1 /* $FreeBSD$ */ 2 /** @file 3 EDID Active Protocol from the UEFI 2.0 specification. 4 5 Placed on the video output device child handle that is actively displaying output. 6 7 Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR> 8 This program and the accompanying materials 9 are licensed and made available under the terms and conditions of the BSD License 10 which accompanies this distribution. The full text of the license may be found at 11 http://opensource.org/licenses/bsd-license.php 12 13 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 14 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 15 16 **/ 17 18 #ifndef __EDID_ACTIVE_H__ 19 #define __EDID_ACTIVE_H__ 20 21 #define EFI_EDID_ACTIVE_PROTOCOL_GUID \ 22 { \ 23 0xbd8c1056, 0x9f36, 0x44ec, {0x92, 0xa8, 0xa6, 0x33, 0x7f, 0x81, 0x79, 0x86 } \ 24 } 25 26 /// 27 /// This protocol contains the EDID information for an active video output device. This is either the 28 /// EDID information retrieved from the EFI_EDID_OVERRIDE_PROTOCOL if an override is 29 /// available, or an identical copy of the EDID information from the 30 /// EFI_EDID_DISCOVERED_PROTOCOL if no overrides are available. 31 /// 32 typedef struct { 33 /// 34 /// The size, in bytes, of the Edid buffer. 0 if no EDID information 35 /// is available from the video output device. Otherwise, it must be a 36 /// minimum of 128 bytes. 37 /// 38 UINT32 SizeOfEdid; 39 40 /// 41 /// A pointer to a read-only array of bytes that contains the EDID 42 /// information for an active video output device. This pointer is 43 /// NULL if no EDID information is available for the video output 44 /// device. The minimum size of a valid Edid buffer is 128 bytes. 45 /// EDID information is defined in the E-EDID EEPROM 46 /// specification published by VESA (www.vesa.org). 47 /// 48 UINT8 *Edid; 49 } EFI_EDID_ACTIVE_PROTOCOL; 50 51 extern EFI_GUID gEfiEdidActiveProtocolGuid; 52 53 #endif 54