mirror of https://github.com/acidanthera/audk.git
133 lines
5.8 KiB
C
133 lines
5.8 KiB
C
/** @file
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IGD OpRegion definition from Intel Integrated Graphics Device OpRegion
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Specification.
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https://01.org/sites/default/files/documentation/acpi_igd_opregion_spec_0.pdf
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There are some mismatch between the specification and the implementation.
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The definition follows the latest implementation.
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1) INTEL_IGD_OPREGION_HEADER.RSV1[0xA0]
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2) INTEL_IGD_OPREGION_MBOX1.RSV3[0x3C]
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3) INTEL_IGD_OPREGION_MBOX3.RSV5[0x62]
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4) INTEL_IGD_OPREGION_VBT.RVBT[0x1800] Size is 6KB
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Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _IGD_OPREGION_H_
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#define _IGD_OPREGION_H_
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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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@note: These structures are packed to 1 byte offsets because the exact
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data location is required 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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separately.
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**/
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#pragma pack(1)
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///
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/// OpRegion Mailbox 0 Header structure. The OpRegion Header is used to
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/// identify a block of memory as the graphics driver OpRegion.
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/// Offset 0x0, Size 0x100
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///
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typedef struct {
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CHAR8 SIGN[0x10]; ///< Offset 0x00 OpRegion Signature
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UINT32 SIZE; ///< Offset 0x10 OpRegion Size
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UINT32 OVER; ///< Offset 0x14 OpRegion Structure Version
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UINT8 SVER[0x20]; ///< Offset 0x18 System BIOS Build Version
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UINT8 VVER[0x10]; ///< Offset 0x38 Video BIOS Build Version
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UINT8 GVER[0x10]; ///< Offset 0x48 Graphic Driver Build Version
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UINT32 MBOX; ///< Offset 0x58 Supported Mailboxes
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UINT32 DMOD; ///< Offset 0x5C Driver Model
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UINT8 RSV1[0xA0]; ///< Offset 0x60 Reserved
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} IGD_OPREGION_HEADER;
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///
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/// OpRegion Mailbox 1 - Public ACPI Methods
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/// Offset 0x100, Size 0x100
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///
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typedef struct {
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UINT32 DRDY; ///< Offset 0x100 Driver Readiness
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UINT32 CSTS; ///< Offset 0x104 Status
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UINT32 CEVT; ///< Offset 0x108 Current Event
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UINT8 RSVD[0x14]; ///< Offset 0x10C Reserved Must be Zero
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UINT32 DIDL[8]; ///< Offset 0x120 Supported Display Devices ID List
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UINT32 CPDL[8]; ///< Offset 0x140 Currently Attached Display Devices List
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UINT32 CADL[8]; ///< Offset 0x160 Currently Active Display Devices List
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UINT32 NADL[8]; ///< Offset 0x180 Next Active Devices List
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UINT32 ASLP; ///< Offset 0x1A0 ASL Sleep Time Out
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UINT32 TIDX; ///< Offset 0x1A4 Toggle Table Index
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UINT32 CHPD; ///< Offset 0x1A8 Current Hotplug Enable Indicator
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UINT32 CLID; ///< Offset 0x1AC Current Lid State Indicator
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UINT32 CDCK; ///< Offset 0x1B0 Current Docking State Indicator
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UINT32 SXSW; ///< Offset 0x1B4 Display Switch Notification on Sx State Resume
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UINT32 EVTS; ///< Offset 0x1B8 Events supported by ASL
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UINT32 CNOT; ///< Offset 0x1BC Current OS Notification
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UINT32 NRDY; ///< Offset 0x1C0 Driver Status
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UINT8 RSV3[0x3C]; ///< Offset 0x1C4 - 0x1FF Reserved
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} IGD_OPREGION_MBOX1;
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///
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/// OpRegion Mailbox 2 - Software SCI Interface
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/// Offset 0x200, Size 0x100
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///
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typedef struct {
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UINT32 SCIC; ///< Offset 0x200 Software SCI Command / Status / Data
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UINT32 PARM; ///< Offset 0x204 Software SCI Parameters
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UINT32 DSLP; ///< Offset 0x208 Driver Sleep Time Out
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UINT8 RSV4[0xF4]; ///< Offset 0x20C - 0x2FF Reserved
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} IGD_OPREGION_MBOX2;
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///
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/// OpRegion Mailbox 3 - BIOS/Driver Notification - ASLE Support
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/// Offset 0x300, Size 0x100
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///
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typedef struct {
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UINT32 ARDY; ///< Offset 0x300 Driver Readiness
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UINT32 ASLC; ///< Offset 0x304 ASLE Interrupt Command / Status
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UINT32 TCHE; ///< Offset 0x308 Technology Enabled Indicator
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UINT32 ALSI; ///< Offset 0x30C Current ALS Luminance Reading
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UINT32 BCLP; ///< Offset 0x310 Requested Backlight Brightness
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UINT32 PFIT; ///< Offset 0x314 Panel Fitting State or Request
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UINT32 CBLV; ///< Offset 0x318 Current Brightness Level
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UINT16 BCLM[0x14]; ///< Offset 0x31C Backlight Brightness Levels Duty Cycle Mapping Table
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UINT32 CPFM; ///< Offset 0x344 Current Panel Fitting Mode
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UINT32 EPFM; ///< Offset 0x348 Enabled Panel Fitting Modes
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UINT8 PLUT[0x4A]; ///< Offset 0x34C Panel Look Up Table & Identifier
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UINT32 PFMB; ///< Offset 0x396 PWM Frequency and Minimum Brightness
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UINT32 CCDV; ///< Offset 0x39A Color Correction Default Values
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UINT8 RSV5[0x62]; ///< Offset 0x39E - 0x3FF Reserved
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} IGD_OPREGION_MBOX3;
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///
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/// OpRegion Mailbox 4 - VBT Video BIOS Table
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/// Offset 0x400, Size 0x1800
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///
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typedef struct {
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UINT8 RVBT[0x1800]; ///< Offset 0x400 - 0x1BFF Raw VBT Data
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} IGD_OPREGION_MBOX4;
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///
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/// IGD OpRegion Structure
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///
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typedef struct {
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IGD_OPREGION_HEADER Header; ///< OpRegion header (Offset 0x0, Size 0x100)
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IGD_OPREGION_MBOX1 MBox1; ///< Mailbox 1: Public ACPI Methods (Offset 0x100, Size 0x100)
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IGD_OPREGION_MBOX2 MBox2; ///< Mailbox 2: Software SCI Interface (Offset 0x200, Size 0x100)
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IGD_OPREGION_MBOX3 MBox3; ///< Mailbox 3: BIOS to Driver Notification (Offset 0x300, Size 0x100)
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IGD_OPREGION_MBOX4 MBox4; ///< Mailbox 4: Video BIOS Table (VBT) (Offset 0x400, Size 0x1800)
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} IGD_OPREGION_STRUCTURE;
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#pragma pack()
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#endif
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