/** @file
  Pch Usb Pei Init

@copyright
  Copyright (c) 2009 - 2012 Intel Corporation. All rights reserved
  This software and associated documentation (if any) is furnished
  under a license and may only be used or copied in accordance
  with the terms of the license. Except as permitted by such
  license, no part of this software or documentation may be
  reproduced, stored in a retrieval system, or transmitted in any
  form or by any means without the express written consent of
  Intel Corporation.

  This file contains an 'Intel Peripheral Driver' and uniquely
  identified as "Intel Reference Module" and is
  licensed for Intel CPUs and chipsets under the terms of your
  license agreement with Intel or your vendor.  This file may
  be modified by the user, subject to additional terms of the
  license agreement
**/
#include "PchUsb.h"

/**
  Initialize PCH USB PEIM

  @param[in] FfsHeader            Not used.
  @param[in] PeiServices          General purpose services available to every PEIM.

  @retval EFI_SUCCESS             The PCH USB PEIM is initialized successfully
  @retval Others                  All other error conditions encountered result in an ASSERT.
**/
EFI_STATUS
InitializePchUsb (
  IN EFI_FFS_FILE_HEADER       *FfsHeader,
  IN EFI_PEI_SERVICES          **PeiServices
  )
{
  EFI_STATUS          Status;
  PCH_USB_POLICY_PPI  *UsbPolicyPpi;

  DEBUG ((EFI_D_INFO, "InitializePchUsb() Start\n"));

  ///
  /// Locate UsbPolicy PPI
  ///
  Status = (**PeiServices).LocatePpi (
                            PeiServices,
                            &gPchUsbPolicyPpiGuid,
                            0,
                            NULL,
                            (VOID **) &UsbPolicyPpi
                            );
  ASSERT_EFI_ERROR (Status);

  if (Status == EFI_SUCCESS) {
    ///
    /// Enable USB controller and install PeiUsbControllerPpi for USB recovery function
    ///
    switch (UsbPolicyPpi->Mode) {
    case EHCI_MODE:
      DEBUG ((EFI_D_ERROR, "Usb Recovery Mode : EHCI !\n"));
      DEBUG ((EFI_D_ERROR, "EhciMemBaseAddr:%0x!\n", UsbPolicyPpi->EhciMemBaseAddr));
      DEBUG ((EFI_D_ERROR, "EhciMemLength:%0x!\n", UsbPolicyPpi->EhciMemLength));
      InitForEHCI (PeiServices, UsbPolicyPpi);
      break;

    default:
      ASSERT_EFI_ERROR (EFI_INVALID_PARAMETER);
      break;
    }
  }

  DEBUG ((EFI_D_INFO, "InitializePchUsb() End\n"));

  return Status;

}