mirror of https://github.com/acidanthera/audk.git
210 lines
8.8 KiB
C
210 lines
8.8 KiB
C
/** @file
|
|
This file declares PlatfromOpRom protocols.
|
|
|
|
Copyright (c) 2007, 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: PciPlatform.h
|
|
|
|
@par Revision Reference:
|
|
This protocol is defined in PCI Platform Support Specification
|
|
Version 0.9
|
|
|
|
**/
|
|
|
|
#ifndef _PCI_PLATFORM_H_
|
|
#define _PCI_PLATFORM_H_
|
|
|
|
#include <PiDxe.h>
|
|
#include <Protocol/PciHostBridgeResourceAllocation.h>
|
|
|
|
//
|
|
// Protocol for GUID.
|
|
//
|
|
|
|
#define EFI_PCI_PLATFORM_PROTOCOL_GUID \
|
|
{ 0x7d75280, 0x27d4, 0x4d69, {0x90, 0xd0, 0x56, 0x43, 0xe2, 0x38, 0xb3, 0x41} }
|
|
|
|
typedef struct _EFI_PCI_PLATFORM_PROTOCOL EFI_PCI_PLATFORM_PROTOCOL;
|
|
|
|
typedef UINT32 EFI_PCI_PLATFORM_POLICY;
|
|
|
|
|
|
#define EFI_RESERVE_NONE_IO_ALIAS 0x0000
|
|
#define EFI_RESERVE_ISA_IO_ALIAS 0x0001
|
|
#define EFI_RESERVE_ISA_IO_NO_ALIAS 0x0002
|
|
#define EFI_RESERVE_VGA_IO_ALIAS 0x0004
|
|
#define EFI_RESERVE_VGA_IO_NO_ALIAS 0x0008
|
|
|
|
|
|
typedef enum {
|
|
ChipsetEntry,
|
|
ChipsetExit,
|
|
MaximumChipsetPhase
|
|
} EFI_PCI_CHIPSET_EXECUTION_PHASE;
|
|
|
|
|
|
/**
|
|
The PlatformNotify() function can be used to notify the platform driver so that
|
|
it can perform platform-specific actions. No specific actions are required.
|
|
Eight notification points are defined at this time. More synchronization points
|
|
may be added as required in the future. The PCI bus driver calls the platform driver
|
|
twice for every Phase-once before the PCI Host Bridge Resource Allocation Protocol
|
|
driver is notified, and once after the PCI Host Bridge Resource Allocation Protocol
|
|
driver has been notified.
|
|
This member function may not perform any error checking on the input parameters. It
|
|
also does not return any error codes. If this member function detects any error condition,
|
|
it needs to handle those errors on its own because there is no way to surface any
|
|
errors to the caller.
|
|
|
|
@param This Pointer to the EFI_PCI_PLATFORM_PROTOCOL instance.
|
|
@param HostBridge The handle of the host bridge controller.
|
|
@param Phase The phase of the PCI bus enumeration.
|
|
@param ChipsetPhase Defines the execution phase of the PCI chipset driver.
|
|
|
|
@retval EFI_SUCCESS The function completed successfully.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_PCI_PLATFORM_PHASE_NOTIFY) (
|
|
IN EFI_PCI_PLATFORM_PROTOCOL *This,
|
|
IN EFI_HANDLE HostBridge,
|
|
IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE Phase,
|
|
IN EFI_PCI_CHIPSET_EXECUTION_PHASE ChipsetPhase
|
|
)
|
|
;
|
|
|
|
|
|
/**
|
|
The PlatformPrepController() function can be used to notify the platform driver so that
|
|
it can perform platform-specific actions. No specific actions are required.
|
|
Several notification points are defined at this time. More synchronization points may be
|
|
added as required in the future. The PCI bus driver calls the platform driver twice for
|
|
every PCI controller-once before the PCI Host Bridge Resource Allocation Protocol driver
|
|
is notified, and once after the PCI Host Bridge Resource Allocation Protocol driver has
|
|
been notified.
|
|
This member function may not perform any error checking on the input parameters. It also
|
|
does not return any error codes. If this member function detects any error condition, it
|
|
needs to handle those errors on its own because there is no way to surface any errors to
|
|
the caller.
|
|
|
|
@param This Pointer to the EFI_PCI_PLATFORM_PROTOCOL instance.
|
|
@param HostBridge The associated PCI host bridge handle.
|
|
@param RootBridge The associated PCI root bridge handle.
|
|
@param PciAddress The address of the PCI device on the PCI bus.
|
|
@param Phase The phase of the PCI controller enumeration.
|
|
@param ChipsetPhase Defines the execution phase of the PCI chipset driver.
|
|
|
|
@retval EFI_SUCCESS The function completed successfully.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_PCI_PLATFORM_PREPROCESS_CONTROLLER) (
|
|
IN EFI_PCI_PLATFORM_PROTOCOL *This,
|
|
IN EFI_HANDLE HostBridge,
|
|
IN EFI_HANDLE RootBridge,
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS PciAddress,
|
|
IN EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE Phase,
|
|
IN EFI_PCI_CHIPSET_EXECUTION_PHASE ChipsetPhase
|
|
)
|
|
;
|
|
|
|
|
|
/**
|
|
The GetPlatformPolicy() function retrieves the platform policy regarding PCI
|
|
enumeration. The PCI bus driver and the PCI Host Bridge Resource Allocation Protocol
|
|
driver can call this member function to retrieve the policy.
|
|
|
|
@param This Pointer to the EFI_PCI_PLATFORM_PROTOCOL instance.
|
|
@param PciPolicy The platform policy with respect to VGA and ISA aliasing.
|
|
|
|
@retval EFI_SUCCESS The function completed successfully.
|
|
@retval EFI_INVALID_PARAMETER PciPolicy is NULL.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_PCI_PLATFORM_GET_PLATFORM_POLICY) (
|
|
IN EFI_PCI_PLATFORM_PROTOCOL *This,
|
|
OUT EFI_PCI_PLATFORM_POLICY *PciPolicy
|
|
)
|
|
;
|
|
|
|
|
|
/**
|
|
The GetPciRom() function gets the PCI device's option ROM from a platform-specific location.
|
|
The option ROM will be loaded into memory. This member function is used to return an image
|
|
that is packaged as a PCI 2.2 option ROM. The image may contain both legacy and EFI option
|
|
ROMs. See the EFI 1.10 Specification for details. This member function can be used to return
|
|
option ROM images for embedded controllers. Option ROMs for embedded controllers are typically
|
|
stored in platform-specific storage, and this member function can retrieve it from that storage
|
|
and return it to the PCI bus driver. The PCI bus driver will call this member function before
|
|
scanning the ROM that is attached to any controller, which allows a platform to specify a ROM
|
|
image that is different from the ROM image on a PCI card.
|
|
|
|
@param This Pointer to the EFI_PCI_PLATFORM_PROTOCOL instance.
|
|
@param PciHandle The handle of the PCI device.
|
|
@param RomImage If the call succeeds, the pointer to the pointer to the option ROM image.
|
|
Otherwise, this field is undefined. The memory for RomImage is allocated
|
|
by EFI_PCI_PLATFORM_PROTOCOL.GetPciRom() using the EFI Boot Service AllocatePool().
|
|
It is the caller's responsibility to free the memory using the EFI Boot Service
|
|
FreePool(), when the caller is done with the option ROM.
|
|
@param RomSize If the call succeeds, a pointer to the size of the option ROM size. Otherwise,
|
|
this field is undefined.
|
|
|
|
@retval EFI_SUCCESS The option ROM was available for this device and loaded into memory.
|
|
@retval EFI_NOT_FOUND No option ROM was available for this device.
|
|
@retval EFI_OUT_OF_RESOURCES No memory was available to load the option ROM.
|
|
@retval EFI_DEVICE_ERROR An error occurred in getting the option ROM.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_PCI_PLATFORM_GET_PCI_ROM) (
|
|
IN EFI_PCI_PLATFORM_PROTOCOL *This,
|
|
IN EFI_HANDLE PciHandle,
|
|
OUT VOID **RomImage,
|
|
OUT UINTN *RomSize
|
|
)
|
|
;
|
|
|
|
/**
|
|
@par Protocol Description:
|
|
This protocol provides the interface between the PCI bus driver/PCI Host
|
|
Bridge Resource Allocation driver and a platform-specific driver to describe
|
|
the unique features of a platform.
|
|
|
|
@param PlatformNotify
|
|
The notification from the PCI bus enumerator to the platform that it is
|
|
about to enter a certain phase during the enumeration process.
|
|
|
|
@param PlatformPrepController
|
|
The notification from the PCI bus enumerator to the platform for each PCI
|
|
controller at several predefined points during PCI controller initialization.
|
|
|
|
@param GetPlatformPolicy
|
|
Retrieves the platform policy regarding enumeration.
|
|
|
|
@param GetPciRom
|
|
Gets the PCI device's option ROM from a platform-specific location.
|
|
|
|
**/
|
|
struct _EFI_PCI_PLATFORM_PROTOCOL {
|
|
EFI_PCI_PLATFORM_PHASE_NOTIFY PhaseNotify;
|
|
EFI_PCI_PLATFORM_PREPROCESS_CONTROLLER PlatformPrepController;
|
|
EFI_PCI_PLATFORM_GET_PLATFORM_POLICY GetPlatformPolicy;
|
|
EFI_PCI_PLATFORM_GET_PCI_ROM GetPciRom;
|
|
};
|
|
|
|
extern EFI_GUID gEfiPciPlatformProtocolGuid;
|
|
|
|
#endif
|