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