mirror of https://github.com/acidanthera/audk.git
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/** @file
|
|
Work with PCI capabilities in PCI config space -- internal type definitions.
|
|
|
|
Copyright (C) 2018, Red Hat, Inc.
|
|
|
|
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.
|
|
**/
|
|
|
|
#ifndef __BASE_PCI_CAP_LIB_H__
|
|
#define __BASE_PCI_CAP_LIB_H__
|
|
|
|
#include <Library/OrderedCollectionLib.h>
|
|
|
|
#include <Library/PciCapLib.h>
|
|
|
|
//
|
|
// Structure that uniquely identifies a capability instance and serves as key
|
|
// for insertion and lookup.
|
|
//
|
|
typedef struct {
|
|
PCI_CAP_DOMAIN Domain;
|
|
UINT16 CapId;
|
|
UINT16 Instance;
|
|
} PCI_CAP_KEY;
|
|
|
|
//
|
|
// In Instance==0 PCI_CAP objects, store NumInstances directly. In Instance>0
|
|
// PCI_CAP objects, link Instance#0 of the same (Domain, CapId). This way
|
|
// NumInstances needs maintenance in one object only, per (Domain, CapId) pair.
|
|
//
|
|
typedef union {
|
|
UINT16 NumInstances;
|
|
PCI_CAP *InstanceZero;
|
|
} PCI_CAP_NUM_INSTANCES;
|
|
|
|
//
|
|
// Complete the incomplete PCI_CAP structure here.
|
|
//
|
|
struct PCI_CAP {
|
|
PCI_CAP_KEY Key;
|
|
PCI_CAP_NUM_INSTANCES NumInstancesUnion;
|
|
UINT16 Offset;
|
|
UINT16 MaxSizeHint;
|
|
UINT8 Version;
|
|
};
|
|
|
|
//
|
|
// Complete the incomplete PCI_CAP_LIST structure here.
|
|
//
|
|
struct PCI_CAP_LIST {
|
|
ORDERED_COLLECTION *Capabilities;
|
|
};
|
|
|
|
#endif // __BASE_PCI_CAP_LIB_H__
|