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Diffstat (limited to 'ReferenceCode/Chipset/SystemAgent/AcpiTables/SaSsdt/IgdOSBCB.ASL')
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1 files changed, 335 insertions, 0 deletions
diff --git a/ReferenceCode/Chipset/SystemAgent/AcpiTables/SaSsdt/IgdOSBCB.ASL b/ReferenceCode/Chipset/SystemAgent/AcpiTables/SaSsdt/IgdOSBCB.ASL new file mode 100644 index 0000000..9cb0db6 --- /dev/null +++ b/ReferenceCode/Chipset/SystemAgent/AcpiTables/SaSsdt/IgdOSBCB.ASL @@ -0,0 +1,335 @@ +/*++ + This file contains an 'Intel Peripheral Driver' and uniquely + identified as "Intel Reference Module" and is + licensed for Intel CPUs and chipsets under the terms of your + license agreement with Intel or your vendor. This file may + be modified by the user, subject to additional terms of the + license agreement +--*/ + +/*++ + +Copyright (c) 1999 - 2013 Intel Corporation. All rights reserved +This software and associated documentation (if any) is furnished +under a license and may only be used or copied in accordance +with the terms of the license. Except as permitted by such +license, no part of this software or documentation may be +reproduced, stored in a retrieval system, or transmitted in any +form or by any means without the express written consent of +Intel Corporation. + + +Module Name: + + IgdOSBCB.ASL + +Abstract: + + This file contains the system BIOS call back functionality for the + OpRegion/Software SCI mechanism. + +--*/ + + +Method (SBCB, 0, Serialized) +{ + + // Supported Callbacks: Sub-function 0 + + If (LEqual(GESF, 0x0)) + { + + //<TODO> An OEM may support the driver->SBIOS status callbacks, but + // the supported callbacks value must be modified. The code that is + // executed upon reception of the callbacks must be also be updated + // to perform the desired functionality. + + Store(0x00000000, PARM) // No callbacks supported + //Store(0x000787FD, PARM) // Used for Intel test implementaion + + // <NOTSAMPLECODE> + + Store(0x000F87DD, PARM) + + // </NOTSAMPLECODE> + + Store(Zero, GESF) // Clear the exit parameter + Return(SUCC) // "Success" + } + + // BIOS POST Completion: Sub-function 1 + + If (LEqual(GESF, 1)) + { + Store(Zero, GESF) // Clear the exit parameter + Store(Zero, PARM) + Return(SUCC) // Not supported, but no failure + } + + // Pre-Hires Set Mode: Sub-function 3 + + If (LEqual(GESF, 3)) + { + Store(Zero, GESF) // Clear the exit parameter + Store(Zero, PARM) + Return(SUCC) // Not supported, but no failure + } + + // Post-Hires Set Mode: Sub-function 4 + + If (LEqual(GESF, 4)) + { + Store(Zero, GESF) // Clear the exit parameter + Store(Zero, PARM) + Return(SUCC) // Not supported, but no failure + } + + // Display Switch: Sub-function 5 + + If (LEqual(GESF, 5)) + { + Store(Zero, GESF) // Clear the exit parameter + Store(Zero, PARM) + Return(SUCC) // Not supported, but no failure + } + + // Adapter Power State: Sub-function 7 + + If (LEqual(GESF, 7)) + { + // + // Handle Low Power S0 Idle Capability if enabled + // + If(LEqual(S0ID, One)){ + // + // Call GUAM to trigger CS Entry + // If Adapter Power State Notification = D1 (PARM[7:0]=0x01) + // + If (LEqual (And(PARM,0xFF), 0x01)) { + // GUAM - Global User Absent Mode Notification Method + \GUAM(One) // 0x01 - Power State Standby (CS Entry) + } + } + + // Upon notification from driver that the Adapter Power State = D0, + // check if previous lid event failed. If it did, retry the lid + // event here. + If(LEqual(PARM, 0)) + { + Store(CLID, Local0) + If(And(0x80000000,Local0)) + { + And(CLID, 0x0000000F, CLID) + GLID(CLID) + } + } + Store(Zero, GESF) // Clear the exit parameter + Store(Zero, PARM) + Return(SUCC) // Not supported, but no failure + } + + // Display Power State: Sub-function 8 + + If (LEqual(GESF, 8)) + { + // + // Handle Low Power S0 Idle Capability if enabled + // + If(LEqual(S0ID, One)){ + // Bits [15:8] - Power State + // 00h = On + // 01h = Standby + // 02h = Suspend + // 04h = Off + // 08h = Reduced On + Store(And(ShiftRight(PARM, 8), 0xFF), Local0) + // + // Call GUAM + // If Display Turn ON Notification (PARM [15:8] == 0) for CS Exit + // + If (LEqual (Local0, 0)) { + // GUAM - Global User Absent Mode Notification Method + \GUAM(Zero) // 0x00 - Power State On (CS Exit) + } + } + Store(Zero, GESF) // Clear the exit parameter + Store(Zero, PARM) + Return(SUCC) // Not supported, but no failure + } + + // Set Boot Display: Sub-function 9 + + If (LEqual(GESF, 9)) + { + + //<TODO> An OEM may elect to implement this method. In that case, + // the input values must be saved into non-volatile storage for + // parsing during the next boot. The following Sample code is Intel + // validated implementation. + + And(PARM, 0xFF, IBTT) // Save the boot display to NVS + Store(Zero, GESF) // Clear the exit parameter + Store(Zero, PARM) + Return(SUCC) // Reserved, "Critical failure" + } + + // Set Panel Details: Sub-function 10 (0Ah) + + If (LEqual(GESF, 10)) + { + + //<TODO> An OEM may elect to implement this method. In that case, + // the input values must be saved into non-volatile storage for + // parsing during the next boot. The following Sample code is Intel + // validated implementation. + + // Set the panel-related NVRAM variables based the input from the driver. + + And(PARM, 0xFF, IPSC) + + // Change panel type if a change is requested by the driver (Change if + // panel type input is non-zero). Zero=No change requested. + + If(And(ShiftRight(PARM, 8), 0xFF)) + { + And(ShiftRight(PARM, 8), 0xFF, IPAT) + Decrement(IPAT) // 0 = no change, so fit to CMOS map + } + And(ShiftRight(PARM, 20), 0x7, IBIA) + Store(Zero, GESF) // Clear the exit parameter + Store(Zero, PARM) + Return(SUCC) // Success + } + + // Set Internal Graphics: Sub-function 11 (0Bh) + + If (LEqual(GESF, 11)) + { + + //<TODO> An OEM may elect to implement this method. In that case, + // the input values must be saved into non-volatile storage for + // parsing during the next boot. The following Sample code is Intel + // validated implementation. + + And(ShiftRight(PARM, 1), 1, IF1E) // Program the function 1 option + + If(And(PARM, ShiftLeft(0xF, 13))) // Use fixed memory if fixed size != 0 + { + + // Fixed memory + + And(ShiftRight(PARM, 13), 0xF, IDMS) // Program fixed memory size + } + Else + { + + // DVMT memory + + And(ShiftRight(PARM, 17), 0xF, IDMS) // Program fixed memory size + } + Store(Zero, GESF) // Clear the exit parameter + Store(Zero, PARM) + Return(SUCC) // Success + } + + // Post-Hires to DOS FS: Sub-function 16 (10h) + + If (LEqual(GESF, 16)) + { + Store(Zero, GESF) // Clear the exit parameter + Store(Zero, PARM) + Return(SUCC) // Not supported, but no failure + } + + // APM Complete: Sub-function 17 (11h) + + If (LEqual(GESF, 17)) + { + + Store(ShiftLeft(LIDS, 8), PARM) // Report the lid state + Add(PARM, 0x100, PARM) // Adjust the lid state, 0 = Unknown + + Store(Zero, GESF) // Clear the exit parameter + Return(SUCC) // Not supported, but no failure + } + + // Set Spread Spectrum Clocks: Sub-function 18 (12h) + + If (LEqual(GESF, 18)) + { + + //<TODO> An OEM may elect to implement this method. In that case, + // the input values must be saved into non-volatile storage for + // parsing during the next boot. The following Sample code is Intel + // validated implementation. + + If(And(PARM, 1)) + { + If(LEqual(ShiftRight(PARM, 1), 1)) + { + Store(1, ISSC) // Enable HW SSC, only for clock 1 + } + Else + { + Store(Zero, GESF) + Return(CRIT) // Failure, as the SSC clock must be 1 + } + } + Else + { + Store(0, ISSC) // Disable SSC + } + Store(Zero, GESF) // Clear the exit parameter + Store(Zero, PARM) + Return(SUCC) // Success + } + + // Post VBE/PM Callback: Sub-function 19 (13h) + + If (LEqual(GESF, 19)) + { + Store(Zero, GESF) // Clear the exit parameter + Store(Zero, PARM) + Return(SUCC) // Not supported, but no failure + } + + // Set PAVP Data: Sub-function 20 (14h) + + If (LEqual(GESF, 20)) + { + And(PARM, 0xF, PAVP) // Store PAVP info + Store(Zero, GESF) // Clear the exit parameter + Store(Zero, PARM) + Return(SUCC) // Success + } + + // Enable/Disable Audio: Sub-function 21 (15h) + + If (LEqual(GESF, 21)) + { + If(LEqual(PARM,1)) + { + OR (\_SB.PCI0.AUDE, 0x20,\_SB.PCI0.AUDE) + \_SB.PCI0.B0D3.ABWA (1) + \_SB.PCI0.B0D3.ARST () + \_SB.PCI0.B0D3.ASTR () + \_SB.PCI0.B0D3.AINI () + \_SB.PCI0.B0D3.CXDC () + \_SB.PCI0.B0D3.ABWA (0) + Notify(\_SB.PCI0,0) + } + If(LEqual(PARM,0)) + { + AND (\_SB.PCI0.AUDE, 0xDF,\_SB.PCI0.AUDE) + Notify(\_SB.PCI0,0) + } + Store(Zero, GESF) + Store(Zero, PARM) + Return(SUCC) + } + + // A call to a reserved "System BIOS callbacks" function was received + + Store(Zero, GESF) // Clear the exit parameter + Return(SUCC) // Reserved, "Critical failure" +} |