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-/*++
-
-Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved
-
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-
-
-Module Name:
-
- IgdOpRn.ASL
-
-Abstract:
-
- IGD OpRegion/Software SCI Reference Code for the Baytrail Family.
- This file contains the interrupt handler code for the Integrated
- Graphics Device (IGD) OpRegion/Software SCI mechanism.
-
---*/
-
-
-//NOTES:
-//
-// (1) The code contained in this file inherits the scope in which it
-// was included. So BIOS developers must be sure to include this
-// file in the scope associated with the graphics device
-// (ex. \_SB.PCI0.GFX0).
-// (2) Create a _L06 method under the GPE scope to handle the event
-// generated by the graphics driver. The _L06 method must call
-// the GSCI method in this file.
-// (3) The MCHP operation region assumes that _ADR and _BBN names
-// corresponding to bus 0, device0, function 0 have been declared
-// under the PCI0 scope.
-// (4) Before the first execution of the GSCI method, the base address
-// of the GMCH SCI OpRegion must be programmed where the driver can
-// access it. A 32bit scratch register at 0xFC in the IGD PCI
-// configuration space (B0/D2/F0/R0FCh) is used for this purpose.
-
-// Define an OperationRegion to cover the GMCH PCI configuration space as
-// described in the IGD OpRegion specificiation.
-
-// Define an OperationRegion to cover the IGD PCI configuration space as
-// described in the IGD OpRegion specificiation.
-
-OperationRegion(IGDP, PCI_Config,0x00,0x100)
-Field(IGDP, AnyAcc, NoLock, Preserve)
-{
- Offset(0x10), // GTTMMADR
- MADR, 32,
- Offset(0x50), // GMCH Graphics Control Register
- , 1,
- GIVD, 1, // IGD VGA disable bit
- , 1,
- GUMA, 5, // Stolen memory size
- , 8,
- Offset(0x54),
- , 4,
- GMFN, 1, // Gfx function 1 enable
- , 27,
- Offset(0x5C), // Stolen Memory Base Address
- GSTM, 32,
- Offset(0xE0), // Reg 0xE8, SWSCI control register
- GSSE, 1, // Graphics SCI event (1=event pending)
- GSSB, 14, // Graphics SCI scratchpad bits
- GSES, 1, // Graphics event select (1=SCI)
- Offset(0xE4),
- ASLE, 8, // Reg 0xE4, ASLE interrupt register
- , 24, // Only use first byte of ASLE reg
- Offset(0xFC),
- ASLS, 32, // Reg 0xFC, Address of the IGD OpRegion
-}
-
-Method (MCHK, 0, Serialized)
-{
-
- If (LNotEqual (MADR, 0xFFFFFFFF))
- {
- OperationRegion(IGMM,SystemMemory,MADR,0x3000)
- Field(IGMM,AnyAcc, NoLock, Preserve)
- {
- Offset(0X20C8),
- , 4,
- DCFE, 4, // DISPLAY_CLOCK_FREQUENCY_ENCODING
- }
- }
-}
-
-
-// Define an OperationRegion to cover the IGD OpRegion layout.
-
-OperationRegion(IGDM, SystemMemory, ASLB, 0x2000)
-Field(IGDM, AnyAcc, NoLock, Preserve)
-{
-
- // OpRegion Header
-
- SIGN, 128, // Signature-"IntelGraphicsMem"
- SIZE, 32, // OpRegion Size
- OVER, 32, // OpRegion Version
- SVER, 256, // System BIOS Version
- VVER, 128, // VBIOS Version
- GVER, 128, // Driver version
- MBOX, 32, // Mailboxes supported
- DMOD, 32, // Driver Model
- PCON, 32, // 96, Platform Configuration
-
- // OpRegion Mailbox 1 (Public ACPI Methods)
- // Note: Mailbox 1 is normally reserved for desktop platforms.
-
- Offset(0x100),
- DRDY, 32, // Driver readiness (ACPI notification)
- CSTS, 32, // Notification status
- CEVT, 32, // Current event
- Offset(0x120),
- DIDL, 32, // Supported display device ID list
- DDL2, 32, // Allows for 8 devices
- DDL3, 32,
- DDL4, 32,
- DDL5, 32,
- DDL6, 32,
- DDL7, 32,
- DDL8, 32,
- CPDL, 32, // Currently present display list
- CPL2, 32, // Allows for 8 devices
- CPL3, 32,
- CPL4, 32,
- CPL5, 32,
- CPL6, 32,
- CPL7, 32,
- CPL8, 32,
- CAD1, 32, // Currently active display list
- CAL2, 32, // Allows for 8 devices
- CAL3, 32,
- CAL4, 32,
- CAL5, 32,
- CAL6, 32,
- CAL7, 32,
- CAL8, 32,
- NADL, 32, // Next active display list
- NDL2, 32, // Allows for 8 devices
- NDL3, 32,
- NDL4, 32,
- NDL5, 32,
- NDL6, 32,
- NDL7, 32,
- NDL8, 32,
- ASLP, 32, // ASL sleep timeout
- TIDX, 32, // Toggle table index
- CHPD, 32, // Current hot plug enable indicator
- CLID, 32, // Current lid state indicator
- CDCK, 32, // Current docking state indicator
- SXSW, 32, // Display switch notify on resume
- EVTS, 32, // Events supported by ASL (diag only)
- CNOT, 32, // Current OS notifications (diag only)
- NRDY, 32,
-
- // OpRegion Mailbox 2 (Software SCI Interface)
-
- Offset(0x200), // SCIC
- SCIE, 1, // SCI entry bit (1=call unserviced)
- GEFC, 4, // Entry function code
- GXFC, 3, // Exit result
- GESF, 8, // Entry/exit sub-function/parameter
- , 16, // SCIC[31:16] reserved
- Offset(0x204), // PARM
- PARM, 32, // PARM register (extra parameters)
- DSLP, 32, // Driver sleep time out
-
- // OpRegion Mailbox 3 (BIOS to Driver Notification)
- // Note: Mailbox 3 is normally reserved for desktop platforms.
-
- Offset(0x300),
- ARDY, 32, // Driver readiness (power conservation)
- ASLC, 32, // ASLE interrupt command/status
- TCHE, 32, // Technology enabled indicator
- ALSI, 32, // Current ALS illuminance reading
- BCLP, 32, // Backlight brightness
- PFIT, 32, // Panel fitting state or request
- CBLV, 32, // Current brightness level
- BCLM, 320, // Backlight brightness level duty cycle mapping table
- CPFM, 32, // Current panel fitting mode
- EPFM, 32, // Enabled panel fitting modes
- PLUT, 592, // Optional. 74-byte Panel LUT Table
- PFMB, 32, // Optional. PWM Frequency and Minimum Brightness
- CCDV, 32, // Optional. Gamma, Brightness, Contrast values.
- PCFT, 32, // Optional. Power Conservation Features
-
- Offset(0x3B6),
- STAT, 32, // Status register
-
- // OpRegion Mailbox 4 (VBT)
-
- Offset(0x400),
- GVD1, 0xC000, // 6K bytes maximum VBT image
-
- // OpRegion Mailbox 5 (BIOS to Driver Notification Extension)
-
- Offset(0x1C00),
- PHED, 32, // Panel Header
- BDDC, 2048, // Panel EDID (Max 256 bytes)
-
-}
-
-
-
-// Convert boot display type into a port mask.
-
-Name (DBTB, Package()
-{
- 0x0000, // Automatic
- 0x0007, // Port-0 : Integrated CRT
- 0x0038, // Port-1 : DVO-A, or Integrated LVDS
- 0x01C0, // Port-2 : SDVO-B, or SDVO-B/C
- 0x0E00, // Port-3 : SDVO-C
- 0x003F, // [CRT + DVO-A / Integrated LVDS]
- 0x01C7, // [CRT + SDVO-B] or [CRT + SDVO-B/C]
- 0x0E07, // [CRT + SDVO-C]
- 0x01F8, // [DVO-A / Integrated LVDS + SDVO-B]
- 0x0E38, // [DVO-A / Integrated LVDS + SDVO-C]
- 0x0FC0, // [SDVO-B + SDVO-C]
- 0x0000, // Reserved
- 0x0000, // Reserved
- 0x0000, // Reserved
- 0x0000, // Reserved
- 0x0000, // Reserved
- 0x7000, // Port-4: Integrated TV
- 0x7007, // [Integrated TV + CRT]
- 0x7038, // [Integrated TV + LVDS]
- 0x71C0, // [Integrated TV + DVOB]
- 0x7E00 // [Integrated TV + DVOC]
-})
-
-// Core display clock value table.
-
-Name (CDCT, Package()
-{
- Package() {160},
- Package() {200},
- Package() {267},
- Package() {320},
- Package() {356},
- Package() {400},
-})
-
-// Defined exit result values:
-
-Name (SUCC, 1) // Exit result: Success
-Name (NVLD, 2) // Exit result: Invalid parameter
-Name (CRIT, 4) // Exit result: Critical failure
-Name (NCRT, 6) // Exit result: Non-critical failure
-
-
-/************************************************************************;
-;*
-;* Name: GSCI
-;*
-;* Description: Handles an SCI generated by the graphics driver. The
-;* PARM and SCIC input fields are parsed to determine the
-;* functionality requested by the driver. GBDA or SBCB
-;* is called based on the input data in SCIC.
-;*
-;* Usage: The method must be called in response to a GPE 06 event
-;* which will be generated by the graphics driver.
-;* Ex: Method(\_GPE._L06) {Return(\_SB.PCI0.GFX0.GSCI())}
-;*
-;* Input: PARM and SCIC are indirect inputs
-;*
-;* Output: PARM and SIC are indirect outputs
-;*
-;* References: GBDA (Get BIOS Data method), SBCB (System BIOS Callback
-;* method)
-;*
-;************************************************************************/
-
-Method (GSCI, 0, Serialized)
-{
- Include("IgdOGBDA.ASL") // "Get BIOS Data" Functions
- Include("IgdOSBCB.ASL") // "System BIOS CallBacks"
-
- If (LEqual(GEFC, 4))
- {
- Store(GBDA(), GXFC) // Process Get BIOS Data functions
- }
-
- If (LEqual(GEFC, 6))
- {
- Store(SBCB(), GXFC) // Process BIOS Callback functions
- }
-
- Store(0, GEFC) // Wipe out the entry function code
- Store(1, SCIS) // Clear the GUNIT SCI status bit in PCH ACPI I/O space.
- Store(0, GSSE) // Clear the SCI generation bit in PCI space.
- Store(0, SCIE) // Clr SCI serviced bit to signal completion
-
- Return(Zero)
-}
-
-// Include MOBLFEAT.ASL for mobile systems only. Remove for desktop.
-Include("IgdOMOBF.ASL") // IGD SCI mobile features
generated by cgit v1.1 at 2024-10-11 12:54:55 +0000