diff options
| author | David Wei <david.wei@intel.com> | 2015-01-12 09:37:20 +0000 |
|---|---|---|
| committer | zwei4 <zwei4@Edk2> | 2015-01-12 09:37:20 +0000 |
| commit | 3cbfba02fef9dae07a041fdbf2e89611d72d6f90 (patch) | |
| tree | 0b3bf0783124d38a191e09736492c0141aa36c15 /Vlv2DeviceRefCodePkg/AcpiTablesPCAT/IgdOGBDA.ASL | |
| parent | 6f785cfcc304c48ec04e542ee429df95e7b51bc5 (diff) | |
| download | edk2-platforms-3cbfba02fef9dae07a041fdbf2e89611d72d6f90.tar.xz | |
Upload BSD-licensed Vlv2TbltDevicePkg and Vlv2DeviceRefCodePkg to
https://svn.code.sf.net/p/edk2/code/trunk/edk2/,
which are for MinnowBoard MAX open source project.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: David Wei <david.wei@intel.com>
Reviewed-by: Mike Wu <mike.wu@intel.com>
Reviewed-by: Hot Tian <hot.tian@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16599 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'Vlv2DeviceRefCodePkg/AcpiTablesPCAT/IgdOGBDA.ASL')
| -rw-r--r-- | Vlv2DeviceRefCodePkg/AcpiTablesPCAT/IgdOGBDA.ASL | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/Vlv2DeviceRefCodePkg/AcpiTablesPCAT/IgdOGBDA.ASL b/Vlv2DeviceRefCodePkg/AcpiTablesPCAT/IgdOGBDA.ASL new file mode 100644 index 0000000000..d4e735e3e6 --- /dev/null +++ b/Vlv2DeviceRefCodePkg/AcpiTablesPCAT/IgdOGBDA.ASL @@ -0,0 +1,161 @@ +/*++
+
+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:
+
+ IgdOGBDA.ASL
+
+Abstract:
+
+ IGD OpRegion/Software SCI Reference Code for the Baytrail Family.
+ This file contains Get BIOS Data Area funciton support for
+ the Integrated Graphics Device (IGD) OpRegion/Software SCI mechanism.
+
+--*/
+
+
+Method (GBDA, 0, Serialized)
+{
+
+ // Supported calls: Sub-function 0
+
+ If (LEqual(GESF, 0))
+ {
+ //<TODO> Update implementation specific supported calls. Reference
+ // code is set to Intel's validated implementation.
+
+ Store(0x0000279, PARM)
+
+ Store(Zero, GESF) // Clear the exit parameter
+ Return(SUCC) // Success
+ }
+
+ // Requested callbacks: Sub-function 1
+
+ If (LEqual(GESF, 1))
+ {
+
+ //<TODO> Update implementation specific system BIOS requested call
+ // back functions. Call back functions are where the driver calls the
+ // system BIOS at function indicated event.
+
+ Store(0x00000240, PARM)
+
+ Store(Zero, GESF) // Clear the exit parameter
+ Return(SUCC) // Success
+ }
+
+ // Get Boot display Preferences: Sub-function 4
+
+ If (LEqual(GESF, 4))
+ {
+
+ //<TODO> Update the implementation specific Get Boot Display
+ // Preferences function.
+
+ And(PARM, 0xEFFF0000, PARM) // PARM[30:16] = Boot device ports
+ And(PARM, ShiftLeft(DeRefOf(Index(DBTB, IBTT)), 16), PARM)
+ Or(IBTT, PARM, PARM) // PARM[7:0] = Boot device type
+
+ Store(Zero, GESF) // Clear the exit parameter
+ Return(SUCC) // Success
+ }
+
+ // Panel details: Sub-function 5
+
+ If (LEqual(GESF, 5))
+ {
+
+ //<TODO> Update the implementation specific Get Panel Details
+ // function.
+
+ Store(IPSC, PARM) // Report the scaling setting
+ Or(PARM, ShiftLeft(IPAT, 8), PARM)
+ Add(PARM, 0x100, PARM) // Adjust panel type, 0 = VBT default
+ Or(PARM, ShiftLeft(LIDS, 16), PARM) // Report the lid state
+ Add(PARM, 0x10000, PARM) // Adjust the lid state, 0 = Unknown
+ Or(PARM, ShiftLeft(IBLC, 18), PARM) // Report the BLC setting
+ Or(PARM, ShiftLeft(IBIA, 20), PARM) // Report the BIA setting
+ Store(Zero, GESF)
+ Return(SUCC)
+ }
+
+ // TV-standard/Video-connector: Sub-function 6
+
+ If (LEqual(GESF, 6))
+ {
+
+ //<TODO> Update the implementation specific Get
+ // TV-standard/Video-connectorPanel function.
+
+ Store(ITVF, PARM)
+ Or(PARM, ShiftLeft(ITVM, 4), PARM)
+ Store(Zero, GESF)
+ Return(SUCC)
+ }
+
+ // Internal graphics: Sub-function 7
+
+ If (LEqual(GESF, 7))
+ {
+ Store(GIVD, PARM) // PARM[0] - VGA mode(1=VGA)
+ Xor(PARM, 1, PARM) // Invert the VGA mode polarity
+ Or(PARM, ShiftLeft(GMFN, 1), PARM) // PARM[1] - # IGD PCI functions-1
+ // PARM[3:2] - Reserved
+ // PARM[4] - IGD D3 support(0=cold)
+ // PARM[10:5] - Reserved
+ Or(PARM, ShiftLeft(3, 11), PARM) // PARM[12:11] - DVMT mode(11b = 5.0)
+
+ //
+ // Report DVMT 5.0 Total Graphics memory size.
+ //
+ Or(PARM, ShiftLeft(IDMS, 17), PARM) // Bits 20:17 are for Gfx total memory size
+
+ // If the "Set Internal Graphics" call is supported, the modified
+ // settings flag must be programmed per the specification. This means
+ // that the flag must be set to indicate that system BIOS requests
+ // these settings. Once "Set Internal Graphics" is called, the
+ // modified settings flag must be cleared on all subsequent calls to
+ // this function.
+
+ // Report the graphics frequency based on DISPLAY_CLOCK_FREQUENCY_ENCODING [MMADR+0x20C8]
+
+ Or(ShiftLeft(Derefof(Index(CDCT, \_SB.PCI0.GFX0.MCHK.DCFE)), 21),PARM, PARM)
+
+ Store(1, GESF) // Set the modified settings flag
+ Return(SUCC)
+ }
+
+ // Spread spectrum clocks: Sub-function 10
+
+ If (LEqual(GESF, 10))
+ {
+
+ Store(0, PARM) // Assume SSC is disabled
+
+ If(ISSC)
+ {
+ Or(PARM, 3, PARM) // If SSC enabled, return SSC1+Enabled
+ }
+
+ Store(0, GESF) // Set the modified settings flag
+ Return(SUCC) // Success
+ }
+
+
+ // A call to a reserved "Get BIOS data" function was received.
+
+ Store(Zero, GESF) // Clear the exit parameter
+ Return(CRIT) // Reserved, "Critical failure"
+}
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