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