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https://github.com/CloverHackyColor/CloverBootloader.git
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135 lines
3.6 KiB
C
135 lines
3.6 KiB
C
/** @file
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Common Libarary for PEI USB.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "UsbPeim.h"
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#include "PeiUsbLib.h"
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/**
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Clear a given usb feature.
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@param PeiServices General-purpose services that are available to every PEIM.
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@param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.
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@param Recipient The recipient of ClearFeature Request, should be one of Device/Interface/Endpoint.
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@param Value Request Value.
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@param Target Request Index.
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@retval EFI_SUCCESS Usb feature is cleared successfully.
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@retval EFI_DEVICE_ERROR Cannot clear the usb feature due to a hardware error.
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@retval Others Other failure occurs.
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**/
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EFI_STATUS
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PeiUsbClearDeviceFeature (
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IN EFI_PEI_SERVICES **PeiServices,
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IN PEI_USB_IO_PPI *UsbIoPpi,
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IN EFI_USB_RECIPIENT Recipient,
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IN UINT16 Value,
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IN UINT16 Target
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)
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{
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EFI_USB_DEVICE_REQUEST DevReq;
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ASSERT (UsbIoPpi != NULL);
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switch (Recipient) {
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case EfiUsbDevice:
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DevReq.RequestType = USB_DEV_CLEAR_FEATURE_REQ_TYPE_D;
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break;
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case EfiUsbInterface:
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DevReq.RequestType = USB_DEV_CLEAR_FEATURE_REQ_TYPE_I;
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break;
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case EfiUsbEndpoint:
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DevReq.RequestType = USB_DEV_CLEAR_FEATURE_REQ_TYPE_E;
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break;
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}
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DevReq.Request = USB_DEV_CLEAR_FEATURE;
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DevReq.Value = Value;
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DevReq.Index = Target;
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DevReq.Length = 0;
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return UsbIoPpi->UsbControlTransfer (
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PeiServices,
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UsbIoPpi,
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&DevReq,
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EfiUsbNoData,
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PcdGet32 (PcdUsbTransferTimeoutValue),
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NULL,
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0
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);
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}
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/**
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Clear Endpoint Halt.
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@param PeiServices General-purpose services that are available to every PEIM.
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@param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.
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@param EndpointAddress The endpoint address.
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@retval EFI_SUCCESS Endpoint halt is cleared successfully.
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@retval EFI_DEVICE_ERROR Cannot clear the endpoint halt status due to a hardware error.
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@retval Others Other failure occurs.
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**/
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EFI_STATUS
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PeiUsbClearEndpointHalt (
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IN EFI_PEI_SERVICES **PeiServices,
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IN PEI_USB_IO_PPI *UsbIoPpi,
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IN UINT8 EndpointAddress
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)
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{
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EFI_STATUS Status;
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EFI_USB_INTERFACE_DESCRIPTOR *InterfaceDesc;
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EFI_USB_ENDPOINT_DESCRIPTOR *EndpointDescriptor;
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UINT8 EndpointIndex;
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//
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// Check its interface
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//
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Status = UsbIoPpi->UsbGetInterfaceDescriptor (
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PeiServices,
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UsbIoPpi,
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&InterfaceDesc
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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for (EndpointIndex = 0; EndpointIndex < InterfaceDesc->NumEndpoints; EndpointIndex++) {
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Status = UsbIoPpi->UsbGetEndpointDescriptor (PeiServices, UsbIoPpi, EndpointIndex, &EndpointDescriptor);
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if (EFI_ERROR (Status)) {
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return EFI_INVALID_PARAMETER;
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}
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if (EndpointDescriptor->EndpointAddress == EndpointAddress) {
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break;
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}
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}
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if (EndpointIndex == InterfaceDesc->NumEndpoints) {
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return EFI_INVALID_PARAMETER;
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}
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Status = PeiUsbClearDeviceFeature (
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PeiServices,
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UsbIoPpi,
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EfiUsbEndpoint,
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EfiUsbEndpointHalt,
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EndpointAddress
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);
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return Status;
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}
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