MdeModulePkg/Bus/Pci/PciBusDxe/PciPowerManagement.h

   1 /** @file
   2   Power management support functions declaration for PCI Bus module.
   3
   4 Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
   5 SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #ifndef _EFI_PCI_POWER_MANAGEMENT_H_
  10 #define _EFI_PCI_POWER_MANAGEMENT_H_
  11
  12 /**
  13   This function is intended to turn off PWE assertion and
  14   put the device to D0 state if the device supports
  15   PCI Power Management.
  16
  17   @param PciIoDevice      PCI device instance.
  18
  19   @retval EFI_UNSUPPORTED PCI Device does not support power management.
  20   @retval EFI_SUCCESS     Turned off PWE successfully.
  21
  22 **/
  23 EFI_STATUS
  24 ResetPowerManagementFeature (
  25   IN PCI_IO_DEVICE *PciIoDevice
  26   );
  27
  28 #endif