| /** @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, |
| OUT UINTN *EdidSize, |
| 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 |