Vlv2DeviceRefCodePkg&Vlv2TbltDevicePkg:Convert Mix to DOS.

[mirror_edk2.git] / Vlv2DeviceRefCodePkg / AcpiTablesPCAT / IgdOGBDA.ASL

/*++\r
\r
Copyright (c)  1999  - 2014, Intel Corporation. All rights reserved\r
\r
  This program and the accompanying materials are licensed and made available under\r
  the terms and conditions of the BSD License that accompanies this distribution.\r
  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php.\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
\r
\r
Module Name:\r
\r
  IgdOGBDA.ASL\r
\r
Abstract:\r
\r
  IGD OpRegion/Software SCI Reference Code for the Baytrail Family.\r
  This file contains Get BIOS Data Area funciton support for\r
  the Integrated Graphics Device (IGD) OpRegion/Software SCI mechanism.\r
\r
--*/\r
\r
\r
Method (GBDA, 0, Serialized)\r
{\r
\r
  // Supported calls: Sub-function 0\r
\r
  If (LEqual(GESF, 0))\r
  {\r
    //<TODO> Update implementation specific supported calls.  Reference\r
    // code is set to Intel's validated implementation.\r
\r
    Store(0x0000279, PARM)\r
\r
    Store(Zero, GESF)               // Clear the exit parameter\r
    Return(SUCC)                    // Success\r
  }\r
\r
  // Requested callbacks: Sub-function 1\r
\r
  If (LEqual(GESF, 1))\r
  {\r
\r
    //<TODO> Update implementation specific system BIOS requested call\r
    // back functions.  Call back functions are where the driver calls the\r
    // system BIOS at function indicated event.\r
\r
    Store(0x00000240, PARM)\r
\r
    Store(Zero, GESF)               // Clear the exit parameter\r
    Return(SUCC)                    // Success\r
  }\r
\r
  // Get Boot display Preferences: Sub-function 4\r
\r
  If (LEqual(GESF, 4))\r
  {\r
\r
    //<TODO> Update the implementation specific Get Boot Display\r
    // Preferences function.\r
\r
    And(PARM, 0xEFFF0000, PARM)     // PARM[30:16] = Boot device ports\r
    And(PARM, ShiftLeft(DeRefOf(Index(DBTB, IBTT)), 16), PARM)\r
    Or(IBTT, PARM, PARM)            // PARM[7:0] = Boot device type\r
\r
    Store(Zero, GESF)               // Clear the exit parameter\r
    Return(SUCC)                    // Success\r
  }\r
\r
  // Panel details: Sub-function 5\r
\r
  If (LEqual(GESF, 5))\r
  {\r
\r
    //<TODO> Update the implementation specific Get Panel Details\r
    // function.\r
\r
    Store(IPSC, PARM)               // Report the scaling setting\r
    Or(PARM, ShiftLeft(IPAT, 8), PARM)\r
    Add(PARM, 0x100, PARM)          // Adjust panel type, 0 = VBT default\r
    Or(PARM, ShiftLeft(LIDS, 16), PARM) // Report the lid state\r
    Add(PARM, 0x10000, PARM)        // Adjust the lid state, 0 = Unknown\r
    Or(PARM, ShiftLeft(IBLC, 18), PARM) // Report the BLC setting\r
    Or(PARM, ShiftLeft(IBIA, 20), PARM) // Report the BIA setting\r
    Store(Zero, GESF)\r
    Return(SUCC)\r
  }\r
\r
  // TV-standard/Video-connector: Sub-function 6\r
\r
  If (LEqual(GESF, 6))\r
  {\r
\r
    //<TODO> Update the implementation specific Get\r
    // TV-standard/Video-connectorPanel function.\r
\r
    Store(ITVF, PARM)\r
    Or(PARM, ShiftLeft(ITVM, 4), PARM)\r
    Store(Zero, GESF)\r
    Return(SUCC)\r
  }\r
\r
  // Internal graphics: Sub-function 7\r
\r
  If (LEqual(GESF, 7))\r
  {\r
    Store(GIVD, PARM)               // PARM[0]      - VGA mode(1=VGA)\r
    Xor(PARM, 1, PARM)              // Invert the VGA mode polarity\r
    Or(PARM, ShiftLeft(GMFN, 1), PARM) // PARM[1]   - # IGD PCI functions-1\r
    // PARM[3:2]    - Reserved\r
    // PARM[4]      - IGD D3 support(0=cold)\r
    // PARM[10:5]   - Reserved\r
    Or(PARM, ShiftLeft(3, 11), PARM) // PARM[12:11] - DVMT mode(11b = 5.0)\r
\r
    //\r
    // Report DVMT 5.0 Total Graphics memory size.\r
    //\r
    Or(PARM, ShiftLeft(IDMS, 17), PARM)   // Bits 20:17 are for Gfx total memory size\r
\r
    // If the "Set Internal Graphics" call is supported, the modified\r
    // settings flag must be programmed per the specification.  This means\r
    // that the flag must be set to indicate that system BIOS requests\r
    // these settings.  Once "Set Internal Graphics" is called, the\r
    //  modified settings flag must be cleared on all subsequent calls to\r
    // this function.\r
\r
    // Report the graphics frequency based on DISPLAY_CLOCK_FREQUENCY_ENCODING [MMADR+0x20C8]\r
\r
    Or(ShiftLeft(Derefof(Index(CDCT, \_SB.PCI0.GFX0.MCHK.DCFE)), 21),PARM, PARM)\r
\r
    Store(1, GESF)                  // Set the modified settings flag\r
    Return(SUCC)\r
  }\r
\r
  // Spread spectrum clocks: Sub-function 10\r
\r
  If (LEqual(GESF, 10))\r
  {\r
\r
    Store(0, PARM)                  // Assume SSC is disabled\r
\r
    If(ISSC)\r
    {\r
      Or(PARM, 3, PARM)       // If SSC enabled, return SSC1+Enabled\r
    }\r
\r
    Store(0, GESF)                  // Set the modified settings flag\r
    Return(SUCC)                    // Success\r
  }\r
\r
\r
  // A call to a reserved "Get BIOS data" function was received.\r
\r
  Store(Zero, GESF)                     // Clear the exit parameter\r
  Return(CRIT)                          // Reserved, "Critical failure"\r
}\r