndpointAddress)

Detailed Description

Common Library for PEI USB.

Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file PeiUsbLib.c.

Function Documentation

PeiUsbClearDeviceFeature()

EFI_STATUS PeiUsbClearDeviceFeature	(	IN EFI_PEI_SERVICES **	PeiServices,
		IN PEI_USB_IO_PPI *	UsbIoPpi,
		IN EFI_USB_RECIPIENT	Recipient,
		IN UINT16	Value,
		IN UINT16	Target
	)

Clear a given usb feature.

Parameters

PeiServices	General-purpose services that are available to every PEIM.
UsbIoPpi	Indicates the PEI_USB_IO_PPI instance.
Recipient	The recipient of ClearFeature Request, should be one of Device/Interface/Endpoint.
Value	Request Value.
Target	Request Index.

Return values

EFI_SUCCESS	Usb feature is cleared successfully.
EFI_DEVICE_ERROR	Cannot clear the usb feature due to a hardware error.
Others	Other failure occurs.

Definition at line 28 of file PeiUsbLib.c.

PeiUsbClearEndpointHalt()

EFI_STATUS PeiUsbClearEndpointHalt	(	IN EFI_PEI_SERVICES **	PeiServices,
		IN PEI_USB_IO_PPI *	UsbIoPpi,
		IN UINT8	EndpointAddress
	)

Clear Endpoint Halt.

Parameters

PeiServices	General-purpose services that are available to every PEIM.
UsbIoPpi	Indicates the PEI_USB_IO_PPI instance.
EndpointAddress	The endpoint address.

Return values

EFI_SUCCESS	Endpoint halt is cleared successfully.
EFI_DEVICE_ERROR	Cannot clear the endpoint halt status due to a hardware error.
Others	Other failure occurs.

Definition at line 83 of file PeiUsbLib.c.