Vlv2DeviceRefCodePkg/AcpiTablesPCAT/IgdOpRn.ASL

   1 /*++
   2
   3 Copyright (c)  1999  - 2014, Intel Corporation. All rights reserved
   4
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7
   8
   9 Module Name:
  10
  11   IgdOpRn.ASL
  12
  13 Abstract:
  14
  15   IGD OpRegion/Software SCI Reference Code for the Baytrail Family.
  16   This file contains the interrupt handler code for the Integrated
  17   Graphics Device (IGD) OpRegion/Software SCI mechanism.
  18
  19 --*/
  20
  21
  22 //NOTES:
  23 //
  24 // (1)  The code contained in this file inherits the scope in which it
  25 //      was included.  So BIOS developers must be sure to include this
  26 //      file in the scope associated with the graphics device
  27 //      (ex. \_SB.PCI0.GFX0).
  28 // (2)  Create a _L06 method under the GPE scope to handle the event
  29 //      generated by the graphics driver.  The _L06 method must call
  30 //      the GSCI method in this file.
  31 // (3)  The MCHP operation region assumes that _ADR and _BBN names
  32 //      corresponding to bus 0, device0, function 0 have been declared
  33 //      under the PCI0 scope.
  34 // (4)  Before the first execution of the GSCI method, the base address
  35 //      of the GMCH SCI OpRegion must be programmed where the driver can
  36 //      access it. A 32bit scratch register at 0xFC in the IGD PCI
  37 //      configuration space (B0/D2/F0/R0FCh) is used for this purpose.
  38
  39 //  Define an OperationRegion to cover the GMCH PCI configuration space as
  40 //  described in the IGD OpRegion specificiation.
  41
  42 //  Define an OperationRegion to cover the IGD PCI configuration space as
  43 //  described in the IGD OpRegion specificiation.
  44
  45 OperationRegion(IGDP, PCI_Config,0x00,0x100)
  46 Field(IGDP, AnyAcc, NoLock, Preserve)
  47 {
  48   Offset(0x10),  // GTTMMADR
  49   MADR,   32,
  50   Offset(0x50),  // GMCH Graphics Control Register
  51   ,   1,
  52   GIVD,   1,     // IGD VGA disable bit
  53   ,   1,
  54   GUMA,   5,     // Stolen memory size
  55   ,   8,
  56   Offset(0x54),
  57   ,   4,
  58   GMFN,   1,     // Gfx function 1 enable
  59   ,   27,
  60   Offset(0x5C),  // Stolen Memory Base Address
  61   GSTM,   32,
  62   Offset(0xE0),  // Reg 0xE8, SWSCI control register
  63   GSSE,   1,     // Graphics SCI event (1=event pending)
  64   GSSB,   14,    // Graphics SCI scratchpad bits
  65   GSES,   1,     // Graphics event select (1=SCI)
  66   Offset(0xE4),
  67   ASLE,   8,     // Reg 0xE4, ASLE interrupt register
  68   ,   24,    // Only use first byte of ASLE reg
  69   Offset(0xFC),
  70   ASLS,   32,    // Reg 0xFC, Address of the IGD OpRegion
  71 }
  72
  73 Method (MCHK, 0, Serialized)
  74 {
  75
  76   If (LNotEqual (MADR, 0xFFFFFFFF))
  77   {
  78     OperationRegion(IGMM,SystemMemory,MADR,0x3000)
  79     Field(IGMM,AnyAcc, NoLock, Preserve)
  80     {
  81       Offset(0X20C8),
  82       ,    4,
  83       DCFE,    4,                     // DISPLAY_CLOCK_FREQUENCY_ENCODING
  84     }
  85   }
  86 }
  87
  88
  89 //  Define an OperationRegion to cover the IGD OpRegion layout.
  90
  91 OperationRegion(IGDM, SystemMemory, ASLB, 0x2000)
  92 Field(IGDM, AnyAcc, NoLock, Preserve)
  93 {
  94
  95   // OpRegion Header
  96
  97   SIGN,   128,                    // Signature-"IntelGraphicsMem"
  98   SIZE,   32,                     // OpRegion Size
  99   OVER,   32,                     // OpRegion Version
 100   SVER,   256,                    // System BIOS Version
 101   VVER,   128,                    // VBIOS Version
 102   GVER,   128,                    // Driver version
 103   MBOX,   32,                     // Mailboxes supported
 104   DMOD,   32,                     // Driver Model
 105   PCON,   32,                     // 96, Platform Configuration
 106
 107   // OpRegion Mailbox 1 (Public ACPI Methods)
 108   // Note: Mailbox 1 is normally reserved for desktop platforms.
 109
 110   Offset(0x100),
 111   DRDY,   32,                     // Driver readiness (ACPI notification)
 112   CSTS,   32,                     // Notification status
 113   CEVT,   32,                     // Current event
 114   Offset(0x120),
 115   DIDL,   32,                     // Supported display device ID list
 116   DDL2,   32,                     // Allows for 8 devices
 117   DDL3,   32,
 118   DDL4,   32,
 119   DDL5,   32,
 120   DDL6,   32,
 121   DDL7,   32,
 122   DDL8,   32,
 123   CPDL,   32,                     // Currently present display list
 124   CPL2,   32,                     // Allows for 8 devices
 125   CPL3,   32,
 126   CPL4,   32,
 127   CPL5,   32,
 128   CPL6,   32,
 129   CPL7,   32,
 130   CPL8,   32,
 131   CAD1,   32,                     // Currently active display list
 132   CAL2,   32,                     // Allows for 8 devices
 133   CAL3,   32,
 134   CAL4,   32,
 135   CAL5,   32,
 136   CAL6,   32,
 137   CAL7,   32,
 138   CAL8,   32,
 139   NADL,   32,                     // Next active display list
 140   NDL2,   32,                     // Allows for 8 devices
 141   NDL3,   32,
 142   NDL4,   32,
 143   NDL5,   32,
 144   NDL6,   32,
 145   NDL7,   32,
 146   NDL8,   32,
 147   ASLP,   32,                     // ASL sleep timeout
 148   TIDX,   32,                     // Toggle table index
 149   CHPD,   32,                     // Current hot plug enable indicator
 150   CLID,   32,                     // Current lid state indicator
 151   CDCK,   32,                     // Current docking state indicator
 152   SXSW,   32,                     // Display switch notify on resume
 153   EVTS,   32,                     // Events supported by ASL (diag only)
 154   CNOT,   32,                     // Current OS notifications (diag only)
 155   NRDY,   32,
 156
 157   // OpRegion Mailbox 2 (Software SCI Interface)
 158
 159   Offset(0x200),                  // SCIC
 160   SCIE,   1,                      // SCI entry bit (1=call unserviced)
 161   GEFC,   4,                      // Entry function code
 162   GXFC,   3,                      // Exit result
 163   GESF,   8,                      // Entry/exit sub-function/parameter
 164   ,   16,                     // SCIC[31:16] reserved
 165   Offset(0x204),                  // PARM
 166   PARM,   32,                     // PARM register (extra parameters)
 167   DSLP,   32,                     // Driver sleep time out
 168
 169   // OpRegion Mailbox 3 (BIOS to Driver Notification)
 170   // Note: Mailbox 3 is normally reserved for desktop platforms.
 171
 172   Offset(0x300),
 173   ARDY,   32,                     // Driver readiness (power conservation)
 174   ASLC,   32,                     // ASLE interrupt command/status
 175   TCHE,   32,                     // Technology enabled indicator
 176   ALSI,   32,                     // Current ALS illuminance reading
 177   BCLP,   32,                     // Backlight brightness
 178   PFIT,   32,                     // Panel fitting state or request
 179   CBLV,   32,                     // Current brightness level
 180   BCLM,   320,                    // Backlight brightness level duty cycle mapping table
 181   CPFM,   32,                     // Current panel fitting mode
 182   EPFM,   32,                     // Enabled panel fitting modes
 183   PLUT,   592,                    // Optional. 74-byte Panel LUT Table
 184   PFMB,   32,                     // Optional. PWM Frequency and Minimum Brightness
 185   CCDV,   32,                     // Optional. Gamma, Brightness, Contrast values.
 186   PCFT,   32,                     // Optional. Power Conservation Features
 187
 188   Offset(0x3B6),
 189   STAT,   32,                     // Status register
 190
 191   // OpRegion Mailbox 4 (VBT)
 192
 193   Offset(0x400),
 194   GVD1,   0xC000,                 // 6K bytes maximum VBT image
 195
 196   // OpRegion Mailbox 5 (BIOS to Driver Notification Extension)
 197
 198   Offset(0x1C00),
 199   PHED,   32,                     // Panel Header
 200   BDDC,   2048,                   // Panel EDID (Max 256 bytes)
 201
 202 }
 203
 204
 205
 206 // Convert boot display type into a port mask.
 207
 208 Name (DBTB, Package()
 209 {
 210   0x0000,                         // Automatic
 211   0x0007,                         // Port-0 : Integrated CRT
 212   0x0038,                         // Port-1 : DVO-A, or Integrated LVDS
 213   0x01C0,                         // Port-2 : SDVO-B, or SDVO-B/C
 214   0x0E00,                         // Port-3 : SDVO-C
 215   0x003F,                         // [CRT + DVO-A / Integrated LVDS]
 216   0x01C7,                         // [CRT + SDVO-B] or [CRT + SDVO-B/C]
 217   0x0E07,                         // [CRT + SDVO-C]
 218   0x01F8,                         // [DVO-A / Integrated LVDS + SDVO-B]
 219   0x0E38,                         // [DVO-A / Integrated LVDS + SDVO-C]
 220   0x0FC0,                         // [SDVO-B + SDVO-C]
 221   0x0000,                         // Reserved
 222   0x0000,                         // Reserved
 223   0x0000,                         // Reserved
 224   0x0000,                         // Reserved
 225   0x0000,                         // Reserved
 226   0x7000,                         // Port-4: Integrated TV
 227   0x7007,                         // [Integrated TV + CRT]
 228   0x7038,                         // [Integrated TV + LVDS]
 229   0x71C0,                         // [Integrated TV + DVOB]
 230   0x7E00                          // [Integrated TV + DVOC]
 231 })
 232
 233 // Core display clock value table.
 234
 235 Name (CDCT, Package()
 236 {
 237   Package() {160},
 238   Package() {200},
 239   Package() {267},
 240   Package() {320},
 241   Package() {356},
 242   Package() {400},
 243 })
 244
 245 // Defined exit result values:
 246
 247 Name (SUCC, 1)                          // Exit result: Success
 248 Name (NVLD, 2)                          // Exit result: Invalid parameter
 249 Name (CRIT, 4)                          // Exit result: Critical failure
 250 Name (NCRT, 6)                          // Exit result: Non-critical failure
 251
 252
 253 /************************************************************************;
 254 ;*
 255 ;* Name: GSCI
 256 ;*
 257 ;* Description: Handles an SCI generated by the graphics driver.  The
 258 ;*              PARM and SCIC input fields are parsed to determine the
 259 ;*              functionality requested by the driver.  GBDA or SBCB
 260 ;*              is called based on the input data in SCIC.
 261 ;*
 262 ;* Usage:       The method must be called in response to a GPE 06 event
 263 ;*              which will be generated by the graphics driver.
 264 ;*              Ex: Method(\_GPE._L06) {Return(\_SB.PCI0.GFX0.GSCI())}
 265 ;*
 266 ;* Input:       PARM and SCIC are indirect inputs
 267 ;*
 268 ;* Output:      PARM and SIC are indirect outputs
 269 ;*
 270 ;* References:  GBDA (Get BIOS Data method), SBCB (System BIOS Callback
 271 ;*              method)
 272 ;*
 273 ;************************************************************************/
 274
 275 Method (GSCI, 0, Serialized)
 276 {
 277   Include("IgdOGBDA.ASL") // "Get BIOS Data" Functions
 278   Include("IgdOSBCB.ASL") // "System BIOS CallBacks"
 279
 280   If (LEqual(GEFC, 4))
 281   {
 282     Store(GBDA(), GXFC)     // Process Get BIOS Data functions
 283   }
 284
 285   If (LEqual(GEFC, 6))
 286   {
 287     Store(SBCB(), GXFC)     // Process BIOS Callback functions
 288   }
 289
 290   Store(0, GEFC)                  // Wipe out the entry function code
 291   Store(1, SCIS)                  // Clear the GUNIT SCI status bit in PCH ACPI I/O space.
 292   Store(0, GSSE)                  // Clear the SCI generation bit in PCI space.
 293   Store(0, SCIE)                  // Clr SCI serviced bit to signal completion
 294
 295   Return(Zero)
 296 }
 297
 298 // Include MOBLFEAT.ASL for mobile systems only.  Remove for desktop.
 299 Include("IgdOMOBF.ASL")     // IGD SCI mobile features