/*++ Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License that accompanies this distribution. The full text of the license may be found at http://opensource.org/licenses/bsd-license.php. THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 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