mirror of https://github.com/acidanthera/audk.git
62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/** @file
|
|
EDID Override Protocol from the UEFI 2.0 specification.
|
|
|
|
Allow platform to provide EDID information to the producer of the Graphics Output
|
|
protocol.
|
|
|
|
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#ifndef __EDID_OVERRIDE_H__
|
|
#define __EDID_OVERRIDE_H__
|
|
|
|
#define EFI_EDID_OVERRIDE_PROTOCOL_GUID \
|
|
{ \
|
|
0x48ecb431, 0xfb72, 0x45c0, {0xa9, 0x22, 0xf4, 0x58, 0xfe, 0x4, 0xb, 0xd5 } \
|
|
}
|
|
|
|
typedef struct _EFI_EDID_OVERRIDE_PROTOCOL EFI_EDID_OVERRIDE_PROTOCOL;
|
|
|
|
#define EFI_EDID_OVERRIDE_DONT_OVERRIDE 0x01
|
|
#define EFI_EDID_OVERRIDE_ENABLE_HOT_PLUG 0x02
|
|
|
|
/**
|
|
Returns policy information and potentially a replacement EDID for the specified video output device.
|
|
|
|
@param This The EFI_EDID_OVERRIDE_PROTOCOL instance.
|
|
@param ChildHandle A child handle produced by the Graphics Output EFI
|
|
driver that represents a video output device.
|
|
@param Attributes The attributes associated with ChildHandle video output device.
|
|
@param EdidSize A pointer to the size, in bytes, of the Edid buffer.
|
|
@param Edid A pointer to callee allocated buffer that contains the EDID that
|
|
should be used for ChildHandle. A value of NULL
|
|
represents no EDID override for ChildHandle.
|
|
|
|
@retval EFI_SUCCESS Valid overrides returned for ChildHandle.
|
|
@retval EFI_UNSUPPORTED ChildHandle has no overrides.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_EDID_OVERRIDE_PROTOCOL_GET_EDID)(
|
|
IN EFI_EDID_OVERRIDE_PROTOCOL *This,
|
|
IN EFI_HANDLE *ChildHandle,
|
|
OUT UINT32 *Attributes,
|
|
IN OUT UINTN *EdidSize,
|
|
IN OUT UINT8 **Edid
|
|
);
|
|
|
|
///
|
|
/// This protocol is produced by the platform to allow the platform to provide
|
|
/// EDID information to the producer of the Graphics Output protocol.
|
|
///
|
|
struct _EFI_EDID_OVERRIDE_PROTOCOL {
|
|
EFI_EDID_OVERRIDE_PROTOCOL_GET_EDID GetEdid;
|
|
};
|
|
|
|
extern EFI_GUID gEfiEdidOverrideProtocolGuid;
|
|
|
|
#endif
|