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Diffstat (limited to 'Core/EM/KbcEmul/Kbccore.c')
| -rw-r--r-- | Core/EM/KbcEmul/Kbccore.c | 341 |
1 files changed, 341 insertions, 0 deletions
diff --git a/Core/EM/KbcEmul/Kbccore.c b/Core/EM/KbcEmul/Kbccore.c new file mode 100644 index 0000000..51516de --- /dev/null +++ b/Core/EM/KbcEmul/Kbccore.c @@ -0,0 +1,341 @@ +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2011, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//********************************************************************** +// $Header: /Alaska/SOURCE/Modules/KbcEmulation/ALASKA/KBCEMUL/Kbccore.c 9 1/09/12 1:30a Rameshr $ +// +// $Revision: 9 $ +// +// $Date: 1/09/12 1:30a $ +// +//**************************************************************************** +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Modules/KbcEmulation/ALASKA/KBCEMUL/Kbccore.c $ +// +// 9 1/09/12 1:30a Rameshr +// [TAG] EIP74128 +// [Category] Improvement +// [Description] Disable the KbcEmulation Smi’s on ACPI enable and +// Disable SMI call +// [Files] Kbccore.c, KbcEmuulAcpi.c, KbcEmul.c, KbcEmul.cif, +// KbcEmul.h, KbcEmul.sdl +// +// 8 1/06/12 3:51a Rameshr +// [TAG] EIP78617 +// [Category] Bug Fix +// [Severity] Important +// [Symptom] When KBCEmulation is enabled during OS runtime phase, +// system reboots +// [RootCause] if the SMI happens from AP, Kbcemulation driver unable to +// handle it. +// [Solution] Added logic in KbcCore.c to find the CPU that cause SMI +// and access the corresponding AL register. +// [Files] Ap4x.h, KbcCore.c +// +// 7 1/06/12 3:21a Rameshr +// EIP78617 check-in removed. +// +// 5 2/10/11 1:02a Rameshr +// [TAG] EIP53687 +// [Category] Improvement +// [Description] AMI headers update for KbcEmulation Module +// [Files] KbcEmul.mak,KbcEmul.dxs,KbcEmul.c,KbcEmul.h,KbcEmulLib.h,Kbc +// EmulLib.c,Kbc.h,KbcDevEmul.h,Kbccore.c,Legacykbc.c,Legacykbd.c,LegacyMo +// use.c,VirtualKbc.c,VirtualKbd.c,VirtualMouse.c,Ap4x.h,Ap4x.c,KbcUhci.c, +// KbcUhci.h,KbcEmulIrq.c, KbcOhci.c, Kbcohci.h +// +// 4 7/08/10 1:56a Rameshr +// Ohci Emulation support Added. +// EIP 39712 +// +// 3 6/30/09 11:30a Rameshr +// Coding Standard and File header updated. +// +// 2 2/05/09 9:35a Rameshr +// Symptom : With Latest CSM Emulation doesn't work. +// Solution: Added Emulation enable code in outside SMM. This is called +// from Uhcd.c when ever USB mode changes to Legacy +// EIP:18730 +// +// 1 12/14/07 10:26a Rameshraju +// Initial Check-in +//**************************************************************************** + +//<AMI_FHDR_START> +//********************************************************************** +// +// Name: Kbccore.c +// +// Description: It has function for port 60 read, 60 write, 64 read and 64 write +// +//********************************************************************** +//<AMI_FHDR_END> + +#include "KbcEmul.h" +#include "kbc.h" +#if UHCI_EMUL_SUPPORT +#include "KbcUhci.h" +#else +#include "KbcOhci.h" +#endif + +BOOLEAN AcpiEmulationDisable=FALSE; +extern KBC* gVirtualKBC; + +#define SYNC_SMI_BIT (1 << 0) + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: FindSMICpu +// +// Description: In a Multiprocessor environment, any logical CPU can generate +// the SMI. This function finds the CPU that generates SMI by accessing +// IO 60/64 Ports +// +// Input: None +// +// Output: UINT8 CpuIndex +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +UINT8 FindSMICpu ( ) { + UINT8 CpuIndex; + UINT32 SmmIoMiscInfo; + UINT16 IOAddress; + UINT32 Smbase=0; + + for (CpuIndex = 0; CpuIndex < gSmst->NumberOfCpus; CpuIndex++) { + // + // Find which CPU caused the SMI + // + Smbase = gSmst->CpuSaveState[CpuIndex].Ia32SaveState.SMBASE; + SmmIoMiscInfo = *(UINT32 *) (((UINT8 *) (UINTN) Smbase) + 0x8000 + 0x7FA4); + IOAddress = SmmIoMiscInfo >> 16; + if (((IOAddress == 0x60) || (IOAddress == 0x64)) && (SmmIoMiscInfo & SYNC_SMI_BIT)) { + return CpuIndex; + } + } + + return 0xFF; +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: getTrapAL +// +// Description: Get the port 60 or 64 input value from the CPU save reg +// +// Input: None +// +// Output: UINT8 Value +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +UINT8 GetTrapAL() +{ + +#if UHCI_EMUL_SUPPORT + UINT8 CpuIndex; + + CpuIndex = FindSMICpu (); + ASSERT (CpuIndex != 0xFF); + return (UINT8)GET_CPUSAVESTATE_REG(CpuIndex, EAX); +#else + return GetHceInput(); +#endif + +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: setTrapAL +// +// Description: Set the port 60 or 64 output value to the CPU save reg +// +// Input: UINT8 Data +// +// Output: None +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +void SetTrapAL(UINT8 data) +{ + +#if UHCI_EMUL_SUPPORT + UINT8 CpuIndex; + + CpuIndex = FindSMICpu(); + ASSERT (CpuIndex != 0xFF); + *(UINT8*)&GET_CPUSAVESTATE_REG(CpuIndex, EAX) = data; +#endif + +} +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: trap64w +// +// Description: This function handles the Port64 write command +// +// Input: None +// +// Output: None +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> + +void trap64w() +{ + (*gVirtualKBC->kbc_write_command)( gVirtualKBC,GetTrapAL() ); +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: setTrapAL +// +// Description: This function handles the Port60 write command +// +// Input: None +// +// Output: None +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +void trap60w() +{ + (*gVirtualKBC->kbc_write_data)( gVirtualKBC,GetTrapAL() ); +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: setTrapAL +// +// Description: This function handles the Port64 Read command +// +// Input: None +// +// Output: None +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +void trap64r() +{ + SetTrapAL((*gVirtualKBC->kbc_read_status)(gVirtualKBC)); +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: setTrapAL +// +// Description: This function handles the Port60 Read command +// +// Input: None +// +// Output: None +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +void trap60r() +{ + SetTrapAL((*gVirtualKBC->kbc_read_data)(gVirtualKBC)); +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: hasTrapStatus +// +// Description: return the port 6064 trap status +// +// Input: None +// +// Output: TRUE: Trab enabled for port 6064 +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +BOOLEAN hasTrapStatus() +{ + BOOLEAN TrapStatus=FALSE; +#if UHCI_EMUL_SUPPORT + TrapStatus=Uhci_HasTrapStatus(); +#endif +#if OHCI_EMUL_SUPPORT + TrapStatus=Ohci_HasTrapStatus(); +#endif + return TrapStatus; +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: TrapEnable +// +// Description: Enable/disable the port6064 trap +// +// Input: TRUE : enable the trap. +// FALSE: Disable the trap. +// +// Output: TRUE : when suucessfully done else FALSE +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +BOOLEAN TrapEnable(BOOLEAN b) +{ + + if(AcpiEmulationDisable) { + return FALSE; + } + +#if UHCI_EMUL_SUPPORT + return Uhci_TrapEnable(b); +#endif +#if OHCI_EMUL_SUPPORT + return Ohci_TrapEnable(b); +#endif + return TRUE; +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: NonSmmTrapEnable +// +// Description: Enable/disable the port6064 trap in Non SMM +// +// Input: TRUE : enable the trap. +// FALSE: Disable the trap. +// +// Output: TRUE/FALSE +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +BOOLEAN NonSmmTrapEnable(BOOLEAN b) +{ +#if UHCI_EMUL_SUPPORT + return NonSmmUhci_TrapEnable(b); +#endif +#if OHCI_EMUL_SUPPORT + return NonSmmOhci_TrapEnable(b); +#endif + return TRUE; +} + +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2011, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//**********************************************************************
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