Porting Duet module from EDKI to EDKII

[mirror_edk2.git] / DuetPkg / PciRootBridgeNoEnumerationDxe / PcatPciRootBridgeDevicePath.c

/*++\r
\r
Copyright (c) 2005 - 2006, Intel Corporation                                                         \r
All rights reserved. This program and the accompanying materials                          \r
are licensed and made available under the terms and conditions of the BSD License         \r
which accompanies this distribution.  The 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
Module Name:\r
    PcatPciRootBridgeDevicePath.c\r
    \r
Abstract:\r
\r
    EFI PCAT PCI Root Bridge Device Path Protocol\r
\r
Revision History\r
\r
--*/\r
\r
#include "PcatPciRootBridge.h"\r
\r
//\r
// Static device path declarations for this driver.\r
//\r
\r
typedef struct {\r
  ACPI_HID_DEVICE_PATH              AcpiDevicePath;\r
  EFI_DEVICE_PATH_PROTOCOL          EndDevicePath;\r
} EFI_PCI_ROOT_BRIDGE_DEVICE_PATH;\r
\r
static EFI_PCI_ROOT_BRIDGE_DEVICE_PATH mEfiPciRootBridgeDevicePath = {\r
  {\r
    ACPI_DEVICE_PATH,\r
    ACPI_DP,\r
    (UINT8) (sizeof(ACPI_HID_DEVICE_PATH)),\r
    (UINT8) ((sizeof(ACPI_HID_DEVICE_PATH)) >> 8),\r
    EISA_PNP_ID(0x0A03),\r
    0\r
  },\r
  {\r
    END_DEVICE_PATH_TYPE,\r
    END_ENTIRE_DEVICE_PATH_SUBTYPE,\r
    END_DEVICE_PATH_LENGTH,\r
    0\r
  }\r
};\r
\r
EFI_STATUS\r
PcatRootBridgeDevicePathConstructor (\r
  IN EFI_DEVICE_PATH_PROTOCOL  **Protocol,\r
  IN UINTN                     RootBridgeNumber,\r
  IN BOOLEAN                   IsPciExpress\r
  )\r
/*++\r
\r
Routine Description:\r
\r
    Construct the device path protocol\r
\r
Arguments:\r
\r
    Protocol - protocol to initialize\r
    \r
Returns:\r
\r
    None\r
\r
--*/\r
{\r
  ACPI_HID_DEVICE_PATH  *AcpiDevicePath;\r
 \r
  *Protocol = DuplicateDevicePath((EFI_DEVICE_PATH_PROTOCOL *)(&mEfiPciRootBridgeDevicePath));\r
\r
  AcpiDevicePath = (ACPI_HID_DEVICE_PATH *)(*Protocol);\r
 \r
  AcpiDevicePath->UID = (UINT32)RootBridgeNumber;\r
\r
  if (IsPciExpress) {\r
    AcpiDevicePath->HID = EISA_PNP_ID(0x0A08);\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r