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/*++
Copyright (c) 2005 - 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
PcatPciRootBridgeDevicePath.c
Abstract:
EFI PCAT PCI Root Bridge Device Path Protocol
Revision History
--*/
#include "PcatPciRootBridge.h"
//
// Static device path declarations for this driver.
//
typedef struct {
ACPI_HID_DEVICE_PATH AcpiDevicePath;
EFI_DEVICE_PATH_PROTOCOL EndDevicePath;
} EFI_PCI_ROOT_BRIDGE_DEVICE_PATH;
static EFI_PCI_ROOT_BRIDGE_DEVICE_PATH mEfiPciRootBridgeDevicePath = {
{
ACPI_DEVICE_PATH,
ACPI_DP,
(UINT8) (sizeof(ACPI_HID_DEVICE_PATH)),
(UINT8) ((sizeof(ACPI_HID_DEVICE_PATH)) >> 8),
EISA_PNP_ID(0x0A03),
0
},
{
END_DEVICE_PATH_TYPE,
END_ENTIRE_DEVICE_PATH_SUBTYPE,
END_DEVICE_PATH_LENGTH,
0
}
};
EFI_STATUS
PcatRootBridgeDevicePathConstructor (
IN EFI_DEVICE_PATH_PROTOCOL **Protocol,
IN UINTN RootBridgeNumber,
IN BOOLEAN IsPciExpress
)
/*++
Routine Description:
Construct the device path protocol
Arguments:
Protocol - protocol to initialize
Returns:
None
--*/
{
ACPI_HID_DEVICE_PATH *AcpiDevicePath;
*Protocol = DuplicateDevicePath((EFI_DEVICE_PATH_PROTOCOL *)(&mEfiPciRootBridgeDevicePath));
AcpiDevicePath = (ACPI_HID_DEVICE_PATH *)(*Protocol);
AcpiDevicePath->UID = (UINT32)RootBridgeNumber;
if (IsPciExpress) {
AcpiDevicePath->HID = EISA_PNP_ID(0x0A08);
}
return EFI_SUCCESS;
}
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