mirror of https://github.com/acidanthera/audk.git
214 lines
6.2 KiB
C
214 lines
6.2 KiB
C
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/*++
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Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved
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SPDX-License-Identifier: BSD-2-Clause-Patent
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Module Name:
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IgdOpRegion.h
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Abstract:
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This file is part of the IGD OpRegion Implementation. The IGD OpRegion is
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an interface between system BIOS, ASL code, and Graphics drivers.
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Supporting Specifiction: IGD OpRegion/Software SCI SPEC
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Note: Data structures defined in this protocol are packed not naturally
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aligned.
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GUID forms:
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{CDC5DDDF-E79D-41ec-A9B0-6565490DB9D3}
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(0xcdc5dddf, 0xe79d, 0x41ec, 0xa9, 0xb0, 0x65, 0x65, 0x49, 0xd, 0xb9, 0xd3);
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Acronyms:
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NVS: ACPI Non Volatile Storage
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OpRegion: ACPI Operational Region
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VBT: Video BIOS Table (OEM customizable data)
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--*/
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#ifndef _IGD_OPREGION_PROTOCOL_H_
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#define _IGD_OPREGION_PROTOCOL_H_
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//
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// OpRegion / Software SCI protocol GUID
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//
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#define IGD_OPREGION_PROTOCOL_GUID \
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{ \
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0xcdc5dddf, 0xe79d, 0x41ec, 0xa9, 0xb0, 0x65, 0x65, 0x49, 0xd, 0xb9, 0xd3 \
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}
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//
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// Extern the GUID for protocol users.
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//
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extern EFI_GUID gIgdOpRegionProtocolGuid;
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//
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// Forward reference for pure ANSI compatability
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//
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typedef struct _IGD_OPREGION_PROTOCOL IGD_OPREGION_PROTOCOL;
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//
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// Protocol data definitions
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//
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//
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// OpRegion structures:
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// Sub-structures define the different parts of the OpRegion followed by the
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// main structure representing the entire OpRegion.
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//
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// Note: These structures are packed to 1 byte offsets because the exact
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// data location is requred by the supporting design specification due to
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// the fact that the data is used by ASL and Graphics driver code compiled
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// separatly.
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//
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//
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// OpRegion header (mailbox 0) structure and #defines.
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//
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#pragma pack (1)
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typedef struct {
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CHAR8 SIGN[0x10]; // 0 OpRegion signature
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UINT32 SIZE; // 0x10 OpRegion size
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UINT32 OVER; // 0x14 OpRegion structure version
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UINT8 SVER[0x20]; // 0x18 System BIOS build version
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UINT8 VVER[0x10]; // 0x38 Video BIOS build version
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UINT8 GVER[0x10]; // 0x48 Graphic driver build version
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UINT32 MBOX; // 0x58 Mailboxes supported
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UINT32 DMOD; // 0x5C Driver Model
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UINT32 PCON; // 0x60 Platform Configuration Info
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CHAR8 GOPV[0x20]; // 0X64 GOP build version
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UINT8 RSV[0x7C]; // Reserved
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} OPREGION_HEADER;
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#pragma pack ()
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//
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// OpRegion mailbox 1 (public ACPI Methods).
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//
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#pragma pack (1)
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typedef struct {
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UINT32 DRDY; // 0 Driver readiness
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UINT32 CSTS; // 4 Status
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UINT32 CEVT; // 8 Current event
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UINT8 RM11[0x14]; // 12 Reserved
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UINT32 DIDL; // 32 Supported display devices list
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UINT32 DDL2; // 8 Devices.
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UINT32 DDL3;
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UINT32 DDL4;
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UINT32 DDL5;
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UINT32 DDL6;
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UINT32 DDL7;
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UINT32 DDL8;
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UINT32 CPDL; // 64 Currently present display devices list
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UINT32 CPL2; // 8 Devices.
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UINT32 CPL3;
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UINT32 CPL4;
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UINT32 CPL5;
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UINT32 CPL6;
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UINT32 CPL7;
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UINT32 CPL8;
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UINT32 CADL; // 96 Currently active display devices list
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UINT32 CAL2; // 8 Devices.
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UINT32 CAL3;
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UINT32 CAL4;
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UINT32 CAL5;
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UINT32 CAL6;
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UINT32 CAL7;
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UINT32 CAL8;
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UINT32 NADL; // 128 Next active device list
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UINT32 NDL2; // 8 Devices.
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UINT32 NDL3;
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UINT32 NDL4;
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UINT32 NDL5;
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UINT32 NDL6;
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UINT32 NDL7;
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UINT32 NDL8;
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UINT32 ASLP; // 160 ASL sleep timeout
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UINT32 TIDX; // 164 Toggle table index
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UINT32 CHPD; // 168 Current hot plug enable indicator
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UINT32 CLID; // 172 Current lid state indicator
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UINT32 CDCK; // 176 Current docking state indicator
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UINT32 SXSW; // 180 Display Switch notification on Sx State resume
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UINT32 EVTS; // 184 Events supported by ASL
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UINT32 CNOT; // 188 Current OS Notification
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UINT32 NRDY; // 192 Reasons for DRDY = 0
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UINT8 RM12[0x3C]; // 196 Reserved
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} OPREGION_MBOX1;
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#pragma pack ()
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//
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// OpRegion mailbox 2 (Software SCI Interface).
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//
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#pragma pack (1)
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typedef struct {
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UINT32 SCIC; // 0 Software SCI function number parameters
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UINT32 PARM; // 4 Software SCI additional parameters
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UINT32 DSLP; // 8 Driver sleep timeout
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UINT8 RM21[0xF4]; // 12 Reserved
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} OPREGION_MBOX2;
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#pragma pack ()
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//
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// OpRegion mailbox 3 (Power Conservation).
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//
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#pragma pack (1)
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typedef struct {
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UINT32 ARDY; // 0 Driver readiness
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UINT32 ASLC; // 4 ASLE interrupt command / status
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UINT32 TCHE; // 8 Technology enabled indicator
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UINT32 ALSI; // 12 Current ALS illuminance reading
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UINT32 BCLP; // 16 Backlight britness to set
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UINT32 PFIT; // 20 Panel fitting Current State or Request
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UINT32 CBLV; // 24 Brightness Current State
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UINT16 BCLM[0x14]; // 28 Backlight Brightness Level Duty Cycle Mapping Table
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UINT32 CPFM; // 68 Panel Fitting Current Mode
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UINT32 EPFM; // 72 Enabled Panel Fitting Mode
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UINT8 PLUT[0x4A]; // 76 Panel Look Up Table
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UINT32 PFMB; // 150 PWM Frequency and Minimum Brightness
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UINT32 CCDV; // 154 Color Correction Default Values
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UINT32 PCFT; // 158 Power Conservation Features
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UINT8 RM31[0x5E]; // 162 Reserved
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} OPREGION_MBOX3;
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#pragma pack ()
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//
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// OpRegion mailbox 4 (VBT).
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//
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#pragma pack (1)
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typedef struct {
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UINT8 GVD1[0x1800]; // 6K Reserved
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} OPREGION_VBT;
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#pragma pack ()
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#pragma pack (1)
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typedef struct {
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UINT8 EDIDOVRD[0x400]; // 6K Edid overriding data
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} OPREGION_MBOX5;
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#pragma pack ()
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//
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// Entire OpRegion
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//
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#pragma pack (1)
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typedef struct {
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OPREGION_HEADER Header; // OpRegion header
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OPREGION_MBOX1 MBox1; // Mailbox 1: Public ACPI Methods
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OPREGION_MBOX2 MBox2; // Mailbox 2: Software SCI Inteface
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OPREGION_MBOX3 MBox3; // Mailbox 3: Power Conservation
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OPREGION_VBT VBT; // VBT: Video BIOS Table (OEM customizable data)
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OPREGION_MBOX5 MBox5;
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} IGD_OPREGION_STRUC;
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#pragma pack ()
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//
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// Protocol data structure definition
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//
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struct _IGD_OPREGION_PROTOCOL {
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IGD_OPREGION_STRUC *OpRegion;
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};
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#endif
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