MdeModulePkg UsbBotPei: Remove redundant functions

[mirror_edk2.git] / MdeModulePkg / Bus / Usb / UsbBotPei / PeiUsbLib.c

/** @file\r
Common Libarary  for PEI USB.\r
\r
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions\r
of the BSD License which accompanies this distribution.  The\r
full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include "UsbPeim.h"\r
#include "PeiUsbLib.h"\r
\r
\r
/**\r
  Clear a given usb feature.\r
\r
  @param  PeiServices       General-purpose services that are available to every PEIM.\r
  @param  UsbIoPpi          Indicates the PEI_USB_IO_PPI instance.\r
  @param  Recipient         The recipient of ClearFeature Request, should be one of Device/Interface/Endpoint.\r
  @param  Value             Request Value.\r
  @param  Target            Request Index.\r
\r
  @retval EFI_SUCCESS       Usb feature is cleared successfully.\r
  @retval EFI_DEVICE_ERROR  Cannot clear the usb feature due to a hardware error.\r
  @retval Others            Other failure occurs.\r
\r
**/\r
EFI_STATUS\r
PeiUsbClearDeviceFeature (\r
  IN EFI_PEI_SERVICES         **PeiServices,\r
  IN PEI_USB_IO_PPI           *UsbIoPpi,\r
  IN EFI_USB_RECIPIENT        Recipient,\r
  IN UINT16                   Value,\r
  IN UINT16                   Target\r
  )\r
{\r
  EFI_USB_DEVICE_REQUEST  DevReq;\r
\r
  ASSERT (UsbIoPpi != NULL);\r
\r
  switch (Recipient) {\r
  case EfiUsbDevice:\r
    DevReq.RequestType = USB_DEV_CLEAR_FEATURE_REQ_TYPE_D;\r
    break;\r
\r
  case EfiUsbInterface:\r
    DevReq.RequestType = USB_DEV_CLEAR_FEATURE_REQ_TYPE_I;\r
    break;\r
\r
  case EfiUsbEndpoint:\r
    DevReq.RequestType = USB_DEV_CLEAR_FEATURE_REQ_TYPE_E;\r
    break;\r
  }\r
\r
  DevReq.Request      = USB_DEV_CLEAR_FEATURE;\r
  DevReq.Value        = Value;\r
  DevReq.Index        = Target;\r
  DevReq.Length       = 0;\r
\r
  return UsbIoPpi->UsbControlTransfer (\r
                     PeiServices,\r
                     UsbIoPpi,\r
                     &DevReq,\r
                     EfiUsbNoData,\r
                     PcdGet32 (PcdUsbTransferTimeoutValue),\r
                     NULL,\r
                     0\r
                     );\r
}\r
\r
\r
/**\r
  Clear Endpoint Halt.\r
\r
  @param  PeiServices       General-purpose services that are available to every PEIM.\r
  @param  UsbIoPpi          Indicates the PEI_USB_IO_PPI instance.\r
  @param  EndpointAddress   The endpoint address.\r
\r
  @retval EFI_SUCCESS       Endpoint halt is cleared successfully.\r
  @retval EFI_DEVICE_ERROR  Cannot clear the endpoint halt status due to a hardware error.\r
  @retval Others            Other failure occurs.\r
\r
**/\r
EFI_STATUS\r
PeiUsbClearEndpointHalt (\r
  IN EFI_PEI_SERVICES         **PeiServices,\r
  IN PEI_USB_IO_PPI           *UsbIoPpi,\r
  IN UINT8                    EndpointAddress\r
  )\r
{\r
  EFI_STATUS                    Status;\r
  EFI_USB_INTERFACE_DESCRIPTOR  *InterfaceDesc;\r
  EFI_USB_ENDPOINT_DESCRIPTOR   *EndpointDescriptor;\r
  UINT8                         EndpointIndex;\r
\r
\r
  //\r
  // Check its interface\r
  //\r
  Status = UsbIoPpi->UsbGetInterfaceDescriptor (\r
                      PeiServices,\r
                      UsbIoPpi,\r
                      &InterfaceDesc\r
                      );\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
  for (EndpointIndex = 0; EndpointIndex < InterfaceDesc->NumEndpoints; EndpointIndex++) {\r
    Status = UsbIoPpi->UsbGetEndpointDescriptor (PeiServices, UsbIoPpi, EndpointIndex, &EndpointDescriptor);\r
    if (EFI_ERROR (Status)) {\r
      return EFI_INVALID_PARAMETER;\r
    }\r
\r
    if (EndpointDescriptor->EndpointAddress == EndpointAddress) {\r
      break;\r
    }\r
  }\r
\r
  if (EndpointIndex == InterfaceDesc->NumEndpoints) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  Status = PeiUsbClearDeviceFeature (\r
            PeiServices,\r
            UsbIoPpi,\r
            EfiUsbEndpoint,\r
            EfiUsbEndpointHalt,\r
            EndpointAddress\r
            );\r
\r
  return Status;\r
}\r
\r
\r